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2026-03-28 - 16:23
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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 Sat Mar 28, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2479226561,0sleep10-21swapper/107:13:571
3150823728,0sleep30-21swapper/307:16:313
3142123627,0sleep20-21swapper/207:15:302
3144922824,0sleep00-21swapper/007:15:520
317829976,0cyclictest32503-21fschecks_time09:49:011
8305060,0irq/26-0000:00:17133-21yum07:49:133
339960,0migration/322847-21munin-node08:19:063
339960,0migration/31985-21sh10:25:053
339960,0migration/317745-21sh10:16:343
339960,0migration/313041-21sh09:36:543
317829965,0cyclictest22223-21grep07:34:021
317829960,0cyclictest0-21swapper/109:34:021
317749963,0cyclictest17014-21kworker/0:010:13:500
317749963,0cyclictest17014-21kworker/0:009:58:080
317749963,0cyclictest17014-21kworker/0:009:46:560
317749963,0cyclictest17014-21kworker/0:009:30:000
317749963,0cyclictest16549-21kworker/0:112:31:190
317749963,0cyclictest16549-21kworker/0:111:55:490
29815060,0irq/29-eth0-tx-25195-21munin-node08:44:090
29805060,0irq/28-eth0-rx-671-21grep10:44:053
29805060,0irq/28-eth0-rx-6314-21runrttasks10:54:143
29805060,0irq/28-eth0-rx-28659-21sh11:57:083
35150,0ktimersoftd/30-21swapper/308:53:483
339950,0migration/39018-21munin-node11:09:033
339950,0migration/38743-21fschecks_time12:24:033
339950,0migration/37777-21latency_hist12:23:483
339950,0migration/37019-21latency_hist08:08:473
339950,0migration/332396-21df_abs07:18:593
339950,0migration/331547-21kthreadcore08:24:043
339950,0migration/326230-21taskset10:21:123
339950,0migration/319309-21kthreadcore08:14:063
339950,0migration/318965-21munin-node07:54:003
339950,0migration/318428-21kthreadcore09:59:033
339950,0migration/317783-21sh09:19:453
339950,0migration/317508-21diskmemload12:46:123
339950,0migration/310260-21taskset07:47:493
329950,0watchdog/37931-21python10:09:103
329950,0watchdog/36918-21kthreadcore09:14:063
329950,0watchdog/34910-21iostat_ios10:29:063
329950,0watchdog/329153-21fschecks_time07:39:023
329950,0watchdog/328750-21aten2.4-expect09:28:583
329950,0watchdog/325934-21kthreadcore07:34:063
329950,0watchdog/322449-21cut09:24:063
329950,0watchdog/320527-21grep08:39:063
329950,0watchdog/316347-21kthreadcore12:09:033
329950,0watchdog/30-21swapper/311:52:033
329950,0watchdog/30-21swapper/309:43:503
317889955,0cyclictest0-21swapper/212:07:152
317889955,0cyclictest0-21swapper/209:24:322
317889950,0cyclictest0-21swapper/212:14:302
317889950,0cyclictest0-21swapper/211:54:092
317889950,0cyclictest0-21swapper/211:40:172
317889950,0cyclictest0-21swapper/211:18:512
317889950,0cyclictest0-21swapper/210:50:372
317889950,0cyclictest0-21swapper/210:04:542
317829950,0cyclictest0-21swapper/109:29:381
317749953,0cyclictest7674-21kworker/0:107:43:580
317749953,0cyclictest17014-21kworker/0:009:34:480
317749953,0cyclictest17014-21kworker/0:009:19:580
317749953,0cyclictest16549-21kworker/0:112:34:010
317749953,0cyclictest16549-21kworker/0:112:18:590
317749953,0cyclictest16549-21kworker/0:112:13:490
317749953,0cyclictest16549-21kworker/0:112:09:190
317749953,0cyclictest16549-21kworker/0:112:05:130
317749953,0cyclictest16549-21kworker/0:111:58:570
317749953,0cyclictest16549-21kworker/0:111:39:130
317749953,0cyclictest16549-21kworker/0:111:18:590
317749953,0cyclictest16549-21kworker/0:111:16:170
317749953,0cyclictest16549-21kworker/0:111:09:470
317749953,0cyclictest16549-21kworker/0:111:04:430
317749953,0cyclictest16549-21kworker/0:110:56:290
317749953,0cyclictest16549-21kworker/0:110:43:480
317749953,0cyclictest16549-21kworker/0:110:41:420
317749953,0cyclictest16549-21kworker/0:110:34:100
317749953,0cyclictest16549-21kworker/0:110:24:040
317749952,0cyclictest16549-21kworker/0:111:43:490
317749952,0cyclictest16549-21kworker/0:111:24:110
317749950,0cyclictest0-21swapper/012:24:180
29815050,0irq/29-eth0-tx-8004-21munin-node09:54:062
29815050,0irq/29-eth0-tx-7323-21munin-node08:54:060
29815050,0irq/29-eth0-tx-3534-21sshd07:24:020
29815050,0irq/29-eth0-tx-32253-21fschecks_count09:49:012
29815050,0irq/29-eth0-tx-20917-21munin-node10:39:062
29815050,0irq/29-eth0-tx-14968-21ssh12:24:582
29815050,0irq/29-eth0-tx-14901-21forks12:08:592
29815050,0irq/29-eth0-tx-0-21swapper/212:33:442
29815050,0irq/29-eth0-tx-0-21swapper/211:29:492
29815050,0irq/29-eth0-tx-0-21swapper/209:30:502
29815050,0irq/29-eth0-tx-0-21swapper/008:31:340
29805050,0irq/28-eth0-rx-8905-21ssh11:26:043
29805050,0irq/28-eth0-rx-645-21sh10:07:263
29805050,0irq/28-eth0-rx-27098-21kthreadcore10:59:063
29805050,0irq/28-eth0-rx-25092-21cat11:18:473
29805050,0irq/28-eth0-rx-19089-21kthreadcore12:29:063
29805050,0irq/28-eth0-rx-18739-21kthreadcore08:59:053
29805050,0irq/28-eth0-rx-16328-21munin-run09:58:473
29805050,0irq/28-eth0-rx-10462-21kthreadcore07:24:043
29805050,0irq/28-eth0-rx-0-21swapper/312:38:593
29805050,0irq/28-eth0-rx-0-21swapper/312:34:063
29805050,0irq/28-eth0-rx-0-21swapper/311:59:043
29805050,0irq/28-eth0-rx-0-21swapper/311:40:463
29805050,0irq/28-eth0-rx-0-21swapper/311:34:123
29805050,0irq/28-eth0-rx-0-21swapper/309:40:493
27150,0ktimersoftd/20-21swapper/211:51:292
259950,0migration/29607-21munin-node07:44:092
259950,0migration/23680-21kthreadcore10:09:052
259950,0migration/22502-21timerwakeupswit07:39:132
259950,0migration/216482-21needreboot07:49:052
19150,0ktimersoftd/10-21swapper/108:53:481
179950,0migration/17695-21taskset10:09:081
179950,0migration/16795-21taskset08:50:371
179950,0migration/13517-21kthreadcore07:19:041
179950,0migration/131340-21kthreadcore10:24:041
179950,0migration/130075-21kthreadcore11:39:051
179950,0migration/122532-21kthreadcore10:39:051
179950,0migration/121415-21kthreadcore11:34:051
179950,0migration/115913-21sh09:57:411
179950,0migration/115519-21if_eth010:54:031
179950,0migration/111048-21fschecks_count07:48:591
169950,0watchdog/18735-21perl12:24:031
169950,0watchdog/115776-21grep11:29:061
149950,0migration/07923-21munin-node10:09:100
149950,0migration/07354-21kthreadcore12:39:070
149950,0migration/06490-21fschecks_time10:49:020
149950,0migration/03802-21aten2.4-expect09:13:590
149950,0migration/03241-21kthreadcore07:19:040
149950,0migration/031582-21latency_hist09:48:470
149950,0migration/031259-21kthreadcore07:39:060
149950,0migration/030109-21taskset11:00:210
149950,0migration/026932-21kthreadcore10:04:020
149950,0migration/02609-21kthreadcore08:49:040
149950,0migration/025726-21fschecks_time07:59:010
149950,0migration/025347-21unixbench_multi11:34:130
149950,0migration/021930-21cpuspeed_turbos09:04:000
149950,0migration/021483-21kthreadcore09:24:060
149950,0migration/021208-21kthreadcore08:39:060
149950,0migration/017884-21aten_r1power_po07:53:560
149950,0migration/016669-21aten_r1power_fr09:58:570
149950,0migration/016100-21missed_timers12:44:080
149950,0migration/016054-21kthreadcore09:39:040
149950,0migration/014600-21munin-node08:58:590
149950,0migration/014085-21taskset07:28:540
149950,0migration/013242-21taskset08:09:100
149950,0migration/013073-21kthreadcore11:29:060
149950,0migration/012409-21aten_r1power_po11:48:580
149950,0migration/011767-21munin-node07:49:020
339940,0migration/37659-21kthreadcore08:29:053
339940,0migration/330778-21kthreadcore08:44:053
339940,0migration/329126-21kthreadcore07:59:063
339940,0migration/324325-21kthreadcore09:04:053
339940,0migration/32100-21kthreadcore09:49:053
339940,0migration/318569-21rt-features10:34:093
329940,0watchdog/30-21swapper/311:29:063
329940,0watchdog/30-21swapper/310:49:063
329940,0watchdog/30-21swapper/309:09:063
329940,0watchdog/30-21swapper/308:33:583
317889943,0cyclictest724-21awk08:04:032
317889943,0cyclictest3250-21irqbalance08:59:532
317889943,0cyclictest3250-21irqbalance08:44:032
317889943,0cyclictest3250-21irqbalance07:28:532
317889943,0cyclictest3250-21irqbalance07:24:232
317889943,0cyclictest29454-21munin-node10:44:062
317889943,0cyclictest11368-21grep12:44:062
317829944,0cyclictest0-21swapper/112:06:581
317829944,0cyclictest0-21swapper/110:33:001
317829943,0cyclictest3571-21lldpd08:24:001
317829943,0cyclictest3571-21lldpd07:47:001
317829943,0cyclictest3524-21snmpd09:59:211
317829943,0cyclictest3524-21snmpd08:18:501
317829943,0cyclictest2667-21awk12:39:041
317829943,0cyclictest26029-21awk07:59:031
317829943,0cyclictest18533-21sadc10:18:471
317829943,0cyclictest17716-21awk12:29:041
317829940,0cyclictest0-21swapper/111:18:531
317749944,0cyclictest7674-21kworker/0:108:17:320
317749944,0cyclictest7674-21kworker/0:108:06:020
317749944,0cyclictest17014-21kworker/0:008:34:320
317749943,0cyclictest3571-21lldpd08:23:010
317749943,0cyclictest29906-21awk09:09:030
29815040,0irq/29-eth0-tx-27370-21ssh10:23:532
29815040,0irq/29-eth0-tx-2670-21ssh11:24:052
29815040,0irq/29-eth0-tx-19011-21ssh10:34:162
29815040,0irq/29-eth0-tx-18773-21ssh11:33:542
29815040,0irq/29-eth0-tx-16592-21munin-node09:59:032
29815040,0irq/29-eth0-tx-0-21swapper/212:39:052
29815040,0irq/29-eth0-tx-0-21swapper/212:19:022
29815040,0irq/29-eth0-tx-0-21swapper/211:59:052
29815040,0irq/29-eth0-tx-0-21swapper/211:14:042
29815040,0irq/29-eth0-tx-0-21swapper/211:08:572
29815040,0irq/29-eth0-tx-0-21swapper/211:04:092
29815040,0irq/29-eth0-tx-0-21swapper/210:53:582
29815040,0irq/29-eth0-tx-0-21swapper/210:20:082
29815040,0irq/29-eth0-tx-0-21swapper/210:13:532
29815040,0irq/29-eth0-tx-0-21swapper/209:38:472
29815040,0irq/29-eth0-tx-0-21swapper/209:35:212
29815040,0irq/29-eth0-tx-0-21swapper/209:20:412
29815040,0irq/29-eth0-tx-0-21swapper/008:24:060
29805040,0irq/28-eth0-rx-5269-21kthreadcore11:44:053
29805040,0irq/28-eth0-rx-0-21swapper/312:14:063
29805040,0irq/28-eth0-rx-0-21swapper/312:03:553
29805040,0irq/28-eth0-rx-0-21swapper/311:15:133
29805040,0irq/28-eth0-rx-0-21swapper/311:04:003
29805040,0irq/28-eth0-rx-0-21swapper/310:39:133
29805040,0irq/28-eth0-rx-0-21swapper/308:04:033
259940,0migration/28891-21kthreadcore08:09:052
259940,0migration/28538-21irqcore08:54:032
259940,0migration/25390-21kthreadcore08:29:042
259940,0migration/24910-21irqcore11:44:042
259940,0migration/232321-21latency_hist08:48:472
259940,0migration/230526-21kthreadcore08:24:042
259940,0migration/228870-21kthreadcore10:59:062
259940,0migration/228788-21kthreadcore09:44:042
259940,0migration/226126-21munin-node07:59:042
259940,0migration/226116-21fschecks_time12:34:012
259940,0migration/218764-21fschecks_time08:39:022
249940,0watchdog/24908-21ssh10:29:062
249940,0watchdog/24561-21perl09:14:022
249940,0watchdog/225976-21kthreadcore09:04:062
249940,0watchdog/218469-21grep07:53:582
249940,0watchdog/20-21swapper/209:09:062
179940,0migration/13335-21kthreadcore08:04:051
179940,0migration/132154-21munin-node12:19:001
179940,0migration/13096-21kthreadcore11:04:051
179940,0migration/129801-21gltestperf09:09:021
179940,0migration/128971-21missed_timers10:59:071
179940,0migration/127728-21pmu-power09:04:091
179940,0migration/126996-21kthreadcore08:44:041
179940,0migration/116441-21kthreadcore08:14:051
179940,0migration/115299-21fschecks_time12:08:591
179940,0migration/114484-21kthreadcore10:34:041
179940,0migration/114164-21aten_r1power_en09:38:581
179940,0migration/113654-21runrttasks07:26:361
179940,0migration/113550-21irqcore11:49:031
179940,0migration/112815-21sh10:50:081
179940,0migration/111348-21fschecks_count08:33:571
169940,0watchdog/18908-21hwlatdetect11:09:021
169940,0watchdog/16314-21runrttasks11:15:501
169940,0watchdog/129436-21ssh12:14:111
169940,0watchdog/129154-21fschecks_time07:39:021
169940,0watchdog/129013-21ssh11:58:071
169940,0watchdog/122870-21ssh09:43:501
169940,0watchdog/119892-21ssh10:19:021
169940,0watchdog/10-21swapper/112:34:071
169940,0watchdog/10-21swapper/111:24:061
169940,0watchdog/10-21swapper/110:03:541
169940,0watchdog/10-21swapper/109:24:021
169940,0watchdog/10-21swapper/108:29:061
169940,0watchdog/10-21swapper/107:53:581
149940,0migration/05557-21kthreadcore10:29:070
149940,0migration/022728-21irqrtprio07:34:040
149940,0migration/021415-21kthreadcore10:19:040
329930,0watchdog/30-21swapper/307:28:503
317889932,0cyclictest3571-21lldpd07:19:592
317889932,0cyclictest25095-21kthreadcore08:19:072
317889932,0cyclictest22470-21awk07:34:042
317889932,0cyclictest15400-21awk08:14:032
317889932,0cyclictest11946-21awk08:34:002
317829932,0cyclictest20301-21cat08:59:061
317829932,0cyclictest12050-21awk09:19:021
317829932,0cyclictest11333-21awk12:44:051
29805030,0irq/28-eth0-rx-0-21swapper/308:49:023
169930,0watchdog/112391-21kthreadcore08:09:061
169930,0watchdog/10-21swapper/110:44:061
169930,0watchdog/10-21swapper/109:14:061
169930,0watchdog/10-21swapper/108:39:061
169920,0watchdog/10-21swapper/111:58:511
169920,0watchdog/10-21swapper/111:43:501
169920,0watchdog/10-21swapper/107:28:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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