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2026-01-09 - 15:55
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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 Fri Jan 09, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3005024432,0sleep10-21swapper/107:10:301
3010123726,0sleep30-21swapper/307:11:083
2991923725,0sleep00-21swapper/007:09:010
3015823526,0sleep20-21swapper/207:11:472
339960,0migration/39756-21munin-node08:27:323
339960,0migration/36129-21sh11:54:113
339960,0migration/3340-21sh12:09:083
339960,0migration/325609-21sh10:34:253
329960,0watchdog/38072-21netstat08:22:383
329960,0watchdog/31941-21grep10:57:383
329960,0watchdog/310181-21cut11:22:303
302789960,0cyclictest0-21swapper/008:47:440
29815060,0irq/29-eth0-tx-30490-21munin-node07:12:430
29805060,0irq/28-eth0-rx-4982-21munin-node09:27:333
29805060,0irq/28-eth0-rx-28632-21python11:47:423
29805060,0irq/28-eth0-rx-16590-21fschecks_time11:07:333
29805060,0irq/28-eth0-rx-14171-21df_inode09:32:313
29805060,0irq/28-eth0-rx-0-21swapper/311:35:473
149960,0migration/05654-21sh10:59:580
149960,0migration/022735-21sh11:08:210
149960,0migration/019251-21munin-node08:52:380
149960,0migration/015139-21sh11:59:240
149960,0migration/013605-21sh12:36:410
8305050,0irq/26-0000:00:27233-21crond09:02:182
8305050,0irq/26-0000:00:0-21swapper/208:02:322
339950,0migration/38808-21kthreadcore11:02:363
339950,0migration/37181-21kthreadcore10:42:373
339950,0migration/37105-21kthreadcore07:17:353
339950,0migration/34654-21kthreadcore11:17:373
339950,0migration/332426-21cpuspeed_turbos09:42:313
339950,0migration/33008-21munin-node12:12:333
339950,0migration/329663-21kthreadcore10:17:373
339950,0migration/328671-21kthreadcore07:52:363
339950,0migration/328641-21kthreadcore08:37:343
339950,0migration/328360-21munin-node08:17:353
339950,0migration/324985-21timerandwakeup09:17:433
339950,0migration/32339-21fschecks_count07:37:313
339950,0migration/321650-21munin-node10:12:453
339950,0migration/321456-21kthreadcore12:02:373
339950,0migration/320549-21kthreadcore07:47:353
339950,0migration/320498-21fschecks_time07:27:323
339950,0migration/320161-21munin-node12:22:323
339950,0migration/319955-21kthreadcore09:52:363
339950,0migration/316914-21munin-node12:17:383
339950,0migration/313741-21munin-node10:47:353
339950,0migration/312270-21kthreadcore07:42:353
339950,0migration/31042-21munin-node09:02:373
329950,0watchdog/39422-21sort09:47:303
329950,0watchdog/34845-21smartctl08:42:423
329950,0watchdog/324613-21rm11:12:263
329950,0watchdog/313766-21iostat_ios07:22:333
302809955,0cyclictest0-21swapper/212:34:052
302809950,0cyclictest0-21swapper/212:19:252
302809950,0cyclictest0-21swapper/211:02:572
302809950,0cyclictest0-21swapper/209:24:442
302799955,0cyclictest0-21swapper/110:56:571
302799955,0cyclictest0-21swapper/109:45:511
302799955,0cyclictest0-21swapper/108:32:231
302799950,0cyclictest0-21swapper/112:02:331
302799950,0cyclictest0-21swapper/110:19:071
302799950,0cyclictest0-21swapper/108:23:141
302789955,0cyclictest9387-21diskmemload09:47:290
302789950,0cyclictest19067-21ssh12:21:120
302789950,0cyclictest0-21swapper/009:15:380
29815050,0irq/29-eth0-tx-31599-21interrupts10:57:362
29815050,0irq/29-eth0-tx-30747-21awk11:12:402
29815050,0irq/29-eth0-tx-29084-21cat10:37:352
29815050,0irq/29-eth0-tx-2901-21perl12:12:332
29815050,0irq/29-eth0-tx-25395-21ssh10:33:542
29815050,0irq/29-eth0-tx-21570-21aten_r1power_fr10:52:322
29815050,0irq/29-eth0-tx-21221-21ssh11:45:272
29815050,0irq/29-eth0-tx-19458-21ssh10:48:072
29815050,0irq/29-eth0-tx-17313-21cut09:32:372
29815050,0irq/29-eth0-tx-0-21swapper/212:37:412
29815050,0irq/29-eth0-tx-0-21swapper/212:27:382
29815050,0irq/29-eth0-tx-0-21swapper/212:08:012
29815050,0irq/29-eth0-tx-0-21swapper/211:52:452
29815050,0irq/29-eth0-tx-0-21swapper/211:34:102
29815050,0irq/29-eth0-tx-0-21swapper/211:27:332
29815050,0irq/29-eth0-tx-0-21swapper/210:15:072
29815050,0irq/29-eth0-tx-0-21swapper/209:21:512
29815050,0irq/29-eth0-tx-0-21swapper/007:49:250
29805050,0irq/28-eth0-rx-8801-21if_err_eth1.211:57:353
29805050,0irq/28-eth0-rx-48932sleep307:15:033
29805050,0irq/28-eth0-rx-17448-21kthreadcore08:07:353
29805050,0irq/28-eth0-rx-14118-21ssh12:37:233
29805050,0irq/28-eth0-rx-11644-21munin-node12:32:433
29805050,0irq/28-eth0-rx-0-21swapper/311:46:103
29805050,0irq/28-eth0-rx-0-21swapper/311:40:133
29805050,0irq/28-eth0-rx-0-21swapper/310:52:373
29805050,0irq/28-eth0-rx-0-21swapper/310:38:583
29805050,0irq/28-eth0-rx-0-21swapper/310:31:043
29805050,0irq/28-eth0-rx-0-21swapper/310:22:373
29805050,0irq/28-eth0-rx-0-21swapper/309:39:073
29805050,0irq/28-eth0-rx-0-21swapper/309:24:543
29805050,0irq/28-eth0-rx-0-21swapper/309:16:373
259950,0migration/28981-21latency_hist07:42:192
259950,0migration/2704-21kthreadcore07:12:362
259950,0migration/26145-21munin-node09:42:402
259950,0migration/22572-21irqrtprio11:17:362
259950,0migration/225157-21kthreadcore12:22:372
259950,0migration/219577-21kthreadcore07:47:352
259950,0migration/212989-21aten_r1power_vo08:07:282
249950,0watchdog/29420-21grep09:47:302
19150,0ktimersoftd/10-21swapper/109:55:281
179950,0migration/16862-21kthreadcore11:37:351
179950,0migration/16413-21runrttasks11:54:521
179950,0migration/130623-21latency_hist07:57:191
179950,0migration/12182-21munin-node11:32:451
179950,0migration/111625-21munin-node12:32:421
149950,0migration/09974-21kthreadcore08:02:360
149950,0migration/08125-21kthreadcore07:17:350
149950,0migration/08093-21munin-node07:37:400
149950,0migration/0629-21kthreadcore12:27:390
149950,0migration/031500-21kthreadcore09:57:360
149950,0migration/029619-21kthreadcore07:32:350
149950,0migration/027005-21irqrtprio12:07:360
149950,0migration/025632-21kthreadcore11:47:360
149950,0migration/024343-21sshd12:05:130
149950,0migration/021796-21runrttasks10:13:040
149950,0migration/021748-21kthreadcore08:32:360
149950,0migration/018757-21sendmail_mailqu07:22:390
149950,0migration/018651-21munin-node10:32:320
149950,0migration/016798-21kthreadcore12:37:360
149950,0migration/015581-21kthreadcore11:42:370
149950,0migration/013914-21kthreadcore10:27:370
149950,0migration/013261-21taskset10:08:580
149950,0migration/01224-21kthreadcore11:52:350
149950,0migration/010974-21kthreadcore08:27:360
8305040,0irq/26-0000:00:0-21swapper/209:07:182
339940,0migration/38518-21proc_pri09:07:403
339940,0migration/330319-21kthreadcore09:57:363
329940,0watchdog/39387-21diskmemload11:27:303
329940,0watchdog/30-21swapper/312:27:393
329940,0watchdog/30-21swapper/310:02:343
302809943,0cyclictest4420-21awk10:02:332
302809943,0cyclictest3524-21snmpd11:07:242
302809943,0cyclictest3524-21snmpd09:13:222
302809943,0cyclictest3524-21snmpd09:02:222
302809943,0cyclictest3524-21snmpd08:53:222
302809943,0cyclictest3524-21snmpd08:44:222
302809943,0cyclictest3524-21snmpd08:37:222
302809943,0cyclictest3524-21snmpd08:33:522
302809943,0cyclictest3524-21snmpd08:25:222
302809943,0cyclictest3524-21snmpd07:32:212
302809943,0cyclictest3524-21snmpd07:26:212
302809943,0cyclictest28337-21awk08:17:342
302809943,0cyclictest24614-21awk07:52:342
302809943,0cyclictest21112-21awk08:12:332
302809943,0cyclictest21112-21awk08:12:332
302809943,0cyclictest20869-21awk07:27:342
302809943,0cyclictest16282-21sadc08:32:192
302809940,0cyclictest0-21swapper/210:27:362
302799944,0cyclictest0-21swapper/110:11:141
302799944,0cyclictest0-21swapper/109:59:441
302799944,0cyclictest0-21swapper/109:25:031
302799944,0cyclictest0-21swapper/109:13:041
302799943,0cyclictest8923-21awk11:57:361
302799943,0cyclictest8168-21tr11:02:351
302799943,0cyclictest6454-21awk07:17:341
302799943,0cyclictest3571-21lldpd09:05:511
302799943,0cyclictest3524-21snmpd10:49:541
302799943,0cyclictest3524-21snmpd10:33:531
302799943,0cyclictest3250-21irqbalance08:50:151
302799943,0cyclictest25846-21awk11:12:351
302799943,0cyclictest24856-21awk08:37:321
302799943,0cyclictest24590-21awk07:52:331
302799943,0cyclictest24016-21awk09:37:341
302799943,0cyclictest23321-21awk11:47:341
302799943,0cyclictest21351-21awk08:57:341
302799943,0cyclictest15236-21awk12:37:341
302789944,0cyclictest0-21swapper/010:41:240
302789943,0cyclictest3458-21awk09:07:340
302789943,0cyclictest28502-21awk09:02:330
302789943,0cyclictest24789-21sendmail_mailqu09:17:390
302789943,0cyclictest14734-21kworker/0:212:12:410
302789943,0cyclictest14734-21kworker/0:211:36:130
302789943,0cyclictest14734-21kworker/0:210:17:300
29815040,0irq/29-eth0-tx-7666-21ssh11:57:222
29815040,0irq/29-eth0-tx-2024-21munin-node08:22:350
29815040,0irq/29-eth0-tx-0-21swapper/211:47:302
29815040,0irq/29-eth0-tx-0-21swapper/211:37:242
29815040,0irq/29-eth0-tx-0-21swapper/211:22:232
29815040,0irq/29-eth0-tx-0-21swapper/210:42:202
29815040,0irq/29-eth0-tx-0-21swapper/210:07:352
29815040,0irq/29-eth0-tx-0-21swapper/209:57:312
29815040,0irq/29-eth0-tx-0-21swapper/209:52:212
29815040,0irq/29-eth0-tx-0-21swapper/209:37:362
29815040,0irq/29-eth0-tx-0-21swapper/008:12:450
29815040,0irq/29-eth0-tx-0-21swapper/008:12:450
29815040,0irq/29-eth0-tx-0-21swapper/008:07:330
29815040,0irq/29-eth0-tx-0-21swapper/007:42:340
29815040,0irq/29-eth0-tx-0-21swapper/007:27:340
29805040,0irq/28-eth0-rx-0-21swapper/310:07:383
29805040,0irq/28-eth0-rx-0-21swapper/308:47:293
29805040,0irq/28-eth0-rx-0-21swapper/307:32:303
259940,0migration/28379-21kthreadcore08:47:352
259940,0migration/2786-21forks10:22:312
259940,0migration/22823-21kthreadcore07:57:382
259940,0migration/226566-21kthreadcore10:17:362
259940,0migration/216845-21cpuspeed_turbos12:02:312
259940,0migration/211665-21kthreadcore07:42:352
249940,0watchdog/20-21swapper/209:27:382
249940,0watchdog/20-21swapper/207:17:292
19140,0ktimersoftd/10-21swapper/112:13:541
179940,0migration/15978-21kthreadcore10:22:361
179940,0migration/14955-21kthreadcore09:07:361
179940,0migration/13898-21sh12:29:421
179940,0migration/13604-21cpuspeed_turbos10:02:301
179940,0migration/13292-21kthreadcore08:42:361
179940,0migration/129959-21kthreadcore12:07:371
179940,0migration/123363-21kthreadcore11:27:381
179940,0migration/12234-21if_eth011:17:351
179940,0migration/121268-21kthreadcore07:47:361
179940,0migration/120090-21aten_r1power_en08:12:291
179940,0migration/120090-21aten_r1power_en08:12:291
179940,0migration/118766-21cpuspeed_turbos09:17:301
179940,0migration/115812-21timerandwakeup10:27:441
179940,0migration/113023-21taskset08:52:261
179940,0migration/112205-21kthreadcore08:27:361
179940,0migration/112124-21if_eth112:17:351
169940,0watchdog/19423-21uniq09:47:301
169940,0watchdog/17808-21cut09:27:381
169940,0watchdog/130383-21ssh10:57:301
169940,0watchdog/126952-21ssh12:23:471
169940,0watchdog/123078-21ssh10:16:101
169940,0watchdog/114507-21kthreadcore08:07:341
169940,0watchdog/11238-21taskset07:33:381
169940,0watchdog/10-21swapper/111:22:301
169940,0watchdog/10-21swapper/109:32:301
149940,0migration/07283-21kthreadcore09:27:380
149940,0migration/06821-21runrttasks09:43:060
149940,0migration/0610-21cpuspeed_turbos10:22:300
149940,0migration/05125-21irqrtprio10:42:360
149940,0migration/04399-21open_files07:57:400
149940,0migration/032718-21sh11:16:060
149940,0migration/029493-21kthreadcore08:17:360
149940,0migration/027685-21pmu-power10:52:420
149940,0migration/026829-21runrttasks12:23:270
149940,0migration/017842-21sh09:52:290
329930,0watchdog/30-21swapper/308:12:343
329930,0watchdog/30-21swapper/308:12:343
329930,0watchdog/30-21swapper/308:02:343
302799932,0cyclictest3524-21snmpd10:44:381
302799932,0cyclictest16908-21awk11:07:351
302799932,0cyclictest10266-21awk07:42:341
302799930,0cyclictest29133-21tr08:17:361
302799930,0cyclictest14716-21grep07:22:341
302789933,0cyclictest24832-21awk08:37:310
302789933,0cyclictest14734-21kworker/0:211:22:350
302789933,0cyclictest14734-21kworker/0:211:03:080
302789933,0cyclictest14734-21kworker/0:210:02:300
302789933,0cyclictest14734-21kworker/0:209:37:320
302789933,0cyclictest13539-21kworker/0:109:32:260
302789933,0cyclictest13539-21kworker/0:109:22:260
302789932,0cyclictest30936-21munin-node08:42:390
302789932,0cyclictest23512-21munin-node07:52:380
302789932,0cyclictest14734-21kworker/0:211:27:330
302789932,0cyclictest1091-21ssh11:17:290
302789932,0cyclictest10803-21sensors11:37:390
29815030,0irq/29-eth0-tx-0-21swapper/008:57:300
29805030,0irq/28-eth0-rx-0-21swapper/308:57:303
29805030,0irq/28-eth0-rx-0-21swapper/308:32:293
29805030,0irq/28-eth0-rx-0-21swapper/307:57:313
179930,0migration/129225-21kthreadcore10:37:351
169930,0watchdog/114393-21ssh11:42:341
149930,0migration/012534-21runrttasks10:47:230
329920,0watchdog/30-21swapper/308:52:223
302799921,0cyclictest3552-21lldpd07:37:211
302799920,0cyclictest30413-21cat07:12:191
19120,0ktimersoftd/119751-21latency_hist07:27:191
169920,0watchdog/10-21swapper/108:02:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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