You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-19 - 16:27
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 50 highest latencies:
System rack3slot6.osadl.org (updated Wed Nov 19, 2025 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1153321260,5chrt11536-21sed09:15:020
1153321260,5chrt11536-21sed09:15:010
193392940,6chrt19336-21cat12:35:400
3091729137,43sleep10-21swapper/107:07:591
31298998761,15cyclictest26-21ksoftirqd/110:35:171
31298998260,13cyclictest26-21ksoftirqd/111:50:161
31298997947,17cyclictest26-21ksoftirqd/108:15:151
3129299793,43cyclictest16652-21chrt09:29:560
153772790,20sleep1251rcuc/109:25:241
3129299786,61cyclictest14886-21apt-get12:25:140
31298997649,18cyclictest26-21ksoftirqd/111:00:181
3129299759,41cyclictest0-21swapper/011:55:070
3129299755,44cyclictest0-21swapper/009:36:300
3129299745,43cyclictest0-21swapper/011:16:360
31298997346,17cyclictest26-21ksoftirqd/112:30:181
31298997346,16cyclictest26-21ksoftirqd/109:30:151
31292997339,28cyclictest14-21ksoftirqd/010:40:180
3129299726,55cyclictest29436-21apt-get11:35:150
31298997152,11cyclictest26-21ksoftirqd/108:30:171
300522716,51sleep030109-21missed_timers07:05:250
31298997042,21cyclictest26-21ksoftirqd/111:40:131
31298997041,18cyclictest0-21swapper/112:20:151
31292997034,10cyclictest1559-21irqstats08:45:240
31298996943,17cyclictest26-21ksoftirqd/109:35:131
31298996942,18cyclictest26-21ksoftirqd/112:00:161
31298996942,18cyclictest26-21ksoftirqd/112:00:151
31298996927,38cyclictest26-21ksoftirqd/111:15:251
31298996847,12cyclictest0-21swapper/107:40:241
31298996812,50cyclictest36-21kcompactd012:35:161
31298996636,19cyclictest26-21ksoftirqd/110:05:141
31298996536,23cyclictest26-21ksoftirqd/107:25:141
31298996536,21cyclictest26-21ksoftirqd/109:05:141
31298996535,21cyclictest26-21ksoftirqd/110:15:141
31298996534,22cyclictest26-21ksoftirqd/108:05:131
31292996523,36cyclictest26558-21sort08:25:220
31292996512,13cyclictest0-21swapper/009:00:160
31298996334,16cyclictest0-21swapper/109:15:131
31298996250,8cyclictest26-21ksoftirqd/107:38:391
31298996237,17cyclictest26-21ksoftirqd/112:25:151
31298996236,14cyclictest0-21swapper/107:30:141
243752620,5chrt24378-21aten2.4_r3power11:20:200
31298996139,16cyclictest18762-21aten2.4_r3power11:05:221
31298996131,21cyclictest0-21swapper/107:55:171
31298996131,21cyclictest0-21swapper/107:55:161
31298996041,11cyclictest26-21ksoftirqd/107:10:311
31298996040,12cyclictest26-21ksoftirqd/110:10:211
31298996037,17cyclictest26-21ksoftirqd/107:18:521
31298996036,17cyclictest26-21ksoftirqd/110:20:161
31298996036,15cyclictest0-21swapper/111:35:131
31298996035,18cyclictest31284-21cyclictest09:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional