On Jun 9, 2004, at 16:25, James Bucanek wrote: > Kevin Stevens wrote on Wednesday, June 9, 2004: >> Yeah, I'm calling 'shenanigans'. This same OS version runs on an >> iBook >> with 256MB of ram and half the VM, but when it is loaded on a G5 with >> 1.5GB, just the applications that run on system startup require >> almost 5GB >> of VM? Yet after running Photoshop and other memory intensive apps, >> it >> hasn't increased any further? I'm sorry, I just don't buy it. >> There's >> gotta be some automatic sizing and automatic swap file creation stuff >> going on without regard to actual memory use. > > There is, and it's really complex. I've had parts of it explained to > me -- and those just made my head hurt. Some of it is predictive, in > that the VM manager tries to pre-allocate swap space for reduced > response time when it's actually needed. If you have plenty of disk > space, why do you care how much swap space is allocated? Generally, because there doesn't seem to be rhyme or reason to it; specifically, because I didn't believe your take about applications having requesting it. I'm an engineer, I like things to make sense. (shrug) > Do you think it's slowing your system down? Let's say that I'm massively unconvinced that it's paying its way. ;) But we've strayed pretty far from syslogd locking the system up. KeS