On Fri, Jan 18, 2008 at 02:18:50PM -0800, [EMAIL PROTECTED] wrote: > Just kidding. My actual question is, should I put any thought into > where on the disk I place the swap partition? At the beginning of the > disk? At the end? I thought it might be best to have it at the > beginning, immediately followed by root, and with other partitions > after that. My thinking was that most reads and writes would occur in > root - and probably near the start of the root partition. So having > the swap partition close by would reduce seek time by a couple of pico > seconds - which should translate to thousands of nanocents per year. >
I think that with modern disks and bad block replacment, you can't place blocks at the "beginning" or "end" in a physical sense. At best, assuming that the head doesn't have to seek, the data flow from the drive is, what, 40 MB/s? Compare that with the speed of memory and the placment on the drive is meaningless. If you use swap that much, add more ram. I have my swap on an encrypted LV on raid1. I have /tmp as tmpfs. There should be very few writes to the root fs, but lots of reads from /lib (and /usr/lib). Reads from /usr can be quits slow and still be acceptable, just look at the performance of live CDs. Doug. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
