On Thursday February 16 2006 16:10, [EMAIL PROTECTED] wrote: > Alexander Skwar <[EMAIL PROTECTED]> wrote: > > Hm, as I said before - have a look at LVM. It makes > > life *SO* much easier. I don't quite get, why people > > still do the old style partitioning. > > Correct me if I am wrong, but with lvm you do not have > control over physical placement of your partitions. Right?
No, wrong, I am sorry :-D You might let LVM choose where to put the extends for a newly created logical volume, but you might also tell LVM where to put it. > So if you use lvm even for swap, lvm might place it anywhere > on disk, on the beginning (first cylinders, highest speed, > i.e. ~50 MB/s) or at the end (in my case ~30 MB/s). You can tell LVM to put it wherever you want, see above. > Utilities like hdtach (win-world, I do not know something > equivalent for linux) show, that read/write speed is not > constant over the whole disk (number of sectors on outside > cylinders is much higher, than on the inside cylinders). Correct, but then - does the performance of your system really depend on the speed of your swap device? If so, consider upgrading RAM. You will *never* get swap devices so fast that it is really pleasurable to work with them. > In some cases it might matter to partition disk wisely, > for example when someone is doing tv/video grabbing, he > needs maximum transfer speed to avoid frame-dropping, so > it might be worth putting /home or /tmp somewhere near > beginning of disk (outside cylinders). Similar for swap, > plus optimising of head-movement, etc... Again, see above. Regards Martin -- Dipl. Wirtsch.Inf.(Univ.) Martin Eisenhardt Otto-Friedrich-Universität Bamberg Fakultät Wirtschaftinformatik und Angewandte Informatik Lehrstuhl für Medieninformatik D-96045 Bamberg fon: +49 (951) 863-2856 fax: +49 (951) 863-2852 www: http://www.mneisen.org
pgpsmF2p3QUtq.pgp
Description: PGP signature
