Messages in this thread | | | Date | Thu, 6 Jul 2006 14:56:06 -0400 | From | William Thompson <> | Subject | Re: SATA in 2.6.17 vs 2.6.15 (x86/ICH6) |
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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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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