Re: [PATCH v2 5/5] KVM: MMU: lower the aduit frequency

Avi Kivity
2010-09-01T09:06:45Z

On 08/31/2010 05:27 AM, Xiao Guangrong wrote:
>
>> I've always seen progress from the guest while running with audit
>> enabled (its slow, but its not supposed to be fast anyway).
>>
>> Did you experience a freeze?
>>
> There is a simply test in the guest if it's not rate limit:
>
> # time ls
> anaconda-ks.cfg Documents install.log Music Public Videos
> Desktop Downloads install.log.syslog Pictures Templates
>
> real 1m26.053s
> user 0m0.311s
> sys 0m1.813s
>
> 'ls' command cost about 1.5 minute, if we run the memory test program, i think
> the time/delay is unacceptable...... :-(

Marcelo, would making the ratelimit optional help? personally I think
without ratelimit audit is useless, and with ratelimit it is a lot less
useful but can still point out problems. But I haven't used it in a while.

--
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