Mailinglist Archive: opensuse-factory (422 mails)

[Hans Petter Jansson <hpj@xxxxxxxxxx>]

On Mon, 2009-01-26 at 09:17 +0000, Michael Meeks wrote:

>       * do you take the moblin route:
>               + of running preload asynchronously at the lowest
>                 I/O priority
>               + of growing /sys/proc/sda/queue/nr_requests to
>                 1024+ [ supposedly so the fairness code works ;-)

By the way, I guess this isn't as effective if you only have one or two
processes blocking on reads - won't they have only one outstanding
request each at any given time?

Readahead notwithstanding, has anyone tried to make apps that need to
read lots of small files, read each in a separate thread simultaneously
to maximize the elevator benefits (thinking especially about GConf here
- AFAIK it's currently serializing concurrent requests)?

Relatedly, I'm packaging sreadahead in devel:playground:fastboot now -
the kernel-source package in there has the requisite kernel patch.

-- 
Hans Petter

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