CPW ratings for Power11 servers

When the IBM Power11 servers were announced, July 8, several people contacted me if I had the CPW rating for the new servers.

What is CPW? It is a number that is frequently mentioned, but I have never seen its definition. After some digging I found the following:

The CPW, Commercial Processing Workload, rating provides a measure to show how on-line transactions processing, OLTP, workloads perform on systems that run IBM i. The CPW rating is built using workloads that can utilize the full processing power of the system.

Below is a summary of the Power11 CPW. I have included the top of range Power10 equivalent too, its column is gray.

Model	No. cores	GHz	LPAR size No. cores	CPW
S1022	40	2.45 - 3.9	4	104,700
S1122	8	3.6 - 4.0	8	236,400
S1122	20	3.05 - 4.0	4	123,400
S1122	32	3.0 - 4.2	4	123,800
S1122	48	2.65 - 4.15	4	123,800
S1122	60	2.4 - 3.95	4	117,100

Model	No. cores	GHz	LPAR size No. cores	CPW
S1024	24	2.75 - 3.9	48	947,500
S1124	16	3.4 - 4.2	16	433,200
S1124	32	3.4 - 4.2	32	823,000
S1124	48	3.05 - 4.15	48	1,118,500
S1124	60	2.8 - 3.95	60	1,345,900

Model	No. cores	GHz	LPAR size No. cores	CPW
E1080	240	3.55 - 4.0	60	5,266,000
E1180	40	3.9 - 4.2	40	1,049,100
E1180	80	3.9 - 4.2	40	2,098,300
E1180	120	3.9 - 4.2	40	3,147,500
E1180	160	3.9 - 4.2	40	4,196,600
E1180	48	3.9 - 4.4	48	1,290,000
E1180	96	3.9 - 4.4	48	2,580,100
E1180	144	3.9 - 4.4	48	3,870,200
E1180	192	3.9 - 4.4	48	5,160,300
E1180	64	3.8 - 4.3	64	1,572,800
E1180	128	3.8 - 4.3	64	3,145,600
E1180	192	3.8 - 4.3	64	4,718,400
E1180	256	3.8 - 4.3	64	6,291,200

You can find more details, including the CPW ratings for the IBM Power8 to Power11, here. The CPW information is in Section 3, pages 21 - 24.

I have also found another Redbook about Power11 which I would like to share too: IBM Power11 Scale-Out Servers: Introduction and Overview