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2026-04-23 - 12:08
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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 Thu Apr 23, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
103032199183,11sleep10-21swapper/119:09:071
101872194179,11sleep00-21swapper/019:07:380
102882190174,11sleep30-21swapper/319:08:573
100402155137,13sleep20-21swapper/219:05:432
118172530,0sleep20-21swapper/223:35:112
221632500,0sleep01056099cyclictest23:08:030
221632500,0sleep01056099cyclictest23:08:020
156062480,0sleep30-21swapper/322:16:583
128502430,0sleep20-21swapper/222:47:272
130352350,1sleep11056199cyclictest21:28:511
129052110,0sleep00-21swapper/023:19:470
99412100,0sleep20-21swapper/220:10:162
317122100,0sleep30-21swapper/320:55:133
14074290,0sleep10-21swapper/122:00:181
105609993,3cyclictest9560-21awk23:50:000
105689960,5cyclictest0-21swapper/321:25:113
105639961,4cyclictest0-21swapper/220:40:112
105609960,1cyclictest3173-21date23:15:010
105689955,0cyclictest40-21ksoftirqd/320:30:003
105689955,0cyclictest2646-21kworker/3:023:54:003
105689955,0cyclictest2646-21kworker/3:022:46:493
105689955,0cyclictest2646-21kworker/3:020:10:053
105689955,0cyclictest2646-21kworker/3:000:38:473
105689954,1cyclictest0-21swapper/323:45:373
105689950,5cyclictest0-21swapper/323:19:033
105689950,5cyclictest0-21swapper/322:30:153
105689950,5cyclictest0-21swapper/321:51:253
105689950,4cyclictest0-21swapper/319:45:113
105689950,0cyclictest5966-21diskmemload23:42:343
105689950,0cyclictest0-21swapper/323:10:253
105689950,0cyclictest0-21swapper/300:30:263
105639955,0cyclictest0-21swapper/223:11:192
105639950,0cyclictest0-21swapper/222:33:192
105639950,0cyclictest0-21swapper/221:35:422
105619952,1cyclictest0-21swapper/123:15:121
105619951,3cyclictest0-21swapper/123:55:101
105619951,3cyclictest0-21swapper/122:40:131
105619951,3cyclictest0-21swapper/122:05:111
105619951,3cyclictest0-21swapper/120:45:101
105619951,2cyclictest0-21swapper/123:45:121
105619951,2cyclictest0-21swapper/121:55:111
105619951,2cyclictest0-21swapper/121:05:121
105619951,2cyclictest0-21swapper/100:30:111
105619950,5cyclictest0-21swapper/120:06:091
105619950,4cyclictest0-21swapper/122:10:121
105609955,0cyclictest0-21swapper/022:57:330
105609955,0cyclictest0-21swapper/022:03:080
105609954,1cyclictest13474-21ssh00:23:420
105609953,1cyclictest25407-21cron21:35:010
105609950,5cyclictest0-21swapper/023:55:460
105609950,5cyclictest0-21swapper/021:16:180
105609950,0cyclictest3850-21ssh00:02:440
105609950,0cyclictest0-21swapper/023:44:590
105689944,0cyclictest31421-21apt-get22:25:123
105689944,0cyclictest2646-21kworker/3:023:20:243
105689944,0cyclictest2646-21kworker/3:022:35:393
105689944,0cyclictest2646-21kworker/3:020:54:523
105689944,0cyclictest2646-21kworker/3:020:21:183
105689944,0cyclictest0-21swapper/323:37:113
105689944,0cyclictest0-21swapper/322:56:003
105689944,0cyclictest0-21swapper/300:28:073
105689943,1cyclictest26590-21tr19:40:123
105689942,1cyclictest9988-21ssh22:14:463
105689942,1cyclictest25855-21ssh21:35:013
105689942,1cyclictest2115-21smartctl19:55:153
105689942,1cyclictest18588-21if_eth022:50:153
105689942,1cyclictest10744-21wget19:10:103
105689941,3cyclictest8808-21ssh00:05:153
105689940,4cyclictest4994-21ntp_states21:05:183
105689940,4cyclictest11179-21apt-get20:15:123
105689940,4cyclictest0-21swapper/323:58:513
105689940,4cyclictest0-21swapper/323:31:543
105689940,4cyclictest0-21swapper/323:25:203
105689940,4cyclictest0-21swapper/323:08:283
105689940,4cyclictest0-21swapper/323:08:273
105689940,4cyclictest0-21swapper/323:02:123
105689940,4cyclictest0-21swapper/322:06:333
105689940,4cyclictest0-21swapper/322:00:123
105689940,4cyclictest0-21swapper/321:55:113
105689940,4cyclictest0-21swapper/321:43:403
105689940,4cyclictest0-21swapper/321:24:493
105689940,4cyclictest0-21swapper/320:35:163
105689940,4cyclictest0-21swapper/320:05:183
105689940,4cyclictest0-21swapper/300:20:113
105689940,4cyclictest0-21swapper/300:18:013
105689940,3cyclictest6488-21apt21:10:123
105689940,3cyclictest31599-21cstates19:50:143
105689940,3cyclictest29454-21sh22:40:063
105689940,3cyclictest26742-21apt-config21:20:023
105689940,3cyclictest24323-21df_inode19:35:133
105689940,3cyclictest24305-21/usr/sbin/munin20:40:133
105689940,3cyclictest21124-21apt22:20:103
105689940,3cyclictest19548-21ntpq00:10:173
105689940,3cyclictest1188-21ssh00:01:063
105639944,0cyclictest0-21swapper/223:00:412
105639944,0cyclictest0-21swapper/222:53:512
105639944,0cyclictest0-21swapper/222:02:292
105639944,0cyclictest0-21swapper/221:42:242
105639944,0cyclictest0-21swapper/221:29:022
105639944,0cyclictest0-21swapper/200:12:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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