Re: Re: Minutes from 10/1 LSE Call

Steven Pratt <slpratt <at> austin.ibm.com> wrote:
>
> Get the latest rawread from 
> http://www-124.ibm.com/developerworks/opensource/linuxperf/rawread/rawread.html

Sigh, I was afraid of that.  My previous outings with rawread have not been
happy.  Maybe your detailed descriptions will help.

> But as long as I have your attention, there is one other thing about 
> these runs which bothers me, which is that the mm tree is doing horribly 
> on 1k and 2k block sizes.  I looks like readahead is not functioning 
> properly for these requst sizes.

There are several problems with readahead under specific circumstances.  I
need to have a session with it.

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