Commits · 174e4835a91308d18b555c2eb905ca46572a82f1 · Kirill Smelkov / neo

28 Feb, 2018 1 commit
- . · 174e4835
  Kirill Smelkov authored Feb 28, 2018
  
  174e4835
27 Feb, 2018 2 commits
- X benchplot: Start of automated plotting for neotest benchmark data · cceca65f
  Kirill Smelkov authored Feb 27, 2018
```
very draft; work in progress.
```
  cceca65f
- X benchlib: Python module to read & work with data in Go benchmark format · 502d9477
  Kirill Smelkov authored Feb 27, 2018
  
  502d9477
26 Feb, 2018 5 commits

X zhash: Show N(obj) read, not 1, in place of N(iter) · f834f40d
Kirill Smelkov authored Feb 26, 2018

f834f40d

X zwrk: New tool to simulate paralell load from multiple clients · 7f22bba6

Kirill Smelkov authored Feb 26, 2018

Similarly to wrk on HTTP.

Rationale: simulating multiple clients is:

1. noisy - the timings from run to run are changing sometimes up to 50%
2. with significant additional overhead - there are constant OS-level
   process switches in between client processes and this prevents to
   actually create the load.
3. the above load from "2" actually takes resources from the server in
   localhost case.

So let's switch to simlating many requests in lightweight way similarly
to how it is done in wrk - in one process and not so many threads (it
can be just 1) with many connections opened to server and epolly way to
load it with Go providing epoll-goroutine matching.

7f22bba6

X bench-cpu += crc32, adler32 · c86ba1b0
Kirill Smelkov authored Feb 26, 2018

c86ba1b0
X zlib: no need to benchmark on wczdata-{avg,max} · 9562304c
Kirill Smelkov authored Feb 26, 2018
```
They are the same in size.
```
9562304c
X neonet: Avoid integer overflow on max packet length check · 6b9ed46d
Kirill Smelkov authored Feb 26, 2018
```
`proto.PktHeaderLen + packed.Ntoh32(pkth.MsgLen)` could wrap int32 if
sent pkth.MsgLen is big.
```
6b9ed46d

23 Feb, 2018 1 commit

X teach golang to access ZEO · a16e8d52

Kirill Smelkov authored Feb 23, 2018

For the reference on deco (performance, frequence not fixed):

	name                           time/object
	deco/fs1/zhash.py              15.8µs ± 2%
	deco/fs1/zhash.py-P16           116µs ±12%
	deco/fs1/zhash.go              2.60µs ± 0%
	deco/fs1/zhash.go+prefetch128  3.70µs ±11%
	deco/fs1/zhash.go-P16          13.4µs ±43%
	deco/zeo/zhash.py               316µs ± 7%
	deco/zeo/zhash.py-P16          2.68ms ± 7%
	deco/zeo/zhash.go               111µs ± 2%
	deco/zeo/zhash.go+prefetch128  57.7µs ± 2%
	deco/zeo/zhash.go-P16          1.23ms ± 5%

a16e8d52

22 Feb, 2018 2 commits

X rio: localhost timings (only performance governor, C-states are enabled, turbo not disabled...) · 39a77e3b

Kirill Smelkov authored Feb 22, 2018

Compared to 55a64368 (rio localhost; 2017-11-06) the change is in kernel:

-# Linux rio 4.13.0-1-amd64 #1 SMP Debian 4.13.4-2 (2017-10-15) x86_64 GNU/Linux
+# Linux rio 4.15.0-1-amd64 #1 SMP Debian 4.15.4-1 (2018-02-18) x86_64 GNU/Linux

and in particular 4.15 comes with PTI.

summary:

- direct disk 4K read is ~ 93µs as it was
- pagecache is now slower due to PTI: the timing changed 0.6µs -> 0.8µs
- fs1.py access is ~2% slower, probably due to PTI
- fs1.go access is much slower due to client cache being always bolted
  on: 2.4µs -> 3.8µs (serial). The time for both serial and parallel
  cases is still small.
- zeo is ~2% slower, probably due to PTI.
- neo/py/sqlite vs zhash.py is 8% faster - because we removed
  data compression from the benchmark (b9827725), however P16 time is
  not improved.
- neo/py/sqlite vs zhash.go is 40% faster - because we removed data
  compression from the benchmark and previously neo/go code was very
  inefficient at zlib decompression (924831e7, 9acb87a8, 57524491).
  However P16 time is improved only by 2-5%.
- neo/py/sql vs zhash.{py,go} - similar changes to neo/py/sqlite
- neo/go/fs1 vs zhash.py - unchanged; vs zhash.go - slower by 12% -
  probably due to PTI. zhash.go P16 case is improved by ~35% but it
  could be all noise.
- newly introduces neo/go/sqlite vs zhash.go is at ~ 80-88µs for serial
  and ~ 230-300µs for P16 latencies (neo/py/sqlite for the same vs
  zhash.go is at ~ 120-130µs for serial and ~1600µs for P16 latencies).
  Clearly neo/go/sqlite needs more work.

Full details:

$ benchstat -split dataset 20180222-rio.txt  |grep sqlite |grep 'neo.go'
rio/neo/go/sqlite/zhash.py                      230µs ± 2%
rio/neo/go/sqlite/zhash.py-P16                  937µs ± 5%
rio/neo/go/sqlite/zhash.go                     88.4µs ± 2%
rio/neo/go/sqlite/zhash.go+prefetch128         33.6µs ± 7%
rio/neo/go/sqlite/zhash.go-P16                  228µs ±39%
rio/neo/go/sqlite(!sha1)/zhash.go              79.7µs ± 3%
rio/neo/go/sqlite(!sha1)/zhash.go+prefetch128  32.2µs ± 8%
rio/neo/go/sqlite(!sha1)/zhash.go-P16           213µs ±42%
rio/neo/go/sqlite/zhash.py                      232µs ± 2%
rio/neo/go/sqlite/zhash.py-P16                 1.00ms ± 3%
rio/neo/go/sqlite/zhash.go                     79.2µs ± 2%
rio/neo/go/sqlite/zhash.go+prefetch128         29.8µs ± 8%
rio/neo/go/sqlite/zhash.go-P16                  302µs ±40%
rio/neo/go/sqlite(!sha1)/zhash.go              78.3µs ± 2%
rio/neo/go/sqlite(!sha1)/zhash.go+prefetch128  31.1µs ± 2%
rio/neo/go/sqlite(!sha1)/zhash.go-P16           311µs ±40%

$ benchstat -split dataset 20171106-time-rio-Cenabled.txt 20180222-rio.txt

name                                          old pystone/s    new pystone/s    delta
rio/pystone                                         178k ± 2%        180k ± 3%      ~     (p=0.421 n=5+5)

name                                          old time/op      new time/op      delta
rio/disk/randread/direct/4K-min                   34.0µs ± 1%      34.7µs ± 1%    +2.06%  (p=0.008 n=5+5)
rio/disk/randread/direct/4K-avg                   92.9µs ± 0%      93.2µs ± 0%    +0.37%  (p=0.024 n=5+5)
rio/disk/randread/pagecache/4K-min                 221ns ± 0%       441ns ± 0%   +99.37%  (p=0.016 n=4+5)
rio/disk/randread/pagecache/4K-avg                 637ns ± 0%       872ns ± 1%   +37.01%  (p=0.016 n=4+5)

name                                          old time/object  new time/object  delta
dataset:wczblk1-8
rio/fs1/zhash.py                                  22.3µs ± 2%      22.8µs ± 2%    +2.24%  (p=0.048 n=5+5)
rio/fs1/zhash.py-P16                              51.7µs ±72%      60.3µs ±49%      ~     (p=0.127 n=15+16)
rio/fs1/zhash.go                                  2.40µs ± 0%      3.80µs ± 0%   +58.33%  (p=0.016 n=5+4)
rio/fs1/zhash.go+prefetch128                      4.34µs ± 8%      4.10µs ± 2%      ~     (p=0.246 n=5+5)
rio/fs1/zhash.go-P16                              3.58µs ±24%      6.79µs ±19%   +90.01%  (p=0.000 n=16+14)
rio/zeo/zhash.py                                   336µs ± 2%       342µs ± 2%    +1.82%  (p=0.040 n=5+5)
rio/zeo/zhash.py-P16                              1.61ms ±19%      1.64ms ±20%      ~     (p=0.423 n=16+16)
rio/neo/py/sqlite/zhash.py                         304µs ± 6%       279µs ± 3%    -8.11%  (p=0.016 n=5+5)
rio/neo/py/sqlite/zhash.py-P16                    2.19ms ± 0%      2.28ms ± 1%    +4.16%  (p=0.000 n=13+15)
rio/neo/py/sqlite/zhash.go                         248µs ± 1%       147µs ± 2%   -40.70%  (p=0.008 n=5+5)
rio/neo/py/sqlite/zhash.go+prefetch128             125µs ± 1%       125µs ± 2%      ~     (p=0.651 n=5+5)
rio/neo/py/sqlite/zhash.go-P16                    1.76ms ±13%      1.73ms ±14%    -1.72%  (p=0.002 n=16+16)
rio/neo/py(!log)/sqlite/zhash.py                   291µs ± 2%       267µs ± 1%    -8.20%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.py-P16              2.01ms ± 2%      2.01ms ± 1%      ~     (p=0.545 n=16+15)
rio/neo/py(!log)/sqlite/zhash.go                   231µs ± 1%       130µs ± 2%   -43.54%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go+prefetch128       110µs ± 2%       112µs ± 4%      ~     (p=0.222 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go-P16              1.62ms ± 7%      1.62ms ± 0%    +0.18%  (p=0.029 n=16+11)
rio/neo/py/sql/zhash.py                            325µs ± 4%       294µs ± 1%    -9.50%  (p=0.029 n=4+4)
rio/neo/py/sql/zhash.py-P16                       2.88ms ± 1%      2.85ms ± 1%    -0.94%  (p=0.000 n=15+15)
rio/neo/py/sql/zhash.go                            275µs ± 2%       169µs ± 3%   -38.39%  (p=0.008 n=5+5)
rio/neo/py/sql/zhash.go+prefetch128                154µs ± 3%       154µs ± 4%      ~     (p=1.000 n=5+5)
rio/neo/py/sql/zhash.go-P16                       2.30ms ± 8%      2.19ms ±11%    -5.03%  (p=0.009 n=16+16)
rio/neo/py(!log)/sql/zhash.py                      313µs ± 4%       285µs ± 5%    -8.95%  (p=0.029 n=4+4)
rio/neo/py(!log)/sql/zhash.py-P16                 2.56ms ± 1%      2.47ms ± 1%    -3.45%  (p=0.000 n=15+14)
rio/neo/py(!log)/sql/zhash.go                      258µs ± 1%       152µs ± 1%   -41.05%  (p=0.016 n=5+4)
rio/neo/py(!log)/sql/zhash.go+prefetch128          139µs ± 1%       137µs ± 3%      ~     (p=0.151 n=5+5)
rio/neo/py(!log)/sql/zhash.go-P16                 2.21ms ± 5%      1.98ms ± 0%   -10.19%  (p=0.000 n=16+11)
rio/neo/go/fs1/zhash.py                            190µs ± 3%       190µs ± 4%      ~     (p=1.000 n=5+5)
rio/neo/go/fs1/zhash.py-P16                        784µs ± 9%       755µs ± 7%    -3.69%  (p=0.018 n=16+16)
rio/neo/go/fs1/zhash.go                           52.0µs ± 1%      58.0µs ± 3%   +11.55%  (p=0.008 n=5+5)
rio/neo/go/fs1/zhash.go+prefetch128               26.6µs ± 5%      24.9µs ± 4%      ~     (p=0.087 n=5+5)
rio/neo/go/fs1/zhash.go-P16                        256µs ± 6%       164µs ±50%   -36.13%  (p=0.000 n=15+16)
rio/neo/go/fs1(!sha1)/zhash.go                    35.3µs ± 4%      37.3µs ± 2%    +5.73%  (p=0.008 n=5+5)
rio/neo/go/fs1(!sha1)/zhash.go+prefetch128        17.3µs ± 2%      16.3µs ± 2%    -6.00%  (p=0.008 n=5+5)
rio/neo/go/fs1(!sha1)/zhash.go-P16                 152µs ±13%       118µs ±51%   -22.57%  (p=0.000 n=13+16)
dataset:prod1-1024
rio/fs1/zhash.py                                  18.9µs ± 1%      18.9µs ± 2%      ~     (p=0.825 n=5+5)
rio/fs1/zhash.py-P16                              58.0µs ±52%      56.2µs ±32%      ~     (p=0.926 n=16+16)
rio/fs1/zhash.go                                  1.30µs ± 0%      2.80µs ± 0%  +115.38%  (p=0.016 n=4+5)
rio/fs1/zhash.go+prefetch128                      2.78µs ±14%      2.70µs ± 0%      ~     (p=0.413 n=5+4)
rio/fs1/zhash.go-P16                              2.24µs ±16%      6.59µs ±43%  +194.93%  (p=0.000 n=14+16)
rio/zeo/zhash.py                                   302µs ± 7%       294µs ± 6%      ~     (p=0.310 n=5+5)
rio/zeo/zhash.py-P16                              1.44ms ±11%      1.46ms ± 3%      ~     (p=0.892 n=15+13)
rio/neo/py/sqlite/zhash.py                         269µs ± 1%       275µs ± 1%    +2.51%  (p=0.008 n=5+5)
rio/neo/py/sqlite/zhash.py-P16                    2.19ms ± 0%      2.34ms ± 0%    +6.70%  (p=0.000 n=16+13)
rio/neo/py/sqlite/zhash.go                         158µs ± 1%       140µs ± 3%   -11.68%  (p=0.008 n=5+5)
rio/neo/py/sqlite/zhash.go+prefetch128             116µs ± 3%       118µs ± 1%      ~     (p=0.111 n=5+5)
rio/neo/py/sqlite/zhash.go-P16                    1.90ms ± 0%      1.81ms ± 7%    -4.58%  (p=0.000 n=14+16)
rio/neo/py(!log)/sqlite/zhash.py                   259µs ± 4%       262µs ± 3%      ~     (p=0.690 n=5+5)
rio/neo/py(!log)/sqlite/zhash.py-P16              1.89ms ± 1%      2.04ms ± 0%    +7.53%  (p=0.000 n=15+15)
rio/neo/py(!log)/sqlite/zhash.go                   142µs ± 1%       123µs ± 2%   -13.14%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go+prefetch128       101µs ± 2%       103µs ± 1%    +2.37%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go-P16              1.57ms ± 0%      1.61ms ± 5%      ~     (p=0.089 n=13+16)
rio/neo/py/sql/zhash.py                            337µs ±43%       298µs ± 3%      ~     (p=0.556 n=5+4)
rio/neo/py/sql/zhash.py-P16                       2.73ms ± 0%      2.86ms ± 0%    +4.74%  (p=0.000 n=15+15)
rio/neo/py/sql/zhash.go                            186µs ± 3%       164µs ± 4%   -11.92%  (p=0.008 n=5+5)
rio/neo/py/sql/zhash.go+prefetch128                145µs ± 2%       147µs ± 2%      ~     (p=0.095 n=5+5)
rio/neo/py/sql/zhash.go-P16                       2.29ms ± 6%      2.27ms ± 6%    -1.19%  (p=0.002 n=16+16)
rio/neo/py(!log)/sql/zhash.py                      293µs ± 4%       287µs ± 2%      ~     (p=0.343 n=4+4)
rio/neo/py(!log)/sql/zhash.py-P16                 2.47ms ± 0%      2.51ms ± 1%    +1.61%  (p=0.000 n=15+15)
rio/neo/py(!log)/sql/zhash.go                      168µs ± 1%       146µs ± 2%   -13.49%  (p=0.008 n=5+5)
rio/neo/py(!log)/sql/zhash.go+prefetch128          130µs ± 2%       127µs ± 2%      ~     (p=0.056 n=5+5)
rio/neo/py(!log)/sql/zhash.go-P16                 2.08ms ± 3%      2.00ms ± 4%    -3.98%  (p=0.009 n=16+16)
rio/neo/go/fs1/zhash.py                            181µs ± 5%       189µs ± 9%      ~     (p=0.079 n=5+5)
rio/neo/go/fs1/zhash.py-P16                        714µs ± 6%       711µs ± 3%      ~     (p=0.861 n=15+16)
rio/neo/go/fs1/zhash.go                           36.9µs ± 3%      41.8µs ± 2%   +13.21%  (p=0.008 n=5+5)
rio/neo/go/fs1/zhash.go+prefetch128               16.5µs ± 1%      16.8µs ± 3%      ~     (p=0.103 n=5+5)
rio/neo/go/fs1/zhash.go-P16                        239µs ± 4%       195µs ± 4%   -18.37%  (p=0.000 n=15+13)
rio/neo/go/fs1(!sha1)/zhash.go                    32.7µs ± 7%      36.3µs ± 2%   +11.07%  (p=0.008 n=5+5)
rio/neo/go/fs1(!sha1)/zhash.go+prefetch128        13.5µs ± 1%      13.9µs ± 4%      ~     (p=0.056 n=5+5)
rio/neo/go/fs1(!sha1)/zhash.go-P16                 190µs ± 7%       138µs ±60%   -27.42%  (p=0.000 n=14+16)

name                                          old pystone/s    new pystone/s    delta
rio/pystone                                         178k ± 2%        180k ± 3%      ~     (p=0.421 n=5+5)

name                                          old time/op      new time/op      delta
rio/disk/randread/direct/4K-min                   34.0µs ± 1%      34.7µs ± 1%    +2.06%  (p=0.008 n=5+5)
rio/disk/randread/direct/4K-avg                   92.9µs ± 0%      93.2µs ± 0%    +0.37%  (p=0.024 n=5+5)
rio/disk/randread/pagecache/4K-min                 221ns ± 0%       441ns ± 0%   +99.37%  (p=0.016 n=4+5)
rio/disk/randread/pagecache/4K-avg                 637ns ± 0%       872ns ± 1%   +37.01%  (p=0.016 n=4+5)

name                                          old time/object  new time/object  delta
dataset:wczblk1-8
rio/fs1/zhash.py                                  22.3µs ± 2%      22.8µs ± 2%    +2.24%  (p=0.048 n=5+5)
rio/fs1/zhash.py-P16                              51.7µs ±72%      60.3µs ±49%      ~     (p=0.127 n=15+16)
rio/fs1/zhash.go                                  2.40µs ± 0%      3.80µs ± 0%   +58.33%  (p=0.016 n=5+4)
rio/fs1/zhash.go+prefetch128                      4.34µs ± 8%      4.10µs ± 2%      ~     (p=0.246 n=5+5)
rio/fs1/zhash.go-P16                              3.58µs ±24%      6.79µs ±19%   +90.01%  (p=0.000 n=16+14)
rio/zeo/zhash.py                                   336µs ± 2%       342µs ± 2%    +1.82%  (p=0.040 n=5+5)
rio/zeo/zhash.py-P16                              1.61ms ±19%      1.64ms ±20%      ~     (p=0.423 n=16+16)
rio/neo/py/sqlite/zhash.py                         304µs ± 6%       279µs ± 3%    -8.11%  (p=0.016 n=5+5)
rio/neo/py/sqlite/zhash.py-P16                    2.19ms ± 0%      2.28ms ± 1%    +4.16%  (p=0.000 n=13+15)
rio/neo/py/sqlite/zhash.go                         248µs ± 1%       147µs ± 2%   -40.70%  (p=0.008 n=5+5)
rio/neo/py/sqlite/zhash.go+prefetch128             125µs ± 1%       125µs ± 2%      ~     (p=0.651 n=5+5)
rio/neo/py/sqlite/zhash.go-P16                    1.76ms ±13%      1.73ms ±14%    -1.72%  (p=0.002 n=16+16)
rio/neo/py(!log)/sqlite/zhash.py                   291µs ± 2%       267µs ± 1%    -8.20%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.py-P16              2.01ms ± 2%      2.01ms ± 1%      ~     (p=0.545 n=16+15)
rio/neo/py(!log)/sqlite/zhash.go                   231µs ± 1%       130µs ± 2%   -43.54%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go+prefetch128       110µs ± 2%       112µs ± 4%      ~     (p=0.222 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go-P16              1.62ms ± 7%      1.62ms ± 0%    +0.18%  (p=0.029 n=16+11)
rio/neo/py/sql/zhash.py                            325µs ± 4%       294µs ± 1%    -9.50%  (p=0.029 n=4+4)
rio/neo/py/sql/zhash.py-P16                       2.88ms ± 1%      2.85ms ± 1%    -0.94%  (p=0.000 n=15+15)
rio/neo/py/sql/zhash.go                            275µs ± 2%       169µs ± 3%   -38.39%  (p=0.008 n=5+5)
rio/neo/py/sql/zhash.go+prefetch128                154µs ± 3%       154µs ± 4%      ~     (p=1.000 n=5+5)
rio/neo/py/sql/zhash.go-P16                       2.30ms ± 8%      2.19ms ±11%    -5.03%  (p=0.009 n=16+16)
rio/neo/py(!log)/sql/zhash.py                      313µs ± 4%       285µs ± 5%    -8.95%  (p=0.029 n=4+4)
rio/neo/py(!log)/sql/zhash.py-P16                 2.56ms ± 1%      2.47ms ± 1%    -3.45%  (p=0.000 n=15+14)
rio/neo/py(!log)/sql/zhash.go                      258µs ± 1%       152µs ± 1%   -41.05%  (p=0.016 n=5+4)
rio/neo/py(!log)/sql/zhash.go+prefetch128          139µs ± 1%       137µs ± 3%      ~     (p=0.151 n=5+5)
rio/neo/py(!log)/sql/zhash.go-P16                 2.21ms ± 5%      1.98ms ± 0%   -10.19%  (p=0.000 n=16+11)
dataset:prod1-1024
rio/fs1/zhash.py                                  18.9µs ± 1%      18.9µs ± 2%      ~     (p=0.825 n=5+5)
rio/fs1/zhash.py-P16                              58.0µs ±52%      56.2µs ±32%      ~     (p=0.926 n=16+16)
rio/fs1/zhash.go                                  1.30µs ± 0%      2.80µs ± 0%  +115.38%  (p=0.016 n=4+5)
rio/fs1/zhash.go+prefetch128                      2.78µs ±14%      2.70µs ± 0%      ~     (p=0.413 n=5+4)
rio/fs1/zhash.go-P16                              2.24µs ±16%      6.59µs ±43%  +194.93%  (p=0.000 n=14+16)
rio/zeo/zhash.py                                   302µs ± 7%       294µs ± 6%      ~     (p=0.310 n=5+5)
rio/zeo/zhash.py-P16                              1.44ms ±11%      1.46ms ± 3%      ~     (p=0.892 n=15+13)
rio/neo/py/sqlite/zhash.py                         269µs ± 1%       275µs ± 1%    +2.51%  (p=0.008 n=5+5)
rio/neo/py/sqlite/zhash.py-P16                    2.19ms ± 0%      2.34ms ± 0%    +6.70%  (p=0.000 n=16+13)
rio/neo/py/sqlite/zhash.go                         158µs ± 1%       140µs ± 3%   -11.68%  (p=0.008 n=5+5)
rio/neo/py/sqlite/zhash.go+prefetch128             116µs ± 3%       118µs ± 1%      ~     (p=0.111 n=5+5)
rio/neo/py/sqlite/zhash.go-P16                    1.90ms ± 0%      1.81ms ± 7%    -4.58%  (p=0.000 n=14+16)
rio/neo/py(!log)/sqlite/zhash.py                   259µs ± 4%       262µs ± 3%      ~     (p=0.690 n=5+5)
rio/neo/py(!log)/sqlite/zhash.py-P16              1.89ms ± 1%      2.04ms ± 0%    +7.53%  (p=0.000 n=15+15)
rio/neo/py(!log)/sqlite/zhash.go                   142µs ± 1%       123µs ± 2%   -13.14%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go+prefetch128       101µs ± 2%       103µs ± 1%    +2.37%  (p=0.008 n=5+5)
rio/neo/py(!log)/sqlite/zhash.go-P16              1.57ms ± 0%      1.61ms ± 5%      ~     (p=0.089 n=13+16)
rio/neo/py/sql/zhash.py                            337µs ±43%       298µs ± 3%      ~     (p=0.556 n=5+4)
rio/neo/py/sql/zhash.py-P16                       2.73ms ± 0%      2.86ms ± 0%    +4.74%  (p=0.000 n=15+15)
rio/neo/py/sql/zhash.go                            186µs ± 3%       164µs ± 4%   -11.92%  (p=0.008 n=5+5)
rio/neo/py/sql/zhash.go+prefetch128                145µs ± 2%       147µs ± 2%      ~     (p=0.095 n=5+5)
rio/neo/py/sql/zhash.go-P16                       2.29ms ± 6%      2.27ms ± 6%    -1.19%  (p=0.002 n=16+16)
rio/neo/py(!log)/sql/zhash.py                      293µs ± 4%       287µs ± 2%      ~     (p=0.343 n=4+4)
rio/neo/py(!log)/sql/zhash.py-P16                 2.47ms ± 0%      2.51ms ± 1%    +1.61%  (p=0.000 n=15+15)
rio/neo/py(!log)/sql/zhash.go                      168µs ± 1%       146µs ± 2%   -13.49%  (p=0.008 n=5+5)
rio/neo/py(!log)/sql/zhash.go+prefetch128          130µs ± 2%       127µs ± 2%      ~     (p=0.056 n=5+5)
rio/neo/py(!log)/sql/zhash.go-P16                 2.08ms ± 3%      2.00ms ± 4%    -3.98%  (p=0.009 n=16+16)

39a77e3b

. · 4bcbc04d
Kirill Smelkov authored Feb 22, 2018

4bcbc04d

21 Feb, 2018 6 commits

X switch to using no compression, because this way it is more fair for comparing storage latencies · b9827725

Kirill Smelkov authored Feb 21, 2018

benchstat 20180221-deco-noturbo.txt 20180221-deco-noturbo-noz.txt

name old pystone/s new pystone/s delta
deco/pystone 220k ± 1% 221k ± 0% ~ (p=1.000 n=5+5)

name old time/op new time/op delta
deco/sha1/py/1K 1.83µs ± 1% 1.85µs ± 2% ~ (p=0.167 n=5+5)
deco/sha1/go/1K 1.53µs ± 0% 1.53µs ± 0% ~ (p=0.556 n=4+5)
deco/sha1/py/4K 6.68µs ± 1% 6.68µs ± 1% ~ (p=0.802 n=5+5)
deco/sha1/go/4K 5.59µs ± 0% 5.59µs ± 0% ~ (p=0.151 n=5+5)
deco/sha1/py/2M 3.19ms ± 0% 3.18ms ± 0% ~ (p=0.310 n=5+5)
deco/sha1/go/2M 2.78ms ± 0% 2.78ms ± 0% ~ (p=0.222 n=5+5)
deco/unzlib/py/null-1K 2.83µs ± 2% 2.81µs ± 0% ~ (p=0.516 n=5+5)
deco/unzlib/go/null-1K 2.87µs ± 1% 2.86µs ± 0% ~ (p=0.198 n=5+5)
deco/unzlib/py/null-4K 11.3µs ± 0% 11.3µs ± 1% ~ (p=0.794 n=4+5)
deco/unzlib/go/null-4K 11.3µs ± 0% 11.3µs ± 0% ~ (p=0.548 n=5+5)
deco/unzlib/py/null-2M 6.01ms ±19% 5.71ms ± 5% ~ (p=0.421 n=5+5)
deco/unzlib/go/null-2M 4.79ms ± 0% 4.79ms ± 0% ~ (p=0.095 n=5+5)
deco/unzlib/py/wczdata-avg 27.2µs ± 1% 27.2µs ± 1% ~ (p=0.841 n=5+5)
deco/unzlib/go/wczdata-avg 26.7µs ± 0% 26.7µs ± 0% ~ (p=0.841 n=5+5)
deco/unzlib/py/wczdata-max 26.7µs ± 1% 26.6µs ± 0% ~ (p=0.222 n=5+5)
deco/unzlib/go/wczdata-max 26.5µs ± 0% 26.5µs ± 0% ~ (p=0.421 n=5+5)
deco/unzlib/py/prod1-avg 6.08µs ±23% 5.02µs ± 1% -17.40% (p=0.032 n=5+4)
deco/unzlib/go/prod1-avg 5.25µs ± 0% 5.27µs ± 1% ~ (p=1.000 n=5+5)
deco/unzlib/py/prod1-max 510µs ± 1% 512µs ± 2% ~ (p=1.000 n=4+5)
deco/unzlib/go/prod1-max 336µs ± 0% 336µs ± 0% ~ (p=0.421 n=5+5)
deco/disk/randread/direct/4K-min 104µs ± 0% 105µs ± 1% ~ (p=0.357 n=5+5)
deco/disk/randread/direct/4K-avg 143µs ± 1% 144µs ± 0% ~ (p=0.056 n=5+5)
deco/disk/randread/direct/2M-min 5.38ms ± 0% 5.48ms ± 3% ~ (p=0.698 n=4+5)
deco/disk/randread/direct/2M-avg 6.19ms ± 2% 6.13ms ± 1% ~ (p=0.167 n=5+5)
deco/disk/randread/pagecache/4K-min 576ns ± 1% 570ns ± 1% ~ (p=0.198 n=5+5)
deco/disk/randread/pagecache/4K-avg 974ns ± 1% 975ns ± 0% ~ (p=0.222 n=5+5)
deco/disk/randread/pagecache/2M-min 196µs ± 4% 195µs ± 4% ~ (p=0.841 n=5+5)
deco/disk/randread/pagecache/2M-avg 212µs ± 0% 214µs ± 0% +0.88% (p=0.008 n=5+5)

name old time/object new time/object delta
deco/fs1/zhash.py 17.9µs ±14% 18.0µs ±14% ~ (p=0.668 n=10+10)
deco/fs1/zhash.py-P16 139µs ±18% 140µs ±32% ~ (p=0.752 n=32+32)
deco/fs1/zhash.go 2.95µs ± 8% 2.97µs ± 9% ~ (p=0.809 n=10+10)
deco/fs1/zhash.go+prefetch128 3.92µs ±25% 3.82µs ±14% ~ (p=0.755 n=10+10)
deco/fs1/zhash.go-P16 13.9µs ±51% 14.1µs ±70% ~ (p=0.893 n=32+32)
deco/zeo/zhash.py 382µs ± 1% 370µs ± 5% -3.17% (p=0.011 n=6+10)
deco/zeo/zhash.py-P16 3.10ms ± 9% 3.13ms ± 5% ~ (p=0.213 n=32+29)
deco/neo/py/sqlite/zhash.py 368µs ± 9% 351µs ± 7% ~ (p=0.165 n=10+10)
deco/neo/py/sqlite/zhash.py-P16 3.20ms ± 3% 3.16ms ± 2% ~ (p=1.000 n=32+32)
deco/neo/py/sqlite/zhash.go 177µs ± 7% 153µs ± 4% -13.24% (p=0.000 n=10+10)
deco/neo/py/sqlite/zhash.go+prefetch128 129µs ± 5% 131µs ± 5% ~ (p=0.362 n=10+10)
deco/neo/py/sqlite/zhash.go-P16 2.18ms ± 6% 2.10ms ± 4% -3.66% (p=0.001 n=32+32)
deco/neo/py(!log)/sqlite/zhash.py 349µs ± 9% 322µs ± 5% -7.69% (p=0.015 n=10+10)
deco/neo/py(!log)/sqlite/zhash.py-P16 3.01ms ± 4% 2.91ms ± 2% -3.16% (p=0.001 n=32+32)
deco/neo/py(!log)/sqlite/zhash.go 161µs ± 7% 139µs ± 6% -13.77% (p=0.000 n=10+10)
deco/neo/py(!log)/sqlite/zhash.go+prefetch128 113µs ± 1% 115µs ± 5% ~ (p=0.529 n=10+10)
deco/neo/py(!log)/sqlite/zhash.go-P16 1.96ms ± 3% 1.92ms ± 2% -1.94% (p=0.001 n=32+32)
deco/neo/py/sql/zhash.py 417µs ±11% 408µs ± 9% ~ (p=0.645 n=8+8)
deco/neo/py/sql/zhash.py-P16 4.55ms ± 4% 4.52ms ± 2% ~ (p=1.000 n=32+32)
deco/neo/py/sql/zhash.go 227µs ± 9% 198µs ± 3% -12.91% (p=0.000 n=10+10)
deco/neo/py/sql/zhash.go+prefetch128 184µs ± 5% 181µs ± 3% ~ (p=0.210 n=10+10)
deco/neo/py/sql/zhash.go-P16 3.10ms ± 2% 2.91ms ± 3% -6.12% (p=0.000 n=32+32)
deco/neo/py(!log)/sql/zhash.py 404µs ±10% 381µs ± 9% ~ (p=0.161 n=8+8)
deco/neo/py(!log)/sql/zhash.py-P16 4.35ms ± 3% 4.20ms ± 1% -3.30% (p=0.000 n=32+32)
deco/neo/py(!log)/sql/zhash.go 209µs ±10% 181µs ± 2% -13.37% (p=0.000 n=10+10)
deco/neo/py(!log)/sql/zhash.go+prefetch128 161µs ± 5% 160µs ± 4% ~ (p=0.593 n=10+10)
deco/neo/py(!log)/sql/zhash.go-P16 2.76ms ± 3% 2.58ms ± 1% -6.45% (p=0.000 n=32+32)
deco/neo/go/fs1/zhash.py 222µs ± 2% 224µs ± 2% ~ (p=0.289 n=10+10)
deco/neo/go/fs1/zhash.py-P16 1.98ms ± 8% 1.96ms ± 5% ~ (p=0.638 n=32+32)
deco/neo/go/fs1/zhash.go 50.3µs ±13% 50.4µs ±14% ~ (p=0.250 n=10+10)
deco/neo/go/fs1/zhash.go+prefetch128 21.2µs ±24% 20.9µs ±21% ~ (p=0.590 n=10+10)
deco/neo/go/fs1/zhash.go-P16 334µs ±12% 336µs ±15% ~ (p=0.732 n=32+32)
deco/neo/go/fs1(!sha1)/zhash.go 38.5µs ± 3% 38.6µs ± 3% ~ (p=0.698 n=10+10)
deco/neo/go/fs1(!sha1)/zhash.go+prefetch128 15.7µs ±12% 15.2µs ±12% ~ (p=0.170 n=10+10)
deco/neo/go/fs1(!sha1)/zhash.go-P16 262µs ±22% 264µs ±21% ~ (p=0.762 n=30+32)
deco/neo/go/sqlite/zhash.py 282µs ±10% 264µs ± 4% ~ (p=0.239 n=10+10)
deco/neo/go/sqlite/zhash.py-P16 2.45ms ± 7% 2.42ms ± 3% ~ (p=0.973 n=32+31)
deco/neo/go/sqlite/zhash.go 111µs ±15% 89µs ± 5% -19.49% (p=0.000 n=10+10)
deco/neo/go/sqlite/zhash.go+prefetch128 44.6µs ±25% 37.7µs ± 7% ~ (p=0.517 n=10+10)
deco/neo/go/sqlite/zhash.go-P16 789µs ± 9% 711µs ±12% -9.89% (p=0.000 n=32+32)
deco/neo/go/sqlite(!sha1)/zhash.go 109µs ±15% 83µs ± 2% -23.96% (p=0.000 n=10+9)
deco/neo/go/sqlite(!sha1)/zhash.go+prefetch128 41.5µs ±21% 38.2µs ±19% ~ (p=0.631 n=10+10)
deco/neo/go/sqlite(!sha1)/zhash.go-P16 735µs ±11% 674µs ±17% -8.28% (p=0.002 n=32+31)

b9827725

X noturbo deco timings after speeding up zlib decompression · 0ed7b1fc

Kirill Smelkov authored Feb 21, 2018

benchstat -alpha 0.07 20180220-deco-linux4.15.4-noturbo.txt 20180221-deco-noturbo.txt

name old pystone/s new pystone/s delta
deco/pystone 219k ± 2% 220k ± 1% ~ (p=0.310 n=5+5)

name old time/op new time/op delta
deco/sha1/py/1K 1.62µs ± 0% 1.83µs ± 1% +13.15% (p=0.008 n=5+5)
deco/sha1/go/1K 1.53µs ± 0% 1.53µs ± 0% ~ (p=0.635 n=5+4)
deco/sha1/py/4K 5.78µs ± 0% 6.68µs ± 1% +15.56% (p=0.008 n=5+5)
deco/sha1/go/4K 5.59µs ± 1% 5.59µs ± 0% ~ (p=1.000 n=5+5)
deco/sha1/py/2M 2.82ms ± 0% 3.19ms ± 0% +13.05% (p=0.008 n=5+5)
deco/sha1/go/2M 2.77ms ± 0% 2.78ms ± 0% +0.20% (p=0.008 n=5+5)
deco/disk/randread/direct/4K-min 104µs ± 2% 104µs ± 0% ~ (p=0.651 n=5+5)
deco/disk/randread/direct/4K-avg 143µs ± 0% 143µs ± 1% ~ (p=0.317 n=5+5)
deco/disk/randread/direct/2M-min 5.30ms ± 4% 5.38ms ± 0% ~ (p=0.175 n=5+4)
deco/disk/randread/direct/2M-avg 6.18ms ± 1% 6.19ms ± 2% ~ (p=0.651 n=5+5)
deco/disk/randread/pagecache/4K-min 584ns ± 0% 576ns ± 1% -1.37% (p=0.016 n=5+5)
deco/disk/randread/pagecache/4K-avg 981ns ± 0% 974ns ± 1% ~ (p=0.071 n=5+5)
deco/disk/randread/pagecache/2M-min 193µs ± 5% 196µs ± 4% ~ (p=0.690 n=5+5)
deco/disk/randread/pagecache/2M-avg 211µs ± 0% 212µs ± 0% ~ (p=0.119 n=5+5)

name old time/object new time/object delta
deco/fs1/zhash.py 17.9µs ±13% 17.9µs ±14% ~ (p=0.983 n=8+10)
deco/fs1/zhash.py-P16 132µs ±19% 139µs ±18% +5.39% (p=0.054 n=32+32)
deco/fs1/zhash.go 3.00µs ± 7% 2.95µs ± 8% ~ (p=0.307 n=10+10)
deco/fs1/zhash.go+prefetch128 3.54µs ±16% 3.92µs ±25% ~ (p=0.071 n=10+10)
deco/fs1/zhash.go-P16 12.7µs ±64% 13.9µs ±51% ~ (p=0.254 n=31+32)
deco/zeo/zhash.py 369µs ±11% 382µs ± 1% +3.53% (p=0.045 n=10+6)
deco/zeo/zhash.py-P16 3.01ms ±12% 3.10ms ± 9% +2.83% (p=0.024 n=31+32)
deco/neo/py/sqlite/zhash.py 378µs ±13% 368µs ± 9% ~ (p=0.436 n=10+10)
deco/neo/py/sqlite/zhash.py-P16 3.21ms ± 3% 3.20ms ± 3% -0.41% (p=0.032 n=32+32)
deco/neo/py/sqlite/zhash.go 235µs ±24% 177µs ± 7% -24.82% (p=0.063 n=10+10)
deco/neo/py/sqlite/zhash.go+prefetch128 139µs ± 8% 129µs ± 5% -7.03% (p=0.003 n=10+10)
deco/neo/py/sqlite/zhash.go-P16 2.37ms ± 7% 2.18ms ± 6% -8.16% (p=0.001 n=32+32)
deco/neo/py(!log)/sqlite/zhash.py 355µs ±14% 349µs ± 9% ~ (p=0.579 n=10+10)
deco/neo/py(!log)/sqlite/zhash.py-P16 3.01ms ± 4% 3.01ms ± 4% ~ (p=0.989 n=32+32)
deco/neo/py(!log)/sqlite/zhash.go 213µs ±23% 161µs ± 7% -24.49% (p=0.060 n=10+10)
deco/neo/py(!log)/sqlite/zhash.go+prefetch128 123µs ± 9% 113µs ± 1% -8.23% (p=0.000 n=10+10)
deco/neo/py(!log)/sqlite/zhash.go-P16 2.12ms ± 8% 1.96ms ± 3% -7.32% (p=0.001 n=32+32)
deco/neo/py/sql/zhash.py 429µs ± 8% 417µs ±11% ~ (p=0.442 n=8+8)
deco/neo/py/sql/zhash.py-P16 4.57ms ± 3% 4.55ms ± 4% ~ (p=0.257 n=32+32)
deco/neo/py/sql/zhash.go 281µs ±19% 227µs ± 9% -18.94% (p=0.063 n=10+10)
deco/neo/py/sql/zhash.go+prefetch128 201µs ± 7% 184µs ± 5% -8.40% (p=0.002 n=10+10)
deco/neo/py/sql/zhash.go-P16 3.34ms ± 5% 3.10ms ± 2% -7.36% (p=0.000 n=32+32)
deco/neo/py(!log)/sql/zhash.py 404µs ±14% 404µs ±10% ~ (p=0.959 n=8+8)
deco/neo/py(!log)/sql/zhash.py-P16 4.34ms ± 2% 4.35ms ± 3% ~ (p=0.763 n=32+32)
deco/neo/py(!log)/sql/zhash.go 261µs ±19% 209µs ±10% -20.01% (p=0.061 n=10+10)
deco/neo/py(!log)/sql/zhash.go+prefetch128 180µs ± 7% 161µs ± 5% -10.49% (p=0.000 n=10+10)
deco/neo/py(!log)/sql/zhash.go-P16 3.00ms ± 6% 2.76ms ± 3% -7.93% (p=0.000 n=32+32)
deco/neo/go/fs1/zhash.py 220µs ± 2% 222µs ± 2% ~ (p=0.219 n=9+10)
deco/neo/go/fs1/zhash.py-P16 2.00ms ± 7% 1.98ms ± 8% ~ (p=0.112 n=32+32)
deco/neo/go/fs1/zhash.go 50.3µs ±13% 50.3µs ±13% ~ (p=0.747 n=10+10)
deco/neo/go/fs1/zhash.go+prefetch128 20.6µs ±23% 21.2µs ±24% ~ (p=0.423 n=10+10)
deco/neo/go/fs1/zhash.go-P16 325µs ±12% 334µs ±12% ~ (p=0.120 n=30+32)
deco/neo/go/fs1(!sha1)/zhash.go 39.2µs ± 3% 38.5µs ± 3% ~ (p=0.137 n=10+10)
deco/neo/go/fs1(!sha1)/zhash.go+prefetch128 15.3µs ±16% 15.7µs ±12% ~ (p=0.196 n=10+10)
deco/neo/go/fs1(!sha1)/zhash.go-P16 270µs ±31% 262µs ±22% ~ (p=0.245 n=32+30)
deco/neo/go/sqlite/zhash.py 292µs ±11% 282µs ±10% ~ (p=0.165 n=10+10)
deco/neo/go/sqlite/zhash.py-P16 2.46ms ± 7% 2.45ms ± 7% ~ (p=0.546 n=32+32)
deco/neo/go/sqlite/zhash.go 159µs ±28% 111µs ±15% -30.02% (p=0.060 n=10+10)
deco/neo/go/sqlite/zhash.go+prefetch128 80.4µs ±34% 44.6µs ±25% -44.51% (p=0.001 n=10+10)
deco/neo/go/sqlite/zhash.go-P16 1.13ms ±41% 0.79ms ± 9% -30.00% (p=0.000 n=32+32)
deco/neo/go/sqlite(!sha1)/zhash.go 155µs ±28% 109µs ±15% -29.98% (p=0.061 n=10+10)
deco/neo/go/sqlite(!sha1)/zhash.go+prefetch128 78.9µs ±36% 41.5µs ±21% -47.34% (p=0.000 n=10+10)
deco/neo/go/sqlite(!sha1)/zhash.go-P16 1.14ms ±25% 0.73ms ±11% -35.37% (p=0.000 n=32+32)

0ed7b1fc

X client: Cleanup a bit around decompressing · bf213313
Kirill Smelkov authored Feb 21, 2018

bf213313

X xzlib: Switch to github.com/DataDog/czlib to zlib Decompression · 57524491

Kirill Smelkov authored Feb 21, 2018

name old time/op new time/op delta
deco/unzlib/py/null-1K 2.12µs ± 1% 2.11µs ± 2% ~ (p=0.841 n=5+5)
deco/unzlib/go/null-1K 1.89µs ± 1% 2.27µs ± 1% +20.03% (p=0.008 n=5+5)
deco/unzlib/py/null-4K 13.5µs ± 4% 13.3µs ± 0% ~ (p=0.310 n=5+5)
deco/unzlib/go/null-4K 8.54µs ± 0% 8.91µs ± 0% +4.43% (p=0.008 n=5+5)
deco/unzlib/py/null-2M 5.20ms ±10% 5.31ms ± 1% ~ (p=0.548 n=5+5)
deco/unzlib/go/null-2M 2.58ms ± 1% 3.87ms ± 0% +50.13% (p=0.008 n=5+5)
deco/unzlib/py/wczdata-avg 24.1µs ± 1% 23.9µs ± 0% ~ (p=0.114 n=4+4)
deco/unzlib/go/wczdata-avg 68.0µs ± 1% 20.9µs ± 0% -69.29% (p=0.008 n=5+5)
deco/unzlib/py/wczdata-max 23.5µs ± 1% 23.5µs ± 0% ~ (p=0.556 n=4+5)
deco/unzlib/go/wczdata-max 67.8µs ± 0% 20.7µs ± 1% -69.45% (p=0.008 n=5+5)
deco/unzlib/py/prod1-avg 4.47µs ± 2% 4.44µs ± 1% ~ (p=0.341 n=5+5)
deco/unzlib/go/prod1-avg 11.0µs ± 0% 4.1µs ± 1% -62.39% (p=0.016 n=5+4)
deco/unzlib/py/prod1-max 326µs ± 0% 325µs ± 0% ~ (p=0.095 n=5+5)
deco/unzlib/go/prod1-max 542µs ± 0% 262µs ± 0% -51.71% (p=0.008 n=5+5)

There is also unsafe interface with czlib.UnsafeDecompress & friends which I
had not tried because even using safe interface brings ~ 3x speedup.

57524491

X xzlib: Reuse zlib decoders · 9acb87a8

Kirill Smelkov authored Feb 21, 2018

name old time/op new time/op delta
deco/unzlib/py/null-1K 2.11µs ± 1% 2.12µs ± 1% ~ (p=0.690 n=5+5)
deco/unzlib/go/null-1K 5.87µs ± 1% 1.89µs ± 1% -67.77% (p=0.008 n=5+5)
deco/unzlib/py/null-4K 13.3µs ± 1% 13.5µs ± 4% ~ (p=0.690 n=5+5)
deco/unzlib/go/null-4K 12.6µs ± 0% 8.5µs ± 0% -32.50% (p=0.008 n=5+5)
deco/unzlib/py/null-2M 5.17ms ±11% 5.20ms ±10% ~ (p=1.000 n=5+5)
deco/unzlib/go/null-2M 2.61ms ± 1% 2.58ms ± 1% -1.32% (p=0.016 n=5+5)
deco/unzlib/py/wczdata-avg 20.9µs ±14% 24.1µs ± 1% +15.05% (p=0.016 n=5+4)
deco/unzlib/go/wczdata-avg 73.0µs ± 1% 68.0µs ± 1% -6.94% (p=0.008 n=5+5)
deco/unzlib/py/wczdata-max 23.6µs ± 0% 23.5µs ± 1% ~ (p=0.905 n=5+4)
deco/unzlib/go/wczdata-max 72.7µs ± 0% 67.8µs ± 0% -6.79% (p=0.008 n=5+5)
deco/unzlib/py/prod1-avg 4.53µs ± 3% 4.47µs ± 2% ~ (p=0.310 n=5+5)
deco/unzlib/go/prod1-avg 15.5µs ± 0% 11.0µs ± 0% -29.11% (p=0.008 n=5+5)
deco/unzlib/py/prod1-max 327µs ± 1% 326µs ± 0% ~ (p=1.000 n=5+5)
deco/unzlib/go/prod1-max 545µs ± 0% 542µs ± 0% -0.68% (p=0.008 n=5+5)

still on wczdata and prod1 much slower compared to py/c zlib.

9acb87a8

X unzlib benchmarks · 924831e7
Kirill Smelkov authored Feb 21, 2018

924831e7

20 Feb, 2018 3 commits

. · 446029d4
Kirill Smelkov authored Feb 21, 2018

446029d4

X master, storage: Speak both NEO and HTTP protocol on the same port · c4776192

Kirill Smelkov authored Feb 20, 2018

We can detect which protocol a client speaks by analyzing the first few
bytes it sends. Then we can use HTTP for administrative & debugging tasks.

In particular HTTP right now allows to collect profiles and traces:

https://golang.org/pkg/net/http/pprof/

and requests tracing for places where it is used:

https://godoc.org/golang.org/x/net/trace

Even though it is a pity that such wrapping retains artifact that the
connection actually used is a wrapper connection over accepted one, the
performance impact is negligable:

name old time/object new time/object delta
deco/neo/go/fs1(!sha1)/zhash.go 31.6µs ± 2% 31.6µs ± 2% ~ (p=0.897 n=28+29)

c4776192

X noturbo deco timings for 4.12.13, 4.14.13, 4.15.4 and 4.15.4-nopti · f069dd10

Kirill Smelkov authored Feb 20, 2018

Generally pti adds quite overhead:

benchstat -split dataset 20180220-deco-linux4.15.4-noturbo.txt 20180220-deco-linux4.15.4-noturbo-nopti.txt

name old pystone/s new pystone/s delta
deco/pystone 219k ± 2% 222k ± 1% ~ (p=0.095 n=5+5)

name old time/op new time/op delta
deco/sha1/py/1K 1.62µs ± 0% 1.62µs ± 0% ~ (p=0.246 n=5+5)
deco/sha1/go/1K 1.53µs ± 0% 1.53µs ± 0% ~ (p=0.294 n=5+5)
deco/sha1/py/4K 5.78µs ± 0% 5.78µs ± 0% ~ (p=0.937 n=5+5)
deco/sha1/go/4K 5.59µs ± 1% 5.58µs ± 0% ~ (p=0.119 n=5+5)
deco/sha1/py/2M 2.82ms ± 0% 2.82ms ± 0% ~ (p=0.056 n=5+5)
deco/sha1/go/2M 2.77ms ± 0% 2.77ms ± 0% ~ (p=0.151 n=5+5)
deco/disk/randread/direct/4K-min 104µs ± 2% 103µs ± 2% ~ (p=0.302 n=5+5)
deco/disk/randread/direct/4K-avg 143µs ± 0% 142µs ± 1% ~ (p=0.056 n=5+5)
deco/disk/randread/direct/2M-min 5.30ms ± 4% 5.44ms ± 5% ~ (p=0.238 n=5+5)
deco/disk/randread/direct/2M-avg 6.18ms ± 1% 6.11ms ± 1% -1.20% (p=0.048 n=5+5)
deco/disk/randread/pagecache/4K-min 584ns ± 0% 359ns ± 1% -38.64% (p=0.008 n=5+5)
deco/disk/randread/pagecache/4K-avg 981ns ± 0% 745ns ± 0% -24.05% (p=0.008 n=5+5)
deco/disk/randread/pagecache/2M-min 193µs ± 5% 195µs ± 4% ~ (p=0.690 n=5+5)
deco/disk/randread/pagecache/2M-avg 211µs ± 0% 211µs ± 0% ~ (p=0.389 n=5+5)

name old time/object new time/object delta
dataset:wczblk1-8
deco/fs1/zhash.py 20.0µs ± 2% 19.4µs ± 2% -3.00% (p=0.029 n=4+4)
deco/fs1/zhash.py-P16 136µs ±15% 130µs ±22% ~ (p=0.346 n=16+16)
deco/fs1/zhash.go 3.20µs ± 0% 2.70µs ± 0% -15.62% (p=0.000 n=5+4)
deco/fs1/zhash.go+prefetch128 3.82µs ± 7% 3.90µs ± 8% ~ (p=0.397 n=5+5)
deco/fs1/zhash.go-P16 13.9µs ±79% 10.7µs ±82% ~ (p=0.055 n=16+16)
deco/zeo/zhash.py 378µs ± 8% 360µs ± 8% ~ (p=0.222 n=5+5)
deco/zeo/zhash.py-P16 3.16ms ± 4% 3.06ms ± 5% -3.12% (p=0.007 n=14+16)
deco/neo/py/sqlite/zhash.py 399µs ± 7% 380µs ± 3% -4.75% (p=0.032 n=5+5)
deco/neo/py/sqlite/zhash.py-P16 3.30ms ± 1% 3.18ms ± 2% -3.67% (p=0.000 n=16+16)
deco/neo/py/sqlite/zhash.go 288µs ± 1% 265µs ± 1% -8.11% (p=0.008 n=5+5)
deco/neo/py/sqlite/zhash.go+prefetch128 147µs ± 2% 139µs ± 2% -5.61% (p=0.008 n=5+5)
deco/neo/py/sqlite/zhash.go-P16 2.52ms ± 0% 2.32ms ± 1% -7.87% (p=0.000 n=14+13)
deco/neo/py(!log)/sqlite/zhash.py 380µs ± 7% 357µs ± 2% -6.01% (p=0.032 n=5+5)
deco/neo/py(!log)/sqlite/zhash.py-P16 3.10ms ± 2% 3.05ms ± 2% -1.75% (p=0.000 n=15+16)
deco/neo/py(!log)/sqlite/zhash.go 261µs ± 0% 244µs ± 1% -6.51% (p=0.008 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go+prefetch128 131µs ± 2% 126µs ± 1% -4.17% (p=0.008 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go-P16 2.28ms ± 0% 2.17ms ± 0% -4.82% (p=0.000 n=14+16)
deco/neo/py/sql/zhash.py 446µs ± 3% 424µs ± 6% ~ (p=0.200 n=4+4)
deco/neo/py/sql/zhash.py-P16 4.71ms ± 0% 4.50ms ± 1% -4.28% (p=0.000 n=15+13)
deco/neo/py/sql/zhash.go 330µs ± 1% 307µs ± 2% -6.97% (p=0.008 n=5+5)
deco/neo/py/sql/zhash.go+prefetch128 213µs ± 2% 198µs ± 1% -7.12% (p=0.008 n=5+5)
deco/neo/py/sql/zhash.go-P16 3.51ms ± 0% 3.22ms ± 0% -8.27% (p=0.000 n=15+13)
deco/neo/py(!log)/sql/zhash.py 471µs ±41% 452µs ±43% ~ (p=0.310 n=5+5)
deco/neo/py(!log)/sql/zhash.py-P16 4.41ms ± 0% 4.22ms ± 0% -4.21% (p=0.000 n=15+15)
deco/neo/py(!log)/sql/zhash.go 310µs ± 1% 288µs ± 2% -7.10% (p=0.008 n=5+5)
deco/neo/py(!log)/sql/zhash.go+prefetch128 189µs ± 4% 179µs ± 2% -4.96% (p=0.016 n=5+5)
deco/neo/py(!log)/sql/zhash.go-P16 3.16ms ± 0% 2.95ms ± 0% -6.70% (p=0.000 n=16+16)
deco/neo/go/fs1/zhash.py 224µs ± 3% 205µs ± 2% -8.54% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.py-P16 2.04ms ± 6% 1.98ms ± 8% -2.92% (p=0.012 n=15+16)
deco/neo/go/fs1/zhash.go 56.6µs ± 1% 48.8µs ± 1% -13.82% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.go+prefetch128 24.3µs ± 4% 22.9µs ± 2% -5.76% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.go-P16 337µs ±10% 307µs ± 7% -8.94% (p=0.000 n=15+14)
deco/neo/go/fs1(!sha1)/zhash.go 40.1µs ± 1% 33.5µs ± 1% -16.40% (p=0.008 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go+prefetch128 16.5µs ± 8% 16.0µs ± 9% ~ (p=0.516 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go-P16 250µs ±20% 226µs ±16% -9.35% (p=0.001 n=15+16)
deco/neo/go/sqlite/zhash.py 316µs ± 2% 283µs ± 4% -10.47% (p=0.008 n=5+5)
deco/neo/go/sqlite/zhash.py-P16 2.55ms ± 3% 2.51ms ± 2% -1.61% (p=0.011 n=16+15)
deco/neo/go/sqlite/zhash.go 203µs ± 0% 192µs ± 2% -5.26% (p=0.008 n=5+5)
deco/neo/go/sqlite/zhash.go+prefetch128 106µs ± 2% 105µs ± 7% ~ (p=0.310 n=5+5)
deco/neo/go/sqlite/zhash.go-P16 1.39ms ± 7% 1.36ms ± 6% -2.48% (p=0.012 n=16+16)
deco/neo/go/sqlite(!sha1)/zhash.go 196µs ± 0% 185µs ± 1% -5.58% (p=0.016 n=4+5)
deco/neo/go/sqlite(!sha1)/zhash.go+prefetch128 104µs ± 3% 102µs ± 2% ~ (p=0.206 n=5+5)
deco/neo/go/sqlite(!sha1)/zhash.go-P16 1.38ms ± 4% 1.31ms ±11% -5.48% (p=0.000 n=16+16)
dataset:prod1-1024
deco/fs1/zhash.py 15.9µs ± 2% 15.3µs ± 3% -3.92% (p=0.029 n=4+4)
deco/fs1/zhash.py-P16 128µs ±11% 129µs ±21% ~ (p=0.780 n=16+16)
deco/fs1/zhash.go 2.80µs ± 0% 2.30µs ± 0% -17.86% (p=0.008 n=5+5)
deco/fs1/zhash.go+prefetch128 3.26µs ± 7% 3.14µs ± 8% ~ (p=0.246 n=5+5)
deco/fs1/zhash.go-P16 12.2µs ±50% 10.9µs ±34% ~ (p=0.154 n=16+15)
deco/zeo/zhash.py 360µs ± 6% 346µs ± 2% ~ (p=0.095 n=5+5)
deco/zeo/zhash.py-P16 2.90ms ± 8% 2.89ms ± 6% ~ (p=0.631 n=15+15)
deco/neo/py/sqlite/zhash.py 357µs ± 5% 331µs ± 7% -7.39% (p=0.032 n=5+5)
deco/neo/py/sqlite/zhash.py-P16 3.12ms ± 0% 3.02ms ± 0% -3.08% (p=0.000 n=16+16)
deco/neo/py/sqlite/zhash.go 182µs ± 0% 168µs ± 1% -7.37% (p=0.008 n=5+5)
deco/neo/py/sqlite/zhash.go+prefetch128 131µs ± 2% 124µs ± 3% -5.32% (p=0.008 n=5+5)
deco/neo/py/sqlite/zhash.go-P16 2.23ms ± 0% 2.10ms ± 0% -6.02% (p=0.000 n=14+15)
deco/neo/py(!log)/sqlite/zhash.py 330µs ± 4% 316µs ± 4% ~ (p=0.095 n=5+5)
deco/neo/py(!log)/sqlite/zhash.py-P16 2.91ms ± 1% 2.82ms ± 1% -3.34% (p=0.000 n=16+16)
deco/neo/py(!log)/sqlite/zhash.go 165µs ± 0% 154µs ± 1% -6.86% (p=0.008 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go+prefetch128 114µs ± 1% 108µs ± 0% -5.75% (p=0.008 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go-P16 1.96ms ± 0% 1.85ms ± 0% -5.30% (p=0.000 n=15+15)
deco/neo/py/sql/zhash.py 411µs ± 4% 373µs ± 1% -9.25% (p=0.029 n=4+4)
deco/neo/py/sql/zhash.py-P16 4.45ms ± 0% 4.25ms ± 0% -4.47% (p=0.000 n=15+15)
deco/neo/py/sql/zhash.go 231µs ± 1% 217µs ± 1% -6.01% (p=0.008 n=5+5)
deco/neo/py/sql/zhash.go+prefetch128 189µs ± 1% 180µs ± 2% -4.71% (p=0.008 n=5+5)
deco/neo/py/sql/zhash.go-P16 3.18ms ± 0% 2.98ms ± 0% -6.51% (p=0.000 n=15+14)
deco/neo/py(!log)/sql/zhash.py 384µs ± 3% 359µs ± 3% -6.66% (p=0.029 n=4+4)
deco/neo/py(!log)/sql/zhash.py-P16 4.28ms ± 0% 4.04ms ± 0% -5.45% (p=0.000 n=16+16)
deco/neo/py(!log)/sql/zhash.go 213µs ± 1% 196µs ± 1% -7.85% (p=0.008 n=5+5)
deco/neo/py(!log)/sql/zhash.go+prefetch128 171µs ± 1% 159µs ± 1% -7.19% (p=0.008 n=5+5)
deco/neo/py(!log)/sql/zhash.go-P16 2.83ms ± 0% 2.59ms ± 3% -8.68% (p=0.000 n=16+16)
deco/neo/go/fs1/zhash.py 218µs ± 1% 201µs ± 0% -8.14% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.py-P16 1.97ms ± 2% 1.88ms ± 8% -4.25% (p=0.000 n=15+16)
deco/neo/go/fs1/zhash.go 44.1µs ± 1% 37.7µs ± 1% -14.60% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.go+prefetch128 16.9µs ± 3% 16.2µs ± 4% ~ (p=0.056 n=5+5)
deco/neo/go/fs1/zhash.go-P16 313µs ± 8% 297µs ± 9% -4.97% (p=0.000 n=15+16)
deco/neo/go/fs1(!sha1)/zhash.go 38.2µs ± 1% 32.8µs ± 2% -14.28% (p=0.008 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go+prefetch128 14.0µs ± 3% 13.1µs ± 3% -6.70% (p=0.008 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go-P16 297µs ±12% 262µs ±17% -11.89% (p=0.000 n=15+16)
deco/neo/go/sqlite/zhash.py 268µs ± 4% 244µs ± 5% -9.10% (p=0.008 n=5+5)
deco/neo/go/sqlite/zhash.py-P16 2.36ms ± 2% 2.30ms ± 3% -2.50% (p=0.000 n=15+16)
deco/neo/go/sqlite/zhash.go 114µs ± 0% 105µs ± 0% -8.44% (p=0.008 n=5+5)
deco/neo/go/sqlite/zhash.go+prefetch128 54.8µs ± 2% 52.5µs ± 1% -4.13% (p=0.008 n=5+5)
deco/neo/go/sqlite/zhash.go-P16 873µs ± 2% 812µs ± 5% -7.03% (p=0.000 n=15+14)
deco/neo/go/sqlite(!sha1)/zhash.go 114µs ± 2% 103µs ± 2% -9.58% (p=0.008 n=5+5)
deco/neo/go/sqlite(!sha1)/zhash.go+prefetch128 53.5µs ± 3% 52.0µs ± 4% ~ (p=0.111 n=5+5)
deco/neo/go/sqlite(!sha1)/zhash.go-P16 891µs ± 3% 856µs ± 2% -3.97% (p=0.000 n=16+15)

however compare to 4.12 some things got also a bit slower even without
pti (and some got faster):

benchstat -split dataset 20180220-deco-linux4.12.13-noturbo.txt 20180220-deco-linux4.15.4-noturbo-nopti.txt

name old pystone/s new pystone/s delta
deco/pystone 211k ± 1% 222k ± 1% +5.19% (p=0.008 n=5+5)

name old time/op new time/op delta
deco/sha1/py/1K 1.69µs ± 0% 1.62µs ± 0% -3.86% (p=0.008 n=5+5)
deco/sha1/go/1K 1.59µs ± 0% 1.53µs ± 0% -3.84% (p=0.008 n=5+5)
deco/sha1/py/4K 6.01µs ± 0% 5.78µs ± 0% -3.93% (p=0.008 n=5+5)
deco/sha1/go/4K 5.81µs ± 0% 5.58µs ± 0% -3.89% (p=0.008 n=5+5)
deco/sha1/py/2M 2.93ms ± 0% 2.82ms ± 0% -3.65% (p=0.008 n=5+5)
deco/sha1/go/2M 2.88ms ± 0% 2.77ms ± 0% -3.82% (p=0.008 n=5+5)
deco/disk/randread/direct/4K-min 102µs ± 0% 103µs ± 2% ~ (p=0.135 n=5+5)
deco/disk/randread/direct/4K-avg 140µs ± 0% 142µs ± 1% +1.56% (p=0.008 n=5+5)
deco/disk/randread/direct/2M-min 4.95ms ± 2% 5.44ms ± 5% +9.94% (p=0.008 n=5+5)
deco/disk/randread/direct/2M-avg 5.48ms ± 3% 6.11ms ± 1% +11.54% (p=0.008 n=5+5)
deco/disk/randread/pagecache/4K-min 313ns ± 1% 359ns ± 1% +14.64% (p=0.008 n=5+5)
deco/disk/randread/pagecache/4K-avg 706ns ± 0% 745ns ± 0% +5.50% (p=0.016 n=4+5)
deco/disk/randread/pagecache/2M-min 200µs ± 5% 195µs ± 4% ~ (p=0.310 n=5+5)
deco/disk/randread/pagecache/2M-avg 221µs ± 1% 211µs ± 0% -4.58% (p=0.008 n=5+5)

name old time/object new time/object delta
dataset:wczblk1-8
deco/fs1/zhash.py 19.8µs ± 2% 19.4µs ± 2% -2.25% (p=0.048 n=5+4)
deco/fs1/zhash.py-P16 125µs ±30% 130µs ±22% ~ (p=0.468 n=16+16)
deco/fs1/zhash.go 2.70µs ± 0% 2.70µs ± 0% ~ (all equal)
deco/fs1/zhash.go+prefetch128 3.67µs ± 2% 3.90µs ± 8% ~ (p=0.175 n=4+5)
deco/fs1/zhash.go-P16 10.6µs ±79% 10.7µs ±82% ~ (p=0.830 n=14+16)
deco/zeo/zhash.py 384µs ± 9% 360µs ± 8% ~ (p=0.151 n=5+5)
deco/zeo/zhash.py-P16 3.29ms ± 5% 3.06ms ± 5% -7.01% (p=0.000 n=15+16)
deco/neo/py/sqlite/zhash.py 388µs ± 4% 380µs ± 3% ~ (p=0.421 n=5+5)
deco/neo/py/sqlite/zhash.py-P16 3.45ms ± 1% 3.18ms ± 2% -7.82% (p=0.000 n=16+16)
deco/neo/py/sqlite/zhash.go 273µs ± 1% 265µs ± 1% -2.94% (p=0.008 n=5+5)
deco/neo/py/sqlite/zhash.go+prefetch128 141µs ± 3% 139µs ± 2% ~ (p=0.286 n=5+5)
deco/neo/py/sqlite/zhash.go-P16 2.24ms ± 1% 2.32ms ± 1% +3.74% (p=0.000 n=12+13)
deco/neo/py(!log)/sqlite/zhash.py 357µs ± 1% 357µs ± 2% ~ (p=0.690 n=5+5)
deco/neo/py(!log)/sqlite/zhash.py-P16 3.29ms ± 2% 3.05ms ± 2% -7.35% (p=0.000 n=16+16)
deco/neo/py(!log)/sqlite/zhash.go 249µs ± 0% 244µs ± 1% -1.93% (p=0.008 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go+prefetch128 128µs ± 2% 126µs ± 1% ~ (p=0.056 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go-P16 2.14ms ± 0% 2.17ms ± 0% +1.35% (p=0.000 n=16+16)
deco/neo/py/sql/zhash.py 420µs ± 1% 424µs ± 6% ~ (p=0.686 n=4+4)
deco/neo/py/sql/zhash.py-P16 4.59ms ± 0% 4.50ms ± 1% -1.86% (p=0.000 n=14+13)
deco/neo/py/sql/zhash.go 312µs ± 1% 307µs ± 2% ~ (p=0.095 n=5+5)
deco/neo/py/sql/zhash.go+prefetch128 200µs ± 2% 198µs ± 1% ~ (p=0.206 n=5+5)
deco/neo/py/sql/zhash.go-P16 3.27ms ± 0% 3.22ms ± 0% -1.57% (p=0.000 n=14+13)
deco/neo/py(!log)/sql/zhash.py 411µs ± 2% 452µs ±43% ~ (p=0.730 n=4+5)
deco/neo/py(!log)/sql/zhash.py-P16 4.20ms ± 0% 4.22ms ± 0% +0.62% (p=0.000 n=14+15)
deco/neo/py(!log)/sql/zhash.go 292µs ± 1% 288µs ± 2% ~ (p=0.095 n=5+5)
deco/neo/py(!log)/sql/zhash.go+prefetch128 180µs ± 1% 179µs ± 2% ~ (p=0.548 n=5+5)
deco/neo/py(!log)/sql/zhash.go-P16 2.88ms ± 0% 2.95ms ± 0% +2.67% (p=0.000 n=15+16)
deco/neo/go/fs1/zhash.py 209µs ± 1% 205µs ± 2% -2.06% (p=0.016 n=5+5)
deco/neo/go/fs1/zhash.py-P16 1.89ms ± 8% 1.98ms ± 8% +4.75% (p=0.002 n=16+16)
deco/neo/go/fs1/zhash.go 45.2µs ± 1% 48.8µs ± 1% +7.78% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.go+prefetch128 23.3µs ± 5% 22.9µs ± 2% ~ (p=0.643 n=5+5)
deco/neo/go/fs1/zhash.go-P16 290µs ±10% 307µs ± 7% +6.06% (p=0.002 n=16+14)
deco/neo/go/fs1(!sha1)/zhash.go 30.2µs ± 2% 33.5µs ± 1% +10.91% (p=0.008 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go+prefetch128 14.6µs ±10% 16.0µs ± 9% +9.60% (p=0.024 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go-P16 183µs ±15% 226µs ±16% +23.93% (p=0.000 n=15+16)
deco/neo/go/sqlite/zhash.py 285µs ± 4% 283µs ± 4% ~ (p=0.548 n=5+5)
deco/neo/go/sqlite/zhash.py-P16 2.44ms ± 4% 2.51ms ± 2% +3.12% (p=0.000 n=15+15)
deco/neo/go/sqlite/zhash.go 191µs ± 1% 192µs ± 2% ~ (p=0.627 n=5+5)
deco/neo/go/sqlite/zhash.go+prefetch128 106µs ± 5% 105µs ± 7% ~ (p=0.421 n=5+5)
deco/neo/go/sqlite/zhash.go-P16 1.43ms ± 2% 1.36ms ± 6% -4.96% (p=0.000 n=16+16)
deco/neo/go/sqlite(!sha1)/zhash.go 186µs ± 1% 185µs ± 1% ~ (p=0.421 n=5+5)
deco/neo/go/sqlite(!sha1)/zhash.go+prefetch128 102µs ± 3% 102µs ± 2% ~ (p=0.841 n=5+5)
deco/neo/go/sqlite(!sha1)/zhash.go-P16 1.38ms ± 8% 1.31ms ±11% -5.27% (p=0.000 n=16+16)
dataset:prod1-1024
deco/fs1/zhash.py 15.8µs ± 1% 15.3µs ± 3% -3.01% (p=0.029 n=4+4)
deco/fs1/zhash.py-P16 127µs ±11% 129µs ±21% ~ (p=0.696 n=16+16)
deco/fs1/zhash.go 2.20µs ± 0% 2.30µs ± 0% +4.55% (p=0.008 n=5+5)
deco/fs1/zhash.go+prefetch128 3.08µs ± 4% 3.14µs ± 8% ~ (p=0.794 n=5+5)
deco/fs1/zhash.go-P16 8.99µs ±66% 10.93µs ±34% ~ (p=0.127 n=16+15)
deco/zeo/zhash.py 349µs ± 5% 346µs ± 2% ~ (p=0.548 n=5+5)
deco/zeo/zhash.py-P16 3.17ms ± 2% 2.89ms ± 6% -8.82% (p=0.000 n=12+15)
deco/neo/py/sqlite/zhash.py 350µs ± 5% 331µs ± 7% ~ (p=0.056 n=5+5)
deco/neo/py/sqlite/zhash.py-P16 3.31ms ± 1% 3.02ms ± 0% -8.82% (p=0.000 n=16+16)
deco/neo/py/sqlite/zhash.go 170µs ± 0% 168µs ± 1% -0.87% (p=0.008 n=5+5)
deco/neo/py/sqlite/zhash.go+prefetch128 125µs ± 1% 124µs ± 3% ~ (p=0.421 n=5+5)
deco/neo/py/sqlite/zhash.go-P16 2.11ms ± 0% 2.10ms ± 0% -0.61% (p=0.000 n=13+15)
deco/neo/py(!log)/sqlite/zhash.py 317µs ± 1% 316µs ± 4% ~ (p=1.000 n=5+5)
deco/neo/py(!log)/sqlite/zhash.py-P16 3.01ms ± 1% 2.82ms ± 1% -6.28% (p=0.000 n=16+16)
deco/neo/py(!log)/sqlite/zhash.go 153µs ± 0% 154µs ± 1% ~ (p=0.095 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go+prefetch128 107µs ± 1% 108µs ± 0% ~ (p=0.548 n=5+5)
deco/neo/py(!log)/sqlite/zhash.go-P16 1.83ms ± 0% 1.85ms ± 0% +1.06% (p=0.000 n=16+15)
deco/neo/py/sql/zhash.py 382µs ± 2% 373µs ± 1% ~ (p=0.114 n=4+4)
deco/neo/py/sql/zhash.py-P16 4.33ms ± 0% 4.25ms ± 0% -1.99% (p=0.000 n=15+15)
deco/neo/py/sql/zhash.go 217µs ± 1% 217µs ± 1% ~ (p=1.000 n=5+5)
deco/neo/py/sql/zhash.go+prefetch128 182µs ± 1% 180µs ± 2% ~ (p=0.135 n=5+5)
deco/neo/py/sql/zhash.go-P16 2.95ms ± 4% 2.98ms ± 0% +1.10% (p=0.019 n=16+14)
deco/neo/py(!log)/sql/zhash.py 372µs ± 4% 359µs ± 3% ~ (p=0.200 n=4+4)
deco/neo/py(!log)/sql/zhash.py-P16 4.15ms ± 0% 4.04ms ± 0% -2.43% (p=0.000 n=14+16)
deco/neo/py(!log)/sql/zhash.go 194µs ± 0% 196µs ± 1% +0.87% (p=0.008 n=5+5)
deco/neo/py(!log)/sql/zhash.go+prefetch128 158µs ± 1% 159µs ± 1% ~ (p=0.246 n=5+5)
deco/neo/py(!log)/sql/zhash.go-P16 2.62ms ± 0% 2.59ms ± 3% -1.32% (p=0.017 n=15+16)
deco/neo/go/fs1/zhash.py 201µs ± 2% 201µs ± 0% ~ (p=0.690 n=5+5)
deco/neo/go/fs1/zhash.py-P16 1.77ms ± 5% 1.88ms ± 8% +6.31% (p=0.000 n=16+16)
deco/neo/go/fs1/zhash.go 34.3µs ± 1% 37.7µs ± 1% +9.73% (p=0.008 n=5+5)
deco/neo/go/fs1/zhash.go+prefetch128 15.4µs ± 3% 16.2µs ± 4% +5.05% (p=0.032 n=5+5)
deco/neo/go/fs1/zhash.go-P16 304µs ± 8% 297µs ± 9% ~ (p=0.128 n=16+16)
deco/neo/go/fs1(!sha1)/zhash.go 28.9µs ± 2% 32.8µs ± 2% +13.58% (p=0.008 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go+prefetch128 12.7µs ± 5% 13.1µs ± 3% ~ (p=0.214 n=5+5)
deco/neo/go/fs1(!sha1)/zhash.go-P16 298µs ± 2% 262µs ±17% -12.17% (p=0.000 n=13+16)
deco/neo/go/sqlite/zhash.py 241µs ± 3% 244µs ± 5% ~ (p=0.548 n=5+5)
deco/neo/go/sqlite/zhash.py-P16 2.21ms ± 3% 2.30ms ± 3% +4.41% (p=0.000 n=16+16)
deco/neo/go/sqlite/zhash.go 101µs ± 0% 105µs ± 0% +3.43% (p=0.008 n=5+5)
deco/neo/go/sqlite/zhash.go+prefetch128 53.3µs ± 3% 52.5µs ± 1% ~ (p=0.452 n=5+5)
deco/neo/go/sqlite/zhash.go-P16 839µs ± 2% 812µs ± 5% -3.28% (p=0.000 n=14+14)
deco/neo/go/sqlite(!sha1)/zhash.go 100µs ± 0% 103µs ± 2% +2.67% (p=0.016 n=4+5)
deco/neo/go/sqlite(!sha1)/zhash.go+prefetch128 52.9µs ± 4% 52.0µs ± 4% ~ (p=0.310 n=5+5)
deco/neo/go/sqlite(!sha1)/zhash.go-P16 853µs ± 3% 856µs ± 2% ~ (p=0.953 n=16+15)

f069dd10

19 Feb, 2018 1 commit
- X sqlite: Switch to using github.com/gwenn/gosqlite directly · da01e01e
  Kirill Smelkov authored Feb 19, 2018
  
  da01e01e
15 Feb, 2018 10 commits
- . · c0502d41
  Kirill Smelkov authored Feb 16, 2018
  
  c0502d41
- . · 9206bfb6
  Kirill Smelkov authored Feb 15, 2018
  
  9206bfb6
- . · 686b8976
  Kirill Smelkov authored Feb 15, 2018
  
  686b8976
- . · bbc76236
  Kirill Smelkov authored Feb 15, 2018
  
  bbc76236
- . · c70467a6
  Kirill Smelkov authored Feb 15, 2018
  
  c70467a6
- . · aa17a79e
  Kirill Smelkov authored Feb 15, 2018
  
  aa17a79e
- . · 7a98ef72
  Kirill Smelkov authored Feb 15, 2018
  
  7a98ef72
- . · 9a4004fe
  Kirill Smelkov authored Feb 15, 2018
  
  9a4004fe
- . · 860c4019
  Kirill Smelkov authored Feb 15, 2018
  
  860c4019
- . · c9a3e4ad
  Kirill Smelkov authored Feb 15, 2018
  
  c9a3e4ad
14 Feb, 2018 3 commits
- . · d5a0a0ea
  Kirill Smelkov authored Feb 14, 2018
  
  d5a0a0ea
- X StorageBackend -> storage.Backend + registry system a-la zodb · d84bb116
  Kirill Smelkov authored Feb 14, 2018
  
  d84bb116
- X split storage backend from neo.Storage · 6991ec36
  Kirill Smelkov authored Feb 14, 2018
  
  6991ec36
13 Feb, 2018 6 commits
- . · fc2f4a1a
  Kirill Smelkov authored Feb 13, 2018
  
  fc2f4a1a
- . · c5f6dc77
  Kirill Smelkov authored Feb 13, 2018
  
  c5f6dc77
- . · 933a62ce
  Kirill Smelkov authored Feb 13, 2018
  
  933a62ce
- . · 6199789e
  Kirill Smelkov authored Feb 13, 2018
  
  6199789e
- . · 98197abb
  Kirill Smelkov authored Feb 13, 2018
  
  98197abb
- . · bce3fadc
  Kirill Smelkov authored Feb 13, 2018
  
  bce3fadc