On 6/4/12 7:34 AM, Tomasz Paszkowski wrote:
On Mon, Jun 4, 2012 at 2:28 PM, Mark Nelson<mark.nelson@xxxxxxxxxxx> wrote:
For syncfs support, upgrade to a distro with glibc 2.13+ (ie precise). I've
noticed a significant improvement in our spinning disk performance going
from oneiric and kernel 3.3 to precise and kernel 3.4. I think part of this
is related to the raid drivers for the cards we have in our test boxes
though. I'm actually recording blktrace and seekwatcher results for all of
our tests to specifically look at syncs and disk seek behavior...
Correct me if I'am wrong. But AFAIR precise in running 3.2 kernel.
Sorry, I should have been more clear. We were running oneiric with our
own kernel 3.3 build and are now running precise with our own kernel 3.4
build (available on gitbuilder.ceph.com).
Mark
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