Messages in this thread | | | Date | Tue, 8 Mar 2016 18:37:09 +0100 | From | Ingo Molnar <> | Subject | Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer |
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* Dmitry Vyukov <dvyukov@google.com> wrote:
> > fomalhaut:~/go/src/github.com/google/syzkaller> ps aux | grep -i syz > > mingo 1374 0.0 0.0 118476 2376 pts/2 S+ 18:23 0:00 grep --color=auto -i syz > > > > and with no kernel messages in dmesg - and with a fully functional system. > > > > I'm running the 16-task load on a 120 CPU system - should I increase it to 120? > > Does the code expect to saturate the system? > > No, it does not expect to saturate the system. Set "procs" to 480, or > something like that.
Does not seem to help much:
fomalhaut:~> vmstat 10 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st
1 0 0 257465904 219940 4736092 0 0 0 102 16022 4396 0 1 99 0 0 2 0 0 257452144 220496 4755052 0 0 2 3649 14286 4627 0 1 99 0 0 2 0 0 257473408 221188 4770824 0 0 15 1898 17175 4474 0 1 99 0 0
Only around 1% system utilization. Should I go for 1,000 or more? :)
Peter, do you experience with running syz-kaller on larger CPU count Intel systems?
Thanks,
Ingo
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