You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-07 - 07:34

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 #1, slot #2

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 rack1slot2s.osadl.org (updated Mon Sep 07, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450790,0irq/25-eth10-21swapper/318:40:293
1035024746,0sleep00-21swapper/018:41:250
1053823728,0sleep10-21swapper/118:43:381
1059923523,0sleep20-21swapper/218:44:192
339970,0migration/322199-21sh22:11:303
339960,0migration/330292-21sh21:55:083
339960,0migration/330287-21munin-node21:34:583
339960,0migration/319998-21sh00:14:293
339960,0migration/318344-21irqcore21:09:553
29715060,0irq/26-eth0-rx-4326-21ssh23:00:153
27160,0ktimersoftd/20-21swapper/222:04:292
149960,0migration/05697-21sh22:21:110
149960,0migration/024002-21sh21:33:350
149960,0migration/02385-21timerandwakeup00:00:010
149960,0migration/012088-21sh00:09:290
149960,0migration/012041-21sh23:25:550
106979960,0cyclictest14584-21sensors_volt21:25:042
106969960,0cyclictest0-21swapper/121:04:301
106969960,0cyclictest0-21swapper/119:10:021
106959960,0cyclictest0-21swapper/023:35:060
4150,0ktimersoftd/00-21swapper/020:56:300
339950,0migration/35484-21kthreadcore20:14:573
339950,0migration/3484-21aten_r1power_en19:49:503
339950,0migration/332235-21kthreadcore18:59:563
339950,0migration/330759-21idleruntime23:19:523
339950,0migration/328877-21latency22:14:583
339950,0migration/328422-21latency22:34:583
339950,0migration/327715-21munin-node23:14:593
339950,0migration/325071-21latency_hist20:54:393
339950,0migration/323964-21kthreadcore22:54:553
339950,0migration/323501-21unixbench_multi18:50:023
339950,0migration/323279-21sh20:50:103
339950,0migration/322870-21taskset21:51:493
339950,0migration/321677-21taskset23:14:333
339950,0migration/318460-21latency_hist19:14:393
339950,0migration/316297-21kthreadcore23:49:553
339950,0migration/31434-21fschecks_time21:19:533
339950,0migration/313725-21aten2.4-expect23:29:513
29725050,0irq/27-eth0-tx-6215-21munin-node19:30:010
29725050,0irq/27-eth0-tx-28542-21unixbench_multi22:55:022
29725050,0irq/27-eth0-tx-25223-21munin-node19:20:010
29725050,0irq/27-eth0-tx-19818-21python23:10:002
29725050,0irq/27-eth0-tx-16152-21munin-node21:49:552
29725050,0irq/27-eth0-tx-0-21swapper/020:44:570
29725050,0irq/27-eth0-tx-0-21swapper/019:05:030
29715050,0irq/26-eth0-rx-9185-21kthreadcore22:04:563
29715050,0irq/26-eth0-rx-6559-21runrttasks22:43:123
29715050,0irq/26-eth0-rx-5780-21kernelversion00:04:553
29715050,0irq/26-eth0-rx-31631-21ssh21:15:513
29715050,0irq/26-eth0-rx-17619-21kthreadcore22:29:543
29715050,0irq/26-eth0-rx-11511-21cut19:54:583
29715050,0irq/26-eth0-rx-10352-21kthreadcore20:19:563
29715050,0irq/26-eth0-rx-0-21swapper/323:59:593
29715050,0irq/26-eth0-rx-0-21swapper/323:55:413
29715050,0irq/26-eth0-rx-0-21swapper/323:43:423
29715050,0irq/26-eth0-rx-0-21swapper/323:04:543
29715050,0irq/26-eth0-rx-0-21swapper/322:19:463
29715050,0irq/26-eth0-rx-0-21swapper/321:32:293
29715050,0irq/26-eth0-rx-0-21swapper/321:25:003
29715050,0irq/26-eth0-rx-0-21swapper/321:04:423
29715050,0irq/26-eth0-rx-0-21swapper/320:59:563
29715050,0irq/26-eth0-rx-0-21swapper/320:34:513
29715050,0irq/26-eth0-rx-0-21swapper/319:45:233
29715050,0irq/26-eth0-rx-0-21swapper/319:34:583
249950,0watchdog/220790-21kthreadcore20:49:572
249950,0watchdog/211038-21kthreadcore19:29:572
19150,0ktimersoftd/10-21swapper/123:03:411
179950,0migration/17787-21taskset20:18:021
179950,0migration/16450-21runrttasks21:40:111
179950,0migration/1445-21aten_r1power_cu19:49:501
179950,0migration/128719-21pmu-power22:35:001
179950,0migration/128616-21unixbench_singl22:55:021
179950,0migration/127242-21kthreadcore21:14:571
179950,0migration/116206-21kthreadcore23:09:551
179950,0migration/115252-21taskset22:09:291
149950,0migration/0988-21aten_r1power_en20:59:500
149950,0migration/0925-21kthreadcore18:59:560
149950,0migration/08394-21kthreadcore22:44:570
149950,0migration/0626-21kthreadcore22:59:550
149950,0migration/05888-21missed_timers19:49:570
149950,0migration/04969-21kthreadcore20:39:550
149950,0migration/03808-21kthreadcore20:14:560
149950,0migration/032577-21taskset19:48:470
149950,0migration/025575-21kthreadcore22:14:560
149950,0migration/024962-21needreboot19:39:580
149950,0migration/024352-21kthreadcore23:14:550
149950,0migration/022606-21netstat20:49:580
149950,0migration/017159-21kthreadcore22:49:560
149950,0migration/016390-21kthreadcore23:29:560
149950,0migration/016051-21kthreadcore19:34:580
149950,0migration/01492-21kthreadcore19:24:550
149950,0migration/01490-21kernelversion21:39:550
149950,0migration/014468-21fschecks_time19:59:520
149950,0migration/014163-21kthreadcore19:09:560
149950,0migration/013488-21missed_timers20:19:580
149950,0migration/011479-21ksmtuned23:45:500
106979955,0cyclictest0-21swapper/222:37:442
106979954,0cyclictest3514-21snmpd23:31:012
106979954,0cyclictest3514-21snmpd20:15:452
106979954,0cyclictest3514-21snmpd19:26:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional