[Freeswitch-users] "Upgrade" from 1.3b to 1.2stable caused higher cpu usage

[Freddy Andersen]

Hi,

We have 5 Freeswitch servers running with about 500 concurrent calls total so about 100 each at peak. These servers was installed with version FreeSWITCH Version 1.3.13b+git~20130215T194756Z~9733740cab (git 9733740 2013-02-15 19:47:56Z) and they have been running fine with 250% cpu (out of 2400%), load average hits 3 at peak. 

We wanted to get our Freeswitch onto a stable release and thought 1.2.12 was the most stable version so this is what we installed on one server. This servers cpu is at 800-900% and load average hits 10 when the server runs with 1.2.12, if we rollback cpu goes back to old 2-300%.. Call quality is still ok but I feel we have less room for more load and upgrading should normally improve performance not decrees performance. Just as an experiment I also tried to install latest 1.4 thinking this might have been something in the 1.2 branch but 1.4 acts the exact same.

here is a quick vmstat snapshot:

procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
15  2      0 430144 321280 9988432    0    0     3    33    1    1 11  3 87  0
 7  0      0 425160 321344 9991936    0    0    56   116 67726 113824 30  4 66  0
22  0      0 424380 321368 9993580    0    0    28     0 84236 148377 25  4 70  0
19  0      0 423656 321404 9994324    0    0    32     0 61714 103954 23  2 74  0
 9  0      0 422740 321444 9996020    0    0    24  1524 52116 86355 23  2 74  0
 7  0      0 421908 321456 9997160    0    0    20  5524 58977 98786 22  2 76  0
10  0      0 420812 321464 9998244    0    0     4     0 52964 83640 23  2 75  0
21  0      0 417152 321496 9999184    0    0    56    36 73430 124669 25  3 71  0
 6  0      0 417496 321516 10000704    0    0    20     0 78778 134441 27  3 69  0

This is from sometime, same calls but from a freeswitch 1.3 server:

procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 3  0    244 2668752 269200 4589652    0    0     7    60    1    0 14  3 83  0
 4  0    244 2666192 269228 4590676    0    0    64    12 44941 50134 24  4 72  0
 3  0    244 2670200 269256 4592680    0    0    28    24 62350 86122 34  4 62  0
 4  0    244 2668584 269280 4593848    0    0    20     0 43495 53052 27  2 70  0
 6  0    244 2664636 269332 4595884    0    0    32  5576 53941 67240 26  4 70  0
 8  0    244 2665316 269380 4596720    0    0    40    68 66434 91266 31  4 64  0
 3  0    244 2666780 269404 4597792    0    0    24     0 41862 48055 23  3 74  0



--
- Freddy
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