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2026-01-10 - 11:03
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Sat Jan 10, 2026 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1131521430,0sleep7761rcuc/723:17:097
161521230,0sleep11613-21sshd22:14:371
2933621210,0sleep10-21swapper/123:20:401
2822421200,4sleep71476799cyclictest00:35:157
83821190,3sleep41474699cyclictest23:16:424
295721180,0sleep60-21swapper/621:33:146
152842960,0sleep40-21swapper/400:16:454
162112900,0sleep40-21swapper/422:06:544
311652890,1sleep4491rcuc/422:50:214
184592890,4sleep31474199cyclictest22:48:293
287242860,1sleep124-21ksoftirqd/121:45:181
45452840,0sleep40-21swapper/421:18:044
45452840,0sleep40-21swapper/421:18:044
258472840,0sleep325825-21sshd23:46:473
158582820,0sleep40-21swapper/422:45:334
294062810,0sleep329399-21sshd22:54:293
287142810,4sleep41474699cyclictest23:01:194
8632800,1sleep5835-21sshd23:58:115
189032800,1sleep778-21ksoftirqd/722:25:017
7592790,1sleep30-21swapper/300:10:353
209932790,1sleep315438-1kworker/3:2H23:43:513
88822780,1sleep00-21swapper/022:31:270
88822780,1sleep00-21swapper/022:31:260
290532780,1sleep31-21systemd22:43:243
290532780,1sleep31-21systemd22:43:233
17072780,0sleep10-21swapper/121:53:531
135262770,1sleep00-21swapper/021:51:360
96962760,1sleep69690-21sshd21:50:056
33792760,0sleep50-21swapper/500:12:055
295152760,0sleep50-21swapper/523:22:045
167892760,0sleep00-21swapper/023:43:390
144882760,0sleep70-21swapper/721:48:537
272412750,0sleep20-21swapper/222:48:512
131112750,1sleep20-21swapper/223:28:192
80612740,0sleep40-21swapper/423:35:014
78612740,0sleep40-21swapper/423:10:094
230222740,1sleep4501ktimersoftd/423:21:484
211522740,0sleep60-21swapper/623:50:436
84522730,0sleep40-21swapper/400:05:244
298962730,1sleep629895-21sshd23:42:496
74992720,0sleep50-21swapper/523:17:005
39132720,0sleep40-21swapper/421:13:564
320752720,1sleep71012-21runrttasks23:09:487
317932720,0sleep20-21swapper/223:47:032
235222720,1sleep523497-21sshd23:08:025
140252720,0sleep50-21swapper/523:03:295
140172720,0sleep20-21swapper/200:30:292
116942710,1sleep10-21swapper/122:02:351
297722700,0sleep20-21swapper/222:30:572
297722700,0sleep20-21swapper/222:30:562
280892700,0sleep70-21swapper/722:58:347
262942700,0sleep7761rcuc/700:24:097
93912690,0sleep60-21swapper/623:39:136
66932690,0sleep30-21swapper/322:35:303
66932690,0sleep30-21swapper/322:35:293
310462690,0sleep50-21swapper/521:52:205
298952690,4sleep21473499cyclictest00:38:072
79052680,4sleep21473499cyclictest00:08:092
325062680,1sleep20-21swapper/221:13:462
29582680,0sleep30-21swapper/322:18:463
228972680,0sleep00-21swapper/022:37:360
228972680,0sleep00-21swapper/022:37:350
135362680,0sleep00-21swapper/021:37:480
114742670,1sleep081ktimersoftd/022:06:410
104162670,0sleep70-21swapper/722:45:197
102372650,0sleep40-21swapper/422:35:394
102372650,0sleep40-21swapper/422:35:394
67342640,1sleep233-21ksoftirqd/223:44:372
12372610,0sleep60-21swapper/622:54:416
28742600,0sleep20-21swapper/222:04:592
168742580,4sleep11472999cyclictest00:33:261
1446525848,6sleep50-21swapper/519:09:325
1442825848,6sleep30-21swapper/319:09:063
1445825746,7sleep70-21swapper/719:09:267
178252540,1sleep09151-21kworker/0:100:07:110
1438725443,7sleep00-21swapper/019:08:310
192852530,0sleep10-21swapper/123:53:261
1447024535,6sleep10-21swapper/119:09:361
1246624434,6sleep40-21swapper/419:05:064
251682430,4sleep31474199cyclictest19:30:123
1417524231,7sleep60-21swapper/619:05:486
1425324131,6sleep20-21swapper/219:06:482
236222290,1sleep1221rcuc/122:41:461
236222290,1sleep1221rcuc/122:41:451
1475199278,18cyclictest0-21swapper/500:02:035
1473499270,25cyclictest0-21swapper/222:22:452
1473499260,21cyclictest0-21swapper/221:00:172
223492250,0sleep30-21swapper/322:32:013
223492250,0sleep30-21swapper/322:32:013
1476299253,20cyclictest0-21swapper/623:01:396
1474699250,19cyclictest0-21swapper/420:55:444
14722992520,2cyclictest91rcu_preempt23:50:570
80272240,1sleep10-21swapper/100:39:581
272542240,1sleep30-21swapper/321:54:583
180172240,1sleep20-21swapper/221:28:212
180172240,1sleep20-21swapper/221:28:202
1476799242,21cyclictest0-21swapper/721:08:337
1476299240,19cyclictest0-21swapper/620:49:396
1476299240,17cyclictest0-21swapper/621:24:016
1476299240,17cyclictest0-21swapper/621:24:006
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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