Re: [RFC] [PATCH] 2.5.35 patch for making DIO async

From: Benjamin LaHaise (bcrl@redhat.com)
Date: Wed Sep 18 2002 - 06:51:03 EST


On Tue, Sep 17, 2002 at 02:03:02PM -0700, Badari Pulavarty wrote:
> Hi Ben,
>
> Here is a 2.5.35 patch to make DIO async. Basically, DIO does not
> wait for io completion. Waiting will be done at the higher level
> (same way generic_file_read does).

This looks pretty good. Andrew Morton has had a look over it too and
agrees that it should go in after a bit of testing. Does someone want
to try comparing throughput of dio based aio vs normal read/write? It
would be interesting to see what kind of an effect pipelining aios makes
and if there are any performance niggles we need to squash. Cheer,

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



This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:22 EST