Re: Trace replaying

From: Jens Axboe <jens.axboe_at_oracle.com>
Date: Wed, 22 Aug 2007 20:20:19 +0200

On Thu, Aug 23 2007, Joshua Root wrote:
> Jens Axboe wrote:
> > you need to do something ala
> >
> > # fio --name=replay --filename=/dev/sdb --direct=1 --read_iolog=sdb.bin
> >
> > to replay that IO pattern.
>
> OK, I'm trying this with the latest (git) fio. This command line:
>
> % sudo fio --name=replay --read_iolog=kerncomp.bin --filename=/dev/sdc
>
> Produces only this output:
>
> replay: (g=0): rw=read, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> Starting 1 process
> Jobs: 1 (f=1): [W] [0.0% done] [ 0/ 0 kb/s] [eta 19h:59m:23s]
>
> It actually shows a few thousand kb/s for the first few seconds, but
> then it drops to 0 and the eta just keeps going up.
>
> Using Debian testing on IA64, vanilla 2.6.22.3 kernel.

Can you pass me your kerncomp.bin? Just send it in private.

-- 
Jens Axboe
Received on Wed Aug 22 2007 - 20:20:19 CEST

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