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2026-07-04 - 19:36
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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 Sat Jul 04, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213852199184,10sleep10-21swapper/107:10:001
211492190174,11sleep30-21swapper/307:07:003
210542178161,12sleep00-21swapper/007:05:460
210392156138,13sleep20-21swapper/207:05:362
295592470,0sleep029561-21unixbench_singl08:25:200
187552460,0sleep10-21swapper/110:14:351
267122430,0sleep10-21swapper/111:55:111
184072390,0sleep20-21swapper/212:23:032
248212370,1sleep32157899cyclictest11:54:093
31822130,0sleep20-21swapper/212:31:202
30522100,0sleep10-21swapper/110:54:581
189312100,1sleep1211ktimersoftd/111:50:271
9776290,0sleep20-21swapper/209:54:022
25269290,0sleep10-21swapper/109:45:171
215719982,3cyclictest3273-21munin-run09:35:010
215719980,4cyclictest14905-21munin-run09:05:000
215719971,3cyclictest1254-21munin-run09:50:010
215719962,4cyclictest5316-21idleruntime-cro10:40:010
17218260,0sleep20-21swapper/209:57:232
215789955,0cyclictest29850-21kworker/3:212:38:593
215789955,0cyclictest0-21swapper/307:10:163
215789952,2cyclictest0-21swapper/308:40:113
215789950,5cyclictest0-21swapper/310:53:303
215789950,5cyclictest0-21swapper/309:58:213
215789950,4cyclictest30230-21apt-get08:30:123
215789950,1cyclictest29866-21/usr/sbin/munin07:25:203
215749950,5cyclictest0-21swapper/210:29:052
215749950,0cyclictest0-21swapper/210:24:522
215729953,1cyclictest5154-21chrt12:32:351
215729953,1cyclictest24811-21chrt08:17:201
215729952,2cyclictest153112sleep111:32:581
215729952,2cyclictest0-21swapper/107:45:011
215729951,3cyclictest0-21swapper/109:15:111
215729951,2cyclictest0-21swapper/112:00:111
215729951,2cyclictest0-21swapper/110:20:111
215729951,2cyclictest0-21swapper/109:25:121
215729951,2cyclictest0-21swapper/108:20:131
215729950,5cyclictest0-21swapper/111:01:331
215729950,0cyclictest0-21swapper/111:21:291
215719955,0cyclictest14201-21dpkg12:05:010
215719950,5cyclictest0-21swapper/011:03:020
215719950,5cyclictest0-21swapper/009:44:280
14025250,0sleep30-21swapper/311:15:423
910240,0sleep00-21swapper/007:30:170
28973240,0sleep20-21swapper/209:47:072
26743240,0sleep10-21swapper/110:34:291
215789944,0cyclictest29850-21kworker/3:212:05:243
215789944,0cyclictest24129-21kworker/3:010:47:043
215789944,0cyclictest1068-21kworker/3:111:09:283
215789944,0cyclictest0-21swapper/309:26:463
215789944,0cyclictest0-21swapper/307:55:143
215789943,1cyclictest32590-21cpuspeed07:30:123
215789943,1cyclictest32270-21grep11:25:143
215789943,1cyclictest28866-21tune2fs10:35:163
215789943,1cyclictest21508-21wc08:10:163
215789941,3cyclictest802-21snmpd10:34:543
215789941,1cyclictest0-21swapper/307:20:113
215789940,4cyclictest9714-21ssh11:45:563
215789940,4cyclictest0-21swapper/312:31:173
215789940,4cyclictest0-21swapper/311:35:083
215789940,4cyclictest0-21swapper/311:20:043
215789940,4cyclictest0-21swapper/311:10:123
215789940,4cyclictest0-21swapper/310:15:133
215789940,4cyclictest0-21swapper/309:44:183
215789940,4cyclictest0-21swapper/309:05:123
215789940,4cyclictest0-21swapper/308:35:113
215789940,4cyclictest0-21swapper/307:45:123
215789940,3cyclictest802-21snmpd11:00:013
215789940,3cyclictest7454-21grep09:20:203
215789940,3cyclictest6729-21sh09:35:543
215789940,3cyclictest5071-21ntpq10:55:173
215789940,3cyclictest32567-21chrt09:33:053
215789940,3cyclictest32164-21ssh10:05:123
215789940,3cyclictest3164-21sh10:22:203
215789940,3cyclictest25249-21grep12:10:143
215789940,3cyclictest23975-21cut08:15:173
215789940,3cyclictest23395-21/usr/sbin/munin12:25:183
215789940,3cyclictest18167-21df08:05:133
215789940,3cyclictest17635-21sh09:10:033
215789940,3cyclictest13249-21ssh10:43:413
215789940,1cyclictest9920-21head11:30:153
215789940,1cyclictest9445-21ntpq10:25:203
215789940,1cyclictest21942-21/usr/sbin/munin10:00:163
215789940,1cyclictest12658-21/usr/sbin/munin09:00:163
215789940,0cyclictest0-21swapper/311:42:053
215789940,0cyclictest0-21swapper/309:50:293
215749944,0cyclictest31-21ksoftirqd/210:55:152
215749944,0cyclictest0-21swapper/212:00:092
215749944,0cyclictest0-21swapper/211:56:582
215749942,2cyclictest802-21snmpd11:47:222
215749942,2cyclictest30748-21kworker/2:211:50:132
215749942,2cyclictest30748-21kworker/2:208:04:452
215749942,1cyclictest24027-21ssh09:12:512
215749940,4cyclictest27756-21apt-get08:25:112
215749940,4cyclictest20184-21apt-get10:15:122
215749940,4cyclictest1402-21systemctl07:30:192
215749940,4cyclictest0-21swapper/212:25:132
215749940,4cyclictest0-21swapper/211:40:122
215749940,4cyclictest0-21swapper/211:35:302
215749940,4cyclictest0-21swapper/211:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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