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2026-01-04 - 02:56
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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 Sun Jan 04, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183572668647,14sleep10-21swapper/119:08:151
1857299421337,53cyclictest0-21swapper/119:10:171
1857199418338,73cyclictest0-21swapper/019:45:200
1857299411332,46cyclictest32001-21strings19:45:211
1857199404322,50cyclictest0-21swapper/019:10:170
181272323300,16sleep00-21swapper/019:05:540
228699810,6rtkit-daemon2285-21rtkit-daemon23:40:080
208562750,2sleep113-21rcu_preempt00:35:191
1857199752,66cyclictest12234-21cut00:20:200
18571997512,57cyclictest30874-21unixbench_multi23:00:280
1857299733,8cyclictest32402-21ssh00:00:121
18571997322,45cyclictest88850irq/46-eth0-tx-22:05:220
1857199712,63cyclictest20199-21ssh23:39:130
18571997033,31cyclictest0-21swapper/021:20:470
1857299695,58cyclictest0-21swapper/121:39:281
1857199692,60cyclictest2146-21runrttasks19:51:540
1857299685,9cyclictest0-21swapper/122:35:101
1857299685,9cyclictest0-21swapper/100:16:081
1857299685,57cyclictest0-21swapper/123:17:541
1857299682,9cyclictest21779-21ntp_kernel_pll_22:45:221
1857299682,8cyclictest27416-21munin-node23:50:251
1857299676,9cyclictest0-21swapper/100:30:261
1857299676,56cyclictest0-21swapper/119:56:331
1857299675,10cyclictest0-21swapper/122:09:271
1857299674,13cyclictest0-21swapper/122:44:101
1857299674,10cyclictest13328-21idleruntime-cro20:25:011
1857299673,6cyclictest19676-21grep21:45:291
1857299672,7cyclictest14089-21chrt00:24:201
18572996713,46cyclictest0-21swapper/122:27:111
1857199677,53cyclictest0-21swapper/023:10:110
1857199675,48cyclictest0-21swapper/000:35:270
1857199672,51cyclictest6408-21munin-node20:05:150
1857199672,50cyclictest32441-21latency_hist21:15:020
18571996718,43cyclictest88850irq/46-eth0-tx-21:32:570
1857299665,56cyclictest0-21swapper/123:10:421
1857299665,12cyclictest0-21swapper/100:06:431
1857299664,13cyclictest0-21swapper/100:26:351
1857299663,8cyclictest15626-21head20:30:141
1857299663,7cyclictest29459-21ssh23:55:141
18572996621,37cyclictest2211-21Xorg19:18:591
1857299662,8cyclictest27379-21irqstats22:55:181
18572996618,41cyclictest0-21swapper/123:25:241
1857199663,57cyclictest31648-21sh23:58:410
18571996620,40cyclictest88850irq/46-eth0-tx-00:15:180
1857199662,58cyclictest676-21runrttasks21:15:170
1857199662,57cyclictest10937-21ssh23:22:290
1857199662,34cyclictest28474-21ssh22:00:300
228699650,5rtkit-daemon2285-21rtkit-daemon22:20:010
1857299655,55cyclictest0-21swapper/123:03:161
1857299655,54cyclictest0-21swapper/121:19:341
1857299654,13cyclictest0-21swapper/123:21:021
1857299652,9cyclictest12790-21wc22:30:181
1857299652,6cyclictest17836-21ntpq20:35:261
18572996517,40cyclictest0-21swapper/122:10:131
18572996513,46cyclictest19693-21ssh23:37:391
1857199653,55cyclictest14485-21munin-node00:25:170
1857199652,38cyclictest21559-21iostat22:45:180
1857299647,49cyclictest6860-21df_inode22:20:151
1857299646,53cyclictest0-21swapper/119:20:281
1857299645,52cyclictest1568-21runrttasks21:25:341
1857299644,8cyclictest0-21swapper/123:33:521
1857299644,12cyclictest0-21swapper/121:52:001
1857299643,8cyclictest8548-21munin-node20:10:181
1857299643,7cyclictest6343-21munin-run22:20:011
1857299643,7cyclictest23805-21ssh23:45:151
1857299643,7cyclictest10229-21ssh21:30:211
1857299643,10cyclictest22548-21munin-node20:50:131
1857299643,10cyclictest13592-21aten_r1power_po20:25:121
1857299642,9cyclictest88750irq/45-eth0-rx-22:05:001
1857299642,7cyclictest25015-21munin-node21:55:191
18572996413,44cyclictest0-21swapper/122:52:001
1857199643,54cyclictest18121-21munin-node22:40:300
1857199642,56cyclictest29587-21diskmemload00:07:170
1857199642,56cyclictest28190-21munin-node19:35:160
1857199642,55cyclictest28218-21ssh23:52:050
1857199642,40cyclictest7800-21ssh00:12:510
1857299636,49cyclictest0-21swapper/120:45:161
1857299634,12cyclictest0-21swapper/100:10:281
1857299633,9cyclictest29591-21aten_r1power_en19:40:171
1857299633,55cyclictest15688-21ssh21:40:131
1857299633,52cyclictest27124-21munin-node21:00:251
1857299632,9cyclictest19335-21hwlatdetect20:40:181
1857299632,7cyclictest9910-21aten_r1power_en20:15:121
1857299632,13cyclictest30193-21munin-node21:10:161
1857299632,10cyclictest5984-21sshd20:03:411
18572996315,43cyclictest3877-21idleruntime21:20:161
18571996337,21cyclictest0-21swapper/022:53:200
1857199633,36cyclictest6540-21ssh22:20:130
1857199633,36cyclictest12337-21munin-node22:30:260
1857199632,54cyclictest4297-21rsyslogd20:00:000
1857199632,54cyclictest18828-21ssh00:31:030
1857199632,54cyclictest16375-21unixbench_multi22:35:270
1857199632,54cyclictest14862-21munin-node23:30:210
18571996311,45cyclictest0-21swapper/022:55:170
1857299625,9cyclictest28427-21munin-node21:05:161
1857299625,51cyclictest2223-21sh23:07:301
1857299623,8cyclictest24492-21grep19:25:161
1857299623,8cyclictest1568-21runrttasks20:55:171
1857299623,52cyclictest21200-21ssh23:40:171
1857199625,51cyclictest0-21swapper/023:28:190
1857199625,32cyclictest0-21swapper/021:40:200
18571996234,22cyclictest0-21swapper/023:08:260
1857199622,54cyclictest2694-21sh00:04:580
1857199622,54cyclictest12547-21munin-node21:35:240
1857199622,53cyclictest13480-21munin-node20:25:160
1857199622,39cyclictest24630-21ssh21:55:130
1857199622,33cyclictest7258-21munin-node21:25:230
18571996216,34cyclictest8250irq/14-pata_sch22:26:210
1857299616,48cyclictest0-21swapper/119:50:141
1857299613,8cyclictest6341-21aten_r1power_fr20:05:151
1857299613,8cyclictest28150-21munin-node19:35:171
1857299613,8cyclictest26670-21munin-node19:30:221
18571996140,16cyclictest0-21swapper/021:54:570
1857199612,52cyclictest25965-21idleruntime-cro21:00:000
1857199612,39cyclictest29613-21aten_r1power_fr19:40:170
1857199612,34cyclictest582-21ssh22:10:120
18571996115,40cyclictest88850irq/46-eth0-tx-23:16:590
1857199604,50cyclictest23806-21df23:45:150
1857199602,52cyclictest29587-21diskmemload21:48:520
1857199602,52cyclictest22580-21aten_r1power_fr20:50:140
1857199602,51cyclictest15801-21iostat20:30:170
1857199592,50cyclictest22166-21latency_hist19:20:010
1857199592,34cyclictest29083-21munin-node21:05:240
1857199582,50cyclictest5857-21chrt20:02:310
1857199582,36cyclictest24726-21memory19:25:180
1857199582,36cyclictest18881-21latency_hist20:40:010
1857199582,35cyclictest22559-21df19:20:150
1857199572,49cyclictest11736-21aten2.4-expect20:20:130
1857199563,47cyclictest8668-21cat20:10:190
1857199562,48cyclictest25927-21munin-node19:30:140
1857199562,47cyclictest20699-21munin-node20:45:120
1857199562,47cyclictest18738-21crond20:39:590
1857199562,47cyclictest10589-21munin-node20:15:200
1857199532,46cyclictest26111-21seq21:00:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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