Re: 2.4.17 raid5 checksumming function selection wierdness

From: Dave Jones (davej@suse.de)
Date: Fri Jan 11 2002 - 07:26:29 EST

Next message: David S. Miller: "Re: strange kernel message when hacking the NIC driver"
Previous message: Alan Cox: "Re: [2.4.17/18pre] VM and swap - it's really unusable"
In reply to: Anders Vedmar: "2.4.17 raid5 checksumming function selection wierdness"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Fri, 11 Jan 2002, Anders Vedmar wrote:

> The raid5 code in 2.4.17 seems to select the slowest available
> checksumming function.
> 8regs : 2148.000 MB/sec
> pIII_sse : 1272.000 MB/sec
> raid5: using function: pIII_sse (1272.000 MB/sec)

SSE is favoured due to it avoiding trashing the cache contents.

-- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs

- 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/

Next message: David S. Miller: "Re: strange kernel message when hacking the NIC driver"
Previous message: Alan Cox: "Re: [2.4.17/18pre] VM and swap - it's really unusable"
In reply to: Anders Vedmar: "2.4.17 raid5 checksumming function selection wierdness"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Tue Jan 15 2002 - 21:00:35 EST