Re: [PATCH 4/4] writeback: Reporting dirty thresholds in /proc/vmstat

From: KOSAKI Motohiro
Date: Fri Aug 20 2010 - 06:06:46 EST


> The kernel already exposes the user desired thresholds in /proc/sys/vm
> with dirty_background_ratio and background_ratio. But the kernel may
> alter the number requested without giving the user any indication that
> is the case.
>
> Knowing the actual ratios the kernel is honoring can help app developers
> understand how their buffered IO will be sent to the disk.
>
> $ grep threshold /proc/vmstat
> nr_dirty_threshold 409111
> nr_dirty_background_threshold 818223
>
> Signed-off-by: Michael Rubin <mrubin@xxxxxxxxxx>

Looks good to me.
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>



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