Messages in this thread | | | From | Arnaldo Carvalho de Melo <> | Subject | [GIT PULL 00/19] perf/core improvements and fixes | Date | Wed, 13 Jul 2016 23:20:36 -0300 |
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Hi Ingo,
Please consider pulling,
I've added building objtool to most of the containers in my build test setup:
[root@jouet ~]# perf stat dm alpine:3.4: Ok centos:5: Ok centos:6: Ok centos:7: Ok debian:7: Ok debian:8: Ok debian:experimental: Ok fedora:21: Ok fedora:22: Ok fedora:23: Ok fedora:24: Ok fedora:rawhide: Ok mageia:5: Ok opensuse:13.2: Ok opensuse:42.1: Ok ubuntu:12.04.5: Ok ubuntu:14.04.4: Ok ubuntu:15.10: Ok ubuntu:16.04: Ok
Performance counter stats for 'dm':
2601.121782 task-clock (msec) # 0.002 CPUs utilized 86,368 context-switches # 0.033 M/sec 5,740 cpu-migrations # 0.002 M/sec 53,962 page-faults # 0.021 M/sec 7,217,605,183 cycles # 2.775 GHz 6,534,540,119 instructions # 0.91 insn per cycle 1,408,715,184 branches # 541.580 M/sec 18,523,459 branch-misses # 1.31% of all branches
1541.746171526 seconds time elapsed
[root@jouet ~]#
- Arnaldo
The following changes since commit 7b39cafb7aa68ef8e32a9f51fbe737d96084ca74:
tools: Work around BITS_PER_LONG related build failure in objtool (2016-07-13 09:37:43 +0200)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160713
for you to fetch changes up to 8e5dc848356ecf6ea8d27d641c4d7ad8d42fe92b:
perf test: Add a test case for SDT event (2016-07-13 23:09:10 -0300)
---------------------------------------------------------------- perf/core improvements and fixes:
User visible:
- Finish merging initial SDT (Statically Defined Traces) support, see cset comments for details about how it all works (Masami Hiramatsu)
- Support attaching eBPF programs to tracepoints (Wang Nan)
Infrastructure:
- Fix up BITS_PER_LONG setting (Arnaldo Carvalho de Melo)
- Add fallback from ELF_C_READ_MMAP to ELF_C_READ in objtool, fixing the build in libelf implementations lacking that elf_begin() cmd, such as Alpine Linux's (Arnaldo Carvalho de Melo)
- Avoid checking code drift on busybox's diff in objtool (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---------------------------------------------------------------- Arnaldo Carvalho de Melo (3): tools: Fix up BITS_PER_LONG setting objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ objtool: Avoid checking code drift on busybox's diff
Masami Hiramatsu (11): perf probe: Fix to show correct error message for $vars and $params perf probe: Accept %sdt and %cached event name perf probe: Make --list show only available cached events perf probe-cache: Add for_each_probe_cache_entry() wrapper perf probe: Allow wildcard for cached events perf probe: Search SDT/cached event from all probe caches perf list: Show SDT and pre-cached events perf probe: Support @BUILDID or @FILE suffix for SDT events perf probe: Support a special SDT probe format perf build: Add sdt feature detection perf test: Add a test case for SDT event
Wang Nan (5): tools lib bpf: New API to adjust type of a BPF program tools lib bpf: Report error when kernel doesn't support program type perf event parser: Add const qualifier to evt_name and sys_name perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event() perf bpf: Support BPF program attach to tracepoints
tools/build/Makefile.feature | 3 +- tools/build/feature/Makefile | 6 +- tools/build/feature/test-all.c | 5 + tools/build/feature/test-sdt.c | 7 + tools/include/asm-generic/bitsperlong.h | 24 ++- tools/lib/bpf/libbpf.c | 80 +++++++-- tools/lib/bpf/libbpf.h | 10 ++ tools/objtool/Makefile | 5 +- tools/objtool/elf.c | 7 + tools/perf/Documentation/perf-probe.txt | 11 +- tools/perf/Makefile.perf | 3 + tools/perf/builtin-list.c | 6 +- tools/perf/builtin-probe.c | 2 +- tools/perf/config/Makefile | 10 ++ tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 4 + tools/perf/tests/make | 3 +- tools/perf/tests/sdt.c | 115 ++++++++++++ tools/perf/tests/tests.h | 1 + tools/perf/util/bpf-loader.c | 73 +++++++- tools/perf/util/bpf-loader.h | 12 +- tools/perf/util/build-id.c | 76 +++++++- tools/perf/util/build-id.h | 3 +- tools/perf/util/parse-events.c | 110 ++++++++++-- tools/perf/util/parse-events.h | 4 +- tools/perf/util/probe-event.c | 309 +++++++++++++++++++++++++++----- tools/perf/util/probe-event.h | 1 + tools/perf/util/probe-file.c | 57 ++++-- tools/perf/util/probe-file.h | 14 ++ 29 files changed, 850 insertions(+), 112 deletions(-) create mode 100644 tools/build/feature/test-sdt.c create mode 100644 tools/perf/tests/sdt.c
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