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5320266124
User visible:
- Add ability to specify to select which registers to record,
to reduce the size of perf.data files, and also allow printing
the registers in 'perf script': (Stephane Eranian)
# perf record --intr-regs=AX,SP usleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.016 MB perf.data (8 samples) ]
# perf script -F ip,sym,iregs | tail -5
ffffffff8105f42a native_write_msr_safe AX:0xf SP:0xffff8802629c3c00
ffffffff8105f42a native_write_msr_safe AX:0xf SP:0xffff8802629c3c00
ffffffff81761ac0 _raw_spin_lock AX:0xffff8801bfcf8020 SP:0xffff8802629c3ce8
ffffffff81202bf8 __vma_adjust_trans_huge AX:0x7ffc75200000 SP:0xffff8802629c3b30
ffffffff8122b089 dput AX:0x101 SP:0xffff8802629c3c78
#
Infrastructure:
- Open event on evsel cpus and threads (Kan Liang)
- New bpf API to get name from a BPF object (Wang Nan)
Build fixes:
- Fix build on powerpc broken by pt/bts (Adrian Hunter)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
- Add ability to specify to select which registers to record,
to reduce the size of perf.data files, and also allow printing
the registers in 'perf script': (Stephane Eranian)
# perf record --intr-regs=AX,SP usleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.016 MB perf.data (8 samples) ]
# perf script -F ip,sym,iregs | tail -5
ffffffff8105f42a native_write_msr_safe AX:0xf SP:0xffff8802629c3c00
ffffffff8105f42a native_write_msr_safe AX:0xf SP:0xffff8802629c3c00
ffffffff81761ac0 _raw_spin_lock AX:0xffff8801bfcf8020 SP:0xffff8802629c3ce8
ffffffff81202bf8 __vma_adjust_trans_huge AX:0x7ffc75200000 SP:0xffff8802629c3b30
ffffffff8122b089 dput AX:0x101 SP:0xffff8802629c3c78
#
Infrastructure changes:
- Open event on evsel cpus and threads. (Kan Liang)
- Add new bpf API to get name from a BPF object. (Wang Nan)
Build fixes:
- Fix build on powerpc broken by pt/bts. (Adrian Hunter)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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