Re: Ext2fs and fragments??

David S. Miller (davem@jenolan.rutgers.edu)
Thu, 20 Feb 1997 14:05:49 -0500


From: alan@lxorguk.ukuu.org.uk (Alan Cox)
Date: Thu, 20 Feb 1997 18:32:30 +0000 (GMT)

No, fragments are mostly an odd BSD idea. Modern systems don't need
fragments so much as they tend to use a smaller block size, but
aggressively work to write/read big contiguous blocks and lay files
out accordingly

Asynchronous pre-allocation of extremely large contiguous portions of
the block space, enabled via fcntl on a file or ioctl on the
superblock, sounds like a nice feature to add to ext2 at some point.
This is how some vendors are able to guarentee filesystem response
times.

---------------------------------------------////
Yow! 11.26 MB/s remote host TCP bandwidth & ////
199 usec remote TCP latency over 100Mb/s ////
ethernet. Beat that! ////
-----------------------------------------////__________ o
David S. Miller, davem@caip.rutgers.edu /_____________/ / // /_/ ><