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2026-04-04 - 17:23
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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 rack3slot6.osadl.org (updated Sat Apr 04, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
341128930,49sleep10-21swapper/107:06:591
3882998044,16cyclictest14-21ksoftirqd/011:05:170
3882998044,15cyclictest14-21ksoftirqd/012:05:170
351527922,45sleep00-21swapper/007:08:070
3882997332,20cyclictest4807-21python307:10:320
3882997332,20cyclictest4807-21python307:10:320
388299716,22cyclictest29193-21apt-get09:50:130
3885997026,39cyclictest26-21ksoftirqd/107:15:031
3882997041,15cyclictest14-21ksoftirqd/008:55:270
3882997032,11cyclictest14-21ksoftirqd/010:55:180
3885996937,23cyclictest15143-31frcode07:40:181
3882996930,16cyclictest10164-21aten2.4-expect07:25:270
3885996848,9cyclictest26-21ksoftirqd/107:30:131
3882996835,11cyclictest14-21ksoftirqd/007:39:250
3885996722,10cyclictest26-21ksoftirqd/112:03:391
3882996746,16cyclictest14-21ksoftirqd/009:35:330
3882996745,16cyclictest503-21snmpd08:10:340
3882996736,17cyclictest14-21ksoftirqd/009:30:160
3882996734,12cyclictest14-21ksoftirqd/011:55:260
3882996731,30cyclictest14-21ksoftirqd/007:55:390
3885996619,11cyclictest26-21ksoftirqd/109:35:341
388299665,53cyclictest28629-21apt-get11:20:100
3882996627,33cyclictest13444-21aten2.4-expect09:05:150
3885996546,12cyclictest0-21swapper/111:10:111
3882996538,15cyclictest14-21ksoftirqd/012:35:160
3882996538,14cyclictest14-21ksoftirqd/008:25:160
3882996536,23cyclictest14-21ksoftirqd/008:20:130
3882996535,25cyclictest14-21ksoftirqd/012:20:160
3882996533,11cyclictest14-21ksoftirqd/009:15:260
3882996531,11cyclictest14-21ksoftirqd/009:25:230
3882996526,15cyclictest14-21ksoftirqd/011:50:010
3885996438,11cyclictest26-21ksoftirqd/109:05:111
3882996434,24cyclictest14-21ksoftirqd/007:40:090
3882996433,11cyclictest14-21ksoftirqd/011:00:190
3882996431,12cyclictest14-21ksoftirqd/010:50:360
3882996430,11cyclictest14-21ksoftirqd/007:15:370
3882996426,14cyclictest14-21ksoftirqd/010:00:000
3882996425,15cyclictest14-21ksoftirqd/012:05:010
3885996320,39cyclictest26-21ksoftirqd/109:45:291
3882996334,16cyclictest503-21snmpd11:13:580
3882996333,24cyclictest14-21ksoftirqd/010:05:170
3882996332,25cyclictest14-21ksoftirqd/009:10:180
3882996332,10cyclictest14-21ksoftirqd/010:10:340
3882996331,11cyclictest14-21ksoftirqd/008:50:220
3882996331,11cyclictest14-21ksoftirqd/007:35:010
3882996331,10cyclictest14-21ksoftirqd/010:35:220
3882996234,22cyclictest14-21ksoftirqd/010:25:340
3882996229,12cyclictest14-21ksoftirqd/010:15:180
3882996223,15cyclictest14-21ksoftirqd/010:45:000
3885996115,40cyclictest0-21swapper/109:20:131
3885996113,17cyclictest0-21swapper/112:10:141
3882996134,11cyclictest14-21ksoftirqd/008:35:300
3882996132,24cyclictest14-21ksoftirqd/011:30:290
3882996131,11cyclictest14-21ksoftirqd/008:15:190
3882996130,11cyclictest14-21ksoftirqd/012:30:300
3882996130,11cyclictest14-21ksoftirqd/011:40:250
3882996126,11cyclictest14-21ksoftirqd/008:40:270
3882996125,15cyclictest14-21ksoftirqd/011:30:010
3882996039,17cyclictest14-21ksoftirqd/009:45:160
3882996036,18cyclictest14-21ksoftirqd/009:40:150
3882996032,17cyclictest14-21ksoftirqd/012:14:120
3882996031,23cyclictest14-21ksoftirqd/008:45:310
3882996025,14cyclictest14-21ksoftirqd/008:10:000
388599593,18cyclictest14998-21diskmemload09:10:221
3882995936,17cyclictest14-21ksoftirqd/008:30:210
3882995936,17cyclictest14-21ksoftirqd/008:00:070
3882995935,18cyclictest14-21ksoftirqd/009:20:200
3882995922,13cyclictest14-21ksoftirqd/011:40:000
3882995922,13cyclictest14-21ksoftirqd/011:40:000
3882995921,15cyclictest14-21ksoftirqd/010:25:000
3882995921,15cyclictest14-21ksoftirqd/010:25:000
3882995920,19cyclictest2126-21cron10:05:000
3885995833,16cyclictest0-21swapper/108:00:231
3885995828,20cyclictest0-21swapper/109:00:241
3885995811,42cyclictest0-21swapper/110:05:261
3882995835,17cyclictest14-21ksoftirqd/012:15:030
3882995833,19cyclictest14-21ksoftirqd/009:00:110
3882995822,13cyclictest14-21ksoftirqd/011:15:110
3882995819,14cyclictest14-21ksoftirqd/011:55:000
3882995812,40cyclictest0-21swapper/010:49:090
3885995741,11cyclictest0-21swapper/107:55:201
3885995715,11cyclictest0-21swapper/107:39:411
3885995712,10cyclictest0-21swapper/110:30:121
3882995743,9cyclictest14-21ksoftirqd/012:25:130
3882995735,17cyclictest14-21ksoftirqd/007:47:280
3882995735,16cyclictest14-21ksoftirqd/010:31:460
245042573,10sleep1503-21snmpd12:38:411
93442564,45sleep19395-21aten2.4_r3power10:25:151
388599566,40cyclictest26252-21apt-get08:10:151
388599564,19cyclictest24956-21cron11:10:001
3885995640,11cyclictest0-21swapper/111:40:221
3885995635,16cyclictest1657-21taskset08:30:321
3885995628,19cyclictest20420-21runrttasks09:25:131
388599558,11cyclictest0-21swapper/111:45:141
388599555,14cyclictest28977-21diskstats11:20:201
3885995539,11cyclictest0-21swapper/111:34:511
3885995537,13cyclictest26-21ksoftirqd/111:39:001
3885995537,13cyclictest26-21ksoftirqd/111:39:001
3885995519,30cyclictest26-21ksoftirqd/110:51:241
3885995514,14cyclictest0-21swapper/110:15:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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