linux/tools/lib
Ingo Molnar 62e1c09418 perf/core improvements and fixes:
perf.data:
 
   Alexey Budankov:
 
   - Streaming compression of perf ring buffer into PERF_RECORD_COMPRESSED
     user space records, resulting in ~3-5x perf.data file size reduction
     on variety of tested workloads what saves storage space on larger
     server systems where perf.data size can easily reach several tens or
     even hundreds of GiBs, especially when profiling with DWARF-based
     stacks and tracing of context switches.
 
 perf record:
 
   Arnaldo Carvalho de Melo
 
   - Improve -user-regs/intr-regs suggestions to overcome errors.
 
 perf annotate:
 
   Jin Yao:
 
   - Remove hist__account_cycles() from callback, speeding up branch processing
     (perf record -b).
 
 perf stat:
 
   - Add a 'percore' event qualifier, e.g.: -e cpu/event=0,umask=0x3,percore=1/,
     that sums up the event counts for both hardware threads in a core.
 
     We can already do this with --per-core, but it's often useful to do
     this together with other metrics that are collected per hardware thread.
 
     I.e. now its possible to do this per-event, and have it mixed with other
     events not aggregated by core.
 
 core libraries:
 
   Donald Yandt:
 
   - Check for errors when doing fgets(/proc/version).
 
   Jiri Olsa:
 
   - Speed up report for perf compiled with linbunwind.
 
 tools headers:
 
   Arnaldo Carvalho de Melo
 
   - Update memcpy_64.S, x86's kvm.h and pt_regs.h.
 
 arm64:
 
   Florian Fainelli:
 
   - Map Brahma-B53 CPUID to cortex-a53 events.
 
   - Add Cortex-A57 and Cortex-A72 events.
 
 csky:
 
   Mao Han:
 
   - Add DWARF register mappings for libdw, allowing --call-graph=dwarf to work
     on the C-SKY arch.
 
 x86:
 
   Andi Kleen/Kan Liang:
 
   - Add support for recording and printing XMM registers, available, for
     instance, on Icelake.
 
   Kan Liang:
 
   - Add uncore_upi (Intel's "Ultra Path Interconnect" events) JSON support.
     UPI replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP.
 
 Intel PT:
 
   Adrian Hunter
 
   . Fix instructions sampling rate.
 
   . Timestamp fixes.
 
   . Improve exported-sql-viewer GUI, allowing, for instance, to copy'n'paste
     the trees, useful for e-mailing.
 
 Documentation:
 
   Thomas Richter:
 
   - Add description for 'perf --debug stderr=1', which redirects stderr to stdout.
 
 libtraceevent:
 
   Tzvetomir Stoyanov:
 
   - Add man pages for the various APIs.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.2-20190517' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf.data:

  Alexey Budankov:

  - Streaming compression of perf ring buffer into PERF_RECORD_COMPRESSED
    user space records, resulting in ~3-5x perf.data file size reduction
    on variety of tested workloads what saves storage space on larger
    server systems where perf.data size can easily reach several tens or
    even hundreds of GiBs, especially when profiling with DWARF-based
    stacks and tracing of context switches.

perf record:

  Arnaldo Carvalho de Melo

  - Improve -user-regs/intr-regs suggestions to overcome errors.

perf annotate:

  Jin Yao:

  - Remove hist__account_cycles() from callback, speeding up branch processing
    (perf record -b).

perf stat:

  - Add a 'percore' event qualifier, e.g.: -e cpu/event=0,umask=0x3,percore=1/,
    that sums up the event counts for both hardware threads in a core.

    We can already do this with --per-core, but it's often useful to do
    this together with other metrics that are collected per hardware thread.

    I.e. now its possible to do this per-event, and have it mixed with other
    events not aggregated by core.

core libraries:

  Donald Yandt:

  - Check for errors when doing fgets(/proc/version).

  Jiri Olsa:

  - Speed up report for perf compiled with linbunwind.

tools headers:

  Arnaldo Carvalho de Melo

  - Update memcpy_64.S, x86's kvm.h and pt_regs.h.

arm64:

  Florian Fainelli:

  - Map Brahma-B53 CPUID to cortex-a53 events.

  - Add Cortex-A57 and Cortex-A72 events.

csky:

  Mao Han:

  - Add DWARF register mappings for libdw, allowing --call-graph=dwarf to work
    on the C-SKY arch.

x86:

  Andi Kleen/Kan Liang:

  - Add support for recording and printing XMM registers, available, for
    instance, on Icelake.

  Kan Liang:

  - Add uncore_upi (Intel's "Ultra Path Interconnect" events) JSON support.
    UPI replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP.

Intel PT:

  Adrian Hunter

  . Fix instructions sampling rate.

  . Timestamp fixes.

  . Improve exported-sql-viewer GUI, allowing, for instance, to copy'n'paste
    the trees, useful for e-mailing.

Documentation:

  Thomas Richter:

  - Add description for 'perf --debug stderr=1', which redirects stderr to stdout.

libtraceevent:

  Tzvetomir Stoyanov:

  - Add man pages for the various APIs.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-18 10:24:43 +02:00
..
api perf tools: Fix tracing_path_mount proper path 2018-10-16 12:27:46 -03:00
bpf libbpf: detect supported kernel BTF features and sanitize BTF 2019-05-13 01:31:20 +02:00
lockdep lockdep/lib/tests: Test dynamic key registration 2019-02-28 07:55:48 +01:00
subcmd tools lib subcmd: Don't add the kernel sources to the include path 2018-12-18 12:23:56 -03:00
symbol tools lib symbols: Introduce kallsyms__is_function() 2018-04-26 13:47:14 -03:00
traceevent tools lib traceevent: Man pages for trace sequences APIs 2019-05-15 16:36:48 -03:00
bitmap.c
find_bit.c lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
hweight.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rbtree.c tools: Update rbtree implementation 2019-01-25 15:12:09 +01:00
str_error_r.c objtool, perf: Fix GCC 8 -Wrestrict error 2018-03-19 13:51:54 -03:00
string.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vsprintf.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00