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2025-12-14 - 04:26
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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 Dec 14, 2025 00:47:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233702286278,6sleep300-21swapper/3019:05:1024
233702286278,6sleep300-21swapper/3019:05:1024
330891265257,6phc2sys0-21swapper/219:07:2712
330891265257,6phc2sys0-21swapper/219:07:2712
258032256247,7sleep60-21swapper/619:05:1828
258032256247,7sleep60-21swapper/619:05:1828
28326991300,21cyclictest0-21swapper/1521:56:167
283509911129,49cyclictest0-21swapper/1900:05:1211
282979910946,36cyclictest0-21swapper/1022:05:252
283269910731,46cyclictest0-21swapper/1500:21:597
283209910737,43cyclictest0-21swapper/1422:45:166
282979910715,55cyclictest0-21swapper/1000:30:012
283769910513,79cyclictest0-21swapper/2323:55:2416
282369910419,44cyclictest0-21swapper/021:10:160
283209910217,51cyclictest0-21swapper/1400:02:446
282369910134,37cyclictest0-21swapper/000:25:300
283509910036,45cyclictest0-21swapper/1923:09:5511
283099910028,37cyclictest0-21swapper/1223:50:124
28358999926,44cyclictest0-21swapper/2000:20:1613
28241999930,37cyclictest0-21swapper/123:04:171
28411999823,46cyclictest0-21swapper/2900:38:1422
28411999823,46cyclictest0-21swapper/2900:38:1422
28350999831,42cyclictest0-21swapper/1920:30:2611
28245999817,81cyclictest0-21swapper/219:43:3912
28358999726,44cyclictest0-21swapper/2021:35:1013
28358999725,40cyclictest0-21swapper/2000:00:1213
28350999732,41cyclictest0-21swapper/1921:52:5611
28320999721,47cyclictest0-21swapper/1422:58:046
28236999729,42cyclictest0-21swapper/023:40:230
28326999626,45cyclictest0-21swapper/1521:35:167
28320999620,46cyclictest0-21swapper/1421:57:116
28376999520,44cyclictest0-21swapper/2322:35:1616
28376999519,44cyclictest0-21swapper/2320:47:2016
28369999521,43cyclictest0-21swapper/2220:05:0615
28358999533,40cyclictest0-21swapper/2022:38:2113
28309999516,48cyclictest0-21swapper/1200:26:294
28297999521,48cyclictest0-21swapper/1021:00:292
28297999519,45cyclictest0-21swapper/1023:30:042
28267999516,62cyclictest0-21swapper/523:10:1327
28411999423,39cyclictest0-21swapper/2900:30:1322
28411999415,49cyclictest0-21swapper/2919:41:1222
28388999425,39cyclictest0-21swapper/2520:00:2218
28388999424,44cyclictest0-21swapper/2500:25:2118
28388999422,47cyclictest0-21swapper/2521:05:3218
28320999428,36cyclictest0-21swapper/1423:25:206
28309999422,40cyclictest0-21swapper/1223:10:564
28241999426,46cyclictest0-21swapper/123:25:251
28241999425,38cyclictest0-21swapper/123:55:341
28241999421,41cyclictest0-21swapper/100:36:101
28241999421,41cyclictest0-21swapper/100:36:101
28236999415,50cyclictest0-21swapper/023:39:510
28388999318,48cyclictest167-21ksoftirqd/2522:10:1118
28388999314,49cyclictest0-21swapper/2520:25:2818
28376999319,39cyclictest0-21swapper/2319:20:1516
28376999319,39cyclictest0-21swapper/2319:20:1516
28369999323,37cyclictest0-21swapper/2223:55:2315
28326999330,42cyclictest0-21swapper/1520:55:137
28297999320,40cyclictest0-21swapper/1023:25:012
28241999314,52cyclictest0-21swapper/122:30:051
28236999324,43cyclictest0-21swapper/023:30:140
28236999314,48cyclictest0-21swapper/023:55:210
28358999216,48cyclictest0-21swapper/2020:35:2213
28350999221,42cyclictest0-21swapper/1900:25:1511
28326999218,44cyclictest0-21swapper/1520:40:167
28320999216,46cyclictest0-21swapper/1400:34:146
28309999223,45cyclictest0-21swapper/1220:20:314
28297999219,44cyclictest0-21swapper/1023:45:342
28297999219,43cyclictest0-21swapper/1000:05:202
28376999119,44cyclictest0-21swapper/2319:40:0116
28376999115,45cyclictest0-21swapper/2320:30:1516
28358999115,46cyclictest0-21swapper/2023:21:5813
28350999123,46cyclictest0-21swapper/1920:25:2211
28320999126,43cyclictest0-21swapper/1400:10:126
28309999113,48cyclictest0-21swapper/1200:20:234
28245999117,51cyclictest0-21swapper/221:28:5412
28241999123,37cyclictest0-21swapper/121:00:241
28411999023,37cyclictest0-21swapper/2923:05:1722
28411999015,46cyclictest0-21swapper/2900:05:0722
28376999011,46cyclictest0-21swapper/2319:30:2416
28350999022,42cyclictest0-21swapper/1900:16:4211
28350999014,44cyclictest0-21swapper/1900:10:1711
28326999014,48cyclictest0-21swapper/1522:22:507
28320999016,39cyclictest0-21swapper/1422:00:236
28309999020,45cyclictest0-21swapper/1200:39:054
28309999020,45cyclictest0-21swapper/1200:39:054
28309999018,44cyclictest0-21swapper/1222:50:204
28309999013,49cyclictest0-21swapper/1223:45:254
28297999022,41cyclictest0-21swapper/1019:25:232
28297999022,41cyclictest0-21swapper/1019:25:232
28236999019,44cyclictest0-21swapper/022:35:100
28411998931,43cyclictest0-21swapper/2922:10:1722
28411998916,46cyclictest0-21swapper/2923:20:1422
28411998915,47cyclictest0-21swapper/2921:29:5822
28411998914,47cyclictest0-21swapper/2921:19:3022
28411998914,46cyclictest0-21swapper/2923:46:5722
28388998922,43cyclictest0-21swapper/2522:20:5218
28376998928,39cyclictest0-21swapper/2322:45:2516
28376998917,42cyclictest0-21swapper/2321:10:1916
28369998927,37cyclictest149-21ksoftirqd/2222:40:3515
28369998921,43cyclictest0-21swapper/2220:42:3115
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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