Hello, On 02/13/2009 11:17 PM, Alex R.S.M wrote: > Hi, > > As I mentioned in my previous email I am performing SIP to SIP performance > testing using Kamailio proxy (UAC-Kamailio-UAC). > After increasing the load to 300 calls/sec, Kamailio begins dropping UDP > packets. (250 cps works fine). > CPU utilization and network bandwidth looks fine. > > - UDP packet size on the Linux server is increased to 8M: > net.core.rmem_max = 8388608 > > - the number of children used in Kamailio config increased to 16: > fork=yes > children=16 > > > Here is there error I am getting in /var/log/syslog file: > > Feb 13 15:17:39 lab-linux01 /sbin/kamailio[12014]: ERROR:tm:new_t: out of mem > Feb 13 15:17:39 lab-linux01 /sbin/kamailio[12014]: ERROR:tm:t_newtran: new_t > failed > Feb 13 15:17:39 lab-linux01 /sbin/kamailio[12024]: ERROR:tm:new_t: out of mem > Feb 13 15:17:39 lab-linux01 /sbin/kamailio[12024]: ERROR:tm:t_newtran: new_t > failed > > > I am using 64M for the memory size (/etc/default/kamailio) > # Amount of memory to allocate for the running Kamailio server (in Mb) > MEMORY=64 > > Does it mean I need to increase this value? > Yes, you run out of share memory. Increase the value of MEMORY variable (it translates into -m command line option).
Cheers, Daniel > Thanks, > > > > > > > Date: Wed, 11 Feb 2009 18:26:49 +0200 > > From: [email protected] > > To: [email protected] > > CC: [email protected] > > Subject: Re: [Kamailio-Users] UDP packet loss > > > > Hello, > > > > On 02/11/2009 05:43 PM, Alex R.S.M wrote: > > > hello > > > > > > > What are the number of children you have in config? > > > fork=yes > > > children=4 > > this is a bit low if you want to manage high traffic. Try with > > children=16 and see how the results are. > > > > Cheers, > > Daniel > > > > > > > > > Do you get any error messages in the syslog? > > > not getting any error message in /var/log/syslog > > > > > > > > > Thanks, > > > Ali > > > > > > > > > > Date: Wed, 11 Feb 2009 17:21:46 +0200 > > > > From: [email protected] > > > > To: [email protected] > > > > CC: [email protected] > > > > Subject: Re: [Kamailio-Users] UDP packet loss > > > > > > > > Hello, > > > > > > > > On 02/11/2009 04:51 PM, Alex R.S.M wrote: > > > > > Hi, > > > > > > > > > > I am performing SIP to SIP performance testing using Kamailio > proxy > > > > > (UAC-Kamailio-UAC). After increasing the load to 300 calls/sec > > > > > Kamailio begins dropping UDP packets. (250 cps works fine). CPU > > > > > utilization and network bandwidth looks fine. I think the > bottleneck > > > > > is the Linux UDP buffer size of the proxy server. Here is the > proxy > > > > > server information: > > > > kamailio autodetects and sets the buffer size to the maximum > allowed. > > > > What are the number of children you have in config? Do you get any > > > error > > > > messages in the syslog? > > > > > > > > Cheers, > > > > Daniel > > > > > > > > > > > > > > $ uname -a > > > > > Linux lab-linux01 2.6.24-19-server #1 SMP Wed Jun 18 14:44:47 UTC > > > 2008 > > > > > x86_64 GNU/Linux > > > > > > > > > > $ sudo sysctl -a | grep net.core.rmem_max > > > > > net.core.rmem_max = 131071 > > > > > > > > > > > > > > > The question is if I increase the linux UDP buffer size do I > need to > > > > > change any configuartion parameter (like MAX_RECV_BUFFER_SIZE) in > > > > > Kamailio? > > > > > > > > > > Thanks, > > > > > Alex R > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > Windows Live™: Keep your life in sync. See how it works. > > > > > > > > > <http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_allup_howitworks_022009> > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > > > > > > _______________________________________________ > > > > > Kamailio (OpenSER) - Users mailing list > > > > > [email protected] > > > > > http://lists.kamailio.org/cgi-bin/mailman/listinfo/users > > > > > http://lists.openser-project.org/cgi-bin/mailman/listinfo/users > > > > > > > > -- > > > > Daniel-Constantin Mierla > > > > http://www.asipto.com > > > > > > > > > > > ------------------------------------------------------------------------ > > > Windows Live™: E-mail. Chat. Share. Get more ways to connect. > Check it > > > out. > > > > <http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t2_allup_explore_022009> > > > > -- > > Daniel-Constantin Mierla > > http://www.asipto.com > > > > ------------------------------------------------------------------------ > Windows Live™: Keep your life in sync. See how it works. > <http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_allup_howitworks_022009> -- Daniel-Constantin Mierla http://www.asipto.com _______________________________________________ Kamailio (OpenSER) - Users mailing list [email protected] http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
