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VM Guest LAN: QDIO Simulation

z/VM 4.3.0 now supports the ability to create a simulated QDIO adapter (as was done for HiperSockets in z/VM 4.2.0) using Guest LAN function provided by CP.

This section presents and discusses measurement results that assess the performance of Guest LAN QDIO support by comparing it to real OSA GbE adapters (QDIO), Guest LAN HiperSockets, and real HiperSockets.

Methodology:   The workload driver is an internal tool which can be used to simulate such bulk-data transfers as FTP or primitive benchmarks such as streaming or request-response. The data are driven from the application layer of the TCP/IP protocol stack, thus causing the entire networking infrastructure, including the adapter and the TCP/IP protocol code, to be measured. It moves data between client-side memory and server-side memory, eliminating all outside bottlenecks such as DASD or tape.

A client-server pair was used in which the client sent one byte and received 20MB of data (streaming workload); or the client connected to the server, sending 64 bytes to the server, the server responded with 8K and the client then disconnected (connect-request-response workload); or in which the client sent 200 bytes and received 1000 bytes (request-response workload). Additional client-server pairs were added to determine if throughput would vary with an increase of number of connections.

At least 3 measurement trials were taken for each case, and a representative trial was chosen to show in the results. A complete set of runs was done with the maximum transmission unit (MTU) set to 1500 and 8992 for QDIO and Guest LAN QDIO, and 8K and 56K for HiperSockets and Guest LAN HiperSockets.

The measurements were done one a 2064-109 in an LPAR with 2 dedicated processors. The LPAR had 1GB central storage and 2GB expanded storage. CP monitor data was captured during the measurement run and reduced using VMPRF. APAR VM63091, which is on the 4301 Stacked RSU, was applied to pick up performance improvements made for Guest LAN QDIO support.

Figure 1. Environment

Figure 1 shows the measurement environment. All clients communicated with stack TCPIP1 using IUCV. All servers communicated with stack TCPIP2 using IUCV. The two stacks communicated using Guest LAN QDIO, QDIO, Guest LAN HiperSockets or real HiperSockets.

Results:   MB/sec (megabytes per second) or trans/sec (transactions per second) and response time were supplied by the workload driver. All other values are from CP monitor data or derived from CP monitor data.

Total_cpu_util	This field was obtained from the SYSTEM_SUMMARY_BY_TIME VMPRF report. It shows the average of both processors out of 100%.
tcpip_tot_cpu_util	This field is calculated from the USER_RESOURCE_UTILIZATION VMPRF report (CPU seconds, total) for the tcpip1 and tcpip2. 100% is the equivalent of one fully utilized processor.
cpu_msec/MB	This field was calculated from the previous tot_cpu_util divided by the number of megabytes per second to show the number of milliseconds of CPU time per megabyte.
cpu_msec/trans	This field was calculated from the previous tot_cpu_util divided by the number of transactions per second to show the number of milliseconds of CPU time per transaction.

The following tables compare Guest LAN QDIO with QDIO, Guest LAN HiperSockets and real HiperSockets for the streaming, CRR, and RR workloads with 10 clients.

Specific details are mentioned for each workload after the tables for that workload.

Table 1. Throughput - Streaming - 10 clients

runid Connectivity Type MTU	gsn1003 GuestQDIO 1500	qsn10x3 QDIO 1500	hs081001 GuestHipr 8K	rs081002 Real Hipr 8K	gsj1001 GuestQDIO 8992	qsj10x1 QDIO 8992	hs561002 GuestHipr 56K	rs561002 Real Hipr 56K
MB/sec total_cpu_util	46.72 74.20	47.11 82.30	81.69 98.50	108.80 98.60	83.57 99.30	98.14 99.40	91.37 74.70	116.52 85.90
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	67.88 55.76	59.70 60.00	86.67 66.06	83.33 68.79	79.70 75.76	77.58 68.18	64.85 55.15	72.73 62.42
cpu_msec/MB emul_msec/MB cp_msec/MB	31.76 20.33 11.43	29.49 18.91 10.58	24.12 12.98 11.14	18.13 11.64 6.49	23.76 12.37 11.39	20.26 12.37 7.89	16.35 8.21 8.14	14.74 8.55 6.20
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	14.53 8.69 5.84 11.93 7.00 4.93	12.67 9.20 3.47 12.74 8.43 4.31	10.61 3.93 6.68 8.09 4.41 3.67	7.66 4.73 2.92 6.32 3.45 2.87	9.54 4.39 5.15 9.07 3.41 5.66	7.90 4.26 3.64 6.95 3.58 3.37	7.10 2.39 4.71 6.04 3.12 2.92	6.24 3.35 2.86 5.24 2.61 2.63
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

With MTU size of 1500 QDIO did slightly better than Guest LAN QDIO in both throughput and efficiency (CPU_msec/MB). With MTU size of 8K or 8992, Guest LAN QDIO is similar to Guest HiperSockets, QDIO and real HiperSockets.

Table 2. Throughput - CRR - 10 clients

runid Connectivity Type MTU	gcn1002 GuestQDIO 1500	qcn10x3 QDIO 1500	hc081002 GuestHipr 8K	rc081002 Real Hipr 8K	gcj1003 GuestQDIO 8992	qcj10x3 QDIO 8992	hc561002 GuestHipr 56K	rc561002 Real Hipr 56K
trans/sec total_cpu_util	81.80 55.90	85.76 56.10	82.91 60.80	85.05 60.40	85.52 58.30	84.30 61.50	89.72 59.10	88.04 59.00
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	95.33 4.67	94.00 4.67	88.00 20.67	88.00 22.00	91.33 15.33	90.00 21.33	89.33 18.67	90.00 18.00
cpu_msec/trans emul_msec/trans cp_msec/trans	13.67 12.91 0.76	13.43 12.62 0.81	14.67 13.89 0.77	14.20 13.62 0.59	13.63 13.00 0.63	14.59 13.97 0.62	13.17 12.57 0.60	13.40 12.88 0.52
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	11.65 11.49 0.16 0.57 0.33 0.24	10.96 10.81 0.16 0.54 0.31 0.23	10.61 10.45 0.16 2.49 2.25 0.24	10.35 10.27 0.08 2.59 2.43 0.16	10.68 10.52 0.16 1.79 1.56 0.23	10.68 10.52 0.16 2.53 2.37 0.16	9.96 9.81 0.15 2.08 1.86 0.22	10.22 10.07 0.15 2.04 1.89 0.15
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Again, with MTU size of 1500, QDIO did slightly better than Guest LAN QDIO. However with similar size MTU (8K or 8992), Guest LAN QDIO is more efficient, and gets slightly better throughput, than the other three cases. This is an example of simulation of a device not costing more than the real device.

Table 3. Throughput - RR - 10 clients

runid Connectivity Type MTU	grn1001 GuestQDIO 1500	qrn10x1 QDIO 1500	hr081003 GuestHipr 8K	rr081003 Real Hipr 8K	grj1003 GuestQDIO 8992	qrj10x3 QDIO 8992	hr561001 GuestHipr 56K	rr561001 Real Hipr 56K
trans/sec total_cpu_util	2138.17 98.50	2169.16 94.20	2188.28 99.00	2332.76 99.10	2176.10 98.80	2021.99 95.00	2249.09 98.80	2309.78 99.00
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	44.00 43.33	36.67 36.67	43.33 43.33	40.67 40.67	44.00 44.00	36.00 36.00	43.33 43.33	41.33 40.67
cpu_msec/trans emul_msec/trans cp_msec/trans	0.92 0.62 0.30	0.87 0.62 0.25	0.90 0.62 0.29	0.85 0.61 0.24	0.91 0.61 0.30	0.94 0.68 0.26	0.88 0.60 0.28	0.86 0.62 0.24
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.21 0.09 0.12 0.20 0.09 0.11	0.17 0.09 0.08 0.17 0.09 0.08	0.20 0.09 0.08 0.17 0.09 0.08	0.17 0.09 0.08 2.59 2.43 0.16	0.20 0.09 0.11 0.20 0.09 0.11	0.18 0.09 0.08 0.18 0.09 0.08	0.19 0.09 0.10 0.19 0.09 0.10	0.18 0.10 0.08 0.18 0.10 0.08
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Results for an MTU size of 1500 were similar to the previous two workloads. Results for similar MTU (8K or 8992) show Guest LAN QDIO performance that is similar to the other three cases.

The complete results are summarized in the following tables (showing all workloads and all client-server pairs).

A few runs (not shown) were done on a 2064-109 in an LPAR with 3 dedicated processors to see what effect another engine would have. The tests were done with QDIO and real HiperSockets and showed a dramatic improvement in throughput with 1, 5 and 10 clients and matching throughput for 20 clients. The CPU_msec/MB results were approximately the same as for the 2-processor runs. This confirmed our suspicion that, with 2 processors, there were times when one or more of the participating virtual machines were waiting on CPU, even though the averages did not show we were using all the CPU cycles.

Table 4. QDIO - Streaming

Number of clients runid MTU 1500	01 qsn01x2	05 qsn05x2	10 qsn10x3	20 qsn20x2
MB/sec response time (msec) total_cpu_util	42.02 475.98 57.90	46.74 2142.49 76.20	47.11 4262.10 82.30	46.09 8694.61 88.70
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	43.94 45.76	56.67 56.97	59.70 60.00	61.52 62.73
cpu_msec/MB emul_msec/MB cp_msec/MB	27.56 20.37 7.19	32.61 24.13 8.47	34.94 25.73 9.21	38.49 28.25 10.24
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	10.46 7.64 2.81 10.89 7.57 3.32	12.12 8.88 3.24 12.19 8.30 3.89	12.67 9.20 3.47 12.74 8.43 4.31	13.35 9.60 3.75 13.61 8.74 4.87
runid MTU 8992	qsj01x1	qsj05x1	qsj10x1	qsj20x1
MB/sec response time (msec) total_cpu_util	95.52 209.38 86.40	97.22 1028.50 97.10	98.14 2038.36 99.40	87.80 4563.48 99.00
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	60.91 63.03	70.30 68.18	77.58 68.18	78.48 65.45
cpu_msec/MB emul_msec/MB cp_msec/MB	18.09 10.99 7.10	19.98 12.28 7.69	20.26 12.37 7.89	22.55 13.90 8.66
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	6.38 3.36 3.01 6.60 3.46 3.14	7.23 3.83 3.40 7.01 3.68 3.34	7.90 4.26 3.64 6.95 3.58 3.37	8.94 4.87 4.07 7.45 3.66 3.80
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 5. QDIO - CRR

Number of clients runid MTU 1500	01 qcn01x2	05 qcn05x2	10 qcn10x3	20 qcn20x2
trans/sec response time (msec) total_cpu_util	68.84 14.52 51.30	80.50 62.11 55.70	85.76 116.60 56.10	82.21 243.29 56.10
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	87.33 4.67	94.00 4.67	94.00 4.67	93.33 4.67
cpu_msec/trans emul_msec/trans cp_msec/trans	14.90 14.03 0.87	13.84 13.09 0.75	13.43 12.62 0.81	13.65 12.94 0.71
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	12.69 12.49 0.19 0.68 0.39 0.29	11.68 11.51 0.17 0.58 0.33 0.25	10.96 10.81 0.16 0.54 0.31 0.23	11.07 10.91 0.16 0.55 0.32 0.24
runid MTU 8992	qcj01x1	qcj05x3	qcj10x3	qcj20x2
trans/sec response time (msec) total_cpu_util	75.34 13.27 60.50	85.05 58.79 60.00	84.30 118.62 61.50	82.55 242.27 57.40
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	79.17 33.33	87.33 21.33	90.00 21.33	92.67 4.67
cpu_msec/trans emul_msec/trans cp_msec/trans	16.06 15.42 0.64	14.11 13.47 0.63	14.59 13.97 0.62	13.91 13.03 0.87
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	10.51 10.40 0.11 4.42 4.20 0.22	10.27 10.03 0.24 2.51 2.35 0.16	10.68 10.52 0.16 2.53 2.37 0.16	11.23 10.98 0.24 0.57 0.32 0.24
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 6. QDIO - RR

Number of clients runid MTU 1500	01 qrn01x3	05 qrn05x1	10 qrn10x1	20 qrn20x3
trans/sec response time (msec) total_cpu_util	1001.73 1.00 47.20	2198.87 2.27 96.90	2169.16 4.61 94.20	1864.28 10.73 79.30
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	21.33 21.33	40.00 40.00	36.67 36.67	28.67 28.00
cpu_msec/trans emul_msec/trans cp_msec/trans	0.94 0.65 0.29	0.88 0.63 0.25	0.87 0.62 0.25	0.85 0.62 0.23
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.21 0.12 0.09 0.21 0.12 0.09	0.18 0.10 0.08 0.18 0.10 0.08	0.17 0.09 0.08 0.17 0.09 0.08	0.15 0.08 0.08 0.15 0.08 0.08
runid MTU 8992	qrj01x1	qrj05x3	qrj10x3	qrj20x1
trans/sec response time (msec) total_cpu_util	988.24 1.01 47.60	2093.29 2.38 97.00	2021.99 4.94 95.00	1725.07 11.59 86.90
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	22.00 21.33	40.00 39.33	36.00 36.00	29.33 28.67
cpu_msec/trans emul_msec/trans cp_msec/trans	0.96 0.67 0.30	0.93 0.66 0.26	0.94 0.68 0.26	1.01 0.75 0.26
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.22 0.12 0.10 0.22 0.12 0.09	0.19 0.10 0.09 0.19 0.10 0.09	0.18 0.09 0.08 0.18 0.09 0.08	0.17 0.09 0.09 0.17 0.08 0.09
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 7. Guest LAN QDIO - Streaming

Number of clients runid MTU 1500	01 gsn0101	05 gsn0503	10 gsn1003	20 gsn2003
MB/sec response time (msec) total_cpu_util	60.35 331.39 80.10	51.41 2130.46 75.80	46.72 6748.96 74.20	41.09 15390.66 73.10
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	73.64 67.27	70.61 58.48	67.88 55.76	63.03 53.64
cpu_msec/MB emul_msec/MB cp_msec/MB	26.55 16.67 9.88	29.49 18.91 10.58	31.76 20.33 11.43	35.58 22.93 12.66
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	12.20 7.28 4.92 11.15 6.73 4.42	13.73 8.25 5.48 11.38 6.84 4.54	14.53 8.69 5.84 11.93 7.00 4.93	15.34 9.22 6.12 13.05 7.37 5.68
runid MTU 8992	gsj0102	gsj0502	gsj1001	gsj2002
MB/sec response time (msec) total_cpu_util	92.74 215.66 82.90	100.02 999.84 98.80	83.57 2393.79 99.30	72.22 5539.92 98.80
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	67.27 69.39	80.91 80.30	79.70 75.76	79.70 72.42
cpu_msec/MB emul_msec/MB cp_msec/MB	17.88 8.76 9.12	19.76 9.84 9.92	23.76 12.37 11.39	27.36 14.65 12.71
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	7.25 3.23 4.02 7.48 2.88 4.61	8.09 3.67 4.42 8.03 3.03 5.00	9.54 4.39 5.15 9.07 3.41 5.66	11.04 5.37 5.66 10.03 3.69 6.34
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 8. Guest LAN QDIO - CRR

Number of clients runid MTU 1500	01 gcn0102	05 gcn0502	10 gcn1002	20 gcn2002
trans/sec response time (msec) total_cpu_util	76.08 13.14 55.20	83.58 59.82 56.80	81.80 122.25 55.90	80.35 248.93 56.20
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	79.33 18.67	94.00 6.00	95.33 4.67	94.67 4.67
cpu_msec/trans emul_msec/trans cp_msec/trans	14.51 13.28 1.24	13.59 12.66 0.93	13.67 12.91 0.76	13.99 13.22 0.77
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	10.43 10.08 0.35 2.45 2.02 0.44	11.25 11.01 0.24 0.72 0.40 0.32	11.65 11.49 0.16 0.57 0.33 0.24	11.78 11.62 0.17 0.58 0.33 0.25
runid MTU 8992	gcj0102	gcj0502	gcj1003	gcj2001
trans/sec response time (msec) total_cpu_util	73.91 13.53 62.00	87.61 57.07 58.50	85.52 116.94 58.30	82.13 243.52 58.50
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	73.33 40.00	89.33 18.00	91.33 15.33	92.00 14.67
cpu_msec/trans emul_msec/trans cp_msec/trans	16.78 15.69 1.08	13.35 12.72 0.64	13.63 13.00 0.63	14.25 13.64 0.61
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	9.92 9.56 0.36 5.41 5.05 0.36	10.20 9.97 0.23 2.05 1.83 0.23	10.68 10.52 0.16 1.79 1.56 0.23	11.20 11.04 0.16 1.79 1.62 0.16
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 9. Guest LAN QDIO - RR

Number of clients runid MTU 1500	01 grn0101	05 grn0502	10 grn1001	20 grn2003
trans/sec response time (msec) total_cpu_util	1158.25 0.86 52.20	2156.14 2.32 99.20	2138.17 4.67 98.50	1982.01 10.09 91.20
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	28.67 28.67	46.67 46.67	44.00 43.33	34.67 34.67
cpu_msec/trans emul_msec/trans cp_msec/trans	0.90 0.58 0.32	0.92 0.61 0.31	0.92 0.62 0.30	0.92 0.65 0.27
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.25 0.12 0.13 0.25 0.12 0.13	0.22 0.10 0.12 0.22 0.10 0.12	0.21 0.09 0.12 0.20 0.09 0.11	0.17 0.08 0.09 0.17 0.08 0.09
runid MTU 8992	grj0101	grj0501	grj1003	grj2001
trans/sec response time (msec) total_cpu_util	1165.89 0.86 52.40	2158.08 2.31 99.30	2176.10 4.59 98.80	2014.65 9.92 89.50
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	29.33 29.33	46.67 46.67	44.00 44.00	34.00 34.00
cpu_msec/trans emul_msec/trans cp_msec/trans	0.90 0.58 0.32	0.92 0.61 0.31	0.91 0.61 0.30	0.89 0.63 0.26
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.25 0.12 0.13 0.25 0.12 0.13	0.22 0.10 0.12 0.22 0.10 0.12	0.20 0.09 0.11 0.20 0.09 0.11	0.17 0.08 0.09 0.17 0.08 0.09
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 10. Guest LAN HiperSockets - Streaming

Number of clients runid MTU 8K	01 hs080101	05 hs080502	10 hs081001	20 hs082003
MB/sec response time (msec) total_cpu_util	46.31 431.90 52.70	87.98 1136.92 98.80	81.69 2450.18 98.50	76.42 5249.40 97.30
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	46.67 38.79	88.48 68.79	86.67 66.06	84.24 62.73
cpu_msec/MB emul_msec/MB cp_msec/MB	22.76 12.14 10.62	22.46 11.87 10.59	24.12 12.98 11.14	25.46 14.05 11.41
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	10.08 3.86 6.22 8.38 4.71 3.66	10.06 3.65 6.41 7.82 4.34 3.48	10.61 3.93 6.68 8.09 4.41 3.67	11.02 4.24 6.78 8.21 4.40 3.81
runid MTU 56K	hs560101	hs560501	hs561002	hs562002
MB/sec response time (msec) total_cpu_util	5.24 3814.20 3.30	58.72 1744.83 51.80	91.37 2245.39 74.70	111.54 3622.69 91.90
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	2.73 2.42	45.15 38.79	64.85 55.15	79.70 67.27
cpu_msec/MB emul_msec/MB cp_msec/MB	12.60 6.49 6.11	17.64 8.96 8.69	16.35 8.21 8.14	16.48 8.34 8.14
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	5.20 1.73 3.47 4.63 2.31 2.31	7.69 2.68 5.01 6.61 3.46 3.15	7.10 2.39 4.71 6.04 3.12 2.92	7.15 2.45 4.70 6.03 3.12 2.91
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 11. Guest LAN HiperSockets - CRR

Number of clients runid MTU 8K	01 hc080103	05 hc080502	10 hc081002	20 hc082002
trans/sec response time (msec) total_cpu_util	71.89 13.91 61.90	84.92 58.87 58.20	82.91 120.61 60.80	80.68 247.90 60.70
tcpip_2tot_cpu_util tcpip1_tot_cpu_util	76.00 38.67	87.33 18.67	88.00 20.67	90.00 19.33
cpu_msec/trans emul_msec/trans cp_msec/trans	17.22 16.39 0.83	13.71 13.07 0.64	14.67 13.89 0.77	15.05 14.34 0.69
tcpip_2cpu_msec/trans tcpip_2vcpu_msec/trans tcpip_2ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	10.57 10.29 0.28 5.38 5.10 0.28	10.28 10.13 0.16 2.20 2.04 0.16	10.61 10.45 0.16 2.49 2.25 0.24	11.16 10.99 0.17 2.40 2.23 0.17
runid MTU 56K	hc560101	hc560502	hc561002	hc562003
trans/sec response time (msec) total_cpu_util	77.98 13.03 63.00	90.25 55.43 59.10	89.72 111.74 59.10	87.62 231.83 59.70
tcpip_2tot_cpu_util tcpip1_tot_cpu_util	72.67 44.00	86.00 22.00	89.33 18.67	89.17 20.00
cpu_msec/trans emul_msec/trans cp_msec/trans	16.16 15.36 0.80	13.10 12.50 0.60	13.17 12.57 0.60	13.63 13.06 0.57
tcpip_2cpu_msec/trans tcpip_2vcpu_msec/trans tcpip_2ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	9.32 9.15 0.17 5.64 5.39 0.26	9.53 9.38 0.15 2.44 2.22 0.22	9.96 9.81 0.15 2.08 1.86 0.22	10.18 10.08 0.10 2.28 2.09 0.19
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 12. Guest LAN HiperSockets - RR

Number of clients runid MTU 8K	01 hr080101	05 hr080503	10 hr081003	20 hr082001
trans/sec response time (msec) total_cpu_util	1181.15 0.84 50.40	2102.09 2.38 99.40	2188.28 4.57 99.00	2030.54 9.85 94.20
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	26.67 26.67	44.00 43.33	43.33 43.33	37.33 37.33
cpu_msec/trans emul_msec/trans cp_msec/trans	0.85 0.57 0.28	0.95 0.65 0.29	0.90 0.62 0.29	0.93 0.65 0.28
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.23 0.12 0.11 0.23 0.12 0.11	0.21 0.10 0.11 0.21 0.10 0.11	0.20 0.09 0.11 0.20 0.09 0.11	0.18 0.09 0.10 0.18 0.09 0.10
runid MTU 56K	hr560102	hr560501	hr561001	hr562001
trans/sec response time (msec) total_cpu_util	1203.37 0.83 50.50	2249.50 2.22 99.30	2249.09 4.44 98.80	2114.04 9.46 91.60
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	27.33 26.67	45.33 45.33	43.33 43.33	36.00 36.00
cpu_msec/trans emul_msec/trans cp_msec/trans	0.84 0.56 0.28	0.88 0.60 0.28	0.88 0.60 0.28	0.87 0.61 0.26
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.23 0.12 0.11 0.22 0.12 0.11	0.20 0.09 0.11 0.20 0.09 0.11	0.19 0.09 0.10 0.19 0.09 0.10	0.17 0.08 0.09 0.17 0.08 0.09
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 13. HiperSockets - Streaming

Number of clients runid MTU 8K	01 rs080101	05 rs080503	10 rs081002	20 rs082001
MB/sec response time (msec) total_cpu_util	41.45 482.47 34.90	105.67 946.89 91.50	108.80 1839.06 98.60	102.10 3929.42 99.30
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	29.39 25.45	77.58 65.45	83.33 68.79	83.64 66.36
cpu_msec/MB emul_msec/MB cp_msec/MB	16.84 10.62 6.22	17.32 11.02 6.30	18.13 11.64 6.49	19.45 12.67 6.78
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	7.09 4.31 2.78 6.14 3.36 2.78	7.34 4.50 2.84 6.19 3.38 2.81	7.66 4.73 2.92 6.32 3.45 2.87	8.19 5.13 3.06 6.50 3.50 3.00
runid MTU 56K	rs560103	rs560501	rs561002	rs562002
MB/sec response time (msec) total_cpu_util	37.52 533.04 26.10	88.41 1141.63 64.80	116.52 1784.76 85.90	131.17 3119.22 96.30
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	22.12 19.39	54.85 47.58	72.73 62.42	81.82 68.79
cpu_msec/MB emul_msec/MB cp_msec/MB	13.91 8.05 5.86	14.66 8.46 6.20	14.74 8.55 6.20	14.68 8.60 6.08
tcpip2_cpu_msec/MB tcpip2_vcpu_msec/MB tcpip2_ccpu_msec/MB tcpip1_cpu_msec/MB tcpip1_vcpu_msec/MB tcpip1_ccpu_msec/MB	5.90 3.15 2.75 5.17 2.67 2.50	6.20 3.32 2.88 5.38 2.71 2.67	6.24 3.35 2.89 5.36 2.68 2.68	6.24 3.37 2.86 5.24 2.61 2.63
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 14. HiperSockets - CRR

Number of clients runid MTU 8K	01 rc080101	05 rc080503	10 rc081002	20 rc082002
trans/sec response time (msec) total_cpu_util	73.83 13.54 63.20	86.57 57.75 58.80	85.05 117.58 60.40	82.27 243.12 60.10
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	76.67 40.67	88.00 20.00	88.00 22.00	90.00 19.33
cpu_msec/trans emul_msec/trans cp_msec/trans	17.12 16.50 0.62	13.58 13.03 0.55	14.20 13.62 0.59	14.61 14.00 0.61
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	10.38 10.29 0.09 5.51 5.33 0.18	10.17 10.01 0.15 2.31 2.16 0.15	10.35 10.27 0.08 2.59 2.43 0.16	10.94 10.86 0.08 2.35 2.19 0.16
runid MTU 56K	rc560102	rc560502	rc561002	rc562003
trans/sec response time (msec) total_cpu_util	74.42 13.43 64.00	89.08 56.17 59.10	88.04 113.93 59.00	85.40 235.91 59.20
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	75.33 42.67	87.33 20.67	90.00 18.00	90.00 18.00
cpu_msec/trans emul_msec/trans cp_msec/trans	17.20 16.47 0.73	13.27 12.73 0.54	13.40 12.88 0.52	13.86 13.30 0.56
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	10.12 9.94 0.18 5.73 5.55 0.18	9.80 9.65 0.15 2.32 2.17 0.15	10.22 10.07 0.15 2.04 1.89 0.15	10.54 10.38 0.16 2.11 1.95 0.16
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

Table 15. HiperSockets - RR

Number of clients runid MTU 8K	01 rr080101	05 rr080503	10 rr081003	20 rr082002
trans/sec response time (msec) total_cpu_util	1962.96 0.51 82.20	2346.05 2.13 99.40	2332.76 4.28 99.10	2193.04 9.11 93.70
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	36.67 36.67	42.00 42.00	40.67 40.67	35.33 35.33
cpu_msec/trans emul_msec/trans cp_msec/trans	0.84 0.59 0.24	0.85 0.61 0.24	0.85 0.61 0.24	0.85 0.62 0.23
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.19 0.11 0.08 0.19 0.11 0.08	0.18 0.10 0.08 0.18 0.10 0.08	0.17 0.09 0.08 0.17 0.09 0.08	0.16 0.08 0.08 0.16 0.08 0.08
runid MTU 56K	rr560102	rr560501	rr561001	rr562001
trans/sec response time (msec) total_cpu_util	1942.90 0.51 82.70	2318.29 2.15 99.40	2309.78 4.32 99.00	2154.46 9.28 92.00
tcpip2_tot_cpu_util tcpip1_tot_cpu_util	38.00 37.33	42.67 42.67	41.33 40.67	34.67 34.00
cpu_msec/trans emul_msec/trans cp_msec/trans	0.85 0.60 0.25	0.86 0.61 0.24	0.86 0.62 0.24	0.85 0.62 0.23
tcpip2_cpu_msec/trans tcpip2_vcpu_msec/trans tcpip2_ccpu_msec/trans tcpip1_cpu_msec/trans tcpip1_vcpu_msec/trans tcpip1_ccpu_msec/trans	0.20 0.11 0.09 0.19 0.11 0.09	0.18 0.10 0.08 0.18 0.10 0.08	0.18 0.10 0.08 0.18 0.10 0.08	0.16 0.08 0.08 0.16 0.08 0.08
Note: 2064-109; z/VM 4.3.0 with 64-bit CP; TCP/IP 430; APAR VM63091

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