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From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: Tomasz Chmielewski <mangoo@wpkg.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: thousands of kworker processes with 4.7.x and 4.8-rc*
Date: Sun, 25 Sep 2016 19:21:12 +0200	[thread overview]
Message-ID: <1474824072.3990.11.camel@gmail.com> (raw)
In-Reply-To: <b3cc8ad938677b304b19fdee1e2612e2@admin.virtall.com>

On Sun, 2016-09-25 at 21:40 +0900, Tomasz Chmielewski wrote:

> The problem is the allocator.
> 
> -CONFIG_SLUB=y
> +CONFIG_SLAB=y
> 
> 
> With SLUB, I'm getting a handful of kworker processes, as expected.
> 
> With SLAB, I'm getting thousands of kworker processes.
> 
> 
> Not sure if that's expected behaviour or not.

I seriously doubt 1500+ kworkers piling up is expected.

4.7.0-rc4       47
4.7.0-rc5       1592

Presuming you didn't switch to SLAB and/or change userspace all around
while testing, that would still indicate a kernel regression lurking
between rc4 and rc5.

	-Mike

  reply	other threads:[~2016-09-25 17:21 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-19  7:08 Tomasz Chmielewski
2016-09-23 13:23 ` Tomasz Chmielewski
2016-09-23 14:10   ` Mike Galbraith
2016-09-23 16:15     ` Tomasz Chmielewski
     [not found]       ` <a08b61cee6c43de99ac3c6a8cacfdc04@admin.virtall.com>
2016-09-25 12:40         ` Tomasz Chmielewski
2016-09-25 17:21           ` Mike Galbraith [this message]
2016-09-25 18:22             ` Mike Galbraith
2016-09-25 19:07           ` Nikolay Borisov
2016-09-27  3:49             ` Tomasz Chmielewski

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