.

go14.txt

 PASS
-BenchmarkPread1	 5000000	       269 ns/op
-ok  	command-line-arguments	1.660s
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.626s
 PASS
-BenchmarkPread1	 5000000	       269 ns/op
-ok  	command-line-arguments	1.637s
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.624s
 PASS
-BenchmarkPread1	 5000000	       269 ns/op
-ok  	command-line-arguments	1.639s
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.624s
 PASS
 BenchmarkPread1	 5000000	       270 ns/op
-ok  	command-line-arguments	1.644s
+ok  	command-line-arguments	1.639s
+PASS
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.624s
+PASS
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.630s
+PASS
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.624s
+PASS
+BenchmarkPread1	 5000000	       277 ns/op
+ok  	command-line-arguments	1.674s
+PASS
+BenchmarkPread1	 5000000	       268 ns/op
+ok  	command-line-arguments	1.630s
 PASS
-BenchmarkPread1	 5000000	       271 ns/op
-ok  	command-line-arguments	1.649s
+BenchmarkPread1	 5000000	       267 ns/op
+ok  	command-line-arguments	1.625s

go15.txt

 PASS
-BenchmarkPread1-4	 5000000	       276 ns/op
-ok  	command-line-arguments	1.672s
+BenchmarkPread1-4	 5000000	       274 ns/op
+ok  	command-line-arguments	1.657s
 PASS
-BenchmarkPread1-4	 5000000	       276 ns/op
-ok  	command-line-arguments	1.678s
+BenchmarkPread1-4	 5000000	       281 ns/op
+ok  	command-line-arguments	1.698s
+PASS
+BenchmarkPread1-4	 5000000	       278 ns/op
+ok  	command-line-arguments	1.683s
 PASS
 BenchmarkPread1-4	 5000000	       276 ns/op
-ok  	command-line-arguments	1.666s
+ok  	command-line-arguments	1.674s
+PASS
+BenchmarkPread1-4	 5000000	       277 ns/op
+ok  	command-line-arguments	1.675s
 PASS
 BenchmarkPread1-4	 5000000	       278 ns/op
-ok  	command-line-arguments	1.679s
+ok  	command-line-arguments	1.678s
+PASS
+BenchmarkPread1-4	 5000000	       272 ns/op
+ok  	command-line-arguments	1.650s
 PASS
-BenchmarkPread1-4	 5000000	       275 ns/op
-ok  	command-line-arguments	1.664s
+BenchmarkPread1-4	 5000000	       277 ns/op
+ok  	command-line-arguments	1.681s
+PASS
+BenchmarkPread1-4	 5000000	       276 ns/op
+ok  	command-line-arguments	1.671s
+PASS
+BenchmarkPread1-4	 5000000	       276 ns/op
+ok  	command-line-arguments	1.672s

go16.txt

 PASS
-BenchmarkPread1-4	 5000000	       277 ns/op
-ok  	command-line-arguments	1.680s
+BenchmarkPread1-4	 5000000	       274 ns/op
+ok  	command-line-arguments	1.660s
+PASS
+BenchmarkPread1-4	 5000000	       273 ns/op
+ok  	command-line-arguments	1.651s
 PASS
-BenchmarkPread1-4	 5000000	       276 ns/op
-ok  	command-line-arguments	1.671s
+BenchmarkPread1-4	 5000000	       275 ns/op
+ok  	command-line-arguments	1.661s
 PASS
-BenchmarkPread1-4	 5000000	       280 ns/op
-ok  	command-line-arguments	1.690s
+BenchmarkPread1-4	 5000000	       274 ns/op
+ok  	command-line-arguments	1.664s
 PASS
 BenchmarkPread1-4	 5000000	       275 ns/op
-ok  	command-line-arguments	1.666s
+ok  	command-line-arguments	1.661s
 PASS
 BenchmarkPread1-4	 5000000	       275 ns/op
-ok  	command-line-arguments	1.668s
+ok  	command-line-arguments	1.663s
+PASS
+BenchmarkPread1-4	 5000000	       273 ns/op
+ok  	command-line-arguments	1.656s
+PASS
+BenchmarkPread1-4	 5000000	       274 ns/op
+ok  	command-line-arguments	1.658s
+PASS
+BenchmarkPread1-4	 5000000	       273 ns/op
+ok  	command-line-arguments	1.656s
+PASS
+BenchmarkPread1-4	 5000000	       277 ns/op
+ok  	command-line-arguments	1.675s

go17.txt

+BenchmarkPread1-4   	 5000000	       272 ns/op
+PASS
+ok  	command-line-arguments	1.642s
 BenchmarkPread1-4   	 5000000	       271 ns/op
 PASS
-ok  	command-line-arguments	1.638s
+ok  	command-line-arguments	1.643s
 BenchmarkPread1-4   	 5000000	       272 ns/op
 PASS
-ok  	command-line-arguments	1.642s
-BenchmarkPread1-4   	 5000000	       270 ns/op
+ok  	command-line-arguments	1.641s
+BenchmarkPread1-4   	 5000000	       274 ns/op
 PASS
-ok  	command-line-arguments	1.633s
+ok  	command-line-arguments	1.656s
 BenchmarkPread1-4   	 5000000	       273 ns/op
 PASS
-ok  	command-line-arguments	1.648s
-BenchmarkPread1-4   	 5000000	       272 ns/op
+ok  	command-line-arguments	1.650s
+BenchmarkPread1-4   	 5000000	       274 ns/op
+PASS
+ok  	command-line-arguments	1.653s
+BenchmarkPread1-4   	 5000000	       274 ns/op
+PASS
+ok  	command-line-arguments	1.655s
+BenchmarkPread1-4   	 5000000	       273 ns/op
+PASS
+ok  	command-line-arguments	1.646s
+BenchmarkPread1-4   	 5000000	       273 ns/op
+PASS
+ok  	command-line-arguments	1.650s
+BenchmarkPread1-4   	 5000000	       273 ns/op
 PASS
-ok  	command-line-arguments	1.649s
+ok  	command-line-arguments	1.650s

go18.txt

-BenchmarkPread1-4   	 5000000	       261 ns/op
+BenchmarkPread1-4   	 5000000	       269 ns/op
 PASS
-ok  	command-line-arguments	1.581s
-BenchmarkPread1-4   	 5000000	       264 ns/op
+ok  	command-line-arguments	1.622s
+BenchmarkPread1-4   	 5000000	       262 ns/op
 PASS
-ok  	command-line-arguments	1.597s
+ok  	command-line-arguments	1.586s
 BenchmarkPread1-4   	 5000000	       263 ns/op
 PASS
-ok  	command-line-arguments	1.588s
-BenchmarkPread1-4   	 5000000	       263 ns/op
+ok  	command-line-arguments	1.594s
+BenchmarkPread1-4   	 5000000	       262 ns/op
 PASS
 ok  	command-line-arguments	1.588s
 BenchmarkPread1-4   	 5000000	       262 ns/op
 PASS
-ok  	command-line-arguments	1.589s
+ok  	command-line-arguments	1.585s
+BenchmarkPread1-4   	 5000000	       267 ns/op
+PASS
+ok  	command-line-arguments	1.609s
+BenchmarkPread1-4   	 5000000	       264 ns/op
+PASS
+ok  	command-line-arguments	1.594s
+BenchmarkPread1-4   	 5000000	       266 ns/op
+PASS
+ok  	command-line-arguments	1.606s
+BenchmarkPread1-4   	 5000000	       273 ns/op
+PASS
+ok  	command-line-arguments	1.671s
+BenchmarkPread1-4   	 5000000	       263 ns/op
+PASS
+ok  	command-line-arguments	1.590s

gotip.txt

 goos: linux
 goarch: amd64
-BenchmarkPread1-4   	 5000000	       323 ns/op
+BenchmarkPread1-4   	 5000000	       324 ns/op
+PASS
+ok  	command-line-arguments	1.956s
+goos: linux
+goarch: amd64
+BenchmarkPread1-4   	 5000000	       327 ns/op
+PASS
+ok  	command-line-arguments	1.968s
+goos: linux
+goarch: amd64
+BenchmarkPread1-4   	 5000000	       327 ns/op
+PASS
+ok  	command-line-arguments	1.973s
+goos: linux
+goarch: amd64
+BenchmarkPread1-4   	 5000000	       329 ns/op
 PASS
-ok  	command-line-arguments	1.951s
+ok  	command-line-arguments	1.982s
+goos: linux
+goarch: amd64
+BenchmarkPread1-4   	 5000000	       324 ns/op
+PASS
+ok  	command-line-arguments	1.962s
 goos: linux
 goarch: amd64
 BenchmarkPread1-4   	 5000000	       323 ns/op
 PASS
-ok  	command-line-arguments	1.951s
+ok  	command-line-arguments	1.950s
 goos: linux
 goarch: amd64
 BenchmarkPread1-4   	 5000000	       323 ns/op
@@ -17,9 +37,14 @@ goos: linux
 goarch: amd64
 BenchmarkPread1-4   	 5000000	       323 ns/op
 PASS
-ok  	command-line-arguments	1.952s
+ok  	command-line-arguments	1.950s
 goos: linux
 goarch: amd64
-BenchmarkPread1-4   	 5000000	       325 ns/op
+BenchmarkPread1-4   	 5000000	       323 ns/op
+PASS
+ok  	command-line-arguments	1.950s
+goos: linux
+goarch: amd64
+BenchmarkPread1-4   	 5000000	       323 ns/op
 PASS
-ok  	command-line-arguments	1.964s
+ok  	command-line-arguments	1.950s

gov.txt

 name \ time/op  go14.txt    go15.txt    go16.txt    go17.txt    go18.txt    gotip.txt
-Pread1          270ns ± 1%
-Pread1-4                    276ns ± 1%  277ns ± 1%  272ns ± 1%  263ns ± 1%  323ns ± 0%
+Pread1          267ns ± 0%
+Pread1-4                    277ns ± 1%  274ns ± 1%  273ns ± 1%  265ns ± 3%  325ns ± 1%