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2025-11-27 - 11:08
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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 Thu Nov 27, 2025 00:49:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482913120,304ptp4l0-21swapper/119:08:151
123472308298,7sleep310-21swapper/3119:05:2225
145919929497,2cyclictest151rcu_preempt22:37:350
145919929497,2cyclictest151rcu_preempt22:37:350
14607991874,141cyclictest0-21swapper/321:11:4623
14607991874,137cyclictest0-21swapper/323:21:0723
14691991842,174cyclictest0-21swapper/2020:40:0113
14691991832,132cyclictest0-21swapper/2000:25:2613
14691991802,128cyclictest0-21swapper/2022:30:5813
14691991802,128cyclictest0-21swapper/2022:30:5713
147219917399,52cyclictest0-21swapper/2723:56:3620
147269916431,131cyclictest0-21swapper/2823:45:2321
147269916027,132cyclictest0-21swapper/2800:22:1621
146219916027,100cyclictest0-21swapper/523:10:1527
146219916025,134cyclictest0-21swapper/522:20:3027
146219916025,134cyclictest0-21swapper/522:20:2927
14607991603,115cyclictest0-21swapper/321:55:3623
14607991603,115cyclictest0-21swapper/321:55:3523
146219915926,87cyclictest0-21swapper/500:22:0427
146219915726,77cyclictest0-21swapper/500:15:3827
146219915626,91cyclictest0-21swapper/519:38:3027
146359915532,116cyclictest0-21swapper/722:05:1829
146359915532,116cyclictest0-21swapper/722:05:1829
146219915524,94cyclictest0-21swapper/521:28:5527
146219915524,94cyclictest0-21swapper/521:28:5527
146219915324,85cyclictest0-21swapper/522:18:0527
146219915324,85cyclictest0-21swapper/522:18:0527
1463599151150,0cyclictest58-21ksoftirqd/723:12:3729
147269915029,70cyclictest0-21swapper/2823:05:0121
147269915029,70cyclictest0-21swapper/2823:05:0121
147269914824,77cyclictest0-21swapper/2822:49:3121
147269914824,77cyclictest0-21swapper/2822:49:3121
14626991450,83cyclictest0-21swapper/623:37:5828
146219914519,118cyclictest0-21swapper/520:43:4127
14595991450,85cyclictest0-21swapper/123:05:031
14595991450,85cyclictest0-21swapper/123:05:021
14626991440,87cyclictest0-21swapper/600:24:1328
14626991440,86cyclictest0-21swapper/623:15:1728
14626991440,82cyclictest0-21swapper/623:54:1728
14691991432,97cyclictest0-21swapper/2021:26:1513
14691991432,97cyclictest0-21swapper/2021:26:1513
14691991432,118cyclictest0-21swapper/2020:15:1413
146359914330,98cyclictest0-21swapper/700:06:0429
146359914329,98cyclictest0-21swapper/722:19:4329
146359914329,98cyclictest0-21swapper/722:19:4229
14626991430,83cyclictest0-21swapper/623:00:1928
14626991430,83cyclictest0-21swapper/623:00:1928
14626991430,83cyclictest0-21swapper/622:17:3428
14626991430,83cyclictest0-21swapper/622:17:3428
14626991420,83cyclictest0-21swapper/621:35:2128
14626991420,82cyclictest0-21swapper/622:08:2928
14626991420,82cyclictest0-21swapper/622:08:2828
146219914027,72cyclictest0-21swapper/523:09:0227
146219914027,72cyclictest0-21swapper/523:09:0227
14595991400,92cyclictest0-21swapper/119:52:411
147269913931,50cyclictest0-21swapper/2821:30:1021
147269913931,50cyclictest0-21swapper/2821:30:0921
146219913926,62cyclictest0-21swapper/523:47:2027
14626991370,83cyclictest0-21swapper/623:12:1528
14626991370,82cyclictest0-21swapper/621:16:3928
14626991370,81cyclictest0-21swapper/619:30:1228
14626991370,81cyclictest0-21swapper/600:31:1028
14626991370,80cyclictest0-21swapper/622:04:2928
146079913749,58cyclictest0-21swapper/300:34:5223
146079913730,70cyclictest0-21swapper/319:40:5723
14626991360,82cyclictest0-21swapper/600:35:5928
14626991360,76cyclictest0-21swapper/623:25:2628
14626991360,75cyclictest0-21swapper/622:47:3028
14626991360,75cyclictest0-21swapper/622:47:2928
146219913626,70cyclictest0-21swapper/523:44:4027
146079913630,63cyclictest0-21swapper/323:10:2623
147269913531,81cyclictest0-21swapper/2819:11:1521
146919913528,69cyclictest0-21swapper/2021:30:0213
146919913528,69cyclictest0-21swapper/2021:30:0113
14607991354,83cyclictest0-21swapper/322:15:5523
14607991354,83cyclictest0-21swapper/322:15:5523
146079913530,71cyclictest0-21swapper/320:19:3923
147269913419,86cyclictest0-21swapper/2823:54:4321
146919913449,58cyclictest0-21swapper/2000:06:3713
14626991340,80cyclictest0-21swapper/621:12:5428
146079913430,71cyclictest0-21swapper/320:05:4523
146079913429,74cyclictest0-21swapper/323:55:1923
146079913427,64cyclictest0-21swapper/323:06:0923
146079913427,64cyclictest0-21swapper/323:06:0823
146079913426,70cyclictest0-21swapper/323:51:4823
146919913330,69cyclictest0-21swapper/2021:35:2213
14691991332,79cyclictest0-21swapper/2021:45:3213
14691991332,79cyclictest0-21swapper/2021:45:3213
146919913327,70cyclictest0-21swapper/2021:43:5613
146919913323,64cyclictest0-21swapper/2020:10:2613
14626991330,79cyclictest0-21swapper/620:55:1628
146079913330,76cyclictest0-21swapper/321:16:3623
146079913327,67cyclictest0-21swapper/321:25:0823
146079913327,67cyclictest0-21swapper/321:25:0823
146079913326,72cyclictest0-21swapper/322:08:2623
146079913326,72cyclictest0-21swapper/322:08:2623
146919913250,59cyclictest0-21swapper/2023:14:1913
146919913227,67cyclictest0-21swapper/2020:24:4913
146269913226,62cyclictest0-21swapper/623:05:4028
146269913226,62cyclictest0-21swapper/623:05:4028
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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