I recently ran a transaction processing benchmark on a Sequent
'Quad': 4 Pentium Pro 180MHz processors, 1GB memory. The system
was running the a 2.4-test4 kernel with Rik van Riel's recent
VM patches. Database software was DB2 version v6.1.
I have attached a copy kernel profile output during this run.
Data seems to suggest that scheduler changes would be beneficial.
Note that I am not a database person. Therefore, no tuning was
performed to optimize DB performance. I simply used an existing
kit as an interesting workload.
Mike Kravetz mkravetz@...
IBM Linux Technology Center
15450 SW Koll Parkway T/L 775-3494
Beaverton, OR 97006-6063 (503)578-3494