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Re: Tuning XFS for real time audio on a laptop with encrypted LVM

To: xfs@xxxxxxxxxxx
Subject: Re: Tuning XFS for real time audio on a laptop with encrypted LVM
From: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>
Date: Sat, 22 May 2010 17:13:46 -0500
In-reply-to: <AANLkTimf1CjF3c2QL22lfElVZWMETi987YjMEiT76MMb@xxxxxxxxxxxxxx>
References: <AANLkTilJD2Jfr4W97BiAlyc_7C9jLEhEzuEWSDyVKXYP@xxxxxxxxxxxxxx> <20100521041415.GW8120@dastard> <4BF62766.8070105@xxxxxxxxxxxxxxxxx> <AANLkTinobXUKRN0s_3Ia-5XBix05Tvhp36K5fUsysjh-@xxxxxxxxxxxxxx> <4BF68E74.8040305@xxxxxxxxxxxxxxxxx> <AANLkTimf1CjF3c2QL22lfElVZWMETi987YjMEiT76MMb@xxxxxxxxxxxxxx>
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Pedro Ribeiro put forth on 5/22/2010 7:21 AM:

> Hi,
> results are attached. There appears to be no difference between any of
> the schedulers.

That's a bit more... thorough than what we need, and makes digesting it and
making comparisons difficult.  Can you make just 4 runs, one with each
elevator, on /dev/sda with 64 threads and post results?  I saw some
outrageously high numbers in your data due to caching of that tiny 337MB
/dev/sda partition.

Also, can you show confirmation of the elevator change between each run?

Thanks.

-- 
Stan

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