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2026-04-07 - 13:24
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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 Tue Apr 07, 2026 00:49:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
150162304296,6sleep100-21swapper/1019:06:412
165149922427,134cyclictest0-21swapper/1822:14:3810
165149922427,134cyclictest0-21swapper/1822:14:3810
3273911800,172ptp4l0-21swapper/119:05:191
165149918010,142cyclictest0-21swapper/1821:19:2510
165419917126,97cyclictest0-21swapper/2521:45:5518
165419917126,144cyclictest0-21swapper/2521:12:1418
165179917052,117cyclictest131-21ksoftirqd/1900:20:1511
165179916717,97cyclictest0-21swapper/1921:22:4711
165419916427,84cyclictest0-21swapper/2500:15:2418
165149916333,78cyclictest0-21swapper/1822:49:2310
165149916333,78cyclictest0-21swapper/1822:49:2310
16567991609,122cyclictest0-21swapper/3121:18:4425
16567991609,122cyclictest0-21swapper/3100:33:1725
16567991599,99cyclictest0-21swapper/3120:05:0025
165419915927,71cyclictest0-21swapper/2500:25:1118
165419915827,95cyclictest0-21swapper/2523:26:2218
165419915827,95cyclictest0-21swapper/2523:26:2218
165179915734,122cyclictest131-21ksoftirqd/1923:40:0711
165179915517,102cyclictest0-21swapper/1900:28:1711
16506991556,118cyclictest0-21swapper/1620:50:368
165149915221,97cyclictest0-21swapper/1821:45:1510
16567991510,86cyclictest0-21swapper/3122:45:1925
16567991510,86cyclictest0-21swapper/3122:45:1925
16567991499,139cyclictest0-21swapper/3100:25:1625
164489914952,43cyclictest0-21swapper/723:25:0029
16483991470,85cyclictest0-21swapper/1123:27:133
16483991470,85cyclictest0-21swapper/1123:27:133
165149914631,61cyclictest0-21swapper/1822:51:0210
165149914631,61cyclictest0-21swapper/1822:51:0110
16567991449,97cyclictest0-21swapper/3123:48:5525
16567991449,85cyclictest0-21swapper/3123:56:2425
16522991430,85cyclictest0-21swapper/2000:15:1613
164919914251,57cyclictest0-21swapper/1222:33:344
164919914251,57cyclictest0-21swapper/1222:33:344
164919914145,59cyclictest0-21swapper/1221:15:174
16511991400,87cyclictest0-21swapper/1723:14:469
16511991400,87cyclictest0-21swapper/1723:14:459
164579914029,71cyclictest0-21swapper/823:23:1030
164579914029,71cyclictest0-21swapper/823:23:1030
165119913951,61cyclictest0-21swapper/1722:36:009
165119913951,61cyclictest0-21swapper/1722:36:009
165119913950,59cyclictest0-21swapper/1723:24:289
165119913950,59cyclictest0-21swapper/1723:24:279
16491991390,83cyclictest0-21swapper/1222:20:144
164579913957,29cyclictest0-21swapper/821:22:0930
165119913840,67cyclictest0-21swapper/1720:45:179
165119913827,70cyclictest0-21swapper/1719:15:049
164919913823,67cyclictest0-21swapper/1219:30:174
16541991370,79cyclictest0-21swapper/2519:39:4718
165119913748,53cyclictest0-21swapper/1700:05:099
165119913744,67cyclictest0-21swapper/1721:27:049
165119913741,55cyclictest0-21swapper/1719:36:279
165119913731,62cyclictest0-21swapper/1700:03:079
165119913727,66cyclictest0-21swapper/1719:27:229
16491991370,84cyclictest0-21swapper/1222:45:224
16491991370,84cyclictest0-21swapper/1222:45:214
165179913647,56cyclictest0-21swapper/1922:40:5111
165179913647,56cyclictest0-21swapper/1922:40:5111
165179913640,62cyclictest0-21swapper/1919:13:3011
165119913635,65cyclictest0-21swapper/1700:12:449
165119913628,73cyclictest0-21swapper/1722:55:489
165119913628,73cyclictest0-21swapper/1722:55:479
165119913628,66cyclictest0-21swapper/1720:25:109
165119913627,66cyclictest0-21swapper/1722:43:589
165119913627,66cyclictest0-21swapper/1722:43:589
16511991360,76cyclictest0-21swapper/1700:27:119
164919913648,55cyclictest0-21swapper/1219:56:434
164919913643,61cyclictest0-21swapper/1200:15:124
164919913629,72cyclictest0-21swapper/1220:30:134
164919913629,71cyclictest0-21swapper/1223:19:024
164919913629,71cyclictest0-21swapper/1223:19:014
164919913629,71cyclictest0-21swapper/1219:40:254
164919913627,67cyclictest0-21swapper/1221:36:564
165119913529,73cyclictest0-21swapper/1723:44:259
165119913529,70cyclictest0-21swapper/1721:38:189
165119913529,69cyclictest0-21swapper/1720:44:179
165119913529,66cyclictest0-21swapper/1721:09:579
165119913528,74cyclictest0-21swapper/1723:25:149
165119913528,74cyclictest0-21swapper/1723:25:149
165119913528,71cyclictest0-21swapper/1723:32:269
165119913528,71cyclictest0-21swapper/1723:32:259
165119913528,71cyclictest0-21swapper/1721:42:339
165119913527,71cyclictest0-21swapper/1722:33:219
165119913527,71cyclictest0-21swapper/1722:33:209
165119913526,71cyclictest0-21swapper/1721:51:389
165119913526,71cyclictest0-21swapper/1721:51:389
164919913543,56cyclictest0-21swapper/1223:45:134
164919913528,71cyclictest0-21swapper/1222:02:354
164919913528,68cyclictest0-21swapper/1221:33:094
164919913527,64cyclictest0-21swapper/1222:29:524
164919913527,64cyclictest0-21swapper/1222:29:524
165179913446,53cyclictest0-21swapper/1921:51:4111
165179913446,53cyclictest0-21swapper/1921:51:4111
165179913445,58cyclictest0-21swapper/1922:57:5811
165179913445,58cyclictest0-21swapper/1922:57:5811
165179913426,72cyclictest0-21swapper/1922:07:4111
165119913431,73cyclictest0-21swapper/1722:01:169
165119913430,74cyclictest0-21swapper/1722:24:159
165119913430,72cyclictest0-21swapper/1722:45:369
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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