:I now used the tmpfs (I copied the sources on a tmpfs and compiled there)
:and the results are the same. It seems that all processes aren't so CPU
:intensive...they run for a very short period of time.
:
:Mihai
There shouldn't be much of any I/O waiting even with a hard drive
for compilations. Apache (and other) builds are going to be limited
by serialization within the Makefile and /bin/sh sequences which wind
up doing a lot of fork/exec/wait's.
A parallel kernel build without modules is about as close as you
can get to saturating available cpus. Something like:
make -j 12 nativekernel NO_MODULES=TRUE
Once it gets past the initial serialized elements of the build it
will then get into the pure compilation phase with enough files to
make for a good test.
-Matt
