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2026-04-29 - 12:01
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Wed Apr 29, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
140432202188,10sleep10-21swapper/119:09:001
137812191173,13sleep30-21swapper/319:05:373
138822185169,12sleep00-21swapper/019:06:540
13795211193,13sleep20-21swapper/219:05:492
214732450,0sleep30-21swapper/322:33:543
287812440,0sleep10-21swapper/123:25:141
151552430,0sleep20-21swapper/200:05:332
141152430,0sleep30-21swapper/321:42:463
322792420,0sleep30-21swapper/323:26:153
130422420,0sleep10-21swapper/123:16:561
290822110,0sleep30-21swapper/300:12:563
13322110,0sleep10-21swapper/123:10:591
20772290,0sleep20-21swapper/223:20:262
142979965,1cyclictest20861-21ssh23:52:510
26039250,0sleep10-21swapper/122:51:301
14820250,0sleep30-21swapper/323:18:023
143119955,0cyclictest10550-21diskmemload23:35:473
143119951,3cyclictest8278-21tr20:00:133
143119951,2cyclictest0-21swapper/321:54:443
143119950,0cyclictest0-21swapper/322:19:153
143119950,0cyclictest0-21swapper/300:29:093
143069954,1cyclictest31-21ksoftirqd/220:40:132
143069954,1cyclictest2286-21kworker/u8:219:46:362
143069950,5cyclictest12058-21sh00:36:092
143069950,5cyclictest0-21swapper/223:41:512
143069950,5cyclictest0-21swapper/223:35:112
143069950,5cyclictest0-21swapper/222:42:462
143069950,5cyclictest0-21swapper/221:27:422
143069950,4cyclictest3115-21munin-run20:55:002
143069950,3cyclictest0-21swapper/221:21:172
143069950,0cyclictest0-21swapper/220:00:132
143029951,2cyclictest0-21swapper/123:00:121
143029951,2cyclictest0-21swapper/121:50:131
143029951,2cyclictest0-21swapper/120:20:121
143029950,5cyclictest0-21swapper/122:25:271
143029950,5cyclictest0-21swapper/121:25:301
142979955,0cyclictest0-21swapper/023:30:190
142979950,5cyclictest0-21swapper/020:29:530
29237240,1sleep10-21swapper/121:18:521
16009240,0sleep00-21swapper/021:43:570
143119944,0cyclictest26153-21kworker/3:219:39:373
143119944,0cyclictest26153-21kworker/3:219:28:243
143119944,0cyclictest10111-21kworker/3:123:45:543
143119944,0cyclictest10111-21kworker/3:120:46:463
143119944,0cyclictest10111-21kworker/3:120:13:113
143119944,0cyclictest0-21swapper/323:40:263
143119944,0cyclictest0-21swapper/321:35:173
143119944,0cyclictest0-21swapper/320:35:123
143119943,1cyclictest4549-21unixbench-2d00:00:223
143119943,1cyclictest13518-21tune2fs00:05:153
143119942,2cyclictest24290-21ssh22:50:263
143119942,1cyclictest802-21snmpd20:34:513
143119942,1cyclictest802-21snmpd00:37:373
143119942,1cyclictest26669-21ssh22:20:163
143119942,1cyclictest1501-21ssh22:40:093
143119941,3cyclictest802-21snmpd22:37:553
143119941,3cyclictest802-21snmpd20:15:233
143119941,3cyclictest0-21swapper/321:45:113
143119941,1cyclictest0-21swapper/323:30:123
143119940,4cyclictest912-21irqstats22:55:153
143119940,4cyclictest3210-21ssh21:21:283
143119940,4cyclictest1960-21memory20:50:163
143119940,4cyclictest10711-21apt-get00:20:113
143119940,4cyclictest10550-21diskmemload22:00:183
143119940,4cyclictest0-21swapper/323:50:183
143119940,4cyclictest0-21swapper/323:20:273
143119940,4cyclictest0-21swapper/323:10:343
143119940,4cyclictest0-21swapper/323:05:123
143119940,4cyclictest0-21swapper/322:46:223
143119940,4cyclictest0-21swapper/321:56:483
143119940,4cyclictest0-21swapper/321:30:123
143119940,4cyclictest0-21swapper/321:25:113
143119940,4cyclictest0-21swapper/321:15:523
143119940,4cyclictest0-21swapper/321:01:403
143119940,4cyclictest0-21swapper/300:15:113
143119940,3cyclictest4024-21cut22:25:143
143119940,3cyclictest27662-21ls19:35:003
143119940,3cyclictest24562-21ssh23:55:003
143119940,3cyclictest17813-21apt-get20:20:003
143119940,3cyclictest12299-21memory21:10:183
143119940,1cyclictest6503-21ntp_states22:10:183
143119940,1cyclictest17511-21ntp_states19:15:013
143119940,1cyclictest11668-21ntp_states23:00:173
143069943,1cyclictest6846-21wc19:55:182
143069943,1cyclictest5820-21cut22:10:142
143069943,1cyclictest29564-21grep19:35:212
143069943,1cyclictest12307-21sed23:00:202
143069941,2cyclictest0-21swapper/219:25:122
143069941,2cyclictest0-21swapper/200:30:122
143069941,2cyclictest0-21swapper/200:25:112
143069941,1cyclictest0-21swapper/221:35:122
143069941,1cyclictest0-21swapper/220:20:112
143069940,4cyclictest30621-21ssh22:54:212
143069940,4cyclictest22310-21hddtemp_smartct21:15:162
143069940,4cyclictest0-21swapper/223:25:122
143069940,4cyclictest0-21swapper/223:15:422
143069940,4cyclictest0-21swapper/222:55:122
143069940,4cyclictest0-21swapper/222:45:122
143069940,4cyclictest0-21swapper/222:26:572
143069940,4cyclictest0-21swapper/222:15:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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