Mercurial > hg > nginx
annotate src/os/unix/ngx_sunpro_amd64.il @ 4864:cb2304585a8b
Added clearing of cpu_affinity after process spawn.
This fixes unwanted/incorrect cpu_affinity use on dead worker processes
respawn. While this is not ideal, it's expected to be better when previous
situation where multiple processes were spawn with identical CPU affinity
set.
Reported by Charles Chen.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 26 Sep 2012 16:25:12 +0000 |
parents | d620f497c50f |
children | 2cd019520210 |
rev | line source |
---|---|
561 | 1 / |
2 / Copyright (C) Igor Sysoev | |
4412 | 3 / Copyright (C) Nginx, Inc. |
561 | 4 / |
5 | |
6 / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock, | |
7 / ngx_atomic_uint_t old, ngx_atomic_uint_t set); | |
8 / | |
9 / the arguments are passed in %rdi, %rsi, %rdx | |
10 / the result is returned in the %rax | |
11 | |
12 .inline ngx_atomic_cmp_set,0 | |
13 movq %rsi, %rax | |
14 lock | |
15 cmpxchgq %rdx, (%rdi) | |
16 setz %al | |
17 movzbq %al, %rax | |
18 .end | |
19 | |
20 | |
21 / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value, | |
22 / ngx_atomic_int_t add); | |
23 / | |
24 / the arguments are passed in %rdi, %rsi | |
25 / the result is returned in the %rax | |
26 | |
27 .inline ngx_atomic_fetch_add,0 | |
28 movq %rsi, %rax | |
29 lock | |
30 xaddq %rax, (%rdi) | |
31 .end | |
1309 | 32 |
33 | |
34 / ngx_cpu_pause() | |
3479
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
35 / |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
36 / the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
37 / capability added by linker because Solaris/amd64 does not know about it: |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
38 / |
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
39 / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ] |
1309 | 40 |
41 .inline ngx_cpu_pause,0 | |
3479
bfd1912e55a9
use "rep; nop" instead of "pause" on Solaris/amd64
Igor Sysoev <igor@sysoev.ru>
parents:
1309
diff
changeset
|
42 rep; nop |
1309 | 43 .end |