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2024-07-14 - 01:19

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 Sat Jul 13, 2024 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291350490,0irq/25-eth10-21swapper/306:53:403
2910323723,0sleep00-21swapper/006:55:530
2911923425,0sleep10-21swapper/106:56:061
2921123223,0sleep20-21swapper/206:57:112
293439988,0cyclictest6445-21snmpd07:30:381
28415070,0irq/27-eth0-tx-0-21swapper/211:17:192
249970,0watchdog/20-21swapper/211:53:052
249970,0watchdog/20-21swapper/210:38:132
339960,0migration/38046-21sh10:04:183
339960,0migration/331258-21taskset10:59:353
339960,0migration/322500-21sh11:33:163
339960,0migration/316076-21sh11:31:153
293449960,0cyclictest0-21swapper/211:48:042
293439966,0cyclictest0-21swapper/110:07:501
293439960,0cyclictest0-21swapper/111:36:261
293439960,0cyclictest0-21swapper/110:09:341
293439960,0cyclictest0-21swapper/109:03:111
293429963,0cyclictest11330-21munin-run07:32:510
28415060,0irq/27-eth0-tx-0-21swapper/212:27:132
28415060,0irq/27-eth0-tx-0-21swapper/212:19:222
28415060,0irq/27-eth0-tx-0-21swapper/211:31:442
28415060,0irq/27-eth0-tx-0-21swapper/211:26:102
28415060,0irq/27-eth0-tx-0-21swapper/211:21:492
28415060,0irq/27-eth0-tx-0-21swapper/211:06:582
28415060,0irq/27-eth0-tx-0-21swapper/210:55:012
28415060,0irq/27-eth0-tx-0-21swapper/210:51:452
28415060,0irq/27-eth0-tx-0-21swapper/210:25:062
28415060,0irq/27-eth0-tx-0-21swapper/210:15:302
28415060,0irq/27-eth0-tx-0-21swapper/209:53:592
28415060,0irq/27-eth0-tx-0-21swapper/209:42:552
28415060,0irq/27-eth0-tx-0-21swapper/209:23:212
28415060,0irq/27-eth0-tx-0-21swapper/209:20:332
28415060,0irq/27-eth0-tx-0-21swapper/209:14:022
28415060,0irq/27-eth0-tx-0-21swapper/008:58:180
28415060,0irq/27-eth0-tx-0-21swapper/008:20:470
28415060,0irq/27-eth0-tx-0-21swapper/008:08:150
28405060,0irq/26-eth0-rx-25183-21df_inode11:18:053
28405060,0irq/26-eth0-rx-1157-21sh09:19:203
249960,0watchdog/22484-21kthreadcore07:23:132
249960,0watchdog/218355-21kthreadcore08:48:092
249960,0watchdog/211271-21chrt07:32:252
249960,0watchdog/20-21swapper/212:01:452
249960,0watchdog/20-21swapper/211:44:012
249960,0watchdog/20-21swapper/211:08:252
249960,0watchdog/20-21swapper/209:00:092
149960,0migration/06616-21sh11:03:280
149960,0migration/0490-21sh10:22:140
4150,0ktimersoftd/00-21swapper/011:10:520
339950,0migration/39010-21aten_r1power_cu10:28:023
339950,0migration/37520-21timerwakeupswit12:23:273
339950,0migration/35655-21kthreadcore09:03:133
339950,0migration/332698-21kthreadcore08:58:223
339950,0migration/331840-21munin-node09:38:133
339950,0migration/331454-21latency_hist07:47:513
339950,0migration/331454-21latency_hist07:47:513
339950,0migration/331138-21timerandwakeup11:38:273
339950,0migration/329571-21sendmail_mailqu07:18:213
339950,0migration/327108-21runrttasks09:58:123
339950,0migration/325706-21taskset09:14:153
339950,0migration/324310-21taskset07:39:193
339950,0migration/320149-21runrttasks08:27:513
339950,0migration/319089-21kthreadcore10:53:153
339950,0migration/31874-21if_eth111:43:143
339950,0migration/31841-21sh10:23:083
339950,0migration/318122-21kthreadcore11:13:113
339950,0migration/317792-21munin-node10:33:083
339950,0migration/317060-21taskset09:29:213
339950,0migration/316763-21munin-node09:08:233
339950,0migration/314987-21munin-node12:08:183
339950,0migration/31488-21kthreadcore08:13:113
339950,0migration/314876-21diskmemload11:08:513
339950,0migration/31296-21gltestperf11:23:063
339950,0migration/31155-21kthreadcore06:58:133
339950,0migration/311153-21kthreadcore10:48:143
339950,0migration/31079-21latency_hist12:02:503
293439955,0cyclictest0-21swapper/111:44:571
293439955,0cyclictest0-21swapper/111:15:001
293439955,0cyclictest0-21swapper/110:36:131
293439955,0cyclictest0-21swapper/109:24:281
293439955,0cyclictest0-21swapper/109:01:081
293439954,0cyclictest1878-21awk10:23:091
293439954,0cyclictest0-21swapper/108:23:181
293439950,0cyclictest0-21swapper/111:29:581
293439950,0cyclictest0-21swapper/110:56:521
293439950,0cyclictest0-21swapper/110:40:001
293439950,0cyclictest0-21swapper/109:56:001
293439950,0cyclictest0-21swapper/109:17:511
293429955,0cyclictest0-21swapper/007:03:110
28415050,0irq/27-eth0-tx-25513-21ssh11:38:062
28415050,0irq/27-eth0-tx-0-21swapper/212:04:182
28415050,0irq/27-eth0-tx-0-21swapper/211:35:552
28415050,0irq/27-eth0-tx-0-21swapper/210:58:022
28415050,0irq/27-eth0-tx-0-21swapper/210:30:252
28415050,0irq/27-eth0-tx-0-21swapper/210:18:362
28415050,0irq/27-eth0-tx-0-21swapper/210:08:482
28415050,0irq/27-eth0-tx-0-21swapper/210:02:572
28415050,0irq/27-eth0-tx-0-21swapper/209:49:342
28415050,0irq/27-eth0-tx-0-21swapper/209:38:382
28415050,0irq/27-eth0-tx-0-21swapper/209:35:042
28415050,0irq/27-eth0-tx-0-21swapper/008:48:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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