Messages in this thread |  | | Date | Thu, 18 Oct 2001 12:57:15 -0700 | From | "Brian C. Thomas" <> | Subject | severe performance degradation on serverworks with high mem |
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Hi
I have a Supermicro S2QR6 board, which has the "Serverworks serverset III HE" chipset. (Also, i have 8GB RAM, 4 Xeon P3 700MHz processors, and an Adaptec Ultra160 SCSI system - aix7xxx, built onto the motherboard)
In all the 2.4.x series kernels (even up to 2.4.12-ac3 or 2.4.13-pre4), as soon as the high memory, 64GB option is enabled, the server slows down to a crawl, with no load showing. (A "crawl" example is a kernel recompile time going from ~5 min to >2 hr!)
I have tried numerous kernel config options, removing scsi support, networking, and have narrowed the problem down to the serverworks chipset- on a SC440NX mb, also with 8GB and everything else in the system, all the new kernels work with no slowdown.
I've tried... kernels: 2.4.1, 2.4.3, 2.4.5, 2.4.7-ac9, 2.4.9, 2.4.12 (-pre4, -ac3) with and w/o mtrr support kernel config
Any ideas?
Thanks,
BCT
____________________________ Brian C. Thomas bcthomas@nature.berkeley.edu - 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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