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2026-06-18 - 15:26
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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 Thu Jun 18, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3110023727,0sleep30-21swapper/307:25:133
3104123627,0sleep20-21swapper/207:24:362
3102923228,0sleep00-21swapper/007:24:260
3095923221,0sleep10-21swapper/107:23:391
8305060,0irq/26-0000:00:6077-21crond07:30:313
8305060,0irq/26-0000:00:13277-21munin-run07:35:313
4160,0ktimersoftd/00-21swapper/012:21:290
339960,0migration/39247-21sh11:33:493
339960,0migration/37316-21sh11:14:493
339960,0migration/330534-21sh11:08:423
339960,0migration/330263-21munin-node10:50:473
339960,0migration/316070-21kthreadcore09:05:483
329960,0watchdog/330386-21ssh12:22:083
311979960,0cyclictest0-21swapper/212:34:042
311969960,0cyclictest22096-21ssh11:04:101
29815060,0irq/29-eth0-tx-6528-21munin-node08:15:560
29805060,0irq/28-eth0-rx-13076-21fschecks_time11:55:463
29805060,0irq/28-eth0-rx-11725-21iostat09:25:483
29805060,0irq/28-eth0-rx-10812-21grep10:55:513
19160,0ktimersoftd/10-21swapper/112:21:291
149960,0migration/011303-21sh10:39:380
339950,0migration/39410-21kthreadcore12:10:493
339950,0migration/38864-21hwlatdetect11:15:473
339950,0migration/35129-21kthreadcore12:45:493
339950,0migration/3489-21irqcore08:10:493
339950,0migration/331094-21kthreadcore07:45:493
339950,0migration/329751-21sh09:53:023
339950,0migration/328994-21fschecks_time08:30:453
339950,0migration/32852-21aten_r1power_po07:50:443
339950,0migration/328248-21latency_hist09:15:323
339950,0migration/328147-21kthreadcore08:05:503
339950,0migration/327472-21fschecks_count10:30:453
339950,0migration/326617-21sh10:45:513
339950,0migration/321473-21fschecks_count08:25:453
339950,0migration/321369-21ksmtuned11:02:113
339950,0migration/315489-21kthreadcore07:35:483
339950,0migration/311406-21munin-node12:50:473
329950,0watchdog/36442-21ssh12:26:323
329950,0watchdog/330608-21kthreadcore09:15:473
329950,0watchdog/317199-21entropy12:35:443
329950,0watchdog/316309-21cut10:40:513
329950,0watchdog/315281-21cut07:55:513
329950,0watchdog/30-21swapper/311:42:123
311979955,0cyclictest0-21swapper/211:39:312
311979955,0cyclictest0-21swapper/210:59:102
311979955,0cyclictest0-21swapper/209:37:482
311979950,0cyclictest0-21swapper/212:12:092
311979950,0cyclictest0-21swapper/212:03:202
311979950,0cyclictest0-21swapper/211:46:182
311979950,0cyclictest0-21swapper/211:31:002
311969955,0cyclictest0-21swapper/112:04:421
311969955,0cyclictest0-21swapper/110:53:261
311969955,0cyclictest0-21swapper/109:47:041
311969955,0cyclictest0-21swapper/107:40:561
311969950,0cyclictest0-21swapper/112:15:161
311969950,0cyclictest0-21swapper/110:50:081
311969950,0cyclictest0-21swapper/110:37:401
311969950,0cyclictest0-21swapper/110:28:321
29815050,0irq/29-eth0-tx-27606-21ssh09:35:182
29815050,0irq/29-eth0-tx-2736-21munin-node07:50:540
29815050,0irq/29-eth0-tx-16004-21munin-node10:05:452
29815050,0irq/29-eth0-tx-0-21swapper/009:26:490
29815050,0irq/29-eth0-tx-0-21swapper/008:40:430
29805050,0irq/28-eth0-rx-743-21kthreadcore09:55:493
29805050,0irq/28-eth0-rx-25985-21grep12:40:463
29805050,0irq/28-eth0-rx-2449-21kthreadcore10:15:503
29805050,0irq/28-eth0-rx-22156-21ssh12:18:073
29805050,0irq/28-eth0-rx-20719-21kthreadcore08:00:493
29805050,0irq/28-eth0-rx-11224-21kthreadcore10:20:493
29805050,0irq/28-eth0-rx-11168-21ssh11:52:563
29805050,0irq/28-eth0-rx-0-21swapper/312:32:493
29805050,0irq/28-eth0-rx-0-21swapper/312:06:113
29805050,0irq/28-eth0-rx-0-21swapper/312:00:573
29805050,0irq/28-eth0-rx-0-21swapper/311:45:453
29805050,0irq/28-eth0-rx-0-21swapper/311:25:503
29805050,0irq/28-eth0-rx-0-21swapper/311:21:133
29805050,0irq/28-eth0-rx-0-21swapper/310:35:493
29805050,0irq/28-eth0-rx-0-21swapper/310:10:513
29805050,0irq/28-eth0-rx-0-21swapper/310:05:463
29805050,0irq/28-eth0-rx-0-21swapper/309:31:503
27150,0ktimersoftd/20-21swapper/211:21:332
259950,0migration/221588-21run-parts12:16:322
19150,0ktimersoftd/10-21swapper/108:05:131
179950,0migration/17370-21switchtime10:15:571
179950,0migration/14174-21irqcore07:50:491
179950,0migration/13510-21latency_hist11:50:331
179950,0migration/12424-21idleruntime11:30:461
179950,0migration/118503-21idleruntime08:45:451
179950,0migration/11504-21latency09:35:511
179950,0migration/114447-21kthreadcore10:40:511
169950,0watchdog/113124-21cut12:50:481
149950,0migration/09452-21kthreadcore10:55:500
149950,0migration/07495-21taskset11:15:200
149950,0migration/05635-21sh09:56:360
149950,0migration/032237-21kthreadcore12:05:520
149950,0migration/03092-21kthreadcore08:55:490
149950,0migration/029495-21unixbench_singl11:05:580
149950,0migration/025982-21kernelversion08:05:500
149950,0migration/021773-21kthreadcore10:25:490
149950,0migration/021606-21kthreadcore08:00:490
149950,0migration/020107-21sh11:58:500
149950,0migration/014708-21fschecks_count11:00:460
149950,0migration/014074-21fschecks_count07:35:440
149950,0migration/012518-21sh09:44:090
149950,0migration/011961-21kthreadcore11:15:500
149950,0migration/01056-21kthreadcore09:35:510
339940,0migration/318267-21sh10:25:383
339940,0migration/311390-21kthreadcore09:00:493
339940,0migration/310932-21fschecks_time08:40:453
329940,0watchdog/324611-21kthreadcore07:40:513
329940,0watchdog/30-21swapper/310:01:553
329940,0watchdog/30-21swapper/309:40:473
329940,0watchdog/30-21swapper/308:15:513
311979944,0cyclictest0-21swapper/211:55:452
311979943,0cyclictest7648-21awk08:15:462
311979943,0cyclictest4851-21awk11:50:492
311979943,0cyclictest3571-21lldpd12:51:452
311979943,0cyclictest3571-21lldpd09:24:132
311979943,0cyclictest3571-21lldpd09:17:432
311979943,0cyclictest3571-21lldpd09:05:432
311979943,0cyclictest3571-21lldpd09:01:132
311979943,0cyclictest3571-21lldpd08:54:422
311979943,0cyclictest3571-21lldpd08:46:122
311979943,0cyclictest3571-21lldpd08:42:422
311979943,0cyclictest3571-21lldpd08:33:122
311979943,0cyclictest3571-21lldpd08:06:412
311979943,0cyclictest3571-21lldpd07:55:112
311979943,0cyclictest3571-21lldpd07:43:412
311979943,0cyclictest3524-21snmpd08:59:502
311979943,0cyclictest3524-21snmpd08:35:502
311979943,0cyclictest3250-21irqbalance10:35:392
311979943,0cyclictest3250-21irqbalance09:55:392
311979943,0cyclictest28136-21sadc09:15:322
311979943,0cyclictest2677-21awk12:45:482
311979943,0cyclictest14793-21awk08:20:472
311969944,0cyclictest0-21swapper/109:10:581
311969944,0cyclictest0-21swapper/108:20:501
311969943,0cyclictest7398-21awk07:30:471
311969943,0cyclictest4835-21awk11:50:491
311969943,0cyclictest3571-21lldpd10:55:441
311969943,0cyclictest3571-21lldpd09:56:141
311969943,0cyclictest3524-21snmpd07:25:501
311969943,0cyclictest19973-21awk11:40:481
311969943,0cyclictest17908-21awk12:35:461
311969943,0cyclictest14539-21awk07:35:461
311959944,0cyclictest467-21kworker/0:010:50:440
311959944,0cyclictest23184-21kworker/0:207:45:490
311959943,0cyclictest3524-21snmpd08:37:500
311959943,0cyclictest3250-21irqbalance11:20:390
311959943,0cyclictest3250-21irqbalance07:26:080
311959943,0cyclictest2753-21sadc08:35:320
311959943,0cyclictest27165-21sadc11:45:330
311959943,0cyclictest25792-21awk08:50:460
311959943,0cyclictest20189-21awk09:30:470
311959943,0cyclictest10826-21awk10:20:480
311959943,0cyclictest10263-21sadc09:25:320
29815040,0irq/29-eth0-tx-6525-21ssh11:12:422
29815040,0irq/29-eth0-tx-643-21kthreadcore10:50:502
29815040,0irq/29-eth0-tx-30294-21cut10:30:492
29815040,0irq/29-eth0-tx-25310-21perl10:10:462
29815040,0irq/29-eth0-tx-10265-21diskmemload11:40:532
29815040,0irq/29-eth0-tx-0-21swapper/212:40:452
29815040,0irq/29-eth0-tx-0-21swapper/212:26:102
29815040,0irq/29-eth0-tx-0-21swapper/212:20:582
29815040,0irq/29-eth0-tx-0-21swapper/211:25:452
29815040,0irq/29-eth0-tx-0-21swapper/211:15:402
29815040,0irq/29-eth0-tx-0-21swapper/210:48:312
29815040,0irq/29-eth0-tx-0-21swapper/210:25:352
29815040,0irq/29-eth0-tx-0-21swapper/210:00:472
29815040,0irq/29-eth0-tx-0-21swapper/209:50:472
29815040,0irq/29-eth0-tx-0-21swapper/209:45:502
29815040,0irq/29-eth0-tx-0-21swapper/009:15:510
29815040,0irq/29-eth0-tx-0-21swapper/008:10:470
29815040,0irq/29-eth0-tx-0-21swapper/007:55:450
29805040,0irq/28-eth0-rx-13303-21sh09:45:393
29805040,0irq/28-eth0-rx-0-21swapper/311:36:353
29805040,0irq/28-eth0-rx-0-21swapper/309:35:473
29805040,0irq/28-eth0-rx-0-21swapper/308:35:493
259940,0migration/27892-21kthreadcore09:40:492
259940,0migration/24500-21kthreadcore07:25:482
259940,0migration/218059-21fschecks_time08:00:452
259940,0migration/216858-21munin-node09:25:562
259940,0migration/214190-21sshd11:00:432
249940,0watchdog/29640-21aten_r1power_cu10:20:432
249940,0watchdog/24027-21unixbench_multi12:06:002
249940,0watchdog/232651-21idleruntime08:10:472
249940,0watchdog/228802-21grep11:05:512
249940,0watchdog/221058-21aten2.4-expect08:25:432
249940,0watchdog/217197-21sh12:35:442
249940,0watchdog/216310-21kthreadcore10:40:512
249940,0watchdog/20-21swapper/210:15:432
179940,0migration/18427-21kthreadcore09:40:491
179940,0migration/13822-21fschecks_count09:20:451
179940,0migration/131634-21kthreadcore09:15:471
179940,0migration/127663-21kthreadcore11:25:501
179940,0migration/127379-21df_abs10:30:441
179940,0migration/127332-21kthreadcore08:50:481
179940,0migration/124487-21kthreadcore08:25:501
179940,0migration/119359-21cpuspeed_turbos09:30:441
179940,0migration/117548-21kthreadcore09:05:481
179940,0migration/117097-21latency_hist08:00:311
179940,0migration/116304-21latency_hist11:20:331
179940,0migration/115212-21kthreadcore08:40:501
179940,0migration/113827-21irqrtprio11:55:491
179940,0migration/113524-21kthreadcore12:30:521
179940,0migration/113361-21runrttasks09:01:161
179940,0migration/110875-21df_abs09:25:441
169940,0watchdog/132494-21grep12:05:521
169940,0watchdog/13062-21kthreadcore12:25:521
169940,0watchdog/128171-21kthreadcore10:10:511
169940,0watchdog/119597-21cut12:15:521
169940,0watchdog/114400-21sh10:01:551
169940,0watchdog/10-21swapper/111:10:351
169940,0watchdog/10-21swapper/110:20:431
169940,0watchdog/10-21swapper/108:30:471
169940,0watchdog/10-21swapper/108:15:511
149940,0migration/08193-21unixbench_multi12:45:580
149940,0migration/08173-21kthreadcore07:30:490
149940,0migration/07609-21irqstats12:10:480
149940,0migration/04911-21kthreadcore11:30:490
149940,0migration/030204-21kthreadcore12:40:520
149940,0migration/027827-21taskset08:29:280
149940,0migration/027370-21df_abs10:30:440
149940,0migration/026236-21kthreadcore10:10:500
149940,0migration/024567-21kthreadcore12:00:490
149940,0migration/023648-21kthreadcore09:10:490
149940,0migration/023347-21kthreadcore07:40:500
149940,0migration/021184-21fschecks_count10:45:450
149940,0migration/02007-21runrttasks11:46:450
149940,0migration/018536-21kthreadcore12:35:480
149940,0migration/016902-21users12:50:560
149940,0migration/016638-21kthreadcore09:45:490
149940,0migration/013042-21kthreadcore12:30:520
149940,0migration/012982-21taskset09:00:540
329930,0watchdog/30-21swapper/309:20:433
329930,0watchdog/30-21swapper/308:45:433
329930,0watchdog/30-21swapper/308:20:433
311979932,0cyclictest3571-21lldpd07:30:402
311979932,0cyclictest3524-21snmpd07:45:352
311979932,0cyclictest11065-21awk07:55:472
311969932,0cyclictest6019-21grep12:45:501
311969932,0cyclictest26530-21awk12:40:491
311969932,0cyclictest24088-21awk11:05:491
311969932,0cyclictest22415-21expr10:05:581
311969932,0cyclictest17713-21awk11:20:481
311969930,0cyclictest30655-21python08:05:561
311959933,0cyclictest8342-21kworker/0:110:05:490
311959933,0cyclictest467-21kworker/0:011:25:500
311959932,0cyclictest8599-21irqcore10:00:470
311959932,0cyclictest3524-21snmpd08:45:430
311959932,0cyclictest32008-21basename12:25:450
311959932,0cyclictest23456-21awk09:50:480
311959932,0cyclictest14969-21cut12:15:440
311959932,0cyclictest1356-21expr10:15:450
311959932,0cyclictest12202-21grep10:40:460
311959932,0cyclictest11234-21awk11:35:460
311959932,0cyclictest10077-21sensors11:50:550
311959930,0cyclictest14640-21tune2fs09:05:440
29815030,0irq/29-eth0-tx-0-21swapper/008:20:440
29805030,0irq/28-eth0-rx-0-21swapper/308:55:533
29805030,0irq/28-eth0-rx-0-21swapper/308:50:423
249930,0watchdog/20-21swapper/207:35:432
179930,0migration/117364-21sh11:37:171
169930,0watchdog/10-21swapper/109:50:431
169930,0watchdog/10-21swapper/108:35:511
169930,0watchdog/10-21swapper/108:10:471
169930,0watchdog/10-21swapper/107:45:511
311969920,0cyclictest0-21swapper/108:55:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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