[GIT PULL 00/10] perf/core improvements and fixes

From: Arnaldo Carvalho de Melo
Date: Wed Dec 07 2016 - 11:54:33 EST

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Hi Ingo,

Please consider pulling, should get linux-next free of perf build fixdep
related race conditions on high core count machines,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 34c4a42791bbc455e65a15d12dcd0b6b3c52ad13:

Merge tag 'perf-core-for-mingo-20161205' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-12-06 09:14:56 +0100)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20161207

for you to fetch changes up to 108a7c103b761309ccbd997002e8428808cf1e04:

perf tools: Explicitly document that --children is enabled by default (2016-12-07 12:00:35 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

Improvements:

- Improve error message when analyzing file with required events in
'perf sched timehist' (David Ahern)

Fixes:

- Force fixdep compilation to be done at the start of the build, fixing
some build race conditions in high core count machines (Jiri Olsa)

- Fix handling a zero sample->tid in 'perf sched timehist', as
sometimes that isn't the idle thread (Namhyung Kim)

Infrastructure:

- Check minimal accepted LLVM version in its feature check, 3.9 at this
time (Wang Nan)

Documentation:

- Explicitly document that --children is enabled by default (Yannick Brosseau)

Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

----------------------------------------------------------------
David Ahern (1):
perf sched timehist: Improve error message when analyzing wrong file

Jiri Olsa (3):
perf tools: Move PERF-VERSION-FILE target into rules area
perf tools: Force fixdep compilation at the start of the build
perf tools: Move perf build related variables under non fixdep leg

Namhyung Kim (4):
perf sched: Cleanup option processing
perf callchain: Introduce callchain_cursor__copy()
perf sched timehist: Handle zero sample->tid properly
perf sched timehist: Cleanup idle_max_cpu handling

Wang Nan (1):
perf build: Check LLVM version in feature check

Yannick Brosseau (1):
perf tools: Explicitly document that --children is enabled by default

tools/build/feature/Makefile | 8 +++-
tools/build/feature/test-llvm-version.cpp | 11 +++++
tools/build/feature/test-llvm.cpp | 5 +++
tools/perf/Documentation/perf-report.txt | 3 +-
tools/perf/Documentation/perf-top.txt | 1 +
tools/perf/Makefile.config | 8 +++-
tools/perf/Makefile.perf | 68 +++++++++++++++++++++----------
tools/perf/builtin-sched.c | 26 ++++++------
tools/perf/util/callchain.c | 27 ++++++++++++
tools/perf/util/callchain.h | 3 ++
10 files changed, 122 insertions(+), 38 deletions(-)
create mode 100644 tools/build/feature/test-llvm-version.cpp

# uname -a
Linux jouet 4.8.8-300.fc25.x86_64 #1 SMP Tue Nov 15 18:10:06 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
# perf test
1: vmlinux symtab matches kallsyms : Ok
2: Detect openat syscall event : Ok
3: Detect openat syscall event on all cpus : Ok
4: Read samples using the mmap interface : Ok
5: Parse event definition strings : Ok
6: PERF_RECORD_* events & perf_sample fields : Ok
7: Parse perf pmu format : Ok
8: DSO data read : Ok
9: DSO data cache : Ok
10: DSO data reopen : Ok
11: Roundtrip evsel->name : Ok
12: Parse sched tracepoints fields : Ok
13: syscalls:sys_enter_openat event fields : Ok
14: Setup struct perf_event_attr : Ok
15: Match and link multiple hists : Ok
16: 'import perf' in python : Ok
17: Breakpoint overflow signal handler : Ok
18: Breakpoint overflow sampling : Ok
19: Number of exit events of a simple workload : Ok
20: Software clock events period values : Ok
21: Object code reading : Ok
22: Sample parsing : Ok
23: Use a dummy software event to keep tracking: Ok
24: Parse with no sample_id_all bit set : Ok
25: Filter hist entries : Ok
26: Lookup mmap thread : Ok
27: Share thread mg : Ok
28: Sort output of hist entries : Ok
29: Cumulate child hist entries : Ok
30: Track with sched_switch : Ok
31: Filter fds with revents mask in a fdarray : Ok
32: Add fd to a fdarray, making it autogrow : Ok
33: kmod_path__parse : Ok
34: Thread map : Ok
35: LLVM search and compile :
35.1: Basic BPF llvm compile : Ok
35.2: kbuild searching : Ok
35.3: Compile source for BPF prologue generation: Ok
35.4: Compile source for BPF relocation : Ok
36: Session topology : Ok
37: BPF filter :
37.1: Basic BPF filtering : Ok
37.2: BPF prologue generation : Ok
37.3: BPF relocation checker : Ok
38: Synthesize thread map : Ok
39: Synthesize cpu map : Ok
40: Synthesize stat config : Ok
41: Synthesize stat : Ok
42: Synthesize stat round : Ok
43: Synthesize attr update : Ok
44: Event times : Ok
45: Read backward ring buffer : Ok
46: Print cpu map : Ok
47: Probe SDT events : Ok
48: is_printable_array : Ok
49: Print bitmap : Ok
50: perf hooks : Ok
51: builtin clang support :
51.1: builtin clang compile C source to IR : Ok
51.2: builtin clang compile C source to ELF object: Ok
52: x86 rdpmc : Ok
53: Convert perf time to TSC : Ok
54: DWARF unwind : Ok
55: x86 instruction decoder - new instructions : Ok
56: Intel cqm nmi context read : Skip
#
# uname -a
Linux zoo 4.7.3-200.fc24.x86_64 #1 SMP Wed Sep 7 17:31:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
# time dm
1 alpine:3.4: Ok
2 android-ndk:r12b-arm: Ok
3 archlinux:latest: Ok
4 centos:5: Ok
5 centos:6: Ok
6 centos:7: Ok
7 debian:7: Ok
8 debian:8: Ok
9 debian:experimental: Ok
10 fedora:20: Ok
11 fedora:21: Ok
12 fedora:22: Ok
13 fedora:23: Ok
14 fedora:24: Ok
15 fedora:24-x-ARC-uClibc: Ok
16 fedora:rawhide: Ok
17 mageia:5: Ok
18 opensuse:13.2: Ok
19 opensuse:42.1: Ok
20 opensuse:tumbleweed: Ok
21 ubuntu:12.04.5: Ok
22 ubuntu:14.04: Ok
23 ubuntu:14.04.4: Ok
24 ubuntu:15.10: Ok
25 ubuntu:16.04: Ok
26 ubuntu:16.04-x-arm: Ok
27 ubuntu:16.04-x-arm64: Ok
28 ubuntu:16.04-x-powerpc: Ok
29 ubuntu:16.04-x-powerpc64: Ok
30 ubuntu:16.04-x-powerpc64el: Ok
31 ubuntu:16.04-x-s390: Ok
32 ubuntu:16.10: Ok
#
$ make -C tools/perf build-test
make: Entering directory '/home/acme/git/linux/tools/perf'
- tarpkg: ./tests/perf-targz-src-pkg .
make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
make_help_O: make help
make_install_prefix_slash_O: make install prefix=/tmp/krava/
make_install_O: make install
make_static_O: make LDFLAGS=-static
make_no_libbionic_O: make NO_LIBBIONIC=1
make_no_backtrace_O: make NO_BACKTRACE=1
make_no_libunwind_O: make NO_LIBUNWIND=1
make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
make_doc_O: make doc
make_no_libbpf_O: make NO_LIBBPF=1
make_util_map_o_O: make util/map.o
make_install_bin_O: make install-bin
make_no_auxtrace_O: make NO_AUXTRACE=1
make_with_babeltrace_O: make LIBBABELTRACE=1
make_with_clangllvm_O: make LIBCLANGLLVM=1
make_debug_O: make DEBUG=1
make_no_libelf_O: make NO_LIBELF=1
make_clean_all_O: make clean all
make_no_libperl_O: make NO_LIBPERL=1
make_no_libaudit_O: make NO_LIBAUDIT=1
make_no_slang_O: make NO_SLANG=1
make_util_pmu_bison_o_O: make util/pmu-bison.o
make_no_gtk2_O: make NO_GTK2=1
make_pure_O: make
make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
make_install_prefix_O: make install prefix=/tmp/krava
make_tags_O: make tags
make_no_demangle_O: make NO_DEMANGLE=1
make_perf_o_O: make perf.o
make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
make_no_libnuma_O: make NO_LIBNUMA=1
make_no_libpython_O: make NO_LIBPYTHON=1
make_no_newt_O: make NO_NEWT=1
OK
make: Leaving directory '/home/acme/git/linux/tools/perf'
$

Next message: Arnaldo Carvalho de Melo: "[PATCH 09/10] perf sched timehist: Cleanup idle_max_cpu handling"
Previous message: Heiko Stuebner: "Re: [PATCH] arm: dts: rockchip: add qos node for rk3288"
Next in thread: Arnaldo Carvalho de Melo: "[PATCH 03/10] perf tools: Force fixdep compilation at the start of the build"
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