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2026-07-11 - 23:25
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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 Sat Jul 11, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
430925040,0sleep30-21swapper/307:27:153
401824746,0sleep10-21swapper/107:23:491
427824635,0sleep00-21swapper/007:26:520
409323627,0sleep20-21swapper/207:24:422
43989988,0cyclictest3524-21snmpd12:11:001
43989960,0cyclictest0-21swapper/110:37:351
339960,0migration/328995-21kthreadcore11:42:433
339960,0migration/325841-21sh10:46:333
339960,0migration/325380-21sh11:58:423
339960,0migration/323697-21sh10:27:143
339960,0migration/311822-21sh11:12:583
339960,0migration/310797-21munin-node09:42:393
329960,0watchdog/327308-21ssh09:51:393
29815060,0irq/29-eth0-tx-8370-21munin-node07:52:400
29815060,0irq/29-eth0-tx-25894-21if_eth111:42:412
29815060,0irq/29-eth0-tx-19477-21munin-node09:07:490
29805060,0irq/28-eth0-rx-8796-21kthreadcore12:27:443
29805060,0irq/28-eth0-rx-27676-21iostat_ios10:47:423
149960,0migration/025748-21kthreadcore08:47:420
149960,0migration/01418-21latency09:52:440
149960,0migration/013662-21sh10:18:300
8305050,0irq/26-0000:00:5072-21python11:27:502
8305050,0irq/26-0000:00:23799-21perf10:27:252
8305050,0irq/26-0000:00:0-21swapper/307:47:243
43999955,0cyclictest0-21swapper/211:34:512
43999955,0cyclictest0-21swapper/211:24:072
43999955,0cyclictest0-21swapper/209:02:422
43999950,0cyclictest0-21swapper/211:03:562
43999950,0cyclictest0-21swapper/210:38:152
43999950,0cyclictest0-21swapper/209:47:382
43989955,0cyclictest28468-21ssh12:20:421
43989955,0cyclictest0-21swapper/112:47:581
43989955,0cyclictest0-21swapper/111:49:571
43989955,0cyclictest0-21swapper/110:52:241
43989955,0cyclictest0-21swapper/110:45:091
43989950,0cyclictest0-21swapper/112:34:251
43989950,0cyclictest0-21swapper/111:42:321
43989950,0cyclictest0-21swapper/111:20:191
43989950,0cyclictest0-21swapper/111:13:511
43989950,0cyclictest0-21swapper/108:12:231
43989950,0cyclictest0-21swapper/107:32:491
43979950,0cyclictest0-21swapper/012:52:250
339950,0migration/39323-21kthreadcore08:12:433
339950,0migration/38182-21munin-node12:47:383
339950,0migration/37422-21taskset11:47:493
339950,0migration/37307-21munin-node09:37:443
339950,0migration/34833-21kthreadcore10:52:433
339950,0migration/34389-21idleruntime12:07:403
339950,0migration/3423-21kthreadcore10:12:433
339950,0migration/330929-21latency_hist11:27:253
339950,0migration/325854-21taskset07:40:453
339950,0migration/324584-21irqrtprio12:37:423
339950,0migration/324126-21irqcore08:02:443
339950,0migration/322219-21taskset09:27:463
339950,0migration/321254-21kthreadcore08:42:423
339950,0migration/317053-21sh11:37:393
339950,0migration/316935-21munin-node07:57:413
339950,0migration/313175-21kthreadcore09:22:433
339950,0migration/313160-21kthreadcore10:37:423
339950,0migration/312288-21aten_r1power_cu09:02:373
339950,0migration/312068-21kthreadcore10:17:433
339950,0migration/310387-21kthreadcore08:57:423
329950,0watchdog/3391-21ps09:12:473
329950,0watchdog/323346-21tr11:22:403
329950,0watchdog/30-21swapper/312:17:443
329950,0watchdog/30-21swapper/312:12:403
329950,0watchdog/30-21swapper/310:57:483
329950,0watchdog/30-21swapper/309:57:393
329950,0watchdog/30-21swapper/307:32:393
29815050,0irq/29-eth0-tx-30377-21sendmail_mailqu10:27:482
29815050,0irq/29-eth0-tx-27429-21ssh12:17:542
29815050,0irq/29-eth0-tx-19903-21ssh10:03:222
29815050,0irq/29-eth0-tx-19017-21munin-node07:37:470
29815050,0irq/29-eth0-tx-0-21swapper/211:54:522
29815050,0irq/29-eth0-tx-0-21swapper/210:09:192
29815050,0irq/29-eth0-tx-0-21swapper/209:52:462
29815050,0irq/29-eth0-tx-0-21swapper/009:27:390
29815050,0irq/29-eth0-tx-0-21swapper/008:15:130
29815050,0irq/29-eth0-tx-0-21swapper/007:50:010
29815050,0irq/29-eth0-tx-0-21swapper/007:35:020
29805050,0irq/28-eth0-rx-6785-21ssh12:44:443
29805050,0irq/28-eth0-rx-4313-21awk12:24:223
29805050,0irq/28-eth0-rx-28017-21python10:07:473
29805050,0irq/28-eth0-rx-25809-21munin-node08:22:513
29805050,0irq/28-eth0-rx-23479-21ssh12:53:013
29805050,0irq/28-eth0-rx-0-21swapper/312:03:463
29805050,0irq/28-eth0-rx-0-21swapper/311:32:503
29805050,0irq/28-eth0-rx-0-21swapper/311:17:333
29805050,0irq/28-eth0-rx-0-21swapper/311:04:203
29805050,0irq/28-eth0-rx-0-21swapper/309:53:573
29805050,0irq/28-eth0-rx-0-21swapper/309:32:393
27150,0ktimersoftd/20-21swapper/209:39:072
259950,0migration/28233-21kthreadcore12:07:432
259950,0migration/27098-21df_abs10:17:372
259950,0migration/222620-21timerwakeupswit11:37:502
259950,0migration/220143-21kthreadcore12:52:422
259950,0migration/219822-21latency_hist11:02:252
259950,0migration/214347-21latency_hist12:32:242
259950,0migration/213574-21latency_hist11:17:252
259950,0migration/21319-21munin-node11:47:392
249950,0watchdog/228119-21kthreadcore09:32:432
249950,0watchdog/21894-21cut08:07:432
249950,0watchdog/216007-21tr12:12:442
19150,0ktimersoftd/10-21swapper/110:34:261
179950,0migration/19869-21munin-node11:52:371
179950,0migration/17329-21kthreadcore10:52:431
179950,0migration/1606-21sh09:37:111
179950,0migration/14352-21kthreadcore08:32:421
179950,0migration/127590-21taskset11:04:591
179950,0migration/125098-21munin-node11:57:551
179950,0migration/124725-21kthreadcore12:37:431
179950,0migration/12434-21kthreadcore11:27:431
179950,0migration/120154-21kthreadcore12:52:431
179950,0migration/113805-21switchtime11:32:511
179950,0migration/113710-21fschecks_time10:02:401
179950,0migration/110178-21kthreadcore08:57:421
169950,0watchdog/130074-21grep12:22:401
169950,0watchdog/121616-21chrt10:22:471
169950,0watchdog/116005-21ssh12:12:441
149950,0migration/08927-21sh11:51:010
149950,0migration/06952-21kthreadcore09:57:430
149950,0migration/05591-21munin-node12:42:470
149950,0migration/04441-21timerandwakeup10:12:500
149950,0migration/04081-21fschecks_time12:07:380
149950,0migration/031007-21kthreadcore11:07:430
149950,0migration/031007-21kthreadcore11:07:430
149950,0migration/02917-21kthreadcore08:07:430
149950,0migration/027594-21taskset09:52:210
149950,0migration/027396-21kthreadcore08:02:450
149950,0migration/026444-21kthreadcore12:37:430
149950,0migration/026442-21sh10:47:360
149950,0migration/023045-21kthreadcore12:17:430
149950,0migration/022116-21turbostat11:22:250
149950,0migration/019996-21kthreadcore08:42:420
149950,0migration/019701-21fschecks_count08:22:370
149950,0migration/018483-21kthreadcore07:57:420
149950,0migration/016115-21switchtime11:52:500
149950,0migration/014377-21munin-node12:47:490
149950,0migration/013336-21irqcore12:12:420
149950,0migration/013288-21latency11:32:450
149950,0migration/012373-21kthreadcore10:37:410
43999943,0cyclictest9860-21awk09:22:402
43999943,0cyclictest9584-21awk08:37:392
43999943,0cyclictest3524-21snmpd12:28:442
43999943,0cyclictest3524-21snmpd08:57:402
43999943,0cyclictest27366-21awk07:42:392
43999943,0cyclictest0-21swapper/208:42:422
43989943,0cyclictest3571-21lldpd11:39:471
43989943,0cyclictest3571-21lldpd08:43:441
43989943,0cyclictest3524-21snmpd12:28:141
43989943,0cyclictest22784-21awk10:07:411
43989943,0cyclictest2189-21awk07:47:421
43989943,0cyclictest20322-21awk08:22:401
43989943,0cyclictest12607-21awk10:57:411
43979943,0cyclictest3571-21lldpd09:36:150
43979943,0cyclictest3524-21snmpd11:37:580
43979943,0cyclictest3524-21snmpd11:25:580
43979943,0cyclictest3524-21snmpd09:39:410
43979943,0cyclictest3524-21snmpd07:31:380
43979943,0cyclictest27832-21awk09:12:420
43979943,0cyclictest25966-21awk11:42:410
43979943,0cyclictest2319-21awk08:32:400
43979943,0cyclictest15817-21sadc09:27:240
43979943,0cyclictest13314-21awk09:02:410
43979943,0cyclictest12491-21awk10:57:400
339940,0migration/33423-21kthreadcore09:17:423
339940,0migration/318142-21kthreadcore12:32:433
339940,0migration/312083-21aten_r1power_en08:17:343
329940,0watchdog/329514-21yum08:47:513
329940,0watchdog/32215-21chrt08:32:393
329940,0watchdog/30-21swapper/310:32:433
329940,0watchdog/30-21swapper/307:52:433
329940,0watchdog/30-21swapper/307:27:433
29815040,0irq/29-eth0-tx-689-21irqcore12:42:422
29815040,0irq/29-eth0-tx-4641-21kthreadcore10:52:432
29815040,0irq/29-eth0-tx-24605-21ssh10:43:092
29815040,0irq/29-eth0-tx-0-21swapper/212:37:422
29815040,0irq/29-eth0-tx-0-21swapper/212:22:342
29815040,0irq/29-eth0-tx-0-21swapper/212:02:342
29815040,0irq/29-eth0-tx-0-21swapper/211:57:292
29815040,0irq/29-eth0-tx-0-21swapper/209:57:312
29815040,0irq/29-eth0-tx-0-21swapper/209:42:572
29815040,0irq/29-eth0-tx-0-21swapper/008:57:350
29805040,0irq/28-eth0-rx-12875-21latency_hist10:02:253
29805040,0irq/28-eth0-rx-0-21swapper/311:52:453
29805040,0irq/28-eth0-rx-0-21swapper/311:07:373
29805040,0irq/28-eth0-rx-0-21swapper/311:07:373
29805040,0irq/28-eth0-rx-0-21swapper/310:27:273
29805040,0irq/28-eth0-rx-0-21swapper/308:52:413
29805040,0irq/28-eth0-rx-0-21swapper/308:07:373
259940,0migration/25701-21taskset07:27:402
259940,0migration/25461-21kthreadcore10:32:442
259940,0migration/24030-21munin-node08:52:472
259940,0migration/231122-21kthreadcore08:27:432
259940,0migration/222299-21kthreadcore09:07:422
259940,0migration/22093-21kthreadcore10:12:432
259940,0migration/220432-21munin-node08:22:402
259940,0migration/217958-21kthreadcore09:27:432
259940,0migration/216705-21kthreadcore08:17:412
259940,0migration/216047-21kthreadcore11:17:432
259940,0migration/214640-21timerandwakeup07:52:502
249940,0watchdog/22802-21kthreadcore07:47:432
249940,0watchdog/224839-21latency07:37:432
249940,0watchdog/212379-21tune2fs07:32:392
249940,0watchdog/20-21swapper/212:47:442
249940,0watchdog/20-21swapper/211:07:442
249940,0watchdog/20-21swapper/211:07:442
249940,0watchdog/20-21swapper/210:47:432
249940,0watchdog/20-21swapper/209:12:432
249940,0watchdog/20-21swapper/208:12:432
179940,0migration/19215-21fschecks_time08:37:381
179940,0migration/130105-21latency_hist08:52:241
179940,0migration/127376-21fschecks_time09:12:391
179940,0migration/12574-21kthreadcore12:42:431
179940,0migration/125173-21kthreadcore08:02:441
179940,0migration/125098-21idleruntime10:27:411
179940,0migration/124976-21latency09:47:441
179940,0migration/12136-21fschecks_time09:17:381
179940,0migration/121164-21kthreadcore07:57:421
179940,0migration/118672-21taskset08:18:381
179940,0migration/112029-21kthreadcore09:42:431
179940,0migration/110997-21kthreadcore10:17:431
169940,0watchdog/15149-21perl09:57:391
169940,0watchdog/129709-21kthreadcore12:02:441
169940,0watchdog/128921-21ssh09:52:391
169940,0watchdog/124837-21cat07:37:431
169940,0watchdog/123345-21grep11:22:401
169940,0watchdog/112698-21df_inode09:02:391
169940,0watchdog/111852-21kthreadcore07:52:431
169940,0watchdog/11160-21aten_r1power_po09:37:351
169940,0watchdog/10-21swapper/110:12:431
169940,0watchdog/10-21swapper/108:12:431
169940,0watchdog/10-21swapper/107:27:431
149940,0migration/08983-21proc_pri10:52:470
149940,0migration/024649-21runrttasks10:43:160
149940,0migration/021918-21runrttasks12:35:000
149940,0migration/018781-21kthreadcore10:02:450
149940,0migration/015229-21kthreadcore08:17:410
149940,0migration/013412-21runrttasks12:30:280
149940,0migration/010380-21kthreadcore11:12:440
8305030,0irq/26-0000:00:0-21swapper/307:42:423
43999932,0cyclictest5766-21kthreadcore09:17:422
43999932,0cyclictest2417-21awk08:32:402
43999932,0cyclictest24077-21awk08:47:402
43999930,0cyclictest28766-21ntp_states08:02:472
43989932,0cyclictest3524-21snmpd09:23:561
43989932,0cyclictest32515-21pmu-power08:27:461
43989932,0cyclictest29258-21cut07:42:411
43989932,0cyclictest20679-21irqcore09:07:401
43989931,0cyclictest23326-21df_abs08:47:361
43989930,0cyclictest16076-21munin-node09:27:391
43979933,0cyclictest0-21swapper/007:42:370
43979932,0cyclictest6686-21ssh11:31:150
43979932,0cyclictest3571-21lldpd10:33:150
43979932,0cyclictest3571-21lldpd10:22:450
43979932,0cyclictest3524-21snmpd09:20:260
43979932,0cyclictest30581-21awk12:22:420
43979932,0cyclictest28223-21awk12:02:420
43979932,0cyclictest21553-21cut11:02:420
43979932,0cyclictest14744-21sensors08:37:460
43979930,0cyclictest30149-21munin-node08:52:410
43979930,0cyclictest27800-21ntp_states10:07:450
43979930,0cyclictest20140-21grep11:57:450
43979930,0cyclictest10863-21perl09:42:390
43979930,0cyclictest0-21swapper/010:27:390
29815030,0irq/29-eth0-tx-0-21swapper/008:27:360
29805030,0irq/28-eth0-rx-0-21swapper/309:09:333
29805030,0irq/28-eth0-rx-0-21swapper/308:37:353
29805030,0irq/28-eth0-rx-0-21swapper/308:31:573
249930,0watchdog/20-21swapper/207:57:352
169930,0watchdog/10-21swapper/111:07:441
169930,0watchdog/10-21swapper/111:07:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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