Re: Default zone_reclaim_mode = 1 on NUMA kernel is bad forfile/email/webservers

From: Christoph Lameter
Date: Tue Sep 28 2010 - 08:49:49 EST


On Tue, 28 Sep 2010, Bron Gondwana wrote:

> Is this what's happening, or is IO actually coming from disk in preference
> to the remote node? I can certainly see the logic behind preferring to
> reclaim the local node if that's all that's happening - though the OS should
> be allocating the different tasks more evenly across the nodes in that case.

Not sure about the disk. I did not see anything that would indicate and
issue with only being able to do 32 bit and I am no expert on the device
driver operations.

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