Re: suggestions for postgresql setup on Dell 2950 , PERC6i controller
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Title: Re: suggestions for postgresql setup on Dell 2950 , PERC6i controller
One thing to note, is that linux’s md sets the readahead to 8192 by default instead of 128. I’ve noticed that in many situations, a large chunk of the performance boost reported is due to this alone.
On 2/18/09 12:57 AM, "Grzegorz Jaśkiewicz" <gryzman@xxxxxxxxx> wrote:
have you tried hanging bunch of raid1 to linux's md, and let it do
raid0 for you ?
I heard plenty of stories where this actually sped up performance. One
noticeable is case of youtube servers.
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