<span style="font-family:verdana,sans-serif">Hi All,</span><br style="font-family:verdana,sans-serif"><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Asterisk ( Server) Details ...</span><br style="font-family:verdana,sans-serif" clear="all">
<span style="font-family:verdana,sans-serif">Asterisk Version<b>: 1.8.13.0</b></span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">OS: <b>CentOS 6</b></span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">CPU: <b>Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz</b></span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">RAM: <b>4 GB</b></span><b><br style="font-family:verdana,sans-serif">
</b><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Started listening asterisk on UDP (5060) 'n TLS (5061) ports. I would like to reach maximum running call capacity on Asterisk machine, but after so many testing, just reach on 1200 calls at a time.</span><br style="font-family:verdana,sans-serif">
<br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Set <b>maxfiles=65536</b> in asterisk.conf, and <b>rtp 10000:50000.</b></span><br style="font-family:verdana,sans-serif"><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif"># ulimit -a</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">core file size (blocks, -c) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">data seg size (kbytes, -d) unlimited</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">scheduling priority (-e) 0</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">file size (blocks, -f) unlimited</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">pending signals (-i) 30585</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">max locked memory (kbytes, -l) 64</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">max memory size (kbytes, -m) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">open files (-n) 65536</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">pipe size (512 bytes, -p) 8</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">POSIX message queues (bytes, -q) 819200</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">real-time priority (-r) 0</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">stack size (kbytes, -s) 10240</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">cpu time (seconds, -t) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">max user processes (-u) 1024</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">virtual memory (kbytes, -v) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">file locks (-x) unlimited</span><br style="font-family:verdana,sans-serif"><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">I am using <b>SIPP</b> tools from another machine, which is Ubuntu system, configuration</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">OS: <b>Ubuntu</b></span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">RAM: <b>2 GB</b></span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">CPU:<b> Intel(R) Xeon(R) CPU E5310 @ 1.60GHz</b></span><br style="font-family:verdana,sans-serif"><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif"># ulimit -a</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">core file size (blocks, -c) 0</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">data seg size (kbytes, -d) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">scheduling priority (-e) 0</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">file size (blocks, -f) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">pending signals (-i) 15940</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">max locked memory (kbytes, -l) 64</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">max memory size (kbytes, -m) unlimited</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">open files (-n) 65536</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">pipe size (512 bytes, -p) 8</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">POSIX message queues (bytes, -q) 819200</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">real-time priority (-r) 0</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">stack size (kbytes, -s) unlimited</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">cpu time (seconds, -t) unlimited</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">max user processes (-u) 15940</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">virtual memory (kbytes, -v) unlimited</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">file locks (-x) unlimited</span><br style="font-family:verdana,sans-serif">
<br style="font-family:verdana,sans-serif"><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">While performing call test, after reach around 1000+ calls i received below warnings on asterisk cli.</span><br style="font-family:verdana,sans-serif">
<br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:44] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:44] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:44] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif">
<span style="font-family:verdana,sans-serif">[Oct 18 14:55:45] WARNING[13444]: chan_sip.c:2790 _sip_tcp_helper_thread: Failure to write to tcp/tls socket</span><br style="font-family:verdana,sans-serif"><br style="font-family:verdana,sans-serif">
<br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">-- </span><br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Regards,</span><br style="font-family:verdana,sans-serif">
<br style="font-family:verdana,sans-serif"><span style="font-family:verdana,sans-serif">Chandrakant Solanki</span><br style="font-family:verdana,sans-serif">