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2024-03-03 - 21:20

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 Mar 03, 2024 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1700724432,0sleep00-21swapper/007:00:180
1707923826,0sleep30-21swapper/307:01:143
1697223526,0sleep20-21swapper/206:59:562
1706723425,0sleep10-21swapper/107:01:041
172809970,0cyclictest0-21swapper/211:58:042
172799970,0cyclictest16267-21tune2fs12:08:021
339960,0migration/36966-21kthreadcore10:58:133
339960,0migration/331387-21sh11:35:263
339960,0migration/324469-21sh11:11:323
28415060,0irq/27-eth0-tx-32468-21ssh12:18:052
28415060,0irq/27-eth0-tx-25111-21munin-node07:33:070
28415060,0irq/27-eth0-tx-0-21swapper/212:25:492
28415060,0irq/27-eth0-tx-0-21swapper/212:16:112
28415060,0irq/27-eth0-tx-0-21swapper/211:46:472
28415060,0irq/27-eth0-tx-0-21swapper/211:34:182
28415060,0irq/27-eth0-tx-0-21swapper/211:22:532
28415060,0irq/27-eth0-tx-0-21swapper/211:20:262
28415060,0irq/27-eth0-tx-0-21swapper/211:12:582
28415060,0irq/27-eth0-tx-0-21swapper/209:58:112
28415060,0irq/27-eth0-tx-0-21swapper/209:44:482
28415060,0irq/27-eth0-tx-0-21swapper/209:40:272
28415060,0irq/27-eth0-tx-0-21swapper/209:29:262
28405060,0irq/26-eth0-rx-5522-21irqcore10:18:103
249960,0watchdog/230272-21sh09:10:152
249960,0watchdog/20-21swapper/212:06:312
249960,0watchdog/20-21swapper/210:48:432
249960,0watchdog/20-21swapper/210:30:232
172809960,0cyclictest0-21swapper/210:18:172
149960,0migration/021031-21aten_r1power_cu10:07:580
149960,0migration/017281-21ntp_offset07:23:090
8225050,0irq/24-0000:00:9018-21cat08:57:412
35150,0ktimersoftd/30-21swapper/307:37:153
339950,0migration/39155-21kthreadcore09:18:123
339950,0migration/38775-21kthreadcore09:38:053
339950,0migration/38770-21cpuspeed_turbos11:22:583
339950,0migration/3864-21irqrtprio11:58:033
339950,0migration/36980-21taskset11:18:413
339950,0migration/332076-21cpuspeed_turbos07:38:023
339950,0migration/331125-21munin-node08:48:093
339950,0migration/330807-21irqcore09:53:103
339950,0migration/329524-21kthreadcore10:53:073
339950,0migration/327269-21munin-node07:58:053
339950,0migration/324014-21munin-node07:28:093
339950,0migration/323304-21timerandwakeup07:03:123
339950,0migration/322661-21aten_r1power_en09:28:003
339950,0migration/322454-21runrttasks11:48:443
339950,0migration/319899-21fschecks_count07:53:013
339950,0migration/31834-21kthreadcore10:13:083
339950,0migration/317408-21if_eth011:28:063
339950,0migration/317228-21kthreadcore10:03:103
339950,0migration/317126-21kthreadcore12:28:103
339950,0migration/312792-21munin-node08:08:133
339950,0migration/312135-21kthreadcore08:33:053
339950,0migration/31053-21gltestperf08:03:033
28415050,0irq/27-eth0-tx-9084-21munin-node08:58:150
28415050,0irq/27-eth0-tx-5698-21ssh09:14:542
28415050,0irq/27-eth0-tx-27793-21ssh10:10:102
28415050,0irq/27-eth0-tx-2294-21munin-node08:53:030
28415050,0irq/27-eth0-tx-21812-21munin-node09:48:022
28415050,0irq/27-eth0-tx-1216-21sed11:38:032
28415050,0irq/27-eth0-tx-11062-21kthreadcore11:03:052
28415050,0irq/27-eth0-tx-0-21swapper/212:09:132
28415050,0irq/27-eth0-tx-0-21swapper/211:53:412
28415050,0irq/27-eth0-tx-0-21swapper/211:29:122
28415050,0irq/27-eth0-tx-0-21swapper/211:09:392
28415050,0irq/27-eth0-tx-0-21swapper/210:58:232
28415050,0irq/27-eth0-tx-0-21swapper/210:53:112
28415050,0irq/27-eth0-tx-0-21swapper/210:43:002
28415050,0irq/27-eth0-tx-0-21swapper/210:33:542
28415050,0irq/27-eth0-tx-0-21swapper/210:12:432
28415050,0irq/27-eth0-tx-0-21swapper/210:02:542
28415050,0irq/27-eth0-tx-0-21swapper/209:33:072
28415050,0irq/27-eth0-tx-0-21swapper/209:22:422
28415050,0irq/27-eth0-tx-0-21swapper/209:17:582
28415050,0irq/27-eth0-tx-0-21swapper/008:44:560
28415050,0irq/27-eth0-tx-0-21swapper/007:49:450
28415050,0irq/27-eth0-tx-0-21swapper/007:14:390
28415050,0irq/27-eth0-tx-0-21swapper/007:08:050
28415050,0irq/27-eth0-tx-0-21swapper/007:06:490
28405050,0irq/26-eth0-rx-30757-21grep09:32:593
28405050,0irq/26-eth0-rx-25066-21if_eth1.211:53:053
28405050,0irq/26-eth0-rx-24360-21grep09:48:073
28405050,0irq/26-eth0-rx-20683-21grep08:38:143
28405050,0irq/26-eth0-rx-16452-21grep12:08:023
28405050,0irq/26-eth0-rx-13691-21kthreadcore11:03:053
28405050,0irq/26-eth0-rx-0-21swapper/312:12:593
28405050,0irq/26-eth0-rx-0-21swapper/312:04:543
28405050,0irq/26-eth0-rx-0-21swapper/311:42:483
28405050,0irq/26-eth0-rx-0-21swapper/310:50:273
28405050,0irq/26-eth0-rx-0-21swapper/310:46:563
28405050,0irq/26-eth0-rx-0-21swapper/310:39:473
28405050,0irq/26-eth0-rx-0-21swapper/310:25:083
28405050,0irq/26-eth0-rx-0-21swapper/310:09:153
28405050,0irq/26-eth0-rx-0-21swapper/309:24:503
28405050,0irq/26-eth0-rx-0-21swapper/309:08:083
259950,0migration/221762-21timerandwakeup09:03:122
259950,0migration/219971-21kthreadcore11:48:052
259950,0migration/218105-21kthreadcore12:28:102
259950,0migration/211725-21kthreadcore08:33:052
249950,0watchdog/20-21swapper/210:37:432
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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