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2026-06-17 - 01:42
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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 highest latencies:
System rack1slot8.osadl.org (updated Wed Jun 17, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115672896874,15sleep10-21swapper/119:09:181
112512689665,16sleep00-21swapper/019:06:060
11678995144,424cyclictest0-21swapper/119:10:031
1167799501424,70cyclictest0-21swapper/019:20:170
1167799485415,63cyclictest0-21swapper/019:10:020
1167899304248,23cyclictest16086-21strings19:20:181
116779913314,113cyclictest0-21swapper/023:59:590
1167899867,19cyclictest0-21swapper/123:15:191
228699830,5rtkit-daemon2285-21rtkit-daemon20:49:110
11677998212,63cyclictest0-21swapper/020:37:590
11677998212,63cyclictest0-21swapper/020:37:580
228699810,4rtkit-daemon2285-21rtkit-daemon21:00:111
228699810,4rtkit-daemon2285-21rtkit-daemon21:00:101
283412800,4sleep128342-21df19:55:141
1167899797,19cyclictest0-21swapper/123:55:191
11678997919,15cyclictest0-21swapper/123:33:071
11678997914,15cyclictest0-21swapper/123:40:291
1167899788,19cyclictest0-21swapper/122:30:001
1167899777,20cyclictest0-21swapper/100:00:161
1167899777,20cyclictest0-21swapper/100:00:151
1167899776,28cyclictest0-21swapper/123:45:181
1167899776,28cyclictest0-21swapper/123:45:171
1167899776,16cyclictest0-21swapper/121:11:281
1167899775,22cyclictest0-21swapper/122:22:061
1167899774,21cyclictest18557-21ssh22:56:451
11678997710,21cyclictest0-21swapper/122:40:001
11678997710,20cyclictest0-21swapper/122:40:241
1167899768,19cyclictest0-21swapper/119:35:081
1167899767,22cyclictest0-21swapper/122:15:221
1167899767,19cyclictest0-21swapper/121:40:221
1167899767,19cyclictest0-21swapper/100:24:221
1167899766,27cyclictest0-21swapper/120:05:261
11678997618,15cyclictest0-21swapper/122:50:191
11678997616,18cyclictest0-21swapper/123:50:141
11678997614,18cyclictest0-21swapper/121:05:111
11678997613,19cyclictest0-21swapper/100:10:211
11678997613,14cyclictest0-21swapper/120:15:141
11678997613,14cyclictest0-21swapper/119:30:181
11677997648,22cyclictest0-21swapper/000:38:110
1167899758,20cyclictest0-21swapper/121:50:201
1167899757,21cyclictest0-21swapper/123:05:151
1167899757,20cyclictest0-21swapper/122:11:451
1167899757,19cyclictest0-21swapper/121:55:131
1167899757,19cyclictest0-21swapper/100:16:551
1167899756,28cyclictest0-21swapper/123:25:171
1167899756,27cyclictest0-21swapper/121:28:391
1167899756,27cyclictest0-21swapper/100:06:471
1167899756,26cyclictest0-21swapper/100:37:451
1167899756,25cyclictest0-21swapper/123:04:371
1167899756,25cyclictest0-21swapper/100:28:591
1167899756,24cyclictest0-21swapper/123:20:101
1167899755,27cyclictest0-21swapper/121:37:061
1167899755,27cyclictest0-21swapper/121:24:071
11678997515,14cyclictest0-21swapper/119:17:091
11678997511,19cyclictest0-21swapper/122:00:141
11677997544,25cyclictest0-21swapper/023:50:140
1167899749,18cyclictest0-21swapper/120:25:081
1167899748,19cyclictest0-21swapper/123:35:171
1167899747,59cyclictest0-21swapper/100:32:301
1167899747,29cyclictest0-21swapper/120:40:161
1167899746,23cyclictest0-21swapper/121:31:001
1167899746,19cyclictest0-21swapper/120:45:281
1167899742,24cyclictest27042-21munin-node19:50:231
11678997418,13cyclictest0-21swapper/120:10:291
11678997415,13cyclictest0-21swapper/121:15:211
11678997413,17cyclictest0-21swapper/122:05:161
11678997411,15cyclictest0-21swapper/122:30:251
1167899737,26cyclictest0-21swapper/123:10:021
1167899737,18cyclictest0-21swapper/120:40:011
1167899737,18cyclictest0-21swapper/120:40:001
1167899736,30cyclictest0-21swapper/119:45:151
1167899736,28cyclictest0-21swapper/122:45:101
1167899736,27cyclictest0-21swapper/120:51:191
1167899736,25cyclictest0-21swapper/120:20:231
1167899736,18cyclictest0-21swapper/119:40:131
1167899736,16cyclictest0-21swapper/120:00:161
1167899735,26cyclictest0-21swapper/120:34:521
11678997312,17cyclictest0-21swapper/121:45:111
1167899725,28cyclictest0-21swapper/120:55:201
1167899717,17cyclictest0-21swapper/119:25:161
11677997148,17cyclictest0-21swapper/019:42:250
11677997040,23cyclictest0-21swapper/021:50:220
11677997011,52cyclictest0-21swapper/000:07:260
11677997010,53cyclictest21292-21latency00:00:190
11677997010,53cyclictest21292-21latency00:00:180
228699690,4rtkit-daemon2285-21rtkit-daemon21:10:520
11677996943,20cyclictest0-21swapper/022:19:300
11677996941,22cyclictest0-21swapper/023:48:470
11677996941,22cyclictest0-21swapper/023:48:460
1167799692,49cyclictest5655-21latency_hist22:35:010
11677996837,25cyclictest0-21swapper/022:35:120
1167799682,52cyclictest29698-21crond20:00:010
11677996810,53cyclictest0-21swapper/022:59:580
1167799673,35cyclictest31834-21munin-node00:20:150
1167799672,48cyclictest30273-21ssh00:15:270
11677996712,47cyclictest0-21swapper/022:52:200
11677996645,15cyclictest0-21swapper/021:45:260
11677996644,16cyclictest0-21swapper/000:15:010
11677996639,20cyclictest0-21swapper/023:18:170
11677996639,20cyclictest0-21swapper/022:02:540
1167799662,57cyclictest31874-21timerwakeupswit23:20:260
11677996538,20cyclictest0-21swapper/022:26:490
1167799653,56cyclictest10214-21ssh21:45:010
1167799652,35cyclictest10513-21sendmail_mailqu23:40:240
11677996519,34cyclictest0-21swapper/019:30:590
228699640,5rtkit-daemon2285-21rtkit-daemon23:36:430
11677996443,15cyclictest0-21swapper/021:20:130
11677996442,16cyclictest0-21swapper/023:25:260
11677996441,17cyclictest0-21swapper/000:30:120
1167799643,54cyclictest15271-21latency_hist19:20:020
11677996340,16cyclictest0-21swapper/021:34:220
1167799632,54cyclictest5903-21unixbench_multi21:35:270
1167799632,47cyclictest18590-21vmstat20:55:280
1167799632,35cyclictest1568-21runrttasks19:47:030
1167799632,34cyclictest11558-21egrep22:45:140
1167799632,33cyclictest27840-21ssh23:14:590
11677996317,41cyclictest88850irq/46-eth0-tx-23:01:100
11677996227,28cyclictest0-21swapper/023:30:160
1167799622,53cyclictest22642-21aten_r1power_vo23:05:140
1167799622,34cyclictest26666-21unixbench-2d21:15:280
11677996219,37cyclictest88850irq/46-eth0-tx-21:28:210
228699610,13rtkit-daemon2285-21rtkit-daemon20:00:150
11677996140,15cyclictest0-21swapper/019:50:390
11677996136,19cyclictest0-21swapper/021:55:080
1167799613,51cyclictest25013-21ssh22:10:200
11677996129,26cyclictest0-21swapper/000:26:460
1167799612,53cyclictest2326-21grep20:10:270
11677996115,33cyclictest0-21swapper/020:16:580
11677996039,15cyclictest0-21swapper/021:05:110
1167799602,31cyclictest30921-21grep22:20:270
11677996016,31cyclictest0-21swapper/019:28:000
11677996015,33cyclictest0-21swapper/021:01:000
11677996015,33cyclictest0-21swapper/021:00:590
11677995916,32cyclictest0-21swapper/020:28:580
11677995836,16cyclictest0-21swapper/022:40:260
1167799582,51cyclictest22268-21sh22:05:240
1167799582,31cyclictest16703-21unixbench_multi20:50:260
11677995714,30cyclictest0-21swapper/019:36:010
1167799567,42cyclictest0-21swapper/020:40:150
1167799562,30cyclictest9087-21netstat20:30:220
1167799553,45cyclictest32414-21munin-node20:05:240
1167799545,43cyclictest0-21swapper/020:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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