xfs
[Top] [All Lists]

Re: does having ~Ncore+1? kworkers flushing XFS to 1 disk improve throug

To: Linda Walsh <xfs@xxxxxxxxx>
Subject: Re: does having ~Ncore+1? kworkers flushing XFS to 1 disk improve throughput?
From: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>
Date: Fri, 23 Aug 2013 23:07:48 -0500
Cc: xfs-oss <xfs@xxxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <52181B69.6060707@xxxxxxxxx>
References: <52181B69.6060707@xxxxxxxxx>
Reply-to: stan@xxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8
On 8/23/2013 9:33 PM, Linda Walsh wrote:

> So what are all the kworkers doing and does having 6 of them
> do things at the same time really help disk-throughput?
> 
> Seems like they would conflict w/each other, cause
> disk contention, and extra fragmentation as they
> do things?  If they were all writing to separate
> disks, that would make sense, but do that many kworker
> threads need to be finishing out disk I/O on 1 disk?

https://raw.github.com/torvalds/linux/master/Documentation/workqueue.txt

-- 
Stan


<Prev in Thread] Current Thread [Next in Thread>