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| author | Mateusz Guzik <mjg@FreeBSD.org> | 2020-02-12 11:12:13 +0000 |
|---|---|---|
| committer | Mateusz Guzik <mjg@FreeBSD.org> | 2020-02-12 11:12:13 +0000 |
| commit | fb886947d97375ea9906fa1396f83573b6d0674b (patch) | |
| tree | bc47d67f771fbc25572b79c4d056fe3e80f9d2cc /include/pwd.h | |
| parent | 3acb6572fc0ef19119240a319873fa75fd597f28 (diff) | |
| download | src-fb886947d97375ea9906fa1396f83573b6d0674b.tar.gz src-fb886947d97375ea9906fa1396f83573b6d0674b.zip | |
amd64: store per-cpu allocations subtracted by __pcpu
This eliminates a runtime subtraction from counter_u64_add.
before:
mov 0x4f00ed(%rip),%rax # 0xffffffff80c01788 <numfullpathfail4>
sub 0x808ff6(%rip),%rax # 0xffffffff80f1a698 <__pcpu>
addq $0x1,%gs:(%rax)
after:
mov 0x4f02fd(%rip),%rax # 0xffffffff80c01788 <numfullpathfail4>
addq $0x1,%gs:(%rax)
Reviewed by: jeff
Differential Revision: https://reviews.freebsd.org/D23570
Notes
Notes:
svn path=/head/; revision=357805
Diffstat (limited to 'include/pwd.h')
0 files changed, 0 insertions, 0 deletions