Ipc traffic analysis, Example 3-11. ipc traffic analysis – HP Integrity NonStop J-Series User Manual
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Guardian Performance Analyzer (GPA) User Guide
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IPC Traffic Analysis
For ServerNet-based systems, there is one IPC Traffic Analysis report (Example 3-11) for
each CPU in the system, which provides a summary of IPC (Inter-Processor
Communication) traffic to and from each processor. To generate this report, you enter
the following commands at the MEASCOM prompt before you run GPA.
Before you start the measurement, enter:
+ ADD SERVERNET *
After the measurement is taken, enter:
+ LIST SERVERNET *
The latter command creates a structured data file named SVNET for GPA to analyze.
The IPC Traffic Analysis reports the ServerNet IPC information. This information points out
which processors create (send) and which consume (receive) messages. By moving
processes that create messages to the consuming CPUs, you can reduce interprocess
message traffic costs.
Example 3-11. IPC Traffic Analysis
NODE: \DOME DATE: yy/08/27 TIME: 16:51:49 MEASURE VERSION: G04
MEASUREMENT DATE: yy/08/27 TIME: 16:24:06 DURATION: 000:14:59
IPC Traffic Analysis CPU # 0
FM TO Read Read RSecs RSecs Write Write WSecs WSecs
NO NO KReqs KBytes Qtime QBusy KReqs KBytes Qtime QBusy
-- -- ------- ------------ ------- ------- ------- ------------ ------- -------
00 00 0 0 0.00 0.00 0 0 0.00 0.00
00 00 0 0 0.00 0.00 0 0 0.00 0.00
00 01 0 0 0.00 0.00 920 294680 845.00 705.00
00 02 0 0 0.00 0.00 0 0 0.00 0.00
00 03 0 0 0.00 0.00 0 0 0.00 0.00
01 00 43 644184 568.00 568.00 757 775316 764.00 100.00
02 00 0 0 0.00 0.00 0 0 0.00 0.00
03 00 0 0 0.00 0.00 0 0 0.00 0.00
-- -- ------- ------------ ------- ------- ------- ------------ ------- -------
-- -- ------- ------------ ------- ------- ------- ------------ ------- -------
43 644184 568.00 568.00 1677 1069996 1609.00 805.00
The line items are:
(1)
NODE: The logical name used in the path to the physical device.
(2)
MEASUREMENT: The date, time, and duration of the measurement.
(3)
FM NO: The number of the linker CPU, which is the initiating processor of