You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-26 - 00:33

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 May 25, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
774825441,0sleep30-21swapper/306:54:323
752423424,0sleep10-21swapper/106:51:541
750623026,0sleep00-21swapper/006:51:450
740722622,0sleep20-21swapper/206:50:352
78289960,0cyclictest0-21swapper/210:08:102
78259960,0cyclictest0-21swapper/011:40:060
78259960,0cyclictest0-21swapper/011:06:310
339960,0migration/320704-21sh12:04:183
29715060,0irq/26-eth0-rx-28421-21diskstats07:09:513
29715060,0irq/26-eth0-rx-27814-21sed09:44:553
29715060,0irq/26-eth0-rx-27269-21sensors11:24:583
29715060,0irq/26-eth0-rx-19271-21awk10:59:553
29715060,0irq/26-eth0-rx-18173-21tr11:19:523
29715060,0irq/26-eth0-rx-11019-21ssh11:34:573
149960,0migration/029675-21sh09:48:150
149960,0migration/017192-21kthreadcore11:59:530
149960,0migration/012568-21sh12:19:290
8215050,0irq/24-0000:00:6346-21cat09:14:372
8215050,0irq/24-0000:00:31625-21cat08:49:372
78289955,0cyclictest0-21swapper/212:05:462
78289955,0cyclictest0-21swapper/211:14:422
78289955,0cyclictest0-21swapper/211:14:422
78289955,0cyclictest0-21swapper/210:16:502
78289950,0cyclictest0-21swapper/211:43:142
78289950,0cyclictest0-21swapper/211:25:342
78289950,0cyclictest0-21swapper/207:59:592
78279955,0cyclictest0-21swapper/112:16:271
78279955,0cyclictest0-21swapper/111:33:151
78279955,0cyclictest0-21swapper/110:08:351
78259955,0cyclictest2048-21ssh12:09:540
78259955,0cyclictest0-21swapper/009:54:570
78259955,0cyclictest0-21swapper/009:34:550
78259950,0cyclictest0-21swapper/012:05:480
339950,0migration/37545-21kthreadcore08:54:543
339950,0migration/37091-21kthreadcore10:54:523
339950,0migration/36765-21munin-node09:14:473
339950,0migration/36292-21runrttasks09:34:413
339950,0migration/33959-21sh10:30:143
339950,0migration/331782-21kthreadcore09:49:533
339950,0migration/330523-21latency_hist09:09:373
339950,0migration/328612-21taskset12:08:533
339950,0migration/32650-21taskset07:35:513
339950,0migration/324598-21df_abs08:19:503
339950,0migration/323900-21munin-node09:24:523
339950,0migration/323113-21munin-node10:24:523
339950,0migration/323007-21munin-node10:04:513
339950,0migration/321188-21latency_hist11:44:373
339950,0migration/319703-21switchtime10:39:573
339950,0migration/319082-21kthreadcore06:59:543
339950,0migration/318690-21missed_timers11:39:533
339950,0migration/318332-21hddtemp_smartct08:14:503
339950,0migration/317355-21kthreadcore09:59:523
339950,0migration/317045-21kthreadcore12:19:543
339950,0migration/315170-21if_eth008:59:533
339950,0migration/312403-21taskset11:17:193
339950,0migration/312403-21taskset11:17:193
339950,0migration/310476-21munin-node08:29:553
29725050,0irq/27-eth0-tx-5753-21munin-node10:34:522
29725050,0irq/27-eth0-tx-4216-21ssh10:51:202
29725050,0irq/27-eth0-tx-3405-21ssh11:50:502
29725050,0irq/27-eth0-tx-29749-21munin-node11:09:562
29725050,0irq/27-eth0-tx-28439-21ssh10:25:342
29725050,0irq/27-eth0-tx-20518-21cat09:19:592
29725050,0irq/27-eth0-tx-18266-21load12:19:542
29725050,0irq/27-eth0-tx-17570-21grep10:39:522
29725050,0irq/27-eth0-tx-0-21swapper/210:45:302
29725050,0irq/27-eth0-tx-0-21swapper/210:09:542
29725050,0irq/27-eth0-tx-0-21swapper/209:49:582
29725050,0irq/27-eth0-tx-0-21swapper/209:48:572
29725050,0irq/27-eth0-tx-0-21swapper/008:34:060
29715050,0irq/26-eth0-rx-6117-21df_abs10:34:493
29715050,0irq/26-eth0-rx-2553-21kthreadcore09:29:553
29715050,0irq/26-eth0-rx-23592-21cut09:04:543
29715050,0irq/26-eth0-rx-23487-21munin-node07:54:493
29715050,0irq/26-eth0-rx-20828-21tr08:39:533
29715050,0irq/26-eth0-rx-16154-21cut09:39:533
29715050,0irq/26-eth0-rx-0-21swapper/312:17:453
29715050,0irq/26-eth0-rx-0-21swapper/312:10:433
29715050,0irq/26-eth0-rx-0-21swapper/311:53:313
29715050,0irq/26-eth0-rx-0-21swapper/311:32:173
29715050,0irq/26-eth0-rx-0-21swapper/311:04:493
29715050,0irq/26-eth0-rx-0-21swapper/310:45:113
29715050,0irq/26-eth0-rx-0-21swapper/310:19:183
29715050,0irq/26-eth0-rx-0-21swapper/310:09:483
29715050,0irq/26-eth0-rx-0-21swapper/309:56:543
29715050,0irq/26-eth0-rx-0-21swapper/309:19:533
27150,0ktimersoftd/20-21swapper/211:22:442
27150,0ktimersoftd/20-21swapper/208:33:502
259950,0migration/29611-21kthreadcore10:54:532
259950,0migration/24471-21sh11:33:202
259950,0migration/229700-21gltestperf07:34:522
259950,0migration/22681-21kthreadcore09:29:552
259950,0migration/225233-21kthreadcore11:04:542
259950,0migration/22486-21sendmail_mailst12:09:572
259950,0migration/224445-21kthreadcore07:04:542
259950,0migration/217974-21kthreadcore07:24:532
259950,0migration/216087-21kthreadcore09:39:532
259950,0migration/214160-21latency_hist08:59:372
259950,0migration/213206-21sh09:57:382
259950,0migration/212507-21kthreadcore08:09:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional