Re: Epic regression in throughput since v2.6.23

From: Serge Belyshev
Date: Tue Sep 08 2009 - 15:20:28 EST


Jeff Garzik <jeff@xxxxxxxxxx> writes:

> You will almost certainly see idle CPUs/threads with "make -jN_CPUS"
> due to processes waiting for I/O.

Just to clarify: I have excluded all I/O effects in my plots completely
by building completely from tmpfs. Also, before each actual measurment
there was a thrown-off "pre-caching" one. And my box has 8GB of RAM.
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