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2025-12-01 - 19:38
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Mon Dec 01, 2025 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
629429728,24sleep10-21swapper/107:08:521
6586998315,16cyclictest0-21swapper/009:35:250
6591998054,11cyclictest504-21snmpd12:10:321
484027829,36sleep00-21swapper/007:05:150
6586997648,19cyclictest11981-21apt-get08:55:140
51192750,10sleep126-21ksoftirqd/110:05:311
658699718,54cyclictest6187-21apt-get10:10:130
6586997114,51cyclictest0-21swapper/012:00:120
6586997037,28cyclictest18210-21telnet07:40:180
6586997032,22cyclictest14-21ksoftirqd/008:20:000
6586996932,21cyclictest14-21ksoftirqd/012:35:210
6586996915,48cyclictest0-21swapper/010:30:160
6586996914,50cyclictest0-21swapper/009:15:130
6586996913,16cyclictest0-21swapper/010:00:140
6591996838,22cyclictest26-21ksoftirqd/111:25:131
658699686,54cyclictest29849-21apt-get09:45:140
6586996834,18cyclictest14-21ksoftirqd/011:50:000
6586996832,21cyclictest14-21ksoftirqd/011:20:350
6591996634,19cyclictest26-21ksoftirqd/109:40:161
6591996634,18cyclictest26-21ksoftirqd/108:35:021
6591996632,28cyclictest26-21ksoftirqd/108:40:361
6591996540,19cyclictest26-21ksoftirqd/107:30:481
6591996540,19cyclictest26-21ksoftirqd/107:30:471
6591996538,22cyclictest26-21ksoftirqd/107:45:411
6591996536,22cyclictest26-21ksoftirqd/111:00:191
6591996535,24cyclictest26-21ksoftirqd/107:15:281
6591996535,18cyclictest26-21ksoftirqd/109:55:191
6591996535,18cyclictest26-21ksoftirqd/108:36:241
6591996534,18cyclictest26-21ksoftirqd/111:20:181
6591996534,17cyclictest26-21ksoftirqd/111:35:341
6591996534,17cyclictest26-21ksoftirqd/110:45:411
6586996546,9cyclictest14-21ksoftirqd/010:50:120
6586996532,19cyclictest14-21ksoftirqd/011:15:170
6586996513,47cyclictest0-21swapper/007:20:130
6591996448,10cyclictest26-21ksoftirqd/110:35:311
6591996440,18cyclictest26-21ksoftirqd/112:05:261
6591996440,18cyclictest26-21ksoftirqd/111:45:301
6591996439,19cyclictest26-21ksoftirqd/108:00:171
6591996439,18cyclictest26-21ksoftirqd/107:40:371
6591996435,23cyclictest26-21ksoftirqd/111:05:291
6586996441,19cyclictest14-21ksoftirqd/011:15:010
6586996439,9cyclictest14-21ksoftirqd/009:10:190
6586996438,9cyclictest14-21ksoftirqd/008:00:010
6586996438,11cyclictest14-21ksoftirqd/012:25:200
6586996431,19cyclictest14-21ksoftirqd/008:35:210
6586996430,9cyclictest14-21ksoftirqd/008:43:400
6591996348,9cyclictest26-21ksoftirqd/110:20:121
6591996347,10cyclictest26-21ksoftirqd/112:20:351
6591996347,10cyclictest26-21ksoftirqd/111:40:361
6591996347,10cyclictest26-21ksoftirqd/108:50:361
6591996347,10cyclictest26-21ksoftirqd/108:05:371
6591996346,11cyclictest26-21ksoftirqd/112:25:241
6591996346,11cyclictest26-21ksoftirqd/109:30:311
6591996338,20cyclictest26-21ksoftirqd/108:10:271
6591996338,19cyclictest26-21ksoftirqd/112:35:241
6591996338,19cyclictest26-21ksoftirqd/110:25:211
6591996338,19cyclictest26-21ksoftirqd/110:10:221
6591996338,19cyclictest26-21ksoftirqd/108:45:281
6591996338,19cyclictest26-21ksoftirqd/108:20:211
6591996338,19cyclictest26-21ksoftirqd/107:35:351
6591996338,19cyclictest26-21ksoftirqd/107:20:261
6591996338,18cyclictest26-21ksoftirqd/112:00:211
6591996337,20cyclictest26-21ksoftirqd/109:10:221
6591996337,20cyclictest26-21ksoftirqd/109:05:241
6591996337,20cyclictest26-21ksoftirqd/107:50:211
6591996336,20cyclictest26-21ksoftirqd/112:30:321
6591996335,22cyclictest26-21ksoftirqd/111:15:281
6591996335,22cyclictest26-21ksoftirqd/107:58:381
6591996334,17cyclictest26-21ksoftirqd/108:55:181
6586996339,9cyclictest14-21ksoftirqd/011:55:360
6586996339,9cyclictest14-21ksoftirqd/008:50:480
6586996339,10cyclictest504-21snmpd12:05:040
6586996339,10cyclictest14-21ksoftirqd/008:00:100
6586996338,9cyclictest14-21ksoftirqd/012:20:120
6586996338,9cyclictest14-21ksoftirqd/012:20:010
6586996338,10cyclictest14-21ksoftirqd/011:25:120
6586996338,10cyclictest14-21ksoftirqd/010:20:010
6586996337,10cyclictest14-21ksoftirqd/009:35:000
6591996246,10cyclictest26-21ksoftirqd/110:40:261
6591996246,10cyclictest26-21ksoftirqd/109:45:371
6591996239,18cyclictest26-21ksoftirqd/110:00:271
6591996239,18cyclictest26-21ksoftirqd/109:35:401
6591996238,18cyclictest26-21ksoftirqd/111:55:181
6591996238,18cyclictest26-21ksoftirqd/111:30:191
6591996238,18cyclictest26-21ksoftirqd/111:30:181
6591996238,18cyclictest26-21ksoftirqd/111:10:221
6591996238,18cyclictest26-21ksoftirqd/110:55:201
6591996238,18cyclictest26-21ksoftirqd/110:15:251
6591996238,18cyclictest26-21ksoftirqd/109:20:201
6591996237,19cyclictest26-21ksoftirqd/112:15:351
6591996237,19cyclictest26-21ksoftirqd/111:50:421
6591996237,19cyclictest26-21ksoftirqd/109:50:211
6591996237,19cyclictest26-21ksoftirqd/109:25:351
6591996237,19cyclictest26-21ksoftirqd/109:00:241
6591996237,19cyclictest26-21ksoftirqd/109:00:231
6591996237,19cyclictest26-21ksoftirqd/108:25:251
6591996235,21cyclictest26-21ksoftirqd/110:50:181
6591996231,18cyclictest26-21ksoftirqd/109:15:271
6586996238,9cyclictest14-21ksoftirqd/012:15:010
6586996238,9cyclictest14-21ksoftirqd/011:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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