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HP-UX SNAplus Performance Data Analysis
Release 2
(QLLC and SDLC only)
(Token Ring in process)
March 22, 1993
1. Introduction:
This report includes performance data for SNAplus3270, SNAplus API APPC,
SNAplusRJE, and SNAplus3179G running under a variety of conditions over the
SDLC and QLLC links. The reader is cautioned that these are rough numbers,
and the actual performance levels will vary. This document covers the HP9000
series S350, S400, S750, and S827. Testing was also done on an HP9000
series 720 for comparison purposes between Release 1 and Release2. User CPU
utilization data is the sum of CPU utilization for all SNA user processes
running on the system while the data transfer is in progress. The system CPU
utilization is included because parts of the SNA stack run in the kernel. AT
the time of the printing of this report, Token Ring testing had begun but had
not been completed. When it is completed, it will be added as section 5.3.
2. Test Environments:
2.1 HP900 machine configurations
HP9000 series S350 -- Running HP-UX 9.0, 16Mb RAM, 59Mb swap
HP9000 series S400 -- Running HP-UX 9.0, 16Mb RAM, 64Mb swap
HP9000 series S750 -- Running HP-UX 9.01, 32Mb RAM, 122Mb swap
HP9000 series S827 -- Running HP-UX 9.0, 32Mb RAM, 107Mb swap
2.2 Other Configuration
IBM 4381-91E host running MVS/ESA 3.1, 16Mb memory
File transfer tests using 125K bytes file size for SNAplus3270.
Data transfer tests for APPC 32K bytes data size for APPC
Data transfer tests for 3179G used a 192K Graphic
Data transfer tests for RJE used 50K and 75K data size
Performance Data Analysis
3. SNA Products Memory Requirements
The following table demonstrates the memory requirements for the programs
associated with the HP-UX/SNAplus products. The "Text" column is the size of
the text segment of the process. This is shared by all process on the system.
The "Data" column is the size of all private data and stack space used by the
processes. The memory requirements shown are to be used to ensure the customer
is outfitted with enough memory for proper operation of the HP-UX SNAplus
products.
When a user runs the "snap3270" command, the process forks, so there are
actually two process per instance of snap3270. The "Data" memory usage of
snap3270 includes both snap3270 processes. The memory usage of APPC is for a
minimal TP. The total memory usage of a customer's transaction program will
depend on the size of the program, the library commands used, and other
libraries which the customer links into their TP.
Table 1: HP-UX/SNA Memory Usage (in Kbytes)
Series S300/S400 Series 700 Series 800
Text | Data & Stack | Text | Data & Stack | Text | Data & Stack
snapdaemon | 20 | 100 | 24 | 112 | 24 | 114
snaperrlog | 28 | 114 | 36 | 124 | 36 | 126
bsdslim | 52 | 174 | 64 | 178 | 64 | 170
snap3270 | 248 | 206 | 306 | 198 | 306 | 240
snap3179g | 178 | 838 | 230 | 918 | 220 | 888
snapRJE | 180 | 180 | 320 | 238 | 220 | 184
APPC TP | 68 | 168 | 84 | 194 | 84 | 192
snapconfig | 248 | 786 | 304 | 800 | 296 | 798
snapmanage | 142 | 686 | 174 | 698 | 174 | 696
snapbrowse | 90 | 518 | 112 | 620 | 112 | 246
xsnap3270 | 276 | 538 | 348 | 544 | 426 | 528
xsnapmanage | 144 | 896 | 180 | 928 | 178 | 956
xsnapconfig | 254 | 1036 | 318 | 1008 | 310 | 1062
xsnapbrowse | 90 | 492 | 114 | 462 | 114 | 484
3.1 Calculating Memory Usage - Example 1
A customer wants to have 12 users with Xterminals each running three 3270
sessions. All SNA processes will run on a Series 750 box which is an SNA
server. These users will be constantly active, so the customer wants to
have enough memory on the S750 to avoid swapping. Each instance of 3270
can run up to 10 sessions, so if each user starts snap3270 only once and
uses the multi-session capability to get their three sessions, we will have
12 instances of 3270 on the S750. So all the SNA processes that will run
on the S750 and their memory usage are:
Text Per Process Total
Data & Stack Data & Stack
snapdaemon......... 24 112 = 112
snaperrlog......... 36 124 = 124
snap3270
(12 instances)..... 306 236 x 12 = 2,832
---- --------
Grand Totals: ..... 366 Bytes Text 3,068 Bytes Data
& Stack
We only include the "Text" segment of any process once, since it is
shared by all instances of the process on the system. Include the "Data"
segment once for each instance of the process. Note that each time a user
starts snap3270, the process forks into two processes, but the data and
stack space for both of these processes are already included in the table
above.
So the customer needs 3,434 Kbytes (or about 3.4Mb) of memory for SNA. Add
this to the memory the user needs for the system and whatever else they are
running on the machine, and you can determine how much total memory they need.
3.2 Example 2
The customer wants to have 250 users on a Series 827 each with one 3270
session constantly running, but expects that at any time only 50 of the
users will be actually using the product. In this case, 250 instances of
snap3270 will be running, but 200 of them can be swapped out, so the amount
of memory utilized by SNA will be:
Text Per Process Total
Data & Stack Data & Stack
snapdaemon......... 24 114 = 112
snaperrlog......... 36 126 = 124
snap3270
(12 instances)..... 306 240 x 50 = 12,000
---- --------
Grand Totals: ..... 366 Bytes Text 12,240 Bytes Data
& Stack
So the customer needs 12,606 Kbytes of memory for SNA, in addition to
what they need for the system and other products. Note that snap3270 will
still take up (306K + (240x250K)) = 60,306K bytes of swap space. Be sure
the customer realizes this and configures enough swap space.
4. SNA Products Disk Space Requirements
The following table illustrates the disk space requirements for the files
associated with the HP-UX/SNA products.
Table 1:
S300/S400 S700 S800
-------- ------- -------
SNAP3179G 563,200 737,280 696,320
SNAP-3270 2,570,240 3,358,720 3,328,000
SNAP-API 307,200 624,640 624,640
SNAP-COMMON 6,297,600 8,007,680 8,007,680
SNAP-LINK NA 2,150,400 2,160,640
SNAP-MAN 112,640 112,640 112,640
SNAP-RJE 1,003,520 1,474,560 1,474,560
5. SNA Products Performance Data
5.1 SDLC LINK
5.1.1 SNAplus3270
Response Time:
When measuring response times for SNAplus3270, we use two different sample
applications: a data entry application and a program development application.
These phony applications run on the IBM host but they do not require any host
processing beyond sending and receiving the screens. this allows us to measure
just the communications response time.
A Data Entry Transaction is characterized by sending a lot of characters to
the host and receiving relatively few back. Our sample data entry screed
contains 73 feilds (42 protected, 31 unprotected). The tester types data
in the 31 unprotected fields (approximately 730 characters) and presses ENTER
to send the data. After the data has been received by the host application,
it sends back an order to erase all unprotected fields. The tester is then
free to enter another screen of data.
A Program Development Transaction is characterized by sending only a few
characters to the host, but receiving relatively many back. the screen used
for this test looks like an editor screen. It contains 50 fields (3 protected,
47 unprotected). The tester types in a few characters into an unprotected
field (which indicate that the user wants to delete or add aline). The host
application responds by changing the bottom 10 lines of the screen
(approximately 400 characters).
Table 1: Stand Alone SNAplus3270, SerieS827, 56K baud line
Application Average Standard Deviation 95% Confidence Interval
---------- --------- -------------------- -------------------------
Data Entry 0.39 sec 0.04 sec [0.39 sec,0.40 sec]
Program Development 0.34 sec 0.03 sec [0.33 sec,0.35 sec]
Table 2: Client/Server SNAplus3270, Client Machine: S400, Server Machine: S827 56K baud line
Application Average Standard Deviation 95% Confidence Interval
---------- --------- -------------------- -------------------------
Data Entry 0.60 sec 0.05 sec [0.58 sec,0.61 sec]
Program Development 0.49 sec 0.08 sec [0.47 sec,0.52 sec]
Table 3: Client/Server SNAplus3270, Client Machine: S350, Server Machine: S827 56K baud line
Application Average Standard Deviation 95% Confidence Interval
---------- --------- -------------------- -------------------------
Data Entry 0.74 sec 0.06 sec [0.72 sec,0.76 sec]
Program Development 0.61 sec 0.06 sec [0.59 sec,0.63 sec]
SNAplus3270 Throughput:
Table 4: Stand Alone SNAplus3270 on S827 56K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 26.01 Kbps 45.4% 2.8% 4.5% 25.36 Kbps 44.2% 1.8% 2.8%
2 40.57 Kbps 70.8% 3.4% 4.9% 34.97 Kbps 61.0% 2.2% 3.5%
4 41.83 Kbps 73.0% 3.6% 5.0% 42.71 Kbps 74.5% 2.8% 4.3%
Table 5: Stand Alone SNAplus3270 on S750 56K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 34.98 Kbps 63% 1.9% 4.1% 30.74 Kbps 54% 3.2% 5.7%
2 45.08 Kbps 79% 2.1% 3.8% 39.02 Kbps 64% 3.4% 4.6%
4 46.64 Kbps 81% 2.3% 2.7% 44.59 Kbps 78% 2.9% 5.6%
Table 6: Client/Server SNAplus3270, Client Machine: S400, Server Machine: S827
56K baud line
Inbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 24.74 Kbps 43.2% 10% 11% 2.6% 4.2%
2 36.88 Kbps 64.3% 14% 13% 3.3% 4.8%
4 42.26 Kbps 73.7% 17% 16% 3.7% 4.9%
Table 7: Client/Server SNAplus3270, Client Machine:S400,Server Machine: S827
56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 24.74 Kbps 43.2% 13% 10% 2.5% 4.2%
2 36.39 Kbps 60.0% 19% 12% 3.2% 4.6%
4 41.83 Kbps 73.1% 22% 15% 3.8% 4.9%
Table 8: Client/Server SNAplus3270, Client Machine: S350, Server Machine: S827 56K baud line
Inbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 21.58 Kbps 37% 24% 16.5% 2.6% 4.2%
2 29.83 Kbps 52% 34.3% 21.0% 3.3% 4.8%
4 41.40 Kbps 72% 39.4% 28.4% 3.7% 4.9%
Table 9: Client/Server SNAplus3270, Client Machine: S350, Server Machine: S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 19.14 Kbps 33% 23.1% 19.1% 2.5% 4.2%
2 31.21 Kbps 54% 32.5% 29.6% 3.2% 4.6%
4 41.41 Kbps 72% 41.0% 31.0% 3.8% 4.9%
SNAplusAPI LU6.2 Throughput:
Table 10: Stand Alone SNAplusLU6.2 on S750 56K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 44.96 Kbps 78.4% 0-1% 1.4% 28.40 Kbps 49.5% 0-1% 1.5%
2 45.39 Kbps 79.1% 0-1% 1.3% 37.10 Kbps 64.7% 0-1% 1.7%
4 46.21 Kbps 80.6% 0-1% 1.4% 41.43 Kbps 72.2% 0-1% 1.8%
8 46.40 Kbps 80.9% 0-1% 1.4% 42.04 Kbps 73.3% 0-1% 2.0%
Table 11: Stand Alone SNAplusLU6.2 on S750 56K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 46.07 Kbps 80.3% 0-1% 1.2% 35.42 Kbps 61.8% 0-1% 1.3%
2 49.64 Kbps 86.6% 0-1% 1.9% 42.94 Kbps 74.9% 0-1% 1.5%
4 50.61 Kbps 88.2% 0-1% 2.0% 44.72 Kbps 78.0% 0-1% 1.5%
8 50.47 Kbps 88.0% 1.0% 2.1% 46.02 Kbps 46.0% 0-1% 1.5%
Table12: Client/Server LU6.2, Client Machine: S400, Server Machine: S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 42.28 Kbps 73.7% 5.5% 6.3% 1.0% 2.1%
2 45.59 Kbps 79.5% 5.7% 7.6% 1.2% 2.6%
4 46.08 Kbps 80.4% 6.3% 9.0% 1.1% 2.3%
8 46.27 Kbps 80.7% 6.4% 9.2% 1.2% 2.5%
Table13: Client/Server LU6.2, Client Machine: S400, Server Machine: S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 20.273 Kbps 35.4% 2.3% 5.5% 1.0% 1.6%
2 35.79 Kbps 62.5% 2.6% 6.0% 1.2% 2.3%
4 40.94 Kbps 71.4% 3.2% 6.6% 1.1% 2.5%
8 43.2 Kbps 75.0% 3.5% 7.3% 1.3% 2.5%
Table14: Client/Server LU6.2, Client Machine: S350, Server Machine: S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 24.28 Kbps 42.3% 3.5% 7.2% 1.1% 1.7%
2 35.15 Kbps 61.3% 4.1% 7.7% 1.2% 2.5%
4 41.03 Kbps 71.6% 4.4% 7.9% 1.3% 3.0%
8 42.72 Kbps 74.5% 4.5% 8.3% 1.5% 3.1%
Table15: Client/Server LU6.2, Client Machine: S350, Server Machine: S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 20.21 Kbps 35.3% 3.4% 6.8% 0-1% 1.4%
2 37.08 Kbps 64.7% 4.3% 7.2% 1.1% 2.8%
4 40.66 Kbps 70.9% 4.7% 7.5% 1.3% 3.2%
8 42.61 Kbps 74.3% 5.1% 8.1% 1.3% 3.4%
SNAplusRJE Throughput:
Table 16: Stand Alone SNAplus RJE on S827, 56K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 36.01 Kbps 62.8% 3.8% 10.2% 3.90 Kbps 6.8% 3.5% 8.8%
2 NA 7.30 Kbps 12.7% 4.2% 10.7%
4 NA 17.45 Kbps 30.4% 8.7% 15.2%
SNAplus3179G Throughput:
Table 17: Stand Alone SNAplus3179G on S827, 56K baud line
Outbound
# LU's Throughput Line User System
Util. CPU CPU
------ ---------- ----- ---- ------
1 24.47 Kbps 42.7% 0-1% 3.4%
2 34.91 Kbps 60.9% 0-1% 3.6%
4 44.31 Kbps 77.3% 1.0% 3.5%
Table 18: Stand Alone SNAplus3179G on S750, 56K baud line
Outbound
# LU's Throughput Line User System
Util. CPU CPU
------ ---------- ----- ---- ------
1 25.3 Kbps 44.0% 0-1% 3.0%
2 35.0 Kbps 61.1% 0-1% 3.3%
4 46.4 Kbps 81.1% 0-1% 3.5%
Table 19:Client/Server SNAplus 3179G, Client Machine: S400,
Server Machine:S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 20.36 Kbps 35.5% 3.4% 5.6% 0-1% 6.7%
2 32.77 Kbps 57.2% 4.8% 6.4% 0-1% 7.1%
4 44.62 Kbps 78.1% 5.8% 9.7% 1.5% 7.1%
Table 20: Client/Server SNAplus3179G, Client Machine: S350,
Server Machine:S827 56K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 17.35 Kbps 30.3% 3.8% 8.0% 0-1% 7.6%
2 28.28 Kbps 49.0% 7.9% 12.4% 1.1% 7.2%
4 44.45 Kbps 77.5% 11.1% 17.9% 1.6% 7.5%
5.2 QLLC LINK
5.2.1 SNAplus 3270
Response Time: As explained in Sectin 5.1.1
Table 1: Stand Alone SNAplus3270 Response Time, Series S827, 64K baud line
Application Average Standard Deviation 95% Confidence Interval
---------- ---------- -------------------- -------------------------
Data Entry 0.40 sec 0.08 sec [0.37 sec,0.42 sec]
Program Development 0.37 sec 0.03 sec [0.36 sec,0.38 sec]
Table 2: Client/Server SNAplus3270 Response Time, Client Machine:S400,
Server Machine: S827 64K baud line
Application Average Standard Deviation 95% Confidence Interval
---------- ---------- -------------------- -------------------------
Data Entry 0.76 sec 0.05 sec [0.74 sec,0.78 sec]
Program Development 0.54 sec 0.06 sec [0.52 sec,0.56 sec]
Table 3: Client/Server SNAplus3270 Response Time, Client Machine: S400,
Server Machine: S827 64K baud line
Application Average Standard Deviation 95% Confidence Interval
---------- ---------- -------------------- -------------------------
Data Entry 0.84 sec 0.04 sec [0.83 sec,0.85 sec]
Program Development 0.62 sec 0.08 sec [0.60 sec,0.65 sec]
SNAplus3270 Throughput:
Table 4: Stand Alone SNAplus3270 on S827 64K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 21.13 Kbps 33% 2.1% 5.3% 25.36 Kbps 40% 2.9% 5.2%
2 32.20 Kbps 50% 2.5% 4.9% 44.10 Kbps 69% 2.7% 8.1%
4 45.59 Kbps 71% 3.2% 5.7% 47.18 Kbps 74% 3.4% 8.5%
Table 5: Stand Alone SNAplus3270 on S750 64K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 23.05 Kbps 35.2% 2.0% 5.4% 25.36 Kbps 45.0% 2.3% 5.8%
2 34.38 Kbps 52.5% 3.0% 6.6% 49.48 Kbps 75.5% 3.0% 7.8%
4 35.28 Kbps 53.8% 2.6% 7.9% 50.20 Kbps 77.4% 2.5% 9.0%
Table 6: Client/Server SNAplus3270, Client Machine: S400, Server Machine: S827
64K baud line
Inbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 20.7 Kbps 32% 9.7% 4.6% 0-1% 3.4%
2 32.2 Kbps 50% 15.1% 6.9% 0-1% 5.6%
4 45.1 Kbps 70% 17.3% 12.9% 0-1% 5.9%
Table 7: Client/Server SNAplus3270, Client Machine:S400, Server Machine:S827
64K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 21.13 Kbps 33% 12.5% 10.2% 1.0% 1.3%
2 38.28 Kbps 60% 24% 20% 1.5% 4.3%
4 46.11 Kbps 72% 26% 17% 1.8% 6.8%
Table 8: Client/Server SNAplus3270, Client Machine:S350, Server Machine: S827
64K baud line
Inbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 16.91 Kbps 26% 21% 11% 1.0% 1.5%
2 31.21 Kbps 49% 37% 18% 1.3% 2.5%
4 43.62 Kbps 68% 49% 26% 1.7% 4.4%
Table 9: Client/Server SNAplus3270, Client Machine: S350, Server Machine: S827
64K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 17.80 Kbps 28% 24% 12% 1.0% 1.3%
2 32.72 Kbps 51% 42% 24% 2.0% 3.4%
4 41.40 Kbps 65% 59% 30% 3.0% 4.6%
SNAplusAPI LU6.2 Throughput:
Table 10: Stand Alone LU6.2 on S827 64K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 29.96 Kbps 47% 0-1% 2.3% 24.99 Kbps 39% 0-1% 6.4%
2 35.87 Kbps 56% 0-1% 2.8% 34.51 Kbps 54% 1.0% 7.7%
4 49.20 Kbps 72% 1.0% 3.5% 44.26 Kbps 69% 1.0% 7.3%
8 48.40 Kbps 76% 1.2% 3.8% 45.13 Kbps 71% 1.0% 7.7%
Table 11: Stand Alone LU6.2 on S750 64K baud line
Inbound Outbound
# LU's Throughput Line User System Throughput Line User System
Util. CPU CPU Util. CPU CPU
------ ---------- ----- ----- ------ ---------- ----- ---- ------
1 29.92 Kbps 45.7% 0-1% 2.0% 24.75 Kbps 37.8% 0-1% 6.1%
2 41.84 Kbps 63.8% 0-1% 2.5% 44.89 Kbps 68.5% 1.0% 6.9%
4 48.16 Kbps 73.5% 0-1% 3.8% 48.28 kbps 73.7% 1.0% 7.5%
8 49.16 Kbps 75.0% 1.0% 3.4% 49.40 Kbps 75.4% 1.0% 7.5%
Table 12: Client/Server SNAplusLU6.2, Client Machine: S400,Server Machine: S827
64K baud line
Inbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 36.01 Kbps 59% 1.7% 1.6% 0-1% 3.0%
2 41.94 Kbps 64% 2.1% 1.9% 1.0% 3.86%
4 48.12 Kbps 73.4% 2.2% 2.4% 1.2% 4.0%
8 45.77 Kbps 69.8% 3.4% 4.2% 1.4% 4.4%
Table 13: Client/Server LU6.2, Client Machine: S400, Server Machine: S827
64K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 20.95 Kbps 33% 8.4% 5.5% 2.2% 5.2%
2 32.50 Kbps 51% 12.7% 10.3% 3.1% 5.8%
4 44.81 Kbps 70% 15.6% 13.1% 5.2% 8.3%
8 45.73 Kbps 71% 18.4% 15.5% 3.6% 9.4%
Table 14: Client/Server LU6.2, Client Machine:S350, Server Machine: S827
64K baud line
Inbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 28.19 Kbps 44% 1.2% 2.1% 0-1% 2.8%
2 36.41 Kbps 56% 2.0% 6.6% 1.3% 3.7%
4 45.61 Kbps 71% 2.7% 6.9% 1.2% 4.1%
8 42.99 Kbps 67% 3.6% 6.3% 1.5% 4.2%
Table 15: Client/Server LU6.2, Client Machine:S350, Server Machine: S827
64K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 20.82 Kbps 33% 7.7% 8.1% 1.7% 5.3%
2 35.31 Kbps 55% 8.2% 10.8% 2.4% 5.8%
4 44.77 Kbps 70% 13.6% 18.2% 3.3% 10.0%
8 45.32 Kbps 71% 14.1% 18.5% 3.7% 11.0%
5.2.3 SNAplus3179G Throughput
Table 16: Stand Alone SNAplus3179G on S750 64K baud line
Outbound
# LU's Throughput Line User System
Util. CPU CPU
------ ---------- ----- ---- ------
1 24.25 Kbps 37.9% 0-1% 3.1%
2 41.58 Kbps 65.0% 0-1% 5.5%
4 52.92 Kbps 83.1% 0-1% 7.4%
Table 17: Stand Alone SNAplus3179G on S750, 64K baud line
Outbound
# LU's Throughput Line User System
Util. CPU CPU
------ ---------- ----- ---- ------
1 24.57 Kbps 42.9% 0-1% 1.6%
2 48.64 Kbps 84.8% 0-1% 2.8%
4 50.62 Kbps 77.2% 0-1% 3.6%
Table 18: Client/Server SNAplus3179G, Client Machine: S400,Server Machine: S827
64K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 19.79 Kbps 35% 2.0% 5.1% 0-1% 2.9%
2 34.81 Kbps 61% 3.6% 7.5% 0-1% 5.1%
4 53.57 Kbps 92% 5.9% 13.1% 1.2% 7.1%
Table 19: Client/Server SNAplus3179G, Client Machine: S350,Server Machine: S827
64K baud line
Outbound
# LU's Throughput Line Client Client Server Server
Util. User System User System
CPU CPU CPU CPU
------ ---------- ----- ------ ------ ------ ------
1 16.78 Kbps 26% 3.7% 7.4% 0-1% 3.0%
2 31.37 Kbps 49% 4.6% 10.3% 0-1% 4.3%
4 46.40 Kbps 72% 6.1% 14.9% 1.5% 6.4%