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2026-04-19 - 07:54
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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 Sun Apr 19, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
49112204190,10sleep10-21swapper/119:08:361
27972189173,12sleep00-21swapper/019:05:060
27952187170,13sleep30-21swapper/319:05:053
50192175158,12sleep20-21swapper/219:09:572
315712450,0sleep10-21swapper/100:03:001
303712450,0sleep20-21swapper/200:34:322
269492450,0sleep10-21swapper/121:38:001
218122430,0sleep20-21swapper/221:50:502
167172430,0sleep10-21swapper/122:20:161
103722410,1sleep210367-21unixbench_singl19:15:212
140192110,0sleep00-21swapper/021:31:230
30283290,0sleep30-21swapper/300:34:293
12092290,0sleep20-21swapper/222:34:142
51919965,1cyclictest0-21swapper/022:09:150
51919965,0cyclictest3-21ksoftirqd/022:40:100
51919960,3cyclictest803-21diskmemload22:25:000
4186260,0sleep20-21swapper/220:10:142
23946260,0sleep00-21swapper/021:52:080
15792260,5sleep216233-21diskstats22:20:142
52069955,0cyclictest19573-21kworker/3:221:33:523
52069955,0cyclictest19573-21kworker/3:200:21:473
52069955,0cyclictest19573-21kworker/3:200:10:353
52069955,0cyclictest0-21swapper/321:44:493
52069955,0cyclictest0-21swapper/300:35:383
52069950,5cyclictest0-21swapper/322:00:233
52069950,5cyclictest0-21swapper/300:19:123
52069950,5cyclictest0-21swapper/300:05:113
52069950,4cyclictest0-21swapper/320:00:133
52069950,3cyclictest5956-21ssh21:11:543
52019955,0cyclictest0-21swapper/222:43:342
52019950,5cyclictest0-21swapper/223:22:072
52019950,5cyclictest0-21swapper/200:35:352
52019950,5cyclictest0-21swapper/200:15:492
52019950,4cyclictest17141-21ssh22:05:052
51969950,5cyclictest0-21swapper/123:58:301
51969950,5cyclictest0-21swapper/122:20:001
51969950,5cyclictest0-21swapper/122:12:351
51969950,5cyclictest0-21swapper/100:28:301
51919955,0cyclictest0-21swapper/021:27:130
51919955,0cyclictest0-21swapper/021:27:120
51919953,1cyclictest0-21swapper/019:10:110
51919952,3cyclictest32211-21munin-run23:00:000
51919952,3cyclictest22837-21perf00:15:000
51919950,5cyclictest0-21swapper/023:54:360
51919950,5cyclictest0-21swapper/023:35:580
51919950,5cyclictest0-21swapper/023:15:110
51919950,5cyclictest0-21swapper/022:50:100
51919950,5cyclictest0-21swapper/000:35:200
51919950,4cyclictest4660-21sh22:45:360
52069944,0cyclictest19573-21kworker/3:223:59:233
52069944,0cyclictest19573-21kworker/3:223:25:483
52069944,0cyclictest0-21swapper/323:40:033
52069944,0cyclictest0-21swapper/323:10:493
52069944,0cyclictest0-21swapper/322:15:573
52069944,0cyclictest0-21swapper/320:55:203
52069944,0cyclictest0-21swapper/320:30:013
52069943,1cyclictest876-21apt-get20:05:133
52069942,1cyclictest13577-21ssh22:35:013
52069942,1cyclictest1267-21netstat21:25:163
52069942,1cyclictest1267-21netstat21:25:163
52069941,3cyclictest24683-21taskset21:52:353
52069941,3cyclictest0-21swapper/323:48:323
52069941,2cyclictest18411-21latency_hist20:40:003
52069940,4cyclictest8320-21apt-get20:20:103
52069940,4cyclictest23114-21df_inode22:55:143
52069940,4cyclictest11634-21/usr/sbin/munin21:15:193
52069940,4cyclictest0-21swapper/323:37:563
52069940,4cyclictest0-21swapper/323:30:113
52069940,4cyclictest0-21swapper/322:30:103
52069940,4cyclictest0-21swapper/321:20:183
52069940,4cyclictest0-21swapper/319:25:123
52069940,4cyclictest0-21swapper/319:15:123
52069940,4cyclictest0-21swapper/300:25:133
52069940,3cyclictest488-21cpuspeed23:00:143
52069940,3cyclictest30654-21ssh23:15:013
52069940,3cyclictest28164-21ssh21:38:443
52069940,3cyclictest26715-21head22:25:143
52069940,3cyclictest25752-21cut19:50:003
52069940,3cyclictest23592-21ssh22:23:563
52069940,3cyclictest23068-21ssh22:07:353
52069940,3cyclictest18617-21/usr/sbin/munin20:40:103
52069940,3cyclictest18553-21sed21:50:013
52069940,1cyclictest28396-21tr19:55:113
52069940,1cyclictest23555-21/usr/sbin/munin20:50:173
52069940,0cyclictest0-21swapper/322:47:143
52019944,0cyclictest0-21swapper/200:06:212
52019944,0cyclictest0-21swapper/200:00:492
52019942,1cyclictest16977-21ssh23:40:112
52019942,1cyclictest10313-21ssh23:36:142
52019941,1cyclictest0-21swapper/222:50:102
52019941,1cyclictest0-21swapper/200:10:112
52019940,4cyclictest876-21apt-get20:05:122
52019940,4cyclictest803-21diskmemload23:55:132
52019940,4cyclictest31283-21cstates21:40:132
52019940,4cyclictest29042-21apt-get23:30:112
52019940,4cyclictest20307-21ntp_states23:25:182
52019940,4cyclictest0-21swapper/223:50:072
52019940,4cyclictest0-21swapper/223:45:092
52019940,4cyclictest0-21swapper/223:17:022
52019940,4cyclictest0-21swapper/223:10:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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