- -i time-interval-for-collecting-performance-information
Specify, in seconds, the time interval for which performance information is to be collected. Collection of performance information will start when the utility is executed and continue for the specified time interval. The collected information is then displayed. If you omit this parameter, the default value will be used.
Default value: 300 (5 minutes)
Minimum value: 1 (1 second)
Maximum value: 3600 (1 hour)
- -c count
Specify this parameter if you want to collect performance information multiple times for the time interval specified for the -i parameter. If you omit this parameter, the default value will be used.
If you specify 0, the utility will be executed in succession until the user stops the execution. To stop the utility, press Ctrl+C to terminate the processing.
Default value: 1
Minimum value: 0
Maximum value: 1440
- -f CSV-file-name
Specify this parameter to output the performance information to a CSV file. If you specify this parameter, performance information will not be output to the standard output.
If you specify 0 for the -c parameter, _YYYYMMDDhhmmss.csv will be added to the end of the name of the specified CSV file to which the performance information is to be output. YYYYMMDDhhmmss indicates the time (coordinated universal time) at which the file was created.
- -o
If the file specified for the -f parameter already exists, the file will be overwritten. If you omit this parameter, the file will not be overwritten, and processing will be canceled.
This parameter is valid when the -f parameter is specified.
If you specify 0 for the -c parameter, the file will always be overwritten regardless of whether the -o parameter is specified.
- -m number-of-measurements-for-a-single-file
Specify the number of measurements to be output to a single CSV file. When the number of measurements reaches the specified value, a new CSV file will be created.
You can specify this parameter only when 0 is specified for the -c parameter.
Default value: 60
Minimum value: 1
Maximum value: 1440
- -r total-number-of-files
Specify the maximum for the total number of CSV files. When the total number of CSV files reaches the specified number, the oldest CSV file will be deleted.
You can specify this parameter only when 0 is specified for the -c parameter.
Default value: 192
Minimum value: 2
Maximum value: 10000
- -a
Specify this parameter to display all performance information items.
For details on the items that will be displayed, see Table 1.
Example
# /opt/DynamicLinkManager/bin/dlmperfinfo -i 300 -c 2 KAPL13031-I The utility for displaying HDLM performance information (dlmperfinfo) will now start. Start time = 2017/08/30 13:33:02 Paths:000008 StartTime : 2017/08/30 13:33:02 LDEV HDevName Device PathID Count_R/s Count_W/s MB_R/s MB_W/s Time_R Time_W VSP_5000.39303.000034 sddlmaa /dev/sdn 000000 39 1 0.1529 0.0020 178.7573 577.9713 VSP_5000.39303.000034 sddlmaa /dev/sdj 000001 27 15 0.1043 0.0581 296.1975 635.3980 VSP_5000.39303.000035 sddlmab /dev/sdo 000002 36 3 0.1419 0.0103 181.3033 574.9685 VSP_5000.39303.000035 sddlmab /dev/sdk 000003 28 12 0.1086 0.0486 264.5819 631.7705 VSP_Ex00.416044.0000DC sddlmac /dev/sdp 000004 36 5 0.1392 0.0201 182.9648 660.8496 VSP_Ex00.416044.0000DC sddlmac /dev/sdl 000005 31 10 0.1198 0.0408 199.3436 612.3772 VSP_Ex00.416044.0000DD sddlmad /dev/sdq 000006 33 9 0.1303 0.0337 200.1740 628.4486 VSP_Ex00.416044.0000DD sddlmad /dev/sdm 000007 33 7 0.1287 0.0271 209.2022 592.1750 StartTime : 2017/08/30 13:38:02 LDEV HDevName Device PathID Count_R/s Count_W/s MB_R/s MB_W/s Time_R Time_W VSP_5000.39303.000034 sddlmaa /dev/sdn 000000 28 4 0.1083 0.0173 191.2685 629.1892 VSP_5000.39303.000034 sddlmaa /dev/sdj 000001 25 8 0.0965 0.0311 229.8288 605.9427 VSP_5000.39303.000035 sddlmab /dev/sdo 000002 31 0 0.1210 0.0005 178.9322 521.0268 VSP_5000.39303.000035 sddlmab /dev/sdk 000003 21 12 0.0809 0.0472 301.9184 606.0571 VSP_Ex00.416044.0000DC sddlmac /dev/sdp 000004 27 6 0.1049 0.0234 181.4669 649.0319 VSP_Ex00.416044.0000DC sddlmac /dev/sdl 000005 26 6 0.0999 0.0249 200.4265 595.3118 VSP_Ex00.416044.0000DD sddlmad /dev/sdq 000006 25 8 0.0967 0.0310 173.3032 600.1512 VSP_Ex00.416044.0000DD sddlmad /dev/sdm 000007 28 4 0.1080 0.0173 193.9738 612.7454 KAPL13032-I The utility for displaying HDLM performance information (dlmperfinfo) finished. End time = 2017/08/30 13:43:02