Messages in this thread | | | From | Jeff Moyer <> | Subject | Re: [PATCH 2/2] block: create ioctl to discard-or-zeroout a range of blocks | Date | Fri, 18 Mar 2016 11:15:23 -0400 |
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"Theodore Ts'o" <tytso@mit.edu> writes:
> I do think that using TRIM in various causes where we are doing an > fallocate does make sense for non-rotational devices. In general TRIM > should be fast enough that that I'd be surprised that people would be > complaining --- especially since most of the time, fallocate isn't on > the timing-critical path of most applications.
TRIM/UNMAP isn't just supported on solid state devices, though. I do recall some enterprise thinly provisioned storage that would take ages to discard large regions. I think that caused us to change the defaults for mkfs, right?
Cheers, Jeff
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