9996 is not a good test extension because it does not generate any audio unless it gets some. 9998 that generates a tone or make up an ext that plays a file is a better one. Processing of the sip calls can be delayed by the presence stuff which is very intensive, you can try turning it off and see if you get more calls. Also you should compare it to what happens with the test exten first in the dial plan. On Tue, Aug 12, 2008 at 2:58 AM, UV <uv@talknet.com.au> wrote:
I'm trying to determine the FS resource bottleneck when operating under load (in windows environment), but can't get the FS to load for some unseen reason.
FS environment (a weak PC on purpose):
CPU 2x Intel Pentium 4 3GHz
RAM 2x 512MB DDR II RAM
Chipset - Intel E7221 (Copper River) chipset ICH6R + FWH + BCM5721
LAN 1x Broadcom Giga LAN
Windows 2003 Server – Service pack 2
FS version 9235
Running Release build on highest priority
Load script:
A different machine running sipP
Running rtp_echo load, 50 cps, limit of 1000 calls, 30sec call duration, extension 9996 (echo test):
sipp -rtp_echo -r 50 -l 1000 -d 30000 -s 9996 -sf auc.xml -mp 25000 -i 192.168.1.1 -mi 192.168.1.1 192.168.1.2
Results:
Test ran for 9.5 hours
Total of 48828 calls - all successful
No timeouts, retransmissions or unexpected messages.
Peak was 1003 calls after 4563 seconds (actual 0.2 cps)
Total of 1448750 RTP packets
Average response time: 11min 21 seconds
CPU usage 8% ~ 21%. Average 11%.
Memory usage:
Started with 26,000KB RAM, 27,660KB VM, 25 threads
Peak at 136,000KB RAM,,367,004KB VM, 1024 threads
Ended with 88,220KB RAM, 141,684KB VM, 24 threads
Disk usage wasn't monitored.
My question is what is slowing the response time so much but keeps the CPU running low?
NB
Following Patrick Grondin's post from 17-Jul-08, I intentionally didn't change the default dialplan as I'm trying to load up the CPU.
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