Mercurial > hg > nginx
annotate src/os/unix/ngx_setaffinity.c @ 7948:a2613fc1bce5
Fixed sendfile() limit handling on Linux.
On Linux starting with 2.6.16, sendfile() silently limits all operations
to MAX_RW_COUNT, defined as (INT_MAX & PAGE_MASK). This incorrectly
triggered the interrupt check, and resulted in 0-sized writev() on the
next loop iteration.
Fix is to make sure the limit is always checked, so we will return from
the loop if the limit is already reached even if number of bytes sent is
not exactly equal to the number of bytes we've tried to send.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 29 Oct 2021 20:21:51 +0300 |
parents | 7296b38f6416 |
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4549
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 |
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10 |
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11 #if (NGX_HAVE_CPUSET_SETAFFINITY) |
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12 |
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13 void |
6402
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
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14 ngx_setaffinity(ngx_cpuset_t *cpu_affinity, ngx_log_t *log) |
4549
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15 { |
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16 ngx_uint_t i; |
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17 |
6402
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18 for (i = 0; i < CPU_SETSIZE; i++) { |
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19 if (CPU_ISSET(i, cpu_affinity)) { |
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20 ngx_log_error(NGX_LOG_NOTICE, log, 0, |
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21 "cpuset_setaffinity(): using cpu #%ui", i); |
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22 } |
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23 } |
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24 |
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25 if (cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, |
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26 sizeof(cpuset_t), cpu_affinity) == -1) |
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27 { |
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28 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
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29 "cpuset_setaffinity() failed"); |
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30 } |
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31 } |
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32 |
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33 #elif (NGX_HAVE_SCHED_SETAFFINITY) |
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34 |
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35 void |
6402
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Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
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36 ngx_setaffinity(ngx_cpuset_t *cpu_affinity, ngx_log_t *log) |
4549
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Ruslan Ermilov <ru@nginx.com>
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37 { |
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Ruslan Ermilov <ru@nginx.com>
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38 ngx_uint_t i; |
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39 |
6402
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
diff
changeset
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40 for (i = 0; i < CPU_SETSIZE; i++) { |
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
diff
changeset
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41 if (CPU_ISSET(i, cpu_affinity)) { |
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
diff
changeset
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42 ngx_log_error(NGX_LOG_NOTICE, log, 0, |
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
diff
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43 "sched_setaffinity(): using cpu #%ui", i); |
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
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44 } |
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
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45 } |
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
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parents:
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46 |
6402
7296b38f6416
Core: added support for more than 64 CPUs in worker_cpu_affinity.
Vladimir Homutov <vl@nginx.com>
parents:
4549
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47 if (sched_setaffinity(0, sizeof(cpu_set_t), cpu_affinity) == -1) { |
4549
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worker_cpu_affinity: cleaned up Linux implementation, added FreeBSD support.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
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48 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
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49 "sched_setaffinity() failed"); |
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50 } |
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51 } |
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52 |
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53 #endif |