RE: Linux buffer cache monitoring

From: Allen, Brandon <>
Date: Fri, 25 Jul 2008 13:21:48 -0700
Message-ID: <04DDF147ED3A0D42B48A48A18D574C450CBA98A2@NT15.oneneck.corp>

Hi Henry,

I've never used Direct I/O on Linux, but I'll look into it. I don't see any options with the Orion utility to force it to use direct I/O, but maybe there is a filesystem mount option I can use to force it similar to the cio mount option on AIX.

I considered using raw devices to test too, but my sysadmin is telling me that is difficult/impossible to setup because this is actually a virtual environment, running on top of Win2K8 HyperV, which is one reason why I want to make sure we're getting sufficient IO throughput.


-----Original Message-----

From: Henry Poras []

I forget if it can be used with
Direct I/O.

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-- Received on Fri Jul 25 2008 - 15:21:48 CDT

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