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10.4: Move swap files to another drive
Interesting, I'm not having any issues with my relocated swap in Tiger. I'm using the same process that we worked out for Panther.
10.4: Move swap files to another drive
To maximize performance: you typically want your swap/vm to be on the fastest part of the HD, and you want your vm files to be unfragmented. You can accomplish this by partitioning your boot drive into two partitions, the first (the first partition is faster) for vm/swap, and the second for your boot disk.
10.4: Move swap files to another drive
On the hardware side, more RAM should always be your first upgrade, so you can avoid VM swapping as much as possible. Faster spinning HDs (more Rpm) with more lanes for traffic (more MBps) are also a good upgrade (although they can get expensive) so that when you do swap, at least it won't take as long. Besides, with a faster HD, everything is faster, from boot-up, to app launch, to file reads, to file writes.
10.4: Move swap files to another drive
Just keep in mind that the performance you might gain from having a VM partition on the same physical drive as your OS, as far as not having fragmented files, is (probably) lost by the drive head having to travel farther.
10.4: Move swap files to another drive
Forgive me, but I'm not following you. How would reading a non-continuous stream of data be just as fast as reading a continuous stream?
10.4: Move swap files to another drive
I'm not sure where you have come up with the idea of having 5x RAM as a size for your VM partition. I have always read that 2x RAM is ideal.
10.4: Move swap files to another drive
10.3 methods didn't work for me in 10.4. If one looks at the previous 'Hint' on this subject, the 10.3 methods didn't work in 10.4 for other people, either. That hint described moving the swap code to the end of /etc/rc, after the drives had a chance to mount, but also after a slew of other processes started without the benefit of virtual memory. I didn't like the idea of extensively editing /etc/rc, it's much cleaner to insert one line into /etc/rc, that does nothing if the helper file /etc/rc.swapfile isn't present.
10.4: Move swap files to another drive
uhh... just looked in my /etc/ directory, and I found some interesting "rc" files:
That one that is censored starts with an f and rhymes with duck. Anyone else have this kind of variety in their etc folder?
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