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Message-ID: <20160714065807.GA488@gmail.com> Date: Thu, 14 Jul 2016 08:58:07 +0200 From: Ingo Molnar <mingo@...nel.org> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: linux-kernel@...r.kernel.org, Adrian Hunter <adrian.hunter@...el.com>, Alexei Starovoitov <ast@...nel.org>, Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>, Brendan Gregg <brendan.d.gregg@...il.com>, David Ahern <dsahern@...il.com>, Hemant Kumar <hemant@...ux.vnet.ibm.com>, Jiri Olsa <jolsa@...nel.org>, Josh Poimboeuf <jpoimboe@...hat.com>, Masami Hiramatsu <mhiramat@...nel.org>, Namhyung Kim <namhyung@...nel.org>, Peter Zijlstra <peterz@...radead.org>, pi3orama@....com, Wang Nan <wangnan0@...wei.com>, Zefan Li <lizefan@...wei.com>, Arnaldo Carvalho de Melo <acme@...hat.com> Subject: Re: [GIT PULL 00/19] perf/core improvements and fixes * Arnaldo Carvalho de Melo <acme@...nel.org> wrote: > Hi Ingo, > > Please consider pulling, > > I've added building objtool to most of the containers in my build test setup: > > [root@...et ~]# 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@...et ~]# > > - 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@...hat.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 Pulled, thanks a lot Arnaldo! Ingo
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