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2026-09-04 - 04:50
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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 Fri Sep 04, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179962202185,12sleep30-21swapper/319:08:093
180192192176,11sleep10-21swapper/119:08:271
179362186168,13sleep00-21swapper/019:07:210
180722160141,14sleep20-21swapper/219:09:092
51502470,0sleep30-21swapper/321:37:143
72192420,0sleep10-21swapper/122:43:561
283412420,0sleep10-21swapper/123:10:231
312672130,0sleep30-21swapper/300:18:063
3495270,0sleep00-21swapper/022:58:220
183139971,5cyclictest0-21swapper/320:05:133
183139971,5cyclictest0-21swapper/320:05:123
183039971,5cyclictest0-21swapper/023:35:140
183139962,4cyclictest0-21swapper/323:10:233
183139960,5cyclictest0-21swapper/321:20:143
183139960,1cyclictest0-21swapper/319:45:143
183139955,0cyclictest20889-21kworker/3:222:56:303
183139952,3cyclictest15048-21apt-get00:10:103
183139952,3cyclictest0-21swapper/323:00:073
183139952,3cyclictest0-21swapper/322:30:163
183139952,3cyclictest0-21swapper/321:50:203
183139950,5cyclictest31289-21rm22:39:563
183139950,5cyclictest3119-21grep22:25:143
183139950,5cyclictest23444-21ssh23:08:273
183139950,5cyclictest20009-21ssh23:23:023
183139950,5cyclictest0-21swapper/323:56:353
183139950,5cyclictest0-21swapper/323:46:263
183139950,5cyclictest0-21swapper/322:42:083
183139950,5cyclictest0-21swapper/321:48:093
183139950,5cyclictest0-21swapper/319:10:233
183139950,5cyclictest0-21swapper/300:05:193
183139950,4cyclictest27857-21ssh00:00:123
183139950,0cyclictest0-21swapper/320:35:133
183139950,0cyclictest0-21swapper/300:20:353
183099955,0cyclictest0-21swapper/222:27:392
183099950,5cyclictest0-21swapper/200:03:412
183099950,4cyclictest0-21swapper/220:50:112
183049951,2cyclictest0-21swapper/123:05:101
183049951,2cyclictest0-21swapper/119:45:131
183049950,5cyclictest0-21swapper/121:58:551
183039953,1cyclictest6775-21/usr/sbin/munin19:50:210
183039952,1cyclictest0-21swapper/020:40:100
183039950,5cyclictest26783-21apt-get20:30:090
183039950,5cyclictest0-21swapper/023:44:250
183039950,5cyclictest0-21swapper/020:05:020
183039950,5cyclictest0-21swapper/020:05:010
183039950,4cyclictest9244-21/usr/sbin/munin19:55:130
9278240,0sleep20-21swapper/221:23:332
25927240,0sleep30-21swapper/321:31:093
183139944,0cyclictest20889-21kworker/3:222:22:553
183139944,0cyclictest0-21swapper/322:15:393
183139943,1cyclictest7148-21tr20:55:133
183139943,1cyclictest22820-21grep19:15:153
183139942,2cyclictest9452-21cpuspeed19:55:143
183139942,1cyclictest29020-21latency_hist20:35:013
183139941,3cyclictest27705-21aten2_r5power_v22:05:153
183139941,3cyclictest0-21swapper/323:25:073
183139941,3cyclictest0-21swapper/319:35:193
183139941,2cyclictest0-21swapper/319:30:133
183139940,4cyclictest32088-21ssh21:18:453
183139940,4cyclictest0-21swapper/323:40:133
183139940,4cyclictest0-21swapper/323:35:143
183139940,4cyclictest0-21swapper/323:30:163
183139940,4cyclictest0-21swapper/322:10:163
183139940,4cyclictest0-21swapper/322:00:113
183139940,4cyclictest0-21swapper/321:55:123
183139940,4cyclictest0-21swapper/321:40:313
183139940,4cyclictest0-21swapper/321:10:143
183139940,4cyclictest0-21swapper/300:31:153
183139940,3cyclictest7938-21sh23:50:013
183139940,3cyclictest19932-21df22:50:183
183139940,3cyclictest1746-21rm00:35:353
183139940,3cyclictest14749-21ssh00:25:423
183139940,3cyclictest11955-21apt-config21:25:013
183139940,3cyclictest10793-21cut21:00:193
183139940,3cyclictest0-21swapper/320:45:143
183139940,0cyclictest0-21swapper/322:48:043
183099944,0cyclictest0-21swapper/223:05:032
183099944,0cyclictest0-21swapper/222:36:492
183099944,0cyclictest0-21swapper/221:48:132
183099943,1cyclictest3711-21ntp_states00:20:162
183099942,2cyclictest15419-21kworker/2:100:25:042
183099942,1cyclictest16503-21ssh21:10:192
183099941,1cyclictest0-21swapper/219:50:122
183099940,4cyclictest26114-21ntp_states21:15:172
183099940,4cyclictest21982-21apt-get00:30:152
183099940,4cyclictest17212-21grep20:10:122
183099940,4cyclictest15971-21hddtemp_smartct00:10:142
183099940,4cyclictest15431-21df22:15:132
183099940,4cyclictest12678-21perl21:05:152
183099940,4cyclictest0-21swapper/223:59:342
183099940,4cyclictest0-21swapper/223:51:252
183099940,4cyclictest0-21swapper/223:45:042
183099940,4cyclictest0-21swapper/223:44:432
183099940,4cyclictest0-21swapper/223:35:022
183099940,4cyclictest0-21swapper/223:25:252
183099940,4cyclictest0-21swapper/223:23:552
183099940,4cyclictest0-21swapper/223:16:592
183099940,4cyclictest0-21swapper/223:00:012
183099940,4cyclictest0-21swapper/222:55:102
183099940,4cyclictest0-21swapper/222:48:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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