You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-13 - 10:53

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 Sun Sep 13, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
592328279,0sleep10-21swapper/118:41:161
304450460,0irq/25-eth10-21swapper/318:40:443
597824024,0sleep20-21swapper/218:41:532
583023322,0sleep00-21swapper/018:40:110
62519965,0cyclictest4612-21cut20:19:222
62469960,0cyclictest0-21swapper/123:16:261
62459960,0cyclictest0-21swapper/000:08:010
339960,0migration/39906-21sh22:06:243
339960,0migration/33784-21sh21:23:483
339960,0migration/325894-21sh22:16:353
339960,0migration/319762-21sh21:33:593
339960,0migration/315821-21sh23:53:073
29715060,0irq/26-eth0-rx-30549-21kthreadcore19:49:233
29715060,0irq/26-eth0-rx-26732-21irqstats23:19:203
149960,0migration/018122-21sh22:33:450
149960,0migration/015468-21kthreadcore19:14:210
62519955,0cyclictest5395-21kthreadcore23:24:232
62519954,0cyclictest3556-21lldpd20:29:152
62519954,0cyclictest26551-21ssh21:57:032
62469955,0cyclictest0-21swapper/123:51:261
62469955,0cyclictest0-21swapper/122:21:251
62469955,0cyclictest0-21swapper/122:10:131
62469955,0cyclictest0-21swapper/121:30:481
62459955,0cyclictest0-21swapper/023:48:470
62459950,0cyclictest0-21swapper/022:24:350
62459950,0cyclictest0-21swapper/021:42:110
62459950,0cyclictest0-21swapper/021:21:310
62459950,0cyclictest0-21swapper/000:11:380
339950,0migration/39147-21munin-node23:29:173
339950,0migration/38065-21kthreadcore21:44:223
339950,0migration/36974-21kthreadcore20:44:223
339950,0migration/36128-21kthreadcore23:04:203
339950,0migration/35150-21kthreadcore22:24:273
339950,0migration/33255-21irqrtprio22:44:223
339950,0migration/332406-21munin-node22:39:273
339950,0migration/330404-21munin-node23:39:243
339950,0migration/327344-21if_eth018:59:223
339950,0migration/326259-21taskset21:34:323
339950,0migration/32576-21aten_r1power_en19:54:173
339950,0migration/32413-21kthreadcore00:04:263
339950,0migration/323937-21kthreadcore19:19:243
339950,0migration/323545-21taskset23:57:283
339950,0migration/323121-21sh23:34:493
339950,0migration/321609-21taskset19:44:073
339950,0migration/321379-21munin-node20:04:253
339950,0migration/320578-21latency_hist20:54:043
339950,0migration/318998-21kthreadcore20:29:223
339950,0migration/315146-21timerwakeupswit19:59:293
339950,0migration/314767-21kthreadcore23:09:213
339950,0migration/313366-21fschecks_time21:09:193
339950,0migration/312572-21kthreadcore22:09:223
339950,0migration/310213-21latency_hist20:24:043
29725050,0irq/27-eth0-tx-4585-21munin-node20:44:170
29725050,0irq/27-eth0-tx-4338-21diskmemload23:43:102
29725050,0irq/27-eth0-tx-0-21swapper/222:47:552
29725050,0irq/27-eth0-tx-0-21swapper/221:19:232
29715050,0irq/26-eth0-rx-6282-21kthreadcore21:24:213
29715050,0irq/26-eth0-rx-26752-21hwlatdetect22:59:173
29715050,0irq/26-eth0-rx-24451-21sh23:59:153
29715050,0irq/26-eth0-rx-20394-21munin-node21:54:183
29715050,0irq/26-eth0-rx-18774-21python18:49:283
29715050,0irq/26-eth0-rx-15420-21latency22:49:233
29715050,0irq/26-eth0-rx-10834-21ssh21:04:353
29715050,0irq/26-eth0-rx-0-21swapper/323:24:103
29715050,0irq/26-eth0-rx-0-21swapper/322:54:203
29715050,0irq/26-eth0-rx-0-21swapper/322:33:113
29715050,0irq/26-eth0-rx-0-21swapper/322:21:483
29715050,0irq/26-eth0-rx-0-21swapper/322:01:373
29715050,0irq/26-eth0-rx-0-21swapper/321:49:173
29715050,0irq/26-eth0-rx-0-21swapper/321:15:033
29715050,0irq/26-eth0-rx-0-21swapper/321:04:043
29715050,0irq/26-eth0-rx-0-21swapper/320:57:493
29715050,0irq/26-eth0-rx-0-21swapper/320:19:203
249950,0watchdog/220026-21kthreadcore23:34:222
179950,0migration/13758-21kthreadcore00:04:261
179950,0migration/128798-21munin-node21:19:171
179950,0migration/127423-21kthreadcore22:59:201
179950,0migration/121946-21munin-node23:54:241
179950,0migration/114640-21kthreadcore21:09:231
179950,0migration/113365-21missed_timers00:09:231
169950,0watchdog/126288-21grep20:09:231
169950,0watchdog/114398-21cut20:49:231
169950,0watchdog/111810-21ssh20:47:471
149950,0migration/08148-21pmu-power19:54:260
149950,0migration/05126-21kthreadcore23:24:230
149950,0migration/05069-21kthreadcore21:44:210
149950,0migration/04690-21kthreadcore23:04:200
149950,0migration/032347-21unixbench_multi18:59:300
149950,0migration/028548-21kthreadcore23:39:220
149950,0migration/025916-21sh22:38:100
149950,0migration/025839-21latency_hist22:59:040
149950,0migration/024920-21fschecks_time23:59:170
149950,0migration/024632-21sh23:17:310
149950,0migration/019738-21latency_hist18:54:050
149950,0migration/017127-21munin-node21:49:240
149950,0migration/014894-21kthreadcore21:29:210
149950,0migration/013238-21timerwakeupswit19:09:260
149950,0migration/012494-21latency_hist20:49:040
149950,0migration/011965-21kthreadcore23:49:230
149950,0migration/011174-21aten2.4-expect22:09:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional