Intel 170 Servers, AS/400 RISC Server Comparing 571E/574F and 571F/575B IOP and IOPLess, 14.1.6.2

14.1.6 Comparing 571E/574F and 571F/575B IOP and IOPLess

In comparing IOP and IOPLess runs we did not see any significant differences, including the system CPU used. The system we used was a model 570 4 way, on the IOP run the system CPU was 11.6% and on the IOPLess run the system CPU was 11.5%. The 571E/574F and 571F/575B display similar characteristics when comparing IOP and IOPLess environments, so we have chosen to display results from only the 571E/574F.

14.1.6.1		IOP compared to IOPLess
		571E/574F (15 - 35 GB DASD): IOP, RAID-5
(sec)		571E/574F (15 - 35 GB DASD): IOPLess, RAID-5
	0.2
Time
	0.15
Response	0.1
	0.05
System	0
	0	2500	5000	7500	10000
			Workload Throughput

		IOP compared to IOPLess
14.1.6.2		571E/574F (15 - 35 GB DASD): IOP, RAID-5
(ms)		571E/574F (15 - 35 GB DASD): IOPLess, RAID-5
	35
Time
	30
	25
Response
	20
	15
	10
DASD
	5
	0
	0	1000	2000	3000	4000
			Ops/Sec
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008

© Copyright IBM Corp. 2008 Chapter 14 DASD Performance 198