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2026-01-01 - 02:21
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Wed Dec 31, 2025 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234629912646,59cyclictest23454-21cyclictest12:02:580
234629912646,59cyclictest23454-21cyclictest12:02:580
234629911939,50cyclictest20138-21ssh09:44:490
2198421186,17sleep10-21swapper/107:04:301
2198421186,17sleep10-21swapper/107:04:301
234629911443,64cyclictest0-21swapper/010:54:420
234629911426,51cyclictest0-21swapper/009:34:470
234629911426,51cyclictest0-21swapper/009:34:470
23462991123,66cyclictest17198-21apt-get10:34:450
23462991123,66cyclictest17198-21apt-get10:34:450
23467991107,73cyclictest17747-21apt-get10:34:481
23467991107,73cyclictest17747-21apt-get10:34:481
23471991073,63cyclictest346-21runrttasks10:49:472
23462991063,61cyclictest28918-21ls12:39:260
23462991053,93cyclictest0-21swapper/007:44:320
23462991053,92cyclictest0-21swapper/012:14:350
3194921040,8sleep20-21swapper/210:57:442
23462991032,63cyclictest4357-21ssh10:12:250
23462991022,63cyclictest1353-21seq10:07:290
23462991014,90cyclictest0-21swapper/012:04:380
23462991013,57cyclictest26713-21seq11:41:390
23462991013,57cyclictest26713-21seq11:41:390
23462991012,60cyclictest11649-21ssh11:17:010
23462999944,49cyclictest26221-21latency08:54:510
2346299993,59cyclictest21841-21seq12:27:090
2346299993,59cyclictest21841-21seq12:27:090
23471999869,18cyclictest0-21swapper/208:49:262
2347199984,57cyclictest346-21runrttasks07:27:152
2346799983,68cyclictest32565-21apt-get10:59:371
2346299983,83cyclictest15890-21apt-get08:24:400
2346299982,58cyclictest31948-21ssh09:10:180
2346299973,84cyclictest24196-21apt-get08:49:370
2346299973,64cyclictest346-21runrttasks08:43:270
2346299972,80cyclictest0-21swapper/012:10:010
2346299972,59cyclictest10558-21ssh09:29:410
2346299972,57cyclictest7234-21seq07:55:540
23471999622,40cyclictest22773-21sh10:42:282
23462999680,9cyclictest17359-21apt-config10:34:260
2346299963,63cyclictest25424-21idleruntime-cro09:54:230
2346299963,63cyclictest25424-21idleruntime-cro09:54:230
2346299963,54cyclictest346-21runrttasks11:00:500
2346299962,56cyclictest25926-21df09:54:430
2347199953,79cyclictest0-21swapper/208:24:402
23471999528,30cyclictest0-21swapper/212:29:582
2346299955,85cyclictest0-21swapper/007:09:270
2346299955,85cyclictest0-21swapper/007:09:270
2346299953,82cyclictest4566-21apt-get07:49:390
23462999537,52cyclictest0-21swapper/010:44:580
23462999537,52cyclictest0-21swapper/010:44:580
2346299953,53cyclictest363-21snmpd11:19:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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