On 03/08/2010 08:23 PM, Mitch Trachtenberg wrote:
Hi, I have an application that deals with 100,000 to 1,000,000 image files. I initially structured it to use multiple directories, so that file 123456 would be stored in /12/34/123456. I'm now wondering if that's pointless, as it would simplify things to simply store the file in /123456. Can anyone indicate whether I'm gaining anything by using smaller directories in ext3/ext4? Thanks. Mitch
I think that breaking up your files into subdirectories makes it easier to navigate the tree and find files from a human point of view. Even better if the bytes reflect something like year/month/day/hour/min (assuming your pathname has a date based guid or similar encoding).
You can have a million files in one large directory, but be careful to iterate and copy them in a sorted order (sorted by inode) to avoid nasty performance issues that are side effects of the way we hash file names in ext3/4.
Good luck! Ric _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
