On 02/23/2010 10:10 PM, Wu Fengguang wrote:
Use 512kb max readahead size, and 32kb min readahead size. The former helps io performance for common workloads. The latter will be used in the thrashing safe context readahead.
CC: Jens Axboe<jens.axboe@xxxxxxxxxx> CC: Chris Mason<chris.mason@xxxxxxxxxx> CC: Peter Zijlstra<a.p.zijlstra@xxxxxxxxx> CC: Martin Schwidefsky<schwidefsky@xxxxxxxxxx> CC: Paul Gortmaker<paul.gortmaker@xxxxxxxxxxxxx> CC: Matt Mackall<mpm@xxxxxxxxxxx> CC: David Woodhouse<dwmw2@xxxxxxxxxxxxx> Tested-by: Vivek Goyal<vgoyal@xxxxxxxxxx> Tested-by: Christian Ehrhardt<ehrhardt@xxxxxxxxxxxxxxxxxx> Acked-by: Christian Ehrhardt<ehrhardt@xxxxxxxxxxxxxxxxxx> Signed-off-by: Wu Fengguang<fengguang.wu@xxxxxxxxx>
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