[Freeswitch-users] Freeswitch performance as a redirecting server
Tihomir Culjaga
tculjaga at gmail.com
Tue Aug 25 06:19:41 PDT 2009
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 at 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 at 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 at 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.
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > FreeSWITCH-users mailing list
> > FreeSWITCH-users at lists.freeswitch.org
> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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> >
> >
>
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