So in a 'normal' IDE environment it probably wont make a difference.
Regarding your test, I'd say don't trust your results unless you have rebootet the machine betweeen the tests, otherwise the cache will mess up your results.
Kind regards,
Alex.
Rob wrote:
Laurence Sanford wrote:
Rob wrote:
----------------------------------------
With these simple tests, I come to the conclusion that "make -j$n buildworld" is best with n = number of CPUs. Does that make sense?
Rob.
This is what I've been telling people and using myself for years. However, I've been shot down on this several times, so I just leave everyone alone and let them do their own thing. You and I will be getting it done a little faster though.
Not really faster, but higher values do not make a difference, well, as long as the extra processes do not force the use of swap. Intensified swapping because of a high -j value slows down the build considerably.
I don't understand why this is reason for debate. My test has obvious results on various of my PCs, and was very quickly done: I wrote a script with a loop that built the world again and again, doing a 'touch' to a file immediately before and after the build. Got all my data within a day or so.
Rob.
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