From: Zlatko Calusic <Zlatko.Calusic@CARNet.hr>
To: "Eric W. Biederman" <ebiederm+eric@ccr.net>
Cc: linux-mm@kvack.org, linux-kernel@vger.rutgers.edu
Subject: Re: Swap File improvement.
Date: 31 Dec 1998 17:53:15 +0100 [thread overview]
Message-ID: <87af04l0ck.fsf@atlas.CARNet.hr> (raw)
In-Reply-To: ebiederm+eric@ccr.net's message of "25 Dec 1998 14:18:50 -0600"
Eric wrote:
> The following patch allows asynchronous swapping to swap files,
> improving their performance immensely.
>
> Additionally since now all swapping goes there brw_page, the semantics are much
> cleaner, and we don't need to maintain ll_rw_swap_file.
Great!
I tested your changes in 2.2.0-pre1 and I'm astonished with a
performance change.
Before, swap files (unlike swap partitions) were not usable at all,
that is, speed was abysmal. With your changes swap files now perform
at about 80% of swap partition performance, exactly as I was
expecting.
Very good work, indeed.
Happy New Year to you and yours!
Happy New 1999. to all the Linux hackers!
--
Zlatko
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prev parent reply other threads:[~1998-12-31 16:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-12-25 20:18 Eric W. Biederman
1998-12-31 16:53 ` Zlatko Calusic [this message]
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