Performance problems! HEEEELP!

Hi,

I just migrated 2 of my large chat communities from Joomla/Visichat to Dolphin.... But now when i opened the sites my dedicated machine is crying and i have load avg on 90+ (had 0.8 before with 200 concurrent chatters online on my sites).

I have walked through all performance tweaks on the Wiki, and it looks like each connected user has an OWN Apache2 process trying to steal the CPU.

Am running the Raychat + RMS on the site, still it renders slow as "#%&&&%". Was this the wrong move to migrate to Dolphin (i didn't copy anything from my old sites, so clean install and i have 300 and 200 users on each site since i opened it up yesterday.

Running on a dedicated DUAL Intel(R) Xeon(TM) CPU 3.00GHz  / 4 GB RAM and Raid5 disks :(

Grrr Dolphin is killing my server totally :/

So, am i able to have 20.000+ members on my site and still get performance ? is it better off to run dolphin under another httpd ??

Please help..

top - 00:41:21 up 340 days, 21:12,  2 users,  load average: 91.86, 85.12, 74.72
Tasks: 246 total, 100 running, 146 sleeping,   0 stopped,   0 zombie
Cpu(s): 92.5%us,  7.0%sy,  0.2%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.3%si,  0.0%st
Mem:   3632620k total,  3375588k used,   257032k free,   174200k buffers
Swap:  2650684k total,    64704k used,  2585980k free,  1620948k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 4650 mysql     20   0 1244m 208m 5908 S    5  5.9   8:31.23 mysqld
12987 www-data  20   0 32008  12m 3952 R    3  0.3   0:12.62 apache2
13199 www-data  20   0 31140  11m 3948 R    3  0.3   0:08.50 apache2
11263 www-data  20   0 34640  15m 4324 R    3  0.4   0:58.11 apache2
12282 www-data  20   0 30568  11m 4792 R    3  0.3   0:28.58 apache2
12918 www-data  20   0 30968  11m 3808 R    3  0.3   0:14.62 apache2
12934 www-data  20   0 32340  12m 4192 R    3  0.4   0:14.04 apache2
13203 www-data  20   0 31288  11m 3996 R    3  0.3   0:08.58 apache2
11138 www-data  20   0 33644  13m 4292 R    2  0.4   1:02.73 apache2
11518 www-data  20   0 44856  25m 4388 R    2  0.7   0:49.69 apache2
 8028 www-data  20   0 39100  20m 5628 R    2  0.6   2:50.47 apache2
 8267 www-data  20   0 33284  13m 4324 R    2  0.4   2:41.42 apache2
 8585 www-data  20   0 36680  17m 4384 R    2  0.5   2:35.35 apache2
11750 www-data  20   0 33836  13m 3480 R    2  0.4   0:50.35 apache2
11788 www-data  20   0 33024  12m 4064 R    2  0.4   0:58.09 apache2
12033 www-data  20   0 32432  12m 4080 R    2  0.3   0:36.39 apache2
12391 www-data  20   0 37244  17m 4204 R    2  0.5   0:25.42 apache2

There are a lot of periodic requests in Dolphin, try to disable them or gradually increase the time between these requests.