uname -a
Linux corp 2.6.18-8.1.8.el5 #1 SMP Tue Jul 10 06:50:22 EDT 2007 i686 i686 i386
GNU/Linux
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
Server Software: nginx/0.5.33
Server Hostname: 127.0.0.1
Server Port: 80
Document Path: /
Document Length: 372 bytes
Concurrency Level: 1
Time taken for tests: 21.830205 seconds
Complete requests: 100000
Failed requests: 0
Write errors: 0
Total transferred: 49400000 bytes
HTML transferred: 37200000 bytes
Requests per second: 4580.81 [#/sec] (mean)
Time per request: 0.218 [ms] (mean)
Time per request: 0.218 [ms] (mean, across all concurrent requests)
Transfer rate: 2209.87 [Kbytes/sec] received
net.ipv4.tcp_tw_reuse = 0
net.ipv4.tcp_tw_recycle = 0
Server Software: nginx/0.5.33
Server Hostname: 127.0.0.1
Server Port: 80
Document Path: /
Document Length: 372 bytes
Concurrency Level: 1
Time taken for tests: 21.787039 seconds
Complete requests: 100000
Failed requests: 0
Write errors: 0
Total transferred: 49400000 bytes
HTML transferred: 37200000 bytes
Requests per second: 4589.88 [#/sec] (mean)
Time per request: 0.218 [ms] (mean)
Time per request: 0.218 [ms] (mean, across all concurrent requests)
Transfer rate: 2214.25 [Kbytes/sec] received
Есть у меня мнение, что для всего, что идёт через lo linux использует tw_reuse.
16.11.07, 21:56, Igor Sysoev (is@xxxxxxxxxxxxx):
> On Fri, Nov 16, 2007 at 07:39:57PM +0100, Roxis wrote:
> > On Friday 16 November 2007, Igor Sysoev wrote:
> > > Интересно, как выглядит тест
> > >
> > > ab -n 100000
> > >
> > > на машине, где выключены обе настройке, особенно tcp_tw_reuse ?
> >
> > ab -n 1000000
> >
> > # 2.6.18.8
> > Time taken for tests: 72.432 seconds
> > Complete requests: 1000000
> > Total transferred: 105000000 bytes
> > Requests per second: 13806.05 [#/sec] (mean)
> > Time per request: 0.07 [ms] (mean)
> > Transfer rate: 1449.64 [Kbytes/sec] received
> >
> > # 2.6.23.3
> > Time taken for tests: 68.602 seconds
> > Complete requests: 1000000
> > Total transferred: 105000000 bytes
> > Requests per second: 14576.83 [#/sec] (mean)
> > Time per request: 0.07 [ms] (mean)
> > Transfer rate: 1530.57 [Kbytes/sec] received
> Вполне себе reuse'аются. Тогда я не понимаю, что именно разрешает
> tcp_tw_reuse.
