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2026-07-24 - 14:28

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 highest latencies:
System rack1slot2s.osadl.org (updated Fri Jul 24, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450970,0irq/25-eth10-21swapper/306:48:143
785523726,0sleep20-21swapper/206:48:362
775223524,0sleep10-21swapper/106:47:231
772223524,0sleep00-21swapper/006:47:060
79519970,0cyclictest0-21swapper/106:59:131
79529960,0cyclictest0-21swapper/211:54:122
79519965,0cyclictest0-21swapper/108:39:101
79519960,0cyclictest6179-21diskmemload10:38:401
339960,0migration/39670-21sh10:50:103
339960,0migration/39547-21sh11:11:343
339960,0migration/39464-21sh11:33:193
339960,0migration/329520-21sh09:22:233
339960,0migration/312926-21sh09:32:153
339960,0migration/31288-21sh11:27:543
29725060,0irq/27-eth0-tx-31127-21munin-node08:19:090
29715060,0irq/26-eth0-rx-22244-21perl09:39:073
29715060,0irq/26-eth0-rx-15010-21cat09:54:083
27160,0ktimersoftd/26179-21diskmemload09:45:272
27160,0ktimersoftd/20-21swapper/207:44:092
19160,0ktimersoftd/10-21swapper/109:45:271
149960,0migration/028505-21kthreadcore12:04:100
149960,0migration/023904-21sh11:39:180
8215050,0irq/24-0000:00:18206-21python10:14:142
8215050,0irq/24-0000:00:12831-21munin-run09:53:532
79529955,0cyclictest0-21swapper/211:04:042
79529953,0cyclictest3556-21lldpd07:43:022
79529950,0cyclictest0-21swapper/210:26:042
79529950,0cyclictest0-21swapper/209:37:502
79519955,0cyclictest0-21swapper/111:41:161
79519955,0cyclictest0-21swapper/110:44:591
79519955,0cyclictest0-21swapper/109:57:031
79519955,0cyclictest0-21swapper/109:04:241
79519955,0cyclictest0-21swapper/107:09:181
79519950,0cyclictest0-21swapper/112:03:581
79519950,0cyclictest0-21swapper/111:37:571
79519950,0cyclictest0-21swapper/109:32:461
79519950,0cyclictest0-21swapper/108:49:441
79499955,0cyclictest0-21swapper/011:54:030
79499954,0cyclictest30119-21awk09:03:530
4150,0ktimersoftd/00-21swapper/010:46:250
35150,0ktimersoftd/30-21swapper/310:46:253
339950,0migration/39980-21kthreadcore08:49:103
339950,0migration/37632-21munin-node09:09:083
339950,0migration/36455-21munin-node12:09:143
339950,0migration/331139-21munin-node08:19:043
339950,0migration/326136-21kthreadcore06:59:133
339950,0migration/326033-21fschecks_time08:39:063
339950,0migration/323534-21aten2.4-expect07:49:053
339950,0migration/322132-21kthreadcore10:19:093
339950,0migration/319606-21timerandwakeup09:34:193
339950,0migration/319019-21cpuspeed_turbos08:34:073
339950,0migration/317390-21taskset08:06:583
339950,0migration/31719-21kthreadcore07:29:123
339950,0migration/316872-21aten_r1power_cu07:44:043
339950,0migration/316224-21kthreadcore10:14:093
339950,0migration/314414-21kthreadcore08:29:113
339950,0migration/310887-21taskset08:03:223
339950,0migration/310809-21kthreadcore12:14:093
29725050,0irq/27-eth0-tx-29074-21kthreadcore11:24:102
29725050,0irq/27-eth0-tx-24994-21kthreadcore09:59:102
29725050,0irq/27-eth0-tx-22494-21munin-node07:24:160
29725050,0irq/27-eth0-tx-20344-21munin-node10:19:122
29725050,0irq/27-eth0-tx-11269-21ssh10:33:102
29725050,0irq/27-eth0-tx-10699-21kthreadcore09:09:102
29725050,0irq/27-eth0-tx-0-21swapper/211:23:042
29725050,0irq/27-eth0-tx-0-21swapper/211:23:042
29725050,0irq/27-eth0-tx-0-21swapper/210:39:402
29725050,0irq/27-eth0-tx-0-21swapper/208:55:232
29725050,0irq/27-eth0-tx-0-21swapper/007:59:050
29725050,0irq/27-eth0-tx-0-21swapper/007:44:070
29715050,0irq/26-eth0-rx-5167-21uniq10:09:073
29715050,0irq/26-eth0-rx-12726-21seq09:53:363
29715050,0irq/26-eth0-rx-0-21swapper/311:45:003
29715050,0irq/26-eth0-rx-0-21swapper/311:14:033
29715050,0irq/26-eth0-rx-0-21swapper/311:04:363
29715050,0irq/26-eth0-rx-0-21swapper/310:59:053
29715050,0irq/26-eth0-rx-0-21swapper/310:41:313
29715050,0irq/26-eth0-rx-0-21swapper/310:24:063
29715050,0irq/26-eth0-rx-0-21swapper/309:59:343
29715050,0irq/26-eth0-rx-0-21swapper/309:02:493
29715050,0irq/26-eth0-rx-0-21swapper/308:54:113
29715050,0irq/26-eth0-rx-0-21swapper/307:39:103
259950,0migration/26678-21cpuspeed_turbos08:49:052
259950,0migration/230016-21kthreadcore07:04:112
259950,0migration/226749-21kthreadcore12:04:092
259950,0migration/222292-21kthreadcore10:59:102
259950,0migration/212527-21kthreadcore11:14:092
249950,0watchdog/232506-21cut07:29:122
19150,0ktimersoftd/10-21swapper/110:50:301
179950,0migration/18021-21kthreadcore09:09:091
179950,0migration/17992-21taskset12:12:501
179950,0migration/131771-21kthreadcore07:54:101
179950,0migration/127666-21latency08:59:111
179950,0migration/115384-21munin-node09:14:081
179950,0migration/114983-21munin-node07:14:201
179950,0migration/112389-21latency_hist10:13:531
179950,0migration/110578-21missed_timers09:49:111
169950,0watchdog/10-21swapper/106:49:081
149950,0migration/08743-21kthreadcore09:29:100
149950,0migration/07769-21kthreadcore10:29:110
149950,0migration/07295-21kthreadcore07:34:130
149950,0migration/05680-21kthreadcore07:09:120
149950,0migration/0520-21kthreadcore07:29:120
149950,0migration/030704-21kthreadcore07:04:110
149950,0migration/03018-21irqcore11:29:080
149950,0migration/026349-21kthreadcore09:19:110
149950,0migration/025843-21df_abs08:39:050
149950,0migration/025820-21taskset11:23:000
149950,0migration/025820-21taskset11:23:000
149950,0migration/025158-21kthreadcore06:59:130
149950,0migration/020411-21aten_r1power_en10:19:030
149950,0migration/020233-21kthreadcore07:19:110
149950,0migration/019977-21runrttasks10:18:360
149950,0migration/019731-21missed_timers08:54:120
149950,0migration/017848-21fschecks_time11:59:060
149950,0migration/017441-21missed_timers08:29:120
149950,0migration/017339-21taskset08:06:200
149950,0migration/016791-21kthreadcore09:34:130
149950,0migration/01066-21fschecks_count12:09:050
79529943,0cyclictest585-21awk08:44:082
79529943,0cyclictest3556-21lldpd08:28:012
79529943,0cyclictest3556-21lldpd08:15:312
79529943,0cyclictest3556-21lldpd07:35:322
79529943,0cyclictest3556-21lldpd07:26:312
79529943,0cyclictest3514-21snmpd07:58:542
79529943,0cyclictest31132-21awk07:54:092
79529943,0cyclictest15711-21awk06:54:102
79529943,0cyclictest15342-21awk09:14:082
79529943,0cyclictest12056-21awk08:04:092
79519944,0cyclictest0-21swapper/110:33:281
79519944,0cyclictest0-21swapper/108:30:111
79519944,0cyclictest0-21swapper/107:34:131
79519943,0cyclictest6324-21awk08:24:081
79519943,0cyclictest21320-21awk10:19:081
79519943,0cyclictest19355-21awk11:19:071
79519943,0cyclictest19355-21awk11:19:071
79519943,0cyclictest18734-21awk08:09:081
79519943,0cyclictest18151-21awk11:59:081
79499944,0cyclictest0-21swapper/010:41:510
79499943,0cyclictest9126-21awk06:49:090
79499943,0cyclictest4196-21sadc07:58:530
79499943,0cyclictest3556-21lldpd10:08:030
79499943,0cyclictest3514-21snmpd11:10:250
79499943,0cyclictest3514-21snmpd09:09:540
79499943,0cyclictest3514-21snmpd08:44:090
79499943,0cyclictest3514-21snmpd08:27:090
79499943,0cyclictest3241-21irqbalance11:14:510
79499943,0cyclictest3241-21irqbalance10:56:210
79499943,0cyclictest3241-21irqbalance10:36:010
79499943,0cyclictest3241-21irqbalance09:44:210
79499943,0cyclictest18780-21munin-node08:34:080
79499943,0cyclictest17572-21sadc11:38:530
79499943,0cyclictest17098-21kworker/0:109:49:060
79499943,0cyclictest14085-21awk09:54:070
79499943,0cyclictest11109-21kworker/0:211:49:080
79499943,0cyclictest11109-21kworker/0:211:44:100
79499940,0cyclictest0-21swapper/009:07:440
4140,0ktimersoftd/00-21swapper/009:40:030
339940,0migration/35639-21kthreadcore07:34:123
339940,0migration/33992-21kthreadcore11:49:113
339940,0migration/330140-21taskset07:53:583
339940,0migration/328916-21taskset07:28:403
339940,0migration/327110-21kthreadcore08:14:103
339940,0migration/32406-21kthreadcore08:44:093
339940,0migration/31846-21kthreadcore09:44:103
339940,0migration/317383-21kthreadcore06:54:133
29725040,0irq/27-eth0-tx-4514-21munin-node10:09:082
29725040,0irq/27-eth0-tx-23937-21kthreadcore09:39:102
29725040,0irq/27-eth0-tx-10683-21gltestperf11:34:062
29725040,0irq/27-eth0-tx-0-21swapper/212:14:262
29725040,0irq/27-eth0-tx-0-21swapper/212:09:312
29725040,0irq/27-eth0-tx-0-21swapper/211:58:532
29725040,0irq/27-eth0-tx-0-21swapper/211:49:582
29725040,0irq/27-eth0-tx-0-21swapper/211:44:262
29725040,0irq/27-eth0-tx-0-21swapper/211:29:052
29725040,0irq/27-eth0-tx-0-21swapper/211:08:552
29725040,0irq/27-eth0-tx-0-21swapper/210:44:042
29725040,0irq/27-eth0-tx-0-21swapper/210:38:522
29725040,0irq/27-eth0-tx-0-21swapper/210:04:022
29725040,0irq/27-eth0-tx-0-21swapper/209:56:212
29725040,0irq/27-eth0-tx-0-21swapper/209:29:032
29725040,0irq/27-eth0-tx-0-21swapper/209:23:572
29725040,0irq/27-eth0-tx-0-21swapper/209:19:012
29725040,0irq/27-eth0-tx-0-21swapper/209:04:232
29725040,0irq/27-eth0-tx-0-21swapper/208:59:322
29725040,0irq/27-eth0-tx-0-21swapper/008:50:540
29725040,0irq/27-eth0-tx-0-21swapper/007:14:070
29715040,0irq/26-eth0-rx-5427-21latency_hist08:23:533
29715040,0irq/26-eth0-rx-2710-21cut09:24:103
29715040,0irq/26-eth0-rx-0-21swapper/312:07:563
29715040,0irq/26-eth0-rx-0-21swapper/311:59:533
29715040,0irq/26-eth0-rx-0-21swapper/311:54:203
29715040,0irq/26-eth0-rx-0-21swapper/311:40:423
29715040,0irq/26-eth0-rx-0-21swapper/311:34:103
29715040,0irq/26-eth0-rx-0-21swapper/311:19:033
29715040,0irq/26-eth0-rx-0-21swapper/311:19:033
29715040,0irq/26-eth0-rx-0-21swapper/310:54:013
29715040,0irq/26-eth0-rx-0-21swapper/310:37:033
29715040,0irq/26-eth0-rx-0-21swapper/310:29:533
29715040,0irq/26-eth0-rx-0-21swapper/310:04:323
29715040,0irq/26-eth0-rx-0-21swapper/309:18:083
29715040,0irq/26-eth0-rx-0-21swapper/309:04:053
29715040,0irq/26-eth0-rx-0-21swapper/307:09:143
259940,0migration/23110-21latency_hist10:48:532
259940,0migration/225656-21kthreadcore07:49:112
259940,0migration/225588-21munin-node08:39:042
259940,0migration/221274-21kthreadcore08:09:102
259940,0migration/218768-21runrttasks08:33:562
259940,0migration/218543-21kthreadcore07:19:112
259940,0migration/217917-21diskmemload11:39:052
249940,0watchdog/28917-21gltestperf06:49:082
249940,0watchdog/2278902sleep207:03:402
249940,0watchdog/212764-21perl08:29:072
249940,0watchdog/20-21swapper/210:54:072
249940,0watchdog/20-21swapper/207:09:082
179940,0migration/18386-21kthreadcore07:59:111
179940,0migration/18144-21needreboot11:09:111
179940,0migration/17165-21munin-node11:49:171
179940,0migration/128102-21latency_hist07:03:531
179940,0migration/127303-21kthreadcore09:19:111
179940,0migration/126718-21if_eth111:44:091
179940,0migration/123520-21irqcore07:24:091
179940,0migration/122720-21irqcore09:39:091
179940,0migration/122308-21munin-node07:44:131
179940,0migration/120775-21kthreadcore10:59:101
179940,0migration/120708-21kthreadcore08:34:121
179940,0migration/117216-21kthreadcore06:54:131
179940,0migration/116036-21kthreadcore09:34:131
179940,0migration/110651-21fschecks_count07:39:061
169940,0watchdog/19246-21ssh11:53:591
169940,0watchdog/14417-21ssh09:25:271
169940,0watchdog/127841-21ssh10:01:111
169940,0watchdog/126891-21ssh11:24:071
169940,0watchdog/126803-21kthreadcore07:49:111
169940,0watchdog/122840-21kthreadcore10:39:111
169940,0watchdog/114308-21kthreadcore10:54:111
169940,0watchdog/10-21swapper/110:23:551
169940,0watchdog/10-21swapper/110:09:111
169940,0watchdog/10-21swapper/107:29:121
149940,0migration/030410-21kthreadcore11:24:110
149940,0migration/019269-21kthreadcore08:09:100
149940,0migration/011640-21kthreadcore12:14:090
79529932,0cyclictest3556-21lldpd07:18:022
79519933,0cyclictest0-21swapper/108:53:591
79519932,0cyclictest9552-21awk12:14:071
79519932,0cyclictest3514-21snmpd08:16:131
79519932,0cyclictest31970-21awk08:19:081
79519931,0cyclictest18823-21grep07:19:111
79519930,0cyclictest2585-21sed10:04:161
79499933,0cyclictest4205-21awk10:49:080
79499933,0cyclictest17098-21kworker/0:110:24:060
79499933,0cyclictest17098-21kworker/0:109:24:000
79499933,0cyclictest17098-21kworker/0:109:13:560
79499933,0cyclictest17098-21kworker/0:107:48:570
79499933,0cyclictest17098-21kworker/0:107:38:570
79499933,0cyclictest17098-21kworker/0:106:53:550
79499933,0cyclictest11109-21kworker/0:211:03:580
79499933,0cyclictest11109-21kworker/0:210:59:020
79499932,0cyclictest24473-21munin-node08:14:120
79499932,0cyclictest10780-21rm10:09:360
79499931,0cyclictest23316-21kthreadcore09:59:100
339930,0migration/31891-21taskset07:05:583
29715030,0irq/26-eth0-rx-0-21swapper/308:09:053
29715030,0irq/26-eth0-rx-0-21swapper/307:23:393
29715030,0irq/26-eth0-rx-0-21swapper/307:15:533
259930,0migration/2353-21kthreadcore08:19:102
179930,0migration/13853-21kthreadcore08:44:101
169930,0watchdog/131474-21kthreadcore11:04:111
169930,0watchdog/110565-21munin-node11:14:031
169930,0watchdog/10-21swapper/111:30:471
169930,0watchdog/10-21swapper/108:04:111
29715020,0irq/26-eth0-rx-0-21swapper/306:50:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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