You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-15 - 09:54

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 #c, slot #7

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 rackcslot7s.osadl.org (updated Wed Jul 15, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
415692221400,2sleep13056-21PK-Backend21:10:101
412115721190,2sleep20-21swapper/219:25:222
186722960,3sleep20-21swapper/223:45:182
139099760,66rtkit-daemon0-21swapper/319:08:503
411394626646,14sleep10-21swapper/119:06:131
411403026444,14sleep20-21swapper/219:07:172
411273226444,14sleep00-21swapper/019:05:020
41500392480,4sleep13056-21PK-Backend20:50:131
41223662420,3sleep30-21swapper/319:30:123
41776562310,8sleep234-21ksoftirqd/222:07:222
411434399292,5cyclictest26-21ksoftirqd/123:25:001
411434399290,6cyclictest3056-21PK-Backend00:30:011
411434399290,6cyclictest3056-21PK-Backend00:30:001
411434599271,5cyclictest37142-21apt-config00:40:013
411434599270,8cyclictest21346-21apt-config23:55:013
411434399273,2cyclictest141rcu_preempt19:15:011
411434399271,7cyclictest26-21ksoftirqd/119:45:011
411434399270,6cyclictest3056-21PK-Backend00:35:001
4114345992610,5cyclictest4161168-21awk21:20:203
411434399268,8cyclictest26-21ksoftirqd/100:08:421
411434399262,2cyclictest141rcu_preempt00:40:001
411434399260,6cyclictest3056-21PK-Backend21:50:001
411434599254,6cyclictest4187672-21python322:35:203
411434599252,5cyclictest4133362-21timerandwakeup20:00:223
411434399252,4cyclictest26-21ksoftirqd/119:29:591
411434399252,2cyclictest141rcu_preempt21:55:011
411434399251,4cyclictest26-21ksoftirqd/122:45:001
411434399250,6cyclictest3056-21PK-Backend00:25:001
411434399250,6cyclictest26-21ksoftirqd/123:05:001
411434299258,7cyclictest4118124-21sshd19:18:200
411434599241,3cyclictest4158671-21apt21:15:133
411434399242,2cyclictest141rcu_preempt22:10:011
411434399241,3cyclictest26-21ksoftirqd/123:55:001
411434399240,6cyclictest3056-21PK-Backend22:15:011
187272240,4sleep3411rcuc/323:45:203
411434599233,7cyclictest4182888-21runrttasks22:22:443
4114345992316,5cyclictest886-21NetworkManager21:00:003
411434399238,4cyclictest26-21ksoftirqd/122:05:001
411434399231,4cyclictest26-21ksoftirqd/120:10:011
411434399230,6cyclictest3056-21PK-Backend20:15:001
411434399230,6cyclictest3056-21PK-Backend19:20:201
139099230,3rtkit-daemon1389-21rtkit-daemon21:57:353
139099230,15rtkit-daemon0-21swapper/223:00:122
411434599228,9cyclictest42-21ksoftirqd/300:00:123
411434599226,5cyclictest42-21ksoftirqd/323:35:183
411434599223,7cyclictest4172521-21runrttasks21:53:093
411434599223,6cyclictest4118129-21taskset19:18:243
411434599223,4cyclictest4156226-21sed21:05:223
411434599222,8cyclictest4177795-21runrttasks22:09:093
411434599222,6cyclictest4154434-21taskset21:02:043
4114345992220,1cyclictest0-21swapper/321:27:563
4114345992216,4cyclictest27748-21python300:10:213
4114345992214,6cyclictest436-20systemd-journal20:39:543
411434599221,19cyclictest873-21python322:55:213
411434599220,21cyclictest0-21swapper/322:47:323
411434499227,13cyclictest21130-21cron23:55:012
4114344992220,1cyclictest0-21swapper/221:33:572
4114344992220,1cyclictest0-21swapper/221:33:572
4114344992220,1cyclictest0-21swapper/220:25:032
4114344992220,1cyclictest0-21swapper/220:06:092
4114344992220,1cyclictest0-21swapper/200:03:432
4114344992218,3cyclictest4169077-21systemd-veritys21:44:472
411434399224,2cyclictest141rcu_preempt23:15:011
411434399223,6cyclictest26-21ksoftirqd/123:55:221
411434399223,2cyclictest141rcu_preempt21:40:001
411434399221,8cyclictest26-21ksoftirqd/123:35:011
4114343992211,3cyclictest26-21ksoftirqd/122:18:501
4114343992210,4cyclictest26-21ksoftirqd/121:41:571
411434399220,5cyclictest3056-21PK-Backend19:56:441
411434399220,4cyclictest26-21ksoftirqd/123:00:011
4114342992220,1cyclictest0-21swapper/022:26:260
411434599215,5cyclictest42-21ksoftirqd/322:04:453
411434599213,6cyclictest3351-21runrttasks23:02:583
411434599213,5cyclictest4157675-21ntp_states21:10:203
4114345992119,1cyclictest0-21swapper/323:29:513
4114345992119,1cyclictest0-21swapper/323:29:503
4114345992119,1cyclictest0-21swapper/323:16:253
4114345992119,1cyclictest0-21swapper/322:10:563
4114345992119,1cyclictest0-21swapper/320:31:593
4114345992119,1cyclictest0-21swapper/300:30:333
4114345992119,1cyclictest0-21swapper/300:28:033
4114345992119,1cyclictest0-21swapper/300:28:033
411434599211,5cyclictest0-21swapper/323:55:133
4114345992113,6cyclictest4511-21ntpq23:05:193
4114345992113,6cyclictest4189944-21sshd22:44:233
411434599211,18cyclictest4120015-21perf19:25:013
411434599210,20cyclictest0-21swapper/323:43:013
411434599210,20cyclictest0-21swapper/322:15:553
411434599210,20cyclictest0-21swapper/300:22:293
4114344992119,1cyclictest0-21swapper/223:41:532
4114344992119,1cyclictest0-21swapper/223:26:462
4114344992119,1cyclictest0-21swapper/223:26:452
4114344992119,1cyclictest0-21swapper/222:20:272
4114344992119,1cyclictest0-21swapper/221:56:342
4114344992119,1cyclictest0-21swapper/221:06:462
4114344992119,1cyclictest0-21swapper/220:49:432
4114344992119,1cyclictest0-21swapper/220:37:332
4114344992119,1cyclictest0-21swapper/220:15:362
4114344992119,1cyclictest0-21swapper/219:51:302
4114344992119,1cyclictest0-21swapper/219:49:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional