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2026-03-30 - 03:38
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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 rack7slot1.osadl.org (updated Mon Mar 30, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2948211757,55sleep20-21swapper/219:08:152
2845211251,56sleep30-21swapper/319:07:043
2733210248,21sleep10-21swapper/119:05:501
299628352,26sleep00-21swapper/019:08:490
220092550,1sleep022948-21stress23:37:390
3198995420,19cyclictest0-21swapper/222:10:212
3198995420,19cyclictest0-21swapper/222:10:212
319899525,29cyclictest22950-21stress22:25:382
3196995117,23cyclictest0-21swapper/023:00:200
3196995117,23cyclictest0-21swapper/021:30:240
3196995115,24cyclictest0-21swapper/020:05:110
3196995017,22cyclictest0-21swapper/023:40:170
3196995015,19cyclictest0-21swapper/023:10:010
319899494,26cyclictest25590-21if_eth022:30:212
319899493,28cyclictest22950-21stress00:35:232
3196994916,22cyclictest0-21swapper/021:49:380
319899483,29cyclictest1899-21runrttasks21:48:172
3196994816,22cyclictest0-21swapper/000:15:300
319899473,28cyclictest1899-21runrttasks23:49:552
3196994716,21cyclictest0-21swapper/021:50:140
3196994716,19cyclictest0-21swapper/000:35:250
319899466,23cyclictest22948-21stress00:05:342
319899466,23cyclictest22948-21stress00:05:332
319899463,28cyclictest22950-21stress23:15:012
319899454,30cyclictest22950-21stress00:25:292
319899454,26cyclictest22950-21stress23:51:572
319899453,30cyclictest1899-21runrttasks20:41:442
3198994520,22cyclictest0-21swapper/223:18:382
319699457,27cyclictest0-21swapper/021:35:110
319699457,27cyclictest0-21swapper/021:35:100
3196994515,22cyclictest0-21swapper/020:00:160
3196994515,21cyclictest0-21swapper/022:10:000
3196994514,22cyclictest0-21swapper/000:05:190
3196994514,22cyclictest0-21swapper/000:05:180
319899443,29cyclictest1899-21runrttasks20:32:272
319899443,25cyclictest22948-21stress23:36:042
3198994423,18cyclictest0-21swapper/200:14:112
3198994422,20cyclictest0-21swapper/200:20:342
319799445,18cyclictest0-21swapper/122:57:031
3196994415,20cyclictest0-21swapper/000:25:350
3196994413,23cyclictest0-21swapper/019:45:180
3196994413,23cyclictest0-21swapper/019:40:150
3196994413,17cyclictest0-21swapper/022:45:130
3196994413,17cyclictest0-21swapper/022:45:120
319899435,23cyclictest0-21swapper/222:35:322
319899433,27cyclictest9685-21cat19:20:222
319899433,27cyclictest3713-21latency_hist20:25:022
319899433,26cyclictest22950-21stress22:48:582
319899433,26cyclictest22950-21stress22:48:582
3198994321,19cyclictest0-21swapper/222:54:512
3198994319,21cyclictest0-21swapper/223:55:212
3198994319,21cyclictest0-21swapper/223:55:202
3198994318,23cyclictest0-21swapper/221:35:012
3196994315,25cyclictest0-21swapper/022:31:350
3196994314,26cyclictest0-21swapper/022:00:210
3196994314,21cyclictest0-21swapper/020:55:120
3196994312,23cyclictest0-21swapper/020:40:190
319899423,28cyclictest23709-21hostname21:10:202
319899423,26cyclictest12084-21grep19:25:242
319899423,26cyclictest12084-21grep19:25:242
3198994223,17cyclictest0-21swapper/223:25:292
3198994223,17cyclictest0-21swapper/223:25:292
3196994218,21cyclictest0-21swapper/021:55:290
3196994216,23cyclictest0-21swapper/023:48:550
3196994216,23cyclictest0-21swapper/023:11:460
3196994216,23cyclictest0-21swapper/000:00:300
3196994215,24cyclictest0-21swapper/022:19:220
3196994214,20cyclictest0-21swapper/000:20:260
3196994213,22cyclictest0-21swapper/021:00:230
3196994212,23cyclictest0-21swapper/020:30:240
3196994212,22cyclictest0-21swapper/019:35:170
319899415,24cyclictest0-21swapper/221:05:002
319899415,24cyclictest0-21swapper/221:05:002
319899415,24cyclictest0-21swapper/219:15:242
319899413,25cyclictest9384-21awk21:50:362
319899413,25cyclictest3442-21aten2_r7power_c19:10:112
3196994114,24cyclictest0-21swapper/022:55:210
3196994114,24cyclictest0-21swapper/021:22:360
3196994112,21cyclictest0-21swapper/020:20:140
3196994112,19cyclictest0-21swapper/021:15:280
319899405,23cyclictest0-21swapper/219:30:102
319899403,22cyclictest22948-21stress22:15:142
3198994020,17cyclictest0-21swapper/221:25:212
3198994020,17cyclictest0-21swapper/221:25:212
3198994019,18cyclictest0-21swapper/200:35:002
3198994018,19cyclictest0-21swapper/222:23:092
3197994010,27cyclictest0-21swapper/123:10:341
319699407,25cyclictest0-21swapper/020:45:230
319699407,24cyclictest0-21swapper/019:20:190
3196994018,19cyclictest0-21swapper/021:40:220
3196994014,23cyclictest0-21swapper/022:54:560
3196994010,21cyclictest0-21swapper/023:25:220
3196994010,21cyclictest0-21swapper/023:25:220
319899398,29cyclictest18725-21fschecks_time23:30:182
319899395,22cyclictest0-21swapper/220:35:122
319899394,20cyclictest124332expr22:00:142
3198993920,17cyclictest0-21swapper/221:35:322
3198993920,17cyclictest0-21swapper/221:35:322
319699397,25cyclictest0-21swapper/020:35:160
319699395,27cyclictest0-21swapper/020:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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