i’m evaluating performance of CentOS7
i did tests on CentOS6 x86_64/distro kernel 2.6.32, asterisk 11.16.0
with 500calls (7sec alaw, simple dialplan, pass trough – sipp generators/asterisk receiver with answer/playback)
scenario – sipp generators – asterisk – asterisk receiver (i wrote ansible scenario for this if you are interested)
then i reinstalled system to CentOS7 x86_64/distro kernel 3.10, asterisk 11.20.0 and run the test again
there is big performance hit https://dl.dropboxusercontent.com/u/44105720/context_interrupts.PNG
any ideas what tweaks can help? (it looks like the main problem is in interrupts from network card)
your experience with CentOS7?
any experience with kernel 4.2 from http://elrepo.org/linux/kernel/el7/x86_64/RPMS/ ?