Re: [PATCH] Seperate read and write statistics of in_flightrequests

From: Jens Axboe
Date: Mon Aug 24 2009 - 07:07:43 EST


On Mon, Aug 24 2009, Nikanth Karthikesan wrote:
> Currently, there is a single in_flight counter measuring the number of
> requests in the request_queue. But some monitoring tools would like to know
> how many read requests and write requests are in progress. Split the current
> in_flight counter into two seperate counters for read and write.
>
> This patch is based on a patch from Mark Landis <mark.landis@xxxxxxxxxxxx>

With fear of stating the obvious, this changes the output format of the
exported stat files. This can/will break existing tools.

--
Jens Axboe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/