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2024-07-16 - 08:31
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack1slot1.osadl.org (updated Tue Jul 16, 2024 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179762215160,25sleep00-21swapper/019:09:060
179682203162,27sleep20-21swapper/219:09:002
177292203165,25sleep10-21swapper/119:05:541
177562198161,23sleep30-21swapper/319:06:163
45232610,0sleep10-21swapper/123:16:261
77512530,0sleep10-21swapper/121:00:251
1815399250,24cyclictest0-21swapper/220:40:002
1815399140,13cyclictest21083-21apt-get22:10:132
1813599130,12cyclictest10838-21diskmemload22:00:310
188632110,0sleep310838-21diskmemload00:23:103
1816199110,6cyclictest0-21swapper/300:04:353
1815399116,4cyclictest13230-21sh22:45:002
1815399116,1cyclictest19745-21snmpd21:19:082
1815399110,0cyclictest0-21swapper/222:02:072
1813599110,10cyclictest20484-21munin-node23:39:230
98752100,0sleep20-21swapper/221:54:462
18161991010,0cyclictest35-21ksoftirqd/300:09:203
1815399108,1cyclictest520-21rpcbind22:23:102
1815399106,1cyclictest61250irq/122-eno123:50:222
1813599106,2cyclictest9-21ksoftirqd/021:40:180
1813599102,4cyclictest27199-21perf23:50:000
1813599100,7cyclictest3233-21apt-get21:45:110
1813599100,5cyclictest14267-21latency_hist21:15:000
181619991,7cyclictest5991-21runrttasks21:48:303
181619991,6cyclictest31702-21apt-get20:45:123
181619991,5cyclictest18017-21apt-get21:20:113
181619990,3cyclictest0-21swapper/319:55:133
181619990,1cyclictest259-21systemd-journal20:40:003
181619990,0cyclictest0-21swapper/322:59:503
181539994,1cyclictest61250irq/122-eno123:15:262
181539993,2cyclictest23929-21apt-get23:45:132
181539990,8cyclictest12637-21/usr/sbin/munin00:15:242
181359997,1cyclictest9-21ksoftirqd/021:25:350
181359997,1cyclictest9-21ksoftirqd/000:15:170
181359996,1cyclictest9-21ksoftirqd/020:40:000
181359990,6cyclictest9106-1kworker/u9:223:30:340
181359990,5cyclictest0-21swapper/023:40:100
26943280,0sleep30-21swapper/323:49:223
181619986,1cyclictest19745-21snmpd23:50:313
181619986,1cyclictest19745-21snmpd22:40:413
181619986,1cyclictest19745-21snmpd22:11:073
181619986,1cyclictest19745-21snmpd19:54:183
181619986,1cyclictest19745-21snmpd19:33:233
181619986,1cyclictest19745-21snmpd00:26:473
181619982,4cyclictest27213-21sh21:31:233
181619981,5cyclictest1422-21ntpd20:30:223
181619981,4cyclictest0-21swapper/322:15:083
181619981,3cyclictest544-21nscd00:17:323
181619980,4cyclictest0-21swapper/321:15:143
181619980,3cyclictest0-21swapper/320:50:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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