On Saturday, December 7, 2002, at 03:55 AM, Ben Hines wrote:
I'd be interested in seeing the reasoning there - because it's certainly not what I have experienced in the past (on other platforms) or now (nor can I see how it can be the case). Which apple list are you referring to - I'll go search the archives.
According to Jim Magee (i believe) on the apple list, in his experience -j2 (I think he actually suggested -j3) helps even on single processor systems.
Yup - which is only one product in apples line (and a high-end professional product too), and only in for the past 6 months. So the overwhelming majority of users will be on single cpu boxes.I would highly doubt many users systems would be dual processor (let alone 4-way, which would be needed for -j4), so I really wonder why developers are using theseEvery power mac sold (for the past 6 months) is dual processor. Its an all-dual lineup.
Hmm....at the moment I have 1 cc1plus process thats got a 120M virtual set size. No wonder my box was grinding trying to run 4 of them (I've only got 256M of phys mem).Sorry for being so blunt about this, but I've just had my powerbook grind to a halt a couple of times and I finally figured out that this was the problem (I was building qt3, and one c++ compile process takes up enough memory as it is - with 4 I was down to only 17% actual cpu usage and about 10000 page in/outs per second, which is useless).Yeah, it is annoying when that happens. I was annoyed too when my system slowed down. I think Ben removed the high -j numbers already from the new kde packages.
Regards,
Chris
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