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2025-12-28 - 14:29
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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 Dec 28, 2025 12:47:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
173361227292672,38sleep0172352-21kworker/0:1+events@
dbs_work_handler
07:05:260
1745419913628,64cyclictest297762-21missed_timers10:15:250
17455899135110,9cyclictest268409-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
09:55:223
1745419913327,60cyclictest268409-21kworker/u12:4+rpciod@
rpc_async_schedule
09:55:460
1745419913124,67cyclictest438474-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
12:25:170
1745419912827,56cyclictest392259-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
11:40:310
1745419912463,51cyclictest68950irq/527-eth0-Tx11:45:320
1745419912075,33cyclictest210-21kswapd009:35:150
1745419912075,33cyclictest210-21kswapd009:35:150
1745419911918,85cyclictest295080-21rm10:13:160
174541991191,6cyclictest442418-21/usr/sbin/munin12:20:190
1745419911767,32cyclictest0-21swapper/011:25:010
1745419911767,32cyclictest0-21swapper/011:25:000
1745419911477,29cyclictest0-21swapper/008:48:530
174541991142,81cyclictest0-21swapper/012:05:060
1745419911376,28cyclictest68950irq/527-eth0-Tx07:55:350
1745419911376,28cyclictest68950irq/527-eth0-Tx07:55:350
1745419911374,30cyclictest68950irq/527-eth0-Tx11:33:280
174541991134,75cyclictest262046-21kworker/u12:3+rpciod@
rpc_async_schedule
09:45:110
174541991134,75cyclictest262046-21kworker/u12:3+rpciod@
rpc_async_schedule
09:45:110
1745419911335,55cyclictest0-21swapper/010:45:130
1745419911232,66cyclictest320003-21sed10:35:010
1745419911227,58cyclictest415391-1kworker/u13:1+xprtiod@
xs_stream_data_receive_workfn
12:00:210
1745419911227,58cyclictest415391-1kworker/u13:1+xprtiod@
xs_stream_data_receive_workfn
12:00:210
1745419911171,29cyclictest68950irq/527-eth0-Tx11:15:010
1745419911164,33cyclictest0-21swapper/008:29:350
1745419911078,22cyclictest68950irq/527-eth0-Tx10:40:300
1745419911066,33cyclictest15-21rcuc/010:35:270
1745419911040,48cyclictest69050irq/528-eth0-Tx10:00:220
1745419911028,61cyclictest69050irq/528-eth0-Tx09:14:350
1745419910971,29cyclictest68950irq/527-eth0-Tx08:05:310
1745419910970,29cyclictest68950irq/527-eth0-Tx11:51:290
1745419910970,29cyclictest68950irq/527-eth0-Tx11:51:280
1745419910969,31cyclictest68950irq/527-eth0-Tx07:35:010
1745419910967,30cyclictest69050irq/528-eth0-Tx09:40:210
1745419910967,30cyclictest69050irq/528-eth0-Tx09:40:210
1745419910921,70cyclictest0-21swapper/010:05:130
1745589910899,6cyclictest210-21kswapd011:40:263
1745419910878,20cyclictest68950irq/527-eth0-Tx12:30:330
1745419910870,29cyclictest0-21swapper/011:29:360
1745419910866,33cyclictest1989202sleep008:10:110
1745419910866,33cyclictest1989202sleep008:10:110
1745419910857,32cyclictest438474-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
12:18:280
174541991082,29cyclictest302940-21kworker/u12:1+rpciod@
rpc_async_schedule
10:59:150
1745469910796,8cyclictest210-21kswapd009:40:271
1745469910796,8cyclictest210-21kswapd009:40:271
1745419910769,27cyclictest68950irq/527-eth0-Tx08:40:330
1745419910769,27cyclictest68950irq/527-eth0-Tx08:40:330
1745419910768,28cyclictest0-21swapper/008:00:280
1745419910668,29cyclictest68950irq/527-eth0-Tx08:35:150
1745419910656,32cyclictest179652-21ntpq07:20:510
174541991062,79cyclictest331339-21kworker/u12:3+rpciod@
rpc_async_schedule
11:00:350
174541991062,79cyclictest262046-21kworker/u12:3+rpciod@
rpc_async_schedule
09:50:190
174541991062,79cyclictest262046-21kworker/u12:3+rpciod@
rpc_async_schedule
09:50:190
1745419910570,27cyclictest0-21swapper/009:02:590
1745419910469,27cyclictest69050irq/528-eth0-Tx09:20:230
1745419910469,27cyclictest69050irq/528-eth0-Tx09:20:230
1745419910466,28cyclictest69050irq/528-eth0-Tx07:10:240
1745419910456,38cyclictest68950irq/527-eth0-Tx11:15:320
1745419910431,56cyclictest0-21swapper/009:30:410
1745419910431,56cyclictest0-21swapper/009:30:410
1745419910371,22cyclictest68950irq/527-eth0-Tx09:15:250
1745419910364,30cyclictest68950irq/527-eth0-Tx12:10:150
1745419910359,32cyclictest0-21swapper/007:15:410
1745419910358,30cyclictest0-21swapper/007:35:400
1745419910337,55cyclictest0-21swapper/008:50:390
1745419910331,58cyclictest0-21swapper/009:25:180
1745419910331,58cyclictest0-21swapper/009:25:180
1745589910293,6cyclictest210-21kswapd011:15:253
1745419910230,60cyclictest180801-21/usr/sbin/munin07:25:170
1745629910192,5cyclictest332672-21ssh10:45:264
1745419910166,24cyclictest0-21swapper/011:06:520
1745419910160,30cyclictest0-21swapper/008:55:450
1745419910160,30cyclictest0-21swapper/008:55:440
1745419910156,32cyclictest0-21swapper/007:54:150
1745419910148,24cyclictest0-21swapper/008:34:510
1745419910138,43cyclictest461985-21systemd-userwor12:36:310
1745629910095,2cyclictest0-21swapper/407:39:524
1745419910054,32cyclictest222880-21diskmemload10:20:170
174558999985,7cyclictest225846-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
09:25:163
174558999985,7cyclictest225846-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
09:25:163
174541999968,23cyclictest196437-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
08:20:000
17454199992,81cyclictest186847-21/usr/sbin/munin07:40:390
17454199992,81cyclictest186847-21/usr/sbin/munin07:40:380
174551999884,7cyclictest196437-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
09:05:092
174546999884,7cyclictest365219-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
11:25:451
174541999852,31cyclictest0-21swapper/008:24:150
174541999828,59cyclictest413341-21/usr/sbin/munin11:55:170
174541999826,49cyclictest302940-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
10:25:100
174562999788,5cyclictest457065-21ssh12:32:354
174541999758,30cyclictest0-21swapper/010:50:140
174541999753,29cyclictest0-21swapper/009:05:150
174541999650,31cyclictest0-21swapper/011:36:510
174541999556,29cyclictest69050irq/528-eth0-Tx07:45:210
174558999483,7cyclictest210-21kswapd010:25:113
174546998850,20cyclictest210-21kswapd010:40:261
174562998778,5cyclictest266863-21ssh09:49:154
174562998778,5cyclictest266863-21ssh09:49:154
174562998774,7cyclictest226022-21diskmemload-412:22:154
174558998774,6cyclictest180464-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
07:33:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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