VPS goes slow at more than 20 users online at the same time
- by hachiari
I have 512 MB VPS (brustable to 1GB)
Somehow, the site goes slow when there are about 10 users, and becomes impossible to load at 20 users online at the same time.
I wonder what could be the problem for this.
The bandwidth connection of the VPS is 1Gbps.
Here is some settings in my VPS:
KeepAlive Off
<IfModule prefork.c>
StartServers 7
MinSpareServers 7
MaxSpareServers 10
ServerLimit 64
MaxClients 64
MaxRequestsPerChild 0
</IfModule>
my.cnf settings - calculated Max Memory 300MB
Output from UNIXBENCH
INDEX VALUES
TEST BASELINE RESULT INDEX
Dhrystone 2 using register variables 376783.7 13429727.4 356.4
Double-Precision Whetstone 83.1 1137.5 136.9
Execl Throughput 188.3 1637.4 87.0
File Copy 1024 bufsize 2000 maxblocks 2672.0 148868.0 557.1
File Copy 256 bufsize 500 maxblocks 1077.0 79430.0 737.5
File Read 4096 bufsize 8000 maxblocks 15382.0 1410009.0 916.7
Pipe Throughput 111814.6 4419722.0 395.3
Pipe-based Context Switching 15448.6 561505.1 363.5
Process Creation 569.3 10272.7 180.4
Shell Scripts (8 concurrent) 44.8 514.3 114.8
System Call Overhead 114433.5 3537373.8 309.1
=========
FINAL SCORE 295.0
I am afraid that the VPS company limit the number of connection to the VPS... is it possible?
The server is in Japan, but the site has global traffic (some of the traffic are from countries with low speed connection). Could this be the problem?
This is a serious problem :( my site just cant grow if this keeps on happening... please tell me if you have any idea.
Thank You,
Bryant