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2026-08-05 - 22:05

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 Wed Aug 05, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450570,0irq/25-eth10-21swapper/306:43:013
1460323624,0sleep20-21swapper/206:44:332
1446723521,0sleep00-21swapper/006:42:550
1463323425,0sleep10-21swapper/106:44:561
339970,0migration/310715-21taskset10:46:533
339960,0migration/327415-21munin-node09:33:073
339960,0migration/324440-21sh11:33:573
29725060,0irq/27-eth0-tx-4380-21munin-run10:02:442
29725060,0irq/27-eth0-tx-20272-21ps10:53:022
29715060,0irq/26-eth0-rx-24572-21munin-run12:17:443
179960,0migration/114532-21gltestperf09:27:541
149449966,0cyclictest0-21swapper/208:49:252
149439960,0cyclictest0-21swapper/110:16:111
149960,0migration/08530-21sh12:07:110
149960,0migration/01153-21sh08:56:000
8215050,0irq/24-0000:00:21443-21cat07:37:442
339950,0migration/39029-21aten_r1power_en12:07:553
339950,0migration/38366-21taskset09:13:123
339950,0migration/332431-21taskset08:52:463
339950,0migration/330826-21kthreadcore09:58:013
339950,0migration/322564-21taskset07:46:383
339950,0migration/322083-21kthreadcore10:53:033
339950,0migration/321942-21taskset07:41:533
339950,0migration/320817-21kthreadcore11:53:023
339950,0migration/319042-21switchtime09:48:063
339950,0migration/31734-21munin-node10:18:063
339950,0migration/314867-21kthreadcore10:28:023
339950,0migration/312363-21irqcore10:47:593
339950,0migration/311096-21swap09:43:083
339950,0migration/310781-21munin-node10:03:083
29725050,0irq/27-eth0-tx-27109-21munin-node10:57:562
29725050,0irq/27-eth0-tx-2159-21ssh10:40:132
29725050,0irq/27-eth0-tx-18188-21ssh11:12:182
29725050,0irq/27-eth0-tx-0-21swapper/211:21:242
29725050,0irq/27-eth0-tx-0-21swapper/211:16:052
29725050,0irq/27-eth0-tx-0-21swapper/209:45:052
29725050,0irq/27-eth0-tx-0-21swapper/008:48:310
29725050,0irq/27-eth0-tx-0-21swapper/007:00:310
29715050,0irq/26-eth0-rx-159902sleep306:55:133
29715050,0irq/26-eth0-rx-14722-21kthreadcore11:08:023
29715050,0irq/26-eth0-rx-0-21swapper/312:05:213
29715050,0irq/26-eth0-rx-0-21swapper/312:02:073
29715050,0irq/26-eth0-rx-0-21swapper/311:43:463
29715050,0irq/26-eth0-rx-0-21swapper/311:22:563
29715050,0irq/26-eth0-rx-0-21swapper/311:12:563
29715050,0irq/26-eth0-rx-0-21swapper/310:57:473
29715050,0irq/26-eth0-rx-0-21swapper/310:34:263
29715050,0irq/26-eth0-rx-0-21swapper/310:13:033
29715050,0irq/26-eth0-rx-0-21swapper/309:42:033
29715050,0irq/26-eth0-rx-0-21swapper/309:17:453
29715050,0irq/26-eth0-rx-0-21swapper/309:08:203
29715050,0irq/26-eth0-rx-0-21swapper/309:06:403
29715050,0irq/26-eth0-rx-0-21swapper/309:00:033
29715050,0irq/26-eth0-rx-0-21swapper/308:50:073
259950,0migration/24919-21sh09:04:512
259950,0migration/23440-21sh10:22:022
259950,0migration/223283-21kthreadcore09:33:022
259950,0migration/222562-21munin-node12:13:052
259950,0migration/219601-21latency_hist07:22:442
259950,0migration/213872-21kthreadcore10:28:022
179950,0migration/128530-21latency_hist08:32:441
179950,0migration/125491-21munin-node11:57:541
179950,0migration/125385-21sh10:33:041
179950,0migration/122118-21latency_hist07:42:441
179950,0migration/119571-21latency_hist07:22:441
179950,0migration/116413-21sh12:12:051
179950,0migration/114336-21kthreadcore10:28:021
179950,0migration/110381-21taskset11:47:571
179950,0migration/110280-21munin-node10:03:041
169950,0watchdog/122160-21kthreadcore11:13:021
149449950,0cyclictest30426-21diskmemload09:02:072
149439955,0cyclictest0-21swapper/111:18:461
149439955,0cyclictest0-21swapper/111:05:321
149439950,0cyclictest0-21swapper/109:58:501
149439950,0cyclictest0-21swapper/109:17:131
149429950,0cyclictest0-21swapper/008:58:000
149950,0migration/09296-21kthreadcore09:43:030
149950,0migration/09282-21timerwakeupswit10:43:080
149950,0migration/06483-21kthreadcore10:03:010
149950,0migration/04411-21kthreadcore11:23:010
149950,0migration/032660-21kthreadcore09:58:010
149950,0migration/032036-21sh11:59:260
149950,0migration/029605-21latency_hist09:37:440
149950,0migration/025583-21ksmtuned08:09:110
149950,0migration/025293-21kthreadcore09:33:030
149950,0migration/022657-21taskset07:47:440
149950,0migration/021813-21irqrtprio10:13:020
149950,0migration/021413-21kthreadcore12:13:020
149950,0migration/019338-21munin-node09:48:070
149950,0migration/015530-21kthreadcore10:48:010
149950,0migration/012409-21fschecks_count10:27:580
149950,0migration/010358-21sh09:18:340
149950,0migration/010256-21irqrtprio12:08:000
8215040,0irq/24-0000:00:19470-21cat07:22:442
339940,0migration/35753-21kthreadcore11:03:023
339940,0migration/332360-21kthreadcore10:38:013
339940,0migration/315987-21diskmemload11:48:503
339940,0migration/313589-21if_eth1.310:08:013
339940,0migration/310775-21fschecks_time11:27:563
29725040,0irq/27-eth0-tx-26021-21munin-node11:37:582
29725040,0irq/27-eth0-tx-17550-21munin-node11:53:022
29725040,0irq/27-eth0-tx-13206-21munin-node09:47:562
29725040,0irq/27-eth0-tx-0-21swapper/212:02:552
29725040,0irq/27-eth0-tx-0-21swapper/211:57:492
29725040,0irq/27-eth0-tx-0-21swapper/211:23:012
29725040,0irq/27-eth0-tx-0-21swapper/210:22:582
29725040,0irq/27-eth0-tx-0-21swapper/210:12:572
29725040,0irq/27-eth0-tx-0-21swapper/210:02:452
29725040,0irq/27-eth0-tx-0-21swapper/209:37:542
29725040,0irq/27-eth0-tx-0-21swapper/209:24:272
29725040,0irq/27-eth0-tx-0-21swapper/209:15:142
29725040,0irq/27-eth0-tx-0-21swapper/209:07:532
29725040,0irq/27-eth0-tx-0-21swapper/208:53:012
29725040,0irq/27-eth0-tx-0-21swapper/006:49:020
29715040,0irq/26-eth0-rx-10072-21unixbench_singl10:23:073
29715040,0irq/26-eth0-rx-0-21swapper/311:39:273
29715040,0irq/26-eth0-rx-0-21swapper/311:20:183
29715040,0irq/26-eth0-rx-0-21swapper/309:27:563
29715040,0irq/26-eth0-rx-0-21swapper/309:24:423
29715040,0irq/26-eth0-rx-0-21swapper/307:33:353
259940,0migration/29903-21cpuspeed_turbos11:47:552
259940,0migration/28923-21latency_hist12:07:442
259940,0migration/23447-21hddtemp_smartct11:02:592
259940,0migration/226106-21kthreadcore09:53:022
259940,0migration/22039-21fschecks_count11:42:572
249940,0watchdog/24061-21expr10:42:582
249940,0watchdog/214674-21kthreadcore10:08:022
249940,0watchdog/210186-21ssh09:18:022
179940,0migration/1765-21sh08:54:561
179940,0migration/15461-21kthreadcore11:23:021
179940,0migration/130300-21fschecks_time09:37:581
179940,0migration/129382-21if_eth110:18:001
179940,0migration/129192-21kthreadcore10:38:001
179940,0migration/117904-21kthreadcore09:48:011
179940,0migration/111541-21runrttasks11:07:591
169940,0watchdog/17568-21kthreadcore10:43:021
169940,0watchdog/122378-21perl09:32:581
169940,0watchdog/119200-21grep12:13:021
169940,0watchdog/119117-21ksmtuned07:19:111
169940,0watchdog/118163-21perl11:52:581
169940,0watchdog/116688-21sh10:48:021
169940,0watchdog/10-21swapper/111:43:021
169940,0watchdog/10-21swapper/111:34:141
169940,0watchdog/10-21swapper/110:08:021
149449943,0cyclictest3556-21lldpd08:23:392
149449943,0cyclictest3556-21lldpd08:00:082
149449943,0cyclictest3556-21lldpd07:55:382
149449943,0cyclictest3556-21lldpd07:43:082
149449943,0cyclictest3556-21lldpd07:29:082
149449943,0cyclictest3556-21lldpd07:00:372
149449943,0cyclictest3556-21lldpd06:55:082
149449943,0cyclictest20719-21awk10:32:592
149449943,0cyclictest18957-21awk11:32:572
149449943,0cyclictest17496-21sadc07:07:442
149449943,0cyclictest14717-21awk09:27:552
149449943,0cyclictest12299-21ps10:47:592
149449943,0cyclictest11012-21awk11:27:572
149439944,0cyclictest0-21swapper/111:41:471
149439944,0cyclictest0-21swapper/111:32:391
149439944,0cyclictest0-21swapper/108:49:561
149439944,0cyclictest0-21swapper/107:32:131
149439943,0cyclictest3514-21snmpd11:02:421
149439943,0cyclictest3514-21snmpd10:57:271
149439943,0cyclictest3514-21snmpd09:56:111
149439943,0cyclictest3514-21snmpd09:43:561
149439943,0cyclictest3514-21snmpd09:19:561
149439943,0cyclictest3514-21snmpd09:08:551
149439943,0cyclictest3514-21snmpd08:41:101
149439943,0cyclictest3514-21snmpd08:19:101
149439943,0cyclictest3514-21snmpd08:08:251
149439943,0cyclictest3514-21snmpd08:05:401
149439943,0cyclictest3514-21snmpd07:49:101
149439943,0cyclictest3514-21snmpd07:44:241
149439943,0cyclictest3514-21snmpd07:14:091
149439943,0cyclictest3514-21snmpd07:03:091
149439943,0cyclictest3514-21snmpd07:02:241
149439943,0cyclictest3241-21irqbalance09:25:431
149439943,0cyclictest3241-21irqbalance09:03:331
149439943,0cyclictest27818-21sadc08:27:441
149439943,0cyclictest1845-21awk12:02:581
149429944,0cyclictest0-21swapper/010:36:230
149429944,0cyclictest0-21swapper/009:05:440
149429943,0cyclictest3514-21snmpd08:43:550
149429943,0cyclictest3514-21snmpd07:55:250
149429943,0cyclictest3514-21snmpd07:25:240
149429943,0cyclictest3514-21snmpd07:10:540
149429943,0cyclictest3241-21irqbalance11:43:020
149429943,0cyclictest3241-21irqbalance11:35:320
149429943,0cyclictest3241-21irqbalance11:27:520
149429943,0cyclictest3241-21irqbalance10:41:520
149429943,0cyclictest18428-21awk11:52:590
149429943,0cyclictest15644-21sed11:48:070
149429943,0cyclictest15264-21kworker/0:008:24:120
149429943,0cyclictest15264-21kworker/0:007:20:380
149429943,0cyclictest13481-21awk10:08:000
149429943,0cyclictest10925-21grep11:07:560
149429940,0cyclictest0-21swapper/011:37:550
149940,0migration/015563-21kthreadcore09:27:570
149940,0migration/01009-21diskmemload11:20:280
29715030,0irq/26-eth0-rx-0-21swapper/309:52:483
29715030,0irq/26-eth0-rx-0-21swapper/308:45:283
29715030,0irq/26-eth0-rx-0-21swapper/308:38:023
29715030,0irq/26-eth0-rx-0-21swapper/308:35:343
29715030,0irq/26-eth0-rx-0-21swapper/308:28:563
29715030,0irq/26-eth0-rx-0-21swapper/308:25:083
29715030,0irq/26-eth0-rx-0-21swapper/308:14:453
29715030,0irq/26-eth0-rx-0-21swapper/307:58:213
29715030,0irq/26-eth0-rx-0-21swapper/307:54:213
29715030,0irq/26-eth0-rx-0-21swapper/307:51:363
29715030,0irq/26-eth0-rx-0-21swapper/307:24:473
29715030,0irq/26-eth0-rx-0-21swapper/307:18:123
29715030,0irq/26-eth0-rx-0-21swapper/307:13:363
29715030,0irq/26-eth0-rx-0-21swapper/307:03:453
29715030,0irq/26-eth0-rx-0-21swapper/306:50:253
259930,0migration/228363-21runrttasks08:31:382
169930,0watchdog/10-21swapper/110:22:501
169930,0watchdog/10-21swapper/109:00:191
149449933,0cyclictest3556-21lldpd08:19:382
149449932,0cyclictest3556-21lldpd08:34:082
149449932,0cyclictest3556-21lldpd08:03:082
149449932,0cyclictest3556-21lldpd07:48:082
149449932,0cyclictest3556-21lldpd07:41:372
149449932,0cyclictest3556-21lldpd07:14:082
149449932,0cyclictest3514-21snmpd06:50:542
149449932,0cyclictest26531-21sadc08:17:442
149439932,0cyclictest3514-21snmpd08:13:101
149439932,0cyclictest3514-21snmpd07:56:551
149439932,0cyclictest3514-21snmpd06:54:391
149439930,0cyclictest0-21swapper/108:01:041
149439930,0cyclictest0-21swapper/107:07:471
149429933,0cyclictest15264-21kworker/0:011:12:550
149429933,0cyclictest15264-21kworker/0:011:02:550
149429933,0cyclictest15264-21kworker/0:010:57:470
149429933,0cyclictest15264-21kworker/0:010:52:470
149429933,0cyclictest15264-21kworker/0:010:22:450
149429933,0cyclictest15264-21kworker/0:010:17:450
149429933,0cyclictest15264-21kworker/0:009:52:450
149429933,0cyclictest15264-21kworker/0:009:22:460
149429933,0cyclictest15264-21kworker/0:009:12:500
149429933,0cyclictest15264-21kworker/0:009:07:480
149429933,0cyclictest15264-21kworker/0:008:32:460
149429933,0cyclictest15264-21kworker/0:008:28:140
149429933,0cyclictest15264-21kworker/0:008:17:500
149429933,0cyclictest15264-21kworker/0:008:12:540
149429933,0cyclictest15264-21kworker/0:008:02:520
149429933,0cyclictest15264-21kworker/0:007:59:120
149429933,0cyclictest15264-21kworker/0:007:47:460
149429933,0cyclictest15264-21kworker/0:007:37:480
149429933,0cyclictest15264-21kworker/0:007:32:460
149429933,0cyclictest15264-21kworker/0:007:28:100
149429933,0cyclictest15264-21kworker/0:007:12:480
149429933,0cyclictest15264-21kworker/0:007:02:460
149429933,0cyclictest15264-21kworker/0:006:56:180
149429932,0cyclictest3241-21irqbalance08:38:030
29715020,0irq/26-eth0-rx-0-21swapper/308:18:303
29715020,0irq/26-eth0-rx-0-21swapper/308:08:133
29715020,0irq/26-eth0-rx-0-21swapper/308:02:473
29715020,0irq/26-eth0-rx-0-21swapper/307:28:103
29715020,0irq/26-eth0-rx-0-21swapper/307:07:493
29715020,0irq/26-eth0-rx-0-21swapper/306:57:463
249920,0watchdog/20-21swapper/208:42:552
169920,0watchdog/10-21swapper/108:42:471
169920,0watchdog/10-21swapper/108:32:471
169920,0watchdog/10-21swapper/107:32:471
169920,0watchdog/10-21swapper/106:47:471
149449921,0cyclictest0-21swapper/207:07:462
149449920,0cyclictest0-21swapper/208:37:442
149449920,0cyclictest0-21swapper/208:07:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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