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2026-07-24 - 21:15
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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 Jul 24, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8312299270,19sleep20-21swapper/207:09:452
5182291257,21sleep10-21swapper/107:06:211
6652261233,19sleep30-21swapper/307:07:573
7452260229,20sleep00-21swapper/007:08:530
69792580,0sleep20-21swapper/212:31:172
5732580,0sleep20-21swapper/209:15:162
242412580,0sleep30-21swapper/309:48:573
235412580,0sleep20-21swapper/210:45:262
277012570,0sleep327706-21unixbench_singl11:45:203
216812560,0sleep10-21swapper/112:01:241
134762550,1sleep3331rcuc/310:01:103
229172230,0sleep30-21swapper/310:25:483
75332190,0sleep00-21swapper/012:12:330
204492150,0sleep00-21swapper/010:44:270
962991412,1cyclictest28-21ksoftirqd/211:50:012
95899123,1cyclictest141rcu_preempt08:20:121
182772110,3sleep334-21ksoftirqd/312:00:033
96299109,1cyclictest28-21ksoftirqd/208:40:012
9629997,2cyclictest28-21ksoftirqd/210:00:012
9629997,2cyclictest28-21ksoftirqd/209:35:002
9629997,1cyclictest28-21ksoftirqd/212:29:592
9629997,1cyclictest28-21ksoftirqd/208:25:012
9629997,1cyclictest28-21ksoftirqd/207:40:022
9629997,1cyclictest28-21ksoftirqd/207:35:022
9589998,1cyclictest22-21ksoftirqd/109:40:001
20890290,0sleep30-21swapper/311:41:323
9679984,3cyclictest560-21gdbus12:00:013
9679980,2cyclictest32760-21sh10:13:043
9629987,1cyclictest28-21ksoftirqd/212:40:002
9629987,1cyclictest28-21ksoftirqd/207:15:012
9629986,1cyclictest28-21ksoftirqd/211:40:012
9629985,2cyclictest29717-21rm11:08:582
9629985,2cyclictest28-21ksoftirqd/209:55:012
9629983,3cyclictest275-21systemd-journal11:25:032
9629983,3cyclictest275-21systemd-journal08:14:222
9629981,5cyclictest141rcu_preempt10:08:452
9629981,1cyclictest141rcu_preempt07:50:132
9629980,8cyclictest27960-21ssh10:29:382
9589987,1cyclictest22-21ksoftirqd/109:50:011
9589986,2cyclictest22-21ksoftirqd/112:00:001
9589985,2cyclictest22-21ksoftirqd/110:10:011
9589983,3cyclictest275-21systemd-journal08:18:321
9589982,4cyclictest141rcu_preempt11:30:121
9589981,5cyclictest31345-21ssh09:52:551
9549986,1cyclictest0-21swapper/012:01:480
9549982,3cyclictest28367-21dump-pmu-power08:10:020
18300280,0sleep20-21swapper/208:55:212
9679973,3cyclictest9212-21awk11:35:113
9679973,3cyclictest658-21snmpd08:15:413
9679973,1cyclictest0-21swapper/311:34:483
9679973,1cyclictest0-21swapper/311:11:113
9679970,7cyclictest0-21swapper/311:23:473
9679970,3cyclictest9905-21cron08:40:013
9679970,1cyclictest0-21swapper/310:32:323
9629976,1cyclictest28-21ksoftirqd/210:20:002
9629976,1cyclictest28-21ksoftirqd/208:30:012
9629973,3cyclictest2411-21tune2fs11:50:152
9629973,3cyclictest0-21swapper/212:01:532
9629973,1cyclictest141rcu_preempt09:10:112
9629972,3cyclictest275-21systemd-journal11:16:132
9629972,3cyclictest141rcu_preempt09:46:272
9629972,1cyclictest28-21ksoftirqd/212:10:132
9629972,1cyclictest28-21ksoftirqd/210:30:122
9629972,1cyclictest141rcu_preempt09:00:112
9629972,1cyclictest0-21swapper/211:20:202
9629971,4cyclictest0-21swapper/210:10:592
9629971,1cyclictest141rcu_preempt11:00:012
9589976,1cyclictest22-21ksoftirqd/109:35:001
9589976,1cyclictest22-21ksoftirqd/109:25:001
9589976,1cyclictest22-21ksoftirqd/107:30:021
9589975,1cyclictest22-21ksoftirqd/107:35:021
9589975,1cyclictest22-21ksoftirqd/107:15:011
9589975,1cyclictest20067-21sh09:26:421
9589974,2cyclictest5440-21sshd10:54:541
9589974,2cyclictest504-21dbus-daemon11:16:131
9589973,3cyclictest8123-11brltty08:02:151
9589973,3cyclictest504-21dbus-daemon07:45:011
9589973,1cyclictest141rcu_preempt11:35:151
9589972,3cyclictest141rcu_preempt10:35:011
9589971,4cyclictest23298-21diskmemload11:20:151
9589971,4cyclictest141rcu_preempt12:29:081
9589971,1cyclictest141rcu_preempt10:35:121
9549973,3cyclictest8527-21hddtemp_smartct11:15:160
9549973,3cyclictest275-21systemd-journal11:10:220
9549973,1cyclictest0-21swapper/012:29:510
9549973,1cyclictest0-21swapper/010:48:190
9549972,3cyclictest23904-21turbostat08:00:020
9549971,4cyclictest4480-21awk10:35:010
29080270,0sleep00-21swapper/008:10:160
28145270,0sleep00-21swapper/009:50:310
9679964,1cyclictest40932sleep312:10:203
9679964,1cyclictest4055-21gltestperf10:15:153
9679964,1cyclictest17811-21ntp_states08:55:183
9679963,2cyclictest5937-21ssh09:56:493
9679963,2cyclictest504-21dbus-daemon11:20:003
9679963,2cyclictest29544-21ssh12:06:023
9679963,2cyclictest29316-21ssh10:49:483
9679963,2cyclictest275-21systemd-journal09:11:273
9679963,2cyclictest275-21systemd-journal08:06:503
9679963,2cyclictest275-21systemd-journal07:33:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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