On 06/22/2010 12:24 PM, Kristijan Vrban wrote: > Hello, i just made the reproducible watching: > I send a Fax from asterisk (trunk) with spandsp (latest snapshot) via > T.38 -> Audiocodes Mediant 2000 (FW 5.60.43.5) -> PSTN Fax > With Internal timing Enabled, the Fax break after the first quarter > from the first page is transfered. > With Internal timing Disabled, the fax is transferred flawless. > > Both test with pthread timing module on a QEMU Virtual maschine > > So, is internal timing bad for Fax?
No, but you've chosen a very bad combination to provide timing; res_timing_pthread uses a great deal of CPU to do its job (much more than the other options), and you are running in a virtual machine on top of that. If you are running on Linux and can run a kernel that supports res_timing_timerfd, you'll have better results, but running in a virtual machine will always means that you are subject to random scheduling-related problems. -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA skype: kpfleming | jabber: [email protected] Check us out at www.digium.com & www.asterisk.org -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
