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2026-09-20 - 22:33
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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 Sep 20, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2248127271,0sleep00-21swapper/007:30:460
2251526463,0sleep30-21swapper/307:31:133
2174225655,0sleep10-21swapper/107:28:391
2268023826,0sleep20-21swapper/207:33:082
339960,0migration/36888-21sh11:48:013
339960,0migration/325006-21sh12:15:183
339960,0migration/322396-21gltestperf12:53:303
339960,0migration/321116-21munin-node10:18:343
329960,0watchdog/329554-21ps09:48:333
29815060,0irq/29-eth0-tx-9049-21munin-node08:53:290
29815060,0irq/29-eth0-tx-26947-21munin-node08:43:320
29815060,0irq/29-eth0-tx-19738-21munin-node08:38:400
29805060,0irq/28-eth0-rx-9575-21iostat_ios10:33:313
29805060,0irq/28-eth0-rx-7335-21perl10:13:273
29805060,0irq/28-eth0-rx-10052-21ps09:37:343
227619966,0cyclictest0-21swapper/211:33:372
227609960,0cyclictest1681-21diskmemload11:51:131
169960,0watchdog/113135-21grep08:33:291
149960,0migration/03924-21kthreadcore10:28:320
149960,0migration/031656-21sh10:27:450
149960,0migration/02902-21ntp_offset11:23:350
149960,0migration/017338-21sh10:54:530
149960,0migration/016890-21fschecks_time08:13:270
4150,0ktimersoftd/00-21swapper/012:53:210
339950,0migration/39478-21kthreadcore09:53:323
339950,0migration/38836-21kthreadcore11:28:333
339950,0migration/38039-21kthreadcore09:13:323
339950,0migration/37203-21kthreadcore08:28:313
339950,0migration/35487-21kthreadcore11:08:333
339950,0migration/3395-21unixbench_multi12:18:403
339950,0migration/33475-21unixbench_singl11:23:403
339950,0migration/332542-21munin-node07:58:343
339950,0migration/332415-21munin-node10:28:263
339950,0migration/33217-21kthreadcore08:03:303
339950,0migration/330038-21latency_hist07:38:133
339950,0migration/323869-21munin-node09:03:293
339950,0migration/322110-21df_abs10:03:273
339950,0migration/319795-21idleruntime10:58:313
339950,0migration/319743-21kthreadcore11:53:333
339950,0migration/318929-21kthreadcore08:58:323
339950,0migration/317088-21aten2.4-expect10:38:283
339950,0migration/313661-21switchtime11:48:393
339950,0migration/31332-21idleruntime-cro10:48:143
339950,0migration/312239-21kthreadcore08:53:343
339950,0migration/310937-21latency_hist12:28:143
339950,0migration/310120-21gltestperf12:08:293
329950,0watchdog/330655-21munin-node09:08:253
329950,0watchdog/329165-21hwlatdetect12:38:293
329950,0watchdog/327996-21if_err_eth1.208:43:293
329950,0watchdog/314612-21fschecks_count11:33:293
329950,0watchdog/313136-21fschecks_count08:33:293
329950,0watchdog/30-21swapper/312:06:013
329950,0watchdog/30-21swapper/308:18:333
29815050,0irq/29-eth0-tx-3599-21ssh09:51:422
29815050,0irq/29-eth0-tx-27272-21munin-node11:03:372
29815050,0irq/29-eth0-tx-2414-21munin-node12:23:372
29815050,0irq/29-eth0-tx-2364-21kthreadcore12:03:322
29815050,0irq/29-eth0-tx-20648-21munin-node11:18:332
29815050,0irq/29-eth0-tx-19508-21python09:58:392
29815050,0irq/29-eth0-tx-16240-21ssh12:09:442
29815050,0irq/29-eth0-tx-0-21swapper/212:59:392
29815050,0irq/29-eth0-tx-0-21swapper/210:19:512
29815050,0irq/29-eth0-tx-0-21swapper/009:33:240
29815050,0irq/29-eth0-tx-0-21swapper/007:58:420
29815050,0irq/29-eth0-tx-0-21swapper/007:40:050
29805050,0irq/28-eth0-rx-8517-21kthreadcore07:43:313
29805050,0irq/28-eth0-rx-2891-21uniq12:23:273
29805050,0irq/28-eth0-rx-13110-21if_err_eth111:13:303
29805050,0irq/28-eth0-rx-0-21swapper/312:43:363
29805050,0irq/28-eth0-rx-0-21swapper/311:38:313
29805050,0irq/28-eth0-rx-0-21swapper/310:57:363
29805050,0irq/28-eth0-rx-0-21swapper/310:48:333
29805050,0irq/28-eth0-rx-0-21swapper/310:23:333
29805050,0irq/28-eth0-rx-0-21swapper/309:58:273
29805050,0irq/28-eth0-rx-0-21swapper/309:38:563
259950,0migration/23970-21fschecks_count11:08:292
259950,0migration/23586-21kthreadcore10:28:312
259950,0migration/23108-21irqrtprio10:48:312
259950,0migration/229870-21munin-node09:03:412
259950,0migration/225482-21needreboot07:53:332
259950,0migration/217255-21munin-node12:28:352
259950,0migration/211835-21switchtime11:28:402
249950,0watchdog/23457-21cut09:08:332
249950,0watchdog/221340-21kthreadcore11:53:332
249950,0watchdog/219307-21cut10:38:332
227619955,0cyclictest0-21swapper/211:25:532
227619955,0cyclictest0-21swapper/210:57:402
227619950,0cyclictest0-21swapper/212:34:282
227619950,0cyclictest0-21swapper/212:15:142
227619950,0cyclictest0-21swapper/210:13:222
227619950,0cyclictest0-21swapper/209:43:392
227619950,0cyclictest0-21swapper/209:43:392
227609955,0cyclictest1681-21diskmemload11:40:021
227609955,0cyclictest0-21swapper/112:21:391
227609955,0cyclictest0-21swapper/111:04:521
227609955,0cyclictest0-21swapper/110:54:471
227609955,0cyclictest0-21swapper/108:53:421
227609954,0cyclictest3524-21snmpd09:50:241
227609954,0cyclictest28317-21awk09:28:301
227599955,0cyclictest0-21swapper/011:13:430
179950,0migration/132704-21kthreadcore11:43:301
179950,0migration/129606-21fschecks_count11:23:281
179950,0migration/128464-21sh10:03:481
179950,0migration/125313-21latency09:43:331
179950,0migration/125313-21latency09:43:331
179950,0migration/124747-21missed_timers10:58:351
169950,0watchdog/125412-21grep11:18:331
169950,0watchdog/117597-21tr09:18:331
169950,0watchdog/10-21swapper/112:13:291
149950,0migration/09406-21kthreadcore10:13:310
149950,0migration/06031-21kthreadcore08:48:330
149950,0migration/032217-21kthreadcore12:58:330
149950,0migration/031788-21irqcore08:23:310
149950,0migration/028834-21fschecks_time12:38:280
149950,0migration/028289-21ksmtuned11:21:360
149950,0migration/026270-21kthreadcore09:03:330
149950,0migration/026138-21timerandwakeup12:33:430
149950,0migration/022638-21munin-node11:38:250
149950,0migration/019805-21kthreadcore11:33:340
149950,0migration/019383-21taskset09:19:470
149950,0migration/019319-21latency_hist07:53:130
149950,0migration/014166-21kthreadcore12:08:330
149950,0migration/014017-21idleruntime12:48:300
149950,0migration/011374-21missed_timers09:13:340
4140,0ktimersoftd/00-21swapper/009:49:030
329940,0watchdog/325275-21grep07:53:323
329940,0watchdog/323242-21kthreadcore08:38:333
329940,0watchdog/317596-21cut09:18:333
329940,0watchdog/30-21swapper/312:58:333
329940,0watchdog/30-21swapper/312:33:373
329940,0watchdog/30-21swapper/310:08:333
329940,0watchdog/30-21swapper/309:28:333
329940,0watchdog/30-21swapper/309:23:333
29815040,0irq/29-eth0-tx-21699-21munin-node10:03:272
29815040,0irq/29-eth0-tx-21481-21munin-node12:53:372
29815040,0irq/29-eth0-tx-19919-21munin-node09:23:260
29815040,0irq/29-eth0-tx-12111-21aten2.4-expect11:13:262
29815040,0irq/29-eth0-tx-0-21swapper/212:48:292
29815040,0irq/29-eth0-tx-0-21swapper/212:43:322
29815040,0irq/29-eth0-tx-0-21swapper/212:38:482
29815040,0irq/29-eth0-tx-0-21swapper/211:48:512
29815040,0irq/29-eth0-tx-0-21swapper/211:38:322
29815040,0irq/29-eth0-tx-0-21swapper/210:44:042
29815040,0irq/29-eth0-tx-0-21swapper/210:25:202
29815040,0irq/29-eth0-tx-0-21swapper/210:08:292
29815040,0irq/29-eth0-tx-0-21swapper/209:53:282
29815040,0irq/29-eth0-tx-0-21swapper/209:35:162
29815040,0irq/29-eth0-tx-0-21swapper/008:18:310
29815040,0irq/29-eth0-tx-0-21swapper/008:03:340
29805040,0irq/28-eth0-rx-18892-21kthreadcore08:13:313
29805040,0irq/28-eth0-rx-0-21swapper/312:48:183
29805040,0irq/28-eth0-rx-0-21swapper/311:58:193
29805040,0irq/28-eth0-rx-0-21swapper/311:18:313
29805040,0irq/28-eth0-rx-0-21swapper/311:04:023
29805040,0irq/28-eth0-rx-0-21swapper/309:43:193
29805040,0irq/28-eth0-rx-0-21swapper/309:43:193
29805040,0irq/28-eth0-rx-0-21swapper/307:48:323
29805040,0irq/28-eth0-rx-0-21swapper/307:38:333
259940,0migration/27373-21kthreadcore09:13:322
259940,0migration/25192-21aten_r1power_vo07:43:262
259940,0migration/232355-21kthreadcore09:28:322
259940,0migration/232245-21kthreadcore08:23:312
259940,0migration/227218-21kthreadcore11:58:322
259940,0migration/222805-21kthreadcore10:58:342
259940,0migration/221640-21kthreadcore08:38:322
259940,0migration/218891-21munin-node09:18:362
259940,0migration/217350-21kthreadcore07:48:322
259940,0migration/215493-21kthreadcore09:38:332
249940,0watchdog/25454-21cut08:48:332
249940,0watchdog/222892-21grep09:23:332
249940,0watchdog/213134-21tune2fs08:33:292
227619944,0cyclictest0-21swapper/208:53:352
227619943,0cyclictest3571-21lldpd10:33:212
227619943,0cyclictest3571-21lldpd08:09:192
227619943,0cyclictest3524-21snmpd11:45:422
227619943,0cyclictest3524-21snmpd07:58:372
227619943,0cyclictest3524-21snmpd07:41:372
227619943,0cyclictest3524-21snmpd07:37:522
227619943,0cyclictest27380-21awk12:18:292
227609944,0cyclictest0-21swapper/112:01:381
227609943,0cyclictest6610-21awk09:13:301
227609943,0cyclictest3571-21lldpd12:55:221
227609943,0cyclictest3571-21lldpd08:44:491
227609943,0cyclictest3571-21lldpd08:08:191
227609943,0cyclictest3524-21snmpd09:41:391
227609943,0cyclictest3524-21snmpd08:59:381
227609943,0cyclictest3524-21snmpd08:49:381
227609943,0cyclictest3524-21snmpd08:18:521
227609943,0cyclictest31388-21awk10:08:311
227609943,0cyclictest31117-21awk12:58:301
227609943,0cyclictest26632-21awk10:43:301
227609943,0cyclictest24038-21awk07:33:291
227609943,0cyclictest20818-21awk08:38:301
227609943,0cyclictest14074-21awk12:48:301
227609940,0cyclictest0-21swapper/107:44:391
227599943,0cyclictest6451-21awk08:28:300
227599943,0cyclictest4571-21awk11:08:310
227599943,0cyclictest3571-21lldpd07:35:190
227599943,0cyclictest3524-21snmpd12:19:280
227599943,0cyclictest3524-21snmpd11:31:270
227599943,0cyclictest3250-21irqbalance10:51:500
227599943,0cyclictest32201-21awk11:43:280
227599943,0cyclictest31819-21awk09:08:300
227599943,0cyclictest26554-21awk10:43:300
227599943,0cyclictest1577-21awk12:03:300
227599943,0cyclictest15524-21kworker/0:112:46:380
227599943,0cyclictest12127-21awk12:28:300
227599943,0cyclictest11681-21awk09:38:300
227599943,0cyclictest0-21swapper/008:08:250
227599942,0cyclictest25767-21kworker/0:210:22:550
227599941,0cyclictest0-21swapper/008:33:270
227599940,0cyclictest19516-21munin-node07:53:260
227599940,0cyclictest0-21swapper/010:42:300
179940,0migration/18834-21kthreadcore11:08:341
179940,0migration/15953-21fschecks_count08:28:281
179940,0migration/14332-21latency_hist09:53:141
179940,0migration/13974-21kthreadcore09:33:311
179940,0migration/132648-21missed_timers07:58:341
179940,0migration/130123-21unixbench-2d10:23:401
179940,0migration/12859-21munin-node12:23:271
179940,0migration/125213-21kthreadcore09:23:331
179940,0migration/122988-21ksmtuned10:38:351
179940,0migration/121294-21kthreadcore11:53:331
179940,0migration/118957-21ksmtuned07:49:331
179940,0migration/117153-21kthreadcore09:58:341
179940,0migration/116262-21cpuspeed_turbos08:13:261
179940,0migration/114387-21kthreadcore11:13:321
179940,0migration/112230-21kthreadcore12:08:331
179940,0migration/11155-21kthreadcore08:23:321
179940,0migration/111176-21kthreadcore10:33:321
169940,0watchdog/127032-21ssh12:35:411
169940,0watchdog/125003-21kernelversion09:03:331
169940,0watchdog/114611-21fschecks_count11:33:291
169940,0watchdog/112835-21python10:13:371
169940,0watchdog/110079-21kthreadcore11:28:331
169940,0watchdog/10-21swapper/112:38:291
169940,0watchdog/10-21swapper/112:03:331
169940,0watchdog/10-21swapper/110:48:331
169940,0watchdog/10-21swapper/110:18:571
149940,0migration/02940-21fschecks_count12:23:270
149940,0migration/027674-21kthreadcore11:58:320
149940,0migration/026038-21idleruntime-cro12:18:140
149940,0migration/025974-21runrttasks11:00:150
149940,0migration/020405-21sh09:43:290
149940,0migration/020405-21sh09:43:290
329930,0watchdog/30-21swapper/308:48:333
29815030,0irq/29-eth0-tx-5101-21aten2.4-expect07:43:250
29805030,0irq/28-eth0-rx-0-21swapper/308:08:263
249930,0watchdog/20-21swapper/208:43:292
249930,0watchdog/20-21swapper/208:18:332
249930,0watchdog/20-21swapper/208:03:242
227619933,0cyclictest3571-21lldpd08:13:202
227619932,0cyclictest3571-21lldpd08:28:192
227619932,0cyclictest17390-21awk08:58:302
227609932,0cyclictest5600-21kthreadcore08:03:301
227609932,0cyclictest3571-21lldpd10:28:511
227609932,0cyclictest10753-21sensors12:43:361
227609931,0cyclictest13141-21cut12:28:321
227599933,0cyclictest8288-21kworker/0:011:53:170
227599933,0cyclictest8288-21kworker/0:011:03:170
227599933,0cyclictest8288-21kworker/0:010:33:270
227599933,0cyclictest25767-21kworker/0:210:08:190
227599933,0cyclictest25767-21kworker/0:210:03:150
227599933,0cyclictest25767-21kworker/0:209:58:150
227599933,0cyclictest25767-21kworker/0:209:53:230
227599933,0cyclictest25767-21kworker/0:209:28:150
227599933,0cyclictest25767-21kworker/0:208:58:310
227599933,0cyclictest0-21swapper/011:48:140
169930,0watchdog/10-21swapper/109:08:331
169930,0watchdog/10-21swapper/107:53:321
329920,0watchdog/30-21swapper/308:23:173
227609921,0cyclictest30121-21cat07:38:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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