Re: High CPU usage (up to server hang) under heavy I/O load

[Mark Watts]

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> Is your raid controller 64bit capable ? If you can I'd also go to a 2.6
> kernel for anything > 1Gb, and definitely > 4Gb of RAM. The differences
> are astounding although if your PCI I/O hardware cant do 64bit access
> your box will suck whatever kernel 8)

Would this also mean that if I stick a 64bit SATA raid card (a 3Ware 8506-4LP 
in this case) into a 32bit pci slot, then I/O is always going to suck badly?

... cos I do, and I/O sucks :)

Mark.

- -- 
Mark Watts
Senior Systems Engineer
QinetiQ Trusted Information Management
Trusted Solutions and Services group
GPG Public Key ID: 455420ED

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