On Fri, May 18, 2001 at 10:19:49AM +0300, Eli Marmor wrote:
> As a service for the confused reader, who may wonder what's the big deal,
> after all it was not a long time ago when Mandrake released their 8.0 and
> Linus released 2.4.3 (the version included with 8.0), let me add the
> following notes, about the large improvements of the latest AC of 2.4.4
> over 2.4.3:
> 
> 1. Much faster, thanks to a major optimization of the way fork-exec is
>    implemented.

IIRC, that feature's effects on the scheduler were not considered properly, 
and you could get all kinds of undesired scheduling behavior under 2.4.3, 
such as unresponsive processes and the like, and Linus reverted it in 2.4.4.

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