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wf_writebuf
2008 Mar 23
1
[PATCH] allow to change the block size used to handle sparse files
In some filesystems, typically optimized for large I/O throughputs (like
IBM GPFS, IBM SAN FS, or distributed filesystems in general) a lot of
lseek() operations can strongly impact on performances. In this cases it
can be helpful to enlarge the block size used to handle sparse files
directly from a command line parameter.
For example, using a sparse write size of 32KB, I've been able to