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2026-08-29 - 23:40

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 Sat Aug 29, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450780,0irq/25-eth10-21swapper/306:44:443
1796127874,0sleep00-21swapper/006:44:420
1792423424,0sleep20-21swapper/206:44:202
1168922622,0sleep10-21swapper/106:40:391
339960,0migration/37742-21cpuspeed_turbos09:00:393
339960,0migration/35695-21sh09:39:053
339960,0migration/330492-21sh08:52:433
339960,0migration/324526-21sh12:11:343
29715060,0irq/26-eth0-rx-8955-21awk11:40:503
29715060,0irq/26-eth0-rx-0-21swapper/311:29:093
181009966,0cyclictest0-21swapper/208:10:402
180989960,0cyclictest0-21swapper/009:51:580
149960,0migration/03647-21sh10:16:280
149960,0migration/027568-21kthreadcore06:50:450
149960,0migration/021917-21sh09:49:540
149960,0migration/020602-21taskset10:29:380
339950,0migration/38696-21taskset08:38:173
339950,0migration/37414-21if_eth109:40:443
339950,0migration/37412-21munin-node09:20:403
339950,0migration/3418-21kthreadcore09:55:453
339950,0migration/332072-21kthreadcore08:30:453
339950,0migration/331311-21taskset07:16:363
339950,0migration/324496-21munin-node11:50:493
339950,0migration/323027-21kthreadcore10:30:443
339950,0migration/322873-21kthreadcore07:10:453
339950,0migration/32188-21kthreadcore07:45:443
339950,0migration/318988-21runrttasks10:46:353
339950,0migration/316366-21munin-node12:05:523
339950,0migration/314277-21taskset08:17:093
339950,0migration/313366-21kthreadcore07:05:433
339950,0migration/31204-21latency_hist08:10:283
29725050,0irq/27-eth0-tx-8017-21iostat_ios09:20:432
29725050,0irq/27-eth0-tx-6492-21grep10:00:412
29725050,0irq/27-eth0-tx-4945-21ssh09:36:482
29725050,0irq/27-eth0-tx-29443-21kthreadcore11:35:422
29725050,0irq/27-eth0-tx-27398-21gltestperf11:55:402
29725050,0irq/27-eth0-tx-23703-21ssh08:50:362
29725050,0irq/27-eth0-tx-2210-21munin-node12:00:522
29725050,0irq/27-eth0-tx-22002-21ssh08:46:160
29725050,0irq/27-eth0-tx-19368-21yum10:25:522
29725050,0irq/27-eth0-tx-1402-21munin-node08:10:450
29725050,0irq/27-eth0-tx-10225-21munin-node12:05:402
29725050,0irq/27-eth0-tx-10205-21ssh11:00:512
29725050,0irq/27-eth0-tx-0-21swapper/212:10:432
29725050,0irq/27-eth0-tx-0-21swapper/211:50:512
29725050,0irq/27-eth0-tx-0-21swapper/210:45:282
29725050,0irq/27-eth0-tx-0-21swapper/210:16:072
29725050,0irq/27-eth0-tx-0-21swapper/209:32:182
29725050,0irq/27-eth0-tx-0-21swapper/209:10:482
29725050,0irq/27-eth0-tx-0-21swapper/209:10:482
29725050,0irq/27-eth0-tx-0-21swapper/008:25:400
29725050,0irq/27-eth0-tx-0-21swapper/007:20:430
29715050,0irq/26-eth0-rx-9133-21kthreadcore11:00:443
29715050,0irq/26-eth0-rx-3250-21awk12:00:453
29715050,0irq/26-eth0-rx-32204-21kthreadcore06:55:463
29715050,0irq/26-eth0-rx-31923-21grep10:55:443
29715050,0irq/26-eth0-rx-28686-21python09:30:503
29715050,0irq/26-eth0-rx-2371-21processes10:35:483
29715050,0irq/26-eth0-rx-2367-21kthreadcore09:15:433
29715050,0irq/26-eth0-rx-21075-21cat11:30:443
29715050,0irq/26-eth0-rx-15506-21sed09:45:423
29715050,0irq/26-eth0-rx-13245-21ssh10:04:393
29715050,0irq/26-eth0-rx-13009-21interrupts11:05:433
29715050,0irq/26-eth0-rx-11426-21perl11:45:393
29715050,0irq/26-eth0-rx-0-21swapper/311:58:213
29715050,0irq/26-eth0-rx-0-21swapper/311:22:053
29715050,0irq/26-eth0-rx-0-21swapper/311:16:443
29715050,0irq/26-eth0-rx-0-21swapper/310:52:393
29715050,0irq/26-eth0-rx-0-21swapper/310:23:273
29715050,0irq/26-eth0-rx-0-21swapper/309:10:453
29715050,0irq/26-eth0-rx-0-21swapper/309:10:453
29715050,0irq/26-eth0-rx-0-21swapper/309:09:033
29715050,0irq/26-eth0-rx-0-21swapper/308:45:443
27150,0ktimersoftd/20-21swapper/210:11:172
259950,0migration/2415-21munin-node07:20:432
259950,0migration/232509-21munin-node08:55:402
259950,0migration/229125-21irqrtprio11:15:432
259950,0migration/217642-21sh11:26:092
259950,0migration/215737-21latency_hist08:45:282
259950,0migration/211500-21kthreadcore09:40:472
249950,0watchdog/26240-21grep08:35:452
249950,0watchdog/20-21swapper/206:55:462
181009955,0cyclictest0-21swapper/209:55:222
181009950,0cyclictest0-21swapper/211:20:302
181009950,0cyclictest0-21swapper/211:06:372
181009950,0cyclictest0-21swapper/210:43:552
181009950,0cyclictest0-21swapper/210:31:562
181009950,0cyclictest0-21swapper/209:46:222
181009950,0cyclictest0-21swapper/209:20:122
180999955,0cyclictest15529-21diskmemload12:06:271
180999955,0cyclictest15529-21diskmemload11:59:411
180999950,0cyclictest0-21swapper/111:43:171
180989950,0cyclictest0-21swapper/010:14:210
180989950,0cyclictest0-21swapper/008:57:440
179950,0migration/19499-21kthreadcore09:00:441
179950,0migration/15580-21munin-node10:40:411
179950,0migration/13175-21munin-node12:00:451
179950,0migration/129483-21munin-node08:50:511
179950,0migration/129152-21sh10:35:391
179950,0migration/124764-21latency_hist06:50:281
179950,0migration/122345-21sh09:50:321
179950,0migration/12123-21kthreadcore07:45:441
179950,0migration/119871-21latency_hist11:10:261
179950,0migration/118835-21fschecks_time12:10:411
179950,0migration/117832-21switchtime11:05:501
179950,0migration/114504-21kernelversion10:25:441
179950,0migration/112138-21pmu-power09:40:501
169950,0watchdog/17840-21if_err_eth009:20:411
169950,0watchdog/17723-21tr11:20:451
169950,0watchdog/129678-21munin-node10:15:411
169950,0watchdog/128276-21iostat11:35:411
169950,0watchdog/128029-21kthreadcore07:40:461
149950,0migration/07458-21taskset09:00:290
149950,0migration/06358-21kthreadcore10:40:430
149950,0migration/0620-21kthreadcore10:35:450
149950,0migration/05880-21sh09:39:380
149950,0migration/04008-21kthreadcore08:35:450
149950,0migration/032410-21kthreadcore08:30:450
149950,0migration/031941-21fschecks_time09:15:390
149950,0migration/029307-21kthreadcore08:05:440
149950,0migration/02908-21kthreadcore06:55:470
149950,0migration/027391-21gltestperf11:55:400
149950,0migration/026196-21sh11:54:570
149950,0migration/026119-21latency_hist07:40:280
149950,0migration/023971-21kthreadcore10:30:440
149950,0migration/023582-21aten_r1power_vo09:10:400
149950,0migration/023582-21aten_r1power_vo09:10:400
149950,0migration/023269-21kthreadcore11:10:450
149950,0migration/021680-21kthreadcore07:10:450
149950,0migration/021562-21munin-node10:50:450
149950,0migration/018606-21unixbench-2d10:45:510
149950,0migration/01835-21sensors_temp10:55:480
149950,0migration/017656-21kthreadcore09:05:430
149950,0migration/016341-21kthreadcore07:55:440
149950,0migration/015276-21kthreadcore11:25:440
149950,0migration/012913-21timerwakeupswit09:20:500
149950,0migration/012784-21kthreadcore11:45:420
149950,0migration/010301-21kthreadcore10:20:460
339940,0migration/38201-21kthreadcore07:25:443
339940,0migration/34351-21kthreadcore08:55:443
339940,0migration/331487-21kthreadcore10:15:443
339940,0migration/327432-21kthreadcore06:50:453
339940,0migration/326104-21runrttasks11:10:563
339940,0migration/325029-21kthreadcore10:10:473
29725040,0irq/27-eth0-tx-19942-21munin-node11:10:502
29725040,0irq/27-eth0-tx-19101-21tr09:05:442
29725040,0irq/27-eth0-tx-0-21swapper/211:45:422
29725040,0irq/27-eth0-tx-0-21swapper/211:40:402
29725040,0irq/27-eth0-tx-0-21swapper/211:31:322
29725040,0irq/27-eth0-tx-0-21swapper/210:35:562
29725040,0irq/27-eth0-tx-0-21swapper/210:20:402
29725040,0irq/27-eth0-tx-0-21swapper/210:05:272
29725040,0irq/27-eth0-tx-0-21swapper/209:25:402
29725040,0irq/27-eth0-tx-0-21swapper/209:01:212
29725040,0irq/27-eth0-tx-0-21swapper/007:28:550
29715040,0irq/26-eth0-rx-0-21swapper/311:35:493
29715040,0irq/26-eth0-rx-0-21swapper/310:40:343
29715040,0irq/26-eth0-rx-0-21swapper/310:25:433
29715040,0irq/26-eth0-rx-0-21swapper/310:05:423
29715040,0irq/26-eth0-rx-0-21swapper/309:51:293
29715040,0irq/26-eth0-rx-0-21swapper/309:29:023
29715040,0irq/26-eth0-rx-0-21swapper/307:40:453
29715040,0irq/26-eth0-rx-0-21swapper/307:00:453
259940,0migration/2638-21cpuspeed_turbos07:45:402
259940,0migration/25434-21cpuspeed_turbos07:00:412
259940,0migration/232373-21kthreadcore08:30:452
259940,0migration/230742-21fschecks_count09:55:412
259940,0migration/225690-21munin-node07:15:422
259940,0migration/221670-21kthreadcore07:35:452
259940,0migration/221513-21munin-node10:50:442
259940,0migration/210593-21kthreadcore08:40:442
249940,0watchdog/228027-21kthreadcore07:40:462
249940,0watchdog/227027-21processes08:25:502
249940,0watchdog/224025-21switchtime06:45:502
249940,0watchdog/212033-21wc07:25:502
249940,0watchdog/20-21swapper/210:55:412
249940,0watchdog/20-21swapper/206:51:182
181009943,0cyclictest9088-21awk08:15:442
181009943,0cyclictest3241-21irqbalance07:55:462
181009943,0cyclictest21206-21sadc08:25:282
181009943,0cyclictest19456-21awk07:10:432
181009943,0cyclictest12873-21awk07:05:422
180999944,0cyclictest0-21swapper/108:35:501
180999943,0cyclictest4939-21awk11:00:411
180999943,0cyclictest3556-21lldpd10:06:551
180999943,0cyclictest3556-21lldpd08:47:551
180999943,0cyclictest3556-21lldpd08:09:551
180999943,0cyclictest3514-21snmpd09:58:171
180999943,0cyclictest3514-21snmpd08:45:171
180999943,0cyclictest3514-21snmpd07:35:321
180999943,0cyclictest3514-21snmpd07:28:021
180999943,0cyclictest3514-21snmpd07:24:321
180999943,0cyclictest32220-21awk09:15:401
180999943,0cyclictest25873-21awk06:50:431
180999943,0cyclictest2358-21awk08:10:441
180999943,0cyclictest22749-21awk10:10:451
180999943,0cyclictest21487-21awk10:50:441
180999943,0cyclictest21389-21awk08:00:441
180999943,0cyclictest19682-21awk11:50:421
180999943,0cyclictest16322-21awk09:05:411
180999943,0cyclictest14829-21awk07:55:431
180999943,0cyclictest12372-21awk11:25:421
180999940,0cyclictest0-21swapper/110:03:291
180989944,0cyclictest15713-21kworker/0:109:33:180
180989944,0cyclictest15529-21diskmemload11:30:390
180989944,0cyclictest0-21swapper/012:08:390
180989944,0cyclictest0-21swapper/011:22:080
180989943,0cyclictest9129-21munin-node08:40:510
180989943,0cyclictest9064-21awk08:15:440
180989943,0cyclictest9055-21kworker/0:108:02:330
180989943,0cyclictest3514-21snmpd07:18:170
180989943,0cyclictest3514-21snmpd07:04:020
180989943,0cyclictest3241-21irqbalance12:10:450
180989943,0cyclictest3241-21irqbalance11:16:150
180989943,0cyclictest3241-21irqbalance11:06:250
180989943,0cyclictest3241-21irqbalance11:01:150
180989943,0cyclictest3241-21irqbalance09:28:450
180989943,0cyclictest15737-21awk08:20:430
180989943,0cyclictest15713-21kworker/0:111:36:560
180989943,0cyclictest10548-21sadc11:45:260
179940,0migration/19538-21kthreadcore08:15:451
179940,0migration/132171-21kthreadcore09:35:441
179940,0migration/126523-21kthreadcore07:15:451
179940,0migration/126445-21kthreadcore09:10:451
179940,0migration/126445-21kthreadcore09:10:451
179940,0migration/125659-21ksmtuned11:31:221
179940,0migration/120520-21kthreadcore07:10:451
179940,0migration/116283-21kthreadcore09:25:451
179940,0migration/113482-21fschecks_time07:30:411
169940,0watchdog/15657-21diskstats10:20:411
169940,0watchdog/12998-21ssh11:20:051
169940,0watchdog/126397-21kthreadcore09:30:451
169940,0watchdog/122836-21kthreadcore08:25:461
169940,0watchdog/117851-21unixbench_singl07:05:501
169940,0watchdog/10-21swapper/110:55:411
169940,0watchdog/10-21swapper/110:45:451
169940,0watchdog/10-21swapper/108:30:491
169940,0watchdog/10-21swapper/108:20:461
149940,0migration/06427-21fschecks_count10:00:410
149940,0migration/027692-21kthreadcore08:50:460
149940,0migration/021988-21kthreadcore06:45:450
149940,0migration/019449-21pmu-power10:05:470
29715030,0irq/26-eth0-rx-0-21swapper/308:40:423
29715030,0irq/26-eth0-rx-0-21swapper/308:26:253
29715030,0irq/26-eth0-rx-0-21swapper/308:22:003
29715030,0irq/26-eth0-rx-0-21swapper/308:10:403
29715030,0irq/26-eth0-rx-0-21swapper/308:00:413
29715030,0irq/26-eth0-rx-0-21swapper/307:55:393
29715030,0irq/26-eth0-rx-0-21swapper/307:50:383
29715030,0irq/26-eth0-rx-0-21swapper/307:30:493
29715030,0irq/26-eth0-rx-0-21swapper/307:20:403
29715030,0irq/26-eth0-rx-0-21swapper/306:47:463
249930,0watchdog/20-21swapper/208:00:462
181009932,0cyclictest15523-21kthreadcore07:30:452
181009930,0cyclictest7296-21aten_r1power_po07:50:382
180999932,0cyclictest31739-21awk06:55:441
180999932,0cyclictest2974-21kthreadcore08:55:441
180999932,0cyclictest26382-21kthreadcore10:30:451
180999932,0cyclictest15402-21awk09:45:411
180999932,0cyclictest10728-21cat11:45:261
180989933,0cyclictest9055-21kworker/0:107:50:290
180989933,0cyclictest9055-21kworker/0:107:45:310
180989933,0cyclictest9055-21kworker/0:107:35:310
180989933,0cyclictest9055-21kworker/0:107:30:290
180989933,0cyclictest9055-21kworker/0:107:05:290
180989932,0cyclictest31152-21awk09:55:430
180989930,0cyclictest6807-21df09:40:410
180989930,0cyclictest2855-21fschecks_time12:00:430
169930,0watchdog/10-21swapper/107:50:381
169930,0watchdog/10-21swapper/107:00:461
29715020,0irq/26-eth0-rx-0-21swapper/307:35:293
181009920,0cyclictest27057-21latency_hist08:05:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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