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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-12-02 07:57:28 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-01-23 21:31:15 +1100 |
| commit | 654abc69ef2e69712e6d4e8a6cb9292b97a4aa39 (patch) | |
| tree | 53db4020b085ae65ff852b613d5e825f3ca39f18 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | powerpc/32: Add VDSO version of getcpu on non SMP (diff) | |
| download | linux-654abc69ef2e69712e6d4e8a6cb9292b97a4aa39.tar.gz linux-654abc69ef2e69712e6d4e8a6cb9292b97a4aa39.zip | |
powerpc/vdso32: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE
This is copied and adapted from commit 5c929885f1bb ("powerpc/vdso64:
Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE")
from Santosh Sivaraj <santosh@fossix.org>
Benchmark from vdsotest-all:
clock-gettime-realtime: syscall: 3601 nsec/call
clock-gettime-realtime: libc: 1072 nsec/call
clock-gettime-realtime: vdso: 931 nsec/call
clock-gettime-monotonic: syscall: 4034 nsec/call
clock-gettime-monotonic: libc: 1213 nsec/call
clock-gettime-monotonic: vdso: 1076 nsec/call
clock-gettime-realtime-coarse: syscall: 2722 nsec/call
clock-gettime-realtime-coarse: libc: 805 nsec/call
clock-gettime-realtime-coarse: vdso: 668 nsec/call
clock-gettime-monotonic-coarse: syscall: 2949 nsec/call
clock-gettime-monotonic-coarse: libc: 882 nsec/call
clock-gettime-monotonic-coarse: vdso: 745 nsec/call
Additional test passed with:
vdsotest -d 30 clock-gettime-monotonic-coarse verify
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://github.com/linuxppc/issues/issues/41
Link: https://lore.kernel.org/r/d1d24a376e396540194eeb85a2efe481e92ade24.1575273217.git.christophe.leroy@c-s.fr
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions