[SLL] limit on number of files in a directory and hashed dir vs. flat dir file access time

Ana christiana at hipointcoffee.com
Tue Nov 6 11:11:25 PST 2007


On Sun, Nov 04, 2007 at 11:28:26AM -0800, Brian Hatch wrote:
...
> To have an apples-to-apples test, you need to
> 
>   * boot into single user mode
>   * run test A
>   * reboot into single user mode
>   * run test B
>   * reboot into single user mode
>   * run test C
>   ...
> 
> This way each run has absolutely no kernel cache to work with, a
> clean footprint at the beginning of each test, and no possibility
> of extraneous processes.
> 
> (Make sure your single user mode doesn't include any network
> setup - some distros do configure eth0/eth1/etc, and in theory
> they could be affected by seeing and handling packets on the NIC,
> such as broadcasts, DHCP renegotiation, etc.)

I will do this when I have some extra time.  Soon though; probably
sometime this week.  I've been thinking about how to automate this
(boot, test, reboot, test...) so I don't have to babysit it.  I always
appreciate suggestions.

- Ana



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