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2026-04-14 - 04:04
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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 rack5slot2.osadl.org (updated Tue Apr 14, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136892197181,11sleep10-21swapper/119:10:011
133532189172,12sleep30-21swapper/319:05:443
133892181163,13sleep00-21swapper/019:06:090
13631211698,13sleep20-21swapper/219:09:162
205912530,0sleep10-21swapper/123:53:071
316862430,0sleep30-21swapper/322:07:373
35372160,0sleep30-21swapper/322:57:013
36652110,0sleep00-21swapper/000:32:370
270732110,0sleep10-21swapper/121:50:001
167762110,0sleep10-21swapper/122:31:401
151102100,0sleep20-21swapper/200:22:102
10440290,0sleep10-21swapper/123:00:181
23274280,0sleep00-21swapper/023:54:470
138739970,6cyclictest0-21swapper/219:30:132
138799955,0cyclictest9290-21kworker/3:123:26:583
138799955,0cyclictest9290-21kworker/3:121:12:383
138799950,5cyclictest0-21swapper/300:15:413
138739953,1cyclictest541-21ssh22:40:112
138739950,5cyclictest0-21swapper/223:43:222
138739950,5cyclictest0-21swapper/222:56:052
138739950,5cyclictest0-21swapper/221:26:272
138739950,5cyclictest0-21swapper/200:26:452
138739950,4cyclictest0-21swapper/221:10:122
138699954,1cyclictest0-21swapper/119:45:181
138699951,2cyclictest0-21swapper/122:35:141
138699951,2cyclictest0-21swapper/121:20:121
138699950,5cyclictest0-21swapper/123:21:491
138699950,5cyclictest0-21swapper/100:01:581
138699950,0cyclictest0-21swapper/120:35:121
138689955,0cyclictest0-21swapper/022:35:170
138689954,1cyclictest8442-21munin-plugin-st23:00:020
138689951,3cyclictest802-21snmpd21:42:380
138689951,2cyclictest0-21swapper/021:50:110
138689950,4cyclictest0-21swapper/019:55:110
138689950,1cyclictest30665-21munin-run22:55:010
138689950,0cyclictest0-21swapper/022:08:390
7299240,0sleep20-21swapper/200:18:392
22292240,0sleep10-21swapper/121:15:221
138799944,0cyclictest9290-21kworker/3:121:23:483
138799944,0cyclictest0-21swapper/323:12:233
138799944,0cyclictest0-21swapper/323:03:323
138799944,0cyclictest0-21swapper/322:43:353
138799944,0cyclictest0-21swapper/322:33:163
138799944,0cyclictest0-21swapper/322:22:113
138799944,0cyclictest0-21swapper/321:33:353
138799943,1cyclictest2308-21/usr/sbin/munin22:25:173
138799943,1cyclictest17397-21tr20:20:133
138799941,3cyclictest57150irq/125-eth021:28:093
138799941,2cyclictest0-21swapper/321:40:133
138799941,1cyclictest0-21swapper/320:55:113
138799940,4cyclictest22978-21ssh22:03:333
138799940,4cyclictest0-21swapper/323:45:143
138799940,4cyclictest0-21swapper/323:35:113
138799940,4cyclictest0-21swapper/323:30:493
138799940,4cyclictest0-21swapper/322:11:303
138799940,4cyclictest0-21swapper/321:55:113
138799940,4cyclictest0-21swapper/321:50:113
138799940,4cyclictest0-21swapper/320:40:123
138799940,4cyclictest0-21swapper/319:40:013
138799940,4cyclictest0-21swapper/319:25:193
138799940,4cyclictest0-21swapper/300:25:123
138799940,4cyclictest0-21swapper/300:10:243
138799940,4cyclictest0-21swapper/300:04:533
138799940,3cyclictest7710-21cut21:05:143
138799940,3cyclictest3352-21sh00:32:263
138799940,3cyclictest29495-21cstates21:35:133
138799940,3cyclictest22531-21ssh22:35:023
138799940,3cyclictest22037-21if_eth422:50:153
138799940,3cyclictest20888-21/usr/sbin/munin21:15:153
138799940,3cyclictest17690-21ssh23:20:113
138799940,3cyclictest13437-21ssh22:45:413
138799940,3cyclictest0-21swapper/322:19:103
138799940,2cyclictest0-21swapper/321:46:093
138799940,1cyclictest29552-21/usr/sbin/munin20:45:163
138799940,1cyclictest25972-21/usr/sbin/munin23:40:183
138799940,1cyclictest2318-21/usr/sbin/munin19:50:143
138799940,1cyclictest2318-21/usr/sbin/munin19:50:133
138799940,1cyclictest12115-21cut00:05:123
138739944,0cyclictest0-21swapper/222:12:012
138739944,0cyclictest0-21swapper/221:37:312
138739944,0cyclictest0-21swapper/200:35:012
138739943,1cyclictest3419-21head00:00:192
138739940,4cyclictest31453-21sh00:30:172
138739940,4cyclictest29274-21ssh22:22:072
138739940,4cyclictest19743-21sh21:30:162
138739940,4cyclictest19659-21apt-get20:25:112
138739940,4cyclictest17105-21sed19:15:012
138739940,4cyclictest0-21swapper/223:57:292
138739940,4cyclictest0-21swapper/223:50:062
138739940,4cyclictest0-21swapper/223:35:122
138739940,4cyclictest0-21swapper/223:25:112
138739940,4cyclictest0-21swapper/223:20:292
138739940,4cyclictest0-21swapper/223:10:112
138739940,4cyclictest0-21swapper/223:01:512
138739940,4cyclictest0-21swapper/222:45:122
138739940,4cyclictest0-21swapper/222:30:122
138739940,4cyclictest0-21swapper/222:01:482
138739940,4cyclictest0-21swapper/221:41:542
138739940,4cyclictest0-21swapper/221:20:042
138739940,4cyclictest0-21swapper/221:15:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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