On Wed, 25 Mar 2009, howard chen wrote: >> If you turn on directory hashing it scales better but eventually >> performance will still tank. You can use tune2fs to see how it is set and >> change it if necessay. > > Yes, but I want to know if any testings was performed before? This made me curious as well, but apart from an rather old benchmark[0] I found nothing recent. I wrote a small benchmark script that will touch, cat, rm a large amount of files in/from a single directory. The script is currently still running, trying to create 10M files on a 4GB partition; the results so far: http://nerdbynature.de/bench/sid/2009-03-26/di-b.log.txt http://nerdbynature.de/bench/sid/2009-03-26/ (dmesg, .config, JFS oops, benchmark script) However, the correct answer is of course: do these tests with your applicaton and see if these results really match. And publish your results :) Christian. [0] http://lwn.net/Articles/14631/ -- Bruce Schneier found the inverse of the constant zero function. _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
