Re: [REPORT] cfs-v4 vs sd-0.44

From: Geert Bosch
Date: Sat Apr 21 2007 - 13:24:35 EST



On Apr 21, 2007, at 12:18, Willy Tarreau wrote:
Also, I believe that (in shells), most forked processes do not even consume
a full timeslice (eg: $(uname -n) is very fast). This means that assigning
them with a shorter one will not hurt them while preserving the shell's
performance against CPU hogs.

On a fast machine, during regression testing of GCC, I've noticed we create
an average of 500 processes per second during an hour or so. There are other
work loads like this. So, most processes start, execute and complete in 2ms.
How does fairness work in a situation like this?

-Geert
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