<div dir="ltr">exactly, im doing the test on a virtual box, double the CPU from quad-core to oct-core, the test scenario is simple, making calls at a speed of 28calls per sec, play sound file at PCMU codec for 150 sec after connected, then hangup and repeat.<div style>
<br></div><div style>i&#39;ve heard people stress tests FS with over 2000 concurrent calls, so i think there should be some way i can make my FS box more powerful, but things seem not gonna be easy to do.</div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">2013/6/20 Anthony Minessale <span dir="ltr">&lt;<a href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Doubled it so quick? Does that mean its a virtual or real box?<div>The distro, the hardware, the speed of the network, the configuration, the filesystem all matter in performance.</div><div>There is no mention to what the test is or what the frequency of calls is etc.  Short duration calls hurt more than long etc.</div>

<div><br></div><div>This is part of why we tend to shy away from load testing questions.  </div><div><br></div></div><div class="gmail_extra"><div><div class="h5"><br><br><div class="gmail_quote">On Wed, Jun 19, 2013 at 11:59 PM, S. Scott <span dir="ltr">&lt;<a href="mailto:8f27e956@gmail.com" target="_blank">8f27e956@gmail.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Vincent,<br>
<br>
I concur with quality lan card advice, namely intel. Also, what is<br>
your system&#39;s &quot;clocksource0&quot; -- both available and current.<br>
<br>
Cheers,<br>
<br>
—————<br>
iThing:  Big thumbs &amp; little keys. Please excuse typo, spelling and<br>
grammar errors • Thought of the Day – &quot;With all this manure, there<br>
must be a pony in here somewhere.”<br>
<div><div><br>
On 2013-06-19, at 23:35, William King &lt;<a href="mailto:william.king@quentustech.com" target="_blank">william.king@quentustech.com</a>&gt; wrote:<br>
<br>
&gt; Vincent,<br>
&gt;<br>
&gt; What network card hardware are you using? UDP packets on cheap<br>
&gt; networking cards are very sensitive to a lack of idle cpu time. I&#39;ve<br>
&gt; seen many models of RealTek cards that will start dropping over 10% of<br>
&gt; all UDP packets if your CPU idle drops below ~50%. In my experience<br>
&gt; server grade Intel network cards are much better, but even these will<br>
&gt; start dropping ~5-10% of UDP packets if your CPU idle gets below 15%.<br>
&gt;<br>
&gt; Also do these calls have the media going through this box? or through an<br>
&gt; external media gateway?<br>
&gt;<br>
&gt; William King<br>
&gt; Senior Engineer<br>
&gt; Quentus Technologies, INC<br>
&gt; 1037 NE 65th St Suite 273<br>
&gt; Seattle, WA 98115<br>
&gt; Main:   (877) 211-9337<br>
&gt; Office: (206) 388-4772<br>
&gt; Cell:   (253) 686-5518<br>
&gt; <a href="mailto:william.king@quentustech.com" target="_blank">william.king@quentustech.com</a><br>
&gt;<br>
&gt; On 06/19/2013 07:55 PM, Vincent Xia wrote:<br>
&gt;&gt; I&#39;ve doubled CPU capability, now the CPU usage at 1000 calls is around<br>
&gt;&gt; 50%, but call loss is still 10-20%, maybe Brian is right, don&#39;t try more<br>
&gt;&gt; than 500 calls.<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; 2013/6/19 Alex Lake &lt;<a href="mailto:alex@digitalmail.com" target="_blank">alex@digitalmail.com</a> &lt;mailto:<a href="mailto:alex@digitalmail.com" target="_blank">alex@digitalmail.com</a>&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt;    If your CPU is averaging around 80-90%, I would consider that maxed out!<br>
&gt;&gt;    Can you try it on a more powerful machine?<br>
&gt;&gt;&gt;    while i was doing stress test over FS, things look pretty good as<br>
&gt;&gt;&gt;    FS is able to hold 800 concurrent calls with a call loss rate at<br>
&gt;&gt;&gt;    around 0.1%, when leveling up to 1000 concurrent calls, the call<br>
&gt;&gt;&gt;    loss soars to 10-20%, i made some modification to switch.conf like<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt;    &lt;param name=&quot;max-sessions&quot; value=&quot;2000&quot;/&gt;<br>
&gt;&gt;&gt;    &lt;param name=&quot;sessions-per-second&quot; value=&quot;100&quot;/&gt;<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt;    but things didn&#39;t get any better, the host CPU usage rate is<br>
&gt;&gt;&gt;    around 80-90%, memory usage: 10%, network load 10%, so i think<br>
&gt;&gt;&gt;    there should be someway we can make FS handle more concurrent<br>
&gt;&gt;&gt;    calls, any ideas?<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div></div></div>-- <br>Anthony Minessale II<br><br>FreeSWITCH <a href="http://www.freeswitch.org/" target="_blank">http://www.freeswitch.org/</a><br>ClueCon <a href="http://www.cluecon.com/" target="_blank">http://www.cluecon.com/</a><br>

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