I really like how you characterize 300CPS as moderate, your test is somewhat unclear, are you doing 300CPS with a duration of 3 seconds or are you just ramping up to to 1500 calls total at 300CPS. ./b On Thu, Nov 26, 2015 at 2:21 AM, Denys D <dvmorte@gmail.com> wrote:
Hi! Has anybody faced with high system calls on Centos 7 while running FreeSwitch? We have migrated from FS 1.2.23 on Centos 5.11 to FS 1.6.2 on Centos 7 and faced with very high syscall (up to 60% CPU time) rate under moderate load (300 CPS, 1500 simultaneous calls). We also faced the same issue on Centos 6.7 and Debian 8.2 with FS 1.6.2 on the same hardware. On Centos 5.11 with the same load and h/w we had no more than 10% syscalls CPU time. We have already tried nohz=off kernel option and it didn't solve the problem. What should we change in our environment to achieve the same performance level as it was on Centos 5.11?
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