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2026-08-05 - 03:10
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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 the highest latencies:
System rack1slot2.osadl.org (updated Wed Aug 05, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
476227067,0sleep20-21swapper/219:25:292
474526564,0sleep00-21swapper/019:25:150
3050024839,0sleep30-21swapper/319:24:303
499723127,0sleep10-21swapper/119:28:121
51699964,0cyclictest15512-21kworker/0:223:59:480
35160,0ktimersoftd/30-21swapper/322:53:233
339960,0migration/3943-21sh21:38:363
339960,0migration/324293-21munin-node00:04:403
339960,0migration/323905-21sh22:47:173
339960,0migration/323684-21sh21:31:103
339960,0migration/320458-21sh00:59:213
339960,0migration/320458-21sh00:59:213
29815060,0irq/29-eth0-tx-0-21swapper/222:04:452
29805060,0irq/28-eth0-rx-27498-21perl23:09:393
29805060,0irq/28-eth0-rx-0-21swapper/322:38:163
29805060,0irq/28-eth0-rx-0-21swapper/300:30:403
27160,0ktimersoftd/20-21swapper/223:58:112
19160,0ktimersoftd/10-21swapper/123:58:111
149960,0migration/019361-21sh22:04:570
149960,0migration/010061-21sh23:15:570
51719950,0cyclictest0-21swapper/200:16:052
51709954,0cyclictest22247-21awk22:09:391
51699955,0cyclictest0-21swapper/021:37:470
51699955,0cyclictest0-21swapper/000:51:140
51699955,0cyclictest0-21swapper/000:33:340
51699955,0cyclictest0-21swapper/000:10:140
51699950,0cyclictest0-21swapper/022:26:110
51699950,0cyclictest0-21swapper/021:54:580
51699950,0cyclictest0-21swapper/000:49:010
51699950,0cyclictest0-21swapper/000:40:110
51699950,0cyclictest0-21swapper/000:15:260
4150,0ktimersoftd/00-21swapper/021:46:460
339950,0migration/36937-21munin-node20:59:433
339950,0migration/36628-21kthreadcore21:59:443
339950,0migration/35017-21kthreadcore20:34:423
339950,0migration/33817-21kthreadcore22:54:443
339950,0migration/33724-21kthreadcore19:49:423
339950,0migration/330815-21df_abs23:49:373
339950,0migration/329477-21kthreadcore19:44:433
339950,0migration/329076-21kthreadcore20:29:433
339950,0migration/327833-21cpuspeed_turbos00:44:393
339950,0migration/326082-21taskset23:08:223
339950,0migration/323172-21kthreadcore23:24:453
339950,0migration/322889-21kthreadcore19:39:443
339950,0migration/322582-21fschecks_time23:44:373
339950,0migration/320196-21munin-node21:49:413
339950,0migration/319355-21kthreadcore00:19:433
339950,0migration/317105-21fschecks_count20:44:393
339950,0migration/315351-21latency21:24:453
339950,0migration/314725-21cpuspeed_turbos22:24:393
339950,0migration/311451-21pmu-power19:29:453
339950,0migration/31080-21sh00:09:413
329950,0watchdog/38829-21cut23:34:443
329950,0watchdog/37604-21tr00:49:443
329950,0watchdog/35260-21chrt20:56:043
329950,0watchdog/34125-21cat21:19:443
329950,0watchdog/318703-21cat23:59:443
329950,0watchdog/317486-21grep19:59:433
329950,0watchdog/312293-21tune2fs23:19:403
329950,0watchdog/30-21swapper/322:29:443
29815050,0irq/29-eth0-tx-7778-21munin-node22:39:442
29815050,0irq/29-eth0-tx-627-21swap23:09:502
29815050,0irq/29-eth0-tx-5619-21kthreadcore00:49:442
29815050,0irq/29-eth0-tx-4034-21munin-node21:59:472
29815050,0irq/29-eth0-tx-27411-21sendmail_mailqu22:09:452
29815050,0irq/29-eth0-tx-22149-21ssh00:00:352
29815050,0irq/29-eth0-tx-19111-21tail23:04:402
29815050,0irq/29-eth0-tx-18988-21munin-node00:39:392
29815050,0irq/29-eth0-tx-15260-21perl22:24:402
29815050,0irq/29-eth0-tx-1385-21rt-features00:44:482
29815050,0irq/29-eth0-tx-13346-21munin-node23:39:392
29815050,0irq/29-eth0-tx-11471-21unixbench_singl23:34:522
29815050,0irq/29-eth0-tx-0-21swapper/223:53:102
29815050,0irq/29-eth0-tx-0-21swapper/221:49:122
29815050,0irq/29-eth0-tx-0-21swapper/221:38:242
29815050,0irq/29-eth0-tx-0-21swapper/200:24:452
29815050,0irq/29-eth0-tx-0-21swapper/200:14:002
29815050,0irq/29-eth0-tx-0-21swapper/200:05:172
29815050,0irq/29-eth0-tx-0-21swapper/021:31:090
29815050,0irq/29-eth0-tx-0-21swapper/020:09:420
29805050,0irq/28-eth0-rx-9763-21cut20:14:433
29805050,0irq/28-eth0-rx-9588-21tr20:39:353
29805050,0irq/28-eth0-rx-8619-21ssh21:40:313
29805050,0irq/28-eth0-rx-5139-21grep23:14:443
29805050,0irq/28-eth0-rx-3544-21chrt23:31:403
29805050,0irq/28-eth0-rx-26886-21ssh00:24:453
29805050,0irq/28-eth0-rx-21939-21fschecks_time22:09:373
29805050,0irq/28-eth0-rx-13555-21kthreadcore22:39:473
29805050,0irq/28-eth0-rx-11588-21kthreadcore00:14:433
29805050,0irq/28-eth0-rx-0-21swapper/323:54:553
29805050,0irq/28-eth0-rx-0-21swapper/322:59:433
29805050,0irq/28-eth0-rx-0-21swapper/322:19:443
29805050,0irq/28-eth0-rx-0-21swapper/322:14:433
29805050,0irq/28-eth0-rx-0-21swapper/322:06:223
29805050,0irq/28-eth0-rx-0-21swapper/321:54:453
29805050,0irq/28-eth0-rx-0-21swapper/320:05:013
29805050,0irq/28-eth0-rx-0-21swapper/300:39:443
29805050,0irq/28-eth0-rx-0-21swapper/300:36:063
259950,0migration/28329-21kthreadcore19:29:422
259950,0migration/25663-21latency_hist22:19:252
259950,0migration/231112-21kthreadcore21:14:462
259950,0migration/230215-21kthreadcore21:54:442
259950,0migration/227524-21kthreadcore22:29:442
259950,0migration/225521-21kthreadcore20:04:432
259950,0migration/219378-21kthreadcore19:59:452
259950,0migration/215022-21kthreadcore00:54:472
259950,0migration/215022-21kthreadcore00:54:472
259950,0migration/213233-21cpuspeed_turbos21:04:352
259950,0migration/212425-21kthreadcore22:59:432
259950,0migration/211427-21idleruntime00:34:412
179950,0migration/16442-21munin-node19:29:401
179950,0migration/13021-21fschecks_time21:19:401
179950,0migration/119236-21cpu21:49:371
179950,0migration/116734-21sh21:44:451
179950,0migration/111690-21kthreadcore22:19:451
169950,0watchdog/12959-21kthreadcore22:14:441
169950,0watchdog/10-21swapper/100:29:441
149950,0migration/07830-21kthreadcore22:19:440
149950,0migration/06736-21munin-node23:54:400
149950,0migration/0594-21kthreadcore21:14:460
149950,0migration/05497-21sendmail_mailtr22:34:460
149950,0migration/05298-21taskset20:56:340
149950,0migration/028141-21rt-features23:44:450
149950,0migration/027080-21aten_r1power_po19:44:370
149950,0migration/026793-21kthreadcore20:49:430
149950,0migration/025855-21kthreadcore00:04:440
149950,0migration/025433-21taskset23:06:280
149950,0migration/025386-21kthreadcore22:29:430
149950,0migration/025186-21kthreadcore20:24:430
149950,0migration/024262-21fschecks_time20:04:390
149950,0migration/022350-21kthreadcore21:09:460
149950,0migration/021111-21sh22:09:270
149950,0migration/02048-21idleruntime22:54:410
149950,0migration/017257-21taskset23:02:320
149950,0migration/015987-21kthreadcore19:34:430
149950,0migration/015507-21kthreadcore00:54:470
149950,0migration/015507-21kthreadcore00:54:470
149950,0migration/012178-21taskset23:36:470
149950,0migration/011616-21munin-node20:14:450
149950,0migration/010645-21kthreadcore20:59:460
8305040,0irq/26-0000:00:0-21swapper/200:29:262
51719943,0cyclictest3571-21lldpd20:59:412
51719943,0cyclictest3524-21snmpd20:40:322
51719943,0cyclictest3524-21snmpd20:24:472
51719943,0cyclictest31761-21awk20:09:412
51719943,0cyclictest20834-21awk19:39:422
51719943,0cyclictest10266-21awk19:54:412
51709943,0cyclictest3571-21lldpd23:11:431
51709943,0cyclictest3571-21lldpd22:28:421
51709943,0cyclictest3571-21lldpd21:01:111
51709943,0cyclictest3571-21lldpd20:42:101
51709943,0cyclictest3571-21lldpd19:55:101
51709943,0cyclictest3571-21lldpd00:54:431
51709943,0cyclictest3571-21lldpd00:54:431
51709943,0cyclictest3571-21lldpd00:42:131
51709943,0cyclictest3571-21lldpd00:26:431
51709943,0cyclictest28567-21awk21:14:441
51709943,0cyclictest24089-21awk22:29:411
51699944,0cyclictest0-21swapper/020:29:500
51699943,0cyclictest3571-21lldpd22:52:130
51699943,0cyclictest3571-21lldpd19:40:100
51699943,0cyclictest3571-21lldpd00:36:130
51699943,0cyclictest3524-21snmpd00:27:340
51699943,0cyclictest2882-21awk19:49:400
51699943,0cyclictest27806-21awk23:09:410
51699943,0cyclictest20140-21awk21:49:400
51699943,0cyclictest17490-21awk22:44:420
339940,0migration/321461-21irqrtprio20:24:423
339940,0migration/317850-21sh21:46:513
329940,0watchdog/316484-21kthreadcore20:19:433
329940,0watchdog/30-21swapper/320:49:443
329940,0watchdog/30-21swapper/320:09:433
329940,0watchdog/30-21swapper/319:34:433
29815040,0irq/29-eth0-tx-8494-21ssh21:40:082
29815040,0irq/29-eth0-tx-0-21swapper/223:25:172
29815040,0irq/29-eth0-tx-0-21swapper/223:14:272
29815040,0irq/29-eth0-tx-0-21swapper/222:54:382
29815040,0irq/29-eth0-tx-0-21swapper/222:49:372
29815040,0irq/29-eth0-tx-0-21swapper/222:44:372
29815040,0irq/29-eth0-tx-0-21swapper/222:34:372
29815040,0irq/29-eth0-tx-0-21swapper/222:19:272
29815040,0irq/29-eth0-tx-0-21swapper/221:31:462
29815040,0irq/29-eth0-tx-0-21swapper/200:20:092
29815040,0irq/29-eth0-tx-0-21swapper/021:19:430
29815040,0irq/29-eth0-tx-0-21swapper/020:44:460
29815040,0irq/29-eth0-tx-0-21swapper/019:59:400
29815040,0irq/29-eth0-tx-0-21swapper/019:29:400
29805040,0irq/28-eth0-rx-0-21swapper/323:39:303
259940,0migration/26120-21fschecks_count20:14:382
259940,0migration/232393-21kthreadcore23:29:442
259940,0migration/230922-21aten_r1power_cu20:54:362
259940,0migration/222690-21fschecks_time23:44:372
259940,0migration/216725-21cpuspeed_turbos20:44:382
249940,0watchdog/230926-21kthreadcore19:44:432
249940,0watchdog/228098-21cut20:49:442
249940,0watchdog/225844-21ssh21:49:562
249940,0watchdog/213245-21fschecks_time19:34:392
249940,0watchdog/212294-21grep23:19:402
249940,0watchdog/20-21swapper/219:49:432
179940,0migration/15857-21kthreadcore20:34:431
179940,0migration/132030-21irqcore20:09:421
179940,0migration/131778-21kthreadcore23:29:441
179940,0migration/130319-21taskset20:50:231
179940,0migration/125452-21fschecks_count22:49:381
179940,0migration/121791-21latency_hist23:44:251
179940,0migration/120866-21kthreadcore23:04:441
179940,0migration/120206-21kthreadcore00:19:431
179940,0migration/118894-21timerandwakeup19:34:511
179940,0migration/11698-21runrttasks20:33:511
179940,0migration/115728-21kthreadcore23:19:451
179940,0migration/114804-21kthreadcore22:04:411
179940,0migration/113628-21cpuspeed_turbos23:39:381
179940,0migration/111484-21runrttasks22:01:591
179940,0migration/110276-21kthreadcore00:14:431
169940,0watchdog/17672-21latency19:49:431
169940,0watchdog/16587-21ssh22:36:521
169940,0watchdog/131722-21ls21:34:521
169940,0watchdog/112202-21ssh23:36:521
169940,0watchdog/10-21swapper/123:51:561
169940,0watchdog/10-21swapper/123:24:401
169940,0watchdog/10-21swapper/122:44:441
169940,0watchdog/10-21swapper/121:54:441
169940,0watchdog/10-21swapper/121:29:441
169940,0watchdog/10-21swapper/120:44:441
169940,0watchdog/10-21swapper/120:04:431
169940,0watchdog/10-21swapper/100:34:441
149940,0migration/08235-21unixbench-2d21:39:520
149940,0migration/05211-21kthreadcore20:34:430
149940,0migration/031299-21kthreadcore22:14:430
149940,0migration/030450-21kthreadcore23:29:430
149940,0migration/024512-21sh00:21:580
149940,0migration/01804-21kthreadcore23:49:420
149940,0migration/015837-21kthreadcore20:19:430
149940,0migration/014862-21kthreadcore21:04:400
51719932,0cyclictest3524-21snmpd20:29:472
51719932,0cyclictest13872-21awk20:19:412
51719930,0cyclictest21153-21hddtemp_smartct21:09:422
51709932,0cyclictest905-21awk00:09:401
51709932,0cyclictest7976-21sensors21:39:481
51709932,0cyclictest6586-21awk20:14:401
51709932,0cyclictest4803-21awk00:49:411
51709932,0cyclictest4024-21awk23:14:421
51709932,0cyclictest3571-21lldpd00:44:431
51709932,0cyclictest20960-21awk19:39:431
51709932,0cyclictest20080-21basename20:24:371
51709932,0cyclictest13309-21cut20:19:391
51709932,0cyclictest10711-21awk21:24:431
51699933,0cyclictest20753-21kworker/0:221:24:260
51699933,0cyclictest20753-21kworker/0:220:39:440
51699933,0cyclictest15512-21kworker/0:223:39:340
51699933,0cyclictest15512-21kworker/0:223:24:400
51699933,0cyclictest11368-21kworker/0:121:59:300
51699930,0cyclictest9509-21diskstats19:54:380
51699930,0cyclictest12300-21perl23:19:400
51699930,0cyclictest11748-21cut22:39:460
329930,0watchdog/30-21swapper/321:14:483
329930,0watchdog/30-21swapper/321:04:283
329930,0watchdog/30-21swapper/319:54:433
29805030,0irq/28-eth0-rx-0-21swapper/321:09:493
259930,0migration/216102-21runrttasks21:24:562
249930,0watchdog/20-21swapper/221:19:442
249930,0watchdog/20-21swapper/220:34:402
169930,0watchdog/15036-21tr22:54:441
169930,0watchdog/10-21swapper/123:59:441
169930,0watchdog/10-21swapper/123:02:441
169930,0watchdog/10-21swapper/122:42:161
169930,0watchdog/10-21swapper/121:10:081
169930,0watchdog/10-21swapper/120:56:041
169930,0watchdog/10-21swapper/119:44:391
169930,0watchdog/10-21swapper/100:04:441
169920,0watchdog/10-21swapper/121:04:281
169920,0watchdog/10-21swapper/119:59:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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