Re: [GIT PULL 00/25] perf/core improvements and fixes

From: Ingo Molnar
Date: Wed Jun 21 2017 - 14:13:37 EST



* Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:

> Hi Ingo,
>
> Please consider pulling,
>
> - Arnaldo
>
> Test results at the end of this message, as usual.
>
> The following changes since commit 007b811b4041989ec2dc91b9614aa2c41332723e:
>
> Merge tag 'perf-core-for-mingo-4.13-20170719' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-06-20 10:49:08 +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-4.13-20170621
>
> for you to fetch changes up to 701516ae3dec801084bc913d21e03fce15c61a0b:
>
> perf script: Fix message because field list option is -F not -f (2017-06-21 11:35:53 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements ad fixes:
>
> New features:
>
> - Add support to measure SMI cost in 'perf stat' (Kan Liang)
>
> - Add support for unwinding callchains in powerpc with libdw (Paolo Bonzini)
>
> Fixes:
>
> - Fix message: cpu list option is -C not -c (Adrian Hunter)
>
> - Fix 'perf script' message: field list option is -F not -f (Adrian Hunter)
>
> - Intel PT fixes: (Adrian Hunter)
>
> o Fix missing stack clear
> o Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
> o Fix last_ip usage
> o Ensure never to set 'last_ip' when packet 'count' is zero
> o Clear FUP flag on error
> o Fix transactions_sample_type
>
> Infrastructure:
>
> - Intel PT cleanups/refactorings (Adrian Hunter)
>
> o Use FUP always when scanning for an IP
> o Add missing __fallthrough
> o Remove redundant initial_skip checks
> o Allow decoding with branch tracing disabled
> o Add default config for pass-through branch enable
> o Add documentation for new config terms
> o Add decoder support for ptwrite and power event packets
> o Add reserved byte to CBR packet payload
> o Add decoder support for CBR events
>
> - Move find_process() to the only place that uses it, skimming some
> more fat from util.[ch] (Arnaldo Carvalho de Melo)
>
> - Do parameter validation earlier on fetch_kernel_version() (Arnaldo Carvalho de Melo)
>
> - Remove unused _ALL_SOURCE define (Arnaldo Carvalho de Melo)
>
> - Add sysfs__write_int function (Kan Liang)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
>
> ----------------------------------------------------------------
> Adrian Hunter (19):
> perf intel-pt: Move decoder error setting into one condition
> perf intel-pt: Improve sample timestamp
> perf intel-pt: Fix missing stack clear
> perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
> perf intel-pt: Fix last_ip usage
> perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero
> perf intel-pt: Use FUP always when scanning for an IP
> perf intel-pt: Clear FUP flag on error
> perf intel-pt: Add missing __fallthrough
> perf intel-pt: Allow decoding with branch tracing disabled
> perf intel-pt: Add default config for pass-through branch enable
> perf intel-pt: Add documentation for new config terms
> perf intel-pt: Add decoder support for ptwrite and power event packets
> perf intel-pt: Add reserved byte to CBR packet payload
> perf intel-pt: Add decoder support for CBR events
> perf intel-pt: Remove redundant initial_skip checks
> perf intel-pt: Fix transactions_sample_type
> perf tools: Fix message because cpu list option is -C not -c
> perf script: Fix message because field list option is -F not -f
>
> Arnaldo Carvalho de Melo (3):
> perf evsel: Adopt find_process()
> perf tools: Do parameter validation earlier on fetch_kernel_version()
> perf tools: Remove unused _ALL_SOURCE define
>
> Kan Liang (2):
> tools lib api fs: Add sysfs__write_int function
> perf stat: Add support to measure SMI cost
>
> Paolo Bonzini (1):
> perf unwind: Support for powerpc
>
> tools/lib/api/fs/fs.c | 30 +++
> tools/lib/api/fs/fs.h | 4 +
> tools/perf/Documentation/intel-pt.txt | 36 +++
> tools/perf/Documentation/perf-stat.txt | 14 +
> tools/perf/Makefile.config | 2 +-
> tools/perf/arch/powerpc/util/Build | 2 +
> tools/perf/arch/powerpc/util/unwind-libdw.c | 73 ++++++
> tools/perf/arch/x86/util/intel-pt.c | 5 +
> tools/perf/builtin-script.c | 2 +-
> tools/perf/builtin-stat.c | 49 ++++
> tools/perf/util/evsel.c | 39 +++
> .../perf/util/intel-pt-decoder/intel-pt-decoder.c | 290 +++++++++++++++++++--
> .../perf/util/intel-pt-decoder/intel-pt-decoder.h | 13 +
> .../util/intel-pt-decoder/intel-pt-pkt-decoder.c | 110 +++++++-
> .../util/intel-pt-decoder/intel-pt-pkt-decoder.h | 7 +
> tools/perf/util/intel-pt.c | 23 +-
> tools/perf/util/session.c | 2 +-
> tools/perf/util/stat-shadow.c | 33 +++
> tools/perf/util/stat.c | 2 +
> tools/perf/util/stat.h | 2 +
> tools/perf/util/util.c | 52 +---
> tools/perf/util/util.h | 3 -
> 22 files changed, 710 insertions(+), 83 deletions(-)
> create mode 100644 tools/perf/arch/powerpc/util/unwind-libdw.c

Pulled, thanks a lot Arnaldo!

Ingo