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2026-05-07 - 09:32
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack3slot0.osadl.org (updated Thu May 07, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
365521010,2sleep1649899cyclictest21:32:561
231852880,2sleep3650999cyclictest23:53:223
9512800,2sleep1649899cyclictest22:18:051
37592680,2sleep0649199cyclictest21:13:490
78462560,1sleep27841-21sshd23:52:252
34602530,1sleep13461-21sshd23:57:531
258782510,1sleep1758-21runrttasks00:19:071
258782510,1sleep1758-21runrttasks00:19:071
607124925,8sleep00-21swapper/019:06:020
239662490,0sleep30-21swapper/323:28:073
177312490,0sleep40-21swapper/423:21:434
605824825,9sleep50-21swapper/519:05:515
230672480,0sleep623066-21systemd-cgroups23:33:556
185632470,1sleep318561-21sshd23:41:213
180952470,0sleep30-21swapper/323:14:053
167852470,2sleep0649199cyclictest22:26:530
106392470,0sleep4663-21in:imjournal22:12:474
102332470,0sleep50-21swapper/522:05:035
38532460,0sleep50-21swapper/500:17:355
38532460,0sleep50-21swapper/500:17:355
292082460,1sleep1241ktimersoftd/123:41:591
302972440,1sleep130295-21sshd21:22:551
302972440,1sleep130295-21sshd21:22:551
127622440,0sleep40-21swapper/421:57:104
76792430,1sleep17676-21bash23:54:241
291452430,0sleep2311rcuc/200:05:142
225502430,0sleep3391rcuc/322:29:203
220342430,1sleep6641ktimersoftd/621:18:356
157262430,0sleep60-21swapper/623:52:536
85822420,0sleep30-21swapper/300:33:513
630524229,9sleep20-21swapper/219:09:162
628824231,8sleep70-21swapper/719:09:057
250762420,0sleep60-21swapper/621:22:366
250762420,0sleep60-21swapper/621:22:366
16322420,0sleep00-21swapper/000:07:290
158962420,0sleep4758-21runrttasks00:08:214
612124130,8sleep10-21swapper/119:06:431
14482410,0sleep60-21swapper/623:24:426
622824027,9sleep30-21swapper/319:08:133
139952400,0sleep2321ktimersoftd/223:39:112
83832390,0sleep70-21swapper/723:23:067
604123928,8sleep60-21swapper/619:05:366
599923927,9sleep40-21swapper/419:05:014
266752390,0sleep60-21swapper/600:07:036
209772390,0sleep00-21swapper/023:49:190
91632380,0sleep3758-21runrttasks23:44:413
283472380,0sleep40-21swapper/400:36:564
290672360,0sleep20-21swapper/221:24:402
6515992411,2cyclictest49-21ksoftirqd/421:10:484
6491992316,1cyclictest121rcu_preempt21:25:050
6491992313,1cyclictest9-21ksoftirqd/023:54:520
649199225,5cyclictest9-21ksoftirqd/000:22:390
6491992217,4cyclictest9-21ksoftirqd/021:57:090
6491992216,4cyclictest9-21ksoftirqd/023:38:160
6491992211,1cyclictest9-21ksoftirqd/023:04:020
651599213,3cyclictest49-21ksoftirqd/421:47:014
6515992117,3cyclictest49-21ksoftirqd/422:46:194
650499216,3cyclictest33-21ksoftirqd/223:19:402
650499214,3cyclictest33-21ksoftirqd/223:00:582
6498992115,5cyclictest26191-21sshd22:37:281
649199215,3cyclictest9-21ksoftirqd/023:15:130
649199215,3cyclictest9-21ksoftirqd/023:15:130
652399206,2cyclictest31896-21sshd22:51:155
6515992016,3cyclictest49-21ksoftirqd/421:26:334
650499207,3cyclictest33-21ksoftirqd/223:33:022
650499205,3cyclictest33-21ksoftirqd/223:11:102
650499203,3cyclictest33-21ksoftirqd/200:33:222
649199206,3cyclictest9-21ksoftirqd/023:49:360
6491992018,1cyclictest9-21ksoftirqd/000:00:520
6491992016,4cyclictest9-21ksoftirqd/000:15:040
6491992016,4cyclictest9-21ksoftirqd/000:15:040
296942200,0sleep40-21swapper/421:34:354
651599199,1cyclictest49-21ksoftirqd/423:29:304
651599198,2cyclictest49-21ksoftirqd/421:43:164
651599198,1cyclictest49-21ksoftirqd/423:13:144
651599197,3cyclictest49-21ksoftirqd/423:05:104
651599196,3cyclictest49-21ksoftirqd/422:15:324
6515991917,1cyclictest49-21ksoftirqd/421:19:424
6515991917,1cyclictest49-21ksoftirqd/421:19:424
6515991915,3cyclictest49-21ksoftirqd/421:18:144
650499196,2cyclictest33-21ksoftirqd/221:19:492
650499196,2cyclictest33-21ksoftirqd/221:19:492
650499195,3cyclictest33-21ksoftirqd/221:54:372
650499195,1cyclictest464-21systemd-journal00:37:052
650499195,1cyclictest121rcu_preempt21:54:232
650499194,1cyclictest33-21ksoftirqd/223:05:022
6504991915,3cyclictest33-21ksoftirqd/222:29:172
649199195,3cyclictest9-21ksoftirqd/021:41:410
649199195,1cyclictest9-21ksoftirqd/022:56:560
649199195,1cyclictest9-21ksoftirqd/022:19:250
649199195,1cyclictest131rcu_sched22:29:300
649199192,2cyclictest9-21ksoftirqd/021:19:430
649199192,2cyclictest9-21ksoftirqd/021:19:430
6491991915,1cyclictest9-21ksoftirqd/021:51:500
6491991914,3cyclictest9-21ksoftirqd/023:41:100
6515991817,1cyclictest49-21ksoftirqd/423:34:264
6515991816,1cyclictest49-21ksoftirqd/421:54:024
6515991815,3cyclictest49-21ksoftirqd/423:46:324
6515991815,1cyclictest49-21ksoftirqd/422:59:514
6515991814,1cyclictest49-21ksoftirqd/423:41:414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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