<div dir="ltr">The first step towards great performance is to get real hardware. You will never come close to the performance when running inside a VM.<div><br></div><div style>/Peter</div></div><div class="gmail_extra"><br>
<br><div class="gmail_quote">2013/6/20 Vincent Xia <span dir="ltr"><<a href="mailto:gmangudai@gmail.com" target="_blank">gmangudai@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<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>
<br></div><div>i'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"><<a href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a>></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><br><br><div class="gmail_quote">On Wed, Jun 19, 2013 at 11:59 PM, S. Scott <span dir="ltr"><<a href="mailto:8f27e956@gmail.com" target="_blank">8f27e956@gmail.com</a>></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's "clocksource0" -- both available and current.<br>
<br>
Cheers,<br>
<br>
—————<br>
iThing: Big thumbs & little keys. Please excuse typo, spelling and<br>
grammar errors • Thought of the Day – "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 <<a href="mailto:william.king@quentustech.com" target="_blank">william.king@quentustech.com</a>> wrote:<br>
<br>
> Vincent,<br>
><br>
> What network card hardware are you using? UDP packets on cheap<br>
> networking cards are very sensitive to a lack of idle cpu time. I've<br>
> seen many models of RealTek cards that will start dropping over 10% of<br>
> all UDP packets if your CPU idle drops below ~50%. In my experience<br>
> server grade Intel network cards are much better, but even these will<br>
> start dropping ~5-10% of UDP packets if your CPU idle gets below 15%.<br>
><br>
> Also do these calls have the media going through this box? or through an<br>
> external media gateway?<br>
><br>
> William King<br>
> Senior Engineer<br>
> Quentus Technologies, INC<br>
> 1037 NE 65th St Suite 273<br>
> Seattle, WA 98115<br>
> Main: <a href="tel:%28877%29%20211-9337" value="+18772119337" target="_blank">(877) 211-9337</a><br>
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> <a href="mailto:william.king@quentustech.com" target="_blank">william.king@quentustech.com</a><br>
><br>
> On 06/19/2013 07:55 PM, Vincent Xia wrote:<br>
>> I've doubled CPU capability, now the CPU usage at 1000 calls is around<br>
>> 50%, but call loss is still 10-20%, maybe Brian is right, don't try more<br>
>> than 500 calls.<br>
>><br>
>><br>
>> 2013/6/19 Alex Lake <<a href="mailto:alex@digitalmail.com" target="_blank">alex@digitalmail.com</a> <mailto:<a href="mailto:alex@digitalmail.com" target="_blank">alex@digitalmail.com</a>>><br>
>><br>
>> If your CPU is averaging around 80-90%, I would consider that maxed out!<br>
>> Can you try it on a more powerful machine?<br>
>>> while i was doing stress test over FS, things look pretty good as<br>
>>> FS is able to hold 800 concurrent calls with a call loss rate at<br>
>>> around 0.1%, when leveling up to 1000 concurrent calls, the call<br>
>>> loss soars to 10-20%, i made some modification to switch.conf like<br>
>>><br>
>>> <param name="max-sessions" value="2000"/><br>
>>> <param name="sessions-per-second" value="100"/><br>
>>><br>
>>> but things didn't get any better, the host CPU usage rate is<br>
>>> around 80-90%, memory usage: 10%, network load 10%, so i think<br>
>>> there should be someway we can make FS handle more concurrent<br>
>>> calls, any ideas?<br>
>>><br>
>>><br>
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