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Date: Thu, 11 Oct 2001 10:46:35 +0200
To: Rik van Riel <riel@conectiva.com.br>
From: Lorenzo Allegrucci <lenstra@tiscalinet.it>
Subject: Re: [CFT][PATCH] smoother VM for -ac
Cc: <kernelnewbies@nl.linux.org>, <linux-mm@kvack.org>,
        <linux-kernel@vger.kernel.org>, Alan Cox <alan@lxorguk.ukuu.org.uk>
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 onectiva>
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At 17.25 10/10/01 -0300, Rik van Riel wrote:
>Please test this patch and tell Alan and me how it works for
>you and whether there are loads where the system performs
>worse with this patch than without...

qsbench results,


Linux-2.4.10-ac9:

lenstra:~/src/qsort> time ./qsbench -n 90000000 -p 1 -s 140175100
seed = 140175100
71.370u 2.560s 3:17.94 37.3%    0+0k 0+0io 11773pf+0w
lenstra:~/src/qsort> time ./qsbench -n 90000000 -p 1 -s 140175100
seed = 140175100
71.760u 3.170s 4:02.93 30.8%    0+0k 0+0io 15487pf+0w
lenstra:~/src/qsort> time ./qsbench -n 90000000 -p 1 -s 140175100
seed = 140175100
71.090u 3.080s 4:07.94 29.9%    0+0k 0+0io 15856pf+0w
kswapd CPU time: 0:23


Linux-2.4.10-ac9 + Rik's smooth patch:

lenstra:~/src/qsort> time ./qsbench -n 90000000 -p 1 -s 140175100
seed = 140175100
71.090u 6.260s 3:21.65 38.3%    0+0k 0+0io 12868pf+0w
lenstra:~/src/qsort> time ./qsbench -n 90000000 -p 1 -s 140175100
seed = 140175100
72.460u 6.030s 3:58.10 32.9%    0+0k 0+0io 14637pf+0w
lenstra:~/src/qsort> time ./qsbench -n 90000000 -p 1 -s 140175100
seed = 140175100
71.630u 7.400s 4:00.86 32.8%    0+0k 0+0io 14894pf+0w
kswapd CPU time: 0:21



-- 
Lorenzo

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