Re: SMP buildworld times / performance tests

[Andy Farkas]

On Wed, 29 Mar 2000, Matthew Dillon wrote:

> time make -j 20 buildworld    build FreeBSD-current using 4.0 kernel
> 
>     4745.607u 1673.646s 1:29:07.45 120.0%   1323+1599k 8237+251565io 1615pf+0w
> 
> time make -j 20 buildworld    build FreeBSD-current using 5.0 kernel
> 
>     4696.987u 1502.278s 1:10:34.17 146.4%   1359+1641k 10889+4270io 1779pf+0w

Can I ask why is there a huge difference in the number of io (251k vs 4k)?
What is so different between 4.0 and 5.0 that causes this?

--
 
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        Andy Farkas
    System Administrator
   Speednet Communications
 http://www.speednet.com.au/
  




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