[Freeswitch-users] centos 5.4 timer issue 1000hz, choppy voice at times

Wasim Baig wasim at convergence.pk
Mon May 17 21:19:45 PDT 2010

I know its been discussed previously on list, but has there been any
progress to the timer issue on centos 5.4 32 bit

Linux pum2 2.6.18-164.el5 #1 SMP Thu Sep 3 03:33:56 EDT 2009 i686 i686 i386

[root at pum2 ~]# grep 1000 /boot/config-2.6.18-164.el5

i used a basic timer testing utility to confirm what we're actually getting

[root at pum2 ~]# ./timerchk
kernel timer interrupt frequency is approx. 1002 Hz

however, fs complains ...

2010-05-18 06:17:24.711360 [CONSOLE] switch_time.c:1032 Calibrating timer,
please wait...
2010-05-18 06:17:24.861063 [CONSOLE] switch_time.c:223 Test: 1000 Average:
2992 Step: 50
2010-05-18 06:17:24.861097 [WARNING] switch_time.c:227 Abnormally large
timer gap 1992 detected!
Do you have your kernel timer frequency set to lower than 1,000Hz? You may
experience audio problems.

any recommendations, other than drop to 5.3? which is not doable as the box
is a 5k km away ...

wasim h. baig | principal consultant | convergence pk | +92 30 0850 8070 |
peace be upon you ...
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