- 14 Jan, 2014 1 commit
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf tooling updates from Arnaldo Carvalho de Melo: New features: * perf record: Add --initial-delay option (Andi Kleen) * Column colouring improvements in 'diff' (Ramkumar Ramachandra) Fixes: * Don't show counter information when workload fails (Arnaldo Carvalho de Melo) * Fixup leak on error path in parse events test. (Arnaldo Carvalho de Melo) * Fix --delay option in 'stat' man page (Andi Kleen) * Use the DWARF unwind info only if loaded (Jean Pihet): Developer stuff: * Improve forked workload error reporting by sending the errno in the signal data queueing integer field, using sigqueue and by doing the signal setup in the evlist methods, removing open coded equivalents in various tools. (Arnaldo Carvalho de Melo) * Do more auto exit cleanup shores in the 'evlist' destructor, so that the tools don't have to all do that sequence. (Arnaldo Carvalho de Melo) * Pack 'struct perf_session_env' and 'struct trace' (Arnaldo Carvalho de Melo) * Include tools/lib/api/ in MANIFEST, fixing detached tarballs (Arnaldo Carvalho de Melo) * Add test for building detached source tarballs (Arnaldo Carvalho de Melo) * Shut up libtracevent plugins make message (Jiri Olsa) * Fix installation tests path setup (Jiri Olsa) * Fix id_hdr_size initialization (Jiri Olsa) * Move some header files from tools/perf/ to tools/include/ to make them available to other tools/ dwelling codebases (Namhyung Kim) * Fix 'probe' build when DWARF support libraries not present (Arnaldo Carvalho de Melo) Refactorings: * Move logic to warn about kptr_restrict'ed kernels to separate function in 'report' (Arnaldo Carvalho de Melo) * Move hist browser selection code to separate function (Arnaldo Carvalho de Melo) * Move histogram entries collapsing to separate function (Arnaldo Carvalho de Melo) * Introduce evlist__for_each() & friends (Arnaldo Carvalho de Melo) * Automate setup of FEATURE_CHECK_(C|LD)FLAGS-all variables (Jiri Olsa) * Move arch setup into seprate Makefile (Jiri Olsa) Trivial stuff: * Remove misplaced __maybe_unused in 'stat' (Arnaldo Carvalho de Melo) * Remove old evsel_list usage in 'record' (Arnaldo Carvalho de Melo) * Comment typo fix (Cody P Schafer) * Remove unused test-volatile-register-var.c (Yann Droneaud) Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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- 13 Jan, 2014 38 commits
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Yann Droneaud authored
Since commit 01287e2c, test-volatile-register-var.c is no more built as part of the automatic feature check. This patch remove the unneeded file. Signed-off-by:
Yann Droneaud <ydroneaud@opteya.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/339d86ad76741ed929defd18541f774b404003b4.1389461371.git.ydroneaud@opteya.comSigned-off-by:
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Arnaldo Carvalho de Melo authored
On a freshly installed system, after libelf-dev is installed we get: CC /tmp/build/perf/util/probe-event.o util/probe-event.c: In function ‘try_to_find_probe_trace_events’: util/probe-event.c:753:46: error: unused parameter ‘target’ [-Werror=unused-parameter] int max_tevs __maybe_unused, const char *target) ^ CC /tmp/build/perf/util/cgroup.o util/probe-event.c: At top level: util/probe-event.c:193:12: error: ‘get_text_start_address’ defined but not used [-Werror=unused-function] static int get_text_start_address(const char *exec, unsigned long *address) ^ cc1: all warnings being treated as errors make[1]: *** [/tmp/build/perf/util/probe-event.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [install] Error 2 Fix it by enclosing functions only used when those libraries are installed under the suitable preprocessor define and using __maybe_unused to a function that is only built when DWARF support is disabled. Problem introduced in this changeset: commit fb7345bb Author: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Date: Thu Dec 26 05:41:53 2013 +0000 perf probe: Support basic dwarf-based operations on uprobe events Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-73kc2fopt81517hrdgdra18o@git.kernel.orgSigned-off-by: -
Ramkumar Ramachandra authored
In $ perf diff -c wdiff:M,N color the numbers in the Weighted Diff column using color_snprintf(), picking the colors using get_percent_color(). Signed-off-by:
Ramkumar Ramachandra <artagnon@gmail.com> Acked-by:
Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1388390555-10808-1-git-send-email-artagnon@gmail.comSigned-off-by:
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Ramkumar Ramachandra authored
In $ perf diff -c ratio color the Ratio column using value_color_snprintf(), a new function that operates exactly like percent_color_snprintf(). At first glance, it looks like percent_color_snprintf() can be turned into a non-variadic function simplifying things; however, 53805eca (perf tools: Remove cast of non-variadic function to variadic, 2013-10-31) explains why it needs to be a variadic function. Signed-off-by:
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Ramkumar Ramachandra authored
Color the numbers in the Delta column using percent_color_snprintf(). Generalize the coloring function so that we can accommodate all three comparison methods in future patches: delta, ratio, and wdiff. Signed-off-by:
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Ramkumar Ramachandra authored
Make percent_color_snprintf() handle negative values correctly. Signed-off-by:
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Namhyung Kim authored
Since it uses unlikely() macro inside WARN() Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1389276059-8829-5-git-send-email-namhyung@kernel.orgSigned-off-by:
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Andi Kleen authored
perf stat has a --delay option to delay measuring the workload. This is useful to skip measuring the startup phase of the program, which is often very different from the main workload. The same is useful for perf record when sampling. --no-delay was already taken, so add a --initial-delay to perf record too. -D was already taken for record, so there is only a long option. v2: Don't disable group members (Namhyung Kim) v3: port to latest perf/core rename to --initial-delay to avoid conflict with --no-delay Signed-off-by:Andi Kleen <ak@linux.intel.com> Acked-by:
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Jean Pihet authored
Use the info only if it has been found in the .debug_frame section of the ELF binary. Signed-off-by:
Jean Pihet <jean.pihet@linaro.org> Acked-by:
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Arnaldo Carvalho de Melo authored
Test one of the main kernel Makefile targets to generate a perf sources tarball suitable for build outside the full kernel sources. This is to test that the tools/perf/MANIFEST file lists all the files needed to be in such tarball, which sometimes gets broken when we move files around, like when we made some files that were in tools/perf/ available to other tools/ codebases by moving it to tools/include/, etc. Now everytime we use 'make -C tools/perf -f tests/make' this test will be performed, helping detect such problems earlier in the devel cycle. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gyivwbbu2j7c4j4pwpmttg2p@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
When 553873e1 renamed tools/lib/lk to tools/lib/api we forgot to do the switch in tools/perf/MANIFEST, breaking tarball building: [acme@ssdandy linux]$ make perf-targz-src-pkg TAR [acme@ssdandy linux]$ tar xf perf-3.13.0-rc4.tar.gz -C /tmp/tmp.OgdYyvp77p/ [acme@ssdandy linux]$ make -C /tmp/tmp.OgdYyvp77p/perf-3.13.0-rc4/tools/perf make: Entering directory `/tmp/tmp.OgdYyvp77p/perf-3.13.0-rc4/tools/perf' BUILD: Doing 'make -j8' parallel build FLEX util/pmu-flex.c CC util/evlist.o CC util/evsel.o util/evsel.c:12:28: fatal error: api/fs/debugfs.h: No such file or directory compilation terminated. In file included from util/cache.h:5:0, <SNIP> Fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1wwjs01rt3xbyhn6kjl2gfs9@git.kernel.orgSigned-off-by:
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Namhyung Kim authored
So that it can be shared with others like libtraceevent. Signed-off-by:
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Namhyung Kim authored
Signed-off-by:
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Namhyung Kim authored
So that it can be shared with others like libtraceevent. Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1389276059-8829-2-git-send-email-namhyung@kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
For the common evsel list traversal, so that it becomes more compact. Use the opportunity to start ditching the 'perf_' from 'perf_evlist__', as discussed, as the whole conversion touches a lot of places, lets do it piecemeal when we have the chance due to other work, like in this case. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qnkx7dzm2h6m6uptkfk03ni6@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Further uncluttering the main 'report' function by group related code in separate function. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-b594zsbwke8khir13kudwqmj@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To unclutter the main function. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-agvxwpazlucy6h5sejuttw9t@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Its too big, better have a separate function for it so that the main logic gets shorter/clearer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ahh6vfzyh8fsygjwrsbroeu0@git.kernel.orgSigned-off-by:
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Cody P Schafer authored
s/temr/term/ Signed-off-by:
Cody P Schafer <cody@linux.vnet.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1389199434-21761-1-git-send-email-cody@linux.vnet.ibm.comSigned-off-by:
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Andi Kleen authored
The --delay option was documented as --initial-delay in the manpage. Fix this. Signed-off-by:
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Jiri Olsa authored
Making perf_event__synthesize_mmap_events global, it will be used in following patch from test code. Signed-off-by:
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Jiri Olsa authored
The id_hdr_size field was not properly initialized, set it to zero, as the machine struct may have come from some non zeroing allocation routine or from the stack without any field being initialized. Signed-off-by:
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Jiri Olsa authored
Instead of explicitly adding same value into FEATURE_CHECK_(C|LD)FLAGS-all variables we can do that automatically. Signed-off-by:
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Arnaldo Carvalho de Melo authored
Initial struct stats: /* size: 368, cachelines: 6, members: 24 */ /* sum members: 353, holes: 3, sum holes: 15 */ /* last cacheline: 48 bytes */ After reorg: [acme@ssdandy linux]$ pahole -C trace ~/bin/trace | tail -4 /* size: 360, cachelines: 6, members: 24 */ /* padding: 7 */ /* last cacheline: 40 bytes */ }; [acme@ssdandy linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6jimc80yu89qkx6zb8465s6t@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Initial struct: [acme@ssdandy linux]$ pahole -C perf_session_env ~/bin/perf struct perf_session_env { char * hostname; /* 0 8 */ char * os_release; /* 8 8 */ char * version; /* 16 8 */ char * arch; /* 24 8 */ int nr_cpus_online; /* 32 4 */ int nr_cpus_avail; /* 36 4 */ char * cpu_desc; /* 40 8 */ char * cpuid; /* 48 8 */ long long unsigned int total_mem; /* 56 8 */ /* --- cacheline 1 boundary (64 bytes) --- */ int nr_cmdline; /* 64 4 */ /* XXX 4 bytes hole, try to pack */ char * cmdline; /* 72 8 */ int nr_sibling_cores; /* 80 4 */ /* XXX 4 bytes hole, try to pack */ char * sibling_cores; /* 88 8 */ int nr_sibling_threads; /* 96 4 */ /* XXX 4 bytes hole, try to pack */ char * sibling_threads; /* 104 8 */ int nr_numa_nodes; /* 112 4 */ /* XXX 4 bytes hole, try to pack */ char * numa_nodes; /* 120 8 */ /* --- cacheline 2 boundary (128 bytes) --- */ int nr_pmu_mappings; /* 128 4 */ /* XXX 4 bytes hole, try to pack */ char * pmu_mappings; /* 136 8 */ int nr_groups; /* 144 4 */ /* size: 152, cachelines: 3, members: 20 */ /* sum members: 128, holes: 5, sum holes: 20 */ /* padding: 4 */ /* last cacheline: 24 bytes */ }; [acme@ssdandy linux]$ [acme@ssdandy linux]$ pahole -C perf_session_env --reorganize --show_reorg_steps ~/bin/perf | grep ^/ | grep -v Final /* Moving 'nr_sibling_cores' from after 'cmdline' to after 'nr_cmdline' */ /* Moving 'nr_numa_nodes' from after 'sibling_threads' to after 'nr_sibling_threads' */ /* Moving 'nr_groups' from after 'pmu_mappings' to after 'nr_pmu_mappings' */ [acme@ssdandy linux]$ Final struct stats: [acme@ssdandy linux]$ pahole -C perf_session_env --reorganize --show_reorg_steps ~/bin/perf | tail -4 /* --- cacheline 2 boundary (128 bytes) --- */ /* size: 128, cachelines: 2, members: 20 */ }; /* saved 24 bytes and 1 cacheline! */ [acme@ssdandy linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3d9tshamloinzxcqeb7mtd1n@git.kernel.orgSigned-off-by: -
Jiri Olsa authored
Getting rid of following build output: $ make O=/tmp/build/perf -C tools/perf/ install-bin ... make[3]: Nothing to be done for `plugins'. make[2]: Nothing to be done for `plugins'. ... which triggers when traceevent library needs to be rebuilt, but we have plugins built already. Adding extra 'plugins' target with nop which is visible and triggers in both Makefile parts (for detached output directory (O=...) the traceevent Makefile spawns sub make for the build itself). Reported-by:
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Jiri Olsa authored
The tabbed indentation in non-commands statements could be sometimes considered as follow up for the rule command in the Makefile. This error is hard to find, so as a precaution replacing tabs with spaces for all non-commands statements. Signed-off-by:
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Jiri Olsa authored
Currently installation tests work only over x86_64, adding arch check to make it work over i386 as well. NOTE looks like x86 is the only arch running tests, we need some IS_(32/64) flag to make this generic. Signed-off-by:
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Jiri Olsa authored
I need to use arch related setup in the tests/make, so moving arch setup into Makefile.arch. Signed-off-by:
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Arnaldo Carvalho de Melo authored
That 'argc' argument _is_ being used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-t2gsxc15zulkorieg8zq996o@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
We need to call the evlist destructor when failing to parse events. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ilslu69s7v7bpvdgqtrlp8f5@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Removing further boilerplate after making sure perf_evlist__munmap can be called multiple times for the same evlist. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-o0luenuld4abupm4nmrgzm6f@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Since it is safe to call perf_evlist__close() multiple times, autoclose it and remove the calls to the close from existing tools, reducing the tooling boilerplate. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2kq9v7p1rude1tqxa0aue2tk@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Instead of requiring tools to do an extra destructor call just before calling perf_evlist__delete. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-0jd2ptzyikxb5wp7inzz2ah2@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To be consistent with other places, use just 'evlist' for the evsel list variable, and since we have it in 'struct record', use it directly from there. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-396bnfvmlxrsj3o2tk47b8t1@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
So that we have the boilerplate in the preparation method, instead of open coded in tools wanting the reporting when the exec fails. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-purbdzcphdveskh7wwmnm4t7@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
When a tool uses perf_evlist__start_workload and the supplied workload fails (e.g.: its binary wasn't found), perror was being used to print the error reason. This is undesirable, as the caller may be a GUI, when it wants to have total control of the error reporting process. So move to using sigaction(SA_SIGINFO) + siginfo_t->sa_value->sival_int to communicate to the caller the errno and let it print it using the UI of its choosing. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-epgcv7kjq8ll2udqfken92pz@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
When starting a workload 'stat' wasn't using prepare_workload evlist method's signal based exec() error reporting mechanism. Use it so that the we don't report 'not counted' counters. Before: [acme@zoo linux]$ perf stat dfadsfa dfadsfa: No such file or directory Performance counter stats for 'dfadsfa': <not counted> task-clock <not counted> context-switches <not counted> cpu-migrations <not counted> page-faults <not counted> cycles <not counted> stalled-cycles-frontend <not supported> stalled-cycles-backend <not counted> instructions <not counted> branches <not counted> branch-misses 0.001831462 seconds time elapsed [acme@zoo linux]$ After: [acme@zoo linux]$ perf stat dfadsfa dfadsfa: No such file or directory [acme@zoo linux]$ Reported-by:David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-5yui3bv7e3hitxucnjsn6z8q@git.kernel.orgSigned-off-by:
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- 12 Jan, 2014 1 commit
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf updates from Arnaldo Carvalho de Melo: User visible changes: Improvements: * Support showing source code, asking for variables to be collected at probe time and other 'perf probe' operations that use DWARF information. This supports only binaries with debugging information at this time, detached debuginfo (aka debuginfo packages) support should come in later patches. (Masami Hiramatsu) * Add a perf.data file header window in the 'perf report' TUI, associated with the 'i' hotkey, providing a counterpart to the --header option in the stdio UI. (Namhyung Kim) * Guest related improvements to 'perf kvm', including allowing to specify a directory with guest specific /proc information. (Dongsheng Yang) * Print session information only if --stdio is given (Namhyung Kim) Developer stuff: Fixes: * Get rid of a duplicate va_end() in error reporting (Namhyung Kim) * If a hist entry doesn't have symbol information, compare it with its address. Affects upcoming new feature (--cumulate) (Namhyung Kim) Improvements: * Make libtraceevent install target quieter (Jiri Olsa) * Make tests/make output more compact (Jiri Olsa) * Ignore generated files in feature-checks (Chunwei Chen) New APIs: * Introduce pevent_filter_strerror() in libtraceevent, similar in purpose to libc's strerror() function. (Namhyung Kim) Refactorings: * Use perf_data_file methods to write output file in 'record' and 'inject' (Jiri Olsa) * Use pr_*() functions where applicable in 'report' (Namhyumg Kim) * Add 'machine' 'addr_location' struct to have full picture (machine, thread, map, symbol, addr) for a (partially) resolved address, reducing function signatures (Arnaldo Carvalho de Melo) * Reduce code duplication in the histogram entry creation/insertion. (Arnaldo Carvalho de Melo) * Auto allocate annotation histogram data structures, (Arnaldo Carvalho de Melo) * No need to test against NULL before calling free, also set freed memory in struct pointers to NULL, to help fixing use after free bugs. (Arnaldo Carvalho de Melo> Signed-off-by:
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