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2026-08-01 - 19:49

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 Aug 01, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2583928079,0sleep00-21swapper/006:43:530
2595524030,0sleep10-21swapper/106:45:141
304450350,0irq/25-eth10-21swapper/306:43:523
1981322824,0sleep20-21swapper/206:43:192
169970,0watchdog/10-21swapper/108:13:261
8215060,0irq/24-0000:00:11011-21munin-run08:38:072
339960,0migration/35136-21sh10:57:473
339960,0migration/311397-21munin-node10:58:293
29725060,0irq/27-eth0-tx-29306-21munin-node08:03:300
29725060,0irq/27-eth0-tx-0-21swapper/211:37:552
29715060,0irq/26-eth0-rx-23963-21perl10:08:203
29715060,0irq/26-eth0-rx-15359-21cut11:43:243
262719966,0cyclictest24322-21diskmemload09:37:292
262709965,0cyclictest0-21swapper/110:46:021
262709960,0cyclictest0-21swapper/111:35:141
8215050,0irq/24-0000:00:19968-21munin-run11:48:072
8215050,0irq/24-0000:00:14400-21idleruntime-cro10:23:072
4150,0ktimersoftd/00-21swapper/009:48:010
339950,0migration/39170-21irqcore09:38:253
339950,0migration/38869-21munin-node08:08:263
339950,0migration/38760-21df_abs08:58:183
339950,0migration/37669-21cpuspeed_turbos06:58:193
339950,0migration/34264-21kthreadcore07:43:253
339950,0migration/331598-21munin-node10:13:233
339950,0migration/33105-21kthreadcore06:53:233
339950,0migration/329719-21kthreadcore11:53:243
339950,0migration/326782-21kthreadcore07:33:243
339950,0migration/32438-21kthreadcore09:13:253
339950,0migration/323497-21latency_hist08:23:073
339950,0migration/321813-21irqcore11:28:223
339950,0migration/321678-21kthreadcore08:18:263
339950,0migration/321186-21switchtime10:03:313
339950,0migration/318192-21kthreadcore07:53:243
339950,0migration/317847-21kernelversion09:03:253
339950,0migration/315964-21sh09:22:393
339950,0migration/314008-21rt-features07:23:293
29725050,0irq/27-eth0-tx-30897-21ssh08:49:260
29725050,0irq/27-eth0-tx-28833-21ssh10:50:352
29725050,0irq/27-eth0-tx-28694-21irqcore12:13:232
29725050,0irq/27-eth0-tx-22965-21ssh09:24:442
29725050,0irq/27-eth0-tx-15345-21munin-node10:03:302
29725050,0irq/27-eth0-tx-15082-21df_inode10:23:202
29725050,0irq/27-eth0-tx-0-21swapper/211:13:232
29725050,0irq/27-eth0-tx-0-21swapper/211:07:082
29725050,0irq/27-eth0-tx-0-21swapper/008:43:220
29725050,0irq/27-eth0-tx-0-21swapper/007:50:440
29715050,0irq/26-eth0-rx-7436-21cut11:58:243
29715050,0irq/26-eth0-rx-7302-21ssh09:36:563
29715050,0irq/26-eth0-rx-69762sleep309:57:433
29715050,0irq/26-eth0-rx-6932-21kthreadcore11:38:243
29715050,0irq/26-eth0-rx-26774-21kthreadcore07:58:243
29715050,0irq/26-eth0-rx-22091-21cat11:48:243
29715050,0irq/26-eth0-rx-14780-21ntpdc07:48:283
29715050,0irq/26-eth0-rx-13712-21ssh10:21:013
29715050,0irq/26-eth0-rx-12618-21cut08:38:263
29715050,0irq/26-eth0-rx-12092-21munin-node12:03:213
29715050,0irq/26-eth0-rx-11627-21grep10:38:263
29715050,0irq/26-eth0-rx-0-21swapper/311:26:273
29715050,0irq/26-eth0-rx-0-21swapper/311:20:203
29715050,0irq/26-eth0-rx-0-21swapper/311:13:123
29715050,0irq/26-eth0-rx-0-21swapper/309:49:023
29715050,0irq/26-eth0-rx-0-21swapper/309:43:263
29715050,0irq/26-eth0-rx-0-21swapper/309:30:273
29715050,0irq/26-eth0-rx-0-21swapper/309:23:243
29715050,0irq/26-eth0-rx-0-21swapper/309:08:233
27150,0ktimersoftd/20-21swapper/210:30:182
262719955,0cyclictest0-21swapper/211:48:302
262719955,0cyclictest0-21swapper/210:09:492
262709955,0cyclictest0-21swapper/111:44:511
262709955,0cyclictest0-21swapper/110:23:201
262709955,0cyclictest0-21swapper/110:10:061
262709955,0cyclictest0-21swapper/109:19:481
262709950,0cyclictest0-21swapper/112:09:361
262709950,0cyclictest0-21swapper/111:59:591
262709950,0cyclictest0-21swapper/111:41:041
262709950,0cyclictest0-21swapper/111:08:541
262709950,0cyclictest0-21swapper/109:11:551
262699954,0cyclictest17374-21awk09:23:220
259950,0migration/231214-21runrttasks09:30:342
259950,0migration/226555-21kthreadcore08:23:242
259950,0migration/226186-21ntp_offset07:08:282
259950,0migration/218330-21munin-node08:43:202
259950,0migration/210097-21latency_hist08:13:072
249950,0watchdog/25834-21cut07:43:262
19150,0ktimersoftd/10-21swapper/108:08:131
179950,0migration/15721-21munin-node08:53:271
179950,0migration/1548-21latency_hist06:53:071
179950,0migration/119031-21sh11:23:371
179950,0migration/118726-21idleruntime08:43:211
169950,0watchdog/16357-21ssh09:34:051
149950,0migration/0830-21kthreadcore09:53:240
149950,0migration/06713-21kthreadcore07:18:280
149950,0migration/03831-21aten_r1power_po11:58:180
149950,0migration/031464-21sh09:31:220
149950,0migration/031367-21munin-node10:13:220
149950,0migration/030163-21latency_hist08:28:070
149950,0migration/029065-21kthreadcore09:08:250
149950,0migration/02691-21taskset11:34:090
149950,0migration/026904-21kthreadcore10:48:270
149950,0migration/026565-21kthreadcore08:23:240
149950,0migration/021144-21kthreadcore07:53:250
149950,0migration/021093-21kthreadcore08:18:250
149950,0migration/01903-21taskset12:15:130
149950,0migration/017851-21kthreadcore11:03:240
149950,0migration/015409-21aten_r1power_en10:03:190
149950,0migration/014582-21fschecks_count07:03:210
149950,0migration/01321-21sh11:53:280
149950,0migration/012785-21latency_hist11:23:070
149950,0migration/012485-21run-parts10:39:070
149950,0migration/011561-21kthreadcore08:58:230
149950,0migration/010885-21kthreadcore09:58:260
8215040,0irq/24-0000:00:0-21swapper/208:48:072
339940,0migration/327211-21latency_hist07:13:073
339940,0migration/325953-21diskmemload12:09:033
339940,0migration/324234-21kthreadcore10:28:263
339940,0migration/317890-21kthreadcore10:43:253
339940,0migration/310229-21kthreadcore09:58:263
29725040,0irq/27-eth0-tx-3580-21munin-node08:08:250
29725040,0irq/27-eth0-tx-31204-21ssh10:13:212
29725040,0irq/27-eth0-tx-0-21swapper/211:38:572
29725040,0irq/27-eth0-tx-0-21swapper/211:22:152
29725040,0irq/27-eth0-tx-0-21swapper/210:55:132
29725040,0irq/27-eth0-tx-0-21swapper/210:33:522
29725040,0irq/27-eth0-tx-0-21swapper/209:48:352
29725040,0irq/27-eth0-tx-0-21swapper/209:44:162
29725040,0irq/27-eth0-tx-0-21swapper/209:20:002
29725040,0irq/27-eth0-tx-0-21swapper/209:13:182
29725040,0irq/27-eth0-tx-0-21swapper/209:03:232
29725040,0irq/27-eth0-tx-0-21swapper/007:28:270
29725040,0irq/27-eth0-tx-0-21swapper/006:53:210
29715040,0irq/26-eth0-rx-26118-21grep11:08:243
29715040,0irq/26-eth0-rx-0-21swapper/312:13:153
29715040,0irq/26-eth0-rx-0-21swapper/311:33:513
29715040,0irq/26-eth0-rx-0-21swapper/311:03:243
29715040,0irq/26-eth0-rx-0-21swapper/310:50:393
29715040,0irq/26-eth0-rx-0-21swapper/310:34:003
29715040,0irq/26-eth0-rx-0-21swapper/310:23:253
29715040,0irq/26-eth0-rx-0-21swapper/308:53:223
29715040,0irq/26-eth0-rx-0-21swapper/308:48:173
29715040,0irq/26-eth0-rx-0-21swapper/307:18:223
262719943,0cyclictest3556-21lldpd11:28:352
262719943,0cyclictest3556-21lldpd11:09:362
262719943,0cyclictest3556-21lldpd10:43:362
262719943,0cyclictest3556-21lldpd08:15:052
262719943,0cyclictest3556-21lldpd07:59:342
262719943,0cyclictest3556-21lldpd07:05:342
262719943,0cyclictest3556-21lldpd07:02:342
262719943,0cyclictest29171-21awk07:38:242
262719943,0cyclictest27465-21awk06:48:232
262719943,0cyclictest25568-21awk09:08:222
262719941,0cyclictest0-21swapper/210:58:192
262719940,0cyclictest0-21swapper/210:38:082
262709944,0cyclictest25551-21cut09:28:241
262709944,0cyclictest15404-21telnet10:03:191
262709944,0cyclictest0-21swapper/109:24:131
262709944,0cyclictest0-21swapper/107:02:101
262709943,0cyclictest3556-21lldpd10:54:351
262709943,0cyclictest3556-21lldpd08:00:351
262709943,0cyclictest3514-21snmpd12:04:021
262709943,0cyclictest3514-21snmpd07:36:461
262709943,0cyclictest3514-21snmpd07:18:461
262709943,0cyclictest3514-21snmpd07:17:461
262709943,0cyclictest3315-21sadc08:08:071
262709943,0cyclictest3241-21irqbalance10:33:551
262709943,0cyclictest3241-21irqbalance09:04:461
262709943,0cyclictest29218-21awk07:38:241
262709943,0cyclictest25564-21awk08:48:221
262699944,0cyclictest0-21swapper/010:53:570
262699943,0cyclictest786-21awk09:33:240
262699943,0cyclictest6486-21awk10:58:220
262699943,0cyclictest3514-21snmpd08:35:320
262699943,0cyclictest3514-21snmpd07:15:160
262699943,0cyclictest3241-21irqbalance12:08:550
262699943,0cyclictest3241-21irqbalance12:04:450
262699943,0cyclictest3241-21irqbalance11:48:250
262699943,0cyclictest3241-21irqbalance11:39:050
262699943,0cyclictest3241-21irqbalance11:28:350
262699943,0cyclictest3241-21irqbalance09:38:550
262699943,0cyclictest3241-21irqbalance09:18:460
262699943,0cyclictest3241-21irqbalance09:17:160
262699943,0cyclictest3241-21irqbalance08:13:260
262699943,0cyclictest3241-21irqbalance07:59:060
262699943,0cyclictest3241-21irqbalance07:43:460
262699943,0cyclictest3241-21irqbalance07:38:560
262699943,0cyclictest3241-21irqbalance07:34:160
262699943,0cyclictest3241-21irqbalance07:23:160
262699943,0cyclictest27338-21awk06:48:230
262699943,0cyclictest24183-21awk10:08:220
262699943,0cyclictest15563-21awk10:23:220
262699943,0cyclictest13199-21awk11:43:210
259940,0migration/28517-21taskset07:23:202
259940,0migration/26593-21kthreadcore11:58:242
259940,0migration/23143-21kthreadcore07:18:272
259940,0migration/224952-21kthreadcore07:33:242
259940,0migration/221992-21kthreadcore12:08:242
259940,0migration/21989-21kthreadcore08:53:242
259940,0migration/219640-21kthreadcore07:53:252
259940,0migration/215050-21kthreadcore12:03:262
259940,0migration/215032-21runrttasks07:28:122
259940,0migration/214324-21timerandwakeup08:58:292
259940,0migration/214219-21kthreadcore07:48:272
259940,0migration/213146-21kthreadcore08:38:262
249940,0watchdog/29309-21ssh09:38:252
249940,0watchdog/232602-21idleruntime09:53:212
249940,0watchdog/231320-21kthreadcore07:13:262
249940,0watchdog/230868-21kthreadcore11:53:252
249940,0watchdog/219047-21ssh11:23:412
249940,0watchdog/21681-21interrupts06:53:222
249940,0watchdog/21221-21kthreadcore08:03:262
249940,0watchdog/20-21swapper/209:58:212
249940,0watchdog/20-21swapper/208:18:262
179940,0migration/19953-21kthreadcore10:38:241
179940,0migration/19359-21kthreadcore08:33:261
179940,0migration/18900-21fschecks_count07:23:211
179940,0migration/125886-21kthreadcore09:48:261
179940,0migration/123536-21kthreadcore10:48:261
179940,0migration/122850-21kthreadcore07:08:261
179940,0migration/118958-21kthreadcore08:18:251
179940,0migration/118446-21kthreadcore07:03:251
179940,0migration/115789-21latency_hist09:43:071
179940,0migration/113073-21sh09:58:301
179940,0migration/113017-21kthreadcore08:58:241
169940,0watchdog/1766-21aten_r1power_po06:53:181
169940,0watchdog/15563-21ssh10:15:291
169940,0watchdog/132594-21idleruntime09:53:211
169940,0watchdog/132567-21kthreadcore12:13:251
169940,0watchdog/130867-21kthreadcore11:53:251
169940,0watchdog/122852-21egrep10:28:211
169940,0watchdog/120706-21fschecks_count11:48:211
169940,0watchdog/10-21swapper/111:18:211
169940,0watchdog/10-21swapper/111:13:291
169940,0watchdog/10-21swapper/110:18:251
169940,0watchdog/10-21swapper/109:13:251
169940,0watchdog/10-21swapper/107:48:261
169940,0watchdog/10-21swapper/107:43:261
169940,0watchdog/10-21swapper/107:28:261
149940,0migration/07681-21cpuspeed_turbos06:58:190
149940,0migration/06758-21sh10:18:190
149940,0migration/06541-21taskset08:54:030
149940,0migration/04636-21sh10:34:310
149940,0migration/030600-21irqrtprio11:13:230
149940,0migration/025329-21kthreadcore09:48:260
149940,0migration/025316-21kthreadcore07:08:270
149940,0migration/020252-21sh10:43:320
149940,0migration/016979-21switchtime08:38:310
35130,0ktimersoftd/30-21swapper/308:03:113
29715030,0irq/26-eth0-rx-0-21swapper/308:47:003
29715030,0irq/26-eth0-rx-0-21swapper/308:33:223
29715030,0irq/26-eth0-rx-0-21swapper/308:28:233
29715030,0irq/26-eth0-rx-0-21swapper/308:13:213
29715030,0irq/26-eth0-rx-0-21swapper/307:28:203
29715030,0irq/26-eth0-rx-0-21swapper/307:13:203
29715030,0irq/26-eth0-rx-0-21swapper/307:04:353
29715030,0irq/26-eth0-rx-0-21swapper/306:50:373
262719932,0cyclictest3514-21snmpd08:28:472
262709932,0cyclictest706-21kthreadcore08:28:251
262709932,0cyclictest5392-21wc10:58:071
262709932,0cyclictest3556-21lldpd08:27:051
262709932,0cyclictest3514-21snmpd11:28:321
262709932,0cyclictest21625-21sensors07:53:291
262709932,0cyclictest15504-21kthreadcore11:03:231
262709930,0cyclictest0-21swapper/109:38:131
262699932,0cyclictest5807-21awk11:18:220
262699932,0cyclictest27182-21sensors11:08:290
262699932,0cyclictest24704-21kthreadcore10:28:260
169930,0watchdog/10-21swapper/108:38:261
29715020,0irq/26-eth0-rx-0-21swapper/307:38:093
262699921,0cyclictest16404-21cat09:03:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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