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2025-12-08 - 10:17
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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 Mon Dec 08, 2025 00:50:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482912920,284ptp4l0-21swapper/119:06:161
210412185176,7sleep170-21swapper/1719:05:029
272239916132,79cyclictest0-21swapper/2922:39:4522
272239915827,130cyclictest0-21swapper/2921:12:3922
272239915636,73cyclictest0-21swapper/2922:17:2022
272239915527,80cyclictest0-21swapper/2920:45:2522
272239915525,95cyclictest0-21swapper/2922:58:3222
271669915520,99cyclictest151rcu_preempt00:26:5113
271669915438,80cyclictest137-21ksoftirqd/2023:39:4913
272239915329,77cyclictest0-21swapper/2922:29:5222
271459915031,84cyclictest0-21swapper/1722:24:359
271459914729,17cyclictest0-21swapper/1719:30:259
271459914729,17cyclictest0-21swapper/1719:30:249
271459914529,85cyclictest0-21swapper/1721:29:029
27158991440,86cyclictest0-21swapper/1921:00:1111
272239914324,79cyclictest0-21swapper/2921:31:4022
27158991420,85cyclictest0-21swapper/1921:11:2611
27158991410,84cyclictest0-21swapper/1923:15:5311
27166991400,86cyclictest0-21swapper/2023:45:4113
271099914019,88cyclictest151rcu_preempt23:08:524
27103991405,106cyclictest0-21swapper/1100:14:093
271169913833,77cyclictest94-21ksoftirqd/1300:01:005
271039913816,88cyclictest0-21swapper/1120:08:203
271039913816,88cyclictest0-21swapper/1120:08:193
271589913626,69cyclictest0-21swapper/1922:55:3711
271589913611,71cyclictest0-21swapper/1921:32:3211
270869913623,55cyclictest0-21swapper/821:28:2330
271099913532,102cyclictest88-21ksoftirqd/1222:44:414
27109991350,74cyclictest0-21swapper/1223:50:224
272239913426,70cyclictest0-21swapper/2900:33:5122
27158991340,79cyclictest0-21swapper/1921:50:2511
271589913327,71cyclictest0-21swapper/1923:55:3011
271269913349,60cyclictest0-21swapper/1519:25:017
271269913349,60cyclictest0-21swapper/1519:25:017
271589913231,69cyclictest0-21swapper/1920:28:3811
271589913231,69cyclictest0-21swapper/1920:28:3711
271589913228,67cyclictest0-21swapper/1923:08:5711
271589913226,70cyclictest0-21swapper/1921:16:4611
27158991320,80cyclictest0-21swapper/1919:43:1611
27158991320,80cyclictest0-21swapper/1919:43:1611
27158991320,78cyclictest0-21swapper/1919:23:2711
27158991320,78cyclictest0-21swapper/1919:23:2611
271459913234,97cyclictest0-21swapper/1721:50:569
271269913248,55cyclictest0-21swapper/1521:49:187
271269913227,67cyclictest0-21swapper/1522:45:577
271669913132,61cyclictest0-21swapper/2022:25:0113
271669913131,94cyclictest0-21swapper/2023:18:4013
271589913130,70cyclictest0-21swapper/1920:47:2311
271589913127,68cyclictest0-21swapper/1922:05:0511
271589913124,63cyclictest0-21swapper/1922:46:3211
27158991310,81cyclictest0-21swapper/1921:26:1911
271459913132,48cyclictest0-21swapper/1700:10:569
270869913139,57cyclictest0-21swapper/800:01:1330
270869913125,61cyclictest0-21swapper/820:21:2130
270869913125,61cyclictest0-21swapper/820:21:2030
271589913062,67cyclictest0-21swapper/1920:35:3711
271589913062,67cyclictest0-21swapper/1920:35:3711
271589913031,72cyclictest0-21swapper/1919:55:1611
271589913031,72cyclictest0-21swapper/1919:55:1511
271589913025,63cyclictest0-21swapper/1920:52:1111
271269913030,71cyclictest0-21swapper/1521:14:167
271269913029,71cyclictest0-21swapper/1520:40:307
271269913029,71cyclictest0-21swapper/1520:40:297
271269913028,66cyclictest0-21swapper/1522:27:297
270869913049,59cyclictest0-21swapper/820:29:0430
270869913049,59cyclictest0-21swapper/820:29:0330
27223991290,85cyclictest0-21swapper/2920:52:5322
27158991290,80cyclictest0-21swapper/1923:49:0511
271269912948,64cyclictest0-21swapper/1521:35:257
271269912929,66cyclictest0-21swapper/1500:20:177
271269912926,67cyclictest0-21swapper/1523:41:327
271269912926,67cyclictest0-21swapper/1523:15:217
270869912947,54cyclictest0-21swapper/823:45:1030
270869912932,65cyclictest0-21swapper/821:58:0030
270869912927,62cyclictest0-21swapper/819:40:4530
270869912927,62cyclictest0-21swapper/819:40:4430
270869912926,63cyclictest0-21swapper/820:45:2430
271589912829,78cyclictest0-21swapper/1923:12:1111
27158991282,79cyclictest0-21swapper/1900:26:5711
271589912827,64cyclictest0-21swapper/1919:45:2311
271589912827,64cyclictest0-21swapper/1919:45:2211
271589912826,64cyclictest0-21swapper/1922:30:5911
271589912821,69cyclictest0-21swapper/1900:30:4611
271269912848,52cyclictest0-21swapper/1520:25:257
271269912848,52cyclictest0-21swapper/1520:25:247
271269912837,61cyclictest0-21swapper/1520:35:027
271269912837,61cyclictest0-21swapper/1520:35:027
271269912828,66cyclictest0-21swapper/1522:20:177
271269912827,67cyclictest0-21swapper/1522:30:277
271269912826,68cyclictest0-21swapper/1522:38:277
270869912841,58cyclictest0-21swapper/819:45:1530
270869912841,58cyclictest0-21swapper/819:45:1430
270869912830,66cyclictest0-21swapper/822:25:2030
270869912828,72cyclictest0-21swapper/821:20:5930
270869912824,68cyclictest0-21swapper/823:10:1230
271819912723,88cyclictest0-21swapper/2221:33:2215
271819912722,81cyclictest0-21swapper/2223:00:1515
271819912722,104cyclictest0-21swapper/2200:16:2315
271819912721,86cyclictest0-21swapper/2222:16:0815
271669912750,51cyclictest0-21swapper/2022:30:2013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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