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2025-11-21 - 15:39
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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 rack1slot8.osadl.org (updated Fri Nov 21, 2025 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2214899853793,46cyclictest0-21swapper/007:12:390
2214999806749,42cyclictest0-21swapper/107:12:401
21962273523,704sleep00-21swapper/007:08:280
216842429410,13sleep10-21swapper/107:05:421
216899960,10rtkit-daemon0-21swapper/010:04:150
216899950,9rtkit-daemon0-21swapper/011:03:060
2214999882,67cyclictest25872-21ssh12:37:001
22149998413,54cyclictest0-21swapper/110:47:591
216899840,5rtkit-daemon2167-21rtkit-daemon12:10:221
22149998210,57cyclictest0-21swapper/107:22:591
216899800,3rtkit-daemon9707-21ssh11:14:220
216899800,3rtkit-daemon708-21diskmemload11:21:420
22149997911,52cyclictest0-21swapper/111:41:581
2214899793,50cyclictest15959-21ssh09:35:010
22148997815,57cyclictest0-21swapper/009:19:320
231132760,4sleep123112-21ssh12:32:151
115352750,12sleep041ktimersoftd/010:20:480
2214899734,62cyclictest0-21swapper/012:23:090
2214899733,62cyclictest25488-21ssh11:40:240
2214899733,49cyclictest1427-21runrttasks11:56:200
2214899723,48cyclictest23344-21ksmtuned09:45:340
216899720,3rtkit-daemon4455-21telnet07:50:131
22149997115,38cyclictest0-21swapper/109:08:001
2214899715,60cyclictest0-21swapper/012:15:200
2214899715,59cyclictest0-21swapper/012:31:510
2214899715,58cyclictest0-21swapper/008:50:010
2214899715,39cyclictest26014-21ssh10:45:280
2214899713,57cyclictest20514-21latency_hist08:35:010
22148997124,41cyclictest0-21swapper/012:00:190
2214899712,62cyclictest16588-21sort11:25:190
2214899712,61cyclictest631-21ssh10:59:110
2214899704,36cyclictest24049-21ssh10:43:240
2214899703,40cyclictest29143-21ssh10:51:090
2214899702,61cyclictest19820-21ksmtuned12:26:000
22148997016,47cyclictest78950irq/46-eth0-tx-10:36:090
22149996920,27cyclictest0-21swapper/107:35:591
22148996951,14cyclictest0-21swapper/010:26:580
2214899693,57cyclictest10362-21ssh11:15:140
22148996929,25cyclictest78950irq/46-eth0-tx-09:35:260
2214899692,6cyclictest24127-21latency_hist08:45:020
2214899692,40cyclictest31425-21ssh11:50:240
22148996919,43cyclictest78950irq/46-eth0-tx-12:09:130
22148996919,43cyclictest78950irq/46-eth0-tx-10:11:560
22148996918,44cyclictest78950irq/46-eth0-tx-10:33:560
22149996812,35cyclictest0-21swapper/108:38:001
2214899684,37cyclictest26818-21ssh09:52:210
2214899683,50cyclictest9666-21ssh09:24:170
2214899682,6cyclictest30341-21latency_hist11:50:010
2214899682,57cyclictest19638-21diskmemload11:30:210
22148996819,42cyclictest0-21swapper/009:27:480
22148996818,44cyclictest78950irq/46-eth0-tx-09:13:390
2214999675,50cyclictest0-21swapper/109:40:591
22149996714,33cyclictest0-21swapper/110:00:001
22148996720,40cyclictest78950irq/46-eth0-tx-12:11:230
2214899672,59cyclictest708-21diskmemload09:59:130
2214899672,47cyclictest23924-21ssh11:38:180
2214899672,37cyclictest8943-21ssh10:16:490
22149996612,34cyclictest0-21swapper/108:11:581
2214899668,51cyclictest22327-21idleruntime-cro08:40:000
2214899665,53cyclictest0-21swapper/008:05:000
2214899665,47cyclictest0-21swapper/011:09:020
22148996626,25cyclictest78950irq/46-eth0-tx-10:05:300
22148996615,45cyclictest78950irq/46-eth0-tx-09:41:070
2214899654,35cyclictest24861-21munin-node12:35:200
2214899652,6cyclictest17063-21munin-node08:25:210
2214899646,50cyclictest0-21swapper/008:55:250
2214899643,37cyclictest16908-21idleruntime-cro08:25:000
2214899643,37cyclictest16908-21idleruntime-cro08:24:590
2214899642,6cyclictest29349-21latency_hist07:30:010
2214899642,55cyclictest7877-21sh08:00:000
22149996315,32cyclictest0-21swapper/107:28:591
22149996315,30cyclictest0-21swapper/108:30:591
22149996314,32cyclictest0-21swapper/108:24:591
22149996314,32cyclictest0-21swapper/108:24:591
22149996314,30cyclictest0-21swapper/110:12:591
2214899636,51cyclictest0-21swapper/007:50:010
22148996323,33cyclictest78950irq/46-eth0-tx-09:05:250
2214899632,6cyclictest26973-21unixbench_multi07:20:230
2214899632,55cyclictest5912-21runrttasks07:53:210
2214899632,53cyclictest24118-21aten_r1power_cu07:15:120
22149996212,33cyclictest0-21swapper/109:22:591
2214899625,52cyclictest0-21swapper/008:50:150
2214899625,50cyclictest0-21swapper/007:40:250
2214899622,53cyclictest31076-21ksmtuned07:34:140
22149996114,33cyclictest0-21swapper/109:32:591
22149996112,36cyclictest0-21swapper/111:32:581
2214899616,48cyclictest0-21swapper/009:00:210
2214899614,49cyclictest14064-21sshd08:15:210
2214899612,52cyclictest32379-21unixbench-2d07:35:270
22149996015,31cyclictest0-21swapper/108:53:591
22149996013,31cyclictest0-21swapper/109:39:591
22149996013,31cyclictest0-21swapper/107:31:591
22149996013,29cyclictest0-21swapper/111:18:001
2214899606,46cyclictest0-21swapper/008:10:160
2214899602,6cyclictest10018-21cpu08:05:110
22149995916,30cyclictest0-21swapper/111:54:581
22149995915,27cyclictest0-21swapper/107:45:591
22149995914,26cyclictest0-21swapper/112:05:591
22149995913,29cyclictest0-21swapper/108:45:591
22149995813,30cyclictest0-21swapper/111:14:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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