Re: pdflush and dm-crypt

From: Jens Axboe
Date: Mon Mar 29 2004 - 10:04:21 EST

On Mon, Mar 29 2004, Zoltan NAGY wrote:
> Hi!
> I've just upgraded the system to 2.6.5-rc2-bk6, and I'm using
> dm-crypt. It's a heavily used server, on average 20-30mbit/sec
> traffic is on the wire 7/24, and just noticed, that the load is very
> high. In every 4-5 sec pdflush takes a lot of cpu... Is this
> intentional? I've found a similar question on kerneltrap
> (, but havent found a solution
> yet. I'm just wondering if it is a problem, or it's the normal
> behavior? It's a 1.8 P4 with 1G ram and highmem enabled, with 256 bit
> aes thru dm-crypt.

Try the -mm kernels intead, should have lots better behaviour for
pdflush/dm interactions.

Jens Axboe

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