[Buildroot] [PATCH 7/7] automatically set PARALLEL_JOBS when BR2_JLEVEL is 0
Richard Braun
rbraun at sceen.net
Thu Jun 14 08:33:35 UTC 2012
On Thu, Jun 14, 2012 at 01:27:05AM +0200, Arnout Vandecappelle wrote:
> In my experience, you need 2 times the number of CPUs to fully utilize
> the processor because most compilations have long iowait latencies.
Unless you have little memory, this is no longer true, and as some
compilations can eat a lot of memory, doubling their number reduces the
amount of available page cache, potentially increasing the amount of
I/O. Using the number of available processors should be just fine.
--
Richard Braun
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