From: Henrique de Moraes Holschuh
Date: Tue Dec 02 2008 - 10:27:20 EST

On Mon, 01 Dec 2008, Andreas Dilger wrote:
> - do the applications writing to this file have any unusual IO pattern
> (e.g. mmap IO, lots of write+truncate+write on the same file, etc)

Vuze does a massive ammount of sparse writes. It can also be configured to
pre-allocate space (either by creating an empty non-sparse file, or by
telling the kernel that the file is expected to grow to size foo and to
please pre-allocate that in the filesystem. I don't recall how this is

"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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