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2026-07-11 - 18:03

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 Sat Jul 11, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271450,0ktimersoftd/223857-21perf06:49:582
304450350,0irq/25-eth10-21swapper/306:48:523
3019323425,0sleep10-21swapper/106:47:321
3007423220,0sleep00-21swapper/006:46:070
339960,0migration/320260-21sh09:22:333
339960,0migration/320260-21sh09:22:333
339960,0migration/312981-21sh09:19:433
339960,0migration/312981-21sh09:19:433
339960,0migration/311534-21sh11:18:043
304909965,0cyclictest0-21swapper/110:25:451
304899966,0cyclictest28706-21diskmemload11:28:250
304899965,0cyclictest30528-21ps09:30:240
304899960,0cyclictest0-21swapper/008:00:180
29715060,0irq/26-eth0-rx-25962-21sed11:25:263
29715060,0irq/26-eth0-rx-0-21swapper/311:33:503
149960,0migration/07373-21kthreadcore12:15:240
149960,0migration/028259-21latency_hist12:10:060
149960,0migration/027519-21sh11:47:590
8215050,0irq/24-0000:00:4038-21cat11:55:062
8215050,0irq/24-0000:00:12776-21cat10:20:072
339950,0migration/37039-21kthreadcore12:15:233
339950,0migration/35663-21munin-node10:55:243
339950,0migration/35444-21taskset07:16:563
339950,0migration/35416-21fschecks_time10:35:213
339950,0migration/34696-21munin-node11:55:203
339950,0migration/34496-21taskset06:51:463
339950,0migration/3367-21kthreadcore10:30:253
339950,0migration/332285-21kthreadcore08:25:273
339950,0migration/331029-21kthreadcore08:00:253
339950,0migration/329967-21sh08:50:243
339950,0migration/325551-21fschecks_time07:10:233
339950,0migration/325087-21kthreadcore10:45:263
339950,0migration/321270-21munin-node12:05:213
339950,0migration/32020-21timerwakeupswit12:10:313
339950,0migration/318682-21unixbench_singl11:20:333
339950,0migration/317903-21munin-node11:40:263
339950,0migration/314231-21munin-node09:40:233
339950,0migration/312878-21munin-node09:00:183
339950,0migration/312649-21runrttasks09:39:203
339950,0migration/311858-21munin-node07:00:203
339950,0migration/310594-21sh11:35:373
304919955,0cyclictest0-21swapper/210:57:162
304919955,0cyclictest0-21swapper/210:47:012
304919955,0cyclictest0-21swapper/209:02:112
304919954,0cyclictest30354-21awk09:10:242
304909950,0cyclictest0-21swapper/110:56:581
304909950,0cyclictest0-21swapper/107:25:331
304899955,0cyclictest0-21swapper/011:21:000
304899955,0cyclictest0-21swapper/011:05:520
304899952,0cyclictest0-21swapper/009:30:080
29725050,0irq/27-eth0-tx-9734-21cut09:35:252
29725050,0irq/27-eth0-tx-9081-21cut12:15:242
29725050,0irq/27-eth0-tx-8152-21tr08:55:262
29725050,0irq/27-eth0-tx-4904-21cut11:55:202
29725050,0irq/27-eth0-tx-26595-21ssh12:05:342
29725050,0irq/27-eth0-tx-21663-21iostat11:25:242
29725050,0irq/27-eth0-tx-14516-21cut11:40:242
29725050,0irq/27-eth0-tx-12372-21munin-node12:00:302
29725050,0irq/27-eth0-tx-0-21swapper/211:45:302
29725050,0irq/27-eth0-tx-0-21swapper/211:18:492
29725050,0irq/27-eth0-tx-0-21swapper/210:23:382
29725050,0irq/27-eth0-tx-0-21swapper/210:10:382
29725050,0irq/27-eth0-tx-0-21swapper/210:09:292
29725050,0irq/27-eth0-tx-0-21swapper/209:42:452
29725050,0irq/27-eth0-tx-0-21swapper/209:20:212
29725050,0irq/27-eth0-tx-0-21swapper/209:20:212
29725050,0irq/27-eth0-tx-0-21swapper/007:15:190
29725050,0irq/27-eth0-tx-0-21swapper/007:10:250
29715050,0irq/26-eth0-rx-6559-21runrttasks09:33:223
29715050,0irq/26-eth0-rx-4438-21ssh09:13:463
29715050,0irq/26-eth0-rx-4089-21kthreadcore07:40:253
29715050,0irq/26-eth0-rx-29549-21chrt11:10:223
29715050,0irq/26-eth0-rx-27974-21taskset09:26:413
29715050,0irq/26-eth0-rx-21965-21smartctl09:05:223
29715050,0irq/26-eth0-rx-13636-21fschecks_count10:00:193
29715050,0irq/26-eth0-rx-10404-21sendmail_mailqu08:55:303
29715050,0irq/26-eth0-rx-0-21swapper/312:00:173
29715050,0irq/26-eth0-rx-0-21swapper/311:05:353
29715050,0irq/26-eth0-rx-0-21swapper/310:41:223
29715050,0irq/26-eth0-rx-0-21swapper/310:25:213
29715050,0irq/26-eth0-rx-0-21swapper/310:15:253
29715050,0irq/26-eth0-rx-0-21swapper/310:10:263
29715050,0irq/26-eth0-rx-0-21swapper/309:55:303
29715050,0irq/26-eth0-rx-0-21swapper/309:45:123
259950,0migration/231873-21kthreadcore10:30:252
259950,0migration/229354-21aten_r1power_cu09:50:202
259950,0migration/226167-21kthreadcore08:45:252
259950,0migration/221040-21latency_hist09:05:082
259950,0migration/217421-21kthreadcore10:00:232
259950,0migration/213230-21latency08:10:252
259950,0migration/211556-21sh09:15:442
259950,0migration/211556-21sh09:15:442
249950,0watchdog/226894-21kthreadcore07:10:262
179950,0migration/132475-21munin-node08:00:271
179950,0migration/116516-21if_eth008:40:231
169950,0watchdog/119607-21ssh10:21:571
149950,0migration/09079-21kthreadcore07:45:240
149950,0migration/06766-21kthreadcore11:15:240
149950,0migration/06650-21kthreadcore09:35:240
149950,0migration/03997-21taskset11:34:480
149950,0migration/03869-21sh10:13:040
149950,0migration/03857-21kthreadcore07:40:250
149950,0migration/031607-21kthreadcore11:50:250
149950,0migration/030047-21kthreadcore08:25:260
149950,0migration/029304-21fschecks_count11:10:210
149950,0migration/028921-21taskset10:50:130
149950,0migration/028779-21idleruntime-cro10:30:070
149950,0migration/028515-21munin-node12:10:190
149950,0migration/027721-21taskset08:24:590
149950,0migration/027709-21taskset10:47:250
149950,0migration/026795-21idleruntime07:35:230
149950,0migration/026112-21timerandwakeup07:55:300
149950,0migration/025056-21kthreadcore10:05:260
149950,0migration/022453-21irqrtprio09:05:250
149950,0migration/020262-21taskset10:23:510
149950,0migration/020136-21kthreadcore08:40:250
149950,0migration/019512-21kthreadcore08:15:250
149950,0migration/016109-21kthreadcore12:00:240
149950,0migration/014815-21kthreadcore09:20:250
149950,0migration/014815-21kthreadcore09:20:250
149950,0migration/013892-21munin-node10:00:200
149950,0migration/013185-21kthreadcore08:10:250
149950,0migration/012017-21kthreadcore08:35:260
149950,0migration/011935-21runrttasks08:58:310
149950,0migration/011451-21taskset10:16:420
339940,0migration/37424-21taskset08:06:363
339940,0migration/326461-21taskset07:57:003
339940,0migration/324488-21kthreadcore11:45:263
339940,0migration/314641-21taskset08:15:133
339940,0migration/313098-21taskset07:46:353
339940,0migration/310287-21kthreadcore08:10:243
304919944,0cyclictest0-21swapper/212:10:072
304919943,0cyclictest7829-21awk07:45:222
304919943,0cyclictest3514-21snmpd08:00:272
304919943,0cyclictest29803-21awk08:50:232
304919943,0cyclictest2079-21awk08:05:222
304909943,0cyclictest5929-21awk09:55:231
304909943,0cyclictest5900-21awk06:55:241
304909943,0cyclictest5329-21awk11:15:211
304909943,0cyclictest5183-21awk12:15:221
304909943,0cyclictest3514-21snmpd11:20:131
304909943,0cyclictest3514-21snmpd09:54:431
304909943,0cyclictest3514-21snmpd08:20:571
304909943,0cyclictest3514-21snmpd08:19:421
304909943,0cyclictest3514-21snmpd07:47:421
304909943,0cyclictest3514-21snmpd07:05:421
304909943,0cyclictest32610-21awk07:15:241
304909943,0cyclictest29688-21awk11:10:231
304909943,0cyclictest28812-21awk08:25:241
304909943,0cyclictest28363-21sadc11:30:061
304909943,0cyclictest26737-21sadc08:00:081
304909943,0cyclictest22005-21awk10:05:231
304909943,0cyclictest2198-21awk08:05:231
304909943,0cyclictest21898-21awk10:45:241
304909943,0cyclictest21493-21awk11:45:231
304909943,0cyclictest14076-21awk10:00:211
304909943,0cyclictest13623-21awk11:00:221
304899944,0cyclictest28706-21diskmemload10:32:550
304899944,0cyclictest0-21swapper/010:55:180
304899944,0cyclictest0-21swapper/009:42:470
304899943,0cyclictest3099-21awk08:30:220
304899943,0cyclictest13543-21awk07:25:250
304899940,0cyclictest7752-21munin-run08:10:080
29725040,0irq/27-eth0-tx-6360-21irqrtprio09:55:252
29725040,0irq/27-eth0-tx-20738-21munin-node11:05:202
29725040,0irq/27-eth0-tx-12822-21munin-node10:40:212
29725040,0irq/27-eth0-tx-0-21swapper/211:36:052
29725040,0irq/27-eth0-tx-0-21swapper/211:30:382
29725040,0irq/27-eth0-tx-0-21swapper/211:21:092
29725040,0irq/27-eth0-tx-0-21swapper/211:01:352
29725040,0irq/27-eth0-tx-0-21swapper/210:50:112
29725040,0irq/27-eth0-tx-0-21swapper/210:35:222
29725040,0irq/27-eth0-tx-0-21swapper/209:45:242
29725040,0irq/27-eth0-tx-0-21swapper/209:30:182
29725040,0irq/27-eth0-tx-0-21swapper/008:50:200
29725040,0irq/27-eth0-tx-0-21swapper/007:30:240
29725040,0irq/27-eth0-tx-0-21swapper/007:00:220
29715040,0irq/26-eth0-rx-3557-21kthreadcore08:30:243
29715040,0irq/26-eth0-rx-0-21swapper/311:50:183
29715040,0irq/26-eth0-rx-0-21swapper/311:00:273
29715040,0irq/26-eth0-rx-0-21swapper/310:50:493
29715040,0irq/26-eth0-rx-0-21swapper/310:20:253
29715040,0irq/26-eth0-rx-0-21swapper/310:06:203
29715040,0irq/26-eth0-rx-0-21swapper/309:50:403
29715040,0irq/26-eth0-rx-0-21swapper/308:43:583
29715040,0irq/26-eth0-rx-0-21swapper/307:50:233
29715040,0irq/26-eth0-rx-0-21swapper/306:55:313
259940,0migration/28484-21taskset08:32:292
259940,0migration/25460-21fschecks_count06:55:232
259940,0migration/230626-21latency_hist06:50:082
259940,0migration/230057-21kthreadcore08:25:262
259940,0migration/223653-21kthreadcore08:20:242
259940,0migration/223339-21kthreadcore10:25:252
259940,0migration/221852-21df_abs09:25:222
259940,0migration/220314-21runrttasks07:55:152
259940,0migration/218508-21aten_r1power_vo07:05:192
259940,0migration/21738-21kthreadcore07:40:242
259940,0migration/216423-21idleruntime08:40:222
259940,0migration/215269-21fschecks_time08:15:202
259940,0migration/212877-21irqrtprio07:00:242
249940,0watchdog/231315-21grep11:10:252
249940,0watchdog/228904-21kthreadcore07:35:262
249940,0watchdog/213643-21if_eth1.307:25:262
249940,0watchdog/210995-21cut08:35:262
249940,0watchdog/20-21swapper/207:50:262
249940,0watchdog/20-21swapper/207:30:262
249940,0watchdog/20-21swapper/207:15:262
179940,0migration/19161-21kthreadcore10:15:251
179940,0migration/18544-21fschecks_time08:10:201
179940,0migration/18122-21kthreadcore10:35:251
179940,0migration/18059-21kthreadcore11:35:251
179940,0migration/18009-21kthreadcore11:55:251
179940,0migration/15401-21kthreadcore07:40:251
179940,0migration/15311-21munin-node09:15:181
179940,0migration/15311-21munin-node09:15:181
179940,0migration/15275-21fschecks_time08:55:221
179940,0migration/14184-21kthreadcore08:30:241
179940,0migration/130463-21irqrtprio10:10:251
179940,0migration/12775-21sh12:12:041
179940,0migration/124007-21kthreadcore09:25:261
179940,0migration/122301-21kthreadcore12:05:241
179940,0migration/116467-21kthreadcore09:00:241
179940,0migration/116420-21kthreadcore07:00:251
179940,0migration/114521-21kthreadcore10:40:241
179940,0migration/114469-21irqrtprio09:40:241
179940,0migration/113301-21latency_hist09:20:081
179940,0migration/113301-21latency_hist09:20:081
179940,0migration/112183-21runrttasks07:22:161
169940,0watchdog/132250-21kthreadcore08:50:261
169940,0watchdog/128906-21kthreadcore07:35:261
169940,0watchdog/12833-21ssh11:31:371
169940,0watchdog/119184-21ssh11:42:011
169940,0watchdog/11552-21kthreadcore09:30:251
169940,0watchdog/110550-21sed09:35:251
169940,0watchdog/10-21swapper/111:05:251
169940,0watchdog/10-21swapper/109:45:251
169940,0watchdog/10-21swapper/109:10:261
169940,0watchdog/10-21swapper/106:50:261
149940,0migration/09865-21kthreadcore07:20:250
149940,0migration/09741-21kthreadcore10:35:260
149940,0migration/09274-21kthreadcore09:15:250
149940,0migration/09274-21kthreadcore09:15:250
149940,0migration/05832-21kthreadcore11:35:240
149940,0migration/029665-21cpuspeed_turbos09:10:200
304909932,0cyclictest3556-21lldpd10:50:201
304909932,0cyclictest3556-21lldpd08:46:191
304909932,0cyclictest28087-21kthreadcore07:10:261
304909930,0cyclictest29852-21irqstats11:50:241
304909930,0cyclictest19998-21perl07:30:221
304899933,0cyclictest29678-21kworker/0:011:55:080
304899933,0cyclictest29678-21kworker/0:011:40:140
304899933,0cyclictest29678-21kworker/0:011:00:080
304899933,0cyclictest29678-21kworker/0:010:40:120
304899933,0cyclictest29678-21kworker/0:009:55:230
304899933,0cyclictest29678-21kworker/0:009:00:130
304899933,0cyclictest29678-21kworker/0:008:45:110
304899933,0cyclictest29678-21kworker/0:007:50:130
304899933,0cyclictest29678-21kworker/0:007:05:090
304899933,0cyclictest29678-21kworker/0:006:55:090
304899933,0cyclictest29678-21kworker/0:006:50:130
304899932,0cyclictest27053-21sensors09:45:300
304899930,0cyclictest30153-21munin-node09:50:230
29715030,0irq/26-eth0-rx-0-21swapper/308:47:533
29715030,0irq/26-eth0-rx-0-21swapper/308:35:273
29715030,0irq/26-eth0-rx-0-21swapper/308:23:073
29715030,0irq/26-eth0-rx-0-21swapper/307:33:063
29715030,0irq/26-eth0-rx-0-21swapper/307:27:523
29715030,0irq/26-eth0-rx-0-21swapper/307:22:373
29715030,0irq/26-eth0-rx-0-21swapper/307:05:333
169930,0watchdog/128706-21diskmemload10:30:251
169930,0watchdog/10-21swapper/112:00:211
169930,0watchdog/10-21swapper/109:05:261
169930,0watchdog/10-21swapper/108:35:261
169930,0watchdog/10-21swapper/107:50:261
29715020,0irq/26-eth0-rx-0-21swapper/307:35:143
249920,0watchdog/20-21swapper/207:20:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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