On Feb 9, 2005, at 10:36 PM, Wade Curry wrote:
On Wed, Feb 09, 2005 at 05:25:02PM -0800, Andrew P. Lentvorski, Jr. wrote:Rattle the disks a little on that Pea Sea and the system performance turns to crud.
I confess to not being _entirely_ sure what you mean here.. may be terminology, or may be lack of familiarity with the hardware.
Run multiple Linux kernel compiles on a standard x86 box. The performance degrades much faster than one would expect given the processor and disk utilization.
The problem is the I/O subsystem. Even today, one can see a significant difference between the performance of an x86 box with an ATA subsystem rather than a SCSI subsystem. And that is a very weak configuration relative to the balancing that goes on when companies make big iron.
Big iron is basically all about transactions per second, not seconds per transaction.
-a
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