[Web] 如何配置高并发linux服务器 [复制链接]

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11楼 [报告]

发表于 2014-03-21 11:30 |只看该作者

本帖最后由 tomtesla 于 2014-03-21 11:33 编辑

ab -c 100 -n 100000 http://xxxx/  局域网ip

......
Server Software:       nginx/1.4.4
Server Hostname:       lb001.site4test.com
Server Port:          80

Document Path:       /
Document Length:       612 bytes

Concurrency Level:    100
Time taken for tests: 8.242 seconds
Complete requests:    100000
Failed requests:       0
Write errors:          0
Total transferred:    86700000 bytes
HTML transferred:    61200000 bytes
Requests per second: 12132.78 [#/sec] (mean)
Time per request:    8.242 [ms] (mean)
Time per request:    0.082 [ms] (mean, across all concurrent requests)
Transfer rate:       10272.58 [Kbytes/sec] received
........

压测页面  helloworld内容：
root@test:~# cat index.html
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
      width: 35em;
      margin: 0 auto;
      font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

被压测主机 cpu 单核vps：
[root@lb001 nginx]# cat  /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 1.0
stepping : 3
cpu MHz : 2299.998
cache size : 4096 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm up unfair_spinlock pni vmx cx16 popcnt hypervisor lahf_lm
bogomips : 4599.99
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

内存512M

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action08

巨富豪门

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12楼 [报告]

发表于 2014-03-21 11:32 |只看该作者

本帖最后由 action08 于 2014-03-21 11:34 编辑

ubuntu1204 amd64（我跑的是物理机）

use poll选项加后，没效果，性能反而慢了一点点（忽略不计），

64位系统貌似，不需要配置limit吧

root@ubuntu:~#
root@ubuntu:~# ulimit
unlimited
root@ubuntu:~#

复制代码

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tomtesla

白手起家

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13楼 [报告]

发表于 2014-03-21 11:34 |只看该作者

回复 12# action08

worker_rlimit_nofile 655350;
events {
      worker_connections  32767;
      use epoll;
      multi_accept on;
}

try "ulimit -n" , "ulimit -a"

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action08

巨富豪门

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14楼 [报告]

发表于 2014-03-21 11:40 |只看该作者

shell@ubuntu:~$ ulimit -a
core file size       (blocks, -c) 0
data seg size          (kbytes, -d) unlimited
scheduling priority          (-e) 0
file size             (blocks, -f) unlimited
pending signals                (-i) 28310
max locked memory    (kbytes, -l) 64
max memory size       (kbytes, -m) unlimited
open files                   (-n) 1024
pipe size          (512 bytes, -p) 8
POSIX message queues    (bytes, -q) 819200
real-time priority             (-r) 0
stack size             (kbytes, -s) 8192
cpu time             (seconds, -t) unlimited
max user processes             (-u) 28310
virtual memory       (kbytes, -v) unlimited
file locks                   (-x) unlimited
shell@ubuntu:~$
shell@ubuntu:~$
shell@ubuntu:~$
看来还是要调的哦，才1024