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Telnet

Workload: CMS1 with External TPNS:  

Hardware Configuration:   

Processor model:            2064-109 LPAR
Processors used:            2 dedicated
Storage:
    Real:                   1GB (default MDC)
    Expanded:               2GB (MDC BIAS 0.1)
 
DASD:


Type of
DASD


Control
Unit


Number
of Paths



PAGE



SPOOL


- Number of Volumes -
TDSK



User



Server



System

3390-3
RAMAC 1
4






16




3390-3
RAMAC 1
4






16




3390-3
RAMAC 2
4
18
6
2






3390-2
3990-3
4
4


2




2

Note: Each set of RAMAC 1 volumes is behind a 3990-6 control unit with 1024M cache. RAMAC 2 refers to the RAMAC 2 Array Subsystem with 256M cache and drawers in 3390-3 format.

Software Configuration:   

Driver:                    TPNS
Think time distribution:   Bactrian
CMS block size:            4KB
 
Virtual Machines:


Virtual
Machine



Number



Type


Machine
Size



SHARE



RESERVED



Other Options

SMART
1
RTM
32M
3%
400
QUICKDSP ON
TCPIP
1
TCPIP
256M
3000
14000
QUICKDSP ON
WRITER
1
CP monitor
2M
100


QUICKDSP ON
Unnnn
3420
Users
3M
100




Measurement Discussion:  

TCP/IP 3A0 performance appears to be slightly better than TCP/IP 320 for the measured Telnet environment, as indicated by TCPIP Machine TOT CPU/CMD (V). The 0.6% decrease is similar to the average 1% decrease that was observed for the FTP workloads (see FTP).

Table 1. Migration from TCP/IP VM FL 320: Telnet


TCP/IP Release
Run ID


320
72BC3421


3A0
72BC3420



Difference



%Difference


Response Time
TRIV INT
NONTRIV INT
TOT INT
TOT INT ADJ
AVG FIRST (T)
AVG LAST (T)



0.07
0.64
0.17
0.13
0.11
0.18



0.07
0.64
0.17
0.13
0.10
0.17



0.00
-0.01
0.00
0.00
0.00
-0.01



-2.99%
-1.09%
-1.75%
-2.05%
-3.70%
-3.41%


Throughput
AVG THINK (T)
ETR
ETR (T)
ETR RATIO
ITR (H)
ITR
EMUL ITR
ITRR (H)
ITRR



9.11
267.43
341.41
0.78
379.11
148.66
185.05
1.000
1.000



9.11
266.72
341.53
0.78
381.58
149.21
185.25
1.006
1.004



0.00
-0.71
0.11
0.00
2.46
0.55
0.20
0.006
0.004



0.00%
-0.27%
0.03%
-0.30%
0.65%
0.37%
0.11%
0.65%
0.37%


Proc. Usage
PBT/CMD (H)
PBT/CMD
CP/CMD (H)
CP/CMD
EMUL/CMD (H)
EMUL/CMD



5.275
5.272
1.165
1.025
4.110
4.247



5.241
5.241
1.146
1.025
4.096
4.216



-0.034
-0.031
-0.020
0.000
-0.014
-0.031



-0.64%
-0.59%
-1.70%
-0.03%
-0.35%
-0.72%


Processor Util.
TOTAL (H)
TOTAL
UTIL/PROC (H)
UTIL/PROC
TOTAL EMUL (H)
TOTAL EMUL
MASTER TOTAL
MASTER EMUL
TVR(H)
TVR



180.11
180.00
90.06
90.00
140.33
145.00
91.00
67.00
1.28
1.24



179.01
179.00
89.51
89.50
139.89
144.00
91.00
67.00
1.28
1.24



-1.10
-1.00
-0.55
-0.50
-0.44
-1.00
0.00
0.00
0.00
0.00



-0.61%
-0.56%
-0.61%
-0.56%
-0.31%
-0.69%
0.00%
0.00%
-0.30%
0.14%


Storage
NUCLEUS SIZE (V)
TRACE TABLE (V)
WKSET (V)
PGBLPGS
PGBLPGS/USER
TOT PAGES/USER (V)
FREEPGS
FREE UTIL
SHRPGS



2472KB
350KB
67
244K
71.3
163
10281
0.97
1141



2472KB
350KB
67
244K
71.3
164
10176
0.98
1222



0KB
0KB
0
0K
0.0
1
-105
0.01
81



0.00%
0.00%
0.00%
0.00%
0.00%
0.61%
-1.02%
1.03%
7.10%


Paging
READS/SEC
WRITES/SEC
PAGE/CMD
PAGE IO RATE (V)
PAGE IO/CMD (V)
XSTOR IN/SEC
XSTOR OUT/SEC
XSTOR/CMD
FAST CLR/CMD



370
24
1.15
0.00
0.00
1869
1978
11.27
20.55



392
24
1.22
0.00
0.00
1869
1980
11.27
20.55



22
0
0.06
0.00
0.00
0
2
0.00
0.00



5.95%
0.00%
5.55%
na  
na  
0.00%
0.10%
0.02%
0.01%


Queues
DISPATCH LIST
ELIGIBLE LIST



93.7
0.0



93.5
0.0



-0.2
0.0



-0.21%
na  


I/O
VIO RATE
VIO/CMD
RIO RATE (V)
RIO/CMD (V)
NONPAGE RIO/CMD (V)
DASD RESP TIME (V)
MDC REAL SIZE (MB)
MDC XSTOR SIZE (MB)
MDC READS (I/Os)
MDC WRITES (I/Os)
MDC AVOID
MDC HIT RATIO



6463
18.93
1915
5.61
5.61
9.8
267
205
2992
643
2872
0.95



6472
18.95
1925
5.64
5.64
9.8
268
204
2993
646
2872
0.95



9
0.02
10
0.03
0.03
0.0
1
-1
1
3
0
0.00



0.14%
0.11%
0.52%
0.49%
0.49%
0.00%
0.34%
-0.34%
0.03%
0.47%
0.00%
0.00%


PRIVOPs
PRIVOP/CMD
DIAG/CMD
DIAG 04/CMD
DIAG 08/CMD
DIAG 0C/CMD
DIAG 14/CMD
DIAG 58/CMD
DIAG 98/CMD
DIAG A4/CMD
DIAG A8/CMD
DIAG 214/CMD
DIAG 270/CMD
SIE/CMD
SIE INTCPT/CMD
FREE TOTL/CMD



1.67
79.37
0.79
1.30
0.13
0.07
0.98
1.31
11.24
3.85
41.10
1.29
82.01
50.85
52.72



1.67
79.38
0.79
1.30
0.13
0.07
0.98
1.33
11.24
3.85
41.09
1.29
81.98
50.83
52.70



0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.02
0.00
0.00
-0.01
0.00
-0.03
-0.02
-0.02



0.05%
0.02%
0.00%
0.03%
0.09%
0.01%
0.04%
1.59%
-0.03%
-0.03%
-0.03%
0.04%
-0.03%
-0.03%
-0.03%


TCPIP Machine
WKSET (V)
TOT CPU/CMD (V)
CP CPU/CMD (V)
VIRT CPU/CMD (V)
DIAG 98/CMD (V)



7700
0.309
0.132
0.177
1.305



7700
0.307
0.130
0.177
1.325



0
-0.002
-0.002
0.000
0.020



0.00%
-0.65%
-1.52%
0.00%
1.53%

Note: 2064-109; LPAR; 2 dedicated processors; LPAR Storage: 1G central, 2G expanded; VM/ESA 2.4.0; real MDC: default; xstor MDC: bias 0.1; 3420 CMS1 users; External TPNS; T=TPNS, V=VMPRF, H=Hardware Monitor, Unmarked=RTM

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