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2026-08-10 - 12:05
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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 Aug 10, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61832279250,17sleep20-21swapper/219:09:582
60412274245,19sleep00-21swapper/019:08:110
60082270245,16sleep10-21swapper/119:07:471
59652257224,22sleep30-21swapper/319:07:173
92762590,0sleep20-21swapper/222:33:502
285082590,0sleep20-21swapper/200:01:592
226702590,0sleep30-21swapper/300:37:183
141192570,0sleep30-21swapper/320:35:183
266552560,0sleep00-21swapper/000:20:150
248422550,0sleep10-21swapper/100:19:441
208202540,0sleep30-21swapper/323:19:233
138332540,0sleep30-21swapper/323:34:363
112802530,0sleep20-21swapper/223:32:402
198232210,0sleep30-21swapper/322:59:293
287582180,0sleep00-21swapper/023:43:150
270102180,0sleep20-21swapper/221:27:302
37372170,0sleep10-21swapper/100:06:251
300052170,0sleep30-21swapper/323:25:003
32072150,0sleep00-21swapper/022:49:360
204032150,0sleep30-21swapper/323:57:273
204032150,0sleep30-21swapper/323:57:273
628799124,4cyclictest26260-21sh22:24:570
628799123,6cyclictest29184-21taskset19:57:060
628799123,6cyclictest27258-21ssh23:03:450
628799118,2cyclictest16710-21ssh22:00:150
628799118,2cyclictest16710-21ssh22:00:150
628799117,3cyclictest0-21swapper/000:00:020
628799114,2cyclictest21103-21ssh00:16:530
628799113,6cyclictest2955-21ssh21:51:260
628799113,6cyclictest22773-21sh21:44:400
628799113,6cyclictest12358-21sh23:33:290
628799113,5cyclictest31011-21ssh22:08:260
628799113,5cyclictest19480-21ssh23:56:440
628799113,5cyclictest19480-21ssh23:56:430
628799113,4cyclictest467-21cut20:05:190
628799113,4cyclictest3818-21sh23:47:340
628799113,4cyclictest12266-21sh21:19:210
628799113,4cyclictest1085-21chrt22:10:090
628799113,4cyclictest10801-21ssh21:55:590
628799113,3cyclictest9811-21ssh23:50:460
628799113,3cyclictest29792-21sh22:26:140
628799112,3cyclictest13789-21apt-get23:15:120
628799103,5cyclictest8863-21ssh00:29:310
628799103,5cyclictest8533-21ssh23:11:250
628799103,5cyclictest29028-21ssh21:10:130
628799103,5cyclictest1852-21ssh21:31:360
628799103,5cyclictest16839-21ssh22:38:110
628799103,3cyclictest7738-21ssh22:32:400
628799103,3cyclictest5671-21ssh23:29:470
628799103,3cyclictest3714-21ssh00:06:250
628799103,3cyclictest31604-21sh23:05:420
628799103,3cyclictest21181-21ssh23:38:510
628799103,3cyclictest11182-21sh00:10:440
628799103,3cyclictest10308-21ssh21:36:380
628799103,2cyclictest8987-21expr20:25:140
628799103,2cyclictest28488-21diskmemload22:42:260
628799103,2cyclictest28488-21diskmemload00:34:400
628799102,2cyclictest5369-21ssh22:50:180
62879996,3cyclictest0-21swapper/020:20:120
62879996,2cyclictest24975-21cron19:50:010
62879996,2cyclictest12644-21ssh22:55:130
62879995,3cyclictest8637-21latency_hist19:15:010
62879995,3cyclictest275-21systemd-journal19:35:010
62879995,3cyclictest23942-21expr21:45:150
62879995,3cyclictest23662-21systemctl21:25:180
62879995,3cyclictest19916-21sed19:35:230
62879995,3cyclictest14223-21sort19:25:130
62879995,3cyclictest12330-21expr19:20:160
62879995,3cyclictest11870-21sh22:15:460
62879994,4cyclictest20004-21sed00:35:220
62879993,2cyclictest21950-21sh23:20:050
62879993,2cyclictest15771-21cstates20:40:140
62879993,2cyclictest15705-21ssh21:20:210
62879991,3cyclictest11490-21wc19:20:010
62879990,6cyclictest3318-21runrttasks20:10:430
62879990,6cyclictest23702-21taskset20:56:040
4401290,0sleep10-21swapper/121:15:001
62989983,4cyclictest0-21swapper/321:45:143
62959981,4cyclictest31677-21apt20:05:012
62929987,1cyclictest22-21ksoftirqd/100:30:001
62929986,1cyclictest22-21ksoftirqd/120:05:011
62929980,0cyclictest28927-21turbostat23:05:001
62879986,1cyclictest20808-21apt-get19:40:130
62879985,2cyclictest4651-21sed20:15:140
62879985,2cyclictest29820-21grep20:00:220
62879984,3cyclictest26675-21grep21:05:110
62879984,3cyclictest25660-21fschecks_count19:50:150
62879984,3cyclictest25297-21sed21:00:180
62879984,3cyclictest20006-21expr20:50:110
62879984,3cyclictest18146-21grep20:45:140
62879984,3cyclictest13269-21cpuspeed_turbos20:35:130
62879984,3cyclictest11632-21taskset20:30:150
62989974,2cyclictest275-21systemd-journal00:09:563
62989973,3cyclictest560-21gdbus21:55:013
62989973,1cyclictest0-21swapper/323:00:263
62989973,1cyclictest0-21swapper/322:45:083
62989972,3cyclictest275-21systemd-journal22:23:063
62959973,3cyclictest504-21dbus-daemon23:20:002
62959973,3cyclictest504-21dbus-daemon00:39:142
62959971,3cyclictest26224-21rm23:41:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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