You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-12 - 08:43

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 #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Fri Dec 12, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5724211791,19sleep00-21swapper/019:05:230
61592115104,6sleep10-21swapper/119:05:321
6443210594,6sleep30-21swapper/319:09:113
582329981,12sleep20-21swapper/219:05:252
292312830,1sleep20-21swapper/200:35:312
182082590,1sleep00-21swapper/023:50:480
6539993717,18cyclictest0-21swapper/323:55:143
41742270,1sleep30-21swapper/323:04:253
300852250,0sleep30-21swapper/300:36:483
73492230,0sleep10-21swapper/100:14:021
6538992314,6cyclictest21222-21ssh00:27:592
239162220,1sleep10-21swapper/122:17:091
653999210,4cyclictest28728-21sh22:22:053
653899211,18cyclictest0-21swapper/219:40:132
653799210,19cyclictest0-21swapper/120:20:131
653699211,18cyclictest10022-21ssh21:30:120
653699210,19cyclictest9-21ksoftirqd/021:55:160
653999200,18cyclictest0-21swapper/320:20:133
653899200,4cyclictest0-21swapper/222:22:052
653899200,15cyclictest0-21swapper/220:31:042
6537992016,2cyclictest332250irq/24-eth122:40:121
653799200,18cyclictest0-21swapper/123:20:151
653699200,18cyclictest26135-21ssh00:00:130
6539991916,2cyclictest30467-21kworker/u8:122:29:043
653899190,2cyclictest0-21swapper/220:45:142
653899190,15cyclictest0-21swapper/221:41:042
6539991815,2cyclictest15999-21kworker/u8:000:11:043
6539991814,2cyclictest19955-21kworker/u8:100:27:043
653999181,2cyclictest0-21swapper/323:25:093
653899180,2cyclictest0-21swapper/219:27:042
653899180,13cyclictest0-21swapper/223:19:042
653899180,13cyclictest0-21swapper/221:08:042
653799180,13cyclictest0-21swapper/122:50:171
95842170,0sleep10-21swapper/122:35:251
6539991714,2cyclictest8651-21kworker/u8:223:42:043
6539991714,2cyclictest30467-21kworker/u8:122:30:043
6539991714,2cyclictest10126-21kworker/u8:222:57:043
653999170,2cyclictest22658-21apt-get19:50:053
653999170,2cyclictest0-21swapper/319:27:043
653999170,16cyclictest0-21swapper/321:53:093
653899170,2cyclictest0-21swapper/223:00:042
653899170,2cyclictest0-21swapper/222:33:042
653899170,2cyclictest0-21swapper/219:50:052
653899170,16cyclictest0-21swapper/222:48:042
653899170,16cyclictest0-21swapper/222:48:042
653899170,16cyclictest0-21swapper/221:53:042
6537991712,3cyclictest25716-21memory19:55:171
653699171,14cyclictest28772-21pzem_current00:35:240
6539991613,2cyclictest32090-21kworker/u8:221:23:043
653999161,13cyclictest6749-21munin-node3
653999161,13cyclictest5758-21fschecks_time21:25:163
653999161,13cyclictest0-21swapper/322:00:183
653999160,14cyclictest0-21swapper/322:10:243
6538991613,2cyclictest4644-21kworker/u8:121:27:042
6538991613,2cyclictest1504-21kworker/u8:200:16:042
6538991613,2cyclictest12610-21kworker/u8:021:20:012
653899160,2cyclictest0-21swapper/223:27:042
653899160,15cyclictest0-21swapper/220:53:042
653899160,15cyclictest0-21swapper/220:24:042
653699161,3cyclictest0-21swapper/022:49:480
653699161,3cyclictest0-21swapper/022:49:480
653999152,2cyclictest0-21swapper/320:01:313
653999151,2cyclictest4669-21apt-get20:25:153
6539991512,2cyclictest1681-21kworker/u8:123:39:043
653999151,12cyclictest0-21swapper/321:16:503
653999150,2cyclictest13929-21sh00:20:183
653999150,13cyclictest22753-21diskmemload22:09:343
653999150,13cyclictest22723-21ssh21:42:473
653999150,13cyclictest0-21swapper/322:48:043
653999150,13cyclictest0-21swapper/322:48:043
653999150,13cyclictest0-21swapper/320:10:053
6538991512,2cyclictest0-21swapper/221:33:582
6538991511,2cyclictest0-21swapper/222:50:182
653899150,2cyclictest0-21swapper/223:58:052
653899150,2cyclictest0-21swapper/223:53:042
653899150,2cyclictest0-21swapper/220:42:052
653899150,2cyclictest0-21swapper/219:10:042
653899150,2cyclictest0-21swapper/200:31:042
653899150,13cyclictest0-21swapper/223:34:282
653899150,13cyclictest0-21swapper/223:10:182
653899150,10cyclictest0-21swapper/222:13:042
6537991512,2cyclictest0-21swapper/119:20:271
653799151,12cyclictest26804-21iostat_ios22:20:181
6537991510,3cyclictest0-21swapper/121:36:131
653799150,13cyclictest22753-21diskmemload23:30:571
653799150,13cyclictest0-21swapper/100:19:011
653699152,8cyclictest14490-21copy23:15:010
6536991512,2cyclictest11-21rcuc/023:40:250
6536991512,2cyclictest11-21rcuc/000:17:540
6536991511,2cyclictest0-21swapper/021:12:540
6536991510,3cyclictest32114-21cat00:05:250
653699150,3cyclictest13801-21rm00:20:170
653699150,3cyclictest0-21swapper/023:25:590
653999149,3cyclictest0-21swapper/322:43:463
6539991410,2cyclictest0-21swapper/322:17:533
653999140,2cyclictest0-21swapper/321:45:043
653999140,2cyclictest0-21swapper/320:42:043
653999140,2cyclictest0-21swapper/320:30:043
653999140,2cyclictest0-21swapper/300:31:043
653999140,2cyclictest0-21swapper/300:17:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional