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2026-05-28 - 15:52
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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 rackaslot8.osadl.org (updated Thu May 28, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228002310281,19sleep20-21swapper/207:09:282
225662278248,20sleep10-21swapper/107:06:341
226672265240,16sleep30-21swapper/307:07:523
227122260229,20sleep00-21swapper/007:08:270
132962630,0sleep10-21swapper/111:25:131
166452600,0sleep00-21swapper/010:10:010
217652580,0sleep00-21swapper/009:53:190
43222560,0sleep10-21swapper/110:01:561
131462540,0sleep30-21swapper/310:26:213
52382190,0sleep30-21swapper/309:24:343
184062180,0sleep20-21swapper/211:28:192
10622180,0sleep10-21swapper/110:58:221
318892150,0sleep30-21swapper/309:59:393
281112150,0sleep00-21swapper/012:12:210
212812130,0sleep10-21swapper/109:33:541
192952130,0sleep00-21swapper/011:47:580
229639994,3cyclictest16335-21basename08:05:012
4199280,0sleep10-21swapper/112:36:241
26073280,0sleep20-21swapper/207:15:122
229689985,2cyclictest13184-21ls09:10:013
229689984,3cyclictest14740-21diskstats08:00:143
229689983,3cyclictest275-21systemd-journal09:00:113
229689983,3cyclictest275-21systemd-journal07:34:383
229689980,7cyclictest21491-21ssh10:12:193
229599985,2cyclictest22-21ksoftirqd/108:40:011
229599982,3cyclictest2568-21munin-run07:35:001
229549984,3cyclictest275-21systemd-journal09:45:100
229549984,1cyclictest32763-21perf07:30:010
229549982,4cyclictest23006-21munin-run08:20:000
229549980,7cyclictest6081-21ssh11:00:480
7466270,0sleep10-21swapper/109:25:161
4736270,0sleep00-21swapper/010:02:150
324270,0sleep10-21swapper/110:19:341
26714270,0sleep00-21swapper/010:35:110
229689976,1cyclictest0-21swapper/309:14:493
229689976,1cyclictest0-21swapper/309:14:483
229689973,3cyclictest275-21systemd-journal08:19:413
229689973,2cyclictest275-21systemd-journal10:00:013
229689972,5cyclictest10948-21kworker/3:110:22:033
229689972,5cyclictest10948-21kworker/3:110:05:153
229689972,5cyclictest10948-21kworker/3:109:19:303
229689971,5cyclictest658-21snmpd11:22:283
229639976,1cyclictest28-21ksoftirqd/209:50:012
229639973,3cyclictest658-21snmpd11:39:222
229639973,3cyclictest504-21dbus-daemon10:20:192
229639973,3cyclictest275-21systemd-journal12:10:362
229639973,3cyclictest24412-21sshd11:50:282
229639973,2cyclictest275-21systemd-journal10:12:222
229639973,1cyclictest0-21swapper/209:31:332
229639972,4cyclictest0-21swapper/212:25:122
229599975,2cyclictest22-21ksoftirqd/109:00:001
229599974,2cyclictest275-21systemd-journal08:50:221
229599973,3cyclictest674-21lldpd10:35:101
229599973,3cyclictest504-21dbus-daemon11:21:421
229599973,3cyclictest504-21dbus-daemon09:22:221
229599972,1cyclictest0-21swapper/110:40:111
229599970,4cyclictest32766-21basename07:30:011
229599970,4cyclictest24561-21munin-run12:30:001
229549974,2cyclictest275-21systemd-journal10:14:360
229549973,3cyclictest658-21snmpd12:18:260
229549973,3cyclictest658-21snmpd07:57:000
229549973,3cyclictest275-21systemd-journal11:38:220
229549972,3cyclictest1759-21perf08:45:000
229549970,4cyclictest17932-21idleruntime-cro10:30:010
229549970,2cyclictest275-21systemd-journal11:55:010
19543270,0sleep334-21ksoftirqd/310:50:113
19281270,0sleep20-21swapper/210:50:102
2522260,1sleep22568-21apt-get10:40:102
24984260,1sleep30-21swapper/311:50:543
229689966,0cyclictest0-21swapper/311:44:053
229689963,2cyclictest7058-21chrt07:40:523
229689963,2cyclictest6783-21/usr/sbin/munin12:00:113
229689963,2cyclictest658-21snmpd08:55:053
229689963,2cyclictest658-21snmpd07:53:243
229689963,2cyclictest5921-21ssh10:41:333
229689963,2cyclictest504-21dbus-daemon08:50:323
229689963,2cyclictest504-21dbus-daemon08:45:003
229689963,2cyclictest504-21dbus-daemon07:17:013
229689963,2cyclictest501-21in:imuxsock08:25:563
229689963,2cyclictest32651-21head12:15:133
229689963,2cyclictest28093-21ssh10:15:573
229689963,2cyclictest17883-21cat08:05:193
229689963,2cyclictest17374-21ssh12:05:343
229689963,2cyclictest12100-21fschecks_time11:05:133
229689962,4cyclictest24332-21kworker/3:012:21:583
229689962,4cyclictest24332-21kworker/3:011:45:353
229689962,4cyclictest24332-21kworker/3:011:10:033
229689962,4cyclictest24332-21kworker/3:011:10:033
229689962,4cyclictest24332-21kworker/3:010:55:153
229689962,4cyclictest10948-21kworker/3:109:50:083
229689962,3cyclictest658-21snmpd12:36:573
229689962,3cyclictest658-21snmpd09:45:013
229689962,3cyclictest658-21snmpd07:26:323
229689962,3cyclictest3247-21ls08:45:203
229689962,3cyclictest30176-21cat08:35:133
229689962,3cyclictest28447-21ls11:15:133
229689962,3cyclictest24090-21entropy12:10:123
229689962,3cyclictest11550-21cut10:45:143
229689962,1cyclictest0-21swapper/312:26:223
229689962,1cyclictest0-21swapper/311:01:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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