Re: IBM will announce two new System i models, 515 and 525 on Apr. 10.

On 4/10/07, Mike Cunningham <mcunning@xxxxxxx> wrote:

I am curious where are you getting the 8000+ CPW (commercial processing
workload) rating for a PC?

just guessing. Whatever the equivalence is, the Xeon doubled in speed
last year by cranking up the clock and doubling the number of cores.

CPW is not the same as CPU speed. I do know
my model 520 with 3,800 CPW rating running lots of concurrent services
and applications will outperform a quad-core PC server running just MS
SQL Server. We have an application that runs on a PC and makes
connections to both DB2 and MSSQL and reads data from both and the 520
responds quicker that the PC server.

depends on the workload, no? I was working with journals and large
database tables on a 570 last year and the system was incredibly fast.
But then SQL CLI code I wrote ran very slow. And the calls from a web
app to sql procedures on the 570 could have been faster. I have
written XML parsing code for both .NET and the i5. the .NET code runs
many times faster.

-Steve