On 04/21/2010 05:01 PM, Eric Sandeen wrote:
On 04/21/2010 03:44 PM, Greg Freemyer wrote:
Mark's benchmarks showed this as doable in seconds which seems like a
reasonable amount of time for a mount time operation.
All the other things aside, mount-time is interesting, but it's an
infrequent operation, at least in my world. I think we need something
that can be done runtime.
For anything with uptime, I don't think it's acceptable to wait until
the next mount to trim unused blocks.
But as long as the mechanism can be called either at mount time and/or
kicked off runtime somehow, I'm happy.
-Eric
That makes sense to me. Most enterprise servers will go without
remounting a file system for (hopefully!) a very long time.
It is really important to keep in mind that this is not just a laptop
feature for laptop SSD's, this is also used by high end arrays and
*could* be useful for virt IO, etc as well :-)
ric
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