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2026-04-01 - 19:34
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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 Wed Apr 01, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269952290264,17sleep20-21swapper/207:07:512
269202278218,17sleep00-21swapper/007:06:540
270362274244,20sleep10-21swapper/107:08:071
270262260227,22sleep30-21swapper/307:08:013
193252610,0sleep00-21swapper/009:48:070
305882600,0sleep30-21swapper/310:32:143
13982600,0sleep30-21swapper/311:50:023
188992560,0sleep20-21swapper/210:44:512
202842550,0sleep10-21swapper/112:00:171
18742540,0sleep10-21swapper/109:56:171
163332530,0sleep20-21swapper/212:17:082
283452240,0sleep30-21swapper/309:34:483
84732200,0sleep30-21swapper/310:19:493
172092190,0sleep20-21swapper/211:59:142
34262180,0sleep20-21swapper/211:31:482
183622180,0sleep00-21swapper/012:18:380
120452180,0sleep30-21swapper/310:02:273
84222170,0sleep00-21swapper/011:15:240
319262160,0sleep30-21swapper/312:25:503
92852150,0sleep10-21swapper/110:39:051
69462150,0sleep30-21swapper/312:30:183
44122150,0sleep10-21swapper/112:10:141
307932150,0sleep10-21swapper/110:50:581
307342150,0sleep30-21swapper/309:35:193
263702150,0sleep10-21swapper/111:26:061
156262140,0sleep20-21swapper/209:05:122
154762140,0sleep10-21swapper/111:20:131
168482110,0sleep116850-21date09:05:181
2728799107,2cyclictest34-21ksoftirqd/310:20:153
2728099106,4cyclictest22-21ksoftirqd/111:10:001
2728099101,1cyclictest141rcu_preempt09:00:121
239872100,3sleep122-21ksoftirqd/108:10:171
239872100,3sleep122-21ksoftirqd/108:10:171
30942290,1sleep230947-21fschecks_time11:10:122
272879992,5cyclictest141rcu_preempt09:53:183
272879990,8cyclictest19181-21ssh11:40:463
3308280,0sleep00-21swapper/009:57:190
272879988,0cyclictest341ksoftirqd/307:40:013
272879987,1cyclictest34-21ksoftirqd/312:40:003
272879987,1cyclictest34-21ksoftirqd/312:20:003
272879987,1cyclictest34-21ksoftirqd/310:55:003
272879987,1cyclictest34-21ksoftirqd/309:45:003
272879987,1cyclictest34-21ksoftirqd/307:50:013
272879987,1cyclictest34-21ksoftirqd/307:15:013
272879986,2cyclictest34-21ksoftirqd/309:00:003
272879986,1cyclictest34-21ksoftirqd/308:45:003
272879986,1cyclictest34-21ksoftirqd/307:20:013
272879985,2cyclictest34-21ksoftirqd/309:20:123
272879985,2cyclictest34-21ksoftirqd/308:35:013
272809985,2cyclictest26369-21apt-get10:30:111
25341280,0sleep10-21swapper/109:14:181
22492280,0sleep20-21swapper/212:01:392
9548270,0sleep30-21swapper/310:57:373
272879976,1cyclictest34-21ksoftirqd/311:20:013
272879976,1cyclictest34-21ksoftirqd/307:35:013
272879973,3cyclictest887-21sed11:30:193
272879973,3cyclictest275-21systemd-journal11:59:173
272879973,2cyclictest275-21systemd-journal09:58:233
272879972,4cyclictest141rcu_preempt10:05:133
272879971,5cyclictest0-21swapper/312:00:113
272849976,1cyclictest0-21swapper/209:11:482
272849973,3cyclictest658-21snmpd12:38:402
272849973,3cyclictest658-21snmpd11:45:022
272849973,3cyclictest504-21dbus-daemon10:50:002
272849973,3cyclictest275-21systemd-journal11:24:012
272849973,3cyclictest275-21systemd-journal10:18:082
272849973,3cyclictest20749-21packagekitd12:20:012
272849973,2cyclictest275-21systemd-journal10:30:022
272849972,3cyclictest30522-21perf09:55:012
272849972,3cyclictest275-21systemd-journal08:00:152
272849971,1cyclictest0-21swapper/210:55:032
272809976,1cyclictest22-21ksoftirqd/107:55:011
272809976,1cyclictest17548-21diskmemload11:47:541
272809974,2cyclictest13657-21cron12:35:001
272809973,3cyclictest504-21dbus-daemon07:35:001
272809973,3cyclictest29518-11brltty11:15:161
272809972,3cyclictest275-21systemd-journal11:10:101
272759974,2cyclictest28654-21ssh12:24:450
272759974,2cyclictest12767-21cron08:59:590
272759973,3cyclictest275-21systemd-journal09:05:000
272759971,3cyclictest29629-21munin-run08:25:010
272759970,4cyclictest2150-21turbostat07:25:010
2607270,0sleep20-21swapper/210:35:142
272879966,0cyclictest0-21swapper/311:21:243
272879966,0cyclictest0-21swapper/310:45:043
272879963,2cyclictest8913-21ls08:50:123
272879963,2cyclictest6716-21ssh12:11:173
272879963,2cyclictest504-21dbus-daemon08:30:013
272879963,2cyclictest34-21ksoftirqd/309:10:003
272879963,2cyclictest30300-21ssh11:10:073
272879963,2cyclictest30258-21ssh12:06:023
272879963,2cyclictest25888-21df11:45:153
272879963,2cyclictest2137-21latency_hist07:25:013
272879963,2cyclictest16963-21ssh11:01:443
272879963,2cyclictest13992-21rm09:25:333
272879962,3cyclictest658-21snmpd11:06:353
272879962,3cyclictest658-21snmpd10:42:433
272879962,3cyclictest658-21snmpd10:35:133
272879962,3cyclictest658-21snmpd10:13:033
272879962,3cyclictest658-21snmpd09:45:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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