parallel booting init in C - even larger speedup
lists at olivier.pk.wau.nl
Mon Nov 14 12:07:43 UTC 2005
Olaf van der Spek wrote:
> Isn't an IO bottleneck 'solved' by using readahead?
> And even without readahead, generating IO requests earlier means the
> HDD may be able to serve them in a more efficient order.
but you need also more context switches, which increases the overhead.
So the maximum speedup is expected when you boot an IO-bound and a
CPU-bound process in parallel.
More information about the initscripts-ng-devel