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2026-08-21 - 01:13
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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 Aug 20, 2026 12:49:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912140,206ptp4l0-21swapper/107:05:561
173399917515,114cyclictest0-21swapper/908:30:1231
173399917515,114cyclictest0-21swapper/908:30:1231
17403991555,148cyclictest0-21swapper/1909:56:0111
17403991545,148cyclictest0-21swapper/1912:35:0111
17403991545,148cyclictest0-21swapper/1912:35:0111
17403991545,145cyclictest0-21swapper/1910:12:1711
17403991545,113cyclictest0-21swapper/1910:04:1711
17403991535,145cyclictest0-21swapper/1910:37:5711
172919915031,16cyclictest0-21swapper/109:48:301
172919914932,108cyclictest0-21swapper/111:11:531
172919914932,106cyclictest0-21swapper/109:19:061
172919914831,115cyclictest0-21swapper/107:18:041
17422991460,86cyclictest0-21swapper/2210:20:2315
172919914529,115cyclictest0-21swapper/110:20:011
330891144136,6phc2sys0-21swapper/207:07:2312
17409991444,87cyclictest0-21swapper/2008:45:0213
17409991444,87cyclictest0-21swapper/2008:45:0213
172919914230,95cyclictest0-21swapper/111:45:011
173399914152,62cyclictest0-21swapper/910:38:2131
173399914115,81cyclictest0-21swapper/910:56:3031
172919914132,64cyclictest0-21swapper/110:56:551
17422991400,83cyclictest0-21swapper/2209:48:1915
172919914023,88cyclictest0-21swapper/110:16:331
172919914023,116cyclictest0-21swapper/109:30:201
17403991391,79cyclictest0-21swapper/1911:26:3711
17339991390,85cyclictest0-21swapper/907:15:0131
174229913819,67cyclictest0-21swapper/2212:23:5115
17385991380,86cyclictest0-21swapper/1612:05:228
173399913855,59cyclictest0-21swapper/911:03:3531
173399913852,65cyclictest0-21swapper/910:04:2431
17403991375,71cyclictest0-21swapper/1912:25:2411
17403991375,71cyclictest0-21swapper/1912:25:2411
173399913751,61cyclictest0-21swapper/909:35:1731
172919913720,84cyclictest0-21swapper/109:25:311
174229913651,53cyclictest0-21swapper/2210:46:3515
17403991365,77cyclictest0-21swapper/1912:11:3011
173399913637,61cyclictest0-21swapper/908:05:3031
173399913637,61cyclictest0-21swapper/908:05:2931
17428991350,89cyclictest0-21swapper/2308:25:1416
17428991350,89cyclictest0-21swapper/2308:25:1416
173399913555,60cyclictest0-21swapper/909:27:4831
173399913550,56cyclictest0-21swapper/912:17:1331
173399913547,59cyclictest0-21swapper/907:55:2131
173399913547,59cyclictest0-21swapper/907:55:2131
17335991350,84cyclictest0-21swapper/807:30:0030
17291991350,87cyclictest0-21swapper/112:26:421
17291991350,87cyclictest0-21swapper/112:26:411
17291991350,87cyclictest0-21swapper/107:45:361
17291991350,87cyclictest0-21swapper/107:45:361
173399913446,60cyclictest0-21swapper/911:56:2231
173399913430,70cyclictest0-21swapper/909:24:0331
173399913428,68cyclictest0-21swapper/910:09:2831
173399913427,70cyclictest0-21swapper/912:00:2531
173399913427,70cyclictest0-21swapper/912:00:2431
174229913349,61cyclictest0-21swapper/2208:47:5015
174229913349,61cyclictest0-21swapper/2208:47:4915
174229913342,61cyclictest0-21swapper/2210:07:0115
174229913326,61cyclictest0-21swapper/2208:40:2715
174229913326,61cyclictest0-21swapper/2208:40:2715
173399913329,72cyclictest0-21swapper/912:22:3431
173399913328,70cyclictest0-21swapper/907:15:0231
173399913327,66cyclictest0-21swapper/911:48:2131
17335991336,77cyclictest0-21swapper/808:36:4930
17335991336,77cyclictest0-21swapper/808:36:4930
172919913319,80cyclictest0-21swapper/108:57:591
172919913319,80cyclictest0-21swapper/108:57:591
174229913229,70cyclictest0-21swapper/2211:56:3515
174229913228,60cyclictest0-21swapper/2212:33:2815
174229913228,60cyclictest0-21swapper/2212:33:2715
174229913227,64cyclictest0-21swapper/2210:56:4415
173859913259,26cyclictest0-21swapper/1610:15:218
173399913242,62cyclictest0-21swapper/911:44:0531
173399913229,74cyclictest0-21swapper/909:13:5431
17296991320,89cyclictest0-21swapper/209:51:1212
174229913151,58cyclictest0-21swapper/2211:12:1415
174229913131,72cyclictest0-21swapper/2212:12:3715
173399913131,70cyclictest0-21swapper/911:17:5331
173399913128,71cyclictest0-21swapper/911:08:4731
173159913145,58cyclictest0-21swapper/511:57:3327
172919913133,54cyclictest0-21swapper/111:31:071
174229913043,57cyclictest0-21swapper/2211:26:0715
174229913028,69cyclictest0-21swapper/2210:04:2115
173399913052,65cyclictest0-21swapper/909:51:1931
173399913046,57cyclictest0-21swapper/911:13:0531
173399913027,63cyclictest0-21swapper/910:12:0931
173399913015,91cyclictest0-21swapper/907:40:2331
173399913015,91cyclictest0-21swapper/907:40:2331
17296991300,87cyclictest0-21swapper/210:25:3812
174229912948,58cyclictest0-21swapper/2209:04:5615
174229912930,66cyclictest0-21swapper/2208:05:2815
174229912930,66cyclictest0-21swapper/2208:05:2715
174229912929,62cyclictest0-21swapper/2209:45:0115
174229912926,69cyclictest0-21swapper/2210:53:3115
174229912926,67cyclictest0-21swapper/2211:05:1615
174229912925,61cyclictest0-21swapper/2209:21:3615
173609912914,32cyclictest0-21swapper/1211:10:164
172919912927,52cyclictest0-21swapper/112:14:401
174229912837,62cyclictest0-21swapper/2211:47:1315
174229912828,66cyclictest0-21swapper/2211:36:1715
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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