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2026-06-11 - 05:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot4.osadl.org (updated Thu Jun 11, 2026 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27690259916437,82cyclictest2837620-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:45:430
27690259916437,82cyclictest2837620-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:45:430
2769025991222,78cyclictest3055222-21kworker/u12:2+flush-0:56@
wb_workfn
00:31:180
303472321210,4sleep00-21swapper/000:05:570
303472321210,4sleep00-21swapper/000:05:570
27690259912090,22cyclictest0-21swapper/020:05:110
27690259912090,22cyclictest0-21swapper/020:05:100
27690259912066,18cyclictest2869048-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:21:260
27690259911941,70cyclictest2799201-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
20:30:210
27690259911836,65cyclictest3025539-21systemd-userwor23:59:310
27690259911836,65cyclictest3025539-21systemd-userwor23:59:310
27690259911834,65cyclictest69050irq/528-eth0-Tx22:05:280
276905199115108,3cyclictest0-21swapper/521:26:215
276905199115108,3cyclictest0-21swapper/521:26:205
27690259911433,65cyclictest2817725-21diskmemload22:40:220
27690259911175,27cyclictest69050irq/528-eth0-Tx20:55:160
27690259911174,28cyclictest68950irq/527-eth0-Tx21:00:170
27690259911174,27cyclictest68950irq/527-eth0-Tx23:29:310
2769025991111,80cyclictest0-21swapper/021:30:440
27690259911068,30cyclictest69150irq/529-eth0-Tx00:27:480
2769025991101,79cyclictest15-21rcuc/022:10:190
27690259910972,26cyclictest68950irq/527-eth0-Tx23:08:410
27690259910886,13cyclictest69150irq/529-eth0-Tx22:25:150
27690259910886,13cyclictest69150irq/529-eth0-Tx22:25:150
2769025991081,83cyclictest0-21swapper/023:10:310
2769025991081,83cyclictest0-21swapper/023:10:310
2769025991071,82cyclictest0-21swapper/020:25:140
2769025991071,80cyclictest0-21swapper/023:35:320
276905199106100,3cyclictest0-21swapper/522:55:305
27690259910673,23cyclictest69050irq/528-eth0-Tx23:34:000
27690259910667,17cyclictest68950irq/527-eth0-Tx23:50:360
27690259910631,43cyclictest0-21swapper/021:25:210
27690259910631,43cyclictest0-21swapper/021:25:200
27690259910571,12cyclictest68950irq/527-eth0-Tx23:47:140
27690259910568,16cyclictest68950irq/527-eth0-Tx23:20:390
2769025991052,76cyclictest0-21swapper/022:34:130
27690259910464,17cyclictest69150irq/529-eth0-Tx22:51:330
27690259910458,18cyclictest0-21swapper/020:35:260
27690259910458,18cyclictest0-21swapper/020:35:260
2769025991042,55cyclictest0-21swapper/020:50:570
2769025991042,55cyclictest0-21swapper/020:50:560
27690259910367,11cyclictest0-21swapper/000:10:340
27690259910364,12cyclictest2817725-21diskmemload21:15:280
27690259910332,46cyclictest69150irq/529-eth0-Tx21:40:120
27690259910332,46cyclictest69150irq/529-eth0-Tx21:40:120
2769025991031,85cyclictest0-21swapper/020:20:270
2769025991031,85cyclictest0-21swapper/020:20:260
27690519910296,3cyclictest0-21swapper/520:11:085
27690259910271,11cyclictest69050irq/528-eth0-Tx19:15:170
27690259910271,11cyclictest69050irq/528-eth0-Tx19:15:160
2769025991021,75cyclictest0-21swapper/021:10:150
27690259910163,17cyclictest68950irq/527-eth0-Tx22:00:150
27690259910131,45cyclictest2902705-21latency_hist22:20:010
27690259910124,52cyclictest0-21swapper/022:45:160
2769025991011,76cyclictest0-21swapper/019:35:580
2769025991011,6cyclictest2790161-21memory20:00:240
27690259910061,18cyclictest68950irq/527-eth0-Tx19:10:380
2769025991002,65cyclictest0-21swapper/023:00:170
2769025991001,82cyclictest0-21swapper/019:25:290
2769025999968,24cyclictest3048784-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:20:340
2769025999950,26cyclictest2807364-21runrttasks20:42:230
2769025999929,36cyclictest3002471-21ssh23:40:210
2769025999836,25cyclictest69150irq/529-eth0-Tx21:35:370
2769025999829,33cyclictest0-21swapper/022:35:380
2769025999823,45cyclictest2951951-21ssh23:00:000
276902599971,71cyclictest0-21swapper/020:10:310
276902599971,70cyclictest0-21swapper/019:30:140
2769051999386,3cyclictest0-21swapper/500:14:355
2769051999286,3cyclictest0-21swapper/523:06:395
2769051999286,3cyclictest0-21swapper/522:21:505
28462112910,14sleep230-21ksoftirqd/221:34:272
2769035998975,6cyclictest2992931-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:53:112
2769030998976,6cyclictest3019551-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
00:18:371
2769051998882,3cyclictest0-21swapper/500:03:225
2769030998874,7cyclictest3070806-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
00:38:461
2769051998780,3cyclictest0-21swapper/521:56:275
2769046998776,5cyclictest2821030-21diskmemload-421:46:154
2769046998776,5cyclictest2821030-21diskmemload-421:46:154
2769046998680,3cyclictest0-21swapper/419:56:054
276863228657,20sleep40-21swapper/419:06:494
2769051998579,3cyclictest0-21swapper/500:31:335
2769051998577,4cyclictest0-21swapper/523:30:245
2769051998478,3cyclictest0-21swapper/523:20:045
2769051998478,3cyclictest0-21swapper/520:51:355
2769051998478,3cyclictest0-21swapper/520:51:355
2769051998477,3cyclictest0-21swapper/521:31:295
2769051998476,3cyclictest0-21swapper/522:52:285
276902599841,73cyclictest0-21swapper/019:45:380
2769035998370,6cyclictest2786931-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
20:34:462
2769025998352,17cyclictest0-21swapper/021:55:180
2769025998325,45cyclictest2817922-21latency_hist21:10:020
2769051998276,3cyclictest0-21swapper/522:44:415
2769051998275,3cyclictest0-21swapper/520:19:545
2769046998263,12cyclictest3058158-21ssh00:25:174
2769025998263,4cyclictest69050irq/528-eth0-Tx19:40:130
2769025998251,14cyclictest0-21swapper/000:35:130
2769025998229,43cyclictest2972621-21cat23:15:450
2769025998229,43cyclictest2972621-21cat23:15:450
2769025998229,41cyclictest2787535-21/usr/sbin/munin19:55:180
276902599822,69cyclictest0-21swapper/021:54:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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