This is very interesting! Giovanni, do you mean that FS reads once the target of the “hold_music” variable? Or specifically “local_stream://moh” as an argument to local_stream? I’ll update the wiki with this useful info. Thanks. --- John Boteler BnC Group U.S.A. From: FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org> On Behalf Of Giovanni Maruzzelli Sent: Wednesday, 14 October, 2020 08:11 To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org> Subject: Re: [Freeswitch-users] FS on a VM only uses one cpu? On Wed, Oct 14, 2020 at 11:35 AM David Villasmil <david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> > wrote: Thanks for replying. I’m not using mod_callcenter at all. I’m simply playing back a file. I wonder if this is cpu bounding. I guess I can test this by doing echo instead. to eliminate cpu load from reading/decoding file, use moh (read just one time, then broadcast samples to all calls, no cpu, I believe less than echo in case of many concurrent calls) -giovanni I also added another profile, since I read on a thread it might help (also read that’s not true), but that’s not it. All of my metal boxes work just fine at ~3000 channels, so I’m thinking it’s related somehow to the underlying VM. Thanks again. On Wed, 14 Oct 2020 at 07:29, Shaun Stokes <shaun@sysconfig.cloud <mailto:shaun@sysconfig.cloud> > wrote: Hi David, We also use FS on a RAM Disk, it works great with 100's of concurrent calls on all the databases except for the call centre module which quickly becomes CPU bound. Were you using the call centre module in your test? If so, I'd suggest moving it to an external RDBMS such as PGSQL (could be running on the same VM). FS is multi-threaded but there are certain processes which FS creates a dedicated child process for (one thread) such as SQLite (one process per database). If you can find out which FS process is using 100% CPU on one thread then you should be able to identify the bottleneck. Similar issue here: https://lists.freeswitch.org/pipermail/freeswitch-users/2012-October/088895.... Thanks, Shaun _____ From: FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org <mailto:freeswitch-users-bounces@lists.freeswitch.org> > on behalf of David Villasmil <david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> > Sent: 14 October 2020 00:14 To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org <mailto:freeswitch-users@lists.freeswitch.org> > Subject: Re: [Freeswitch-users] FS on a VM only uses one cpu? BTW sqlite is on a ram disk. Regards, David Villasmil email: david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> phone: +34669448337 On Tue, Oct 13, 2020 at 11:13 PM David Villasmil <david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> > wrote: Hello all, I compiled 1.10 on a debian-buster VM, and from htop it looks it's only utilizing one CPU. Anyone seen this? I'm just running test calls, fs receives and playback a wav file. This is at 700 channels. Regards, David Villasmil email: david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> phone: +34669448337 _________________________________________________________________________ The FreeSWITCH project is sponsored by SignalWire https://signalwire.com Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services. Build your next product on our scalable cloud platform. Join our online community to chat in real time https://signalwire.community Professional FreeSWITCH Services sales@freeswitch.com <mailto:sales@freeswitch.com> https://freeswitch.com Official FreeSWITCH Sites https://freeswitch.com/oss https://freeswitch.org/confluence https://cluecon.com FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users https://freeswitch.com -- Regards, David Villasmil email: david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> phone: +34669448337 _________________________________________________________________________ The FreeSWITCH project is sponsored by SignalWire https://signalwire.com Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services. Build your next product on our scalable cloud platform. Join our online community to chat in real time https://signalwire.community Professional FreeSWITCH Services sales@freeswitch.com <mailto:sales@freeswitch.com> https://freeswitch.com Official FreeSWITCH Sites https://freeswitch.com/oss https://freeswitch.org/confluence https://cluecon.com FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users https://freeswitch.com -- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18