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2025-05-09 - 05:50

OSADL QA Farm on Real-time of Mainline Linux

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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 
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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 09, 2025 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291350440,0irq/25-eth10-21swapper/318:46:563
3206223329,0sleep20-21swapper/218:46:552
3192023322,0sleep00-21swapper/018:45:170
3189823228,0sleep10-21swapper/118:45:021
321329970,0cyclictest0-21swapper/023:27:080
339960,0migration/37964-21sh23:12:593
339960,0migration/34025-21runrttasks21:50:113
339960,0migration/324456-21sh23:02:353
339960,0migration/321774-21sh21:21:263
339960,0migration/31999-21munin-node19:12:143
339960,0migration/317947-21sh23:01:513
339960,0migration/31202-21runrttasks23:11:443
321399965,0cyclictest2954-21sed19:37:122
321339965,0cyclictest21415-21ps23:02:171
321339960,0cyclictest30211-21diskmemload23:32:251
321339960,0cyclictest0-21swapper/122:37:141
28415060,0irq/27-eth0-tx-9091-21ssh23:16:352
28415060,0irq/27-eth0-tx-32532chrt21:47:492
28415060,0irq/27-eth0-tx-0-21swapper/223:51:482
28415060,0irq/27-eth0-tx-0-21swapper/223:27:552
28415060,0irq/27-eth0-tx-0-21swapper/223:22:562
28415060,0irq/27-eth0-tx-0-21swapper/223:17:082
28415060,0irq/27-eth0-tx-0-21swapper/222:53:462
28415060,0irq/27-eth0-tx-0-21swapper/222:31:462
28415060,0irq/27-eth0-tx-0-21swapper/222:24:312
28415060,0irq/27-eth0-tx-0-21swapper/222:13:532
28415060,0irq/27-eth0-tx-0-21swapper/221:38:222
28415060,0irq/27-eth0-tx-0-21swapper/221:35:252
28415060,0irq/27-eth0-tx-0-21swapper/221:18:432
28415060,0irq/27-eth0-tx-0-21swapper/221:06:162
28415060,0irq/27-eth0-tx-0-21swapper/220:52:192
28415060,0irq/27-eth0-tx-0-21swapper/200:12:492
28405060,0irq/26-eth0-rx-1812-21tr21:07:153
28405060,0irq/26-eth0-rx-17696-21perl20:37:113
249960,0watchdog/213443-21kthreadcore19:42:152
249960,0watchdog/20-21swapper/221:22:192
249960,0watchdog/20-21swapper/220:49:072
149960,0migration/014388-21sh23:59:570
149960,0migration/013802-21fschecks_count18:57:070
339950,0migration/39598-21aten_r1power_po23:17:093
339950,0migration/37767-21kthreadcore21:32:173
339950,0migration/36498-21rt-features23:32:183
339950,0migration/36366-21taskset18:51:323
339950,0migration/331830-21latency19:07:153
339950,0migration/330391-21cpuspeed_turbos21:27:123
339950,0migration/330070-21fschecks_time20:22:123
339950,0migration/329224-21kthreadcore22:27:143
339950,0migration/326904-21missed_timers21:42:173
339950,0migration/326459-21kthreadcore23:47:153
339950,0migration/32514-21taskset20:01:453
339950,0migration/324537-21kthreadcore19:52:133
339950,0migration/323320-21idleruntime21:02:173
339950,0migration/322226-21aten_r1power_cu21:22:083
339950,0migration/319880-21aten_r1power_fr22:22:093
339950,0migration/313585-21munin-node21:57:093
339950,0migration/313580-21munin-node19:17:193
339950,0migration/31255-21taskset19:33:473
339950,0migration/31173-21taskset22:49:023
321399950,0cyclictest0-21swapper/222:02:302
321339955,0cyclictest0-21swapper/122:13:161
321339955,0cyclictest0-21swapper/121:55:271
321339950,0cyclictest0-21swapper/123:15:321
321339950,0cyclictest0-21swapper/122:59:371
321329955,0cyclictest0-21swapper/020:58:470
321329955,0cyclictest0-21swapper/019:37:070
321329955,0cyclictest0-21swapper/000:06:140
28415050,0irq/27-eth0-tx-9486-21munin-node20:07:110
28415050,0irq/27-eth0-tx-6372-21iceccd20:12:280
28415050,0irq/27-eth0-tx-32290-21ssh23:07:372
28415050,0irq/27-eth0-tx-28485-21munin-node19:57:070
28415050,0irq/27-eth0-tx-23783-21munin-node20:42:100
28415050,0irq/27-eth0-tx-22885-21munin-node00:07:112
28415050,0irq/27-eth0-tx-11073-21munin-node22:37:082
28415050,0irq/27-eth0-tx-0-21swapper/223:37:052
28415050,0irq/27-eth0-tx-0-21swapper/223:32:142
28415050,0irq/27-eth0-tx-0-21swapper/223:02:372
28415050,0irq/27-eth0-tx-0-21swapper/222:47:202
28415050,0irq/27-eth0-tx-0-21swapper/222:43:052
28415050,0irq/27-eth0-tx-0-21swapper/222:32:232
28415050,0irq/27-eth0-tx-0-21swapper/222:18:122
28415050,0irq/27-eth0-tx-0-21swapper/222:08:142
28415050,0irq/27-eth0-tx-0-21swapper/220:57:182
28405050,0irq/26-eth0-rx-3144-21ssh22:32:043
28405050,0irq/26-eth0-rx-22375-21ssh00:06:073
28405050,0irq/26-eth0-rx-16290-21kthreadcore19:22:143
28405050,0irq/26-eth0-rx-12964-21ps22:17:133
28405050,0irq/26-eth0-rx-0-21swapper/323:42:543
28405050,0irq/26-eth0-rx-0-21swapper/322:42:153
28405050,0irq/26-eth0-rx-0-21swapper/322:37:193
28405050,0irq/26-eth0-rx-0-21swapper/322:12:123
28405050,0irq/26-eth0-rx-0-21swapper/321:54:143
28405050,0irq/26-eth0-rx-0-21swapper/320:57:153
28405050,0irq/26-eth0-rx-0-21swapper/320:47:093
259950,0migration/25304-21munin-node18:47:142
249950,0watchdog/240212sleep221:27:312
249950,0watchdog/20-21swapper/223:57:312
249950,0watchdog/20-21swapper/223:55:072
249950,0watchdog/20-21swapper/223:46:112
249950,0watchdog/20-21swapper/222:58:232
249950,0watchdog/20-21swapper/222:01:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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