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2026-06-14 - 23:44
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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 rackbslot7.osadl.org (updated Sun Jun 14, 2026 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
702991374,89cyclictest0-21swapper/009:04:190
3267021337,17sleep00-21swapper/006:54:560
702991122,72cyclictest23271-21latency_hist09:24:090
7029911029,60cyclictest0-21swapper/010:49:240
7029910821,68cyclictest0-21swapper/012:14:200
7029910721,58cyclictest8063-21diskmemload12:24:290
702991053,67cyclictest8063-21diskmemload11:09:190
702991033,67cyclictest21043-21seq12:01:030
702991033,67cyclictest21043-21seq12:01:030
702991033,59cyclictest4248-21/usr/sbin/munin08:44:390
702991032,78cyclictest24131-21apt-get10:19:400
717991024,32cyclictest8977-21ssh09:54:252
717991024,32cyclictest8977-21ssh09:54:252
702991023,59cyclictest16323-21ssh10:59:350
702991022,64cyclictest4329-21runrttasks09:45:350
702991018,55cyclictest0-21swapper/009:38:290
7029910151,44cyclictest8904-21rm10:47:500
702991012,87cyclictest0-21swapper/011:29:160
7029910121,49cyclictest0-21swapper/011:19:320
702991003,63cyclictest4794-21seq07:09:200
702991003,63cyclictest4794-21seq07:09:200
702991002,67cyclictest27323-21ssh10:24:240
7029910019,54cyclictest24824-21sh12:08:160
3181921009,62sleep131827-21/usr/sbin/munin06:54:281
70299998,85cyclictest4494-21apt-get11:34:200
70299998,85cyclictest4494-21apt-get11:34:200
70299992,60cyclictest0-21swapper/012:21:450
70299988,50cyclictest0-21swapper/007:14:250
70299988,50cyclictest0-21swapper/007:14:250
70299983,60cyclictest14788-21/usr/sbin/munin09:09:290
70299982,89cyclictest7512-21ssh11:39:200
70299982,80cyclictest17936-21apt-get10:09:160
70299982,63cyclictest9612-21seq07:24:180
70299973,52cyclictest0-21swapper/009:54:090
70299972,64cyclictest27825-21seq08:19:110
70299972,64cyclictest27825-21seq08:19:110
70299972,62cyclictest16532-21seq10:06:090
70299972,62cyclictest16532-21seq10:06:090
717999639,47cyclictest0-21swapper/209:34:082
70299964,61cyclictest23746-21latency_hist10:19:080
70299963,73cyclictest0-21swapper/011:45:380
70299963,73cyclictest0-21swapper/011:45:380
70299963,60cyclictest1455-21ssh09:40:560
70299963,54cyclictest0-21swapper/010:39:370
702999630,59cyclictest0-21swapper/011:05:270
702999630,59cyclictest0-21swapper/011:05:270
70299962,62cyclictest11072-21idleruntime-cro09:04:050
70299953,60cyclictest0-21swapper/008:09:180
70299953,60cyclictest0-21swapper/008:09:180
70299952,63cyclictest13566-21ssh10:01:140
71799942,43cyclictest3951-21apt-get11:34:202
71799942,43cyclictest3951-21apt-get11:34:202
702999438,49cyclictest0-21swapper/007:59:050
70299943,60cyclictest670-21/usr/sbin/munin10:34:380
70299943,56cyclictest24916-21ssh11:14:260
70299942,58cyclictest0-21swapper/010:54:200
70299942,58cyclictest0-21swapper/010:54:200
717999340,47cyclictest18426-21switchtime07:49:432
717999340,47cyclictest18426-21switchtime07:49:432
71799933,38cyclictest2581-21cron09:44:052
71799933,36cyclictest31308-21fschecks_count08:29:272
70299933,65cyclictest226652date08:04:190
70299933,65cyclictest226652date08:04:190
70299933,59cyclictest9239-21seq07:22:570
702999326,51cyclictest0-21swapper/010:29:220
70299932,58cyclictest25325-21seq09:27:060
70299932,57cyclictest26418-21ssh09:29:200
70299932,54cyclictest16598-21ntp_states07:44:370
702999317,60cyclictest0-21swapper/008:54:320
71799923,36cyclictest14809-21grep09:09:312
71299923,76cyclictest24370-21runrttasks10:19:531
70299923,77cyclictest29461-21apt-get08:24:170
70299922,54cyclictest0-21swapper/008:39:300
702999215,46cyclictest0-21swapper/011:54:160
71799918,29cyclictest23603-21apt-get10:19:212
71799913,35cyclictest11101-21latency_hist07:29:082
70299919,51cyclictest0-21swapper/009:16:070
70299913,57cyclictest18966-21seq07:53:180
70299913,57cyclictest18966-21seq07:53:180
70299912,54cyclictest0-21swapper/011:54:070
70299912,53cyclictest352-21runrttasks08:08:130
702999113,53cyclictest11568-21if_eth007:29:290
71799904,36cyclictest10691-21timerwakeupswit10:49:412
71799904,34cyclictest352-21runrttasks07:56:552
71799904,32cyclictest9922-21sshd11:43:282
71799903,41cyclictest6263-21latency_hist07:14:092
71799903,41cyclictest6263-21latency_hist07:14:092
71799903,36cyclictest352-21runrttasks09:36:362
71799903,35cyclictest20920-21/usr/sbin/munin10:14:452
70299903,79cyclictest8949-21apt-get09:54:240
70299903,79cyclictest8949-21apt-get09:54:240
70299903,57cyclictest15496-21seq07:40:230
71799896,35cyclictest18763-21switchtime10:09:402
71799894,35cyclictest21653-21latency_hist11:09:092
71799894,35cyclictest21653-21latency_hist11:09:092
71799893,34cyclictest30806-21/usr/sbin/munin10:29:382
70299893,80cyclictest0-21swapper/008:49:160
70299893,54cyclictest2914-21taskset07:04:200
70299893,54cyclictest2914-21taskset07:04:200
70299892,61cyclictest0-21swapper/011:24:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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