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2023-02-06 - 06:55

x86 Intel Core i5-6440EQ @2700 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #5, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack5slot2.osadl.org (updated Mon Feb 06, 2023 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
56552188171,12sleep00-21swapper/019:06:370
57752185168,12sleep10-21swapper/119:08:091
58652169150,14sleep30-21swapper/319:09:213
584729780,12sleep20-21swapper/219:09:072
83222530,0sleep30-21swapper/323:43:203
60919961,3cyclictest0-21swapper/319:50:123
60919960,1cyclictest20221-21sed22:15:263
60919955,0cyclictest8631-21kworker/3:021:05:193
60919955,0cyclictest8631-21kworker/3:020:31:463
60919955,0cyclictest8631-21kworker/3:019:35:463
60919955,0cyclictest0-21swapper/300:25:133
60919951,3cyclictest740-21snmpd20:08:033
60919951,3cyclictest740-21snmpd20:01:483
60919951,3cyclictest740-21snmpd19:45:003
60919951,3cyclictest740-21snmpd19:11:243
60919951,2cyclictest0-21swapper/323:30:133
60919951,2cyclictest0-21swapper/322:25:153
60919950,5cyclictest0-21swapper/323:54:323
60919950,5cyclictest0-21swapper/323:05:113
60919950,5cyclictest0-21swapper/322:39:363
60919950,4cyclictest29915-21ssh00:15:083
60919950,4cyclictest29915-21ssh00:15:083
60919950,4cyclictest0-21swapper/321:10:443
60919950,4cyclictest0-21swapper/321:10:433
60919950,0cyclictest0-21swapper/300:03:143
60859955,0cyclictest0-21swapper/223:15:292
60859950,5cyclictest0-21swapper/223:55:122
60859950,5cyclictest0-21swapper/223:32:572
60859950,5cyclictest0-21swapper/223:01:582
60859950,5cyclictest0-21swapper/221:53:002
60859950,5cyclictest0-21swapper/221:40:542
60859950,5cyclictest0-21swapper/220:17:062
60859950,4cyclictest2604-21apt-get20:05:142
60859950,3cyclictest26103-21rm21:23:232
60859950,0cyclictest25891-21awk20:50:152
60799950,5cyclictest0-21swapper/123:56:421
60799950,5cyclictest0-21swapper/122:51:571
60749954,1cyclictest9275-21ssh21:13:440
60749954,1cyclictest9275-21ssh21:13:430
60749951,4cyclictest13191-21cron21:35:020
60749950,5cyclictest0-21swapper/023:45:210
60749950,5cyclictest0-21swapper/023:35:350
60749950,5cyclictest0-21swapper/023:28:280
60749950,5cyclictest0-21swapper/022:43:470
60749950,5cyclictest0-21swapper/022:18:020
60749950,5cyclictest0-21swapper/022:02:020
60749950,5cyclictest0-21swapper/021:36:170
60749950,4cyclictest0-21swapper/022:55:130
60749950,0cyclictest0-21swapper/019:40:150
60919944,0cyclictest8631-21kworker/3:022:57:193
60919944,0cyclictest8631-21kworker/3:021:38:553
60919944,0cyclictest8631-21kworker/3:019:58:113
60919944,0cyclictest8631-21kworker/3:019:24:353
60919944,0cyclictest0-21swapper/321:58:333
60919943,1cyclictest30101-21tr21:00:123
60919941,2cyclictest0-21swapper/322:30:123
60919941,2cyclictest0-21swapper/319:45:133
60919941,2cyclictest0-21swapper/319:25:113
60919940,4cyclictest0-21swapper/323:55:123
60919940,4cyclictest0-21swapper/323:22:473
60919940,4cyclictest0-21swapper/323:10:123
60919940,4cyclictest0-21swapper/323:00:133
60919940,4cyclictest0-21swapper/322:20:143
60919940,4cyclictest0-21swapper/321:51:443
60919940,4cyclictest0-21swapper/320:10:123
60919940,3cyclictest7704-21ntp_states00:20:213
60919940,3cyclictest6779-21/usr/sbin/munin22:45:223
60919940,3cyclictest677-21sh21:27:083
60919940,3cyclictest4518-21sh22:06:373
60919940,3cyclictest23980-21dpkg23:15:013
60919940,3cyclictest22300-21apt21:40:123
60919940,3cyclictest17743-21ssh21:18:353
60919940,3cyclictest1488-21sh22:42:523
60919940,3cyclictest1242-21sh23:39:303
60919940,3cyclictest11850-21hddtemp_smartct23:45:153
60919940,3cyclictest10024-21sh21:32:383
60919940,3cyclictest0-21swapper/319:15:203
60919940,1cyclictest9814-21munin-plugin-st20:20:003
60859944,0cyclictest0-21swapper/220:11:342
60859944,0cyclictest0-21swapper/200:17:552
60859944,0cyclictest0-21swapper/200:17:552
60859942,2cyclictest12825-21ssh23:26:382
60859942,1cyclictest740-21snmpd19:45:362
60859942,1cyclictest17226-21dpkg19:30:012
60859942,1cyclictest13357-21ssh00:24:132
60859942,1cyclictest12857-21ssh22:11:252
60859941,3cyclictest740-21snmpd23:47:072
60859941,3cyclictest740-21snmpd22:16:402
60859941,3cyclictest740-21snmpd21:19:542
60859941,1cyclictest13516-21ssh00:05:152
60859940,4cyclictest0-21swapper/223:10:132
60859940,4cyclictest0-21swapper/222:35:132
60859940,4cyclictest0-21swapper/222:20:142
60859940,4cyclictest0-21swapper/221:25:152
60859940,4cyclictest0-21swapper/221:10:142
60859940,4cyclictest0-21swapper/221:10:132
60859940,4cyclictest0-21swapper/220:22:372
60859940,3cyclictest9245-21ssh21:32:042
60859940,3cyclictest8936-21users19:15:012
60859940,3cyclictest774-21ssh23:20:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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