Re: [PATCH 3/3] perf tools: Check maximum frequency rate for record/top

[David Ahern]

On 11/4/13, 4:06 AM, Jiri Olsa wrote:
> Adding the check for maximum allowed frequency rate
> defined in following file:
>    /proc/sys/kernel/perf_event_max_sample_rate
>
> When we cross the maximum value we fail and display
> detailed error message with advise.

perf commands should automatically adjust the default frequency too. If 
the user did not specify a frequency then this message is going to be 
confusing.

Though the algorithm that keeps lowering the rate should be tweaked as well.

David
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