Re: Connector: Filesystem Events Connector v3

[Benoit Boissinot]

On 25 Mar 2006 18:16:32 -0500, Greg Stark <gsstark@xxxxxxx> wrote:
>
> yang.y.yi@xxxxxxxxx writes:
>
> > the filesystem events connector is small and has low overhead, it only
> > focuses on activities in the filesystem, so I think it should be an option
> > for those users which just concerns events in the filesystem. audit dose do
> > this, but it is complicated and overhead is big, I believe the filesystem
> > events connector is useful, but it maybe need to be improved further.
>
> Would this be a good tool to tell me why I hear my hard drive stutter
> periodically? This is above the regular buffer flushing.
>
> I'm curious what application is causing this file i/o since I have plenty of
> free RAM so the only reason it would be hitting disk is if something is
> calling fsync gratuitously.
>
blktrace (included at least in -mm) will tell you.

You have to activate BLK_DEV_IO_TRACE and use blktrace from
http://www.kernel.org/pub/linux/kernel/people/axboe/blktrace/

regards,

Benoit
-
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/