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2026-05-22 - 20:35
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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 rack1slot2.osadl.org (updated Fri May 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2733125041,0sleep10-21swapper/107:21:581
2716724231,0sleep00-21swapper/007:20:040
2710423827,0sleep30-21swapper/307:19:233
2726523728,0sleep20-21swapper/207:21:152
339960,0migration/38198-21kthreadcore08:38:363
339960,0migration/328312-21sh12:38:483
339960,0migration/328312-21sh12:38:483
339960,0migration/324191-21irqcore10:28:363
329960,0watchdog/38280-21df10:38:313
329960,0watchdog/325670-21aten_r1power_cu12:03:313
29815060,0irq/29-eth0-tx-17257-21munin-node08:23:370
29815060,0irq/29-eth0-tx-13455-21vmstat09:23:450
29805060,0irq/28-eth0-rx-8762-21cut10:18:373
29805060,0irq/28-eth0-rx-3366-21cat11:28:393
29805060,0irq/28-eth0-rx-2349-21kthreadcore09:38:363
29805060,0irq/28-eth0-rx-21658-21perl08:48:343
275269966,0cyclictest6528-21diskmemload12:30:472
275269965,0cyclictest25953-21kthreadcore09:33:352
27160,0ktimersoftd/20-21swapper/210:23:342
149960,0migration/06492-21fschecks_count11:33:320
149960,0migration/032679-21sh10:50:470
149960,0migration/029794-21sh12:42:570
149960,0migration/029794-21sh12:42:570
149960,0migration/023387-21kthreadcore09:48:380
149960,0migration/022126-21sh11:40:410
149960,0migration/021606-21sh10:25:250
149960,0migration/013208-21kthreadcore11:53:400
4150,0ktimersoftd/00-21swapper/011:03:250
4150,0ktimersoftd/00-21swapper/009:39:100
35150,0ktimersoftd/30-21swapper/311:44:213
339950,0migration/35533-21kthreadcore09:58:373
339950,0migration/34190-21kthreadcore11:48:393
339950,0migration/332750-21fschecks_time09:18:333
339950,0migration/33095-21sh12:25:523
339950,0migration/330467-21cpuspeed_turbos12:43:323
339950,0migration/330367-21munin-node09:33:373
339950,0migration/327072-21kthreadcore09:13:373
339950,0migration/323308-21pmu-power08:23:413
339950,0migration/321065-21kthreadcore09:48:373
339950,0migration/320733-21taskset08:03:203
339950,0migration/318626-21unixbench_singl10:03:453
339950,0migration/31559-21aten_r1power_fr10:53:313
339950,0migration/314765-21idleruntime08:43:353
339950,0migration/312877-21latency_hist12:33:203
339950,0migration/312715-21kthreadcore07:33:363
339950,0migration/312621-21kthreadcore09:43:363
329950,0watchdog/314567-21idleruntime07:58:343
329950,0watchdog/312468-21munin-node11:18:393
329950,0watchdog/311623-21sh11:16:473
329950,0watchdog/310635-21kthreadcore11:53:393
329950,0watchdog/30-21swapper/310:58:313
29815050,0irq/29-eth0-tx-31459-21munin-node07:48:450
29815050,0irq/29-eth0-tx-29424-21grep12:23:372
29815050,0irq/29-eth0-tx-24644-21munin-node09:13:320
29815050,0irq/29-eth0-tx-19341-21munin-node12:18:372
29815050,0irq/29-eth0-tx-0-21swapper/211:28:452
29815050,0irq/29-eth0-tx-0-21swapper/008:38:360
29815050,0irq/29-eth0-tx-0-21swapper/008:30:320
29815050,0irq/29-eth0-tx-0-21swapper/008:13:390
29805050,0irq/28-eth0-rx-8874-21ssh12:09:083
29805050,0irq/28-eth0-rx-31932-21users10:48:463
29805050,0irq/28-eth0-rx-22335-21iostat_ios11:23:353
29805050,0irq/28-eth0-rx-22199-21kthreadcore11:03:373
29805050,0irq/28-eth0-rx-15765-21if_err_eth111:38:333
29805050,0irq/28-eth0-rx-12205-21cut09:23:373
29805050,0irq/28-eth0-rx-0-21swapper/312:48:383
29805050,0irq/28-eth0-rx-0-21swapper/312:28:283
29805050,0irq/28-eth0-rx-0-21swapper/312:18:353
29805050,0irq/28-eth0-rx-0-21swapper/311:58:373
29805050,0irq/28-eth0-rx-0-21swapper/311:35:283
29805050,0irq/28-eth0-rx-0-21swapper/311:11:053
29805050,0irq/28-eth0-rx-0-21swapper/310:08:373
29805050,0irq/28-eth0-rx-0-21swapper/309:28:363
29805050,0irq/28-eth0-rx-0-21swapper/308:08:303
275269955,0cyclictest0-21swapper/211:40:302
275269955,0cyclictest0-21swapper/209:29:292
275269955,0cyclictest0-21swapper/207:38:392
275269954,0cyclictest3524-21snmpd07:27:322
275269950,0cyclictest0-21swapper/212:17:142
275269950,0cyclictest0-21swapper/212:12:582
275269950,0cyclictest0-21swapper/211:04:332
275269950,0cyclictest0-21swapper/210:32:422
275269950,0cyclictest0-21swapper/209:57:332
275189954,0cyclictest12300-21ps12:13:391
275169955,0cyclictest0-21swapper/011:43:460
275169955,0cyclictest0-21swapper/011:00:530
275169953,0cyclictest9359-21kworker/0:112:23:370
27150,0ktimersoftd/20-21swapper/211:44:212
27150,0ktimersoftd/20-21swapper/209:48:432
259950,0migration/231067-21kthreadcore10:13:362
19150,0ktimersoftd/10-21swapper/109:39:101
179950,0migration/17488-21gltestperf12:48:351
179950,0migration/129599-21latency_hist11:28:201
179950,0migration/128839-21sh12:40:181
179950,0migration/128839-21sh12:40:181
179950,0migration/128505-21idleruntime11:08:341
179950,0migration/126615-21kthreadcore07:43:361
179950,0migration/124155-21kthreadcore11:03:381
179950,0migration/120259-21gltestperf12:18:331
179950,0migration/116262-21munin-node10:58:391
179950,0migration/115244-21kthreadcore11:18:381
179950,0migration/114453-21latency_hist11:38:201
179950,0migration/113879-21kthreadcore09:43:371
149950,0migration/09649-21kthreadcore07:53:360
149950,0migration/08688-21runrttasks10:54:510
149950,0migration/08253-21kthreadcore12:28:370
149950,0migration/08129-21taskset12:08:410
149950,0migration/0812-21irqcore09:18:360
149950,0migration/032460-21kthreadcore08:08:370
149950,0migration/029047-21irqcore07:23:350
149950,0migration/027024-21kthreadcore10:28:370
149950,0migration/026634-21gltestperf12:03:340
149950,0migration/026603-21kthreadcore07:43:360
149950,0migration/024444-21aten2.4-expect09:33:290
149950,0migration/022864-21kthreadcore11:23:360
149950,0migration/022756-21kthreadcore10:08:370
149950,0migration/021324-21kthreadcore10:43:380
149950,0migration/021324-21fschecks_count08:03:320
149950,0migration/019750-21sh10:06:450
149950,0migration/018518-21taskset12:16:490
149950,0migration/013723-21kthreadcore09:03:370
149950,0migration/01208-21pmu-power11:08:400
149950,0migration/011405-21kthreadcore10:18:380
149950,0migration/010851-21idleruntime07:33:330
149950,0migration/010831-21fschecks_time08:18:350
149950,0migration/010617-21runrttasks11:14:020
339940,0migration/38716-21kthreadcore07:53:363
339940,0migration/330213-21kthreadcore08:53:373
339940,0migration/330125-21kthreadcore08:28:373
339940,0migration/318992-21kthreadcore10:43:373
339940,0migration/316760-21taskset08:20:293
329940,0watchdog/327748-21munin-node07:23:303
329940,0watchdog/30-21swapper/310:33:393
329940,0watchdog/30-21swapper/310:23:313
329940,0watchdog/30-21swapper/310:13:593
329940,0watchdog/30-21swapper/309:53:553
329940,0watchdog/30-21swapper/308:58:383
329940,0watchdog/30-21swapper/308:13:343
29815040,0irq/29-eth0-tx-9674-21ssh09:43:302
29815040,0irq/29-eth0-tx-6639-21telnet12:48:322
29815040,0irq/29-eth0-tx-17662-21ssh11:58:322
29815040,0irq/29-eth0-tx-16606-21munin-node10:43:372
29815040,0irq/29-eth0-tx-12117-21ssh10:03:312
29815040,0irq/29-eth0-tx-0-21swapper/212:38:252
29815040,0irq/29-eth0-tx-0-21swapper/212:38:252
29815040,0irq/29-eth0-tx-0-21swapper/212:33:312
29815040,0irq/29-eth0-tx-0-21swapper/212:05:312
29815040,0irq/29-eth0-tx-0-21swapper/211:33:352
29815040,0irq/29-eth0-tx-0-21swapper/211:08:512
29815040,0irq/29-eth0-tx-0-21swapper/210:58:282
29815040,0irq/29-eth0-tx-0-21swapper/210:54:002
29815040,0irq/29-eth0-tx-0-21swapper/210:38:242
29815040,0irq/29-eth0-tx-0-21swapper/210:18:212
29815040,0irq/29-eth0-tx-0-21swapper/210:09:552
29815040,0irq/29-eth0-tx-0-21swapper/209:58:262
29815040,0irq/29-eth0-tx-0-21swapper/009:00:140
29815040,0irq/29-eth0-tx-0-21swapper/008:48:400
29805040,0irq/28-eth0-rx-14252-21kthreadcore12:13:403
29805040,0irq/28-eth0-rx-0-21swapper/309:05:483
275269943,0cyclictest7876-21awk09:23:342
275269943,0cyclictest3571-21lldpd11:13:452
275269943,0cyclictest3571-21lldpd09:18:442
275269943,0cyclictest3571-21lldpd08:58:142
275269943,0cyclictest3524-21snmpd09:09:182
275269943,0cyclictest3524-21snmpd09:05:182
275269943,0cyclictest3250-21irqbalance12:43:362
275269943,0cyclictest3250-21irqbalance08:28:462
275269943,0cyclictest3250-21irqbalance08:18:262
275269943,0cyclictest3250-21irqbalance08:13:262
275269943,0cyclictest3250-21irqbalance08:03:262
275269943,0cyclictest3250-21irqbalance07:54:352
275269943,0cyclictest3250-21irqbalance07:48:252
275269943,0cyclictest310-21awk08:33:352
275269943,0cyclictest26344-21awk10:48:352
275269943,0cyclictest25715-21awk09:13:352
275189944,0cyclictest0-21swapper/109:51:181
275189943,0cyclictest5469-21awk12:28:351
275189943,0cyclictest3571-21lldpd11:43:461
275189943,0cyclictest3571-21lldpd10:46:451
275189943,0cyclictest3524-21snmpd09:21:031
275189943,0cyclictest3524-21snmpd08:34:031
275189943,0cyclictest3524-21snmpd08:18:321
275189943,0cyclictest3524-21snmpd08:10:321
275189943,0cyclictest3524-21snmpd07:32:171
275189943,0cyclictest29203-21awk08:53:351
275189943,0cyclictest22005-21awk08:48:361
275169944,0cyclictest0-21swapper/012:02:220
275169944,0cyclictest0-21swapper/011:31:090
275169943,0cyclictest17469-21munin-node09:08:430
275169943,0cyclictest14709-21awk07:58:350
275169943,0cyclictest14080-21awk12:33:350
275169942,0cyclictest9359-21kworker/0:112:48:370
275169942,0cyclictest895-21kworker/0:010:33:350
275169940,0cyclictest3292-21perl07:28:330
275169940,0cyclictest0-21swapper/011:21:340
259940,0migration/2666-21sh09:38:272
259940,0migration/232276-21fschecks_time10:33:332
259940,0migration/230423-21rt-features07:43:402
259940,0migration/229595-21kthreadcore08:08:362
259940,0migration/220974-21latency_hist11:23:202
259940,0migration/220964-21aten_r1power_en08:48:322
259940,0migration/216147-21timerandwakeup07:33:432
259940,0migration/213793-21cpuspeed_turbos07:58:322
259940,0migration/211808-21kthreadcore11:53:392
259940,0migration/210084-21kthreadcore08:38:372
249940,0watchdog/28912-21missed_timers08:58:382
249940,0watchdog/26428-21cut07:28:382
249940,0watchdog/24821-21kthreadcore11:48:392
249940,0watchdog/220759-21kthreadcore08:23:382
249940,0watchdog/212438-21ssh11:18:272
179940,0migration/19636-21sh10:57:301
179940,0migration/18329-21taskset11:53:261
179940,0migration/18085-21irqrtprio08:38:361
179940,0migration/17429-21ksmtuned11:51:331
179940,0migration/14324-21fschecks_count11:13:341
179940,0migration/14305-21kthreadcore07:48:391
179940,0migration/13780-21fschecks_time08:58:331
179940,0migration/13046-21kthreadcore10:33:371
179940,0migration/129354-21irqcore12:23:371
179940,0migration/129201-21kthreadcore09:53:361
179940,0migration/128654-21ksmtuned10:12:321
179940,0migration/127359-21kthreadcore08:28:361
179940,0migration/126444-21kthreadcore08:03:371
179940,0migration/123206-21cpuspeed_turbos10:28:321
179940,0migration/121402-21kthreadcore08:23:381
179940,0migration/121071-21sh11:23:251
179940,0migration/119631-21kthreadcore09:08:361
179940,0migration/115152-21kthreadcore07:33:361
179940,0migration/115146-21irqrtprio08:43:371
179940,0migration/11264-21kthreadcore10:13:361
179940,0migration/110157-21kthreadcore09:23:361
179940,0migration/110078-21kthreadcore10:18:371
169940,0watchdog/19251-21sed10:38:351
169940,0watchdog/13889-21if_eth008:13:341
169940,0watchdog/132677-21ssh10:50:471
169940,0watchdog/13227-21munin-node09:58:351
169940,0watchdog/130225-21munin-node12:43:311
169940,0watchdog/125674-21seq12:03:311
169940,0watchdog/114383-21aten_r1power_po10:23:311
169940,0watchdog/111905-21ssh10:03:231
169940,0watchdog/10-21swapper/107:58:341
169940,0watchdog/10-21swapper/107:38:301
149940,0migration/0790-21kthreadcore08:53:380
149940,0migration/07836-21kthreadcore09:58:370
149940,0migration/018982-21kthreadcore08:43:380
329930,0watchdog/30-21swapper/309:08:303
329930,0watchdog/30-21swapper/308:33:303
329930,0watchdog/30-21swapper/307:38:303
29805030,0irq/28-eth0-rx-30179-21strings07:43:383
29805030,0irq/28-eth0-rx-0-21swapper/307:48:563
29805030,0irq/28-eth0-rx-0-21swapper/307:28:373
275189932,0cyclictest7487-21awk07:53:341
275189932,0cyclictest25285-21head09:33:321
275189932,0cyclictest19362-21cat12:33:441
275169933,0cyclictest9359-21kworker/0:112:43:350
275169933,0cyclictest9359-21kworker/0:112:18:290
275169933,0cyclictest895-21kworker/0:010:38:370
275169933,0cyclictest895-21kworker/0:009:54:050
275169933,0cyclictest12932-21kworker/0:209:28:310
275169933,0cyclictest12932-21kworker/0:208:33:240
275169933,0cyclictest12932-21kworker/0:207:38:260
275169932,0cyclictest607-21awk11:48:350
275169932,0cyclictest10746-21awk09:43:350
275169930,0cyclictest0-21swapper/010:13:310
249930,0watchdog/217237-21kthreadcore08:43:382
169930,0watchdog/127736-21munin-node07:23:301
169930,0watchdog/10-21swapper/112:08:391
169930,0watchdog/10-21swapper/111:59:511
169930,0watchdog/10-21swapper/109:29:141
169930,0watchdog/10-21swapper/109:03:341
275189921,0cyclictest24404-21crond09:13:191
275189920,0cyclictest0-21swapper/111:38:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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