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2026-06-16 - 02:47
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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 100 highest latencies:
System rack1slot3.osadl.org (updated Tue Jun 16, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5848099120,11cyclictest0-21swapper/323:45:003
5848099120,11cyclictest0-21swapper/322:20:013
5848099120,11cyclictest0-21swapper/321:40:193
5848099120,11cyclictest0-21swapper/321:20:113
5848099120,11cyclictest0-21swapper/320:45:003
5848099120,11cyclictest0-21swapper/320:00:003
5848099120,11cyclictest0-21swapper/300:05:143
5848099120,11cyclictest0-21swapper/300:00:003
5848099120,0cyclictest0-21swapper/321:00:113
58480991111,0cyclictest0-21swapper/319:20:173
58480991110,0cyclictest0-21swapper/321:15:123
5848099110,10cyclictest0-21swapper/321:25:123
5848099110,10cyclictest0-21swapper/320:55:133
5848099110,10cyclictest0-21swapper/300:10:193
5848099110,0cyclictest0-21swapper/323:30:143
5848099109,0cyclictest0-21swapper/320:05:143
5848099108,1cyclictest0-21swapper/322:30:123
58480991010,0cyclictest0-21swapper/322:20:143
58480991010,0cyclictest0-21swapper/321:05:123
58480991010,0cyclictest0-21swapper/319:50:133
5848099100,9cyclictest0-21swapper/322:55:193
5848099100,9cyclictest0-21swapper/300:32:203
5848099100,9cyclictest0-21swapper/300:24:263
5848099100,0cyclictest0-21swapper/323:15:123
584809999,0cyclictest0-21swapper/323:05:203
584809999,0cyclictest0-21swapper/323:00:123
584809999,0cyclictest0-21swapper/321:35:143
584809999,0cyclictest0-21swapper/320:35:213
584809999,0cyclictest0-21swapper/300:30:013
584809998,0cyclictest0-21swapper/322:40:143
584809998,0cyclictest0-21swapper/322:40:143
584809990,9cyclictest0-21swapper/323:25:193
584809990,8cyclictest0-21swapper/323:50:013
584809990,0cyclictest0-21swapper/319:45:123
56763291,5sleep30-21swapper/319:05:133
584809988,0cyclictest0-21swapper/322:37:193
584809988,0cyclictest0-21swapper/321:55:163
584809988,0cyclictest0-21swapper/321:10:173
584809988,0cyclictest0-21swapper/320:45:103
584809988,0cyclictest0-21swapper/320:15:163
584809987,1cyclictest0-21swapper/320:10:133
584809987,0cyclictest0-21swapper/322:10:593
584809980,7cyclictest0-21swapper/319:30:103
584809977,0cyclictest0-21swapper/323:35:123
584809977,0cyclictest0-21swapper/322:50:183
584809977,0cyclictest0-21swapper/322:05:143
584809977,0cyclictest0-21swapper/322:00:123
584809977,0cyclictest0-21swapper/320:00:173
584809977,0cyclictest0-21swapper/300:35:143
584809976,0cyclictest0-21swapper/320:25:203
584809976,0cyclictest0-21swapper/300:15:153
584809970,7cyclictest0-21swapper/323:10:123
584809966,0cyclictest0-21swapper/323:50:003
584809966,0cyclictest0-21swapper/321:50:123
584809966,0cyclictest0-21swapper/320:30:003
584809966,0cyclictest0-21swapper/319:35:123
584809966,0cyclictest0-21swapper/319:15:003
584809965,0cyclictest0-21swapper/322:25:123
584809960,6cyclictest0-21swapper/319:40:143
132136266,0sleep00-21swapper/022:15:010
584809955,0cyclictest0-21swapper/323:20:063
584809955,0cyclictest0-21swapper/320:55:013
584809954,0cyclictest0-21swapper/322:45:133
584809954,0cyclictest0-21swapper/321:32:363
584809950,2cyclictest0-21swapper/320:20:123
584809944,0cyclictest0-21swapper/300:00:553
584809940,3cyclictest66193-21chrt19:25:483
584809940,2cyclictest0-21swapper/321:45:123
57982240,4sleep10-21swapper/119:05:261
57470241,1sleep00-21swapper/019:05:170
56673241,2sleep20-21swapper/219:05:112
177381240,1sleep0177487-21python300:00:200
161634240,3sleep0161849-21cut23:25:010
62945230,1sleep262971-21apt-get19:20:132
584809930,2cyclictest0-21swapper/319:10:113
186337230,0sleep10-21swapper/100:21:511
172316230,1sleep0172343-21apt-get23:50:110
169727230,0sleep20-21swapper/223:42:462
89775220,1sleep289966-21latency_hist20:30:012
84401220,1sleep084688-21df20:15:140
71334220,1sleep271486-21memory19:40:132
58870220,1sleep00-21swapper/019:10:150
192472220,0sleep10-21swapper/100:35:511
184071220,0sleep10-21swapper/100:15:261
180678220,1sleep0180704-21apt-get00:10:120
176161220,0sleep20-21swapper/223:59:262
159803220,2sleep260424-21munin-node23:20:112
159077220,0sleep00-21swapper/023:16:020
141160220,1sleep0141431-21df_inode22:35:140
141004220,1sleep2141032-21apt-get22:35:122
137993220,2sleep0766-21snmpd22:26:220
126607220,0sleep2191rcu_preempt22:00:142
121340220,0sleep00-21swapper/021:46:430
119881220,1sleep1119907-21apt-get21:45:131
116129220,1sleep10-21swapper/121:35:151
111691220,1sleep20-21swapper/221:25:122
99985210,0sleep20-21swapper/220:55:142
99861210,0sleep00-21swapper/020:55:120
99614210,0sleep10-21swapper/120:55:011
99328210,0sleep20-21swapper/220:51:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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