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2026-09-20 - 20:29
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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 792 highest latencies:
System rack1slot8.osadl.org (updated Sun Sep 20, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305422963943,14sleep10-21swapper/107:06:021
306562786762,16sleep00-21swapper/007:07:120
3097599469390,51cyclictest0-21swapper/007:54:320
3097599469390,51cyclictest0-21swapper/007:54:320
3097699463390,46cyclictest0-21swapper/107:10:101
3097699429349,47cyclictest0-21swapper/107:54:321
3097699429349,47cyclictest0-21swapper/107:54:321
228699970,11rtkit-daemon0-21swapper/008:21:460
228699960,10rtkit-daemon0-21swapper/009:21:270
228699960,10rtkit-daemon0-21swapper/009:09:160
228699940,11rtkit-daemon0-21swapper/008:05:310
228699940,10rtkit-daemon0-21swapper/010:30:430
30976998616,53cyclictest0-21swapper/107:41:001
3097599864,60cyclictest0-21swapper/007:10:100
185902820,4sleep118591-21cat08:05:011
228699810,2rtkit-daemon11495-21ssh09:12:021
30975997859,14cyclictest0-21swapper/009:32:590
241702780,3sleep124172-21idleruntime-cro12:35:011
228699750,12rtkit-daemon2285-21rtkit-daemon11:29:490
228699740,11rtkit-daemon0-21swapper/109:41:221
30976997316,35cyclictest0-21swapper/108:37:591
248812730,4chrt24883-21unixbench_multi09:35:280
243532730,2sleep041ktimersoftd/010:35:170
30976997115,35cyclictest0-21swapper/108:40:591
30976997018,32cyclictest0-21swapper/109:35:591
30976997016,33cyclictest0-21swapper/109:09:591
30976997015,33cyclictest0-21swapper/108:18:591
30976997013,36cyclictest0-21swapper/111:56:001
30976996917,35cyclictest0-21swapper/110:54:591
30976996917,33cyclictest0-21swapper/108:00:001
30975996927,25cyclictest0-21swapper/009:50:200
30976996815,35cyclictest0-21swapper/107:35:591
30976996718,29cyclictest0-21swapper/112:17:581
30976996716,33cyclictest0-21swapper/109:26:591
30976996715,33cyclictest0-21swapper/112:04:001
30975996729,16cyclictest31151-21idleruntime-cro08:40:010
30975996728,33cyclictest23975-21ssh11:35:000
30975996725,36cyclictest28604-21runrttasks09:43:430
30976996618,31cyclictest0-21swapper/108:51:001
30976996615,33cyclictest0-21swapper/111:16:001
30976996612,34cyclictest0-21swapper/108:24:001
30975996623,37cyclictest16987-21sh11:20:220
30975996619,40cyclictest0-21swapper/012:15:220
3097699659,40cyclictest0-21swapper/108:30:591
30976996517,32cyclictest0-21swapper/109:04:001
30976996517,30cyclictest0-21swapper/110:24:591
30976996517,29cyclictest0-21swapper/111:51:001
30976996512,33cyclictest0-21swapper/108:26:591
30975996542,17cyclictest0-21swapper/010:50:140
30975996522,33cyclictest6333-21ssh11:00:270
30976996414,35cyclictest0-21swapper/111:01:001
30976996414,33cyclictest0-21swapper/107:28:001
30976996414,32cyclictest0-21swapper/108:55:591
30975996441,17cyclictest0-21swapper/011:40:250
30975996435,22cyclictest4965-21ssh10:00:080
30975996432,26cyclictest0-21swapper/009:56:240
30975996423,33cyclictest15562-21ssh10:19:420
30976996314,33cyclictest0-21swapper/109:50:591
30976996313,32cyclictest0-21swapper/107:16:591
30975996340,17cyclictest0-21swapper/010:55:150
30975996334,24cyclictest0-21swapper/011:55:200
30975996323,33cyclictest7303-21ssh12:02:450
30975996320,36cyclictest0-21swapper/010:41:480
30976996215,33cyclictest0-21swapper/109:20:591
30976996214,33cyclictest0-21swapper/109:55:591
30976996214,30cyclictest0-21swapper/112:21:591
30976996213,32cyclictest0-21swapper/110:18:591
30976996213,28cyclictest0-21swapper/108:45:591
30975996234,22cyclictest0-21swapper/012:30:410
30975996231,26cyclictest0-21swapper/012:14:190
30975996226,16cyclictest32106-21munin-run11:50:000
30975996222,33cyclictest9695-21diskmemload11:19:290
30975996215,32cyclictest0-21swapper/009:25:200
30976996115,34cyclictest0-21swapper/110:03:591
3097599616,48cyclictest0-21swapper/009:45:180
30975996132,22cyclictest9695-21diskmemload10:07:120
30975996130,26cyclictest0-21swapper/011:37:120
30975996123,32cyclictest9166-21runrttasks07:36:500
30975996123,15cyclictest31886-21ssh10:49:570
30975996123,15cyclictest18172-21ssh12:22:570
30975996119,35cyclictest1361-21load08:45:190
30975996040,16cyclictest0-21swapper/011:10:410
30975996040,16cyclictest0-21swapper/011:10:410
30975996039,16cyclictest0-21swapper/012:09:130
30975996036,20cyclictest0-21swapper/011:05:160
30975996036,20cyclictest0-21swapper/011:05:160
30975996023,15cyclictest12713-21ssh10:14:110
30975996021,32cyclictest7687-21chrt07:35:000
30975996021,21cyclictest16854-21munin-node08:00:280
3097699595,37cyclictest0-21swapper/110:06:591
30976995915,31cyclictest0-21swapper/108:11:001
30976995915,30cyclictest0-21swapper/110:28:591
30976995915,30cyclictest0-21swapper/107:48:591
30976995914,33cyclictest0-21swapper/112:06:591
30976995914,32cyclictest0-21swapper/107:20:591
30976995914,29cyclictest0-21swapper/110:32:001
30976995913,31cyclictest0-21swapper/112:37:591
30976995911,35cyclictest0-21swapper/109:19:591
30976995911,34cyclictest0-21swapper/111:35:591
3097599597,46cyclictest0-21swapper/012:25:180
3097599597,46cyclictest0-21swapper/009:10:270
30975995941,14cyclictest0-21swapper/010:25:150
30975995925,15cyclictest453-21munin-node07:15:160
30975995922,29cyclictest16421-21kernelversion10:20:180
30975995921,33cyclictest26694-21processes08:25:240
30975995916,36cyclictest0-21swapper/008:55:180
30975995822,29cyclictest20533-21head08:10:130
30975995822,29cyclictest1333-21ssh11:51:020
30975995817,26cyclictest0-21swapper/012:35:190
95872574,11sleep10-21swapper/111:06:581
95872574,11sleep10-21swapper/111:06:581
30976995711,31cyclictest0-21swapper/110:39:591
3097599576,45cyclictest0-21swapper/007:40:160
30975995734,17cyclictest0-21swapper/007:45:190
30975995723,28cyclictest8250irq/14-pata_sch08:20:000
30975995721,27cyclictest15218-21ssh09:20:010
228699570,3rtkit-daemon2285-21rtkit-daemon11:21:141
30976995617,26cyclictest0-21swapper/111:25:591
30976995614,29cyclictest0-21swapper/111:31:591
30976995612,31cyclictest0-21swapper/108:09:001
30976995612,30cyclictest0-21swapper/111:49:591
30976995612,30cyclictest0-21swapper/110:12:591
3097599566,26cyclictest0-21swapper/009:00:270
30975995636,16cyclictest0-21swapper/007:55:180
30975995624,26cyclictest4234-21munin-node07:25:140
30975995624,26cyclictest3251-21missed_timers08:50:200
30975995623,25cyclictest29339-21latency_hist08:35:020
30975995622,26cyclictest31304-21munin-node08:40:130
30976995515,28cyclictest0-21swapper/112:29:591
30976995513,31cyclictest0-21swapper/110:57:591
228699540,4rtkit-daemon2285-21rtkit-daemon11:10:441
228699540,4rtkit-daemon2285-21rtkit-daemon11:10:441
30976995315,29cyclictest0-21swapper/110:45:001
30975995318,30cyclictest0-21swapper/007:23:590
313332524,12sleep10-21swapper/110:48:001
30976995212,29cyclictest0-21swapper/112:13:591
311372504,12sleep10-21swapper/109:48:051
30976995013,28cyclictest0-21swapper/111:40:591
76732494,11sleep10-21swapper/107:34:561
3097699467,33cyclictest0-21swapper/109:30:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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