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2025-12-20 - 13:41
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Sat Dec 20, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23759992258188,55sleep00-21swapper/019:07:170
23747722247183,49sleep10-21swapper/119:05:321
179699690,4rtkit-daemon1795-21rtkit-daemon23:55:161
179699680,4rtkit-daemon1795-21rtkit-daemon22:03:060
23832262620,20sleep126-21ksoftirqd/119:25:001
237633699593,7cyclictest2500628-21apt-get00:20:150
24951022570,4sleep12495100-21unixbench_multi00:05:251
179699560,4rtkit-daemon1795-21rtkit-daemon20:09:540
24268452550,7sleep00-21swapper/021:15:160
237633699552,5cyclictest2496302-21apt-get00:10:130
179699550,4rtkit-daemon1795-21rtkit-daemon21:23:050
237633699542,5cyclictest2418842-21apt-get20:55:140
179699540,3rtkit-daemon1795-21rtkit-daemon19:19:550
237633699531,6cyclictest2498656-21apt-get00:15:130
2376336995311,4cyclictest2469877-21seq23:00:500
237633699521,6cyclictest2456829-21apt-get22:30:120
237633699514,4cyclictest2434448-21apt-get21:35:140
237633699512,6cyclictest2488023-21apt-get23:50:120
237633699512,5cyclictest2486079-21apt-get23:45:140
237633699512,5cyclictest2387239-21apt-get19:35:140
179699510,3rtkit-daemon0-21swapper/021:29:110
237633699500,5cyclictest2460740-21apt-get22:40:110
179699500,4rtkit-daemon1795-21rtkit-daemon23:03:521
179699500,4rtkit-daemon1795-21rtkit-daemon22:20:590
237633699492,5cyclictest2448097-21apt-get22:10:150
237633699491,8cyclictest2480225-21apt-get23:30:120
237633699491,4cyclictest2491959-21apt-get00:00:150
237633699491,10cyclictest2478278-21apt-get23:25:130
179699490,4rtkit-daemon1795-21rtkit-daemon19:50:431
179699490,4rtkit-daemon1795-21rtkit-daemon19:21:550
179699490,3rtkit-daemon1795-21rtkit-daemon22:15:170
179699490,3rtkit-daemon1795-21rtkit-daemon21:02:101
237633699481,9cyclictest2465391-21ntp_states22:50:200
237633699481,10cyclictest2383556-21diskstats19:25:160
237633699480,5cyclictest2391146-21apt-get19:45:120
179699480,4rtkit-daemon1795-21rtkit-daemon20:36:360
179699480,3rtkit-daemon1795-21rtkit-daemon20:30:300
237633699472,4cyclictest2502570-21apt-get00:25:140
237633699471,9cyclictest2484451-21perl23:40:180
237633699471,9cyclictest2442753-21irqstats21:55:180
237633699471,9cyclictest2395348-21perl19:55:180
237633699471,9cyclictest2395348-21perl19:55:180
237633699471,7cyclictest2440302-21apt-get21:50:140
237633699471,5cyclictest2493903-21apt-get00:05:130
179699470,3rtkit-daemon1795-21rtkit-daemon00:12:571
179699470,3rtkit-daemon0-21swapper/020:19:570
237633699466,5cyclictest2406358-21sshd20:23:110
237633699464,9cyclictest2474370-21apt-get23:15:140
237633699462,5cyclictest2446147-21apt-get22:05:130
237633699461,10cyclictest2458774-21apt-get22:35:130
237633699452,7cyclictest2476336-21apt-get23:20:130
237633699451,7cyclictest2400886-21apt-get20:10:130
179699440,3rtkit-daemon0-21swapper/022:26:550
179699440,1rtkit-daemon1795-21rtkit-daemon22:24:071
237633699432,8cyclictest2422749-21apt-get21:05:140
179699430,3rtkit-daemon0-21swapper/119:52:360
179699430,11rtkit-daemon1795-21rtkit-daemon20:04:051
237633699422,6cyclictest2470478-21apt-get23:05:120
179699420,1rtkit-daemon1795-21rtkit-daemon20:18:041
179699410,4rtkit-daemon1795-21rtkit-daemon21:10:210
179699410,4rtkit-daemon1795-21rtkit-daemon20:26:490
179699410,4rtkit-daemon1795-21rtkit-daemon19:41:550
237633699403,7cyclictest2506456-21apt-get00:35:120
237633699402,14cyclictest2438357-21apt-get21:45:140
179699400,3rtkit-daemon1795-21rtkit-daemon19:33:010
179699400,3rtkit-daemon0-21swapper/019:11:310
237633699392,6cyclictest2462679-21apt-get22:45:120
179699390,4rtkit-daemon1795-21rtkit-daemon21:44:010
179699390,4rtkit-daemon1795-21rtkit-daemon21:32:510
179699390,3rtkit-daemon0-21swapper/123:10:090
237633699383,26cyclictest2416894-21apt-get20:50:130
237633699382,6cyclictest2466569-21apt-get22:55:140
237633699382,5cyclictest2420809-21apt-get21:00:140
237633699372,5cyclictest2504517-21apt-get00:30:160
2376336993711,6cyclictest1-21systemd23:59:590
179699370,3rtkit-daemon0-21swapper/120:48:530
237633699367,7cyclictest2483303-21cat23:35:230
237634099353,11cyclictest2414953-21apt-get20:45:131
179699350,3rtkit-daemon0-21swapper/122:55:021
179699340,4rtkit-daemon161rcuc/020:03:390
237633699330,9cyclictest2413775-21ntp_states20:40:190
179699330,3rtkit-daemon1795-21rtkit-daemon23:26:401
179699330,3rtkit-daemon0-21swapper/100:35:011
179699310,4rtkit-daemon1795-21rtkit-daemon21:26:511
179699310,4rtkit-daemon1795-21rtkit-daemon00:02:331
237634099302,8cyclictest2409102-21apt-get20:30:151
179699300,4rtkit-daemon1795-21rtkit-daemon22:14:211
179699280,19rtkit-daemon1795-21rtkit-daemon22:28:161
237634099270,6cyclictest0-21swapper/120:25:401
2376340992623,2cyclictest18150irq/39-mmc000:15:271
237634099260,6cyclictest0-21swapper/119:36:201
237634099260,6cyclictest0-21swapper/119:13:171
2376340992518,5cyclictest2463939-21sed22:45:251
2376340992510,9cyclictest2413003-21apt-get20:40:111
237634099250,6cyclictest0-21swapper/122:52:341
237634099250,6cyclictest0-21swapper/121:36:191
237634099250,6cyclictest0-21swapper/120:06:161
179699250,21rtkit-daemon893-21snmpd20:13:391
179699250,1rtkit-daemon1795-21rtkit-daemon23:54:321
179699250,1rtkit-daemon1795-21rtkit-daemon00:24:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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