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2024-11-10 - 20:43

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 Sun Nov 10, 2024 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2766326362,0sleep10-21swapper/106:50:571
2757024635,0sleep30-21swapper/306:49:513
2763823924,0sleep00-21swapper/006:50:400
2786323626,0sleep20-21swapper/206:53:182
27948991414,0cyclictest6445-21snmpd09:25:112
28415070,0irq/27-eth0-tx-0-21swapper/210:49:112
28415070,0irq/27-eth0-tx-0-21swapper/007:53:370
339960,0migration/37615-21sh09:19:143
339960,0migration/330275-21sh11:56:153
339960,0migration/327091-21kthreadcore10:13:403
339960,0migration/325889-21munin-node09:33:363
339960,0migration/31642-21kthreadcore09:58:393
339960,0migration/314967-21sh09:45:563
339960,0migration/313909-21sh11:05:463
339960,0migration/313211-21kthreadcore07:28:413
339960,0migration/31307-21munin-node09:38:393
28415060,0irq/27-eth0-tx-15610-21munin-node10:08:432
28415060,0irq/27-eth0-tx-14266-21ssh11:46:472
28415060,0irq/27-eth0-tx-0-21swapper/212:20:482
28415060,0irq/27-eth0-tx-0-21swapper/211:58:012
28415060,0irq/27-eth0-tx-0-21swapper/211:38:172
28415060,0irq/27-eth0-tx-0-21swapper/211:30:392
28415060,0irq/27-eth0-tx-0-21swapper/210:57:022
28415060,0irq/27-eth0-tx-0-21swapper/210:45:292
28415060,0irq/27-eth0-tx-0-21swapper/210:43:042
28415060,0irq/27-eth0-tx-0-21swapper/210:29:142
28415060,0irq/27-eth0-tx-0-21swapper/209:57:402
28415060,0irq/27-eth0-tx-0-21swapper/209:15:532
28415060,0irq/27-eth0-tx-0-21swapper/208:58:072
28415060,0irq/27-eth0-tx-0-21swapper/007:59:550
28405060,0irq/26-eth0-rx-20990-21sensors_volt12:08:473
28405060,0irq/26-eth0-rx-15943-21df10:08:373
28405060,0irq/26-eth0-rx-13393-21sh12:04:113
28405060,0irq/26-eth0-rx-0-21swapper/311:08:393
279489960,0cyclictest0-21swapper/212:01:262
279489960,0cyclictest0-21swapper/210:34:532
279489960,0cyclictest0-21swapper/207:38:372
279389960,0cyclictest6145-21ssh10:21:120
249960,0watchdog/20-21swapper/211:10:532
149960,0migration/07368-21latency_hist10:03:230
149960,0migration/022544-21sh09:49:450
149960,0migration/015672-21timerandwakeup09:03:450
149960,0migration/014684-21sh10:48:060
149960,0migration/014137-21sh11:46:250
149960,0migration/013907-21sh10:25:230
149960,0migration/011805-21missed_timers08:38:420
8225050,0irq/24-0000:00:31159-21cat11:18:222
339950,0migration/39805-21kthreadcore08:38:413
339950,0migration/39766-21kthreadcore10:03:423
339950,0migration/39158-21kthreadcore11:23:403
339950,0migration/35677-21munin-node07:48:383
339950,0migration/331548-21cpuspeed_turbos11:18:343
339950,0migration/331206-21munin-node10:38:333
339950,0migration/330570-21munin-node08:03:483
339950,0migration/32993-21kthreadcore08:33:403
339950,0migration/328598-21missed_timers10:33:413
339950,0migration/327682-21kthreadcore12:13:433
339950,0migration/326545-21kthreadcore07:13:423
339950,0migration/325669-21timerwakeupswit08:48:453
339950,0migration/324608-21timerandwakeup08:23:453
339950,0migration/322274-21sh09:48:573
339950,0migration/316234-21irqcore11:48:403
339950,0migration/315436-21taskset07:06:243
339950,0migration/315384-21cpuspeed_turbos10:48:353
339950,0migration/315201-21sh11:28:343
339950,0migration/314469-21taskset11:47:213
28415050,0irq/27-eth0-tx-8500-21if_err_eth110:03:392
28415050,0irq/27-eth0-tx-8495-21df_abs09:43:362
28415050,0irq/27-eth0-tx-7035-21munin-node11:23:352
28415050,0irq/27-eth0-tx-31423-21ssh09:34:222
28415050,0irq/27-eth0-tx-31338-21aten2.4-expect08:08:340
28415050,0irq/27-eth0-tx-31270-21munin-node10:58:382
28415050,0irq/27-eth0-tx-28150-21munin-node06:53:380
28415050,0irq/27-eth0-tx-1991-21hddtemp_smartct09:18:362
28415050,0irq/27-eth0-tx-16874-21munin-node07:33:350
28415050,0irq/27-eth0-tx-16133-21iostat11:48:392
28415050,0irq/27-eth0-tx-0-21swapper/212:12:382
28415050,0irq/27-eth0-tx-0-21swapper/210:23:562
28415050,0irq/27-eth0-tx-0-21swapper/209:48:252
28415050,0irq/27-eth0-tx-0-21swapper/008:53:380
28415050,0irq/27-eth0-tx-0-21swapper/007:42:400
28415050,0irq/27-eth0-tx-0-21swapper/007:13:380
28415050,0irq/27-eth0-tx-0-21swapper/007:00:400
28405050,0irq/26-eth0-rx-675-21ssh08:55:543
28405050,0irq/26-eth0-rx-32445-21irqcore12:18:393
28405050,0irq/26-eth0-rx-29413-21sed09:53:463
28405050,0irq/26-eth0-rx-23751-21fschecks_time11:13:363
28405050,0irq/26-eth0-rx-14671-21load09:23:393
28405050,0irq/26-eth0-rx-0-21swapper/310:58:383
28405050,0irq/26-eth0-rx-0-21swapper/310:53:433
28405050,0irq/26-eth0-rx-0-21swapper/310:23:413
28405050,0irq/26-eth0-rx-0-21swapper/310:18:323
28405050,0irq/26-eth0-rx-0-21swapper/309:28:513
28405050,0irq/26-eth0-rx-0-21swapper/309:03:483
28405050,0irq/26-eth0-rx-0-21swapper/308:59:123
279489955,0cyclictest0-21swapper/209:39:142
279489950,0cyclictest0-21swapper/208:06:412
279409955,0cyclictest18-21rcuc/107:23:431
279409954,0cyclictest30013-21awk07:18:461
279389955,0cyclictest0-21swapper/011:53:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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