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2024-04-19 - 18:54

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 Apr 19, 2024 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2509023627,0sleep30-21swapper/306:59:273
2518423521,0sleep00-21swapper/007:00:320
2518123526,0sleep20-21swapper/207:00:302
2487423526,0sleep10-21swapper/106:56:571
28415070,0irq/27-eth0-tx-0-21swapper/212:01:202
28415070,0irq/27-eth0-tx-0-21swapper/211:07:502
28415070,0irq/27-eth0-tx-0-21swapper/209:22:252
339960,0migration/34229-21sh09:48:173
339960,0migration/319943-21sh12:09:363
339960,0migration/319478-21munin-node07:41:193
28415060,0irq/27-eth0-tx-28037-21ssh12:15:062
28415060,0irq/27-eth0-tx-27272-21ssh11:50:452
28415060,0irq/27-eth0-tx-23000-21telnet08:36:100
28415060,0irq/27-eth0-tx-0-21swapper/212:23:102
28415060,0irq/27-eth0-tx-0-21swapper/211:58:032
28415060,0irq/27-eth0-tx-0-21swapper/211:51:212
28415060,0irq/27-eth0-tx-0-21swapper/211:41:252
28415060,0irq/27-eth0-tx-0-21swapper/211:34:222
28415060,0irq/27-eth0-tx-0-21swapper/211:27:312
28415060,0irq/27-eth0-tx-0-21swapper/211:23:002
28415060,0irq/27-eth0-tx-0-21swapper/211:17:392
28415060,0irq/27-eth0-tx-0-21swapper/211:12:122
28415060,0irq/27-eth0-tx-0-21swapper/210:56:152
28415060,0irq/27-eth0-tx-0-21swapper/210:52:372
28415060,0irq/27-eth0-tx-0-21swapper/210:46:182
28415060,0irq/27-eth0-tx-0-21swapper/210:42:502
28415060,0irq/27-eth0-tx-0-21swapper/210:37:272
28415060,0irq/27-eth0-tx-0-21swapper/209:56:092
28415060,0irq/27-eth0-tx-0-21swapper/209:35:182
28415060,0irq/27-eth0-tx-0-21swapper/209:08:552
28405060,0irq/26-eth0-rx-25232-21kthreadcore09:21:183
28405060,0irq/26-eth0-rx-23037-21cat11:26:173
28405060,0irq/26-eth0-rx-14175-40yum-updatesd-he10:21:043
252939966,0cyclictest27647-21sensors09:41:211
252939966,0cyclictest23624-21diskmemload09:13:481
249960,0watchdog/227445-21ssh10:01:412
249960,0watchdog/20-21swapper/209:52:532
249960,0watchdog/20-21swapper/209:38:092
249960,0watchdog/20-21swapper/209:26:372
149960,0migration/026699-21sh11:26:560
149960,0migration/023920-21kthreadcore07:46:200
149960,0migration/014433-21kthreadcore11:41:190
8225050,0irq/24-0000:00:2515-21cat08:20:582
339950,0migration/34092-21kthreadcore07:56:173
339950,0migration/332354-21kthreadcore12:16:143
339950,0migration/331219-21kthreadcore07:26:173
339950,0migration/329851-21kthreadcore11:31:143
339950,0migration/327000-21kthreadcore07:01:153
339950,0migration/326900-21taskset07:47:233
339950,0migration/32587-21kthreadcore07:06:183
339950,0migration/325848-21taskset07:21:333
339950,0migration/322247-21aten_r1power_po10:26:103
339950,0migration/32124-21kthreadcore09:06:213
339950,0migration/319528-21kthreadcore08:31:163
339950,0migration/319115-21sh11:02:233
339950,0migration/318855-21kthreadcore08:06:183
339950,0migration/318720-21kthreadcore09:36:173
339950,0migration/315671-21kthreadcore08:51:193
339950,0migration/315600-21taskset08:26:453
339950,0migration/31552-21latency_hist07:55:583
339950,0migration/315111-21kthreadcore11:41:193
339950,0migration/314367-21munin-node10:41:153
339950,0migration/31189-21kthreadcore10:11:123
339950,0migration/311667-21kthreadcore07:36:163
28415050,0irq/27-eth0-tx-13313-21ssh09:11:272
28415050,0irq/27-eth0-tx-0-21swapper/212:16:542
28415050,0irq/27-eth0-tx-0-21swapper/212:06:332
28415050,0irq/27-eth0-tx-0-21swapper/210:31:422
28415050,0irq/27-eth0-tx-0-21swapper/210:21:132
28415050,0irq/27-eth0-tx-0-21swapper/210:06:282
28415050,0irq/27-eth0-tx-0-21swapper/209:47:402
28415050,0irq/27-eth0-tx-0-21swapper/209:16:012
28415050,0irq/27-eth0-tx-0-21swapper/008:51:220
28415050,0irq/27-eth0-tx-0-21swapper/008:47:250
28415050,0irq/27-eth0-tx-0-21swapper/008:27:310
28415050,0irq/27-eth0-tx-0-21swapper/008:01:120
28415050,0irq/27-eth0-tx-0-21swapper/007:51:160
28405050,0irq/26-eth0-rx-9501-21kthreadcore12:01:203
28405050,0irq/26-eth0-rx-5932-21forks10:36:093
28405050,0irq/26-eth0-rx-29186-21ssh10:06:273
28405050,0irq/26-eth0-rx-21882-21ssh09:41:083
28405050,0irq/26-eth0-rx-21114-21grep11:46:193
28405050,0irq/26-eth0-rx-21011-21diskstats11:06:093
28405050,0irq/26-eth0-rx-13023-21fschecks_time11:21:133
28405050,0irq/26-eth0-rx-0-21swapper/312:29:163
28405050,0irq/26-eth0-rx-0-21swapper/312:13:163
28405050,0irq/26-eth0-rx-0-21swapper/311:52:303
28405050,0irq/26-eth0-rx-0-21swapper/311:00:043
28405050,0irq/26-eth0-rx-0-21swapper/310:31:373
28405050,0irq/26-eth0-rx-0-21swapper/310:01:463
28405050,0irq/26-eth0-rx-0-21swapper/309:54:463
28405050,0irq/26-eth0-rx-0-21swapper/309:32:343
28405050,0irq/26-eth0-rx-0-21swapper/309:13:123
28405050,0irq/26-eth0-rx-0-21swapper/309:00:593
252949950,0cyclictest0-21swapper/210:11:552
252949950,0cyclictest0-21swapper/208:02:102
252939955,0cyclictest0-21swapper/111:59:111
252939955,0cyclictest0-21swapper/110:57:421
252939950,0cyclictest0-21swapper/111:29:051
252939950,0cyclictest0-21swapper/110:22:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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