Messages in this thread | | | Date | Fri, 03 Apr 2009 04:35:10 -0400 | From | Jeff Garzik <> | Subject | Re: Linux 2.6.29 |
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Jeff Garzik wrote: > Attached are some additional tests using sync_file_range, dd, an SSD and > a normal SATA disk. The test program -- overwrite.c -- is unchanged > from my last posting, basically the same as Linus's except with > posix_fadvise()
Oh, and, as run-test.sh shows, these tests were done with the file pre-allocated and sync'd to disk.
The dd and overwrite invocations that follow the first dd invocation do /not/ require the fs to allocate new blocks.
Jeff
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