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2026-08-27 - 20:29

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 Thu Aug 27, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450460,0irq/25-eth10-21swapper/306:42:583
325623623,0sleep00-21swapper/006:44:550
328523425,0sleep20-21swapper/206:45:132
249723323,0sleep10-21swapper/106:40:591
33989966,0cyclictest0-21swapper/209:50:112
33989960,0cyclictest0-21swapper/208:47:352
33969960,0cyclictest0-21swapper/010:44:040
33969960,0cyclictest0-21swapper/010:15:320
339960,0migration/329815-21sh11:48:103
339960,0migration/326142-21sh09:45:173
339960,0migration/326128-21sh09:23:323
339960,0migration/323415-21sh11:04:213
29715060,0irq/26-eth0-rx-32333-21swap09:46:023
29715060,0irq/26-eth0-rx-31301-21diskstats11:50:503
29715060,0irq/26-eth0-rx-12549-21cat06:50:563
29715060,0irq/26-eth0-rx-0-21swapper/309:30:143
259960,0migration/21988-21sh09:07:522
149960,0migration/08410-21sh10:35:140
149960,0migration/030673-21sh11:07:130
149960,0migration/01423-21sh09:06:230
33989950,0cyclictest0-21swapper/212:12:142
33989950,0cyclictest0-21swapper/211:13:252
33989950,0cyclictest0-21swapper/210:23:082
33979950,0cyclictest0-21swapper/112:09:241
33979950,0cyclictest0-21swapper/110:43:481
33979950,0cyclictest0-21swapper/110:23:371
33969950,0cyclictest0-21swapper/011:11:490
339950,0migration/37875-21kernelversion11:55:553
339950,0migration/34547-21taskset12:12:383
339950,0migration/327459-21kthreadcore07:25:563
339950,0migration/326745-21idleruntime10:05:523
339950,0migration/324362-21munin-node11:05:503
339950,0migration/321918-21kthreadcore10:40:553
339950,0migration/318691-21kthreadcore10:20:553
339950,0migration/318535-21fschecks_count10:00:513
339950,0migration/31778-21kthreadcore07:55:553
339950,0migration/316916-21latency_hist06:55:393
339950,0migration/314057-21taskset11:16:393
339950,0migration/313351-21aten_r1power_po08:05:503
339950,0migration/311652-21df_abs07:15:503
29725050,0irq/27-eth0-tx-30671-21ssh11:07:132
29725050,0irq/27-eth0-tx-26573-21munin-node08:15:520
29725050,0irq/27-eth0-tx-15014-21munin-node11:40:592
29725050,0irq/27-eth0-tx-1241-21if_eth1.310:50:542
29725050,0irq/27-eth0-tx-0-21swapper/211:52:182
29725050,0irq/27-eth0-tx-0-21swapper/211:33:522
29725050,0irq/27-eth0-tx-0-21swapper/210:04:412
29725050,0irq/27-eth0-tx-0-21swapper/209:50:552
29725050,0irq/27-eth0-tx-0-21swapper/209:22:082
29725050,0irq/27-eth0-tx-0-21swapper/208:54:142
29725050,0irq/27-eth0-tx-0-21swapper/008:47:060
29725050,0irq/27-eth0-tx-0-21swapper/007:03:170
29715050,0irq/26-eth0-rx-9196-21idleruntime-cro10:15:383
29715050,0irq/26-eth0-rx-8507-21cpuspeed_turbos10:55:503
29715050,0irq/26-eth0-rx-7784-21kthreadcore09:30:563
29715050,0irq/26-eth0-rx-30387-21sh11:28:123
29715050,0irq/26-eth0-rx-30170-21missed_timers10:45:563
29715050,0irq/26-eth0-rx-28324-21cut10:25:563
29715050,0irq/26-eth0-rx-2663-21grep08:20:553
29715050,0irq/26-eth0-rx-15903-21cpuspeed_turbos11:20:513
29715050,0irq/26-eth0-rx-12715-21ssh09:55:563
29715050,0irq/26-eth0-rx-11887-21memory08:00:573
29715050,0irq/26-eth0-rx-10458-21irqcore10:15:513
29715050,0irq/26-eth0-rx-0-21swapper/312:00:593
29715050,0irq/26-eth0-rx-0-21swapper/311:13:263
29715050,0irq/26-eth0-rx-0-21swapper/310:50:563
29715050,0irq/26-eth0-rx-0-21swapper/310:36:203
29715050,0irq/26-eth0-rx-0-21swapper/309:50:463
29715050,0irq/26-eth0-rx-0-21swapper/309:09:153
29715050,0irq/26-eth0-rx-0-21swapper/308:50:453
29715050,0irq/26-eth0-rx-0-21swapper/308:48:523
259950,0migration/29038-21kthreadcore08:00:552
259950,0migration/28871-21kthreadcore07:35:562
259950,0migration/28500-21sh09:31:002
259950,0migration/2536-21dump-pmu-power08:20:332
259950,0migration/231771-21switchtime10:06:092
259950,0migration/223455-21sh10:42:422
259950,0migration/219704-21latency_hist08:10:382
259950,0migration/216519-21latency07:15:552
259950,0migration/215187-21sh10:58:162
259950,0migration/212213-21kthreadcore11:35:562
259950,0migration/211035-21gltestperf06:50:532
259950,0migration/210145-21munin-node10:15:492
249950,0watchdog/27792-21ssh10:11:292
249950,0watchdog/229551-21tr07:50:572
249950,0watchdog/218013-21ssh09:39:372
179950,0migration/130404-21timerandwakeup07:26:011
169950,0watchdog/129550-21cut07:50:571
149950,0migration/07790-21kthreadcore07:35:560
149950,0migration/07454-21kthreadcore07:10:560
149950,0migration/05014-21sh11:51:550
149950,0migration/04981-21kthreadcore09:50:550
149950,0migration/04814-21kthreadcore10:50:560
149950,0migration/04241-21fschecks_time06:45:520
149950,0migration/030708-21kthreadcore07:50:570
149950,0migration/028679-21kthreadcore10:25:560
149950,0migration/028412-21munin-node08:40:540
149950,0migration/028412-21kernelversion09:25:560
149950,0migration/027850-21kthreadcore10:45:550
149950,0migration/025989-21aten_r1power_fr10:05:490
149950,0migration/025725-21latency_hist10:05:380
149950,0migration/024620-21runrttasks09:20:580
149950,0migration/023987-21taskset07:21:260
149950,0migration/022414-21kthreadcore07:45:530
149950,0migration/020360-21kthreadcore11:20:560
149950,0migration/020006-21fschecks_count09:00:520
149950,0migration/017440-21kthreadcore07:40:550
149950,0migration/015914-21kthreadcore12:00:530
149950,0migration/015737-21timerandwakeup08:51:010
149950,0migration/014078-21kthreadcore07:15:550
149950,0migration/013890-21taskset11:16:090
149950,0migration/01351-21fschecks_count08:20:510
149950,0migration/012904-21taskset08:04:330
33989943,0cyclictest7553-21awk11:55:542
33989943,0cyclictest28502-21awk08:40:542
33989943,0cyclictest24705-21munin-node10:46:002
33989943,0cyclictest24353-21sadc07:25:392
33989943,0cyclictest13166-21awk07:40:532
33979944,0cyclictest0-21swapper/110:04:131
33979944,0cyclictest0-21swapper/109:34:451
33979943,0cyclictest8436-21awk08:25:531
33979943,0cyclictest3556-21lldpd11:46:331
33979943,0cyclictest3556-21lldpd11:35:031
33979943,0cyclictest3556-21lldpd11:01:031
33979943,0cyclictest3556-21lldpd10:07:031
33979943,0cyclictest3556-21lldpd09:26:021
33979943,0cyclictest3556-21lldpd08:39:231
33979943,0cyclictest3514-21snmpd06:46:231
33979943,0cyclictest3241-21irqbalance11:15:471
33979943,0cyclictest31099-21awk07:05:531
33979943,0cyclictest28937-21ps09:05:561
33979943,0cyclictest28383-21awk08:40:531
33979943,0cyclictest20461-21awk09:00:541
33979943,0cyclictest20061-21awk09:20:541
33979943,0cyclictest15917-21awk11:40:521
33979943,0cyclictest11286-21awk06:50:551
33979943,0cyclictest10860-21awk08:50:541
33969944,0cyclictest0-21swapper/012:10:180
33969944,0cyclictest0-21swapper/010:40:360
33969944,0cyclictest0-21swapper/008:57:200
33969943,0cyclictest8062-21awk11:35:530
33969943,0cyclictest32421-21awk11:30:540
33969943,0cyclictest3241-21irqbalance12:11:460
33969943,0cyclictest3241-21irqbalance09:37:170
33969943,0cyclictest3241-21irqbalance09:19:070
33969943,0cyclictest25476-21awk07:25:540
33969943,0cyclictest24463-21awk11:25:530
33969943,0cyclictest23774-21awk11:45:510
33969943,0cyclictest19531-21awk09:40:540
33969943,0cyclictest17890-21awk06:55:540
33969943,0cyclictest10302-21awk10:15:500
339940,0migration/35859-21cpuspeed_turbos07:35:513
339940,0migration/3491-21kthreadcore11:30:553
339940,0migration/328929-21kthreadcore08:15:563
339940,0migration/323963-21kthreadcore07:45:543
339940,0migration/31819-21sh10:30:533
339940,0migration/311756-21kthreadcore08:25:563
29725040,0irq/27-eth0-tx-29859-21ssh11:26:342
29725040,0irq/27-eth0-tx-27110-21ssh09:25:502
29725040,0irq/27-eth0-tx-24373-21ssh09:41:012
29725040,0irq/27-eth0-tx-22923-21munin-node11:45:582
29725040,0irq/27-eth0-tx-20872-21munin-node08:36:000
29725040,0irq/27-eth0-tx-0-21swapper/212:00:452
29725040,0irq/27-eth0-tx-0-21swapper/211:20:522
29725040,0irq/27-eth0-tx-0-21swapper/211:15:452
29725040,0irq/27-eth0-tx-0-21swapper/211:01:042
29725040,0irq/27-eth0-tx-0-21swapper/210:35:562
29725040,0irq/27-eth0-tx-0-21swapper/210:33:202
29725040,0irq/27-eth0-tx-0-21swapper/209:17:072
29725040,0irq/27-eth0-tx-0-21swapper/209:10:542
29725040,0irq/27-eth0-tx-0-21swapper/208:57:272
29725040,0irq/27-eth0-tx-0-21swapper/008:33:340
29715040,0irq/26-eth0-rx-23467-21munin-node07:20:593
29715040,0irq/26-eth0-rx-0-21swapper/312:06:123
29715040,0irq/26-eth0-rx-0-21swapper/311:40:513
29715040,0irq/26-eth0-rx-0-21swapper/311:36:563
29715040,0irq/26-eth0-rx-0-21swapper/309:36:533
29715040,0irq/26-eth0-rx-0-21swapper/309:16:163
29715040,0irq/26-eth0-rx-0-21swapper/309:10:553
29715040,0irq/26-eth0-rx-0-21swapper/309:00:563
29715040,0irq/26-eth0-rx-0-21swapper/308:57:143
259940,0migration/28294-21kthreadcore07:10:562
259940,0migration/232561-21kernelversion07:30:562
259940,0migration/229356-21switchtime07:01:032
259940,0migration/225973-21runrttasks08:11:282
259940,0migration/224903-21kthreadcore12:05:552
259940,0migration/224150-21kthreadcore08:35:552
259940,0migration/22292-21kthreadcore07:55:552
259940,0migration/219616-21gltestperf07:45:502
259940,0migration/219390-21latency_hist09:00:382
249940,0watchdog/229551-21kthreadcore10:25:572
249940,0watchdog/213119-21tr09:55:572
179940,0migration/18282-21kthreadcore07:35:561
179940,0migration/17311-21gltestperf11:55:521
179940,0migration/16534-21latency_hist08:00:391
179940,0migration/15166-21kthreadcore09:10:541
179940,0migration/14729-21kthreadcore10:50:561
179940,0migration/131429-21kthreadcore08:15:561
179940,0migration/131005-21aten_r1power_po11:50:491
179940,0migration/129954-21runrttasks11:26:521
179940,0migration/12885-21kthreadcore07:30:571
179940,0migration/125805-21unixbench-2d08:11:011
179940,0migration/124831-21irqrtprio07:00:561
179940,0migration/122687-21switchtime06:56:011
179940,0migration/11938-21fschecks_count10:10:521
179940,0migration/11774-21kthreadcore11:10:551
179940,0migration/117548-21kthreadcore11:20:551
179940,0migration/116106-21kthreadcore08:30:561
179940,0migration/115468-21latency09:55:571
179940,0migration/113465-21kthreadcore07:15:541
179940,0migration/11075-21cpuspeed_turbos08:20:501
179940,0migration/110287-21runrttasks10:15:501
169940,0watchdog/17636-21sendmail_mailqu08:46:011
169940,0watchdog/16559-21runrttasks09:37:091
169940,0watchdog/130989-21ssh10:46:201
169940,0watchdog/130403-21ssh11:06:241
169940,0watchdog/129663-21kthreadcore09:45:571
169940,0watchdog/112964-21kthreadcore10:55:561
169940,0watchdog/111316-21munin-node09:16:011
169940,0watchdog/10-21swapper/110:30:401
169940,0watchdog/10-21swapper/110:25:571
169940,0watchdog/10-21swapper/109:51:011
169940,0watchdog/10-21swapper/107:45:531
149940,0migration/03579-21cpuspeed_turbos09:10:500
149940,0migration/027115-21fschecks_time09:45:530
149940,0migration/019003-21kthreadcore10:20:550
149940,0migration/015556-21missed_timers09:55:580
33989932,0cyclictest6623-21kthreadcore06:45:552
33989932,0cyclictest17820-21awk06:55:532
33989932,0cyclictest15152-21awk08:30:542
33989930,0cyclictest30837-21perl07:05:512
33989930,0cyclictest25592-21iostat07:25:552
33979932,0cyclictest3556-21lldpd08:56:421
33979930,0cyclictest14967-21munin-node10:36:021
33969933,0cyclictest24889-21kworker/0:011:55:390
33969933,0cyclictest24889-21kworker/0:011:40:390
33969933,0cyclictest24889-21kworker/0:011:00:420
33969933,0cyclictest24889-21kworker/0:010:55:420
33969933,0cyclictest24889-21kworker/0:009:30:420
33969933,0cyclictest24889-21kworker/0:008:25:400
33969933,0cyclictest24889-21kworker/0:008:05:500
33969933,0cyclictest24889-21kworker/0:007:55:400
33969933,0cyclictest24889-21kworker/0:007:30:400
33969933,0cyclictest24889-21kworker/0:007:05:400
33969933,0cyclictest24889-21kworker/0:006:50:550
33969930,0cyclictest0-21swapper/008:10:490
29715030,0irq/26-eth0-rx-0-21swapper/308:43:123
29715030,0irq/26-eth0-rx-0-21swapper/308:35:493
29715030,0irq/26-eth0-rx-0-21swapper/308:30:503
29715030,0irq/26-eth0-rx-0-21swapper/308:14:473
29715030,0irq/26-eth0-rx-0-21swapper/307:50:543
29715030,0irq/26-eth0-rx-0-21swapper/307:45:163
29715030,0irq/26-eth0-rx-0-21swapper/307:10:503
29715030,0irq/26-eth0-rx-0-21swapper/307:00:513
259930,0migration/211550-21kthreadcore08:25:562
259930,0migration/21146-21cpuspeed_turbos08:20:502
179930,0migration/17072-21diskmemload11:35:421
169930,0watchdog/10-21swapper/112:10:481
169930,0watchdog/10-21swapper/112:00:481
169930,0watchdog/10-21swapper/109:40:531
169930,0watchdog/10-21swapper/108:05:531
169930,0watchdog/10-21swapper/107:55:531
169930,0watchdog/10-21swapper/107:40:491
169930,0watchdog/10-21swapper/107:21:091
169930,0watchdog/10-21swapper/107:11:011
29715020,0irq/26-eth0-rx-0-21swapper/307:30:473
29715020,0irq/26-eth0-rx-0-21swapper/307:05:473
29715020,0irq/26-eth0-rx-0-21swapper/306:46:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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