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2026-05-03 - 13:46
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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 Sun May 03, 2026 12:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2134878222072190,8sleep22108047-21kworker/2:0+events@
dbs_work_handler
07:05:452
21350692288272,8sleep02134910-21kworker/0:0+events@
dbs_work_handler
07:08:210
213535999150111,30cyclictest2301206-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
10:55:190
213535999150111,30cyclictest2301206-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
10:55:180
213535999140102,29cyclictest2389727-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
12:35:440
213535999140102,29cyclictest2389727-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
12:35:440
21353599913325,24cyclictest0-21swapper/009:15:140
213537499120107,7cyclictest2389727-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
12:25:393
213537499120107,7cyclictest2389727-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
12:25:383
2135359991182,52cyclictest2259580-21/usr/sbin/munin10:10:420
21353599911760,50cyclictest2375310-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
11:45:440
21353599911760,50cyclictest2375310-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
11:45:440
21353599911341,48cyclictest2315956-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
11:20:270
2135359991131,47cyclictest0-21swapper/011:35:300
2135359991122,50cyclictest0-21swapper/011:40:120
21353599911160,31cyclictest13-21ksoftirqd/010:50:190
21353599911160,31cyclictest13-21ksoftirqd/010:50:180
21353599911066,32cyclictest2183797-21diskmemload09:35:200
21353599911054,49cyclictest2147173-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
08:17:310
21353599911054,49cyclictest2147173-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
08:17:310
2135359991101,57cyclictest0-21swapper/012:30:210
2135359991101,57cyclictest0-21swapper/012:30:210
21353599910975,26cyclictest2147173-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
08:04:430
21353599910923,27cyclictest13-21ksoftirqd/011:05:320
21353599910921,25cyclictest0-21swapper/010:23:300
21353599910866,38cyclictest210-21kswapd011:10:260
2135359991082,89cyclictest0-21swapper/012:00:010
21353599910772,26cyclictest2348537-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
12:05:360
21353599910663,32cyclictest0-21swapper/008:55:380
21353599910622,27cyclictest0-21swapper/009:10:150
2135359991055,5cyclictest69150irq/529-eth0-Tx09:25:000
2135359991052,50cyclictest0-21swapper/010:35:080
2135359991051,46cyclictest0-21swapper/009:25:160
2135359991042,62cyclictest0-21swapper/010:40:220
21353599910415,40cyclictest0-21swapper/012:20:310
21353799910384,14cyclictest2257964-21diskmemload-410:10:094
21353599910366,30cyclictest2163472-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
08:30:030
2135359991032,50cyclictest0-21swapper/010:30:190
2135359991032,48cyclictest2411521-21runrttasks12:11:340
21353599910321,25cyclictest0-21swapper/011:50:440
2135359991023,86cyclictest69050irq/528-eth0-Tx10:25:170
21353599910229,54cyclictest2197538-21kworker/0:0+pm@
pm_runtime_work
09:45:230
21353599910219,47cyclictest13-21ksoftirqd/010:45:350
2135359991021,49cyclictest0-21swapper/012:25:160
2135359991021,49cyclictest0-21swapper/012:25:160
21353749910187,7cyclictest2242770-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
10:25:133
21353699910188,7cyclictest2325495-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
11:15:222
21353599910169,24cyclictest2179657-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
09:02:160
21353599910169,24cyclictest2179657-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
09:02:150
2135359991011,87cyclictest0-21swapper/010:00:340
21353599910116,69cyclictest0-21swapper/010:15:480
21353599910019,16cyclictest2116185-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
07:11:510
21353599910015,6cyclictest2177638-21kworker/u12:2+rpciod@
rpc_async_schedule
09:30:290
2135359999969,22cyclictest2256008-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
10:09:340
2135359999944,38cyclictest2358806-21ssh11:30:060
213535999992,49cyclictest0-21swapper/009:50:440
213535999992,49cyclictest0-21swapper/009:50:430
213535999992,46cyclictest2415221-21apt-get12:15:110
2135374999885,6cyclictest2266902-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
10:39:343
2135374999884,7cyclictest2375310-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
12:15:393
213535999982,51cyclictest2353759-21ssh11:25:360
2135364999782,8cyclictest2294207-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
10:40:181
213535999978,38cyclictest0-21swapper/011:00:380
213535999978,38cyclictest0-21swapper/011:00:370
2135359999717,5cyclictest2239648-21df_abs09:55:200
2135359999717,5cyclictest2239648-21df_abs09:55:190
2135359999666,23cyclictest2171463-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
08:44:480
2135374999582,6cyclictest2163472-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
08:24:473
2135374999581,7cyclictest2375310-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
11:44:093
2135359999562,25cyclictest2147247-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
07:39:390
213535999951,45cyclictest0-21swapper/007:30:360
2135359999438,25cyclictest2159162-21sed08:05:430
2135385999387,3cyclictest0-21swapper/510:55:195
2135385999387,3cyclictest0-21swapper/510:55:185
2135374999379,7cyclictest2342040-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
11:17:043
2135359999331,14cyclictest13-21ksoftirqd/007:15:350
213535999922,50cyclictest0-21swapper/012:00:340
2135359999220,27cyclictest2150911-21timerwakeupswit07:45:430
2135359999220,27cyclictest2150911-21timerwakeupswit07:45:430
2135359999161,27cyclictest2218422-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
09:41:350
2135369999078,6cyclictest2232679-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
09:55:062
2135369999078,6cyclictest2232679-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
09:55:052
2135359999022,17cyclictest13301-21runrttasks11:20:020
2135374998975,7cyclictest2188008-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
09:20:393
2135374998963,8cyclictest2232679-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
10:01:023
213535999892,55cyclictest2143028-21chrt07:26:060
2135374998876,7cyclictest210-21kswapd010:45:163
2135374998874,7cyclictest2325495-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
11:05:203
2135374998874,7cyclictest2315956-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
11:01:323
2135374998874,7cyclictest2315956-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
11:01:313
2135374998874,7cyclictest2218422-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
09:45:003
213535999885,53cyclictest2165254-21unixbench_multi08:20:430
22576282870,3sleep50-21swapper/510:10:025
2135379998775,7cyclictest2288716-21ssh10:34:344
2135374998773,7cyclictest2348537-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
11:32:373
213535999872,45cyclictest2151687-21/usr/sbin/munin07:50:420
2135385998678,4cyclictest0-21swapper/512:35:445
2135385998678,4cyclictest0-21swapper/512:35:445
2135374998672,7cyclictest2389727-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
11:59:353
2135374998672,7cyclictest2179657-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
09:05:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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