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2026-06-18 - 02:20
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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 Jun 18, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1342024736,0sleep30-21swapper/319:20:323
2024124334,0sleep20-21swapper/219:24:152
2027123228,0sleep10-21swapper/119:24:381
1997222925,0sleep00-21swapper/019:21:050
339970,0migration/38453-21sh22:43:173
35160,0ktimersoftd/31218-21ssh00:10:523
339960,0migration/37126-21sh00:53:063
339960,0migration/330885-21sh23:35:003
339960,0migration/329207-21sh00:29:583
339960,0migration/32838-21pmu-power23:15:503
339960,0migration/324179-21sh23:49:053
339960,0migration/322962-21sh00:45:143
339960,0migration/319438-21sh00:22:033
339960,0migration/311490-21kthreadcore21:30:483
339960,0migration/310894-21sh00:17:163
329960,0watchdog/314394-21munin-node23:40:573
29815060,0irq/29-eth0-tx-6571-21munin-node20:45:480
29815060,0irq/29-eth0-tx-20964-21munin-node20:55:460
29805060,0irq/28-eth0-rx-26188-21iostat_ios23:50:463
29805060,0irq/28-eth0-rx-11299-21python22:05:503
204189965,0cyclictest17893-21grep21:35:422
204189960,0cyclictest0-21swapper/220:40:482
204169966,0cyclictest0-21swapper/022:40:410
149960,0migration/03231-21sh00:15:200
149960,0migration/013592-21aten2.4-expect20:05:410
4150,0ktimersoftd/00-21swapper/023:31:080
339950,0migration/39491-21taskset22:45:313
339950,0migration/38729-21kthreadcore21:05:493
339950,0migration/37088-21munin-node00:35:453
339950,0migration/36165-21sh22:23:233
339950,0migration/34377-21kthreadcore20:40:483
339950,0migration/33810-21munin-node19:35:473
339950,0migration/322002-21munin-node23:10:463
339950,0migration/320453-21kthreadcore20:30:453
339950,0migration/315440-21kthreadcore20:50:473
329950,0watchdog/37112-21fschecks_count20:45:403
329950,0watchdog/3502-21if_eth021:25:453
329950,0watchdog/324561-21iostat00:45:453
329950,0watchdog/311176-21interrupts00:00:453
329950,0watchdog/310344-21aten_r1power_po21:10:413
329950,0watchdog/30-21swapper/320:25:403
29815050,0irq/29-eth0-tx-9547-21munin-node22:45:402
29815050,0irq/29-eth0-tx-6412-21tr00:15:492
29815050,0irq/29-eth0-tx-4328-21kthreadcore22:40:472
29815050,0irq/29-eth0-tx-2942-21munin-node21:05:490
29815050,0irq/29-eth0-tx-24702-21cat23:30:462
29815050,0irq/29-eth0-tx-21973-21ssh00:25:442
29815050,0irq/29-eth0-tx-20960-21ssh22:12:442
29815050,0irq/29-eth0-tx-16326-21munin-node23:45:402
29815050,0irq/29-eth0-tx-0-21swapper/223:30:032
29815050,0irq/29-eth0-tx-0-21swapper/223:03:382
29815050,0irq/29-eth0-tx-0-21swapper/221:54:142
29815050,0irq/29-eth0-tx-0-21swapper/200:53:302
29815050,0irq/29-eth0-tx-0-21swapper/021:15:480
29815050,0irq/29-eth0-tx-0-21swapper/021:13:460
29815050,0irq/29-eth0-tx-0-21swapper/020:20:480
29805050,0irq/28-eth0-rx-7522-21grep21:45:483
29805050,0irq/28-eth0-rx-6191-21kthreadcore23:00:473
29805050,0irq/28-eth0-rx-29407-21kthreadcore21:40:483
29805050,0irq/28-eth0-rx-28950-21grep21:20:473
29805050,0irq/28-eth0-rx-23471-21irqcore22:15:453
29805050,0irq/28-eth0-rx-16770-21tr21:50:473
29805050,0irq/28-eth0-rx-15128-21if_err_eth123:25:453
29805050,0irq/28-eth0-rx-13522-40yum-updatesd-he23:24:483
29805050,0irq/28-eth0-rx-12794-21sh23:05:443
29805050,0irq/28-eth0-rx-0-21swapper/323:37:373
29805050,0irq/28-eth0-rx-0-21swapper/322:55:503
29805050,0irq/28-eth0-rx-0-21swapper/322:37:293
29805050,0irq/28-eth0-rx-0-21swapper/322:25:483
29805050,0irq/28-eth0-rx-0-21swapper/321:55:473
29805050,0irq/28-eth0-rx-0-21swapper/319:50:473
29805050,0irq/28-eth0-rx-0-21swapper/300:06:143
27150,0ktimersoftd/20-21swapper/223:56:082
259950,0migration/28229-21sh23:20:482
259950,0migration/232663-21kthreadcore00:30:482
259950,0migration/229450-21munin-node00:45:502
259950,0migration/22910-21processes23:15:502
259950,0migration/220993-21idleruntime21:55:442
259950,0migration/212419-21switchtime00:35:552
259950,0migration/21225-21munin-node00:10:532
259950,0migration/210132-21sh21:48:262
249950,0watchdog/226116-21if_eth1.223:50:452
204189955,0cyclictest31609-21diskmemload00:07:572
204189955,0cyclictest0-21swapper/222:01:592
204189954,0cyclictest0-21swapper/221:30:562
204189950,0cyclictest0-21swapper/222:35:252
204189950,0cyclictest0-21swapper/222:06:342
204179955,0cyclictest31609-21diskmemload22:51:181
204179955,0cyclictest0-21swapper/122:34:551
204179950,0cyclictest0-21swapper/123:07:231
204179950,0cyclictest0-21swapper/122:18:591
204179950,0cyclictest0-21swapper/121:43:591
204179950,0cyclictest0-21swapper/121:28:421
204179950,0cyclictest0-21swapper/100:11:241
204169955,0cyclictest0-21swapper/021:36:220
204169953,0cyclictest17934-21kworker/0:122:25:590
204169953,0cyclictest17934-21kworker/0:121:56:290
204169950,0cyclictest0-21swapper/023:26:240
204169950,0cyclictest0-21swapper/022:09:380
169950,0watchdog/17114-21fschecks_count20:45:401
149950,0migration/06020-21taskset20:41:560
149950,0migration/04814-21kthreadcore19:35:490
149950,0migration/04321-21kthreadcore23:55:460
149950,0migration/032195-21cpuspeed_turbos21:25:410
149950,0migration/029685-21taskset22:17:530
149950,0migration/029406-21kthreadcore21:40:470
149950,0migration/027968-21kthreadcore22:35:470
149950,0migration/027933-21kthreadcore20:35:480
149950,0migration/027122-21kthreadcore19:50:470
149950,0migration/027118-21munin-node00:25:500
149950,0migration/026817-21ksmtuned00:10:010
149950,0migration/025833-21fschecks_time23:50:430
149950,0migration/024812-21kthreadcore23:10:470
149950,0migration/023152-21needreboot20:30:470
149950,0migration/022706-21kthreadcore19:45:460
149950,0migration/017949-21kthreadcore23:45:460
149950,0migration/01759-21kthreadcore22:00:470
149950,0migration/017510-21kthreadcore22:10:470
149950,0migration/016964-21kthreadcore23:05:480
149950,0migration/016414-21timerandwakeup20:25:540
149950,0migration/015834-21kthreadcore20:50:470
149950,0migration/015778-21kthreadcore21:50:470
149950,0migration/013679-21missed_timers23:40:490
149950,0migration/012757-21kthreadcore00:00:470
149950,0migration/010819-21taskset21:50:010
149950,0migration/010588-21kthreadcore21:30:480
8305040,0irq/26-0000:00:0-21swapper/221:20:302
339940,0migration/34022-21runrttasks20:20:443
339940,0migration/330450-21kthreadcore19:30:463
339940,0migration/322763-21kthreadcore20:55:473
339940,0migration/31751-21pmu-power21:00:493
339940,0migration/31751-21pmu-power21:00:493
339940,0migration/317407-21latency_hist21:15:303
339940,0migration/312827-21kthreadcore19:40:463
329940,0watchdog/33281-21kthreadcore19:55:483
329940,0watchdog/30-21swapper/323:55:413
329940,0watchdog/30-21swapper/322:30:413
329940,0watchdog/30-21swapper/320:05:483
329940,0watchdog/30-21swapper/319:45:443
329940,0watchdog/30-21swapper/300:32:173
29815040,0irq/29-eth0-tx-30357-21ssh22:19:462
29815040,0irq/29-eth0-tx-14613-21ssh00:40:342
29815040,0irq/29-eth0-tx-0-21swapper/223:40:332
29815040,0irq/29-eth0-tx-0-21swapper/223:10:342
29815040,0irq/29-eth0-tx-0-21swapper/222:51:122
29815040,0irq/29-eth0-tx-0-21swapper/222:20:462
29815040,0irq/29-eth0-tx-0-21swapper/221:40:292
29815040,0irq/29-eth0-tx-0-21swapper/200:20:442
29815040,0irq/29-eth0-tx-0-21swapper/200:02:222
29815040,0irq/29-eth0-tx-0-21swapper/019:30:480
29815040,0irq/29-eth0-tx-0-21swapper/019:25:480
29805040,0irq/28-eth0-rx-26824-21kthreadcore20:35:473
29805040,0irq/28-eth0-rx-0-21swapper/322:50:433
29805040,0irq/28-eth0-rx-0-21swapper/322:11:273
29805040,0irq/28-eth0-rx-0-21swapper/322:01:373
29805040,0irq/28-eth0-rx-0-21swapper/321:35:353
259940,0migration/27856-21kthreadcore19:35:492
259940,0migration/2438-21irqrtprio23:35:472
259940,0migration/232200-21df21:25:422
259940,0migration/230224-21needreboot19:50:492
259940,0migration/229622-21kthreadcore19:30:462
259940,0migration/224829-21cpuspeed_turbos22:35:422
259940,0migration/222309-21kthreadcore19:25:462
259940,0migration/219327-21kthreadcore20:50:482
259940,0migration/21633-21kthreadcore19:55:482
259940,0migration/212306-21fschecks_count23:05:432
249940,0watchdog/28234-21grep21:05:492
249940,0watchdog/27113-21fschecks_count20:45:402
249940,0watchdog/225424-21hwlatdetect20:35:442
249940,0watchdog/210101-21tail20:25:402
249940,0watchdog/20-21swapper/221:10:412
204189944,0cyclictest0-21swapper/222:55:352
204189943,0cyclictest9249-21kthreadcore22:25:482
204189943,0cyclictest3524-21snmpd20:20:592
204189943,0cyclictest3524-21snmpd20:04:442
204189943,0cyclictest3524-21snmpd19:41:442
204189943,0cyclictest29270-21awk21:00:442
204189943,0cyclictest29270-21awk21:00:442
204189943,0cyclictest29005-21awk20:15:442
204189943,0cyclictest21795-21awk20:10:452
204189943,0cyclictest18540-21awk21:15:452
204179944,0cyclictest0-21swapper/122:02:171
204179944,0cyclictest0-21swapper/100:31:441
204179943,0cyclictest6339-21sadc20:45:301
204179943,0cyclictest3571-21lldpd20:56:251
204179943,0cyclictest3545-21awk21:45:451
204179943,0cyclictest3524-21snmpd23:42:161
204179943,0cyclictest3524-21snmpd22:55:451
204179943,0cyclictest3524-21snmpd22:14:451
204179943,0cyclictest3524-21snmpd21:59:001
204179943,0cyclictest3524-21snmpd21:23:451
204179943,0cyclictest3524-21snmpd00:53:161
204179943,0cyclictest3524-21snmpd00:36:311
204179943,0cyclictest3524-21snmpd00:27:011
204179943,0cyclictest29079-21awk20:15:451
204179943,0cyclictest25651-21awk22:35:451
204179943,0cyclictest23804-21awk23:30:451
204179943,0cyclictest18484-21awk21:15:441
204179943,0cyclictest18321-21awk20:30:431
204179943,0cyclictest18004-21awk21:35:441
204179943,0cyclictest11542-21sadc23:05:301
204179943,0cyclictest10965-21awk19:40:441
204169943,0cyclictest7119-21kworker/0:119:40:480
204169943,0cyclictest3524-21snmpd23:15:460
204169943,0cyclictest32645-21awk19:55:460
204169943,0cyclictest13495-21awk00:20:480
204169942,0cyclictest5356-21kworker/0:200:45:460
204169942,0cyclictest5356-21kworker/0:200:35:450
204169942,0cyclictest17934-21kworker/0:123:24:290
204169942,0cyclictest17934-21kworker/0:123:02:290
204169942,0cyclictest17934-21kworker/0:122:52:290
204169942,0cyclictest17934-21kworker/0:122:46:590
204169942,0cyclictest17934-21kworker/0:122:30:450
204169942,0cyclictest17934-21kworker/0:122:20:590
179940,0migration/17873-21munin-node23:55:541
179940,0migration/132065-21sh22:20:451
179940,0migration/127091-21kthreadcore23:50:471
179940,0migration/123531-21kthreadcore23:10:471
179940,0migration/123349-21kthreadcore00:05:491
179940,0migration/115422-21kthreadcore00:20:501
179940,0migration/113205-21taskset20:04:061
169940,0watchdog/18027-21aten_r1power_en21:30:411
169940,0watchdog/13806-21ssh23:16:531
169940,0watchdog/13552-21lldpd20:37:241
169940,0watchdog/123577-21cpuspeed_turbos00:45:411
169940,0watchdog/119363-21kthreadcore20:50:481
169940,0watchdog/118214-21tr20:05:481
169940,0watchdog/114545-21ssh22:27:331
169940,0watchdog/110343-21aten_r1power_po21:10:411
169940,0watchdog/110099-21aten2.4-expect20:25:401
169940,0watchdog/10-21swapper/123:39:171
149940,0migration/09007-21kthreadcore20:00:460
149940,0migration/031299-21ksmtuned21:21:590
149940,0migration/029880-21kthreadcore21:00:460
149940,0migration/029880-21kthreadcore21:00:460
149940,0migration/027971-21aten_r1power_en20:15:400
149940,0migration/022200-21sh00:43:080
149940,0migration/01142-21kthreadcore00:30:480
149940,0migration/01140-21sh22:55:580
329930,0watchdog/30-21swapper/320:15:563
329930,0watchdog/30-21swapper/320:00:563
29805030,0irq/28-eth0-rx-0-21swapper/320:10:423
29805030,0irq/28-eth0-rx-0-21swapper/319:25:413
249930,0watchdog/20-21swapper/219:45:442
204189932,0cyclictest23440-21sensors20:30:492
204189932,0cyclictest14697-21awk20:05:462
204189930,0cyclictest0-21swapper/220:57:022
204179932,0cyclictest4170-21awk21:05:461
204179932,0cyclictest3524-21snmpd21:01:451
204179932,0cyclictest3524-21snmpd21:01:451
204179932,0cyclictest31606-21cut19:30:461
204179932,0cyclictest2475-21kthreadcore19:55:481
204179932,0cyclictest21922-21awk20:10:461
204179932,0cyclictest1826-21if_err_eth022:40:441
204179930,0cyclictest6176-21tune2fs23:20:441
204179930,0cyclictest3209-21diskstats20:20:411
204179930,0cyclictest29883-21cut19:50:481
204179930,0cyclictest15538-21perl00:40:431
204179930,0cyclictest12176-21perl21:50:431
204169933,0cyclictest7119-21kworker/0:120:10:390
204169933,0cyclictest5356-21kworker/0:200:50:420
204169933,0cyclictest17934-21kworker/0:123:35:370
204169932,0cyclictest4549-21grep00:15:440
179930,0migration/13422-21taskset19:35:441
179930,0migration/119625-21kthreadcore23:45:471
169930,0watchdog/118332-21sed19:45:441
169930,0watchdog/10-21swapper/123:25:451
169930,0watchdog/10-21swapper/122:45:411
169930,0watchdog/10-21swapper/122:05:331
169930,0watchdog/10-21swapper/119:25:441
169930,0watchdog/10-21swapper/100:16:091
169930,0watchdog/10-21swapper/100:00:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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