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2026-04-30 - 16:34
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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
Characteristics of the 100 highest latencies:
System rackcslot6.osadl.org (updated Thu Apr 30, 2026 12:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169246899381379,1cyclictest1775378-21kworker/7:009:46:027
1692468993810,380cyclictest0-21swapper/708:22:027
1692468993810,380cyclictest0-21swapper/708:11:027
1692468993810,380cyclictest0-21swapper/708:00:027
169246899380379,1cyclictest1797688-21kworker/7:311:48:037
169246899380379,1cyclictest1797688-21kworker/7:311:37:027
169246899380379,1cyclictest1797688-21kworker/7:310:11:027
169246899380379,1cyclictest1775378-21kworker/7:010:00:027
169246899380379,1cyclictest1775378-21kworker/7:009:32:027
169246899380379,1cyclictest1691547-21kworker/7:007:56:027
169246899380379,1cyclictest1691547-21kworker/7:007:36:027
169246899380379,1cyclictest1691547-21kworker/7:007:33:027
169246899380379,1cyclictest1691547-21kworker/7:007:26:037
169246899380378,1cyclictest1747201-21kworker/7:109:08:027
1692468993800,379cyclictest0-21swapper/712:16:037
1692468993800,379cyclictest0-21swapper/708:41:027
1692468993800,379cyclictest0-21swapper/707:44:027
1692468993800,379cyclictest0-21swapper/707:44:027
1692468993800,1cyclictest0-21swapper/708:38:027
169246899379378,1cyclictest1853542-21kworker/7:112:03:037
169246899379378,1cyclictest1797688-21kworker/7:310:39:027
169246899379378,1cyclictest1797688-21kworker/7:310:27:027
169246899379378,1cyclictest1797688-21kworker/7:310:16:027
169246899379378,1cyclictest1797688-21kworker/7:310:09:037
169246899379378,1cyclictest1775378-21kworker/7:009:52:027
169246899379378,1cyclictest1738037-21kworker/7:208:34:027
169246899379378,1cyclictest1691547-21kworker/7:008:17:027
169246899379378,1cyclictest1691547-21kworker/7:007:18:027
169246899379378,1cyclictest0-21swapper/709:28:027
169246899379377,1cyclictest1747201-21kworker/7:109:18:027
169246899378377,1cyclictest1797688-21kworker/7:311:57:037
169246899378377,1cyclictest1797688-21kworker/7:311:26:037
169246899378377,1cyclictest1797688-21kworker/7:310:32:027
169246899378377,1cyclictest1747201-21kworker/7:109:13:037
169246899378377,1cyclictest1747201-21kworker/7:109:13:027
169246899378377,1cyclictest1747201-21kworker/7:108:52:027
169246899378377,1cyclictest0-21swapper/709:21:027
169246899377376,1cyclictest1797688-21kworker/7:311:14:037
169246899377376,1cyclictest1691547-21kworker/7:007:51:027
169246899377376,1cyclictest0-21swapper/711:31:027
169246899377376,1cyclictest0-21swapper/709:44:027
169246899377376,1cyclictest0-21swapper/709:36:027
169244699349347,1cyclictest0-21swapper/407:15:034
169244699346345,1cyclictest0-21swapper/411:45:034
169244699343342,1cyclictest1950440-21kworker/4:007:20:034
169244699343342,1cyclictest0-21swapper/408:55:034
169244699341340,1cyclictest0-21swapper/410:06:024
169244699339338,1cyclictest0-21swapper/411:50:024
169244699338336,1cyclictest0-21swapper/411:20:024
169244699336335,1cyclictest0-21swapper/411:00:034
169244699336335,1cyclictest0-21swapper/409:01:034
169244699336334,1cyclictest1950440-21kworker/4:007:25:034
169244699334333,1cyclictest1828946-21kworker/4:010:55:034
169244699334333,1cyclictest1793427-21kworker/4:110:35:024
169244699333332,1cyclictest1793427-21kworker/4:110:15:024
169244699333332,1cyclictest1766362-21kworker/4:009:20:024
169244699333331,1cyclictest1828946-21kworker/4:012:20:024
169244699333331,1cyclictest0-21swapper/411:32:024
169244699333331,1cyclictest0-21swapper/408:14:024
169244699332331,1cyclictest1950440-21kworker/4:008:35:024
169244699332331,1cyclictest1828946-21kworker/4:012:30:034
169244699332331,1cyclictest1828946-21kworker/4:012:15:024
169244699332331,1cyclictest1828946-21kworker/4:011:25:024
169244699332331,1cyclictest1723343-21kworker/4:208:45:034
169244699332331,1cyclictest0-21swapper/408:28:034
169244699332330,1cyclictest1950440-21kworker/4:007:10:024
169244699332330,1cyclictest1828946-21kworker/4:011:41:024
169244699332330,1cyclictest0-21swapper/411:18:024
169244699332330,1cyclictest0-21swapper/411:09:034
169244699332330,1cyclictest0-21swapper/410:03:034
169244699331330,1cyclictest1828946-21kworker/4:012:05:024
169244699331330,1cyclictest1793427-21kworker/4:110:20:024
169244699331330,1cyclictest1723343-21kworker/4:209:17:024
169244699331330,1cyclictest0-21swapper/412:04:024
169244699331330,1cyclictest0-21swapper/410:28:034
169244699331330,1cyclictest0-21swapper/408:54:024
169244699331329,1cyclictest0-21swapper/410:47:024
169244699330329,1cyclictest1828946-21kworker/4:012:37:024
169244699330329,1cyclictest1766362-21kworker/4:009:49:024
169244699330329,1cyclictest1766362-21kworker/4:009:37:024
169244699330329,1cyclictest0-21swapper/410:12:024
169244699330329,1cyclictest0-21swapper/408:21:034
169244699330329,1cyclictest0-21swapper/407:59:024
169244699329328,1cyclictest1950440-21kworker/4:008:02:024
169244699329328,1cyclictest0-21swapper/411:13:024
169244699328327,1cyclictest1950440-21kworker/4:007:42:024
169244699328327,1cyclictest1950440-21kworker/4:007:42:024
169244699328327,1cyclictest1828946-21kworker/4:012:28:024
169244699328327,1cyclictest1828946-21kworker/4:011:38:024
169244699328327,1cyclictest1793427-21kworker/4:110:43:024
169244699328327,1cyclictest1793427-21kworker/4:110:31:024
169244699328327,1cyclictest1766362-21kworker/4:009:57:024
169244699328327,1cyclictest1723343-21kworker/4:209:09:034
169244699328326,1cyclictest1828946-21kworker/4:010:54:024
169244699327326,1cyclictest1828946-21kworker/4:012:14:024
169244699327326,1cyclictest1828946-21kworker/4:011:56:024
169244699327326,1cyclictest1766362-21kworker/4:009:34:024
169243899322320,1cyclictest0-21swapper/309:31:033
169242499321320,1cyclictest1798560-21kworker/1:310:40:021
169242499321320,1cyclictest1672408-21kworker/1:208:05:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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