Bruce Dubbs wrote: > I did some testing tonight using the environment variable > MAKEFLAGS=-j2.
I assume you have a dual-core CPU -- have you tried -j3? Any higher? I see full CPU usage on both cores with -j3, although I haven't looked at that with -j2. I *believe* -j2 will leave part of the available CPU time unused on two cores. (I believe this because compilation is both CPU- and I/O-bound, each at a different point in the process. If a single make job is writing to the disk, it obviously isn't using one of the available CPUs. Allowing a third job to run will *usually* provide something else that's able to use the CPU at those times.) (Although that third job does tend to move around between cores a bit. Depending on your processor's cache setup, this might negate some or all of the benefit...) If you haven't tried it, though, this probably isn't worth doing another whole run to see what happens. I'm just curious if you've seen whether -j3 helps any more. :-)
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