You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-15 - 21:53

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 Fri May 15, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450360,0irq/25-eth10-21swapper/306:55:093
857723423,0sleep00-21swapper/006:53:310
846923329,0sleep10-21swapper/106:52:161
310423329,0sleep20-21swapper/206:50:492
88269980,0cyclictest0-21swapper/211:41:332
88269980,0cyclictest0-21swapper/211:08:082
29715070,0irq/26-eth0-rx-19675-21kthreadcore11:20:503
88269966,0cyclictest7134-21diskmemload09:26:272
88269966,0cyclictest0-21swapper/209:37:102
35160,0ktimersoftd/30-21swapper/310:41:063
339960,0migration/36556-21sh10:13:283
339960,0migration/36261-21sh11:35:273
339960,0migration/331389-21sh09:09:573
339960,0migration/322038-21sh10:01:033
339960,0migration/315459-21sh09:19:323
339960,0migration/315121-21sh09:00:133
339960,0migration/314294-21sh10:38:163
339960,0migration/313822-21sh10:16:073
29725060,0irq/27-eth0-tx-4321-21munin-node07:40:520
29725060,0irq/27-eth0-tx-31041-21munin-node08:00:500
29725060,0irq/27-eth0-tx-15712-21munin-node07:00:520
29715060,0irq/26-eth0-rx-3740-21kthreadcore09:30:503
29715060,0irq/26-eth0-rx-32496-21cut11:10:503
29715060,0irq/26-eth0-rx-21083-21unixbench-2d11:00:573
149960,0migration/03929-21sh09:10:500
149960,0migration/030867-21sh09:47:460
149960,0migration/021864-21sh10:00:550
149960,0migration/014235-21sh10:17:200
88269955,0cyclictest0-21swapper/211:45:392
88269955,0cyclictest0-21swapper/211:28:092
88269955,0cyclictest0-21swapper/210:27:082
88269955,0cyclictest0-21swapper/209:22:582
88269950,0cyclictest0-21swapper/212:03:572
88269950,0cyclictest0-21swapper/210:49:222
88269950,0cyclictest0-21swapper/210:23:032
88269950,0cyclictest0-21swapper/210:04:262
88269950,0cyclictest0-21swapper/209:45:122
88269950,0cyclictest0-21swapper/209:32:352
88259955,0cyclictest0-21swapper/110:28:491
88259954,0cyclictest16410-21awk09:00:491
88249955,0cyclictest0-21swapper/009:02:170
88249950,0cyclictest7134-21diskmemload09:59:210
4150,0ktimersoftd/00-21swapper/010:21:560
35150,0ktimersoftd/30-21swapper/310:21:563
339950,0migration/36659-21kthreadcore07:40:513
339950,0migration/33448-21munin-node12:10:493
339950,0migration/332753-21munin-node08:25:483
339950,0migration/329701-21runrttasks10:46:193
339950,0migration/324991-21fschecks_time09:25:463
339950,0migration/323071-21taskset07:30:133
339950,0migration/323018-21sh09:43:243
339950,0migration/322825-21df_abs12:05:483
339950,0migration/320378-21kthreadcore09:20:513
339950,0migration/319626-21latency_hist08:40:343
339950,0migration/317709-21taskset07:50:423
339950,0migration/315111-21munin-node12:20:463
339950,0migration/31378-21kthreadcore11:50:503
339950,0migration/313287-21cpuspeed_turbos08:35:463
339950,0migration/312803-21taskset11:36:023
339950,0migration/312531-21sh11:56:013
339950,0migration/310775-21gltestperf07:20:483
29725050,0irq/27-eth0-tx-552-21munin-node08:50:490
29725050,0irq/27-eth0-tx-12017-21munin-node08:10:490
29725050,0irq/27-eth0-tx-0-21swapper/007:05:480
29715050,0irq/26-eth0-rx-32752-21hwlatdetect09:10:473
29715050,0irq/26-eth0-rx-30331-21ssh10:06:493
29715050,0irq/26-eth0-rx-22696-21cat11:25:333
29715050,0irq/26-eth0-rx-1354-21kthreadcore10:50:503
29715050,0irq/26-eth0-rx-0-21swapper/312:17:483
29715050,0irq/26-eth0-rx-0-21swapper/311:42:573
29715050,0irq/26-eth0-rx-0-21swapper/311:07:043
29715050,0irq/26-eth0-rx-0-21swapper/310:58:083
29715050,0irq/26-eth0-rx-0-21swapper/310:30:513
29715050,0irq/26-eth0-rx-0-21swapper/310:26:503
29715050,0irq/26-eth0-rx-0-21swapper/309:46:293
29715050,0irq/26-eth0-rx-0-21swapper/309:00:453
29715050,0irq/26-eth0-rx-0-21swapper/307:05:523
179950,0migration/18011-21fschecks_time10:35:451
179950,0migration/132012-21aten_r1power_en08:25:451
179950,0migration/116689-21idleruntime10:00:461
179950,0migration/115884-21kthreadcore12:00:511
169950,0watchdog/17118-21ssh09:33:561
169950,0watchdog/11205-21fschecks_time08:50:481
149950,0migration/09954-21kthreadcore09:35:490
149950,0migration/09486-21kthreadcore09:15:500
149950,0migration/07463-21kernelversion12:15:480
149950,0migration/07139-21idleruntime08:30:480
149950,0migration/07052-21taskset09:54:070
149950,0migration/06005-21taskset08:29:580
149950,0migration/05755-21switchtime09:30:560
149950,0migration/04230-21kthreadcore10:10:500
149950,0migration/04161-21switchtime11:50:560
149950,0migration/032281-21kthreadcore12:10:480
149950,0migration/031648-21taskset09:29:310
149950,0migration/031172-21turbostat10:50:330
149950,0migration/029855-21timerwakeupswit10:05:560
149950,0migration/026416-21kthreadcore11:05:500
149950,0migration/026207-21kthreadcore11:25:500
149950,0migration/022114-21kthreadcore07:50:510
149950,0migration/022031-21switchtime09:20:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional