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2026-07-07 - 08:26

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 all highest latencies:
System rack1slot2s.osadl.org (updated Tue Jul 07, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450570,0irq/25-eth10-21swapper/318:48:243
923724938,0sleep10-21swapper/118:46:411
940023425,0sleep20-21swapper/218:48:342
315222824,0sleep00-21swapper/018:45:400
96439966,0cyclictest1664-21diskmemload22:43:482
96409960,0cyclictest0-21swapper/020:57:460
339960,0migration/37442-21idleruntime-cro20:30:333
339960,0migration/326627-21fschecks_time22:25:463
29715060,0irq/26-eth0-rx-26164-21munin-node23:05:473
29715060,0irq/26-eth0-rx-2512-21irqcore23:10:503
149960,0migration/024822-21sh23:44:090
149960,0migration/024063-21sh23:21:310
96439955,0cyclictest0-21swapper/223:56:382
96439955,0cyclictest0-21swapper/223:44:012
96439954,0cyclictest20875-21awk20:15:482
96439950,0cyclictest0-21swapper/222:47:442
96439950,0cyclictest0-21swapper/221:56:112
96439950,0cyclictest0-21swapper/221:07:472
96439950,0cyclictest0-21swapper/200:10:402
96419950,0cyclictest0-21swapper/122:40:481
96409955,0cyclictest0-21swapper/023:13:120
96409955,0cyclictest0-21swapper/022:50:480
96409955,0cyclictest0-21swapper/021:45:510
96409955,0cyclictest0-21swapper/021:11:100
96409955,0cyclictest0-21swapper/020:10:560
96409950,0cyclictest0-21swapper/022:57:160
96409950,0cyclictest0-21swapper/022:23:320
96409950,0cyclictest0-21swapper/022:07:550
96409950,0cyclictest0-21swapper/021:05:010
96409950,0cyclictest0-21swapper/000:04:350
4150,0ktimersoftd/00-21swapper/023:40:000
35150,0ktimersoftd/30-21swapper/323:50:343
35150,0ktimersoftd/30-21swapper/323:40:003
35150,0ktimersoftd/30-21swapper/322:55:133
339950,0migration/39792-21latency_hist20:55:333
339950,0migration/35346-21kthreadcore21:30:503
339950,0migration/331874-21sh23:46:223
339950,0migration/330576-21kthreadcore22:05:523
339950,0migration/328305-21kthreadcore21:25:503
339950,0migration/325313-21latency_hist00:05:333
339950,0migration/321123-21aten_r1power_po20:40:463
339950,0migration/319953-21kthreadcore22:00:493
339950,0migration/318135-21aten_r1power_cu21:00:453
339950,0migration/317378-21cpuspeed_turbos19:00:473
339950,0migration/316052-21kthreadcore20:35:513
339950,0migration/313237-21idleruntime19:45:473
29725050,0irq/27-eth0-tx-32369-21munin-node20:00:570
29725050,0irq/27-eth0-tx-26070-21munin-node22:25:462
29725050,0irq/27-eth0-tx-25410-21munin-node00:05:502
29725050,0irq/27-eth0-tx-11438-21munin-node19:20:530
29725050,0irq/27-eth0-tx-10856-21if_eth1.322:35:532
29725050,0irq/27-eth0-tx-0-21swapper/221:53:522
29725050,0irq/27-eth0-tx-0-21swapper/221:40:232
29725050,0irq/27-eth0-tx-0-21swapper/020:50:580
29725050,0irq/27-eth0-tx-0-21swapper/020:30:590
29725050,0irq/27-eth0-tx-0-21swapper/019:15:590
29715050,0irq/26-eth0-rx-8990-21ssh22:13:293
29715050,0irq/26-eth0-rx-6584-21munin-node19:40:483
29715050,0irq/26-eth0-rx-31387-21cat22:45:513
29715050,0irq/26-eth0-rx-24313-21cut20:15:513
29715050,0irq/26-eth0-rx-19582-21kthreadcore22:20:503
29715050,0irq/26-eth0-rx-19334-21cut21:40:493
29715050,0irq/26-eth0-rx-11164-21ssh22:35:543
29715050,0irq/26-eth0-rx-10628-21cat22:55:493
29715050,0irq/26-eth0-rx-10003-21fschecks_time23:55:463
29715050,0irq/26-eth0-rx-0-21swapper/323:40:473
29715050,0irq/26-eth0-rx-0-21swapper/323:03:403
29715050,0irq/26-eth0-rx-0-21swapper/322:30:503
29715050,0irq/26-eth0-rx-0-21swapper/321:55:453
29715050,0irq/26-eth0-rx-0-21swapper/321:48:523
29715050,0irq/26-eth0-rx-0-21swapper/321:23:203
29715050,0irq/26-eth0-rx-0-21swapper/321:15:483
29715050,0irq/26-eth0-rx-0-21swapper/321:05:493
29715050,0irq/26-eth0-rx-0-21swapper/320:50:523
29715050,0irq/26-eth0-rx-0-21swapper/300:18:323
29715050,0irq/26-eth0-rx-0-21swapper/300:00:533
27150,0ktimersoftd/21664-21diskmemload23:40:002
27150,0ktimersoftd/20-21swapper/222:55:132
259950,0migration/28924-21taskset22:13:172
259950,0migration/226814-21munin-node20:41:002
259950,0migration/226282-21fschecks_count23:25:452
259950,0migration/215591-21switchtime22:55:562
249950,0watchdog/211536-21kthreadcore20:30:512
249950,0watchdog/210906-21if_eth022:15:472
249950,0watchdog/20-21swapper/223:32:312
179950,0migration/19954-21munin-node23:15:441
179950,0migration/1971-21sh22:08:531
179950,0migration/18773-21sh22:53:441
179950,0migration/14151-21kthreadcore22:30:491
179950,0migration/132223-21munin-node20:20:531
179950,0migration/131452-21kthreadcore21:45:501
179950,0migration/123483-21timerwakeupswit23:40:531
179950,0migration/119948-21kthreadcore22:00:491
179950,0migration/116936-21latency_hist19:00:331
179950,0migration/116244-21ksmtuned23:58:071
179950,0migration/114424-21kthreadcore21:35:521
149950,0migration/06274-21kthreadcore21:50:480
149950,0migration/03675-21kthreadcore00:10:500
149950,0migration/03111-21kthreadcore22:30:490
149950,0migration/03073-21kthreadcore23:50:490
149950,0migration/027151-21kthreadcore19:05:510
149950,0migration/027056-21kthreadcore19:30:500
149950,0migration/026774-21fschecks_count21:05:450
149950,0migration/023728-21latency21:20:510
149950,0migration/019370-21cpuspeed_turbos19:50:450
149950,0migration/016706-21taskset22:37:570
149950,0migration/013461-21irqcore19:45:490
149950,0migration/012437-21kthreadcore21:35:510
149950,0migration/011722-21kthreadcore23:15:500
96439943,0cyclictest3556-21lldpd23:45:372
96439943,0cyclictest3556-21lldpd22:08:052
96439943,0cyclictest3556-21lldpd20:55:342
96439943,0cyclictest3556-21lldpd20:00:342
96439943,0cyclictest3556-21lldpd19:32:332
96439943,0cyclictest3556-21lldpd19:02:332
96439943,0cyclictest3514-21snmpd19:12:312
96439943,0cyclictest3241-21irqbalance23:10:412
96439943,0cyclictest3241-21irqbalance23:05:412
96439943,0cyclictest3241-21irqbalance21:21:212
96439943,0cyclictest3241-21irqbalance20:50:422
96439943,0cyclictest3241-21irqbalance20:47:322
96439943,0cyclictest3241-21irqbalance20:35:522
96439943,0cyclictest3241-21irqbalance19:55:522
96439943,0cyclictest3241-21irqbalance19:51:322
96439943,0cyclictest3241-21irqbalance19:46:322
96439943,0cyclictest3241-21irqbalance19:41:022
96439943,0cyclictest2947-21awk21:30:472
96439943,0cyclictest24670-21awk19:05:492
96439943,0cyclictest14217-21awk20:10:482
96439943,0cyclictest12419-21awk19:20:492
96419944,0cyclictest0-21swapper/122:21:151
96419944,0cyclictest0-21swapper/120:40:501
96419943,0cyclictest3556-21lldpd23:23:071
96419943,0cyclictest3556-21lldpd23:10:361
96419943,0cyclictest3556-21lldpd20:17:341
96419943,0cyclictest3556-21lldpd19:26:041
96419943,0cyclictest3556-21lldpd19:25:041
96419943,0cyclictest3556-21lldpd19:11:031
96419943,0cyclictest3556-21lldpd18:52:031
96419943,0cyclictest3556-21lldpd00:16:061
96419943,0cyclictest3241-21irqbalance22:57:011
96419943,0cyclictest3241-21irqbalance22:10:511
96419943,0cyclictest27250-21awk21:05:471
96419943,0cyclictest26832-21awk23:05:511
96419943,0cyclictest25648-21awk19:30:481
96419943,0cyclictest2223-21awk23:30:471
96419943,0cyclictest1930-21awk00:10:481
96419943,0cyclictest13274-21awk19:45:471
96419943,0cyclictest10758-21awk22:35:521
96409944,0cyclictest0-21swapper/022:27:280
96409944,0cyclictest0-21swapper/000:20:020
96409943,0cyclictest3556-21lldpd21:40:350
96409943,0cyclictest3514-21snmpd23:30:330
96409943,0cyclictest3514-21snmpd22:00:170
96409943,0cyclictest3241-21irqbalance23:57:210
96409943,0cyclictest32272-21awk19:35:490
96409943,0cyclictest32132-21sadc20:00:330
96409943,0cyclictest26700-21awk23:05:500
96409943,0cyclictest24536-21sadc19:30:330
96409943,0cyclictest21933-21awk20:40:490
96409943,0cyclictest1095-21sadc23:30:330
339940,0migration/327487-21kthreadcore19:55:493
339940,0migration/323748-21sendmail_mailst19:25:523
339940,0migration/312329-21kthreadcore21:35:513
29725040,0irq/27-eth0-tx-26951-21perl21:45:452
29725040,0irq/27-eth0-tx-17629-21ssh23:20:372
29725040,0irq/27-eth0-tx-1663-21munin-node22:30:452
29725040,0irq/27-eth0-tx-0-21swapper/223:51:312
29725040,0irq/27-eth0-tx-0-21swapper/223:15:482
29725040,0irq/27-eth0-tx-0-21swapper/223:00:492
29725040,0irq/27-eth0-tx-0-21swapper/222:23:322
29725040,0irq/27-eth0-tx-0-21swapper/222:00:332
29725040,0irq/27-eth0-tx-0-21swapper/221:40:502
29725040,0irq/27-eth0-tx-0-21swapper/221:15:392
29725040,0irq/27-eth0-tx-0-21swapper/221:00:342
29725040,0irq/27-eth0-tx-0-21swapper/200:16:242
29725040,0irq/27-eth0-tx-0-21swapper/020:35:480
29725040,0irq/27-eth0-tx-0-21swapper/020:25:510
29725040,0irq/27-eth0-tx-0-21swapper/020:24:000
29725040,0irq/27-eth0-tx-0-21swapper/020:05:520
29715040,0irq/26-eth0-rx-30612-21kthreadcore23:25:493
29715040,0irq/26-eth0-rx-0-21swapper/323:30:433
29715040,0irq/26-eth0-rx-0-21swapper/323:20:513
29715040,0irq/26-eth0-rx-0-21swapper/323:16:423
29715040,0irq/26-eth0-rx-0-21swapper/322:40:363
29715040,0irq/26-eth0-rx-0-21swapper/322:15:473
29715040,0irq/26-eth0-rx-0-21swapper/321:50:473
29715040,0irq/26-eth0-rx-0-21swapper/321:11:373
29715040,0irq/26-eth0-rx-0-21swapper/320:05:513
29715040,0irq/26-eth0-rx-0-21swapper/318:55:493
29715040,0irq/26-eth0-rx-0-21swapper/300:12:163
259940,0migration/27754-21kthreadcore19:15:512
259940,0migration/23031-21kthreadcore20:25:512
259940,0migration/217402-21aten_r1power_cu00:00:422
259940,0migration/214246-21kthreadcore18:55:492
249940,0watchdog/2878-21kthreadcore19:35:522
249940,0watchdog/27136-21forks20:05:482
249940,0watchdog/26559-21runrttasks20:20:482
249940,0watchdog/23595-21kthreadcore21:10:512
249940,0watchdog/231099-21kthreadcore21:25:512
249940,0watchdog/20-21swapper/219:25:482
19140,0ktimersoftd/10-21swapper/121:16:181
179940,0migration/16945-21kthreadcore20:50:521
179940,0migration/16165-21kthreadcore19:15:501
179940,0migration/14616-21kthreadcore21:30:501
179940,0migration/131906-21switchtime22:25:551
179940,0migration/131642-21kthreadcore20:45:511
179940,0migration/130616-21kthreadcore00:05:521
179940,0migration/128914-21kthreadcore21:25:511
179940,0migration/121752-21kthreadcore19:50:491
179940,0migration/117640-21fschecks_count19:00:481
179940,0migration/11390-21kthreadcore20:00:511
179940,0migration/113385-21kthreadcore22:15:491
179940,0migration/11063-21taskset20:25:461
169940,0watchdog/132647-21ssh22:47:351
169940,0watchdog/130026-21kthreadcore23:45:511
169940,0watchdog/125835-21aten2.4-expect23:25:431
169940,0watchdog/121357-21kthreadcore23:00:511
169940,0watchdog/118365-21ssh21:20:351
169940,0watchdog/117441-21ssh21:59:191
169940,0watchdog/111064-21memory19:40:521
169940,0watchdog/110092-21cut23:35:471
169940,0watchdog/10-21swapper/121:50:471
169940,0watchdog/10-21swapper/121:40:511
169940,0watchdog/10-21swapper/121:10:511
169940,0watchdog/10-21swapper/121:00:511
169940,0watchdog/10-21swapper/119:35:521
169940,0watchdog/10-21swapper/119:05:481
149940,0migration/08571-21sh22:12:170
149940,0migration/07906-21sendmail_mailtr21:30:540
149940,0migration/018840-21kthreadcore19:00:520
149940,0migration/015812-21switchtime22:15:550
149940,0migration/013271-21kthreadcore21:15:530
149940,0migration/011273-21sh18:55:460
149940,0migration/010021-21taskset18:52:420
96439932,0cyclictest3556-21lldpd18:53:032
96419932,0cyclictest3514-21snmpd00:02:181
96419932,0cyclictest26692-21awk19:55:481
96419932,0cyclictest17836-21tr20:35:521
96409933,0cyclictest3556-21lldpd19:45:030
96409932,0cyclictest3556-21lldpd22:45:360
96409932,0cyclictest31182-21sensors00:05:550
96409932,0cyclictest30730-21tr19:10:450
96409932,0cyclictest25977-21sed23:45:460
96409932,0cyclictest20890-21awk20:15:480
96409932,0cyclictest18702-21awk23:00:480
96409930,0cyclictest18617-21perl22:40:460
96409930,0cyclictest0-21swapper/022:00:500
4130,0ktimersoftd/00-21swapper/020:48:560
339930,0migration/316249-21kthreadcore19:20:513
339930,0migration/31293-21kthreadcore20:00:513
29715030,0irq/26-eth0-rx-0-21swapper/320:30:463
29715030,0irq/26-eth0-rx-0-21swapper/320:20:563
29715030,0irq/26-eth0-rx-0-21swapper/320:10:443
29715030,0irq/26-eth0-rx-0-21swapper/319:50:503
29715030,0irq/26-eth0-rx-0-21swapper/319:35:503
29715030,0irq/26-eth0-rx-0-21swapper/319:30:443
29715030,0irq/26-eth0-rx-0-21swapper/319:15:443
29715030,0irq/26-eth0-rx-0-21swapper/319:10:453
29715030,0irq/26-eth0-rx-0-21swapper/318:50:423
169930,0watchdog/10-21swapper/120:57:551
169930,0watchdog/10-21swapper/120:30:511
169930,0watchdog/10-21swapper/120:07:561
149930,0migration/01339-21sh21:29:210
35120,0ktimersoftd/30-21swapper/320:45:523
29715020,0irq/26-eth0-rx-0-21swapper/319:05:473
169920,0watchdog/10-21swapper/123:50:351
169920,0watchdog/10-21swapper/120:10:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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