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
next prev parent 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 thousands of kworker processes with 4.7.x and 4.8-rc* 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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