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2026-05-12 - 10:56
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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 Tue May 12, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215482214198,11sleep10-21swapper/119:07:521
215732195179,11sleep00-21swapper/019:08:100
192532184166,14sleep30-21swapper/319:05:013
216572160143,13sleep20-21swapper/219:09:182
275222490,0sleep327524-21fschecks_time21:30:143
297742480,0sleep00-21swapper/023:05:230
281712450,0sleep00-21swapper/022:49:340
162622440,0sleep10-21swapper/100:02:451
178472110,0sleep00-21swapper/021:10:040
262552100,0sleep00-21swapper/019:15:140
127052100,0sleep30-21swapper/300:16:393
5478290,0sleep20-21swapper/222:54:162
218869981,6cyclictest0-21swapper/023:00:120
218869981,3cyclictest27469-21perf20:25:010
218869970,3cyclictest28256-21munin-run00:25:000
218959965,1cyclictest28919-21irqstats19:20:152
218909961,2cyclictest0-21swapper/123:05:121
218869961,5cyclictest24417-21kworker/0:223:32:560
218999955,0cyclictest17498-21diskmemload23:30:533
218999955,0cyclictest0-21swapper/323:11:153
218999950,5cyclictest17498-21diskmemload22:08:493
218999950,5cyclictest0-21swapper/320:50:243
218999950,0cyclictest15794-21entropy21:05:153
218999950,0cyclictest0-21swapper/322:03:523
218999950,0cyclictest0-21swapper/321:46:353
218959950,5cyclictest17215-21sed21:40:232
218959950,5cyclictest0-21swapper/223:48:262
218959950,5cyclictest0-21swapper/221:18:412
218959950,5cyclictest0-21swapper/219:50:142
218959950,0cyclictest10132-21ssh00:31:212
218909952,2cyclictest0-21swapper/122:15:111
218909951,2cyclictest0-21swapper/119:25:121
218909950,5cyclictest0-21swapper/122:53:591
218909950,5cyclictest0-21swapper/122:03:041
218909950,5cyclictest0-21swapper/121:19:341
218869955,0cyclictest0-21swapper/022:30:190
218869953,1cyclictest16205-21cat21:25:010
218869952,1cyclictest0-21swapper/019:40:120
218869951,4cyclictest16916-21munin-run23:00:000
218869951,2cyclictest0-21swapper/020:10:120
218869950,5cyclictest24417-21kworker/0:222:15:190
218869950,5cyclictest0-21swapper/021:15:510
218869950,5cyclictest0-21swapper/000:30:120
218869950,4cyclictest0-21swapper/023:35:110
218869950,0cyclictest0-21swapper/000:00:500
1436250,0sleep00-21swapper/020:35:170
218999944,0cyclictest0-21swapper/300:11:563
218999942,1cyclictest28364-21ssh22:33:363
218999942,1cyclictest21031-21ssh22:45:203
218999942,1cyclictest11206-21ssh21:38:023
218999941,3cyclictest18448-21grep20:05:143
218999941,1cyclictest0-21swapper/323:20:103
218999940,4cyclictest24039-21apt-get23:35:113
218999940,4cyclictest0-21swapper/323:55:123
218999940,4cyclictest0-21swapper/323:49:463
218999940,4cyclictest0-21swapper/323:15:023
218999940,4cyclictest0-21swapper/323:07:053
218999940,4cyclictest0-21swapper/323:02:513
218999940,4cyclictest0-21swapper/322:20:113
218999940,4cyclictest0-21swapper/322:12:403
218999940,4cyclictest0-21swapper/321:42:143
218999940,4cyclictest0-21swapper/321:27:233
218999940,4cyclictest0-21swapper/321:22:133
218999940,4cyclictest0-21swapper/321:16:213
218999940,4cyclictest0-21swapper/320:10:123
218999940,4cyclictest0-21swapper/300:39:183
218999940,4cyclictest0-21swapper/300:08:173
218999940,3cyclictest4133-21hddtemp_smartct21:50:133
218999940,3cyclictest2948-21ssh23:40:153
218999940,3cyclictest29390-21df_inode00:25:153
218999940,3cyclictest27868-21chmod19:20:003
218999940,3cyclictest26640-21ssh00:24:003
218999940,3cyclictest24440-21cat19:15:013
218999940,3cyclictest18627-21diskstats21:10:143
218999940,3cyclictest17498-21diskmemload22:15:053
218999940,3cyclictest13276-21ssh21:55:033
218999940,3cyclictest10592-21sh23:28:173
218999940,1cyclictest2453-21munin-run20:40:013
218959944,0cyclictest31-21ksoftirqd/223:55:142
218959944,0cyclictest31-21ksoftirqd/222:20:132
218959944,0cyclictest31-21ksoftirqd/221:30:142
218959944,0cyclictest31-21ksoftirqd/219:15:012
218959944,0cyclictest0-21swapper/200:19:252
218959942,1cyclictest22878-21ssh22:46:192
218959940,4cyclictest4658-21hddtemp_smartct23:25:152
218959940,4cyclictest4020-21taskset22:05:242
218959940,4cyclictest18780-21perl21:10:152
218959940,4cyclictest0-21swapper/223:35:102
218959940,4cyclictest0-21swapper/223:15:112
218959940,4cyclictest0-21swapper/222:14:122
218959940,4cyclictest0-21swapper/200:24:202
218959940,3cyclictest8869-21irqstats19:45:172
218959940,3cyclictest23791-21taskset22:00:042
218959940,3cyclictest23446-21/usr/sbin/munin23:50:162
218959940,3cyclictest2097-21sh23:24:202
218959940,3cyclictest17544-21latency_hist20:05:002
218959940,3cyclictest16797-21ssh00:03:042
218959940,3cyclictest14802-21hddtemp_smartct23:30:152
218959940,3cyclictest11897-21date23:45:012
218959940,1cyclictest32372-21cp22:20:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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