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2026-06-13 - 16:33

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 376 highest latencies:
System rack1slot2s.osadl.org (updated Sat Jun 13, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
496223625,0sleep20-21swapper/206:51:052
304450350,0irq/25-eth10-21swapper/306:48:053
479523423,0sleep00-21swapper/006:49:070
473822622,0sleep10-21swapper/106:48:281
51809977,0cyclictest0-21swapper/208:53:092
51809966,0cyclictest0-21swapper/207:28:072
51799966,0cyclictest0-21swapper/108:42:591
51799960,0cyclictest0-21swapper/106:58:091
339960,0migration/326338-21sh11:47:263
339960,0migration/326190-21sh10:44:403
339960,0migration/317268-21sh12:20:443
339960,0migration/311112-21sh10:37:313
339960,0migration/310892-21sh10:57:353
339960,0migration/310635-21sh11:37:523
339960,0migration/310190-21sh11:37:123
29715060,0irq/26-eth0-rx-9942-21sh08:54:023
29715060,0irq/26-eth0-rx-1746-21ssh12:12:333
29715060,0irq/26-eth0-rx-17247-21swap10:38:103
29715060,0irq/26-eth0-rx-0-21swapper/309:11:193
149960,0migration/09909-21sh10:54:460
149960,0migration/026423-21sh09:04:360
149960,0migration/020145-21sh09:22:550
149960,0migration/012044-21fschecks_count08:58:010
149960,0migration/010984-21sh10:37:090
8215050,0irq/24-0000:00:2660-21cat11:12:472
51809950,0cyclictest0-21swapper/208:38:072
51799955,0cyclictest0-21swapper/110:48:101
51799955,0cyclictest0-21swapper/110:14:071
51799955,0cyclictest0-21swapper/109:55:491
51799950,0cyclictest0-21swapper/111:51:231
51799950,0cyclictest0-21swapper/109:47:561
339950,0migration/39734-21taskset11:15:033
339950,0migration/35529-21kthreadcore10:13:043
339950,0migration/34226-21df_abs09:33:003
339950,0migration/332131-21kthreadcore09:28:053
339950,0migration/330536-21kthreadcore11:08:053
339950,0migration/330278-21irqcore08:48:063
339950,0migration/328917-21munin-node09:48:033
339950,0migration/328745-21munin-node10:08:043
339950,0migration/328745-21munin-node10:08:043
339950,0migration/326803-21kthreadcore08:18:063
339950,0migration/326341-21sh11:06:023
339950,0migration/325588-21munin-node09:23:073
339950,0migration/323695-21kthreadcore09:43:063
339950,0migration/320383-21kthreadcore07:03:063
339950,0migration/317388-21kthreadcore07:23:073
339950,0migration/314982-21kthreadcore10:58:053
339950,0migration/312185-21kthreadcore08:33:033
339950,0migration/311999-21munin-node07:18:103
339950,0migration/310469-21aten_r1power_cu11:57:593
339950,0migration/310371-21taskset09:54:263
29725050,0irq/27-eth0-tx-20726-21if_err_eth1.210:03:042
29725050,0irq/27-eth0-tx-19059-21ssh09:01:482
29725050,0irq/27-eth0-tx-10976-21munin-node11:18:092
29725050,0irq/27-eth0-tx-0-21swapper/212:17:382
29725050,0irq/27-eth0-tx-0-21swapper/211:58:262
29725050,0irq/27-eth0-tx-0-21swapper/211:07:042
29725050,0irq/27-eth0-tx-0-21swapper/210:08:292
29725050,0irq/27-eth0-tx-0-21swapper/210:08:292
29725050,0irq/27-eth0-tx-0-21swapper/209:29:292
29725050,0irq/27-eth0-tx-0-21swapper/209:16:172
29725050,0irq/27-eth0-tx-0-21swapper/008:51:200
29715050,0irq/26-eth0-rx-6559-21runrttasks10:47:593
29715050,0irq/26-eth0-rx-26346-21latency_hist12:07:473
29715050,0irq/26-eth0-rx-21949-21kthreadcore11:23:053
29715050,0irq/26-eth0-rx-14112-21kthreadcore09:58:043
29715050,0irq/26-eth0-rx-0-21swapper/312:12:593
29715050,0irq/26-eth0-rx-0-21swapper/311:48:113
29715050,0irq/26-eth0-rx-0-21swapper/311:28:503
29715050,0irq/26-eth0-rx-0-21swapper/311:17:523
29715050,0irq/26-eth0-rx-0-21swapper/310:29:083
29715050,0irq/26-eth0-rx-0-21swapper/310:23:053
29715050,0irq/26-eth0-rx-0-21swapper/310:19:043
29715050,0irq/26-eth0-rx-0-21swapper/309:20:593
29715050,0irq/26-eth0-rx-0-21swapper/307:48:063
259950,0migration/29107-21ksmtuned11:34:042
259950,0migration/26060-21fschecks_time06:53:022
259950,0migration/220424-21gltestperf10:23:022
259950,0migration/210104-21kthreadcore07:18:062
249950,0watchdog/20-21swapper/207:23:032
179950,0migration/131709-21taskset07:12:061
179950,0migration/126744-21cpuspeed_turbos12:07:591
179950,0migration/12567-21taskset10:11:061
179950,0migration/12567-21taskset10:11:061
179950,0migration/121445-21kthreadcore09:43:061
179950,0migration/120438-21munin-node10:23:031
179950,0migration/11329-21gltestperf07:38:011
179950,0migration/11273-21kthreadcore07:13:061
169950,0watchdog/16559-21runrttasks11:08:061
169950,0watchdog/123036-21grep11:23:061
169950,0watchdog/120373-21head08:13:071
169950,0watchdog/120291-21grep07:28:031
169950,0watchdog/119543-21if_err_eth011:43:021
169950,0watchdog/112295-21perl10:18:021
149950,0migration/08920-21taskset12:14:470
149950,0migration/08438-21irqcore07:43:060
149950,0migration/05173-21kthreadcore08:03:060
149950,0migration/03917-21aten_r1power_vo09:53:000
149950,0migration/03569-21kthreadcore07:38:050
149950,0migration/031409-21kthreadcore07:33:060
149950,0migration/030447-21kthreadcore09:28:050
149950,0migration/029069-21kthreadcore11:08:050
149950,0migration/028090-21taskset09:47:540
149950,0migration/026930-21munin-node08:18:060
149950,0migration/026239-21turbostat12:07:470
149950,0migration/021259-21kthreadcore10:23:050
149950,0migration/019719-21sh07:03:050
149950,0migration/016349-21kthreadcore07:48:050
149950,0migration/014513-21kthreadcore10:38:050
149950,0migration/014162-21kthreadcore10:18:060
149950,0migration/01328-21kthreadcore07:13:060
149950,0migration/012787-21idleruntime09:38:010
149950,0migration/012050-21irqcore11:18:040
51809943,0cyclictest3556-21lldpd07:04:222
51809943,0cyclictest3514-21snmpd11:53:212
51809943,0cyclictest3514-21snmpd08:52:362
51809943,0cyclictest3514-21snmpd07:48:212
51809943,0cyclictest3514-21snmpd06:57:512
51809943,0cyclictest27254-21awk07:33:032
51809943,0cyclictest26298-21awk07:08:042
51809943,0cyclictest23516-21awk08:43:032
51809940,0cyclictest0-21swapper/207:40:522
51799944,0cyclictest0-21swapper/111:05:591
51799944,0cyclictest0-21swapper/107:18:101
51799943,0cyclictest8309-21awk07:43:051
51799943,0cyclictest4772-21awk09:33:021
51799943,0cyclictest4718-21awk09:13:031
51799943,0cyclictest3556-21lldpd08:58:221
51799943,0cyclictest3514-21snmpd12:12:511
51799943,0cyclictest3514-21snmpd11:37:511
51799943,0cyclictest3514-21snmpd11:35:211
51799943,0cyclictest3514-21snmpd10:53:211
51799943,0cyclictest3514-21snmpd10:45:211
51799943,0cyclictest3514-21snmpd10:33:211
51799943,0cyclictest3514-21snmpd10:00:211
51799943,0cyclictest3514-21snmpd09:06:211
51799943,0cyclictest3514-21snmpd08:55:211
51799943,0cyclictest3514-21snmpd08:20:211
51799943,0cyclictest3514-21snmpd08:11:211
51799943,0cyclictest3514-21snmpd08:06:211
51799943,0cyclictest3514-21snmpd07:03:061
51799943,0cyclictest3241-21irqbalance09:28:061
51799943,0cyclictest3241-21irqbalance08:48:071
51799943,0cyclictest3234-21awk11:53:011
51799943,0cyclictest12948-21awk09:38:021
51789944,0cyclictest0-21swapper/011:32:480
51789943,0cyclictest3556-21lldpd09:34:520
51789943,0cyclictest3514-21snmpd11:43:510
51789943,0cyclictest3514-21snmpd07:30:210
51789943,0cyclictest3241-21irqbalance11:53:260
51789943,0cyclictest3241-21irqbalance11:24:160
51789943,0cyclictest3241-21irqbalance10:10:460
51789943,0cyclictest3241-21irqbalance10:10:460
51789943,0cyclictest3241-21irqbalance09:17:070
51789943,0cyclictest3063-21sadc10:32:480
51789943,0cyclictest27837-21awk11:28:030
51789943,0cyclictest25555-21cut09:43:080
51789943,0cyclictest20261-21kworker/0:210:58:190
51789943,0cyclictest18199-21sadc12:02:470
51789943,0cyclictest11649-21awk11:38:020
51789943,0cyclictest11188-21awk12:18:020
51789940,0cyclictest14975-21munin-node08:13:010
51789940,0cyclictest0-21swapper/012:11:540
51789940,0cyclictest0-21swapper/010:02:560
339940,0migration/38205-21latency_hist08:07:483
339940,0migration/327980-21kthreadcore07:08:063
339940,0migration/325523-21sensors_volt09:03:113
339940,0migration/323044-21kthreadcore07:28:073
339940,0migration/321437-21sh07:53:023
339940,0migration/319653-21kthreadcore08:13:063
339940,0migration/31182-21missed_timers08:23:093
29725040,0irq/27-eth0-tx-17484-21needreboot09:38:062
29725040,0irq/27-eth0-tx-12876-21gltestperf09:18:022
29725040,0irq/27-eth0-tx-0-21swapper/211:37:532
29725040,0irq/27-eth0-tx-0-21swapper/211:27:592
29725040,0irq/27-eth0-tx-0-21swapper/210:58:032
29725040,0irq/27-eth0-tx-0-21swapper/210:53:052
29725040,0irq/27-eth0-tx-0-21swapper/210:43:292
29725040,0irq/27-eth0-tx-0-21swapper/210:38:532
29725040,0irq/27-eth0-tx-0-21swapper/210:34:352
29725040,0irq/27-eth0-tx-0-21swapper/210:28:202
29725040,0irq/27-eth0-tx-0-21swapper/210:17:542
29725040,0irq/27-eth0-tx-0-21swapper/210:12:502
29725040,0irq/27-eth0-tx-0-21swapper/209:58:042
29725040,0irq/27-eth0-tx-0-21swapper/209:53:432
29725040,0irq/27-eth0-tx-0-21swapper/209:47:502
29725040,0irq/27-eth0-tx-0-21swapper/209:32:572
29725040,0irq/27-eth0-tx-0-21swapper/209:23:042
29725040,0irq/27-eth0-tx-0-21swapper/008:53:010
29725040,0irq/27-eth0-tx-0-21swapper/008:38:090
29725040,0irq/27-eth0-tx-0-21swapper/008:33:030
29725040,0irq/27-eth0-tx-0-21swapper/007:23:050
29715040,0irq/26-eth0-rx-0-21swapper/311:53:003
29715040,0irq/26-eth0-rx-0-21swapper/310:02:563
29715040,0irq/26-eth0-rx-0-21swapper/309:37:593
29715040,0irq/26-eth0-rx-0-21swapper/309:14:133
29715040,0irq/26-eth0-rx-0-21swapper/308:58:353
29715040,0irq/26-eth0-rx-0-21swapper/308:07:493
259940,0migration/23252-21gltestperf08:28:022
259940,0migration/230769-21kthreadcore08:23:072
259940,0migration/229870-21kthreadcore12:08:042
259940,0migration/229797-21kthreadcore11:48:042
259940,0migration/229269-21kthreadcore10:48:052
259940,0migration/223659-21kthreadcore11:23:062
259940,0migration/222815-21kthreadcore09:03:062
259940,0migration/220369-21cpuspeed_turbos09:43:012
259940,0migration/217660-21kthreadcore08:13:052
259940,0migration/211123-21kthreadcore08:33:032
249940,0watchdog/23821-21if_err_eth1.311:13:022
249940,0watchdog/232654-21perl07:13:032
249940,0watchdog/219348-21if_err_eth1.212:03:022
249940,0watchdog/218702-21munin-node11:43:022
249940,0watchdog/20-21swapper/212:18:022
249940,0watchdog/20-21swapper/209:08:062
179940,0migration/17270-21kthreadcore06:53:051
179940,0migration/15237-21kthreadcore08:28:061
179940,0migration/130290-21kthreadcore08:23:071
179940,0migration/129431-21kthreadcore09:08:051
179940,0migration/118504-21aten2.4-expect12:02:581
179940,0migration/113606-21kthreadcore10:58:041
179940,0migration/113063-21if_eth009:18:031
179940,0migration/111535-21irqstats12:18:031
169940,0watchdog/120553-21cut08:38:071
169940,0watchdog/120480-21grep10:03:021
169940,0watchdog/117910-21ssh10:39:061
169940,0watchdog/110717-21kthreadcore08:33:031
169940,0watchdog/10-21swapper/111:28:061
169940,0watchdog/10-21swapper/107:23:031
149940,0migration/026698-21sh11:47:500
149940,0migration/02381-21latency_hist08:27:480
149940,0migration/023711-21kthreadcore10:43:060
149940,0migration/019199-21sh10:01:490
149940,0migration/011460-21latency_hist10:17:480
51809932,0cyclictest2477-21awk08:03:042
51809930,0cyclictest8536-21cpu08:08:012
51809930,0cyclictest20726-21telnet07:52:592
51799933,0cyclictest0-21swapper/110:28:091
51799932,0cyclictest3514-21snmpd08:00:211
51799932,0cyclictest23621-21tr07:53:051
51799932,0cyclictest14975-21awk07:48:031
51799932,0cyclictest11842-21awk11:18:021
51799930,0cyclictest24865-21kthreadcore09:23:061
51789933,0cyclictest23045-21kworker/0:109:18:040
51789933,0cyclictest23045-21kworker/0:109:07:520
51789933,0cyclictest23045-21kworker/0:108:43:020
51789933,0cyclictest23045-21kworker/0:108:27:500
51789933,0cyclictest23045-21kworker/0:107:57:500
51789933,0cyclictest23045-21kworker/0:107:53:060
51789933,0cyclictest23045-21kworker/0:107:17:500
51789933,0cyclictest23045-21kworker/0:107:07:500
51789933,0cyclictest23045-21kworker/0:106:57:500
51789933,0cyclictest23045-21kworker/0:106:52:500
51789933,0cyclictest20261-21kworker/0:211:12:550
51789933,0cyclictest20261-21kworker/0:211:02:530
51789933,0cyclictest20261-21kworker/0:210:47:490
29725030,0irq/27-eth0-tx-0-21swapper/008:08:000
29715030,0irq/26-eth0-rx-0-21swapper/308:40:503
29715030,0irq/26-eth0-rx-0-21swapper/308:28:073
29715030,0irq/26-eth0-rx-0-21swapper/307:57:593
29715030,0irq/26-eth0-rx-0-21swapper/307:43:013
29715030,0irq/26-eth0-rx-0-21swapper/307:37:593
29715030,0irq/26-eth0-rx-0-21swapper/307:32:593
29715030,0irq/26-eth0-rx-0-21swapper/307:13:013
29715030,0irq/26-eth0-rx-0-21swapper/306:58:003
249930,0watchdog/20-21swapper/207:57:512
249930,0watchdog/20-21swapper/207:43:072
169930,0watchdog/10-21swapper/111:58:141
169930,0watchdog/10-21swapper/111:13:021
51809920,0cyclictest21588-21cat08:17:482
29715020,0irq/26-eth0-rx-0-21swapper/308:42:593
29715020,0irq/26-eth0-rx-0-21swapper/306:53:413
169920,0watchdog/10-21swapper/107:32:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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