Carles Pina i Estany
2008-Apr-22 11:10 UTC
[asterisk-users] Quality problems with ISDN PRI
Hello, We have an Asterisk server with a TE410P Quad-Span togglable E1/T1/J1 card, 3 SPANs configured and OK and one SPAN unconfigured. In our tests it works fine, but when it has a big laod of calls (say, from 40 to 60) we have quality problems: some calls has the sound cut-off (during the call, voice was not stable) The IRQ card is alone, CPU load was not high, network was fine for sure. This server is receiving the calls from SIP channels and routing to the primaries. It's a HP server, multicore, multiCPU. I'm wondering if someone has had these kind of problems (quality problems, sound cut off) with 40 and 60 calls but not with 2 or 3, using Digium cards. Bit later I will call to Digium but I thought that here there is lot of people with lot of experience with these cards. Thank you, -- Carles Pina i Estany GPG id: 0x8CBDAE64 http://pinux.info Manresa - Barcelona
Carles Pina i Estany wrote:> Hello, > > We have an Asterisk server with a TE410P Quad-Span togglable E1/T1/J1 > card, 3 SPANs configured and OK and one SPAN unconfigured. > > In our tests it works fine, but when it has a big laod of calls (say, > from 40 to 60) we have quality problems: some calls has the sound > cut-off (during the call, voice was not stable) > > The IRQ card is alone, CPU load was not high, network was fine for sure. > This server is receiving the calls from SIP channels and routing to the > primaries. It's a HP server, multicore, multiCPU. > > I'm wondering if someone has had these kind of problems (quality > problems, sound cut off) with 40 and 60 calls but not with 2 or 3, using > Digium cards. > > Bit later I will call to Digium but I thought that here there is lot of > people with lot of experience with these cards.There are a number of factors that can contribute to this type of problem, but probably the best solution is to call support and talk to them about this. -- Matthew Fredrickson Software/Firmware Engineer Digium, Inc.
On Tue, Apr 22, 2008 at 7:10 AM, Carles Pina i Estany <carles at pina.cat> wrote:> > Hello, > > We have an Asterisk server with a TE410P Quad-Span togglable E1/T1/J1 > card, 3 SPANs configured and OK and one SPAN unconfigured. > > In our tests it works fine, but when it has a big laod of calls (say, > from 40 to 60) we have quality problems: some calls has the sound > cut-off (during the call, voice was not stable) > > The IRQ card is alone, CPU load was not high, network was fine for sure. > This server is receiving the calls from SIP channels and routing to the > primaries. It's a HP server, multicore, multiCPU. > > I'm wondering if someone has had these kind of problems (quality > problems, sound cut off) with 40 and 60 calls but not with 2 or 3, using > Digium cards. > > Bit later I will call to Digium but I thought that here there is lot of > people with lot of experience with these cards. > > Thank you, >Just curious, are you recording these calls because that is around the I/O threshold for audio issues when recording all calls. Also, you say no network issues but what is the rating of your switches PPS (often overlooked for speed such as 100mb or 1000mb)? Thanks, Steve Totaro
> > Just curious, are you recording these calls because that is around the > I/O threshold for audio issues when recording all calls.100% right, all recording should (its a must actually) be done in ram drive then copied to disk later. an asterisk server that do recording should have enough ram to store the recording ... perhaps 2Gigs that should be emptied every one hour or two. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080423/039f0019/attachment.htm
On Wed, Apr 23, 2008 at 2:07 PM, linuxian iandsd <pylinuxian at gmail.com> wrote:> > > Just curious, are you recording these calls because that is around the > > I/O threshold for audio issues when recording all calls. > > 100% right, all recording should (its a must actually) be done in ram drive > then copied to disk later. an asterisk server that do recording should have > enough ram to store the recording ... perhaps 2Gigs that should be emptied > every one hour or two. >There are much better solutions than doing a RAM drive. While it may be stable (not in my experience, I advise using different servers for different tasks (with redundancy obviously). A phone switch should be just that, a recording server should also be just that (in demanding environments). Thanks, Steve Totaro
> > I advise using different servers for > different tasks (with redundancy obviously).i would really appreciate it if you gave me some hints about making recording run on another server. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080423/e0a15eb6/attachment.htm
> > "top" says asterisk 1.2.25 is using multiple cores: > > Cpu0 : 2.7% us, 9.3% sy, 0.0% ni, 87.7% id, 0.0% wa, 0.3% hi, 0.0% > si > Cpu1 : 1.7% us, 4.0% sy, 0.0% ni, 94.3% id, 0.0% wa, 0.0% hi, 0.0% > si > Cpu2 : 1.3% us, 4.3% sy, 0.0% ni, 94.3% id, 0.0% wa, 0.0% hi, 0.0% > si > Cpu3 : 1.3% us, 3.0% sy, 0.0% ni, 95.6% id, 0.0% wa, 0.0% hi, 0.0% > si > >is this multi-core ? I think its a multi-processor machine, and as i said I might be wrong simply because this bypasses by far my technical knowldge .. I m not a kernel developer after all. :) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080423/ea9eca11/attachment.htm
> > There are much better solutions than doing a RAM drive. While it may > be stable (not in my experience, I advise using different servers for > different tasks (with redundancy obviously). A phone switch should be > just that, a recording server should also be just that (in demanding > environments).hi, still hoping you will give us some insight about remote recording server. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080424/acddcca7/attachment.htm
Every CPU core shows up as a separate CPU under Linux. For those that have hyperthreaded processors, a single core processor will show up as two processors - assuming you have hyperthreading enabled. linuxian iandsd wrote:> > "top" says asterisk 1.2.25 is using multiple cores: > > Cpu0 : 2.7% us, 9.3% sy, 0.0% ni, 87.7% id, 0.0% wa, 0.3% > hi, 0.0% si > Cpu1 : 1.7% us, 4.0% sy, 0.0% ni, 94.3% id, 0.0% wa, 0.0% > hi, 0.0% si > Cpu2 : 1.3% us, 4.3% sy, 0.0% ni, 94.3% id, 0.0% wa, 0.0% > hi, 0.0% si > Cpu3 : 1.3% us, 3.0% sy, 0.0% ni, 95.6% id, 0.0% wa, 0.0% > hi, 0.0% si > > > is this multi-core ? I think its a multi-processor machine, and as i > said I might be wrong simply because this bypasses by far my technical > knowldge .. I m not a kernel developer after all. :) > !DSPAM:4810121c213011316913527! > ------------------------------------------------------------------------ > > _______________________________________________ > -- 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 > > !DSPAM:4810121c213011316913527! >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080425/9d71bb3a/attachment.htm
On Thu, Apr 24, 2008 at 11:18 AM, Rob Hillis <rob at hillis.dyndns.org> wrote:> > Every CPU core shows up as a separate CPU under Linux. For those that have > hyperthreaded processors, a single core processor will show up as two > processors - assuming you have hyperthreading enabled. >That is interesting. I have an intel C2D and I can only see two procs, not four, is that normal? Are you sure what you are saying is correct? I am obviously running SMP. Thanks Steve totaro
Steve Totaro wrote:> That is interesting. I have an intel C2D and I can only see two > procs, not four, is that normal? Are you sure what you are saying is >I believe Intel removed HyperThreading after it moved over to dual cores. Doug -- Ben Franklin quote: "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."
On Fri, Apr 25, 2008 at 11:10 AM, Doug Lytle <support at drdos.info> wrote:> Steve Totaro wrote: > > That is interesting. I have an intel C2D and I can only see two > > procs, not four, is that normal? Are you sure what you are saying is > > > > I believe Intel removed HyperThreading after it moved over to dual cores. > > Doug > > -- > > Ben Franklin quote: > > "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety." >My dual proc, dual core AMD boxen show as four procs. I guess the AMD architecture uses Hypertheading (or whatever the equivalent is for AMD, I assume Intel owns the rights to the name Hyperthreading). Thanks, Steve Totaro
Steve Totaro wrote:> On Fri, Apr 25, 2008 at 11:10 AM, Doug Lytle <support at drdos.info> wrote: > >> Steve Totaro wrote: >> > That is interesting. I have an intel C2D and I can only see two >> > procs, not four, is that normal? Are you sure what you are saying is >> > >> >> I believe Intel removed HyperThreading after it moved over to dual cores. >> >> Doug >> >> -- >> >> Ben Franklin quote: >> >> "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety." >> >> > > My dual proc, dual core AMD boxen show as four procs. I guess the AMD > architecture uses Hypertheading (or whatever the equivalent is for > AMD, I assume Intel owns the rights to the name Hyperthreading). > >Two dual core processors /would/ should four processors - each processor has two virtual processors for a total of four. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080426/266935d1/attachment.htm
"Steve Totaro" <stotaro at totarotechnologies.com> writes:> My dual proc, dual core AMD boxen show as four procs. I guess the AMD > architecture uses Hypertheading (or whatever the equivalent is for > AMD, I assume Intel owns the rights to the name Hyperthreading).I think the more likely explanation is that two times two is four. /Benny
On Sat, Apr 26, 2008 at 2:37 PM, Benny Amorsen <benny+usenet at amorsen.dk> wrote:> "Steve Totaro" <stotaro at totarotechnologies.com> writes: > > > My dual proc, dual core AMD boxen show as four procs. I guess the AMD > > architecture uses Hypertheading (or whatever the equivalent is for > > AMD, I assume Intel owns the rights to the name Hyperthreading). > > I think the more likely explanation is that two times two is four. > > > /Benny >But then that gets back to my Intel C2D show as two procs. 2 x 2 = 2. Or is C2D not four cores? Thanks, Steve Totaro
No, a dual core processor has two cores. :) My Quad core shows four processors. Steve Totaro wrote:> On Sat, Apr 26, 2008 at 2:37 PM, Benny Amorsen <benny+usenet at amorsen.dk> wrote: > >> "Steve Totaro" <stotaro at totarotechnologies.com> writes: >> >> > My dual proc, dual core AMD boxen show as four procs. I guess the AMD >> > architecture uses Hypertheading (or whatever the equivalent is for >> > AMD, I assume Intel owns the rights to the name Hyperthreading). >> >> I think the more likely explanation is that two times two is four. >> >> >> /Benny >> >> > > But then that gets back to my Intel C2D show as two procs. 2 x 2 = 2. > Or is C2D not four cores? > > Thanks, > Steve Totaro > > _______________________________________________ > -- 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 > > !DSPAM:48137bd6112601373216315! > > >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080427/525083db/attachment.htm
"Steve Totaro" <stotaro at totarotechnologies.com> writes:> But then that gets back to my Intel C2D show as two procs. 2 x 2 = 2. > Or is C2D not four cores?D is for duo. /Benny
D is for Disturbing other poeple. On Sat, Apr 26, 2008 at 10:39 PM, Benny Amorsen <benny+usenet at amorsen.dk<benny%2Busenet at amorsen.dk>> wrote:> "Steve Totaro" <stotaro at totarotechnologies.com> writes: > > > But then that gets back to my Intel C2D show as two procs. 2 x 2 = 2. > > Or is C2D not four cores? > > D is for duo. > > > /Benny > > > > _______________________________________________ > -- 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 >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080426/948f9ce5/attachment.htm
Got it, sorry, nothing to see here... I thought the 2 and duo meant 2 x 2 as the name would imply (to me at least). I stopped keeping up on processors with the exception of exceptional hardware like the ARM, RISC, FPGA, and Itanium2. Thanks, Steve Totaro On Sat, Apr 26, 2008 at 7:17 PM, Arthur <pylinuxian at gmail.com> wrote:> D is for Disturbing other poeple. > > > > On Sat, Apr 26, 2008 at 10:39 PM, Benny Amorsen <benny+usenet at amorsen.dk> > wrote: > > > > "Steve Totaro" <stotaro at totarotechnologies.com> writes: > > > > > > > But then that gets back to my Intel C2D show as two procs. 2 x 2 = 2. > > > Or is C2D not four cores? > > > > D is for duo. > > > > > > /Benny > > > > > > > > > > > > > > _______________________________________________ > > -- 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 > > > > > _______________________________________________ > -- 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 >