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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-02-08 15:10:33 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-02-11 23:35:11 +1100 |
| commit | 6f76a01173ccaa363739f913394d4e138d92d718 (patch) | |
| tree | 95a1a11050edc174079c6ac160adb1baa5674b98 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | powerpc/32: Always save non volatile GPRs at syscall entry (diff) | |
| download | wireguard-linux-6f76a01173ccaa363739f913394d4e138d92d718.tar.xz wireguard-linux-6f76a01173ccaa363739f913394d4e138d92d718.zip | |
powerpc/syscall: implement system call entry/exit logic in C for PPC32
That's port of PPC64 syscall entry/exit logic in C to PPC32.
Performancewise on 8xx:
Before : 304 cycles on null_syscall
After : 348 cycles on null_syscall
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a93b08e1275e9d1f0b1c39043d1b827586b2b401.1612796617.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions