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2026-05-11 - 22:25
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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 Mon May 11, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
223102197182,11sleep10-21swapper/107:08:121
223102197182,11sleep10-21swapper/107:08:111
224302188168,15sleep00-21swapper/007:09:440
224302188168,15sleep00-21swapper/007:09:440
221052180163,12sleep30-21swapper/307:05:323
221052180163,12sleep30-21swapper/307:05:323
22405211195,12sleep20-21swapper/207:09:252
22405211195,12sleep20-21swapper/207:09:252
156652480,0sleep20-21swapper/210:26:572
277622460,0sleep10-21swapper/111:05:071
98262450,0sleep10-21swapper/112:31:271
226219980,4cyclictest10493-21awk10:25:020
226219970,7cyclictest0-21swapper/010:40:110
226379960,5cyclictest0-21swapper/310:00:133
226219962,4cyclictest25497-21munin-run08:20:000
226379955,0cyclictest4810-21kworker/3:212:11:043
226379955,0cyclictest0-21swapper/311:14:573
226379955,0cyclictest0-21swapper/309:57:153
226379953,1cyclictest32424-21sh10:20:013
226379953,1cyclictest32424-21sh10:20:013
226379951,4cyclictest0-21swapper/308:05:113
226379951,3cyclictest28561-21chmod08:25:003
226379950,5cyclictest0-21swapper/312:05:003
226379950,5cyclictest0-21swapper/309:10:253
226379950,4cyclictest0-21swapper/312:15:133
226379950,0cyclictest18240-21diskmemload11:30:223
226379950,0cyclictest0-21swapper/309:36:023
226329954,1cyclictest5568-21sh11:57:372
226329954,1cyclictest0-21swapper/212:22:042
226329950,5cyclictest0-21swapper/212:37:372
226329950,5cyclictest0-21swapper/212:13:102
226329950,5cyclictest0-21swapper/211:47:162
226329950,5cyclictest0-21swapper/209:36:282
226279950,5cyclictest0-21swapper/110:48:321
226279950,5cyclictest0-21swapper/110:11:421
226279950,0cyclictest0-21swapper/111:59:221
226219952,2cyclictest61-21kswapd012:05:120
226219951,4cyclictest25195-21kworker/0:108:55:120
226219950,5cyclictest0-21swapper/011:59:430
226219950,5cyclictest0-21swapper/010:45:230
226219950,4cyclictest22204-21apt10:15:010
226219950,4cyclictest0-21swapper/007:30:110
226219950,4cyclictest0-21swapper/007:20:120
226219950,0cyclictest0-21swapper/010:58:370
226219950,0cyclictest0-21swapper/008:05:190
226379944,0cyclictest4810-21kworker/3:211:15:033
226379944,0cyclictest0-21swapper/312:39:473
226379944,0cyclictest0-21swapper/312:23:293
226379944,0cyclictest0-21swapper/311:45:053
226379944,0cyclictest0-21swapper/310:41:123
226379943,1cyclictest11248-21grep10:25:143
226379942,1cyclictest802-21snmpd08:34:113
226379942,1cyclictest628-21ssh10:20:073
226379942,1cyclictest3619-21ssh09:50:013
226379942,1cyclictest28283-21diskstats09:30:143
226379942,1cyclictest15823-21cut08:00:003
226379940,4cyclictest8415-21apt-get07:45:123
226379940,4cyclictest2716-21perl11:40:143
226379940,4cyclictest16668-21perl09:05:153
226379940,4cyclictest0-21swapper/312:25:113
226379940,4cyclictest0-21swapper/312:02:303
226379940,4cyclictest0-21swapper/311:55:113
226379940,4cyclictest0-21swapper/310:58:053
226379940,4cyclictest0-21swapper/310:30:133
226379940,4cyclictest0-21swapper/310:05:133
226379940,4cyclictest0-21swapper/309:40:123
226379940,4cyclictest0-21swapper/308:55:333
226379940,4cyclictest0-21swapper/308:46:413
226379940,4cyclictest0-21swapper/307:50:123
226379940,4cyclictest0-21swapper/307:40:123
226379940,4cyclictest0-21swapper/307:24:553
226379940,3cyclictest8900-21cut10:40:013
226379940,3cyclictest6882-21ssh11:25:573
226379940,3cyclictest6497-21ssh09:50:373
226379940,3cyclictest6072-21latency_hist08:45:013
226379940,3cyclictest4726-21ntp_states07:35:163
226379940,3cyclictest30193-21df_inode10:50:143
226379940,3cyclictest27691-21ssh11:20:203
226379940,3cyclictest25480-21irqstats07:15:023
226379940,3cyclictest20779-21/usr/sbin/munin08:10:173
226379940,3cyclictest1529-21ls11:40:003
226379940,1cyclictest28563-21chrt11:53:023
226379940,1cyclictest16037-21ssh09:24:283
226329944,0cyclictest0-21swapper/211:36:562
226329944,0cyclictest0-21swapper/210:55:022
226329943,1cyclictest9841-21ntp_states08:50:172
226329943,1cyclictest28469-21/usr/sbin/munin07:20:142
226329943,1cyclictest24983-21sed08:15:172
226329943,1cyclictest22855-21ssh12:05:452
226329942,2cyclictest29084-21fschecks_time12:25:152
226329942,2cyclictest24188-21kworker/2:208:04:522
226329942,2cyclictest0-21swapper/209:45:192
226329942,1cyclictest4396-21ssh11:09:352
226329942,1cyclictest0-21swapper/207:55:122
226329940,4cyclictest26063-21apt-get11:20:112
226329940,4cyclictest2207-21ssh09:17:202
226329940,4cyclictest11777-21ssh11:28:592
226329940,4cyclictest0-21swapper/210:07:152
226329940,4cyclictest0-21swapper/209:42:042
226329940,4cyclictest0-21swapper/209:10:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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