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2026-09-20 - 21:46
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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 Sun Sep 20, 2026 12:48:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912420,233ptp4l0-21swapper/107:05:431
3273912420,233ptp4l0-21swapper/107:05:421
260692234226,6sleep40-21swapper/407:05:5226
260692234226,6sleep40-21swapper/407:05:5126
27622991750,64cyclictest0-21swapper/1609:15:278
27530991743,148cyclictest0-21swapper/210:00:4812
275809916520,110cyclictest0-21swapper/907:50:2031
275809916223,116cyclictest0-21swapper/910:02:3331
276139916013,146cyclictest0-21swapper/1410:44:186
275809916023,136cyclictest0-21swapper/908:10:1831
2762999155112,42cyclictest125-21ksoftirqd/1811:58:0910
275809915023,84cyclictest0-21swapper/911:32:1931
27530991463,105cyclictest0-21swapper/210:16:0312
275309914611,132cyclictest151rcu_preempt11:55:4312
27622991430,85cyclictest0-21swapper/1612:08:348
27622991430,83cyclictest0-21swapper/1611:56:188
27622991420,84cyclictest0-21swapper/1610:35:148
27622991417,133cyclictest0-21swapper/1611:54:108
27622991410,85cyclictest0-21swapper/1612:25:138
276089914150,58cyclictest0-21swapper/1309:00:255
276459914018,90cyclictest0-21swapper/2209:40:2015
276229914038,100cyclictest0-21swapper/1609:57:488
27622991402,60cyclictest0-21swapper/1610:15:518
27622991400,84cyclictest0-21swapper/1607:20:008
276089914045,32cyclictest0-21swapper/1312:25:195
27524991400,84cyclictest0-21swapper/109:40:301
276459913921,84cyclictest0-21swapper/2212:00:5215
27622991390,86cyclictest0-21swapper/1610:00:208
27622991390,83cyclictest0-21swapper/1607:34:378
276739913830,35cyclictest0-21swapper/2811:21:1421
276739913830,35cyclictest0-21swapper/2811:21:1421
276229913848,56cyclictest0-21swapper/1609:42:238
276229913843,58cyclictest0-21swapper/1611:10:008
276229913843,58cyclictest0-21swapper/1611:09:598
27622991380,83cyclictest0-21swapper/1608:20:048
27622991380,81cyclictest0-21swapper/1610:05:118
27608991380,82cyclictest0-21swapper/1310:04:125
276739913728,22cyclictest0-21swapper/2807:30:3721
276229913727,67cyclictest0-21swapper/1610:57:228
276229913727,67cyclictest0-21swapper/1610:57:218
27622991370,82cyclictest0-21swapper/1609:30:238
276739913619,44cyclictest0-21swapper/2809:09:4521
276459913621,77cyclictest0-21swapper/2209:47:4815
276229913628,70cyclictest0-21swapper/1612:23:148
276229913626,66cyclictest0-21swapper/1611:16:178
276229913626,66cyclictest0-21swapper/1611:16:168
276229913620,89cyclictest0-21swapper/1610:12:378
27622991360,81cyclictest0-21swapper/1609:20:148
27622991360,81cyclictest0-21swapper/1607:25:008
276089913631,68cyclictest0-21swapper/1308:09:195
275809913651,52cyclictest0-21swapper/912:05:2831
276229913553,60cyclictest0-21swapper/1608:18:158
276419913437,60cyclictest0-21swapper/2110:50:1914
276419913437,60cyclictest0-21swapper/2110:50:1814
276229913443,61cyclictest0-21swapper/1610:31:088
276229913430,69cyclictest0-21swapper/1609:50:208
276229913430,68cyclictest0-21swapper/1612:39:428
276229913429,61cyclictest0-21swapper/1607:10:238
276229913427,69cyclictest0-21swapper/1609:00:008
276229913421,68cyclictest0-21swapper/1612:16:478
276229913420,68cyclictest0-21swapper/1610:45:148
276229913420,68cyclictest0-21swapper/1610:45:148
276229913414,75cyclictest0-21swapper/1611:45:128
27622991340,82cyclictest0-21swapper/1611:10:318
27622991340,82cyclictest0-21swapper/1611:10:318
27608991343,77cyclictest0-21swapper/1310:21:195
275959913453,56cyclictest0-21swapper/1111:55:533
276739913325,80cyclictest0-21swapper/2810:44:2121
276649913336,44cyclictest0-21swapper/2608:46:2419
276419913336,86cyclictest0-21swapper/2107:38:2214
276229913329,69cyclictest0-21swapper/1609:47:238
276229913328,69cyclictest0-21swapper/1611:03:008
276229913328,69cyclictest0-21swapper/1611:03:008
27608991332,75cyclictest0-21swapper/1311:56:585
27530991333,98cyclictest0-21swapper/209:05:0112
330891132124,6phc2sys0-21swapper/207:06:2012
330891132124,6phc2sys0-21swapper/207:06:2012
276229913228,69cyclictest0-21swapper/1609:05:248
276229913226,66cyclictest0-21swapper/1610:20:118
27608991323,77cyclictest0-21swapper/1310:50:115
27608991323,77cyclictest0-21swapper/1310:50:105
276089913230,63cyclictest0-21swapper/1310:10:225
27530991323,86cyclictest0-21swapper/211:04:2512
27530991323,86cyclictest0-21swapper/211:04:2512
27530991323,128cyclictest0-21swapper/209:31:0812
276739913121,109cyclictest0-21swapper/2809:39:4121
276419913129,101cyclictest0-21swapper/2111:28:1114
276419913129,101cyclictest0-21swapper/2111:28:1114
276229913130,69cyclictest0-21swapper/1612:01:478
276229913128,69cyclictest0-21swapper/1608:53:438
276229913122,73cyclictest0-21swapper/1610:53:518
276229913122,73cyclictest0-21swapper/1610:53:518
276229913116,73cyclictest0-21swapper/1611:26:328
276229913116,73cyclictest0-21swapper/1611:26:318
27608991313,75cyclictest0-21swapper/1310:33:375
276089913128,60cyclictest0-21swapper/1311:15:185
276089913128,60cyclictest0-21swapper/1311:15:175
275809913118,87cyclictest0-21swapper/911:28:0431
275809913118,87cyclictest0-21swapper/911:28:0331
276229913036,66cyclictest0-21swapper/1612:12:528
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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