From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alireza Haghdoost <alireza@cs.umn.edu>
Subject: Re: Inject I/O latency for RAID5/6 read and writes
Date: Thu, 12 Mar 2015 16:31:36 -0500
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On Mon, Feb 23, 2015 at 12:32 PM, Alireza Haghdoost <alireza@cs.umn.edu> wrote:
> I needed to inject I/O completion latency in the RAID5/6 codes for
> test purpose. I was wondering where would be the good place in
> md/raid5.c code to add delay ?
>
> So far I have tried adding mdelay/udelay in raid5_end_write_request()
> and it seems it works to increase I/O completion of writes. However,
> adding delay in raid5_end_read_request() does not really change the
> read I/O latency. Any idea ?
>
> --Alireza

Can Some one help me on this issue ?