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2026-04-30 - 16:06
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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 Thu Apr 30, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271790,0ktimersoftd/220319-21perf07:21:202
2087123829,0sleep30-21swapper/307:20:323
2092423724,0sleep00-21swapper/007:21:090
2072623725,0sleep10-21swapper/107:18:501
210269999,0cyclictest13969-21sensors10:06:540
210279976,0cyclictest0-21swapper/112:01:511
339960,0migration/36767-21sh10:04:553
339960,0migration/34368-21sh09:44:513
339960,0migration/320960-21aten_r1power_vo10:51:423
339960,0migration/320653-21kthreadcore12:41:483
339960,0migration/313792-21sh11:05:223
339960,0migration/310925-21latency_hist09:31:303
29805060,0irq/28-eth0-rx-31948-21ps07:26:473
29805060,0irq/28-eth0-rx-18967-21sh11:46:413
29805060,0irq/28-eth0-rx-0-21swapper/310:37:393
149960,0migration/032043-21cpuspeed_turbos11:16:430
149960,0migration/021928-21sh12:22:510
149960,0migration/011571-21sh10:45:310
8305050,0irq/26-0000:00:17692-21sed07:41:312
4150,0ktimersoftd/00-21swapper/012:43:560
4150,0ktimersoftd/00-21swapper/012:39:520
339950,0migration/39182-21munin-node07:31:483
339950,0migration/38316-21munin-node10:06:453
339950,0migration/36862-21taskset08:41:233
339950,0migration/35706-21latency12:31:483
339950,0migration/35325-21kthreadcore10:21:503
339950,0migration/34240-21fschecks_time10:41:443
339950,0migration/330904-21kthreadcore08:11:483
339950,0migration/330904-21kthreadcore08:11:483
339950,0migration/327488-21kthreadcore10:17:033
339950,0migration/324003-21fschecks_count12:26:433
339950,0migration/322802-21timerwakeupswit10:11:573
339950,0migration/321447-21kthreadcore07:41:483
339950,0migration/318883-21munin-node09:16:433
339950,0migration/316395-21kthreadcore08:21:473
339950,0migration/314177-21munin-node09:51:433
339950,0migration/312451-21idleruntime09:11:463
339950,0migration/312100-21latency_hist10:46:313
339950,0migration/311763-21irqrtprio11:41:473
339950,0migration/311445-21kthreadcore12:16:493
339950,0migration/311011-21taskset11:57:403
329950,0watchdog/327917-21kthreadcore11:31:463
329950,0watchdog/326694-21sh09:37:063
329950,0watchdog/315707-21ssh12:38:223
329950,0watchdog/31396-21grep08:56:503
329950,0watchdog/30-21swapper/309:49:343
29815050,0irq/29-eth0-tx-7427-21kthreadcore09:26:482
29815050,0irq/29-eth0-tx-503-21ssh09:23:192
29815050,0irq/29-eth0-tx-30261-21ssh09:59:302
29815050,0irq/29-eth0-tx-0-21swapper/211:08:512
29815050,0irq/29-eth0-tx-0-21swapper/209:43:042
29815050,0irq/29-eth0-tx-0-21swapper/008:49:340
29815050,0irq/29-eth0-tx-0-21swapper/008:11:520
29815050,0irq/29-eth0-tx-0-21swapper/008:11:520
29805050,0irq/28-eth0-rx-9129-21kthreadcore09:06:463
29805050,0irq/28-eth0-rx-8827-21kthreadcore08:41:473
29805050,0irq/28-eth0-rx-3454-21smartctl10:56:553
29805050,0irq/28-eth0-rx-32519-21users09:21:553
29805050,0irq/28-eth0-rx-3205-21kernelversion11:36:483
29805050,0irq/28-eth0-rx-29340-21pmu-power11:11:533
29805050,0irq/28-eth0-rx-13819-21grep07:36:483
29805050,0irq/28-eth0-rx-0-21swapper/312:11:453
29805050,0irq/28-eth0-rx-0-21swapper/311:29:053
29805050,0irq/28-eth0-rx-0-21swapper/310:31:463
29805050,0irq/28-eth0-rx-0-21swapper/310:29:043
29805050,0irq/28-eth0-rx-0-21swapper/309:56:483
29805050,0irq/28-eth0-rx-0-21swapper/309:35:153
29805050,0irq/28-eth0-rx-0-21swapper/308:51:433
27150,0ktimersoftd/20-21swapper/212:43:562
27150,0ktimersoftd/20-21swapper/212:02:422
259950,0migration/230895-21kthreadcore11:31:472
259950,0migration/214496-21sh09:51:452
259950,0migration/213117-21gltestperf10:46:432
259950,0migration/211452-21sh11:58:522
259950,0migration/210407-21kthreadcore11:01:482
249950,0watchdog/227244-21kthreadcore11:11:502
249950,0watchdog/225431-21cut09:36:502
210289955,0cyclictest0-21swapper/212:46:412
210289955,0cyclictest0-21swapper/211:45:122
210289955,0cyclictest0-21swapper/209:46:392
210289950,0cyclictest0-21swapper/212:16:162
210289950,0cyclictest0-21swapper/211:51:112
210289950,0cyclictest0-21swapper/210:34:532
210279955,0cyclictest25656-21diskmemload10:03:551
210279955,0cyclictest0-21swapper/112:13:501
210279955,0cyclictest0-21swapper/111:35:591
210279955,0cyclictest0-21swapper/111:03:591
210279955,0cyclictest0-21swapper/109:57:561
210279955,0cyclictest0-21swapper/109:29:421
210279950,0cyclictest0-21swapper/110:47:261
210269955,0cyclictest0-21swapper/009:48:050
210269950,0cyclictest0-21swapper/011:53:350
210269950,0cyclictest0-21swapper/010:00:230
19150,0ktimersoftd/10-21swapper/112:43:561
19150,0ktimersoftd/10-21swapper/112:39:521
19150,0ktimersoftd/10-21swapper/112:27:141
19150,0ktimersoftd/10-21swapper/111:38:401
19150,0ktimersoftd/10-21swapper/110:40:201
179950,0migration/15917-21munin-node12:31:501
179950,0migration/13546-21aten_r1power_po08:16:421
179950,0migration/127361-21kthreadcore10:17:031
179950,0migration/114640-21latency_hist12:21:321
169950,0watchdog/112268-21if_eth1.209:31:501
149950,0migration/07122-21aten_r1power_po07:56:410
149950,0migration/06950-21fschecks_time12:16:440
149950,0migration/05952-21pmu-power08:36:510
149950,0migration/04886-21sh09:46:080
149950,0migration/04773-21kthreadcore12:31:480
149950,0migration/04131-21aten_r1power_po11:56:430
149950,0migration/03934-21kthreadcore11:36:480
149950,0migration/032120-21munin-node09:21:510
149950,0migration/032109-21fschecks_time10:01:440
149950,0migration/031483-21kthreadcore10:56:480
149950,0migration/030649-21kthreadcore08:56:490
149950,0migration/029493-21sensors_fan11:11:540
149950,0migration/027568-21kthreadcore10:17:030
149950,0migration/027248-21timerandwakeup10:51:550
149950,0migration/025836-21fschecks_time07:46:430
149950,0migration/025012-21kthreadcore12:06:490
149950,0migration/024181-21kthreadcore08:51:470
149950,0migration/023271-21kthreadcore10:31:470
149950,0migration/023010-21kthreadcore09:16:490
149950,0migration/022878-21kthreadcore07:21:430
149950,0migration/022793-21irqrtprio08:06:460
149950,0migration/021630-21kthreadcore07:41:480
149950,0migration/019535-21fschecks_count11:46:460
149950,0migration/017334-21kthreadcore09:51:490
149950,0migration/014596-21aten_r1power_fr11:06:430
149950,0migration/014456-21kthreadcore07:36:480
149950,0migration/011594-21aten_r1power_vo09:11:430
149950,0migration/011039-21if_eth010:26:460
8305040,0irq/26-0000:00:27342chrt08:11:582
8305040,0irq/26-0000:00:27342chrt08:11:582
8305040,0irq/26-0000:00:0-21swapper/208:01:312
339940,0migration/321793-21runrttasks08:06:423
339940,0migration/316526-21kthreadcore08:46:483
339940,0migration/316420-21kthreadcore12:01:493
339940,0migration/315306-21df_abs12:21:453
339940,0migration/314224-21sh08:01:413
329940,0watchdog/30-21swapper/312:46:423
329940,0watchdog/30-21swapper/312:06:423
329940,0watchdog/30-21swapper/307:56:453
29815040,0irq/29-eth0-tx-8555-21aten_r1power_fr12:36:432
29815040,0irq/29-eth0-tx-0-21swapper/212:21:372
29815040,0irq/29-eth0-tx-0-21swapper/212:16:472
29815040,0irq/29-eth0-tx-0-21swapper/212:06:372
29815040,0irq/29-eth0-tx-0-21swapper/211:16:332
29815040,0irq/29-eth0-tx-0-21swapper/210:56:512
29815040,0irq/29-eth0-tx-0-21swapper/210:41:322
29815040,0irq/29-eth0-tx-0-21swapper/210:36:412
29815040,0irq/29-eth0-tx-0-21swapper/210:16:422
29815040,0irq/29-eth0-tx-0-21swapper/210:11:452
29815040,0irq/29-eth0-tx-0-21swapper/210:01:462
29815040,0irq/29-eth0-tx-0-21swapper/209:31:352
29815040,0irq/29-eth0-tx-0-21swapper/008:16:410
29805040,0irq/28-eth0-rx-0-21swapper/311:52:203
29805040,0irq/28-eth0-rx-0-21swapper/311:21:373
29805040,0irq/28-eth0-rx-0-21swapper/311:19:313
29805040,0irq/28-eth0-rx-0-21swapper/311:07:463
29805040,0irq/28-eth0-rx-0-21swapper/308:16:453
29805040,0irq/28-eth0-rx-0-21swapper/307:46:413
259940,0migration/28900-21sh11:38:202
259940,0migration/23560-21kthreadcore10:21:492
259940,0migration/232240-21aten_r1power_po12:31:412
259940,0migration/230775-21kthreadcore08:31:492
259940,0migration/229093-21df_abs08:56:442
259940,0migration/223224-21kthreadcore08:06:462
259940,0migration/219019-21kthreadcore08:46:492
259940,0migration/210499-21latency_hist07:36:302
249940,0watchdog/29557-21python07:31:532
249940,0watchdog/29021-21kthreadcore09:06:462
249940,0watchdog/20-21swapper/207:56:452
210289943,0cyclictest9204-21awk11:21:462
210289943,0cyclictest8766-21awk10:06:472
210289943,0cyclictest4519-21awk08:16:462
210289943,0cyclictest3571-21lldpd09:11:342
210289943,0cyclictest3571-21lldpd07:55:332
210289943,0cyclictest3571-21lldpd07:51:042
210289943,0cyclictest3250-21irqbalance11:53:082
210289943,0cyclictest3250-21irqbalance09:16:372
210289943,0cyclictest3250-21irqbalance09:04:372
210289943,0cyclictest29640-21awk07:26:452
210289943,0cyclictest22639-21awk08:51:452
210289943,0cyclictest22025-21awk10:51:472
210289943,0cyclictest17784-21awk11:26:452
210289943,0cyclictest15991-21ntp_offset10:26:502
210289940,0cyclictest23517-21munin-node12:26:422
210279944,0cyclictest0-21swapper/110:06:551
210279943,0cyclictest8067-21awk07:56:451
210279943,0cyclictest3524-21snmpd11:51:341
210279943,0cyclictest3524-21snmpd11:16:491
210279943,0cyclictest3524-21snmpd09:36:331
210279943,0cyclictest3524-21snmpd09:16:321
210279943,0cyclictest3524-21snmpd09:05:321
210279943,0cyclictest3524-21snmpd08:59:321
210279943,0cyclictest3524-21snmpd08:46:471
210279943,0cyclictest3524-21snmpd08:41:321
210279943,0cyclictest3524-21snmpd07:53:311
210279943,0cyclictest3524-21snmpd07:45:311
210279943,0cyclictest3524-21snmpd07:32:161
210279943,0cyclictest26973-21awk12:46:471
210279943,0cyclictest24346-21awk11:11:481
210279943,0cyclictest2216-21awk10:21:471
210279943,0cyclictest16059-21awk12:21:481
210279943,0cyclictest15618-21awk11:06:471
210279943,0cyclictest15097-21awk09:51:471
210269943,0cyclictest730-21awk07:51:460
210269943,0cyclictest3571-21lldpd11:23:360
210269943,0cyclictest3524-21snmpd09:32:180
210269943,0cyclictest24595-21awk12:26:450
210269943,0cyclictest18486-21grep08:26:440
210269943,0cyclictest17479-21awk10:11:480
179940,0migration/1746-21kthreadcore10:56:491
179940,0migration/16915-21irqrtprio09:46:461
179940,0migration/13209-21kthreadcore08:36:481
179940,0migration/130552-21kthreadcore09:41:491
179940,0migration/129260-21latency_hist10:56:311
179940,0migration/128450-21taskset07:26:361
179940,0migration/127879-21timerwakeupswit08:51:551
179940,0migration/123862-21kthreadcore07:21:431
179940,0migration/122424-21kthreadcore11:26:491
179940,0migration/118921-21df_abs10:31:411
179940,0migration/117252-21taskset08:22:281
179940,0migration/116366-21aten2.4-expect10:11:421
179940,0migration/114114-21missed_timers11:21:501
179940,0migration/112241-21fschecks_time09:11:441
179940,0migration/110992-21fschecks_count07:36:441
179940,0migration/110885-21munin-node10:26:441
169940,0watchdog/17737-21kthreadcore09:06:461
169940,0watchdog/14633-21if_eth1.310:41:461
169940,0watchdog/132062-21kthreadcore08:11:491
169940,0watchdog/132062-21kthreadcore08:11:491
169940,0watchdog/127126-21iostat_ios09:21:461
169940,0watchdog/121372-21telnet12:06:421
169940,0watchdog/111048-21ssh11:57:461
169940,0watchdog/110449-21ssh11:41:421
149940,0migration/06846-21kthreadcore07:31:470
149940,0migration/030073-21kthreadcore11:31:470
149940,0migration/021757-21kthreadcore09:36:490
149940,0migration/019004-21kthreadcore11:26:480
149940,0migration/011231-21fschecks_time11:41:440
149940,0migration/011027-21df_abs08:21:420
329930,0watchdog/30-21swapper/308:31:453
29805030,0irq/28-eth0-rx-0-21swapper/308:26:413
29805030,0irq/28-eth0-rx-0-21swapper/307:51:423
29805030,0irq/28-eth0-rx-0-21swapper/307:22:133
249930,0watchdog/210995-21df08:21:412
249930,0watchdog/20-21swapper/208:41:492
210289933,0cyclictest3571-21lldpd08:36:332
210289932,0cyclictest18882-21awk08:26:452
210289930,0cyclictest0-21swapper/207:22:042
210279932,0cyclictest3524-21snmpd11:46:341
210279932,0cyclictest25992-21awk07:46:441
210279932,0cyclictest23335-21cut08:06:461
210279932,0cyclictest18912-21awk08:26:451
210269933,0cyclictest3571-21lldpd12:47:370
210269933,0cyclictest0-21swapper/010:38:320
210269932,0cyclictest5354-21kthreadcore10:21:500
210269932,0cyclictest5314-21awk09:06:430
210269932,0cyclictest26120-21awk08:31:460
210269932,0cyclictest18200-21cut10:46:490
210269932,0cyclictest15228-21awk08:01:450
210269931,0cyclictest2801-21kthreadcore12:11:500
210269930,0cyclictest6075-21sh11:01:420
210269930,0cyclictest0-21swapper/007:26:430
179930,0migration/114331-21aten_r1power_vo08:01:421
169930,0watchdog/10-21swapper/108:31:531
329920,0watchdog/30-21swapper/309:01:383
210269921,0cyclictest126492sleep012:01:360
210269921,0cyclictest0-21swapper/008:41:310
210269920,0cyclictest0-21swapper/009:26:300
210269920,0cyclictest0-21swapper/009:01:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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