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Old 09-15-2004, 10:35 AM   #1
eqxro
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Registered: Apr 2004
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Recommended filesystem


I'm at the end of my patience here... It takes me more than 10 minutes to do a ls on a directory that contains a lot of files (actually, I have a local mirror of the Mandrake Cooker). Right now it's on a FAT32 filesystem, and a simple example... The main directory contains around 3473 files summing up 3.291 gigs of data. The size of the directory (non-recursive, as in the size of the directory entries) are well over half a meg. The contrib contains even more files.

In the situation that I have that folder shared in DC++ and I recreate my cache every 8 hours, it takes 15 minutes just to read the Cooker. Can anyone point me to a good filesystem (preferably a linux one like ext2/3,reiser,XFS) that I can use w/o loosing too much data due to cluster waste (4K) on a 15/20 Gig partition?
 
Old 09-15-2004, 12:33 PM   #2
rjlee
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I have some experience of vfat, ext2 and reiserfs, and I've read about ext3. Here's my tuppenny's worth:

If you choose ext2 (or ext3, which is ext2 with an added hidden journel file) then you can choose the cluster (inode) size when you do the format. The lower the size, the less waste per file (but the bigger the inode tables; these should still be smaller than the FAT tables you've got now).

It will certainly perform a lot better than FAT32 if space is tight, because it doesn't suffer from so many problems with fragmentation.

ext2, ext3 and Reiserfs will all list files relatively quickly, owing to the fact that they store the filename (along with the file's meta-information) with the directory rather than the file itself. As I recall, so will nearly anything other than a FAT partition.

I would definitely tend to avoid FAT32, FAT16 and NTFS here (and tmpfs/romfs which store everything in memory!).

Go for ext2 in preference to ext3 or ReiserFS unless you want journelling support (i.e. must faster filesystem checks in the event of a crash or other forced unmount).

There may also be a specialist filesystem better suited to your needs. I'd be looking for something that stores files in segments rather than clusters if wasted space is really a problem.
 
Old 09-15-2004, 02:00 PM   #3
eqxro
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I'd go for reiser myself, but i don't know if there won't be some down sides to the fact that is a 20 gigs partition.
 
  


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