linux-kernel - Re: workqueue thing

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Date:	Mon, 21 Dec 2009 12:33:01 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Tejun Heo <tj@...nel.org>, torvalds@...ux-foundation.org,
	awalls@...ix.net, linux-kernel@...r.kernel.org, jeff@...zik.org,
	mingo@...e.hu, akpm@...ux-foundation.org, rusty@...tcorp.com.au,
	cl@...ux-foundation.org, dhowells@...hat.com, avi@...hat.com,
	johannes@...solutions.net
Subject: Re: workqueue thing

>> Also the nice thing about dynamically sizing the thread pool
>> is that if something bad (error condition that takes long) happens
>> in one work queue for a specific subsystem there's still a chance
>> to make process with other operations in the same subsystem.
>
> yup
> same is true for hitting some form of contention; just make an extra thread
> so that the rest can continue.

If you dynamically increase you can/should as well dynamically shrink too.
And with some more gimmicks you're nearly at what Tejun is proposing

Not sure what you're arguing against?

-Andi
>

-- 
ak@...ux.intel.com -- Speaking for myself only.
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