You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-28 - 07:31
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 100 highest latencies:
System rack3slot6.osadl.org (updated Fri Nov 28, 2025 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1498999767,20cyclictest88092sleep021:00:170
1498999668,16cyclictest0-21swapper/021:30:160
1498999469,14cyclictest14-21ksoftirqd/020:45:150
103129217,31sleep10-21swapper/119:07:091
1498999061,19cyclictest14-21ksoftirqd/000:05:230
1498998960,20cyclictest14-21ksoftirqd/023:40:130
1498998859,19cyclictest14-21ksoftirqd/019:55:140
1498998859,19cyclictest14-21ksoftirqd/019:55:140
1498998764,15cyclictest14-21ksoftirqd/022:20:130
1498998761,17cyclictest14-21ksoftirqd/000:25:150
1498998759,17cyclictest14-21ksoftirqd/022:45:140
1498998752,20cyclictest0-21swapper/021:20:140
10702869,31sleep00-21swapper/019:07:310
1498998251,18cyclictest27428-21kworker/u8:123:30:140
1498998052,18cyclictest14-21ksoftirqd/019:30:140
1498998015,22cyclictest12166-21diskmemload21:10:120
1498997951,19cyclictest14-21ksoftirqd/023:45:160
1498997855,16cyclictest14-21ksoftirqd/020:30:120
1498997850,17cyclictest14-21ksoftirqd/023:10:130
1498997750,18cyclictest14-21ksoftirqd/023:55:110
1498997747,20cyclictest14-21ksoftirqd/022:40:150
1498997746,21cyclictest14-21ksoftirqd/022:10:160
1498997746,20cyclictest14-21ksoftirqd/021:25:150
1498997444,19cyclictest14-21ksoftirqd/022:35:150
1498997344,20cyclictest14-21ksoftirqd/019:15:130
1498997341,19cyclictest14-21ksoftirqd/019:45:120
1498997245,17cyclictest14-21ksoftirqd/019:20:160
1498997242,19cyclictest14-21ksoftirqd/021:55:120
54312710,6chrt0-21swapper/122:20:281
1498997141,17cyclictest0-21swapper/000:30:180
1498997140,19cyclictest14-21ksoftirqd/021:15:110
1498997139,18cyclictest0-21swapper/020:35:250
122692710,5chrt0-21swapper/119:39:001
103862700,5sleep110384-21idleruntime-cro21:05:011
1498996939,18cyclictest0-21swapper/020:55:150
1498996841,16cyclictest0-21swapper/020:20:130
1498996840,19cyclictest0-21swapper/023:50:140
1498996840,16cyclictest0-21swapper/021:50:160
1498996836,18cyclictest0-21swapper/022:15:140
1498996815,39cyclictest0-21swapper/022:55:160
1498996735,21cyclictest14-21ksoftirqd/020:05:160
150399662,49cyclictest20543-21seq23:04:141
1498996629,24cyclictest14-21ksoftirqd/019:25:150
1498996620,36cyclictest0-21swapper/023:05:160
1498996617,38cyclictest0-21swapper/000:20:150
1498996613,43cyclictest0-21swapper/022:25:150
1498996612,43cyclictest0-21swapper/020:10:160
1498996612,42cyclictest0-21swapper/022:05:160
34392650,5chrt3440-21/usr/sbin/munin22:15:231
1503996538,9cyclictest26-21ksoftirqd/123:18:421
1498996539,20cyclictest1490-21cyclictest23:20:160
1498996517,35cyclictest0-21swapper/020:00:240
243242640,6chrt36-21kcompactd021:40:481
204912640,5sleep10-21swapper/120:00:361
1503996436,13cyclictest26-21ksoftirqd/122:50:001
1503996418,17cyclictest4309-21sed19:15:261
1503996413,14cyclictest151rcu_preempt19:30:011
1498996440,15cyclictest14-21ksoftirqd/020:40:140
1498996436,16cyclictest0-21swapper/021:45:130
1498996421,35cyclictest31366-21aten2.4-expect23:35:150
1498996420,36cyclictest23344-21aten2.4-expect21:40:270
1498996418,37cyclictest0-21swapper/021:05:170
1498996418,21cyclictest254-21systemd-journal22:53:020
1498996412,39cyclictest0-21swapper/000:10:150
1498996410,12cyclictest0-21swapper/000:00:330
1503996318,23cyclictest26-21ksoftirqd/100:00:041
149899636,45cyclictest0-21swapper/022:00:130
1498996334,21cyclictest1490-21cyclictest00:35:110
1498996322,34cyclictest8388-21aten2.4-expect22:30:180
1503996239,9cyclictest26-21ksoftirqd/121:57:031
1503996223,24cyclictest26-21ksoftirqd/100:05:051
1498996239,14cyclictest0-21swapper/020:15:130
1498996234,16cyclictest0-21swapper/023:25:150
1498996217,37cyclictest24419-21aten2.4-expect23:15:170
1503996118,16cyclictest26-21ksoftirqd/120:40:011
149899617,43cyclictest0-21swapper/020:50:160
149899614,44cyclictest0-21swapper/019:35:130
1498996119,34cyclictest16188-21aten2.4-expect19:50:200
1498996119,34cyclictest16188-21aten2.4-expect19:50:190
1498996117,36cyclictest21189-21tail21:35:200
150399603,11cyclictest15529-21packagekitd22:50:051
1503996025,13cyclictest26-21ksoftirqd/122:10:251
1503996019,21cyclictest26-21ksoftirqd/119:20:321
1503996012,43cyclictest0-21swapper/121:35:371
149899608,41cyclictest0-21swapper/000:15:180
1498996022,32cyclictest1730-21aten2.4-expect19:10:180
1503995936,17cyclictest12166-21diskmemload21:10:251
1503995924,22cyclictest26-21ksoftirqd/100:35:261
1503995922,13cyclictest26-21ksoftirqd/123:05:311
1503995921,13cyclictest26-21ksoftirqd/122:06:221
1503995915,33cyclictest0-21swapper/100:20:161
149899598,21cyclictest30223-21munin-plugin-st20:30:000
149899597,38cyclictest0-21swapper/019:40:130
1503995832,9cyclictest26-21ksoftirqd/100:18:011
149899583,46cyclictest19155-21aten2.4-expect23:00:160
150399577,44cyclictest0-21swapper/119:45:161
150399576,22cyclictest0-21swapper/123:55:211
1503995733,9cyclictest26-21ksoftirqd/120:10:181
1503995721,18cyclictest26-21ksoftirqd/121:09:181
1503995717,25cyclictest26-21ksoftirqd/120:45:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional