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2026-06-01 - 11:42
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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 Mon Jun 01, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
185762284248,22sleep30-21swapper/319:06:573
185792279248,21sleep10-21swapper/119:06:591
186102272245,17sleep20-21swapper/219:07:242
187142259228,20sleep00-21swapper/019:08:430
308242690,0sleep00-21swapper/023:19:400
83652610,0sleep20-21swapper/200:03:592
246322600,0sleep30-21swapper/321:38:283
15392600,0sleep00-21swapper/021:24:560
20482570,0sleep20-21swapper/200:19:452
13682570,0sleep30-21swapper/300:37:193
246052560,0sleep228-21ksoftirqd/222:55:202
133232550,0sleep20-21swapper/223:28:192
56482530,0sleep30-21swapper/323:42:543
146342230,0sleep00-21swapper/023:48:230
87982180,0sleep20-21swapper/221:29:062
265502160,0sleep10-21swapper/100:33:171
209572160,0sleep30-21swapper/323:13:273
106332150,0sleep10-21swapper/100:05:141
35902140,0sleep30-21swapper/319:45:133
325302140,0sleep30-21swapper/300:18:213
137872140,0sleep30-21swapper/323:09:183
8352110,0sleep30-21swapper/322:41:123
322702110,0sleep10-21swapper/123:59:051
113562100,3sleep228-21ksoftirqd/221:10:242
189279997,2cyclictest12-21ksoftirqd/023:35:000
189399984,3cyclictest275-21systemd-journal21:52:353
189399983,3cyclictest275-21systemd-journal00:20:583
189399980,1cyclictest275-21systemd-journal00:30:023
189359985,2cyclictest19935-21ssh00:30:002
189359985,2cyclictest19935-21ssh00:30:002
189359982,4cyclictest25748-21idleruntime-cro21:20:002
189359980,7cyclictest3609-21sh22:43:192
189309982,3cyclictest3287-21awk19:45:001
189279987,1cyclictest12-21ksoftirqd/000:00:000
189279986,2cyclictest12-21ksoftirqd/019:15:000
13439280,0sleep10-21swapper/122:10:181
189399975,2cyclictest34-21ksoftirqd/319:40:003
189399973,3cyclictest560-21gdbus21:10:003
189399973,3cyclictest504-21dbus-daemon20:16:203
189399973,3cyclictest15157-21smart_sda22:30:203
189399973,1cyclictest34-21ksoftirqd/322:05:163
189359973,3cyclictest658-21snmpd23:22:522
189359973,3cyclictest658-21snmpd19:49:112
189359973,3cyclictest27701-11brltty23:08:252
189359973,3cyclictest15905-21ntp_states20:10:192
189359973,2cyclictest275-21systemd-journal22:37:092
189359973,2cyclictest275-21systemd-journal22:37:092
189359973,1cyclictest0-21swapper/223:30:362
189359972,2cyclictest3488-21idleruntime-cro22:05:012
189359971,4cyclictest19145-21idleruntime-cro20:20:012
189359970,1cyclictest8254-21sh00:22:552
189309973,3cyclictest504-21dbus-daemon21:00:181
189309973,3cyclictest275-21systemd-journal19:15:001
189309973,3cyclictest275-21systemd-journal00:37:381
189309972,3cyclictest275-21systemd-journal22:05:491
189309971,5cyclictest21209-21kworker/1:119:15:201
189279974,2cyclictest5823-21cron22:45:020
189279973,3cyclictest560-21gdbus23:00:010
189279973,3cyclictest4340-11brltty21:11:260
189279973,3cyclictest275-21systemd-journal20:06:440
189279973,1cyclictest0-21swapper/021:38:420
189279972,4cyclictest19681-21unixbench_singl21:15:230
189279972,3cyclictest21636-21dump-pmu-power22:35:010
189279971,4cyclictest19329-21dump-pmu-power21:55:010
189279970,6cyclictest2352-21ls20:55:010
18443270,0sleep20-21swapper/222:32:342
7687260,0sleep30-21swapper/323:25:123
189399966,0cyclictest0-21swapper/323:31:053
189399965,1cyclictest501-21in:imuxsock19:15:003
189399963,2cyclictest658-21snmpd21:42:263
189399963,2cyclictest658-21snmpd20:56:493
189399963,2cyclictest658-21snmpd20:47:333
189399963,2cyclictest658-21snmpd20:21:033
189399963,2cyclictest3987-21ssh22:24:293
189399963,2cyclictest3424-21users00:00:263
189399963,2cyclictest31760-21apt23:20:113
189399963,2cyclictest28433-21ssh22:58:203
189399963,2cyclictest27507-21ssh23:36:133
189399963,2cyclictest26793-21rm23:16:343
189399963,2cyclictest23974-21ssh21:57:123
189399963,2cyclictest21527-21acpi19:15:013
189399963,2cyclictest11704-21cron22:10:023
189399963,2cyclictest10289-21ssh22:47:053
189399962,3cyclictest658-21snmpd23:01:023
189399962,3cyclictest658-21snmpd22:25:013
189399962,3cyclictest658-21snmpd22:15:493
189399962,3cyclictest658-21snmpd22:01:043
189399962,3cyclictest658-21snmpd20:53:163
189399962,3cyclictest658-21snmpd00:10:133
189399962,3cyclictest6377-21basename19:50:163
189399962,3cyclictest5194-21expr21:00:123
189399962,3cyclictest11935-21expr00:25:133
189399962,3cyclictest11935-21expr00:25:133
189399962,3cyclictest10618-21grep21:30:123
189399962,2cyclictest275-21systemd-journal21:10:003
189399962,1cyclictest0-21swapper/322:35:173
189399962,1cyclictest0-21swapper/322:35:173
189399962,1cyclictest0-21swapper/321:27:053
189399962,1cyclictest0-21swapper/321:16:023
189399962,0cyclictest8881-21apt-get23:45:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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