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2026-01-11 - 02:46
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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 Jan 11, 2026 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28483039915846,36cyclictest2995923-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:10:310
28483039915846,36cyclictest2995923-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:10:310
284831499153113,18cyclictest3101469-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
00:28:291
28483039914565,57cyclictest3011828-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
22:45:180
28483039914138,40cyclictest3073731-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:45:320
28483039914138,40cyclictest3073731-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:45:310
28483039913542,34cyclictest3109595-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:13:440
284832299134120,7cyclictest2988751-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:28:152
28483039913092,30cyclictest2880191-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
20:32:540
28483039913090,19cyclictest3016041-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
22:58:180
28483039913090,19cyclictest3016041-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
22:58:170
28483039912890,17cyclictest3004950-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:40:200
28483039912871,49cyclictest2957445-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
22:25:280
28483039912362,42cyclictest2897958-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:10:400
28483039911877,20cyclictest2854189-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:25:150
28483039911754,44cyclictest2858514-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:55:380
28483039911754,44cyclictest2858514-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:55:370
28483039911697,15cyclictest210-21kswapd021:30:270
28483039911680,15cyclictest3061469-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
00:03:260
28483039911680,15cyclictest3061469-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
00:03:250
284832299112100,6cyclictest3016041-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
22:53:172
28483039911135,58cyclictest69050irq/528-eth0-Tx23:05:360
28483039911135,58cyclictest69050irq/528-eth0-Tx23:05:360
284835199110104,3cyclictest0-21swapper/523:30:265
28483149910894,7cyclictest3101469-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
00:20:181
28483149910592,7cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:38:221
28483039910486,14cyclictest210-21kswapd022:50:270
28483149910391,6cyclictest2897958-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:33:061
28483149910390,7cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:53:251
28483149910390,7cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:53:241
28483039910384,15cyclictest210-21kswapd023:40:270
28483039910325,40cyclictest3063170-21grep23:25:450
28483039910283,14cyclictest3130056-21ssh00:20:260
28483039910276,19cyclictest2880191-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:03:000
28483039910276,19cyclictest2880191-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:02:590
28483039910175,18cyclictest3101469-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:58:450
28483039910175,18cyclictest3101469-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:58:450
2848303991012,58cyclictest13-21ksoftirqd/023:35:400
28483149910086,7cyclictest3109595-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:13:261
31073452990,6sleep10-21swapper/100:01:571
31073452990,6sleep10-21swapper/100:01:571
2848314999987,6cyclictest2934256-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
21:43:131
2848314999987,6cyclictest2934256-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
21:43:121
2848303999977,19cyclictest2924822-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:53:080
284830399991,87cyclictest0-21swapper/020:25:420
2848303999842,13cyclictest15-21rcuc/023:51:310
2848303999842,13cyclictest15-21rcuc/023:51:310
2848314999783,7cyclictest2841009-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
19:12:391
2848332999684,8cyclictest3068333-21bingrep23:30:263
2848314999682,7cyclictest2924822-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:50:031
2848332999587,5cyclictest210-21kswapd022:30:073
2848303999570,18cyclictest2861353-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
20:05:140
2848314999484,6cyclictest210-21kswapd022:50:261
2848314999471,10cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:43:231
2848303999473,17cyclictest210-21kswapd023:30:270
2848303999466,19cyclictest2897958-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:23:540
284830399941,81cyclictest0-21swapper/022:15:430
284830399941,81cyclictest0-21swapper/022:15:420
2848340999388,2cyclictest0-21swapper/421:30:264
2848303999366,19cyclictest2924822-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:45:320
2848351999285,3cyclictest0-21swapper/523:18:215
2848351999285,3cyclictest0-21swapper/523:18:205
2848322999278,7cyclictest3109595-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:38:282
2848303999266,19cyclictest2934256-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
22:10:140
2848303999266,19cyclictest2934256-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
22:10:140
2848303999265,19cyclictest2861353-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
20:23:140
2848303999255,30cyclictest2897958-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:56:190
2848351999186,2cyclictest0-21swapper/500:20:165
2848340999184,3cyclictest0-21swapper/420:32:534
2848332999171,7cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:25:093
2848322999178,6cyclictest3135952-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
00:26:442
2848314999165,9cyclictest2903963-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:28:041
2848303999165,19cyclictest2957445-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
22:35:560
2848303999165,19cyclictest2856314-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
19:30:220
2848303999155,29cyclictest2924822-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:05:260
2848303999136,16cyclictest13-21ksoftirqd/021:15:380
2848340999078,7cyclictest3018987-21ssh22:50:264
2848314999076,7cyclictest2903963-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:38:071
2848314999076,7cyclictest2903963-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:38:061
2848303999071,14cyclictest210-21kswapd000:05:060
2848303999064,19cyclictest2895157-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
21:08:240
2848303999058,23cyclictest68950irq/527-eth0-Tx00:15:130
2848351998982,3cyclictest0-21swapper/520:20:285
2848322998971,6cyclictest3101469-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
00:01:142
2848322998971,6cyclictest3101469-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
00:01:142
2848303998966,18cyclictest2957431-21bingrep22:00:270
2848303998965,20cyclictest2897958-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:44:360
2848303998965,20cyclictest2897958-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:44:350
2848303998962,20cyclictest2995923-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:19:380
2848303998962,20cyclictest2995923-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:19:370
2848340998868,10cyclictest2948205-21ssh21:53:084
2848322998875,6cyclictest2861353-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
20:09:342
2848314998875,7cyclictest2995923-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
22:43:141
2848303998860,20cyclictest2858514-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:50:130
284830399881,83cyclictest0-21swapper/019:40:310
2848340998782,2cyclictest0-21swapper/422:58:184
2848340998782,2cyclictest0-21swapper/422:58:174
2848340998775,7cyclictest3130055-21ssh00:20:264
2848332998772,8cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:50:163
2848332998772,8cyclictest3022962-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:50:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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