On Fri, 28 Dec 2007, Steve Totaro wrote: > Gordon Henderson wrote: >> On Fri, 28 Dec 2007, Steve Totaro wrote: >> >> >>> broadband Voice wrote: >>> >>>> On 12/27/07, *broadband Voice* <[EMAIL PROTECTED] >>>> <mailto:[EMAIL PROTECTED]>> wrote: >>>> >>>> I am using Asterisk and A2billing Calling Card Platform and after >>>> the 6th call the quality starts to degrade. The way it set up is >>>> the user calls into the system then dial out so I have 12 channels >>>> being used up but 6 active calls. Here are my specs Asterisk >>>> SVN-branch-1.4-r79142 on a i686 running Linux Fedora 6, Pentium 4 >>>> Hyper-Threading, 64 bit, 1GB of RAM, 80 GB Sata Drive, bandwidth 4 >>>> Mbps (1300GB/Throughput) burstable to 100Mbps. >>>> >>>> I am planning on upgrading to Intel Core 2 Duo with a clock speed >>>> of 1.8GHZ and 2GB Ram. Does anyone have similar situation or >>>> advice? Thanks. >>>> >>>> >>>> >>> Your system should be able to handle that volume easily. >>> >>> What are you using for PSTN connectivity? >>> >>> I have heard of people having issues with Hyperthreading. That could be >>> a problem, although I have never had any issues myself. >>> >>> What does top look like? >>> >>> When I had a similar issue (voice quality while running monitor on over >>> seventy calls) I found a small Linux CLI app, I cannot remember the name >>> of it but it would give IO stats (I think it may be named IOStat or >>> something similar) and I could see right where the bottleneck was >>> (obviously disc IO but I was able to see exactly where the breaking >>> point was). That may help identify something. >>> >> >> Try: >> >> vmstat 1 >> >> IIRC, iostat is a *BSD type utility, but it's been many years since I >> touched BSD! >> >> It is possible to graph disk IO as well as network packet IO if required >> using (eg) MRTG. >> >> Gordon >> >> > > http://www.linuxquestions.org/linux/articles/Jeremys_Magazine_Articles/Hunting_I_O_Bottlenecks_with_iostat
Ah, intersting, so I was about to suggest it might be a distro thing, but digging deeper, I find there is an iostat for Debian - under the generic package "sysstat" which is why I've never found it in the past. The iostat I remember for BSD had a screen/curses interface, but scrolling might help you see trends. Cheers, Gordon _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users