MySQL 5.0.27-max xserve g5 dual run very slow

Hi to all,
I have a very strange problem on my dual G5 xserve running php and mysql5.
I upgrated from mysql 4.01 to mysql 5 5.0.27 and now my server is very slow during queries.
My CPU is always used at 45% by MySQL and I have not too much connections or users at the same time.
I found this link: http://www.shawnhogan.com/2005/10/mysql-problems-on-mac-os-x-server.html that explain something about mysql 5 on xserve.
Is very strange if I reboot mysql it runs normally but after some queries it returns slow again...
Anyone has some idea?
Thank you all
Yorh

I've actually tried all the USB ports and get same results. I went and bought a Sonnet USB2.0 high speed PCI adapter thinking a dedicated controller would help. It was actually slower than the onboard USB2.0 ports. Again, this same drive hooked up to my Windows XP computer performs about 4 times faster.
At this point I've purchased an external SATA card from Sonnet, the Tempo X eSATA 4x4 card. As soon as I get an eSATA cable this sould prove to be a lot better.
I'd sitll like to know if other people get similar poor performance on USB2.0 external drives vs Firewire 400 on the same computer. I stopped buying FW enclosures when it seemed Apple was abandoning firewire on their ipods and there is no Firewire 800 on the macbook pro or intel iMacs.

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munish khanna wrote:
1. upgrade to lion, which should over write previous software and the reasons for it being slow.
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Mail, Server Admin, MySQL running very, very slow

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pterobyte wrote:
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Hi Liu,
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Regards,
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Greetings,
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The depth of this directory is 1. That is:
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dir$
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Chad Matsalla

MySQL 5.0.27-max xserve g5 dual run very slow

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