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Re: [buildd] Machines upgraded



Hi,

On Mon, 17 Dec 2007, Ingo Juergensmann wrote:

> I've upgraded the following machines lately to kernel 2.6.23-m68k and
> etch-m68k: 

You might want to test 2.6.22 as well. The new scheduler hasn't exactly 
been an improvement for us, here are some lmbench numbers:

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------------------
Host                 OS  2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                         ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ------ ------ ------ ------ ------ ------- -------
sodom     Linux 2.6.22-   52.4  125.9  123.5  158.8  153.6   174.8   153.6
sodom     Linux 2.6.22-   49.9  142.4  126.5  158.5  156.8   176.6   152.9
sodom     Linux 2.6.22-   50.2  128.6  129.5  170.0  158.9   168.9   151.5
sodom     Linux 2.6.22-   58.7  120.5  124.8  160.8  161.8   162.6   148.5
sodom     Linux 2.6.22-   51.1  133.3  123.2  167.6  155.1   174.2   146.8
sodom     Linux 2.6.23-  112.0  176.6  159.8  256.9  216.4   268.8   242.1
sodom     Linux 2.6.23-  112.4  177.5  164.8  259.5  232.5   263.9   240.9
sodom     Linux 2.6.23-  114.0  184.1  187.8  263.6  215.6   278.8   242.0
sodom     Linux 2.6.23-  106.8  206.8  169.2  253.6  217.0   263.5   237.9
sodom     Linux 2.6.23-  114.5  184.4  173.5  271.5  226.2   268.5   246.9
sodom     Linux 2.6.23-  133.1  212.0  187.5  283.9  300.2   294.0   260.6
sodom     Linux 2.6.23-  131.6  200.8  194.5  286.9  248.5   299.4   280.7
sodom     Linux 2.6.23-  134.6  215.5  233.8  267.2  261.5   303.1   287.4
sodom     Linux 2.6.23-  137.4  196.9  240.2  257.7  267.8   289.4   262.1
sodom     Linux 2.6.23-  133.3  206.6  189.8  280.1  269.8   297.9   267.6

The last 5 are lmbench runs started with nice.

bye, Roman


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