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2025-12-23 - 17:26
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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 376 highest latencies:
System rack1slot8.osadl.org (updated Tue Dec 23, 2025 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1034299781701,48cyclictest0-21swapper/107:19:001
1034199774695,52cyclictest0-21swapper/007:18:590
100642515492,16sleep00-21swapper/007:07:330
1034299344277,29cyclictest0-21swapper/107:10:021
1768221070,11sleep1271ktimersoftd/109:58:111
1034199763,55cyclictest0-21swapper/012:14:070
10341997624,46cyclictest88850irq/46-eth0-tx-09:15:160
1034199762,68cyclictest6903-21latency_hist08:30:010
1034199743,50cyclictest2977-21iostat12:20:160
1034199743,50cyclictest2977-21iostat12:20:150
10341997427,41cyclictest88850irq/46-eth0-tx-11:21:590
1034199742,57cyclictest21177-21latency_hist10:05:010
1034199742,55cyclictest0-21swapper/010:03:300
1034199732,56cyclictest5101-21latency_hist08:25:010
1034199724,47cyclictest17517-21ssh09:57:380
1034199717,57cyclictest0-21swapper/010:26:230
1034199713,61cyclictest24259-21munin-node10:10:200
1034199713,46cyclictest7970-21ssh10:36:290
1034199712,8cyclictest27266-21sort11:10:200
1034199712,8cyclictest27266-21sort11:10:190
1034199712,62cyclictest10669-21munin-node08:40:240
1034199703,61cyclictest17476-21sh10:54:100
1034199703,47cyclictest20642-21munin-run11:00:020
1034199702,61cyclictest31206-21ssh11:16:520
1034199702,61cyclictest30311-21munin-node09:25:230
1034199702,45cyclictest29849-21latency_hist10:20:000
10341997014,50cyclictest4264-21df09:35:160
10341997014,50cyclictest4264-21df09:35:160
1034299696,57cyclictest0-21swapper/111:46:251
1034299696,56cyclictest0-21swapper/111:30:361
1034299693,59cyclictest7771-21processes09:40:221
1034199693,60cyclictest25650-21ssh12:04:190
1034199693,45cyclictest8751-21irqstats12:30:200
1034199693,44cyclictest636-21ssh12:15:300
1034199693,44cyclictest636-21ssh12:15:290
1034199692,7cyclictest1189-21snmpd10:45:290
1034199692,60cyclictest14649-21ssh09:52:420
1034199692,60cyclictest10516-21idleruntime-cro08:40:000
1034199692,44cyclictest6668-21ssh12:25:480
1034299683,57cyclictest88750irq/45-eth0-rx-12:22:521
1034299683,57cyclictest88750irq/45-eth0-rx-12:22:521
1034299682,60cyclictest13835-21ssh11:43:291
1034199683,46cyclictest26239-21ssh11:09:260
1034199683,46cyclictest26239-21ssh11:09:250
1034199682,60cyclictest878-21munin-node09:30:200
1034199682,60cyclictest24754-21latency_hist07:50:010
1034199682,60cyclictest13260-21ssh11:41:400
1034199682,59cyclictest28361-21latency_hist08:00:010
1034199682,50cyclictest6890-21ssh09:40:090
1034199682,46cyclictest10495-21munin-node07:10:140
1034199682,44cyclictest4766-21ssh11:27:110
1034199682,43cyclictest5714-21ssh10:33:270
1034199682,43cyclictest23676-21ssh09:13:360
1034299675,55cyclictest0-21swapper/111:51:561
1034199675,47cyclictest0-21swapper/010:20:490
1034199673,59cyclictest23152-21ssh11:03:480
1034199673,59cyclictest23152-21ssh11:03:470
1034199673,43cyclictest7865-21ssh11:32:510
10341996721,40cyclictest88850irq/46-eth0-tx-09:49:450
1034199672,9cyclictest10101-21ssh10:40:220
1034199672,50cyclictest9576-21ssh11:35:260
1034299663,7cyclictest27717-21munin-node10:15:191
1034299662,9cyclictest31551-21vmstat09:25:291
1034199663,45cyclictest26067-21munin-node12:05:130
10341996620,33cyclictest88850irq/46-eth0-tx-12:38:110
1034199662,58cyclictest1568-21runrttasks08:52:520
1034199662,58cyclictest15661-21grep11:45:260
1034199662,42cyclictest21847-21ssh11:56:290
1034299655,54cyclictest0-21swapper/112:13:301
1034299655,54cyclictest0-21swapper/109:15:521
1034299653,56cyclictest8307-21aten_r1power_po12:30:131
1034299653,55cyclictest27773-21unixbench-2d07:55:261
1034199653,6cyclictest17726-21latency_hist09:00:020
1034199653,43cyclictest24906-21munin-node07:50:150
1034199653,40cyclictest21546-21df07:40:130
1034199652,41cyclictest17402-21munin-node11:50:170
1034299644,55cyclictest0-21swapper/109:37:541
1034299644,55cyclictest0-21swapper/109:37:531
1034299643,9cyclictest16369-21df08:55:161
1034299643,7cyclictest3188-21runrttasks11:25:131
1034299643,7cyclictest21185-21latency_hist07:40:021
1034299643,55cyclictest29143-21sort08:00:171
1034299642,54cyclictest2211-21Xorg10:40:591
10342996419,40cyclictest25263-21munin-node10:10:251
10342996413,45cyclictest23324-21sh09:12:341
1034199643,46cyclictest28601-21ssh09:20:290
1034199642,8cyclictest32141-21munin-node08:10:120
1034199642,7cyclictest31090-21ntp_states08:05:220
1034299636,49cyclictest20281-21munin-node11:55:101
1034299635,53cyclictest0-21swapper/112:06:501
1034299635,52cyclictest0-21swapper/109:51:351
1034299634,51cyclictest11321-21munin-node08:40:201
1034299633,53cyclictest6429-21unixbench-2d12:25:261
1034299633,53cyclictest23927-21munin-node12:00:211
1034299633,52cyclictest30864-21munin-node10:20:241
1034299632,9cyclictest18102-21cut07:30:171
1034299632,7cyclictest22604-21runrttasks07:41:331
10342996313,45cyclictest13285-21sh12:38:291
10342996312,46cyclictest10169-21head09:45:151
1034199632,55cyclictest30303-21latency_hist08:05:010
1034299626,49cyclictest24033-21munin-node11:05:131
1034299626,49cyclictest24033-21munin-node11:05:131
1034299625,52cyclictest0-21swapper/112:19:221
1034299625,52cyclictest0-21swapper/112:19:221
1034299623,9cyclictest29534-21ssh11:15:101
1034299623,9cyclictest2430-21munin-node08:15:221
1034299623,7cyclictest23994-21munin-node07:45:251
1034299622,54cyclictest16420-21munin-node07:25:171
10342996214,42cyclictest27478-21aten2.4-expect09:20:131
10342996213,43cyclictest5285-21seq08:25:141
10342996213,43cyclictest21848-21sed11:00:261
10342996213,43cyclictest21848-21sed11:00:261
10342996212,45cyclictest19304-21sh10:55:491
10342996211,45cyclictest7804-21ntp_states08:30:211
1034199622,8cyclictest18177-21df_abs09:00:160
1034199622,8cyclictest18177-21df_abs09:00:150
1034199622,54cyclictest12518-21aten_r1power_en08:45:130
1034299617,48cyclictest0-21swapper/109:30:141
1034299616,48cyclictest0-21swapper/110:00:101
1034299614,8cyclictest0-21swapper/110:49:481
1034299614,8cyclictest0-21swapper/110:30:571
1034299613,52cyclictest9013-21munin-node11:35:171
1034299613,52cyclictest6498-21aten_r1power_po10:35:131
1034299613,52cyclictest32730-21latency_hist10:25:021
1034299613,52cyclictest31989-21munin-run08:10:011
1034299613,52cyclictest14340-21munin-node07:20:151
1034299613,51cyclictest22592-21munin-node10:05:281
1034299613,10cyclictest18343-21munin-node09:00:181
1034299613,10cyclictest18343-21munin-node09:00:171
1034299612,8cyclictest9170-21munin-node08:35:161
1034299612,52cyclictest11406-21munin-node07:10:261
1034199613,36cyclictest4645-21yum08:20:280
1034199612,53cyclictest21350-21idleruntime-cro09:10:000
1034199612,53cyclictest19644-21aten_r1power_vo07:35:130
1034199612,52cyclictest18018-21df_inode07:30:160
1034199612,51cyclictest1619-21cut08:15:110
1034299605,48cyclictest4324-21munin-node08:20:241
1034299604,51cyclictest870-21munin-node08:10:261
1034299603,8cyclictest15329-21munin-node10:50:181
1034299603,50cyclictest88750irq/45-eth0-rx-11:10:111
1034299603,50cyclictest88750irq/45-eth0-rx-11:10:111
1034299603,48cyclictest19702-21munin-node09:05:121
1034299602,51cyclictest12807-21gltestperf08:45:171
1034199602,52cyclictest15739-21latency_hist07:25:010
1034299593,9cyclictest25437-21munin-node07:50:161
1034299593,50cyclictest388-21basename11:20:181
1034299593,49cyclictest14606-21munin-node08:50:161
1034199592,8cyclictest16135-21df07:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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