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2026-08-07 - 19:12
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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 Fri Aug 07, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1455023727,0sleep20-21swapper/207:24:362
2154823627,0sleep30-21swapper/307:27:503
2156123524,0sleep00-21swapper/007:27:550
2150323424,0sleep10-21swapper/107:27:161
21774991111,0cyclictest3524-21snmpd10:27:410
21774991010,0cyclictest3524-21snmpd08:22:470
8305060,0irq/26-0000:00:29193-21cpu10:04:503
339960,0migration/38646-21sh09:33:173
339960,0migration/37457-21munin-node10:29:513
339960,0migration/33599-21munin-node09:05:023
339960,0migration/331794-21fschecks_count11:59:513
339960,0migration/331723-21sh10:42:553
339960,0migration/331723-21sh10:42:553
339960,0migration/319117-21munin-node10:34:573
329960,0watchdog/36009-21kthreadcore09:49:523
29805060,0irq/28-eth0-rx-12956-21cut11:09:543
217769960,0cyclictest613-21diskmemload10:41:112
217769960,0cyclictest613-21diskmemload10:41:112
217749965,0cyclictest0-21swapper/012:22:580
149960,0migration/014598-21kthreadcore09:54:560
149960,0migration/014455-21sh12:06:290
149960,0migration/01042-21sh11:02:390
4150,0ktimersoftd/00-21swapper/009:34:550
339950,0migration/36603-21gltestperf11:44:523
339950,0migration/35418-21kthreadcore11:04:543
339950,0migration/34309-21kthreadcore10:44:563
339950,0migration/3402-21latency_hist07:59:373
339950,0migration/332675-21latency_hist12:19:373
339950,0migration/331095-21kthreadcore11:39:553
339950,0migration/331093-21kthreadcore07:54:563
339950,0migration/329691-21taskset11:56:033
339950,0migration/327566-21latency_hist12:54:383
339950,0migration/326277-21kthreadcore12:14:573
339950,0migration/325999-21kthreadcore10:19:553
339950,0migration/325500-21taskset09:20:313
339950,0migration/323416-21kthreadcore09:39:553
339950,0migration/323338-21munin-node08:14:543
339950,0migration/323307-21gltestperf08:59:493
339950,0migration/320708-21kthreadcore12:29:543
339950,0migration/32006-21taskset11:20:043
339950,0migration/319146-21munin-node08:34:513
339950,0migration/315803-21munin-node09:34:593
339950,0migration/314898-21kthreadcore08:29:543
339950,0migration/31406-21kthreadcore10:24:563
339950,0migration/313103-21irqrtprio09:14:523
339950,0migration/310853-21kthreadcore12:04:563
329950,0watchdog/35325-21basename08:24:563
329950,0watchdog/332479-21yum08:40:043
329950,0watchdog/32799-21perl12:39:533
329950,0watchdog/30-21swapper/309:55:003
329950,0watchdog/30-21swapper/309:09:483
329950,0watchdog/30-21swapper/307:44:563
29815050,0irq/29-eth0-tx-7922-21ssh12:22:252
29815050,0irq/29-eth0-tx-4481-21munin-node09:09:490
29815050,0irq/29-eth0-tx-25926-21munin-node12:35:012
29815050,0irq/29-eth0-tx-2241-21ssh11:20:442
29815050,0irq/29-eth0-tx-22281-21munin-node10:19:522
29815050,0irq/29-eth0-tx-20932-21munin-node11:35:012
29815050,0irq/29-eth0-tx-20651-21tail09:59:482
29815050,0irq/29-eth0-tx-19312-21tr10:34:572
29815050,0irq/29-eth0-tx-18738-21sensors11:29:592
29815050,0irq/29-eth0-tx-17321-21munin-node10:54:512
29815050,0irq/29-eth0-tx-15792-21munin-node12:09:582
29815050,0irq/29-eth0-tx-11499-21ssh11:27:412
29815050,0irq/29-eth0-tx-0-21swapper/211:14:532
29815050,0irq/29-eth0-tx-0-21swapper/211:12:302
29815050,0irq/29-eth0-tx-0-21swapper/210:54:142
29815050,0irq/29-eth0-tx-0-21swapper/210:09:212
29815050,0irq/29-eth0-tx-0-21swapper/209:54:562
29815050,0irq/29-eth0-tx-0-21swapper/209:49:322
29815050,0irq/29-eth0-tx-0-21swapper/009:04:490
29805050,0irq/28-eth0-rx-9451-21fschecks_time10:49:503
29805050,0irq/28-eth0-rx-20947-21df_inode09:59:493
29805050,0irq/28-eth0-rx-20875-21kthreadcore08:54:573
29805050,0irq/28-eth0-rx-20152-21hddtemp_smartct12:49:523
29805050,0irq/28-eth0-rx-16642-21kthreadcore10:14:553
29805050,0irq/28-eth0-rx-13388-21kthreadcore08:04:543
29805050,0irq/28-eth0-rx-0-21swapper/312:44:563
29805050,0irq/28-eth0-rx-0-21swapper/312:28:353
29805050,0irq/28-eth0-rx-0-21swapper/311:26:313
29805050,0irq/28-eth0-rx-0-21swapper/311:15:033
29805050,0irq/28-eth0-rx-0-21swapper/311:00:033
259950,0migration/28033-21sh10:48:122
259950,0migration/26596-21sh12:03:232
259950,0migration/24651-21kthreadcore12:39:572
259950,0migration/23806-21kthreadcore11:04:542
259950,0migration/222006-21sh10:19:372
259950,0migration/221953-21kthreadcore08:34:562
259950,0migration/217424-21kthreadcore11:49:562
259950,0migration/212556-21kthreadcore10:29:562
249950,0watchdog/228587-21cut10:59:562
249950,0watchdog/212292-21cut09:34:522
217769955,0cyclictest0-21swapper/212:16:342
217769955,0cyclictest0-21swapper/210:13:162
217769950,0cyclictest0-21swapper/209:50:532
217759955,0cyclictest0-21swapper/111:36:071
217759955,0cyclictest0-21swapper/111:30:551
217759955,0cyclictest0-21swapper/108:34:391
217759950,0cyclictest0-21swapper/112:43:191
217759950,0cyclictest0-21swapper/112:03:141
217759950,0cyclictest0-21swapper/110:37:301
217759950,0cyclictest0-21swapper/110:15:241
217759950,0cyclictest0-21swapper/107:40:061
217749950,0cyclictest0-21swapper/010:37:300
217749950,0cyclictest0-21swapper/008:14:490
217749950,0cyclictest0-21swapper/007:34:500
179950,0migration/18886-21gltestperf08:49:521
179950,0migration/17894-21aten_r1power_en08:04:471
179950,0migration/17550-21unixbench-2d09:30:031
179950,0migration/130957-21sh10:40:381
179950,0migration/130957-21sh10:40:381
179950,0migration/126538-21munin-node09:24:481
179950,0migration/123750-21munin-node12:29:591
179950,0migration/123444-21ntp_offset10:54:581
179950,0migration/115908-21kthreadcore11:09:551
179950,0migration/112108-21kthreadcore09:34:521
179950,0migration/110672-21sh11:25:101
169950,0watchdog/113735-21ssh11:49:131
149950,0migration/09706-21fschecks_time10:49:510
149950,0migration/08992-21idleruntime08:49:530
149950,0migration/08590-21timerandwakeup12:40:050
149950,0migration/07397-21kthreadcore09:49:530
149950,0migration/04708-21fschecks_count07:39:500
149950,0migration/032759-21kthreadcore10:04:560
149950,0migration/03218-21kthreadcore11:59:560
149950,0migration/031618-21kthreadcore11:39:550
149950,0migration/02963-21kthreadcore09:29:550
149950,0migration/029131-21irqcore11:19:540
149950,0migration/027982-21munin-node07:29:550
149950,0migration/026883-21kthreadcore12:14:580
149950,0migration/026173-21cpuspeed_turbos08:39:490
149950,0migration/026068-21aten_r1power_vo12:34:490
149950,0migration/026021-21latency_hist09:24:370
149950,0migration/024949-21kthreadcore11:14:560
149950,0migration/023645-21irqcore10:19:540
149950,0migration/02357-21kthreadcore08:44:550
149950,0migration/023006-21kthreadcore09:59:540
149950,0migration/022921-21kthreadcore12:29:550
149950,0migration/022156-21idleruntime-cro08:59:370
149950,0migration/020678-21kthreadcore09:19:540
149950,0migration/020076-21irqcore08:34:550
149950,0migration/017314-21kthreadcore11:49:560
149950,0migration/017255-21latency_hist12:29:370
149950,0migration/012948-21latency10:29:560
149950,0migration/010243-21sh11:09:160
339940,0migration/323135-21kthreadcore10:54:563
339940,0migration/31648-21kthreadcore07:34:553
339940,0migration/315013-21kthreadcore11:29:543
329940,0watchdog/328646-40yum-updatesd-he07:30:563
329940,0watchdog/312215-21kthreadcore08:49:563
329940,0watchdog/30-21swapper/310:09:523
329940,0watchdog/30-21swapper/309:46:003
329940,0watchdog/30-21swapper/308:44:563
329940,0watchdog/30-21swapper/307:49:563
29815040,0irq/29-eth0-tx-7263-21sshd12:04:402
29815040,0irq/29-eth0-tx-5643-21munin-node11:44:512
29815040,0irq/29-eth0-tx-27248-21kthreadcore11:54:562
29815040,0irq/29-eth0-tx-18124-21munin-node09:39:532
29815040,0irq/29-eth0-tx-0-21swapper/212:44:542
29815040,0irq/29-eth0-tx-0-21swapper/212:30:292
29815040,0irq/29-eth0-tx-0-21swapper/212:25:372
29815040,0irq/29-eth0-tx-0-21swapper/211:39:452
29815040,0irq/29-eth0-tx-0-21swapper/210:24:392
29815040,0irq/29-eth0-tx-0-21swapper/007:59:480
29805040,0irq/28-eth0-rx-0-21swapper/312:35:293
29805040,0irq/28-eth0-rx-0-21swapper/312:11:263
29805040,0irq/28-eth0-rx-0-21swapper/311:49:503
29805040,0irq/28-eth0-rx-0-21swapper/311:34:483
259940,0migration/28453-21kthreadcore09:09:552
259940,0migration/23855-21kthreadcore07:59:532
259940,0migration/229544-21kthreadcore08:39:542
259940,0migration/225040-21kthreadcore07:29:542
259940,0migration/221310-21kthreadcore09:19:542
259940,0migration/219665-21kthreadcore08:09:542
259940,0migration/215307-21aten_r1power_vo08:54:502
259940,0migration/214237-21timerwakeupswit08:05:012
249940,0watchdog/25716-21tr08:44:562
249940,0watchdog/226174-21grep08:14:562
249940,0watchdog/224541-21kthreadcore12:49:572
249940,0watchdog/220676-21kthreadcore07:49:562
249940,0watchdog/20-21swapper/209:29:562
249940,0watchdog/20-21swapper/209:04:482
249940,0watchdog/20-21swapper/208:24:562
217769943,0cyclictest9138-21awk08:49:542
217769943,0cyclictest3571-21lldpd07:56:462
217769943,0cyclictest3524-21snmpd08:20:552
217769943,0cyclictest30244-21awk07:34:522
217769943,0cyclictest28813-21awk12:54:532
217769943,0cyclictest27235-21awk09:24:512
217769943,0cyclictest12770-21awk09:14:512
217759944,0cyclictest0-21swapper/112:51:471
217759944,0cyclictest0-21swapper/111:14:401
217759944,0cyclictest0-21swapper/110:31:191
217759943,0cyclictest30473-21awk08:19:511
217759943,0cyclictest1379-21awk10:44:541
217749944,0cyclictest0-21swapper/012:54:020
217749944,0cyclictest0-21swapper/010:18:540
217749944,0cyclictest0-21swapper/010:13:510
217749943,0cyclictest5085-21awk11:24:560
217749943,0cyclictest12585-21awk08:29:520
217749940,0cyclictest8536-21kthreadcore11:44:550
179940,0migration/19482-21fschecks_count12:24:511
179940,0migration/132115-21kthreadcore11:19:551
179940,0migration/130446-21kthreadcore08:39:541
179940,0migration/129943-21fschecks_count11:39:511
179940,0migration/129931-21kthreadcore10:59:571
179940,0migration/128379-21taskset08:59:551
179940,0migration/12791-21kthreadcore09:04:551
179940,0migration/125704-21kthreadcore09:59:551
179940,0migration/125112-21kthreadcore11:54:561
179940,0migration/124270-21kthreadcore08:14:551
179940,0migration/123588-21kthreadcore07:49:571
179940,0migration/120268-21ntp_kernel_pll_11:49:581
179940,0migration/118859-21fschecks_time09:39:501
179940,0migration/115663-21kthreadcore09:14:541
179940,0migration/11460-21kthreadcore10:04:561
179940,0migration/114596-21kthreadcore10:49:561
179940,0migration/114504-21kthreadcore08:29:541
179940,0migration/110969-21cpuspeed_turbos12:44:501
169940,0watchdog/1419-21ssh12:35:491
169940,0watchdog/131346-21ssh12:16:171
169940,0watchdog/129000-21ssh10:20:081
169940,0watchdog/128089-21if_eth1.209:44:521
169940,0watchdog/118217-21kthreadcore08:54:561
169940,0watchdog/10-21swapper/109:49:521
149940,0migration/0360-21cpuspeed_turbos10:44:500
149940,0migration/027048-21kthreadcore10:39:540
149940,0migration/027048-21kthreadcore10:39:540
149940,0migration/022763-21sh12:10:550
149940,0migration/018731-21sensors_temp11:29:590
149940,0migration/018299-21hddtemp_smartct10:54:510
329930,0watchdog/30-21swapper/308:19:523
329930,0watchdog/30-21swapper/308:10:003
29815030,0irq/29-eth0-tx-0-21swapper/008:04:480
29815030,0irq/29-eth0-tx-0-21swapper/007:44:490
29805030,0irq/28-eth0-rx-0-21swapper/309:24:473
217769932,0cyclictest12727-21awk08:29:532
217769930,0cyclictest0-21swapper/208:59:532
217769930,0cyclictest0-21swapper/207:44:492
217759933,0cyclictest8412-21awk12:04:541
217759932,0cyclictest17797-21cut08:09:531
217759932,0cyclictest16362-21tune2fs12:09:511
217759932,0cyclictest1567-21awk07:59:511
217759932,0cyclictest1432-21awk12:19:531
217759930,0cyclictest1396-21perl08:44:511
217759930,0cyclictest0-21swapper/107:29:481
217749932,0cyclictest28530-21ps09:44:540
217749932,0cyclictest26929-21sh07:54:540
217749932,0cyclictest23541-21awk08:59:510
217749932,0cyclictest18163-21basename09:39:480
217749932,0cyclictest11522-21perl11:09:500
217749930,0cyclictest25227-21tr11:34:550
217749930,0cyclictest19320-21perl07:49:510
217749930,0cyclictest15883-21perl08:09:490
217749930,0cyclictest11706-21munin-node09:15:010
217749930,0cyclictest0-21swapper/012:54:530
217749930,0cyclictest0-21swapper/012:45:030
179930,0migration/13314-21irqcore11:04:531
179930,0migration/132403-21runrttasks07:56:161
169930,0watchdog/10-21swapper/112:54:451
169930,0watchdog/10-21swapper/110:24:561
169930,0watchdog/10-21swapper/110:09:521
169930,0watchdog/10-21swapper/109:54:561
169930,0watchdog/10-21swapper/109:20:001
169930,0watchdog/10-21swapper/108:24:561
169930,0watchdog/10-21swapper/107:44:561
149930,0migration/04787-21fschecks_count08:24:540
29805020,0irq/28-eth0-rx-0-21swapper/307:39:373
217769921,0cyclictest4522-21fschecks_count07:39:502
217749920,0cyclictest0-21swapper/011:54:370
169920,0watchdog/10-21swapper/109:09:401
169920,0watchdog/10-21swapper/107:34:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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