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2025-11-16 - 07:54
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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 highest latencies:
System rack1slot8.osadl.org (updated Sun Nov 16, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1217899787715,64cyclictest0-21swapper/019:10:050
117892645621,16sleep00-21swapper/019:06:300
120212630612,12sleep10-21swapper/119:08:501
1217899412342,53cyclictest0-21swapper/019:27:210
1217999386313,36cyclictest0-21swapper/119:27:221
2740521680,11sleep11217999cyclictest19:50:201
2168991170,5rtkit-daemon2167-21rtkit-daemon21:18:401
1217999905,65cyclictest0-21swapper/120:46:001
216899830,4rtkit-daemon2167-21rtkit-daemon23:45:281
216899830,4rtkit-daemon2167-21rtkit-daemon23:45:271
216899810,4rtkit-daemon2167-21rtkit-daemon23:40:231
216899800,5rtkit-daemon2167-21rtkit-daemon22:41:211
216899800,5rtkit-daemon2167-21rtkit-daemon22:18:251
216899800,4rtkit-daemon2167-21rtkit-daemon00:15:231
1217999805,55cyclictest0-21swapper/123:25:001
216899780,5rtkit-daemon2167-21rtkit-daemon20:37:041
216899770,4rtkit-daemon2167-21rtkit-daemon20:55:241
216899760,4rtkit-daemon2167-21rtkit-daemon23:15:471
216899750,4rtkit-daemon2167-21rtkit-daemon20:50:231
216899740,4rtkit-daemon2167-21rtkit-daemon20:43:231
12178997315,34cyclictest0-21swapper/022:55:190
216899720,4rtkit-daemon2167-21rtkit-daemon23:27:071
216899720,4rtkit-daemon2167-21rtkit-daemon20:19:441
216899710,5rtkit-daemon2167-21rtkit-daemon00:08:481
216899690,3rtkit-daemon2167-21rtkit-daemon23:38:571
12178996638,23cyclictest0-21swapper/023:03:090
216899640,3rtkit-daemon2167-21rtkit-daemon23:53:471
278962626,15sleep10-21swapper/123:09:511
216899620,3rtkit-daemon23186-21diskmemload21:52:301
216899620,3rtkit-daemon15-21rcuop/120:31:231
1904726216,13sleep00-21swapper/022:54:040
1904726216,13sleep00-21swapper/022:54:040
322922614,22sleep00-21swapper/000:12:390
1217899616,45cyclictest0-21swapper/023:35:090
12178996137,18cyclictest0-21swapper/000:07:590
12178996133,22cyclictest0-21swapper/021:50:210
12178996125,29cyclictest0-21swapper/000:30:010
1217899607,45cyclictest0-21swapper/021:25:140
1217899607,45cyclictest0-21swapper/021:25:130
12178996010,43cyclictest0-21swapper/021:35:230
216899590,4rtkit-daemon2167-21rtkit-daemon21:27:451
216899590,4rtkit-daemon2167-21rtkit-daemon21:27:441
12178995938,16cyclictest0-21swapper/023:28:350
71862580,12sleep11217999cyclictest21:35:321
12178995836,18cyclictest0-21swapper/023:45:190
12178995836,18cyclictest0-21swapper/023:45:180
12178995819,34cyclictest0-21swapper/023:15:150
12178995815,27cyclictest0-21swapper/023:10:000
103912584,19sleep00-21swapper/020:33:320
216899570,5rtkit-daemon2167-21rtkit-daemon00:12:031
12178995726,26cyclictest0-21swapper/020:10:010
12178995716,36cyclictest0-21swapper/021:10:590
12178995710,40cyclictest0-21swapper/021:31:310
1217899567,44cyclictest0-21swapper/000:23:400
1217899565,44cyclictest0-21swapper/022:11:040
12178995635,16cyclictest0-21swapper/022:10:000
12178995634,17cyclictest0-21swapper/000:15:220
12178995631,18cyclictest0-21swapper/022:16:400
12178995621,29cyclictest0-21swapper/021:40:070
220982555,16sleep10-21swapper/119:35:261
1217999555,30cyclictest0-21swapper/119:46:001
1217899556,43cyclictest0-21swapper/021:20:150
1217899556,19cyclictest0-21swapper/022:28:110
1217899554,45cyclictest0-21swapper/000:03:570
12178995524,26cyclictest0-21swapper/022:37:060
12178995524,26cyclictest0-21swapper/022:24:400
1217999545,33cyclictest0-21swapper/119:32:591
1217899547,41cyclictest0-21swapper/023:50:150
1217899545,41cyclictest0-21swapper/023:57:240
12178995433,17cyclictest0-21swapper/000:31:150
12178995432,17cyclictest0-21swapper/023:11:040
12178995431,15cyclictest0-21swapper/020:42:260
12178995431,15cyclictest0-21swapper/000:39:330
12178995430,16cyclictest0-21swapper/021:59:110
12178995429,17cyclictest0-21swapper/023:40:300
12178995428,21cyclictest0-21swapper/022:40:090
164342534,12sleep00-21swapper/019:20:190
1217899537,40cyclictest0-21swapper/023:23:240
1217899536,41cyclictest0-21swapper/020:15:230
1217899535,41cyclictest0-21swapper/022:45:120
12178995332,16cyclictest0-21swapper/019:50:230
12178995330,19cyclictest0-21swapper/019:30:200
12178995329,16cyclictest0-21swapper/022:31:130
12178995327,21cyclictest0-21swapper/020:55:210
12178995316,28cyclictest0-21swapper/021:15:020
12178995315,31cyclictest0-21swapper/022:00:220
88992524,14sleep10-21swapper/121:40:141
318692524,12sleep00-21swapper/020:03:390
1217999524,38cyclictest0-21swapper/121:58:581
12178995231,16cyclictest0-21swapper/020:25:020
12178995225,22cyclictest0-21swapper/021:00:180
59342513,6sleep15938-21ssh00:23:051
53072514,12sleep10-21swapper/121:33:501
250912514,12sleep10-21swapper/121:12:081
245302514,12sleep10-21swapper/119:42:321
216899510,5rtkit-daemon2167-21rtkit-daemon22:30:151
216899510,4rtkit-daemon2167-21rtkit-daemon20:10:290
216899510,3rtkit-daemon2167-21rtkit-daemon23:56:281
215182514,12sleep10-21swapper/121:05:041
141252514,12sleep10-21swapper/119:15:131
1217899519,32cyclictest0-21swapper/023:30:160
1217899515,41cyclictest0-21swapper/019:42:530
12178995131,16cyclictest0-21swapper/019:45:160
12178995129,15cyclictest0-21swapper/020:49:120
12178995122,23cyclictest0-21swapper/021:49:320
42112504,12sleep10-21swapper/122:27:251
301612504,11sleep00-21swapper/019:59:460
216899500,5rtkit-daemon2167-21rtkit-daemon22:23:151
216899500,5rtkit-daemon2167-21rtkit-daemon22:15:001
215232504,11sleep00-21swapper/021:05:070
173402504,12sleep00-21swapper/020:50:530
136812504,12sleep10-21swapper/119:12:101
1217999504,34cyclictest0-21swapper/100:28:581
12178995030,16cyclictest0-21swapper/020:25:150
12178995030,15cyclictest0-21swapper/019:15:250
296332494,11sleep10-21swapper/123:11:171
216899490,4rtkit-daemon2167-21rtkit-daemon20:20:281
216899490,4rtkit-daemon2167-21rtkit-daemon19:38:020
209872494,12sleep10-21swapper/122:56:061
161002495,10sleep10-21swapper/122:48:521
122682494,12sleep10-21swapper/100:34:371
1217999495,33cyclictest0-21swapper/120:30:001
1217999495,32cyclictest0-21swapper/122:38:591
1217999495,30cyclictest0-21swapper/121:47:591
1217999495,30cyclictest0-21swapper/119:25:001
1217999495,29cyclictest0-21swapper/123:32:591
1217999495,28cyclictest0-21swapper/119:56:001
1217999494,40cyclictest0-21swapper/121:03:201
1217999494,34cyclictest0-21swapper/120:11:001
12178994925,18cyclictest0-21swapper/020:35:190
316302484,11sleep10-21swapper/120:01:141
262462485,35sleep10-21swapper/100:01:511
216899480,4rtkit-daemon2167-21rtkit-daemon22:50:171
216899480,4rtkit-daemon2167-21rtkit-daemon22:50:161
250652474,12sleep10-21swapper/123:04:581
226132475,35sleep10-21swapper/122:03:431
216899470,5rtkit-daemon2167-21rtkit-daemon22:05:551
216899460,4rtkit-daemon2167-21rtkit-daemon21:20:491
216899450,4rtkit-daemon2167-21rtkit-daemon00:36:281
1217999445,28cyclictest0-21swapper/120:09:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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