You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-16 - 20:56

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 Thu Apr 16, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8150996743,16cyclictest35966irq/58-eth010:30:153
812699648,11cyclictest131rcu_preempt09:05:131
811699574,7cyclictest131rcu_preempt08:40:120
811699521,43cyclictest19349-21ssh10:00:110
8126994910,27cyclictest22677-21ssh11:50:141
8116994835,5cyclictest26118-21diskmemload11:45:130
811699481,35cyclictest24733-21ssh09:45:120
815099463,30cyclictest35966irq/58-eth012:25:113
813599462,36cyclictest1355-21wc09:30:252
812699455,34cyclictest6666-21ssh11:05:131
815099434,25cyclictest35966irq/58-eth009:45:133
811699432,29cyclictest8362-21ssh12:00:130
811699431,33cyclictest28413-21ssh10:05:130
815099425,23cyclictest35966irq/58-eth009:40:123
815099421,37cyclictest0-21swapper/310:05:143
813599423,21cyclictest24605-21ssh11:15:122
813599421,37cyclictest20977-21ssh09:25:122
811699423,26cyclictest15689-21ssh09:40:120
811699421,28cyclictest13409-21ssh12:37:560
811699413,30cyclictest26529-21ssh09:10:130
811699411,35cyclictest22708-21apt-get07:25:110
811699411,31cyclictest30016-21ssh12:30:120
815099402,25cyclictest35966irq/58-eth009:35:133
812699401,31cyclictest2971-21ssh10:45:141
811699401,33cyclictest8280-21apt-get07:10:110
812699391,31cyclictest11942-21ssh09:20:131
811699391,35cyclictest0-21swapper/010:50:140
811699391,34cyclictest0-21swapper/008:25:120
811699391,34cyclictest0-21swapper/007:20:120
811699391,29cyclictest16732-21ssh10:34:400
811699391,22cyclictest21129-21ssh12:05:280
813599389,21cyclictest27-21ksoftirqd/212:00:132
811699381,21cyclictest28297-21ntpq11:15:250
811699380,28cyclictest26118-21diskmemload10:26:580
811699380,25cyclictest8514-21ssh12:16:190
811699380,25cyclictest8514-21ssh12:16:190
811699380,24cyclictest26118-21diskmemload11:57:080
815099371,34cyclictest0-21swapper/311:20:143
811699378,21cyclictest12-21ksoftirqd/009:25:110
811699372,30cyclictest0-21swapper/009:30:110
8116993714,18cyclictest0-21swapper/007:40:120
811699371,33cyclictest5853-21apt-get08:15:120
811699371,33cyclictest0-21swapper/009:00:100
811699371,31cyclictest0-21swapper/009:35:150
811699371,20cyclictest5255-21cat08:10:300
811699371,19cyclictest4907-21apt-get10:10:120
811699370,25cyclictest10197-21ssh11:41:210
815099361,32cyclictest0-21swapper/310:50:143
813599363,23cyclictest261rcuc/209:00:102
812699364,28cyclictest26362-21ssh12:10:121
811699361,31cyclictest21532-21apt-get09:05:130
811699361,31cyclictest0-21swapper/011:25:140
811699361,21cyclictest17092-21ssh12:20:480
811699360,25cyclictest24926-21ssh10:38:420
815099352,22cyclictest35966irq/58-eth008:05:133
812699356,25cyclictest131rcu_preempt12:20:141
812699353,23cyclictest30031-21ssh12:30:131
811699352,28cyclictest0-21swapper/010:20:120
811699351,31cyclictest0-21swapper/009:50:100
811699351,30cyclictest15665-21ssh11:10:130
811699351,22cyclictest11305-21rm10:49:450
811699351,17cyclictest23654-21ntp_192.168.11408:30:240
811699350,21cyclictest26118-21diskmemload11:09:560
815099347,14cyclictest35966irq/58-eth010:25:133
815099341,27cyclictest0-21swapper/312:30:123
813599342,17cyclictest9259-21cut09:35:212
811699346,15cyclictest0-21swapper/009:55:380
8116993416,14cyclictest0-21swapper/009:15:130
811699341,30cyclictest0-21swapper/010:55:140
811699341,29cyclictest4861-21/usr/sbin/munin11:20:270
811699341,28cyclictest0-21swapper/008:00:110
811699341,19cyclictest2247-21ssh11:37:330
811699341,18cyclictest19583-21ssh10:16:310
815099330,31cyclictest35966irq/58-eth010:55:153
812699334,20cyclictest21-21ksoftirqd/107:10:131
8126993325,4cyclictest0-21swapper/109:10:121
811699335,25cyclictest30061-21ssh11:00:140
8116993317,11cyclictest0-21swapper/010:40:140
811699331,29cyclictest18225-21ssh09:22:110
811699331,28cyclictest0-21swapper/007:45:130
811699331,21cyclictest14931-21kthreadcore07:15:200
815099322,16cyclictest35966irq/58-eth011:35:143
815099321,27cyclictest0-21swapper/309:20:133
8135993221,7cyclictest261rcuc/210:50:152
813599321,23cyclictest628-21tcf-agent08:15:122
811699321,27cyclictest3286-21grep08:45:190
811699321,26cyclictest2435-21ssh12:14:490
815099313,17cyclictest35966irq/58-eth009:15:133
813599313,21cyclictest0-21swapper/208:40:132
8126993124,4cyclictest630-21Async09:36:311
812699312,26cyclictest30059-21rm11:00:141
812699312,22cyclictest1198-21ssh11:20:141
811699311,28cyclictest27073-21ssh11:34:120
811699311,27cyclictest10661-21sendmail_mailqu08:50:270
811699311,27cyclictest0-21swapper/008:55:120
811699311,27cyclictest0-21swapper/007:35:130
811699311,26cyclictest19849-21grep07:55:200
811699311,25cyclictest22665-21apt-get11:50:120
811699310,20cyclictest25724-21kthreadcore08:35:190
813599304,17cyclictest27346irq/40-dwc2_hso10:30:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional