Stanley Thomas wrote: > > http://www.debian-administration.org/articles/388
that seems to be a bit random, do people still use 1990's tech to host servers on ? I mean its been about 7 years into this decade why not upgrade the platform a bit.. Anyway, I shall have a xfs/ext3 test for people in a few days time - I hope to get sometime next weekend and will do some numbers. And Ext4 is just around the bend with even more tuneables :) > You pointed out well "with its .ko not loaded". The above comment was > directed towards people doing a fresh install and who wouldnt know how > to disable the loading of particular modules after installation. ok, sorry for not being clear on that one - I meant, what is the performance degradation on the machine with and without the .ko loaded. the clock cycles its going to bite into are trivial at best. but still I'd like to know how you quantified it and exactly how much that was. > on a fresh centos 5 installation these were my results using both > software raid AND lvm on a partition: why would you want to use mdraid and lvm ? lvm already gives you span and mirror. ok, if you want to use a cheap way of doing hot-swap the newer mdraid might come in handy ( I dont know much about this, have not used it ). > /dev/VolGroup00/Dom0Root: > Timing cached reads: 3932 MB in 2.00 seconds = 1965.86 MB/sec > Timing buffered disk reads: 100 MB in 1.66 seconds = 60.41 MB/sec > /dev/sda1: > Timing cached reads: 4076 MB in 2.00 seconds = 2038.65 MB/sec > Timing buffered disk reads: 190 MB in 3.01 seconds = 63.12 MB/sec > > both my partition sizes were identical. Oh and by the way ext3 > partitions both of 'em. you need to basically make sure the drive geometry is identical in both cases, not just the partition size's. also, ext3 is the only filesystem supported by centos-5 at install time :) you need to get xfs post install. Also, things that will make a major difference here are your CPU load levels and the hba being used. Regards, - KB -- Karanbir Singh : http://www.karan.org/ : [EMAIL PROTECTED] _______________________________________________ ilugd mailinglist -- [email protected] http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/[email protected]/
