Brian Szymanski wrote:
Did you try any machines that used Hyperthreading? I'd be interested to
see how those machines fare based on the number of logical and real CPUs.
Although people suggest "-j4" as optimal in general
case, I have come to a very different conclusion:
1) single CPU with enough RAM (2 GHz, 512 MB)
there's no significant speed up in the range
"-j1" to "-j9".
So "-j1" is as good as "-j9".
If you went to all that trouble, you might as well post the numbers :-)
Time unit is minutes.
CPU: 2x800 MHz 2000 MHz 333 MHz
RAM: 1024 MB 512 MB 64 MB
-j --------------------------------
1 99 50 276
2 58 49 291
3 58 50 367
4 57 50 547
5 58 49
6 58 50
7 57 50
8 58 50
9 58 50
Rob.
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