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2026-05-17 - 15:36
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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 376 highest latencies:
System rack1slot2.osadl.org (updated Sun May 17, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2468326564,0sleep20-21swapper/207:20:302
2475024435,0sleep30-21swapper/307:21:153
2470723928,0sleep00-21swapper/007:20:440
2483123526,0sleep10-21swapper/107:22:091
24969991010,0cyclictest6492-21sensors08:13:201
24968991010,0cyclictest30411-21awk11:48:110
249709970,0cyclictest31315-21memory12:23:152
339960,0migration/39226-21munin-node10:18:163
339960,0migration/329678-21sh10:49:213
339960,0migration/323355-21kthreadcore08:03:123
339960,0migration/321930-21sh12:00:413
339960,0migration/315402-21sh12:15:073
339960,0migration/312146-21sh10:38:333
29805060,0irq/28-eth0-rx-29629-21sh09:36:113
29805060,0irq/28-eth0-rx-27591-21ssh12:43:053
29805060,0irq/28-eth0-rx-19625-21unixbench_multi09:28:213
29805060,0irq/28-eth0-rx-13002-21iostat_ios10:23:133
29805060,0irq/28-eth0-rx-12848-21kthreadcore12:33:133
29805060,0irq/28-eth0-rx-11878-21sh12:51:493
249699966,0cyclictest3905-21diskmemload12:17:051
249699966,0cyclictest0-21swapper/110:06:511
249699960,0cyclictest0-21swapper/112:43:341
149960,0migration/032268-21sh09:56:090
149960,0migration/026649-21latency11:43:150
149960,0migration/024902-21sh10:08:360
8305050,0irq/26-0000:00:0-21swapper/211:58:072
4150,0ktimersoftd/00-21swapper/010:48:200
339950,0migration/39657-21aten_r1power_vo10:03:073
339950,0migration/37523-21latency_hist10:57:553
339950,0migration/37267-21latency_hist07:32:553
339950,0migration/35879-21kthreadcore09:23:113
339950,0migration/35428-21kthreadcore11:33:133
339950,0migration/35221-21kthreadcore12:28:123
339950,0migration/35088-21taskset09:38:303
339950,0migration/33372-21unixbench_multi09:18:203
339950,0migration/329380-21cpuspeed_turbos08:33:073
339950,0migration/329113-21aten_r1power_en10:33:073
339950,0migration/328297-21kthreadcore08:08:123
339950,0migration/32389-21kthreadcore09:58:123
339950,0migration/323825-21kthreadcore09:13:143
339950,0migration/323542-21kthreadcore08:48:133
339950,0migration/32276-21diskmemload11:30:383
339950,0migration/320877-21kthreadcore12:38:133
339950,0migration/320102-21kthreadcore10:08:133
339950,0migration/317709-21kthreadcore09:48:123
339950,0migration/314328-21taskset09:04:033
339950,0migration/314054-21aten_r1power_en10:43:063
339950,0migration/313081-21munin-node09:43:133
339950,0migration/312076-21taskset11:38:033
329950,0watchdog/328442-21kthreadcore10:13:143
329950,0watchdog/325795-21awk08:53:063
329950,0watchdog/325379-21tune2fs09:53:103
329950,0watchdog/312840-21cut08:18:133
329950,0watchdog/30-21swapper/308:23:093
329950,0watchdog/30-21swapper/307:53:093
329950,0watchdog/30-21swapper/307:28:133
29815050,0irq/29-eth0-tx-9232-21sh10:02:552
29815050,0irq/29-eth0-tx-7616-21munin-node10:58:062
29815050,0irq/29-eth0-tx-3146-21sed12:28:122
29815050,0irq/29-eth0-tx-25403-21munin-node08:08:200
29815050,0irq/29-eth0-tx-23029-21munin-node12:03:142
29815050,0irq/29-eth0-tx-0-21swapper/211:34:242
29815050,0irq/29-eth0-tx-0-21swapper/210:48:122
29815050,0irq/29-eth0-tx-0-21swapper/210:34:032
29815050,0irq/29-eth0-tx-0-21swapper/210:25:402
29815050,0irq/29-eth0-tx-0-21swapper/209:52:472
29815050,0irq/29-eth0-tx-0-21swapper/209:38:122
29815050,0irq/29-eth0-tx-0-21swapper/008:25:470
29815050,0irq/29-eth0-tx-0-21swapper/008:13:200
29815050,0irq/29-eth0-tx-0-21swapper/007:59:570
29815050,0irq/29-eth0-tx-0-21swapper/007:39:540
29815050,0irq/29-eth0-tx-0-21swapper/007:24:520
29805050,0irq/28-eth0-rx-4873-21kthreadcore12:08:123
29805050,0irq/28-eth0-rx-32694-21aten_r1power_fr08:13:093
29805050,0irq/28-eth0-rx-21109-21python09:08:183
29805050,0irq/28-eth0-rx-0-21swapper/312:23:133
29805050,0irq/28-eth0-rx-0-21swapper/312:05:533
29805050,0irq/28-eth0-rx-0-21swapper/311:53:143
29805050,0irq/28-eth0-rx-0-21swapper/311:48:093
29805050,0irq/28-eth0-rx-0-21swapper/311:25:443
29805050,0irq/28-eth0-rx-0-21swapper/311:22:553
29805050,0irq/28-eth0-rx-0-21swapper/311:08:253
29805050,0irq/28-eth0-rx-0-21swapper/310:57:183
259950,0migration/232407-21kthreadcore12:43:132
259950,0migration/231679-21kthreadcore11:28:142
259950,0migration/228827-21kthreadcore07:23:132
259950,0migration/219866-21kthreadcore07:38:132
259950,0migration/218933-21kthreadcore08:23:142
259950,0migration/21828-21sh10:15:302
259950,0migration/216137-21latency_hist11:02:552
259950,0migration/215918-21sh09:28:132
259950,0migration/214045-21timerandwakeup09:03:192
259950,0migration/213574-21munin-node08:18:172
259950,0migration/212277-21taskset09:26:512
259950,0migration/211646-21latency11:53:142
259950,0migration/211628-21sh12:51:082
249709955,0cyclictest0-21swapper/211:43:212
249709955,0cyclictest0-21swapper/210:03:152
249709954,0cyclictest83050irq/26-0000:00:09:37:492
249699955,0cyclictest0-21swapper/110:30:401
249699955,0cyclictest0-21swapper/108:58:071
249699955,0cyclictest0-21swapper/108:21:511
249699950,0cyclictest0-21swapper/109:56:271
249699950,0cyclictest0-21swapper/109:42:441
249699950,0cyclictest0-21swapper/109:23:581
249689955,0cyclictest0-21swapper/008:03:060
179950,0migration/14945-21gltestperf08:38:091
179950,0migration/131736-21aten_r1power_cu12:08:051
179950,0migration/131208-21munin-node11:08:181
179950,0migration/128875-21taskset09:34:151
179950,0migration/127328-21aten_r1power_vo11:28:081
179950,0migration/124659-21switchtime08:48:201
179950,0migration/115712-21fschecks_time09:08:091
179950,0migration/11462-21taskset10:14:281
179950,0migration/113940-21kthreadcore07:58:121
179950,0migration/113498-21sh11:56:211
179950,0migration/112760-21kthreadcore10:58:141
169950,0watchdog/16885-21needreboot09:58:141
169950,0watchdog/13047-21ssh10:33:181
169950,0watchdog/113220-21ssh10:41:341
149950,0migration/09418-21kthreadcore10:38:130
149950,0migration/0941-21kthreadcore12:43:130
149950,0migration/08594-21sh10:58:100
149950,0migration/0698-21sh12:26:220
149950,0migration/04421-21kthreadcore12:08:120
149950,0migration/0427-21kthreadcore09:18:120
149950,0migration/0427-21kthreadcore08:33:120
149950,0migration/03293-21kthreadcore07:28:130
149950,0migration/032648-21kthreadcore10:33:130
149950,0migration/030242-21runrttasks12:04:400
149950,0migration/028562-21kthreadcore10:13:140
149950,0migration/026656-21kthreadcore08:28:110
149950,0migration/025677-21aten_r1power_po08:53:050
149950,0migration/020658-21kthreadcore09:48:130
149950,0migration/020439-21kthreadcore11:23:150
149950,0migration/019123-21aten_r1power_vo12:38:070
149950,0migration/01866-21kthreadcore10:53:140
149950,0migration/01719-21kthreadcore07:48:110
149950,0migration/015443-21munin-node09:08:090
149950,0migration/014696-21fschecks_time10:43:080
149950,0migration/013886-21sendmail_mailst09:03:160
149950,0migration/013835-21kthreadcore12:13:140
149950,0migration/013464-21smart_sda09:43:170
149950,0migration/010951-21irqrtprio10:03:120
8305040,0irq/26-0000:00:0-21swapper/208:42:542
339940,0migration/38956-21kthreadcore08:38:133
339940,0migration/318168-21irqrtprio12:18:113
339940,0migration/318035-21taskset08:46:453
339940,0migration/31288-21gltestperf08:58:093
329940,0watchdog/32490-21ntp_states07:48:133
329940,0watchdog/30-21swapper/311:43:103
29815040,0irq/29-eth0-tx-8037-21ssh12:13:012
29815040,0irq/29-eth0-tx-19893-21kthreadcore10:08:132
29815040,0irq/29-eth0-tx-14000-21munin-node10:43:112
29815040,0irq/29-eth0-tx-11724-21ssh10:38:202
29815040,0irq/29-eth0-tx-1059-21ssh11:12:562
29815040,0irq/29-eth0-tx-0-21swapper/212:38:142
29815040,0irq/29-eth0-tx-0-21swapper/212:32:592
29815040,0irq/29-eth0-tx-0-21swapper/212:18:252
29815040,0irq/29-eth0-tx-0-21swapper/212:08:082
29815040,0irq/29-eth0-tx-0-21swapper/211:48:202
29815040,0irq/29-eth0-tx-0-21swapper/211:23:132
29815040,0irq/29-eth0-tx-0-21swapper/211:08:422
29815040,0irq/29-eth0-tx-0-21swapper/210:53:042
29815040,0irq/29-eth0-tx-0-21swapper/210:29:112
29805040,0irq/28-eth0-rx-0-21swapper/311:15:353
29805040,0irq/28-eth0-rx-0-21swapper/311:04:413
29805040,0irq/28-eth0-rx-0-21swapper/310:29:343
29805040,0irq/28-eth0-rx-0-21swapper/308:28:183
29805040,0irq/28-eth0-rx-0-21swapper/307:39:123
259940,0migration/27680-21fschecks_count09:43:082
259940,0migration/26849-21timerwakeupswit08:58:202
259940,0migration/230998-21kthreadcore07:48:102
259940,0migration/225563-21runrttasks08:08:062
259940,0migration/224177-21ntp_kernel_pll_08:03:142
259940,0migration/220787-21kthreadcore08:48:122
259940,0migration/216888-21missed_timers07:58:142
249709943,0cyclictest4147-21awk10:18:092
249709943,0cyclictest30347-21awk09:18:102
249709943,0cyclictest23150-21awk09:13:122
249709943,0cyclictest22804-21awk07:43:092
249709943,0cyclictest22804-21awk07:43:092
249709943,0cyclictest16030-21awk09:08:112
249709943,0cyclictest13163-21awk11:38:112
249709943,0cyclictest1256-21awk08:13:132
249699944,0cyclictest0-21swapper/112:20:331
249699944,0cyclictest0-21swapper/107:42:451
249699943,0cyclictest3571-21lldpd11:18:131
249699943,0cyclictest3571-21lldpd11:13:131
249699943,0cyclictest3571-21lldpd07:49:121
249699943,0cyclictest3524-21snmpd11:05:091
249699943,0cyclictest3524-21snmpd10:48:541
249699943,0cyclictest3524-21snmpd10:18:531
249699943,0cyclictest3524-21snmpd10:10:531
249699943,0cyclictest3524-21snmpd08:47:071
249699943,0cyclictest3524-21snmpd08:32:521
249699943,0cyclictest2804-21awk12:28:111
249699943,0cyclictest17062-21awk09:48:111
249689944,0cyclictest0-21swapper/008:43:180
249689943,0cyclictest8587-21awk08:18:110
249689943,0cyclictest3524-21snmpd12:52:400
249689943,0cyclictest3524-21snmpd09:31:380
249689943,0cyclictest22780-21awk07:43:090
249689943,0cyclictest22780-21awk07:43:090
249689943,0cyclictest18220-21sadc11:22:550
249689940,0cyclictest308-21munin-node08:58:080
249940,0watchdog/24191-21df_abs07:53:092
249940,0watchdog/225380-21grep09:53:102
249940,0watchdog/20-21swapper/211:18:142
249940,0watchdog/20-21swapper/207:28:132
179940,0migration/19773-21netstat07:53:161
179940,0migration/130078-21fschecks_time11:48:101
179940,0migration/129078-21latency_hist08:32:541
179940,0migration/128719-21kthreadcore12:23:131
179940,0migration/124369-21kthreadcore07:43:111
179940,0migration/124369-21kthreadcore07:43:111
179940,0migration/121494-21fschecks_time11:43:091
179940,0migration/119440-21gltestperf11:23:121
179940,0migration/115990-21kthreadcore10:43:121
179940,0migration/114523-21aten2.4-expect11:58:071
179940,0migration/113799-21fschecks_time09:28:091
179940,0migration/112422-21sh11:38:081
179940,0migration/110948-21taskset12:49:151
179940,0migration/110476-21aten_r1power_po12:33:081
179940,0migration/110030-21kthreadcore09:03:111
169940,0watchdog/17023-21kthreadcore11:33:141
169940,0watchdog/16612-21users07:28:211
169940,0watchdog/131328-21ssh12:07:381
169940,0watchdog/119108-21ssh10:25:061
169940,0watchdog/115244-21fschecks_count08:23:091
169940,0watchdog/10-21swapper/109:13:141
149940,0migration/08580-21kthreadcore09:23:120
149940,0migration/03573-21fschecks_count10:18:080
149940,0migration/027341-21kthreadcore09:13:150
149940,0migration/025365-21idleruntime-cro08:52:540
149940,0migration/018674-21kthreadcore11:03:110
149940,0migration/017312-21kthreadcore11:38:140
149940,0migration/014522-21kthreadcore10:23:140
8305030,0irq/26-0000:00:0-21swapper/307:22:553
8305030,0irq/26-0000:00:0-21swapper/208:33:112
329930,0watchdog/30-21swapper/307:43:213
329930,0watchdog/30-21swapper/307:43:213
29805030,0irq/28-eth0-rx-0-21swapper/307:58:073
249709932,0cyclictest7951-21tune2fs07:33:072
249709930,0cyclictest0-21swapper/208:28:072
249699932,0cyclictest30386-21awk09:18:101
249699932,0cyclictest20890-21cut08:03:111
249699930,0cyclictest26469-21perl08:53:071
249689933,0cyclictest2233-21awk11:13:110
249689932,0cyclictest8702-21grep11:53:130
249689932,0cyclictest3775-21munin-node07:53:180
249689932,0cyclictest3571-21lldpd10:28:130
249689932,0cyclictest31715-21kthreadcore11:28:140
249689932,0cyclictest1845-21awk09:58:100
249689932,0cyclictest15480-21awk11:58:110
249689931,0cyclictest5362-21grep12:28:130
249689930,0cyclictest22559-21perl09:33:070
249689930,0cyclictest18712-21munin-run12:37:560
249689930,0cyclictest14309-21cat07:37:550
249689930,0cyclictest0-21swapper/012:20:580
249930,0watchdog/20-21swapper/208:53:062
249930,0watchdog/20-21swapper/208:38:102
169930,0watchdog/10-21swapper/112:38:021
169930,0watchdog/10-21swapper/110:52:581
169930,0watchdog/10-21swapper/109:43:061
169930,0watchdog/10-21swapper/108:08:051
169930,0watchdog/10-21swapper/107:33:051
169930,0watchdog/10-21swapper/107:23:091
249689920,0cyclictest0-21swapper/011:33:010
249689920,0cyclictest0-21swapper/011:08:060
249689920,0cyclictest0-21swapper/009:38:000
249689920,0cyclictest0-21swapper/008:38:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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