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2025-07-13 - 11:52
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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 Jul 13, 2025 00:46:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2178486231773159,9sleep22176512-21kworker/2:3+events@
dbs_work_handler
19:07:422
21783552208184,15sleep40-21swapper/419:05:554
217883499140134,3cyclictest0-21swapper/421:13:164
231055121190,4sleep40-21swapper/422:25:174
231055121190,4sleep40-21swapper/422:25:164
217883499111105,3cyclictest0-21swapper/419:22:564
217883499111105,3cyclictest0-21swapper/419:22:554
21788309911199,6cyclictest2295832-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
22:13:263
21788309911096,7cyclictest2396558-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:48:393
21788159910750,28cyclictest2278242-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
22:23:270
21788159910750,28cyclictest2278242-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
22:23:260
21788159910716,60cyclictest2222235-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
21:08:140
2178815991061,62cyclictest0-21swapper/019:45:430
21788309910186,8cyclictest2284380-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:18:273
2178815991012,65cyclictest0-21swapper/021:11:520
21788249910086,7cyclictest2263722-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:03:252
2178824999987,6cyclictest2396558-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
00:33:472
2178815999953,26cyclictest15-21rcuc/021:55:420
217881599991,61cyclictest2288831-21ssh22:05:330
217881599982,82cyclictest2400152-21ps23:40:390
2178815999817,15cyclictest64250irq/527-eth0-Tx00:21:360
2178815999817,15cyclictest64250irq/527-eth0-Tx00:21:360
2178815999611,7cyclictest2330684-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:51:590
2178815999611,7cyclictest2330684-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:51:590
2178824999581,7cyclictest2229723-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:43:202
2178815999367,19cyclictest2330684-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:33:380
217881599931,3cyclictest0-21swapper/020:25:210
2178815999118,15cyclictest2293844-21df_abs22:10:230
217881599911,30cyclictest0-21swapper/021:15:380
2178830999076,7cyclictest2330684-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:48:323
2178830999076,7cyclictest2330684-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:48:323
2178815999025,33cyclictest64250irq/527-eth0-Tx22:50:420
2178815999025,33cyclictest64250irq/527-eth0-Tx22:50:410
2178830998975,7cyclictest2307506-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:03:343
2178830998975,7cyclictest2307506-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:03:333
2178815998932,31cyclictest64350irq/528-eth0-Tx23:06:240
2178815998916,18cyclictest64550irq/530-eth0-Tx21:30:320
2178815998916,18cyclictest64550irq/530-eth0-Tx21:30:320
2178815998855,23cyclictest0-21swapper/023:23:400
217881599882,35cyclictest0-21swapper/021:42:080
2178815998768,16cyclictest2396558-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:58:390
217881599875,62cyclictest2297477-1kworker/u13:2+xprtiod@
xs_stream_data_receive_workfn
22:15:390
217881599872,67cyclictest64550irq/530-eth0-Tx21:24:210
217881599872,67cyclictest64550irq/530-eth0-Tx21:24:210
217881599871,63cyclictest2406075-21rt-features23:45:440
217881599871,3cyclictest0-21swapper/019:30:250
2178815998712,15cyclictest64250irq/527-eth0-Tx22:00:530
217881599862,4cyclictest2369499-21apt-get23:15:180
2178815998618,48cyclictest64550irq/530-eth0-Tx23:37:330
217881599861,75cyclictest0-21swapper/019:53:060
217881599861,75cyclictest0-21swapper/019:53:050
2178815998617,53cyclictest64550irq/530-eth0-Tx23:00:140
2178815998617,53cyclictest64550irq/530-eth0-Tx23:00:140
217881599861,3cyclictest0-21swapper/019:22:370
217881599861,3cyclictest0-21swapper/019:22:370
217881599851,74cyclictest0-21swapper/020:19:130
2178830998471,6cyclictest2396558-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:53:383
2178830998471,6cyclictest2396558-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:53:373
2178815998428,33cyclictest64550irq/530-eth0-Tx22:35:470
2178815998428,33cyclictest64550irq/530-eth0-Tx22:35:460
217881599842,60cyclictest2382666-21rm23:25:350
2178815998423,12cyclictest0-21swapper/022:34:040
2178815998423,12cyclictest0-21swapper/022:34:030
217881599841,62cyclictest0-21swapper/000:06:070
217881599841,62cyclictest0-21swapper/000:06:070
217881599836,5cyclictest64250irq/527-eth0-Tx21:50:280
2178815998324,40cyclictest2346537-21rm22:55:380
2178815998321,12cyclictest0-21swapper/000:10:430
2178815998317,14cyclictest2258546-21ssh21:39:360
2178815998313,17cyclictest64350irq/528-eth0-Tx00:25:210
2178815998313,17cyclictest64350irq/528-eth0-Tx00:25:210
2178834998276,3cyclictest0-21swapper/400:08:424
2178834998276,3cyclictest0-21swapper/400:08:424
217881599822,6cyclictest2212268-21sendmail-mta20:33:580
217881599822,6cyclictest2212268-21sendmail-mta20:33:570
217881599822,4cyclictest2226528-21diskmemload00:35:320
2178815998216,13cyclictest0-21swapper/021:49:100
217881599811,3cyclictest0-21swapper/020:14:030
2178824998065,7cyclictest2436229-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
00:28:462
2178824998065,7cyclictest2436229-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
00:28:462
217881599802,27cyclictest2238985-21kworker/u12:2+rpciod@
rpc_async_schedule
21:28:460
2178815998019,14cyclictest64250irq/527-eth0-Tx00:15:150
2178815998016,14cyclictest0-21swapper/022:45:010
2178815998016,14cyclictest0-21swapper/022:45:010
2178834997973,3cyclictest0-21swapper/421:48:214
217881599792,59cyclictest2423090-21bingrep00:00:280
217881599792,59cyclictest2423090-21bingrep00:00:270
2178834997870,4cyclictest0-21swapper/400:30:254
2178815997823,39cyclictest0-21swapper/022:45:230
2178815997823,39cyclictest0-21swapper/022:45:220
217881599781,63cyclictest0-21swapper/020:21:140
217881599781,63cyclictest0-21swapper/019:10:110
217881599781,3cyclictest0-21swapper/020:47:340
2178834997764,8cyclictest2316431-21ssh22:30:214
2178834997764,8cyclictest2316431-21ssh22:30:204
2178820997765,6cyclictest2226388-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:33:201
2178820997765,6cyclictest2226388-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:33:191
217881599771,58cyclictest0-21swapper/023:10:240
217881599771,3cyclictest0-21swapper/020:38:310
217881599761,66cyclictest0-21swapper/020:40:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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