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2026-06-26 - 20:41
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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 Fri Jun 26, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228502320293,18sleep10-21swapper/107:07:021
230552296266,19sleep20-21swapper/207:09:242
229272260230,19sleep00-21swapper/007:08:010
229582256227,19sleep30-21swapper/307:08:253
268202640,0sleep10-21swapper/111:54:171
26352610,0sleep30-21swapper/309:41:513
115572580,0sleep00-21swapper/011:45:030
152412570,0sleep20-21swapper/211:46:402
147562570,0sleep00-21swapper/012:05:480
147562570,0sleep00-21swapper/012:05:480
141582520,0sleep00-21swapper/011:07:020
218222180,0sleep10-21swapper/109:34:281
62762140,0sleep30-21swapper/311:41:083
197572130,0sleep10-21swapper/110:11:491
2319799107,2cyclictest22-21ksoftirqd/108:15:011
231969993,3cyclictest7433-21grep10:05:010
7627280,0sleep30-21swapper/311:03:243
232069987,1cyclictest34-21ksoftirqd/311:35:013
232069985,2cyclictest658-21snmpd10:29:523
232069984,3cyclictest275-21systemd-journal10:09:113
231969984,3cyclictest5669-21cat12:20:140
231969982,3cyclictest6409-21grep08:55:010
232069975,1cyclictest34-21ksoftirqd/311:20:013
232069973,3cyclictest658-21snmpd12:24:313
232069973,3cyclictest658-21snmpd10:53:343
232069973,3cyclictest658-21snmpd08:22:113
232069973,3cyclictest275-21systemd-journal11:39:113
232069973,3cyclictest275-21systemd-journal07:40:013
232069973,3cyclictest275-21systemd-journal07:19:253
232069972,4cyclictest658-21snmpd12:27:583
232029974,2cyclictest1-21systemd09:20:182
232029973,3cyclictest658-21snmpd10:07:122
232029973,3cyclictest275-21systemd-journal10:17:172
232029973,3cyclictest275-21systemd-journal10:17:162
232029973,3cyclictest275-21systemd-journal10:00:012
232029973,3cyclictest26930-21sshd11:54:202
232029973,2cyclictest491-21systemd-logind11:24:322
232029970,6cyclictest0-21swapper/209:31:422
231979974,2cyclictest275-21systemd-journal10:07:241
231979973,3cyclictest29577-21ssh11:16:081
231979973,2cyclictest275-21systemd-journal11:59:221
231979973,2cyclictest275-21systemd-journal09:28:511
231979972,3cyclictest13079-21munin-run09:10:011
231969973,3cyclictest658-21snmpd12:11:230
231969973,3cyclictest658-21snmpd08:17:460
231969973,3cyclictest658-21snmpd08:17:460
231969973,3cyclictest275-21systemd-journal10:15:110
231969973,3cyclictest275-21systemd-journal10:15:110
231969973,3cyclictest275-21systemd-journal09:00:010
231969973,3cyclictest22539-21/usr/sbin/munin09:35:000
231969972,3cyclictest14334-21idleruntime-cro08:00:010
231969971,3cyclictest23425-21grep09:35:120
7984260,0sleep00-21swapper/010:05:110
30503260,0sleep10-21swapper/109:20:111
232069964,1cyclictest34-21ksoftirqd/308:05:003
232069963,2cyclictest663-21runrttasks07:30:053
232069963,2cyclictest658-21snmpd10:13:333
232069963,2cyclictest555-21diskstats10:20:143
232069963,2cyclictest31392-21cpuspeed07:25:113
232069963,2cyclictest30050-21ssh09:20:043
232069963,2cyclictest26934-21sh09:17:533
232069963,2cyclictest25660-21run-parts10:15:183
232069963,2cyclictest25660-21run-parts10:15:183
232069963,2cyclictest24374-21ssh12:30:583
232069963,2cyclictest23092-21ssh11:51:213
232069963,2cyclictest17151-21ssh10:49:533
232069963,2cyclictest11096-21ntpq07:50:173
232069963,1cyclictest0-21swapper/312:07:213
232069963,1cyclictest0-21swapper/312:07:213
232069962,3cyclictest7949-21cat09:45:153
232069962,3cyclictest7730-11brltty10:33:363
232069962,3cyclictest658-21snmpd12:10:213
232069962,3cyclictest658-21snmpd10:01:353
232069962,3cyclictest658-21snmpd09:10:363
232069962,3cyclictest658-21snmpd08:51:563
232069962,3cyclictest658-21snmpd08:44:503
232069962,3cyclictest658-21snmpd08:10:523
232069962,3cyclictest658-21snmpd07:55:403
232069962,3cyclictest658-21snmpd07:45:113
232069962,3cyclictest658-21snmpd07:21:183
232069962,3cyclictest4420-21sed11:20:213
232069962,3cyclictest23474-21fschecks_time09:35:123
232069962,2cyclictest30763-21vmstat12:15:203
232069962,1cyclictest0-21swapper/311:48:123
232069962,1cyclictest0-21swapper/310:58:493
232069961,3cyclictest275-21systemd-journal09:03:563
232069960,5cyclictest15606-21cpuspeed_turbos09:50:133
232029965,1cyclictest28-21ksoftirqd/210:05:022
232029963,2cyclictest658-21snmpd09:16:252
232029963,2cyclictest30017-21sh11:16:292
232029963,2cyclictest28849-21ssh12:15:032
232029963,2cyclictest28-21ksoftirqd/208:30:212
232029963,2cyclictest2806-21taskset07:31:402
232029963,2cyclictest21391-21cpuspeed_turbos08:15:122
232029963,2cyclictest21391-21cpuspeed_turbos08:15:122
232029963,2cyclictest20462-21ssh10:51:052
232029963,2cyclictest19146-21rm10:30:392
232029963,2cyclictest17824-21ssh09:50:522
232029963,2cyclictest15212-21ssh11:27:152
232029963,2cyclictest11232-21ssh09:27:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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