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2026-07-09 - 12:51
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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 Jul 09, 2026 00:50:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912550,247ptp4l0-21swapper/119:08:021
65209922814,174cyclictest0-21swapper/722:39:2029
65209918514,137cyclictest0-21swapper/700:23:3229
65829918320,144cyclictest0-21swapper/1900:16:3811
65829918320,142cyclictest0-21swapper/1920:35:2311
65599918035,126cyclictest0-21swapper/1322:54:465
65209918014,118cyclictest0-21swapper/721:21:4029
66369917920,90cyclictest0-21swapper/2819:25:1921
66369917920,90cyclictest0-21swapper/2819:25:1821
65599917935,138cyclictest0-21swapper/1320:35:125
65209917614,110cyclictest0-21swapper/721:10:1529
65599917431,97cyclictest0-21swapper/1322:00:155
65599917331,141cyclictest0-21swapper/1322:44:375
65599916330,84cyclictest0-21swapper/1322:25:235
65829915621,91cyclictest0-21swapper/1923:52:0011
65829915621,91cyclictest0-21swapper/1923:52:0011
65599915315,137cyclictest151rcu_preempt22:18:255
6477991510,86cyclictest0-21swapper/100:31:511
65209915014,126cyclictest0-21swapper/723:02:4129
65829914818,97cyclictest0-21swapper/1922:20:3711
6559991480,89cyclictest0-21swapper/1320:53:275
65599914618,101cyclictest0-21swapper/1300:22:205
65829914520,76cyclictest0-21swapper/1921:47:0011
65599914524,81cyclictest0-21swapper/1323:18:495
65599914426,77cyclictest0-21swapper/1322:10:145
6559991430,87cyclictest0-21swapper/1321:12:085
66679914024,73cyclictest0-21swapper/3121:25:1525
65829914054,58cyclictest0-21swapper/1923:41:5511
65829914054,58cyclictest0-21swapper/1923:41:5511
6654991380,84cyclictest0-21swapper/3023:16:2524
65599913843,64cyclictest0-21swapper/1300:30:275
6529991370,86cyclictest0-21swapper/923:35:2031
6529991370,86cyclictest0-21swapper/923:35:2031
64739913749,57cyclictest0-21swapper/000:00:060
64739913749,57cyclictest0-21swapper/000:00:060
64739913728,64cyclictest0-21swapper/023:21:040
65829913625,80cyclictest0-21swapper/1921:59:3411
65209913619,93cyclictest5095-21runrttasks20:23:0229
65209913619,93cyclictest5095-21runrttasks20:23:0129
65209913614,89cyclictest0-21swapper/723:33:5929
65209913614,89cyclictest0-21swapper/723:33:5829
64739913640,65cyclictest0-21swapper/022:07:030
65829913527,65cyclictest0-21swapper/1922:38:5011
6559991350,82cyclictest0-21swapper/1323:46:535
6559991350,82cyclictest0-21swapper/1323:46:525
64739913527,64cyclictest0-21swapper/000:21:350
65829913448,59cyclictest0-21swapper/1920:20:2511
65829913448,59cyclictest0-21swapper/1920:20:2411
65829913446,70cyclictest0-21swapper/1923:29:3711
65829913427,64cyclictest0-21swapper/1922:46:2011
65829913420,67cyclictest0-21swapper/1923:47:1511
65829913420,67cyclictest0-21swapper/1923:47:1511
65599913424,71cyclictest0-21swapper/1323:41:175
65599913424,71cyclictest0-21swapper/1323:41:175
65599913421,86cyclictest0-21swapper/1321:19:565
64739913437,61cyclictest0-21swapper/021:13:190
64739913430,65cyclictest0-21swapper/022:12:530
64739913428,63cyclictest0-21swapper/021:50:460
65829913320,112cyclictest0-21swapper/1921:52:2011
65599913334,69cyclictest0-21swapper/1323:26:515
65599913317,88cyclictest0-21swapper/1323:04:235
65209913327,72cyclictest0-21swapper/700:03:5229
65209913327,72cyclictest0-21swapper/700:03:5129
6520991331,92cyclictest0-21swapper/700:30:5329
64739913330,70cyclictest0-21swapper/000:38:350
64739913328,72cyclictest0-21swapper/023:28:500
64739913326,64cyclictest0-21swapper/020:10:170
64739913326,64cyclictest0-21swapper/020:10:170
64739913325,65cyclictest0-21swapper/019:15:150
64739913325,65cyclictest0-21swapper/019:15:150
65829913237,64cyclictest0-21swapper/1919:25:2211
65829913237,64cyclictest0-21swapper/1919:25:2111
65829913231,68cyclictest0-21swapper/1922:27:5211
65829913226,71cyclictest0-21swapper/1923:58:2911
65829913226,71cyclictest0-21swapper/1923:58:2911
65829913224,66cyclictest0-21swapper/1922:11:0311
65829913220,68cyclictest0-21swapper/1922:08:2111
65599913249,56cyclictest0-21swapper/1300:27:155
65599913248,57cyclictest0-21swapper/1320:02:095
65599913248,57cyclictest0-21swapper/1320:02:085
65209913227,69cyclictest0-21swapper/723:24:1829
65209913226,63cyclictest0-21swapper/721:18:2829
65209913214,58cyclictest0-21swapper/723:00:0029
64739913248,56cyclictest0-21swapper/019:37:370
64739913248,56cyclictest0-21swapper/019:37:360
64739913229,66cyclictest0-21swapper/021:59:010
64739913229,65cyclictest0-21swapper/000:19:520
64739913228,68cyclictest0-21swapper/021:29:500
64739913227,71cyclictest0-21swapper/023:18:540
64739913226,72cyclictest0-21swapper/023:57:260
64739913226,72cyclictest0-21swapper/023:57:250
64739913226,67cyclictest0-21swapper/022:40:270
64739913225,73cyclictest0-21swapper/022:19:200
66549913148,54cyclictest0-21swapper/3000:11:4724
66549913144,52cyclictest0-21swapper/3023:55:5924
66549913144,52cyclictest0-21swapper/3023:55:5824
66549913135,71cyclictest0-21swapper/3021:21:2924
65829913128,70cyclictest0-21swapper/1900:12:5411
65829913127,69cyclictest0-21swapper/1923:01:0011
65829913127,69cyclictest0-21swapper/1922:16:5611
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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