Re: EIO AP-1680 ATA133 RAID PCI Controller

[Gregory Leblanc <gleblanc@linuxweasel.com>]

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It's really impolite to send encrypted mail to the list.  Anyone to whom
the message is encrypted won't be able to read it

On Wed, 2003-02-12 at 07:36, Maurice Hilarius wrote:
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[snip]

> With regards to your message at 02:16 PM 2/11/03, Gregory Leblanc.
> Where you stated:
> While the performance of RAID 5 using software RAID is generally far
> superior to that provided by hardware RAID, host CPU usage can be
> -quite- high in high-load situations.  The benchmarks recently posted
> had cpu usage numbers at over 90% on most sequeential writes and
> reads.
> 	Greg
> 
> Naturally. There is no such thing as a free lunch.
> Look at it this way:
> If you have X amount of data to write, and it takes half as long, but
> uses 30% more CPU, you are ahead of the game..

The formatting of this message is all wonky, sorry about it being
confusing.  Anyway, I agree, except that I have no numbers to back up
the CPU use differences, or the MB/sec differences.  Without them, any
claims are pretty silly to try to make.
	Greg

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