Re: SATA in 2.6.17 vs 2.6.15 (x86/ICH6)

[William Thompson <wt@electro-mechanical.com>]

On Fri, Jun 30, 2006 at 05:04:00PM -0400, Lee Revell wrote:
> On Fri, 2006-06-30 at 14:41 -0400, William Thompson wrote:
> > *** I'm not on the list, please always keep me in CC ***
> > 
> > The speed of SATA in 2.6.17 is significantly lower in my test than 2.6.15.
> > 
> > In .15, I would see over 10mb/sec avg writing over 16,000 files (~2.4gb) to a
> > fat32 partition.
> > 
> > In .17, I see it start at 2-3mb/sec and work it's way down to 500kb/sec
> > towards the end.  Even the system is not as responsive (The system's / is a
> > tmpfs which all programs, including /usr, are stored), not even when using
> > ssh.
> > 
> > I used the same .config in .17 as I did with .15 (make oldconfig)
> 
> What does the oprofile output look like for both cases?

Lee, turns out this problem was due to a new option introduced in 2.6.16
that I turned off (Thinking it would save on space).  The option was
CONFIG_SLAB.  Apparently, SLOB is not worth using in my case.  It's a bit
too fat on memory usage.
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