Hi,
when i switch the journal to the OSD Disk seperate partiton on each disk
(/dev/sdX1 for journal 1GB and /dev/sdX2 for OSD) i go down from 23.000
iops to 200 iops random 4k.
Greets,
Stefan
Am 22.11.2012 13:50, schrieb Sébastien Han:
journal is running on tmpfs to me but that changes nothing.
I don't think it works then. According to the doc: Enables using
libaio for asynchronous writes to the journal. Requires journal dio
set to true.
On Thu, Nov 22, 2012 at 12:48 PM, Stefan Priebe - Profihost AG
<s.priebe@xxxxxxxxxxxx> wrote:
Am 22.11.2012 11:49, schrieb Sébastien Han:
@Alexandre: cool!
@ Stefan: Full SSD cluster and 10G switches?
Yes
Couple of weeks ago I saw
that you use journal aio, did you notice performance improvement with it?
journal is running on tmpfs to me but that changes nothing.
Stefan
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