Hi Guys,
We have been facing a very similar issue. I got this with with perf top
tool:
88.18% traffic_server [.]
_Z15write_to_net_ioP10NetHandlerP18UnixNetVConnectionP7EThread
0.32% traffic_server [.] _ZN10NetHandler12mainNetEventEiP5Event
0.30% [kernel] [k] update_sd_lb_stats
0.29% [e1000e] [k] e1000e_check_ltr_demote
0.25% [kernel] [k] __ticket_spin_lock
0.24% traffic_server [.] _ZN7EThread13process_eventEP5Eventi
0.21% [kernel] [k] timerqueue_add
0.17% libc-2.12.so [.] epoll_wait
0.17% libpcre.so.0.0.1 [.] 0x00000000000100dd
0.14% [kernel] [k] __schedule
Any thoughts ?
Best Regards,
Daniel Biazus
On Tue, Jan 6, 2015 at 10:36 PM, Jason J. W. Williams <
[email protected]> wrote:
> Thanks Sudheer. I was thinking maybe there was some built-in
> instrumentation that would help. During the spikes all perf shows me
> as the top calls are:
>
> 9.79% [kernel] [k] _raw_spin_lock
> 9.44% [kernel] [k] find_busiest_group
>
> Which isn't very helpful.
>
> -J
>
--
Daniel Biazus
infrastructure Engineering
Azion Technologies
Porto Alegre, Brasil +55 51 3012 3005 | +55 51 82279032
Miami, USA +1 305 704 8816
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