You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-11 - 11:06

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #7, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 rack7slot4s.osadl.org (updated Wed Mar 11, 2026 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
845799594,48cyclictest25645-21ssh22:40:111
8446995031,7cyclictest12-21ksoftirqd/022:25:110
8475994933,13cyclictest28366irq/58-eth022:00:123
8475994933,13cyclictest28366irq/58-eth022:00:123
8446994941,3cyclictest26820-21diskmemload22:10:120
8475994829,9cyclictest28366irq/58-eth000:20:133
8475994820,17cyclictest28366irq/58-eth021:35:143
846699481,21cyclictest4718-21ssh00:35:132
845799481,33cyclictest17871-21ssh23:30:131
8446994838,4cyclictest8969-21ssh23:25:120
844699483,4cyclictest131rcu_preempt22:50:130
844699473,39cyclictest1223-21ssh00:15:140
846699438,26cyclictest633-21Async12:11:532
845799421,34cyclictest26794-21ssh23:35:131
846699412,21cyclictest11217-21ssh21:55:192
8466994120,7cyclictest131rcu_preempt20:30:132
847599402,20cyclictest28366irq/58-eth021:25:123
844699402,25cyclictest7704-21ssh22:30:110
845799392,27cyclictest19242-21ssh00:25:131
845799392,26cyclictest28189-21ssh00:30:121
8475993822,10cyclictest28366irq/58-eth021:10:133
8475993822,10cyclictest28366irq/58-eth021:10:133
847599381,20cyclictest28366irq/58-eth022:30:123
8475993721,11cyclictest33-21ksoftirqd/322:25:123
8466993714,18cyclictest27-21ksoftirqd/222:50:132
847599364,12cyclictest0-21swapper/322:55:153
845799362,26cyclictest20469-21tr22:00:191
845799362,26cyclictest20469-21tr22:00:191
8446993625,5cyclictest0-21swapper/023:55:130
8446993621,7cyclictest0-21swapper/019:25:120
846699352,18cyclictest6857-21ssh21:35:142
845799352,7cyclictest26820-21diskmemload23:10:131
844699354,24cyclictest10042-21ssh21:55:140
844699344,19cyclictest12-21ksoftirqd/021:35:140
847599322,19cyclictest28366irq/58-eth000:15:133
846699326,20cyclictest27-21ksoftirqd/222:25:122
846699325,16cyclictest22346irq/40-dwc2_hso19:25:122
845799322,23cyclictest23502-21ssh23:15:121
845799321,21cyclictest30228-21ssh23:55:131
844699320,23cyclictest5581-21ssh23:05:140
847599312,19cyclictest28366irq/58-eth019:40:123
847599312,17cyclictest0-21swapper/300:30:123
844699311,21cyclictest16727-21ssh22:35:130
846699304,15cyclictest1207-21sh00:15:132
846699303,18cyclictest1149-21ssh21:50:132
846699295,17cyclictest22346irq/40-dwc2_hso20:35:142
846699292,21cyclictest18267-21ssh00:24:202
845799298,10cyclictest21545-21ssh21:25:121
845799295,11cyclictest21-21ksoftirqd/122:50:151
846699286,16cyclictest0-21swapper/220:00:132
846699283,13cyclictest27881-21ssh22:05:122
846699282,20cyclictest0-21swapper/220:45:132
846699281,20cyclictest73-21kswapd022:35:042
844699284,18cyclictest4739-21ssh00:35:150
8446992812,8cyclictest3527-21diskstats23:40:150
844699281,19cyclictest24662-21ssh21:45:110
844699281,19cyclictest21295-21ssh23:50:130
847599272,18cyclictest0-21swapper/321:59:203
8475992715,7cyclictest28366irq/58-eth022:50:273
847599271,15cyclictest28366irq/58-eth023:30:113
845799272,18cyclictest29507-21ssh00:10:321
8475992614,8cyclictest28366irq/58-eth023:15:123
8475992611,10cyclictest28366irq/58-eth022:35:133
846699265,13cyclictest22346irq/40-dwc2_hso00:10:132
846699264,10cyclictest0-21swapper/219:30:112
846699262,10cyclictest0-21swapper/220:10:142
846699261,22cyclictest0-21swapper/223:25:132
845799267,4cyclictest131rcu_preempt21:18:261
845799263,17cyclictest28967-21ssh23:00:111
845799262,18cyclictest3416-21ssh23:40:151
844699262,7cyclictest131rcu_preempt19:15:120
844699262,17cyclictest10241-21ssh00:20:120
844699261,19cyclictest8244-21ssh21:53:190
846699252,8cyclictest0-21swapper/222:10:122
846699252,18cyclictest560966ssh23:05:142
846699251,11cyclictest869466ssh23:25:022
8466992511,11cyclictest0-21swapper/222:00:112
8466992511,11cyclictest0-21swapper/222:00:112
8457992513,10cyclictest0-21swapper/119:10:241
845799251,19cyclictest22232-21ssh22:20:131
8457992510,6cyclictest131rcu_preempt21:55:281
844699252,17cyclictest26820-21diskmemload22:06:190
844699251,10cyclictest16454-21ssh23:10:200
8475992410,8cyclictest28366irq/58-eth023:35:133
846699249,12cyclictest23666-21fschecks_count23:15:162
846699243,13cyclictest22346irq/40-dwc2_hso22:15:132
846699242,19cyclictest30775-21sort23:35:292
8466992411,6cyclictest1253-21ssh21:12:312
8466992411,6cyclictest1253-21ssh21:12:312
8466992411,6cyclictest10311-21ssh23:43:032
845799249,7cyclictest21-21ksoftirqd/100:04:171
845799243,4cyclictest21-21ksoftirqd/121:40:301
8457992413,3cyclictest0-21swapper/119:55:211
8457992412,7cyclictest201rcuc/121:30:121
845799241,18cyclictest32467-21ssh23:20:141
844699246,6cyclictest0-21swapper/022:15:230
847599237,11cyclictest0-21swapper/300:03:203
847599231,12cyclictest28366irq/58-eth023:45:123
846699239,11cyclictest27924-21kthreadcore22:40:202
846699239,11cyclictest12621-21apt-get20:55:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional