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2026-05-10 - 22:52
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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 Sun May 10, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
732424636,0sleep30-21swapper/307:17:313
1422123723,0sleep00-21swapper/007:22:120
1409123627,0sleep20-21swapper/207:20:422
1386023223,0sleep10-21swapper/107:18:011
339960,0migration/38426-21munin-node09:27:403
339960,0migration/3836-21sh09:24:473
339960,0migration/34380-21sh11:00:193
339960,0migration/331142-21sh11:32:393
339960,0migration/317135-21sh10:30:163
339960,0migration/315992-21munin-node08:52:353
329960,0watchdog/331125-21wc10:02:313
329960,0watchdog/327078-21sh09:38:553
29815060,0irq/29-eth0-tx-18658-21munin-node09:17:430
29805060,0irq/28-eth0-rx-27580-21perl10:37:353
29805060,0irq/28-eth0-rx-10038-21ssh11:42:263
143099960,0cyclictest0-21swapper/211:13:422
149960,0migration/09423-21kthreadcore12:17:370
149960,0migration/022383-21sh12:25:510
149960,0migration/010566-21timerandwakeup09:07:470
8305050,0irq/26-0000:00:3958-21uptime12:12:442
8305050,0irq/26-0000:00:21061-21vmstat07:22:453
8305050,0irq/26-0000:00:10835-21sadc09:32:202
4150,0ktimersoftd/00-21swapper/012:42:510
4150,0ktimersoftd/00-21swapper/010:13:010
339950,0migration/38942-21irqrtprio08:02:403
339950,0migration/37425-21kthreadcore11:02:363
339950,0migration/3740-21irqcore12:32:373
339950,0migration/37334-21taskset08:45:453
339950,0migration/36624-21kthreadcore08:22:383
339950,0migration/3491-21kthreadcore12:12:363
339950,0migration/34695-21sh09:47:123
339950,0migration/33057-21kthreadcore10:22:383
339950,0migration/328135-21kthreadcore08:37:383
339950,0migration/326296-21fschecks_time12:47:343
339950,0migration/325602-21munin-node07:52:313
339950,0migration/324463-21kthreadcore08:12:373
339950,0migration/323691-21kthreadcore10:52:383
339950,0migration/321932-21cpu07:27:323
339950,0migration/316565-21kthreadcore09:52:383
339950,0migration/314280-21kthreadcore12:02:383
339950,0migration/313029-21kthreadcore10:07:403
339950,0migration/312337-21munin-node09:32:373
329950,0watchdog/331409-21sh10:18:033
329950,0watchdog/319625-21smartctl09:17:353
329950,0watchdog/319094-21perl07:47:353
329950,0watchdog/316946-21idleruntime10:12:353
329950,0watchdog/314719-21kthreadcore08:27:393
329950,0watchdog/311759-21ssh12:01:363
29815050,0irq/29-eth0-tx-9574-21munin-node10:27:402
29815050,0irq/29-eth0-tx-9103-21ssh10:26:492
29815050,0irq/29-eth0-tx-6328-21ssh10:42:382
29815050,0irq/29-eth0-tx-31406-21munin-node11:17:372
29815050,0irq/29-eth0-tx-27503-21cut10:17:382
29815050,0irq/29-eth0-tx-25009-21munin-node11:32:352
29815050,0irq/29-eth0-tx-14718-21munin-node08:07:420
29815050,0irq/29-eth0-tx-12983-21ssh11:05:112
29815050,0irq/29-eth0-tx-0-21swapper/212:35:232
29815050,0irq/29-eth0-tx-0-21swapper/212:02:322
29815050,0irq/29-eth0-tx-0-21swapper/211:32:152
29815050,0irq/29-eth0-tx-0-21swapper/210:58:512
29815050,0irq/29-eth0-tx-0-21swapper/009:22:320
29815050,0irq/29-eth0-tx-0-21swapper/008:00:140
29815050,0irq/29-eth0-tx-0-21swapper/008:00:140
29805050,0irq/28-eth0-rx-4386-21munin-node10:42:373
29805050,0irq/28-eth0-rx-2918-21munin-node08:17:413
29805050,0irq/28-eth0-rx-2722-21irqrtprio11:37:383
29805050,0irq/28-eth0-rx-25634-21kthreadcore08:57:393
29805050,0irq/28-eth0-rx-2532-21ntp_states07:32:403
29805050,0irq/28-eth0-rx-23158-21chrt12:27:243
29805050,0irq/28-eth0-rx-18031-21sed12:42:383
29805050,0irq/28-eth0-rx-0-21swapper/312:38:133
29805050,0irq/28-eth0-rx-0-21swapper/312:17:383
29805050,0irq/28-eth0-rx-0-21swapper/311:27:423
29805050,0irq/28-eth0-rx-0-21swapper/311:08:323
29805050,0irq/28-eth0-rx-0-21swapper/310:47:223
29805050,0irq/28-eth0-rx-0-21swapper/310:32:333
29805050,0irq/28-eth0-rx-0-21swapper/309:58:133
259950,0migration/28190-21kthreadcore08:22:392
259950,0migration/229582-21fschecks_time09:42:342
259950,0migration/222968-21fschecks_time09:57:332
259950,0migration/221934-21sh12:24:342
259950,0migration/221411-21sh09:55:382
259950,0migration/216411-21kthreadcore07:22:362
259950,0migration/214641-21kthreadcore08:27:392
249950,0watchdog/214787-21kthreadcore09:12:392
179950,0migration/18345-21kthreadcore09:47:381
179950,0migration/14613-21sh11:00:581
179950,0migration/132141-21sh11:33:531
179950,0migration/128784-21taskset08:15:501
179950,0migration/127986-21fschecks_time11:52:341
179950,0migration/126099-21taskset11:49:431
179950,0migration/125441-21latency_hist08:37:191
179950,0migration/124949-21kthreadcore08:57:371
179950,0migration/121661-21fschecks_time12:07:341
179950,0migration/119445-21fschecks_time09:17:351
169950,0watchdog/14722-21sh10:02:391
143099955,0cyclictest25609-21diskmemload10:35:522
143099955,0cyclictest0-21swapper/212:42:472
143099955,0cyclictest0-21swapper/211:42:342
143099955,0cyclictest0-21swapper/210:55:442
143099950,0cyclictest0-21swapper/212:10:092
143099950,0cyclictest0-21swapper/209:38:292
143089950,0cyclictest0-21swapper/112:37:351
143089950,0cyclictest0-21swapper/111:42:431
143089950,0cyclictest0-21swapper/111:22:421
143079955,0cyclictest0-21swapper/010:20:500
143079955,0cyclictest0-21swapper/010:11:320
143079955,0cyclictest0-21swapper/009:27:420
143079954,0cyclictest3524-21snmpd11:12:440
143079950,0cyclictest0-21swapper/011:59:130
143079950,0cyclictest0-21swapper/010:30:550
149950,0migration/09258-21kthreadcore09:47:380
149950,0migration/07301-21taskset08:45:190
149950,0migration/06028-21fschecks_count11:02:320
149950,0migration/05883-21switchtime12:32:450
149950,0migration/05501-21kthreadcore11:37:390
149950,0migration/04179-21kthreadcore10:02:370
149950,0migration/032562-21taskset08:42:030
149950,0migration/032333-21kthreadcore09:42:380
149950,0migration/031938-21unixbench_singl07:52:440
149950,0migration/031453-21kthreadcore10:57:380
149950,0migration/028315-21kthreadcore12:47:380
149950,0migration/027486-21aten_r1power_vo11:52:330
149950,0migration/026884-21kthreadcore08:57:380
149950,0migration/025253-21cpuspeed_turbos11:32:310
149950,0migration/022494-21kthreadcore09:37:370
149950,0migration/022402-21kthreadcore10:52:380
149950,0migration/021112-21kthreadcore11:27:380
149950,0migration/019510-21kthreadcore08:52:380
149950,0migration/018871-21munin-node08:32:330
149950,0migration/018811-21taskset10:48:310
149950,0migration/015300-21kthreadcore11:42:400
149950,0migration/014108-21smart_sdb11:22:440
149950,0migration/012399-21hwlatdetect09:12:360
149950,0migration/010506-21kthreadcore12:37:380
339940,0migration/314355-21kthreadcore07:42:373
329940,0watchdog/328819-21munin-node11:12:393
329940,0watchdog/321047-21munin-node12:07:323
329940,0watchdog/314790-21sh11:23:393
329940,0watchdog/312334-21kthreadcore08:47:393
329940,0watchdog/30-21swapper/309:12:393
29815040,0irq/29-eth0-tx-26744-21ssh10:37:222
29815040,0irq/29-eth0-tx-26655-21iostat12:47:362
29815040,0irq/29-eth0-tx-17272-21pmu-power09:32:422
29815040,0irq/29-eth0-tx-0-21swapper/212:37:442
29815040,0irq/29-eth0-tx-0-21swapper/212:27:232
29815040,0irq/29-eth0-tx-0-21swapper/211:57:492
29815040,0irq/29-eth0-tx-0-21swapper/211:52:282
29815040,0irq/29-eth0-tx-0-21swapper/211:47:242
29815040,0irq/29-eth0-tx-0-21swapper/211:23:402
29815040,0irq/29-eth0-tx-0-21swapper/211:07:502
29815040,0irq/29-eth0-tx-0-21swapper/210:07:352
29815040,0irq/29-eth0-tx-0-21swapper/209:22:522
29815040,0irq/29-eth0-tx-0-21swapper/008:27:330
29815040,0irq/29-eth0-tx-0-21swapper/008:25:190
29815040,0irq/29-eth0-tx-0-21swapper/008:17:310
29805040,0irq/28-eth0-rx-24825-21munin-node11:47:413
29805040,0irq/28-eth0-rx-0-21swapper/312:22:263
29805040,0irq/28-eth0-rx-0-21swapper/311:53:163
29805040,0irq/28-eth0-rx-0-21swapper/311:17:393
29805040,0irq/28-eth0-rx-0-21swapper/309:47:313
29805040,0irq/28-eth0-rx-0-21swapper/309:07:403
259940,0migration/27588-21aten_r1power_en08:02:342
259940,0migration/228181-21switchtime08:12:452
259940,0migration/227780-21kthreadcore08:57:392
259940,0migration/227259-21kthreadcore07:52:362
259940,0migration/221951-21kthreadcore07:47:392
259940,0migration/220843-21taskset08:52:392
259940,0migration/216735-21fschecks_time10:12:342
259940,0migration/214764-21kthreadcore07:42:372
259940,0migration/211320-21kthreadcore08:47:392
259940,0migration/210923-21runrttasks09:09:272
249940,0watchdog/26706-21kthreadcore11:37:402
249940,0watchdog/231124-21egrep10:02:312
249940,0watchdog/216111-21kthreadcore10:47:392
179940,0migration/19507-21taskset09:29:081
179940,0migration/18982-21taskset11:40:081
179940,0migration/17396-21kthreadcore11:02:361
179940,0migration/14133-21gltestperf10:42:351
179940,0migration/131632-21munin-node11:17:331
179940,0migration/131359-21runrttasks10:17:551
179940,0migration/13073-21kthreadcore12:12:371
179940,0migration/130687-21irqrtprio08:17:361
179940,0migration/129270-21fschecks_count09:42:331
179940,0migration/127041-21kthreadcore12:27:381
179940,0migration/126147-21fschecks_time07:52:321
179940,0migration/125914-21cpuspeed_turbos08:37:331
179940,0migration/122410-21taskset12:25:561
179940,0migration/119556-21kthreadcore07:22:371
179940,0migration/116448-21aten_r1power_en11:27:311
179940,0migration/115768-21kthreadcore12:02:381
179940,0migration/112995-21kthreadcore10:27:371
169940,0watchdog/17670-21telnet08:02:351
169940,0watchdog/12480-21netstat07:32:391
169940,0watchdog/124305-21ssh12:45:001
169940,0watchdog/116945-21idleruntime10:12:351
169940,0watchdog/115302-21iostat_ios11:07:391
169940,0watchdog/112335-21kthreadcore08:47:391
169940,0watchdog/110811-21tr10:07:391
169940,0watchdog/10-21swapper/112:17:321
169940,0watchdog/10-21swapper/109:12:391
143099944,0cyclictest305350irq/27-eth109:06:552
143099944,0cyclictest305350irq/27-eth107:33:552
143099944,0cyclictest0-21swapper/207:37:432
143099943,0cyclictest7128-21awk12:17:362
143099943,0cyclictest6198-21awk09:47:362
143099943,0cyclictest30233-21awk08:17:352
143099943,0cyclictest26716-21awk08:37:362
143099943,0cyclictest19707-21awk09:17:362
143099943,0cyclictest19592-21awk08:32:362
143099943,0cyclictest15753-21awk08:07:352
143099943,0cyclictest1483-21awk08:42:352
143099943,0cyclictest1249-21awk07:57:352
143099943,0cyclictest1249-21awk07:57:352
143089944,0cyclictest0-21swapper/111:57:421
143089943,0cyclictest457-21awk12:32:361
143089943,0cyclictest3571-21lldpd09:40:151
143089943,0cyclictest3524-21snmpd12:48:141
143089943,0cyclictest3524-21snmpd09:04:271
143089943,0cyclictest3524-21snmpd07:58:271
143089943,0cyclictest3524-21snmpd07:58:271
143089943,0cyclictest3524-21snmpd07:47:421
143089943,0cyclictest30687-21sadc10:02:201
143089943,0cyclictest27959-21awk10:37:371
143089943,0cyclictest23826-21awk11:12:361
143089943,0cyclictest2025-21awk10:22:361
143089943,0cyclictest19230-21awk10:32:351
143089943,0cyclictest12837-21sort10:47:361
143089943,0cyclictest12286-21awk08:27:361
143079944,0cyclictest0-21swapper/012:08:310
143079943,0cyclictest4346-21awk10:42:370
143079943,0cyclictest3524-21snmpd12:13:290
143079943,0cyclictest3524-21snmpd10:24:280
143079943,0cyclictest3524-21snmpd09:02:270
143079943,0cyclictest3524-21snmpd07:33:120
143079943,0cyclictest19284-21awk07:47:360
143079943,0cyclictest14831-21awk09:52:360
143079943,0cyclictest12313-21awk09:32:370
149940,0migration/029848-21kthreadcore10:37:390
149940,0migration/023152-21irqcore08:12:360
149940,0migration/017663-21kthreadcore07:22:370
4130,0ktimersoftd/031405-21runrttasks11:17:310
4130,0ktimersoftd/012318-21munin-node12:02:360
329930,0watchdog/30-21swapper/309:02:313
329930,0watchdog/30-21swapper/308:32:353
329930,0watchdog/30-21swapper/308:07:353
329930,0watchdog/30-21swapper/307:57:473
329930,0watchdog/30-21swapper/307:57:473
329930,0watchdog/30-21swapper/307:37:313
179930,0migration/114004-21cpuspeed_turbos09:52:331
169930,0watchdog/10-21swapper/109:32:391
169930,0watchdog/10-21swapper/108:22:391
169930,0watchdog/10-21swapper/107:42:311
143099933,0cyclictest22843-21awk07:27:352
143089932,0cyclictest3524-21snmpd09:07:271
143089932,0cyclictest3524-21snmpd08:46:571
143089932,0cyclictest3524-21snmpd08:07:271
143089932,0cyclictest22780-21awk07:27:351
143089932,0cyclictest21584-21awk10:52:361
143089932,0cyclictest20030-21grep08:52:381
143089932,0cyclictest10020-21sensors07:37:421
143089930,0cyclictest26678-21perl09:22:321
143079933,0cyclictest8697-21awk08:02:390
143079932,0cyclictest8780-21awk08:47:360
143079932,0cyclictest3810-21munin-node07:37:410
143079932,0cyclictest24403-21awk12:27:370
143079930,0cyclictest22476-21perl07:27:330
143079930,0cyclictest14967-21perl11:07:370
143079930,0cyclictest0-21swapper/007:42:360
149930,0migration/026132-21sh11:49:490
149930,0migration/024494-21sh10:32:430
149930,0migration/022411-21diskmemload09:57:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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