Edward Jaffe wrote:
Ken Porowski wrote:
I thought the z10 4.4GHz chips were the answer to the CPU intensive
issue (but probably not all).
The z10 is is not designed for CPU-intensive work. That is what pSeries
(a RISC processor) is for. Rather, it was designed to dispel the myth
that mainframes are slow.
Too many CIOs -- those that believe what they read in Airline magazines
-- thought that raw GHz was a valid way to compare the performance of
System z to other platforms; real throughput did not matter.
IBM got tired of trying to explain the realities over and over.
I used to explaining it for years, so now I have "answer #1" : Why do
you compare computer (mainframe) to processor? Does it make any sense?
What about SAP *processor* and those in channel card?
It's like comparing Dodge Viper to freight train. Maybe Viper is master
in terms of GHz, but throughput of the train is still out of range. And
now the train got new engine from TGV <g>
Answer #2: Yes, maybe your "Intel Core 2 Duo Quad + Hyper" is faster
when you compute Gamma function or some integral. However my machine
does very simple computations as J.Smith $100 -> J.Smith $102 (add 2%).
And every record need to be read and written, and there are millions of
them.
--
Radoslaw Skorupka
Lodz, Poland
--
BRE Bank SA
ul. Senatorska 18
00-950 Warszawa
www.brebank.pl
Sd Rejonowy dla m. st. Warszawy
XII Wydzia Gospodarczy Krajowego Rejestru Sdowego,
nr rejestru przedsibiorców KRS 0000025237
NIP: 526-021-50-88
Wedug stanu na dzie 01.01.2008 r. kapita zakadowy BRE Banku SA wynosi
118.642.672 zote i zosta w caoci wpacony.
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