I have a problem when i hit 100times f5 key on my website. Load is extremly high and server isn't reachable for other users for a long time..
Below some information/specs:
When i visit the site made in cakephp, mysql did 69 queries took 4 ms.
I have a VPS, with debian 6 installed 64bit
I installed directadmin custom build: Apache/2.2.21 & PHP 5.2.17 (cli)
top command give me this when server is stable:
I have 1 website running now on this server, visitors under 100/day
When i press f5 key on my site 100times top command give me this:
What causes the server to have so much load? And what can I do about it?
Below some information/specs:
When i visit the site made in cakephp, mysql did 69 queries took 4 ms.
I have a VPS, with debian 6 installed 64bit
Code:
VPS has:
4096 MB ram,
100 GB diskspace
4 CPU Cores
Intel X5650, 2.67Ghz processorI installed directadmin custom build: Apache/2.2.21 & PHP 5.2.17 (cli)
top command give me this when server is stable:
Code:
top - 09:19:27 up 48 min, 1 user, load average: 0.00, 0.02, 0.09
Tasks: 155 total, 1 running, 154 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3%us, 0.6%sy, 0.0%ni, 99.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 4061528k total, 531684k used, 3529844k free, 13388k buffers
Swap: 4290552k total, 0k used, 4290552k free, 159524k cachedI have 1 website running now on this server, visitors under 100/day
When i press f5 key on my site 100times top command give me this:
Code:
top - 09:34:58 up 1:03, 1 user, load average: [B]49.08[/B], 13.48, 4.61
Tasks: 249 total, 86 running, 163 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.6%us, 97.3%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 4061528k total, 1115364k used, 2946164k free, 15080k buffers
Swap: 4290552k total, 0k used, 4290552k free, 159792k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3505 apache 20 0 106m 10m 2852 R 6 0.3 0:02.13 httpd
3520 apache 20 0 106m 10m 2852 R 6 0.3 0:02.07 httpd
3522 apache 20 0 106m 10m 2848 R 6 0.3 0:02.01 httpd
3440 apache 20 0 116m 21m 3344 R 5 0.5 0:03.30 httpd
3445 apache 20 0 115m 19m 3352 R 5 0.5 0:02.92 httpd
3451 apache 20 0 111m 16m 3304 R 5 0.4 0:02.65 httpd
3456 apache 20 0 111m 16m 3304 R 5 0.4 0:02.67 httpd
3467 apache 20 0 107m 11m 2856 R 5 0.3 0:02.45 httpd
3478 apache 20 0 106m 10m 2852 R 5 0.3 0:02.36 httpd
3479 apache 20 0 106m 10m 2852 R 5 0.3 0:02.32 httpd
3481 apache 20 0 106m 10m 2852 R 5 0.3 0:02.24 httpd
3482 apache 20 0 106m 10m 2852 R 5 0.3 0:02.35 httpd
....... allot more...