You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-09 - 20:42

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 Mon Mar 09, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26606996238,11cyclictest28366irq/58-eth011:00:133
26599995637,14cyclictest6347-21apt-get08:30:112
2660699503,31cyclictest28366irq/58-eth009:35:133
26599995039,7cyclictest14699-21apt-get08:05:102
2658299501,41cyclictest0-21swapper/010:15:130
26599994828,16cyclictest0-21swapper/209:40:132
2658299471,33cyclictest22437-21ssh10:45:130
2659999461,39cyclictest0-21swapper/211:45:122
26599994533,9cyclictest29106-21apt-get08:20:122
2658299452,39cyclictest6321-21apt-get11:30:140
2658299451,41cyclictest0-21swapper/008:20:120
2658299442,37cyclictest25575-21apt-get09:35:130
2658299440,26cyclictest13621-21/usr/sbin/munin12:10:160
26599994321,16cyclictest15338-21ssh11:35:122
26599994319,16cyclictest0-21swapper/210:50:142
26599994315,9cyclictest10909-21ssh11:14:352
26599994315,10cyclictest15575-21ssh12:28:222
26599994314,23cyclictest0-21swapper/212:30:542
2658299430,27cyclictest2311-21ssh12:39:450
2658299430,27cyclictest2311-21ssh12:39:450
26599994236,2cyclictest11682-21apt-get11:15:152
26599994228,10cyclictest3002-21apt-get09:00:122
26599994226,13cyclictest20376-21apt-get09:50:142
26599994226,13cyclictest20376-21apt-get09:50:132
2658299421,37cyclictest0-21swapper/010:20:130
26599994136,2cyclictest9961-21apt-get11:50:132
26599994127,9cyclictest4622-21apt-get12:05:112
26599994119,17cyclictest0-21swapper/210:45:132
2658299411,24cyclictest0-21swapper/012:28:170
26599994030,8cyclictest6323-21ssh11:30:132
26599994022,15cyclictest29731-21ssh11:25:132
26599994022,15cyclictest0-21swapper/208:15:132
26599994022,15cyclictest0-21swapper/208:15:132
26599994016,21cyclictest0-21swapper/209:05:132
26599994015,20cyclictest0-21swapper/210:20:132
26599994010,25cyclictest19870-21sh12:12:092
2658299401,36cyclictest16485-21apt-get09:30:130
2658299401,34cyclictest0-21swapper/009:05:130
2658299401,25cyclictest14645-21ssh10:57:310
2658299400,24cyclictest21049-21ssh10:06:510
2660699394,27cyclictest28366irq/58-eth008:25:133
2660699393,24cyclictest28366irq/58-eth012:30:123
26599993915,8cyclictest29104-21ssh09:18:262
2659099394,10cyclictest131rcu_preempt07:20:111
2658299391,33cyclictest0-21swapper/007:40:120
2658299390,35cyclictest15332-21apt-get11:35:130
2658299390,34cyclictest28111-21ssh12:00:150
2658299390,26cyclictest961-21ssh11:08:180
2658299390,26cyclictest29842-21ssh11:41:130
2660699384,21cyclictest28366irq/58-eth009:25:123
2660699384,21cyclictest28366irq/58-eth009:25:113
2660699384,19cyclictest28366irq/58-eth012:15:123
2659999388,19cyclictest0-21swapper/212:00:122
26599993829,6cyclictest0-21swapper/210:15:112
26599993823,9cyclictest16496-21ssh09:30:132
2658299381,35cyclictest0-21swapper/009:55:130
2658299381,33cyclictest0-21swapper/007:55:110
2658299381,32cyclictest11702-21ssh11:15:150
2658299381,24cyclictest29694-21ssh12:18:030
2658299381,23cyclictest0-21swapper/011:01:260
2658299380,30cyclictest2538-21nfs4_client07:15:220
2660699373,24cyclictest28366irq/58-eth007:50:113
26599993728,6cyclictest22346irq/40-dwc2_hso07:40:132
26599993722,7cyclictest30708-21cut09:55:202
26599993721,12cyclictest0-21swapper/209:35:122
26599993718,17cyclictest0-21swapper/209:45:122
26599993716,17cyclictest585-21kthreadcore09:20:212
26599993715,17cyclictest9894-21kthreadcore10:55:212
2658299374,18cyclictest16089-21cron09:30:010
2658299374,18cyclictest16089-21cron09:30:000
26582993720,12cyclictest0-21swapper/011:25:140
2658299371,32cyclictest21725-21apt-get09:15:120
2658299371,31cyclictest0-21swapper/011:50:120
2658299371,27cyclictest0-21swapper/012:31:570
2658299371,24cyclictest24188-21wc08:45:220
2658299370,22cyclictest4590-21ssh12:21:010
2660699364,17cyclictest28366irq/58-eth011:55:123
2660699363,25cyclictest28366irq/58-eth010:45:133
26599993620,8cyclictest16086-21apt08:40:122
26599993619,12cyclictest22346irq/40-dwc2_hso07:55:102
26599993613,13cyclictest0-21swapper/212:17:402
26599993611,17cyclictest0-21swapper/211:08:532
2659099361,30cyclictest9992-21ssh11:50:131
2658299362,31cyclictest13362-21apt-get10:40:140
2658299361,31cyclictest31534-21apt-get10:50:130
2658299361,21cyclictest0-21swapper/009:47:180
2658299361,20cyclictest7648-21ssh11:10:390
26599993518,13cyclictest15743-21sshd08:39:082
26599993516,15cyclictest30430-21unixbench_singl12:35:292
26599993516,15cyclictest30430-21unixbench_singl12:35:282
26599993513,9cyclictest7499-21sh12:24:302
2658299351,30cyclictest26751-21apt-get07:10:120
2658299351,21cyclictest26650-21sh09:52:110
2658299351,21cyclictest26650-21sh09:52:110
2658299350,24cyclictest28718-21kthreadcore08:50:220
2658299350,22cyclictest31080-21rm10:13:040
2658299350,21cyclictest12359-21diskmemload12:07:120
26606993413,11cyclictest28366irq/58-eth012:25:133
26599993423,8cyclictest13635-21sed08:00:302
26599993423,7cyclictest24097-21apt-get10:10:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional