[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [linux-lvm] Testing the new LVM cache feature

On Thu, May 22, 2014 at 02:04:05PM -0400, Mike Snitzer wrote:
> By default dm-cache (as is currently upstream) is _not_ going to cache
> sequential IO, and it also isn't going to cache IO that is first
> written.  It waits for hit counts to elevate to the promote threshold.
> So dm-cache effectively acts as a hot-spot cache by default.

OK, that makes sense, thanks.

I wrote about using the LVM cache feature here:



Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]