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2026-03-11 - 04:04
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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 rackcslot8.osadl.org (updated Wed Mar 11, 2026 00:48:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891265255,7phc2sys0-21swapper/219:05:1512
330891265255,7phc2sys0-21swapper/219:05:1512
7652992349,180cyclictest0-21swapper/1322:55:155
77729920912,121cyclictest151rcu_preempt23:37:2522
3273912030,195ptp4l0-21swapper/119:08:091
3273912030,195ptp4l0-21swapper/119:08:081
7652991859,143cyclictest0-21swapper/1321:50:175
7652991789,168cyclictest0-21swapper/1320:55:145
7652991789,108cyclictest0-21swapper/1320:44:005
76139916779,71cyclictest9858-21taskset21:15:5528
774699162162,0cyclictest151rcu_preempt22:05:1318
76059916130,128cyclictest0-21swapper/423:08:2826
7652991599,90cyclictest0-21swapper/1321:21:575
76059915730,126cyclictest0-21swapper/420:25:1426
76059915730,124cyclictest0-21swapper/400:03:5726
770799156154,1cyclictest151rcu_preempt22:35:1511
76059915631,87cyclictest0-21swapper/422:23:0426
76059915530,113cyclictest0-21swapper/422:18:1226
76059915530,100cyclictest0-21swapper/400:15:1826
76059915226,105cyclictest0-21swapper/423:35:1326
76059915126,90cyclictest0-21swapper/421:35:1326
76059915125,125cyclictest0-21swapper/423:15:2426
7652991509,103cyclictest0-21swapper/1300:32:455
7652991509,103cyclictest0-21swapper/1300:32:445
76059915025,86cyclictest0-21swapper/422:15:0026
76059914923,125cyclictest0-21swapper/422:27:1126
76059914922,103cyclictest0-21swapper/419:25:2226
77469914832,111cyclictest0-21swapper/2523:45:2218
77469914831,116cyclictest0-21swapper/2500:34:3318
77469914831,116cyclictest0-21swapper/2500:34:3218
77469914828,118cyclictest0-21swapper/2500:06:4618
76399914810,118cyclictest0-21swapper/1119:40:153
76059914822,97cyclictest0-21swapper/420:09:5226
7652991469,93cyclictest0-21swapper/1322:20:135
7639991469,82cyclictest0-21swapper/1121:35:163
75799914626,57cyclictest0-21swapper/021:15:230
75799914624,121cyclictest0-21swapper/020:00:000
76249914513,93cyclictest0-21swapper/800:34:5130
76249914513,93cyclictest0-21swapper/800:34:5030
7624991440,88cyclictest0-21swapper/823:30:2730
76059914420,108cyclictest0-21swapper/419:45:2226
76059914419,113cyclictest0-21swapper/421:25:2126
76059914411,112cyclictest0-21swapper/400:21:1026
7639991439,97cyclictest0-21swapper/1123:39:213
76249914314,104cyclictest0-21swapper/800:09:4930
75799914356,68cyclictest0-21swapper/023:22:150
7639991429,98cyclictest0-21swapper/1100:04:433
76249914213,100cyclictest0-21swapper/821:10:1230
76059914221,88cyclictest0-21swapper/422:45:5426
77239914133,107cyclictest0-21swapper/2222:34:1515
76059914116,105cyclictest0-21swapper/419:41:2226
76649914046,58cyclictest0-21swapper/1419:30:176
7652991409,83cyclictest0-21swapper/1323:21:405
7687991398,66cyclictest1171rcuc/1722:57:079
76249913913,91cyclictest0-21swapper/820:20:1330
76649913850,54cyclictest0-21swapper/1400:36:316
76529913754,56cyclictest0-21swapper/1323:48:565
7652991370,83cyclictest0-21swapper/1323:25:575
75799913727,63cyclictest0-21swapper/022:15:140
767399136132,1cyclictest0-21swapper/1500:31:427
767399136132,1cyclictest0-21swapper/1500:31:417
76649913630,71cyclictest0-21swapper/1420:45:246
75799913656,64cyclictest0-21swapper/019:20:140
75799913653,64cyclictest0-21swapper/021:55:110
75799913628,68cyclictest0-21swapper/022:48:210
75799913628,64cyclictest0-21swapper/022:30:110
75799913628,64cyclictest0-21swapper/022:02:090
77239913528,76cyclictest0-21swapper/2222:41:4315
77209913515,74cyclictest0-21swapper/2122:06:1714
75799913553,66cyclictest0-21swapper/000:05:020
75799913528,67cyclictest0-21swapper/023:15:190
76649913427,71cyclictest0-21swapper/1400:34:216
76649913427,71cyclictest0-21swapper/1400:34:216
7624991340,92cyclictest0-21swapper/800:11:5830
75799913432,67cyclictest0-21swapper/021:05:130
76999913381,51cyclictest21630-21irqrtprio00:00:1710
76649913331,68cyclictest0-21swapper/1419:25:176
76649913330,75cyclictest0-21swapper/1423:05:066
76649913328,69cyclictest0-21swapper/1422:09:006
76649913328,68cyclictest0-21swapper/1423:15:166
76649913326,68cyclictest0-21swapper/1421:44:256
76529913349,53cyclictest0-21swapper/1300:36:175
76529913329,68cyclictest0-21swapper/1320:08:445
76529913328,69cyclictest0-21swapper/1322:30:225
76399913310,100cyclictest0-21swapper/1120:58:293
75799913355,69cyclictest0-21swapper/022:37:250
75799913330,68cyclictest0-21swapper/022:50:140
77239913283,48cyclictest149-21ksoftirqd/2221:22:3715
77239913252,57cyclictest0-21swapper/2223:19:4115
76649913228,72cyclictest0-21swapper/1421:51:226
76649913228,66cyclictest0-21swapper/1423:40:236
76529913245,57cyclictest0-21swapper/1300:12:585
76529913226,65cyclictest0-21swapper/1322:28:125
75799913229,63cyclictest0-21swapper/020:30:130
77209913117,72cyclictest0-21swapper/2100:24:4414
77079913135,74cyclictest0-21swapper/1921:53:0211
76649913131,75cyclictest0-21swapper/1421:29:266
76649913129,67cyclictest0-21swapper/1422:45:216
76649913128,66cyclictest0-21swapper/1421:00:346
76529913149,53cyclictest0-21swapper/1322:00:265
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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