talos-obmc-linux/tools/perf/util/header.c, branch dev-4.10

perf header: Display feature name on write failure

2016-10-24T14:07:34+00:00

Display name of feature instead of just the number during recording data. Before: failed to write feature 13 Now: failed to write feature HEADER_CPU_TOPOLOGY Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: David Ahern Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-k9d9trozi5kkx737cy8n5xh5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf header: Display missing features

2016-10-24T14:07:34+00:00

Display missing features in header info, like: $ perf report --header-only # ======== # captured on: Mon Oct 10 09:39:47 2016 ... # missing features: HEADER_TRACING_DATA HEADER_CPU_TOPOLOGY ... To help in diagnosing problems. Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: David Ahern Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-bh5gp84gobdmyl345dcp64se@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf report: Move captured info to generic header info

2016-10-24T14:07:33+00:00

It's not displayed in TUI now, putting it into generic part. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: David Ahern Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-5fk88kejqgi50ye7xdkhiloz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf header: Set nr_numa_nodes only when we parsed all the data

2016-10-13T14:12:29+00:00

Sukadev reported segfault on releasing perf env's numa data. It's due to nr_numa_nodes being set no matter if the numa data gets parsed properly. The perf_env__exit crash the on releasing non existed data. Setting nr_numa_nodes only when data are parsed out properly. Signed-off-by: Jiri Olsa Reported-by: Sukadev Bhattiprolu Cc: Adrian Hunter Cc: David Ahern Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-dt9c0zgkt4hybn2cr4xiawta@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Use __weak definition from linux/compiler.h

2016-08-23T18:37:33+00:00

Replace __attribute__((weak)) with __weak definition Signed-off-by: Rui Teng Cc: Alexander Shishkin Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1469671557-2256-2-git-send-email-rui.teng@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf header: Transform nodes string info to struct

2016-07-04T22:39:01+00:00

Storing NUMA info within struct numa_node instead of strings. This way it's usable in future patches. Also it turned out it's slightly less code involved than using strings. Signed-off-by: Jiri Olsa Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1467634583-29147-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Rename for_each() macros to for_each_entry()

2016-06-23T14:26:15+00:00

To match the semantics for list.h in the kernel, that are used to implement those macros. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Milian Wolff Cc: Namhyung Kim Cc: Taeung Song Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-qbcjlgj0ffxquxscahbpddi3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Use SBUILD_ID_SIZE where applicable

2016-05-11T16:06:06+00:00

Use the existing SBUILD_ID_SIZE macro instead of the equivalent BUILD_ID_SIZE * 2 + 1 expression for allocating a buffer for build-id strings. Signed-off-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Brendan Gregg Cc: Hemant Kumar Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20160511135159.23943.57120.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo

perf header: Make topology checkers to check return value of strbuf

2016-05-10T14:57:22+00:00

Make topology checkers to check the return value of strbuf APIs so that it can detect errors in it. Signed-off-by: Masami Hiramatsu Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20160510054735.6158.98650.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo

perf test: Remove 'core_id' check in topo test

2016-03-11T16:45:04+00:00

The topology test case of 'perf test' seems to be broken on my x86 system - due to the comparison of a "core-id" with # of CPUs online. There are 8 online CPUs: $ cat /sys/devices/system/cpu/online 0-7 but core-ids are not sequential and some core-ids exceed the number of online CPUs. $ cat /sys/devices/system/cpu/cpu?/topology/core_id 0 1 9 10 0 1 9 10 Looks like we can safely remove the check. Output before: $ perf --version perf version 4.4.rc1.g34258a $ perf test -v topo 36: Test topology in session : --- start --- test child forked, pid 5906 templ file: /tmp/perf-test-vCwWG3 core_id number is too big.You may need to upgrade the perf tool. test child interrupted ---- end ---- Test topology in session: FAILED! and after: $ perf test -v topo 36: Test topology in session : --- start --- test child forked, pid 6532 templ file: /tmp/perf-test-y10wFJ CPU 0, core 0, socket 0 CPU 1, core 1, socket 0 CPU 2, core 9, socket 0 CPU 3, core 10, socket 0 CPU 4, core 0, socket 1 CPU 5, core 1, socket 1 CPU 6, core 9, socket 1 CPU 7, core 10, socket 1 test child finished with 0 ---- end ---- Test topology in session: Ok Signed-off-by: Sukadev Bhattiprolu Cc: Jan Stancek Cc: Jiri Olsa Cc: Kan Liang Link: http://lkml.kernel.org/r/20151203233219.GA27696@us.ibm.com Signed-off-by: Arnaldo Carvalho de Melo