Everytime someone asks this , the resounding answer is use a 64bit os.. No question Jay On 25/08/2009, at 23:19, Tihomir Culjaga <tculjaga@gmail.com> wrote:
Hey Giovanni,
thanks for the tip... indeed the db files were heavily used regardless if i started freeswitch with nosql option (freeswitch - nosql)... FS was not writing anything into that files ... instead it was just accessing it.... This behaviour leads to a waste of 40% CPU time... waiting for other processes (mainly disk access) to finish!!!
I moved freeswitch/db/ to a ramdisk and the performance got a boost to 140 CPS with a CPU load of 80%. I was keeping the machine for a while (20 - 30 minutes) on that rate when i sow CPU suddenly went to 100% and FS becoming irresponsive :).
What can be wrong? What are the limits in CPU usage (50%, 60%, 70%, 80%...) we should not cross? What fine tuning do we need in order to asure a long high load run?
Also, I'm running 32-bit OS (debian 5) on a 64 bit CPU... does it have sense to move my OS to 64 bit? ... will FS gain more preformance ?... I mean will FS perofomr drastically better 20%+ ?
Tihomir.
On Tue, Aug 25, 2009 at 11:00 AM, Giovanni Maruzzelli <gmaruzz@celliax.org
wrote: Maybe your load comes from disk access?
Try putting the sql and log directories on a ramdisk.
OTH,
-giovanni
On Tue, Aug 25, 2009 at 10:54 AM, Tihomir Culjaga<tculjaga@gmail.com> wrote:
Hello,
i'm trying to use freeswitch as a redirecting server meaning FS has to receive an INVITE and according to some rules it will redirect calls to other destinations.
CALLING_USER FREESWITCH SOMEWHERE
INVITE -------------------------------> <------------------------------ 100 Trying <------------------------------ 302 Moved Temporary ACK ------------------------------->
INVITE- --- --- --- --- -------------------------------------------------------------------->
Well, wverything works well except i have perfromance issues ....
on my HW
FS cannot do more than 40 CPS (INVITE answered by 302 Moved Temporary). When i increase the rate, FS starts delaying 302 response. Right at 50 CPS i see "calls" being build up in FS and the delay begining to grow.
When i observe the machine, load average is almost nothing (load average: 1.41, 0.61, 0.60) CPU never goes to 100%, and i see only one thread taking most load... all others are just sitting there with 1-5 % CPU time. This looks to me as FS handles 302 messages in a single thread?!?!
tculjaga@FS:/usr/local/freeswitch/conf/dialplan$ top -H
top - 10:41:37 up 167 days, 20:42, 3 users, load average: 1.41, 0.61, 0.60 Tasks: 83 total, 2 running, 81 sleeping, 0 stopped, 0 zombie Cpu(s): 25.3%us, 1.5%sy, 0.0%ni, 30.3%id, 42.7%wa, 0.0%hi, 0.2%si, 0.0%st Mem: 2074520k total, 571244k used, 1503276k free, 259604k buffers Swap: 2650684k total, 3020k used, 2647664k free, 153868k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 4814 root 20 0 34188 20m 3780 S 38 1.0 3:10.29 freeswitch 4800 root 20 0 34188 20m 3780 S 6 1.0 0:08.26 freeswitch 4798 root 20 0 34188 20m 3780 R 5 1.0 0:24.46 freeswitch 4787 root 20 0 34188 20m 3780 S 2 1.0 0:11.24 freeswitch 4794 root 20 0 34188 20m 3780 S 1 1.0 0:11.42 freeswitch 4803 root 20 0 34188 20m 3780 S 1 1.0 0:11.74 freeswitch 4788 root 20 0 34188 20m 3780 S 1 1.0 0:02.96 freeswitch 4804 root 20 0 34188 20m 3780 S 1 1.0 0:01.64 freeswitch 4807 root 20 0 34188 20m 3780 S 1 1.0 0:01.68 freeswitch 4811 root 20 0 34188 20m 3780 S 1 1.0 0:02.50 freeswitch
cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz stepping : 6 cpu MHz : 2333.560 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr dca lahf_lm bogomips : 4670.78 clflush size : 64 power management:
processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz stepping : 6 cpu MHz : 2333.560 cache size : 4096 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr dca lahf_lm bogomips : 4666.82 clflush size : 64 power management:
uname -a Linux l01sipindir1 2.6.26-1-686 #1 SMP Sat Jan 10 18:29:31 UTC 2009 i686 GNU/Linux
Of course, i've tuned the machine up
ulimit -c unlimited ulimit -d unlimited ulimit -f unlimited ulimit -i unlimited ulimit -n 999999 ulimit -q unlimited ulimit -u unlimited ulimit -v unlimited ulimit -x unlimited ulimit -s 240 ulimit -l unlimited ulimit -a
Started FS with minimum modules but still 40 CPS seems to be the limit.
So, is there any way to improve performance?
Tihomir.
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