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2026-08-22 - 23:09
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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 Aug 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1194726160,0sleep00-21swapper/007:28:540
1195824940,0sleep10-21swapper/107:29:031
1187324637,0sleep20-21swapper/207:28:042
1175823127,0sleep30-21swapper/307:26:413
339960,0migration/330061-21munin-node09:31:133
339960,0migration/320866-21switchtime10:41:163
339960,0migration/317422-21sh11:19:223
29815060,0irq/29-eth0-tx-12818-21munin-node09:01:060
29805060,0irq/28-eth0-rx-17954-21python11:36:173
249960,0watchdog/28708-21grep10:16:102
149960,0migration/0638-21missed_timers09:11:100
149960,0migration/04403-21kthreadcore08:31:080
149960,0migration/031000-21sh09:33:200
149960,0migration/01190-21sh09:53:420
121869966,0cyclictest0-21swapper/209:57:412
121859966,0cyclictest23535-21diskmemload10:11:061
121859960,0cyclictest0-21swapper/112:11:041
8305050,0irq/26-0000:00:30294-21latency_hist12:05:512
339950,0migration/3995-21kthreadcore12:06:093
339950,0migration/3952-21munin-node08:26:183
339950,0migration/37756-21kthreadcore11:51:103
339950,0migration/326849-21latency_hist08:25:513
339950,0migration/326111-21aten_r1power_po09:51:043
339950,0migration/324251-21hddtemp_smartct08:01:063
339950,0migration/321010-21irqrtprio07:36:073
339950,0migration/320686-21kthreadcore08:41:083
339950,0migration/320029-21latency_hist11:40:513
339950,0migration/31990-21kthreadcore08:51:093
339950,0migration/319725-21fschecks_count12:56:063
339950,0migration/319124-21timerandwakeup10:21:173
339950,0migration/31793-21munin-node10:11:133
339950,0migration/316184-21latency_hist08:40:513
339950,0migration/316088-21kthreadcore07:31:073
339950,0migration/312932-21aten_r1power_po09:01:033
339950,0migration/312204-21kthreadcore09:21:083
329950,0watchdog/37412-21sendmail_mailst11:11:143
329950,0watchdog/33779-21cut12:46:113
329950,0watchdog/332323-21fschecks_time10:51:063
329950,0watchdog/330659-21kthreadcore07:41:103
329950,0watchdog/330275-21kernelversion11:46:103
329950,0watchdog/327099-21memory10:26:103
329950,0watchdog/325722-21perl11:06:063
329950,0watchdog/321295-21latency12:16:103
329950,0watchdog/310312-21ssh10:00:103
329950,0watchdog/30-21swapper/311:26:063
329950,0watchdog/30-21swapper/310:06:103
329950,0watchdog/30-21swapper/307:51:103
29815050,0irq/29-eth0-tx-31764-21ssh09:35:232
29815050,0irq/29-eth0-tx-22005-21munin-node12:01:112
29815050,0irq/29-eth0-tx-16329-21munin-node11:01:082
29815050,0irq/29-eth0-tx-15561-21ssh12:31:392
29815050,0irq/29-eth0-tx-0-21swapper/212:48:402
29815050,0irq/29-eth0-tx-0-21swapper/212:35:542
29815050,0irq/29-eth0-tx-0-21swapper/212:30:362
29815050,0irq/29-eth0-tx-0-21swapper/211:12:592
29815050,0irq/29-eth0-tx-0-21swapper/008:13:210
29805050,0irq/28-eth0-rx-9101-21strings11:31:093
29805050,0irq/28-eth0-rx-32748-21grep12:26:053
29805050,0irq/28-eth0-rx-24892-21gltestperf12:21:063
29805050,0irq/28-eth0-rx-17174-21date09:45:503
29805050,0irq/28-eth0-rx-16734-21kthreadcore11:56:093
29805050,0irq/28-eth0-rx-0-21swapper/312:33:433
29805050,0irq/28-eth0-rx-0-21swapper/312:11:003
29805050,0irq/28-eth0-rx-0-21swapper/310:56:503
29805050,0irq/28-eth0-rx-0-21swapper/310:50:253
29805050,0irq/28-eth0-rx-0-21swapper/310:36:043
29805050,0irq/28-eth0-rx-0-21swapper/310:31:563
29805050,0irq/28-eth0-rx-0-21swapper/310:16:583
29805050,0irq/28-eth0-rx-0-21swapper/310:00:583
29805050,0irq/28-eth0-rx-0-21swapper/309:50:103
29805050,0irq/28-eth0-rx-0-21swapper/309:36:003
29805050,0irq/28-eth0-rx-0-21swapper/308:55:513
259950,0migration/26552-21kthreadcore11:51:102
259950,0migration/23940-21gltestperf11:31:042
259950,0migration/231599-21fschecks_time08:51:052
259950,0migration/228996-21needreboot10:46:122
259950,0migration/226761-21idleruntime-cro08:25:512
259950,0migration/217224-21latency_hist09:45:512
259950,0migration/215366-21pmu-power09:21:112
259950,0migration/213471-21kthreadcore11:36:102
249950,0watchdog/231506-21grep11:06:182
249950,0watchdog/215217-21grep11:16:102
249950,0watchdog/20-21swapper/211:46:102
179950,0migration/1911-21timerandwakeup08:26:181
179950,0migration/17985-21switchtime07:46:151
179950,0migration/14269-21kthreadcore12:26:101
179950,0migration/13028-21fschecks_time09:56:031
179950,0migration/127053-21kthreadcore09:31:091
179950,0migration/123674-21kthreadcore10:26:091
179950,0migration/122364-21kthreadcore11:21:091
179950,0migration/114167-21fschecks_time11:56:051
179950,0migration/113477-21kthreadcore11:36:101
179950,0migration/110859-21kthreadcore09:41:081
169950,0watchdog/124494-21cut10:06:101
149950,0migration/07340-21kthreadcore09:16:100
149950,0migration/05249-21taskset08:54:460
149950,0migration/029333-21kthreadcore11:26:100
149950,0migration/028711-21munin-node12:01:170
149950,0migration/026096-21kthreadcore10:46:100
149950,0migration/024288-21idleruntime08:01:070
149950,0migration/023034-21kthreadcore10:26:080
149950,0migration/022356-21taskset10:44:490
149950,0migration/022299-21munin-node11:01:110
149950,0migration/021212-21sh09:06:060
149950,0migration/021030-21sh11:58:520
149950,0migration/020713-21kthreadcore12:16:100
149950,0migration/020632-21kthreadcore11:21:090
149950,0migration/019231-21kthreadcore08:41:080
149950,0migration/019081-21taskset07:32:400
149950,0migration/017735-21taskset09:26:080
149950,0migration/017391-21irqcore07:56:090
149950,0migration/016810-21munin-node10:01:120
149950,0migration/01548-21idleruntime-cro08:30:510
149950,0migration/015039-21sh12:15:370
149950,0migration/013783-21kthreadcore11:16:100
149950,0migration/011836-21munin-node12:51:080
149950,0migration/011764-21kthreadcore09:21:080
149950,0migration/010755-21kthreadcore08:56:110
149950,0migration/010672-21kthreadcore07:51:080
149950,0migration/010463-21kthreadcore12:31:100
121869955,0cyclictest0-21swapper/212:40:522
121869955,0cyclictest0-21swapper/210:54:462
121869954,0cyclictest20344-21awk12:56:082
121849955,0cyclictest0-21swapper/012:57:580
121849955,0cyclictest0-21swapper/012:48:490
121849955,0cyclictest0-21swapper/011:31:060
121849950,0cyclictest0-21swapper/011:40:430
121849950,0cyclictest0-21swapper/011:14:230
121849950,0cyclictest0-21swapper/010:39:040
339940,0migration/38511-21taskset07:48:553
339940,0migration/325855-21diskmemload12:41:033
339940,0migration/324400-21kthreadcore09:06:073
339940,0migration/323173-21if_eth1.212:01:073
339940,0migration/319112-21kthreadcore11:01:093
339940,0migration/319050-21kthreadcore12:36:093
339940,0migration/318465-21cpuspeed_turbos11:21:043
339940,0migration/312964-21df_abs08:16:043
329940,0watchdog/38593-40yum-updatesd-he08:32:463
329940,0watchdog/321515-21cut09:26:103
329940,0watchdog/30-21swapper/312:51:113
329940,0watchdog/30-21swapper/309:16:063
329940,0watchdog/30-21swapper/308:46:103
329940,0watchdog/30-21swapper/307:56:063
29815040,0irq/29-eth0-tx-13694-21ssh12:11:392
29815040,0irq/29-eth0-tx-0-21swapper/212:21:102
29815040,0irq/29-eth0-tx-0-21swapper/211:55:542
29815040,0irq/29-eth0-tx-0-21swapper/211:26:102
29815040,0irq/29-eth0-tx-0-21swapper/211:20:582
29815040,0irq/29-eth0-tx-0-21swapper/210:56:052
29815040,0irq/29-eth0-tx-0-21swapper/210:30:562
29815040,0irq/29-eth0-tx-0-21swapper/210:26:042
29815040,0irq/29-eth0-tx-0-21swapper/210:10:582
29815040,0irq/29-eth0-tx-0-21swapper/210:02:172
29815040,0irq/29-eth0-tx-0-21swapper/209:51:122
29815040,0irq/29-eth0-tx-0-21swapper/209:43:322
29815040,0irq/29-eth0-tx-0-21swapper/008:21:040
29815040,0irq/29-eth0-tx-0-21swapper/008:18:220
29815040,0irq/29-eth0-tx-0-21swapper/007:46:070
29805040,0irq/28-eth0-rx-0-21swapper/308:11:023
29805040,0irq/28-eth0-rx-0-21swapper/308:06:043
259940,0migration/27764-21kthreadcore09:16:102
259940,0migration/25455-21aten_r1power_po08:11:022
259940,0migration/228935-21kthreadcore09:11:092
259940,0migration/22372-21fschecks_count08:31:042
259940,0migration/221608-21kthreadcore08:41:092
259940,0migration/220596-21kthreadcore09:26:102
259940,0migration/218925-21kthreadcore12:16:102
259940,0migration/217512-21kthreadcore10:41:092
259940,0migration/216855-21fschecks_time07:56:052
259940,0migration/214266-21kthreadcore07:51:092
259940,0migration/212027-21munin-node10:36:122
259940,0migration/211321-21fschecks_time12:51:062
249940,0watchdog/28030-21cut08:56:102
249940,0watchdog/23434-21kthreadcore09:36:102
249940,0watchdog/230658-21kthreadcore07:41:102
249940,0watchdog/225086-21kthreadcore08:46:102
249940,0watchdog/21174-21seq08:26:502
249940,0watchdog/20-21swapper/210:06:102
179940,0migration/18363-21kthreadcore10:36:091
179940,0migration/132697-21kthreadcore08:51:081
179940,0migration/130832-21cpuspeed_turbos12:06:041
179940,0migration/13066-21irqcore08:31:071
179940,0migration/129323-21fschecks_count11:46:071
179940,0migration/127006-21kthreadcore11:06:101
179940,0migration/126936-21aten_r1power_fr07:41:031
179940,0migration/126892-21sh11:41:231
179940,0migration/126011-21munin-node09:06:101
179940,0migration/122746-21kthreadcore12:36:101
179940,0migration/115320-21kthreadcore10:21:101
179940,0migration/112842-21kthreadcore10:01:101
179940,0migration/11230-21unixbench-2d09:11:171
179940,0migration/110930-21kthreadcore08:56:111
179940,0migration/110422-21kthreadcore12:31:101
169940,0watchdog/13780-21tr12:46:111
169940,0watchdog/132324-21fschecks_time10:51:061
169940,0watchdog/12966-21gltestperf09:16:061
169940,0watchdog/121296-21latency12:16:101
169940,0watchdog/119023-21python09:01:141
169940,0watchdog/10-21swapper/111:51:061
169940,0watchdog/10-21swapper/110:16:101
169940,0watchdog/10-21swapper/109:36:101
169940,0watchdog/10-21swapper/107:56:061
169940,0watchdog/10-21swapper/107:51:101
149940,0migration/07291-21kthreadcore11:51:100
149940,0migration/0531-21fschecks_count12:26:060
149940,0migration/030993-21runrttasks12:22:150
149940,0migration/02943-21kthreadcore10:31:090
149940,0migration/024951-21kthreadcore10:06:100
149940,0migration/024278-21kthreadcore07:36:090
121869943,0cyclictest3524-21snmpd11:41:562
121869943,0cyclictest3524-21snmpd10:20:542
121869943,0cyclictest3524-21snmpd09:08:232
121869943,0cyclictest3524-21snmpd09:02:232
121869943,0cyclictest3524-21snmpd08:39:082
121869943,0cyclictest3524-21snmpd08:39:082
121869943,0cyclictest3524-21snmpd08:08:382
121869943,0cyclictest3524-21snmpd08:00:532
121869943,0cyclictest3524-21snmpd07:47:082
121869940,0cyclictest0-21swapper/208:18:312
121859944,0cyclictest0-21swapper/109:46:021
121859943,0cyclictest8842-21awk10:56:071
121859943,0cyclictest3524-21snmpd11:34:561
121859943,0cyclictest3524-21snmpd10:49:251
121859943,0cyclictest3524-21snmpd09:53:091
121859943,0cyclictest3524-21snmpd09:25:231
121859943,0cyclictest30848-21awk10:31:071
121859943,0cyclictest27450-21sadc13:00:521
121859943,0cyclictest25005-21awk12:21:071
121859943,0cyclictest24551-21awk08:46:071
121859943,0cyclictest23204-21awk12:01:071
121859943,0cyclictest2168-21awk11:11:081
121859943,0cyclictest20663-21awk07:36:061
121859943,0cyclictest15533-21awk10:41:061
121859943,0cyclictest13662-21awk08:16:071
121859943,0cyclictest13431-21awk07:31:051
121849944,0cyclictest0-21swapper/009:37:160
121849943,0cyclictest9678-21awk09:41:070
121849943,0cyclictest674-21sadc11:10:510
121849943,0cyclictest3571-21lldpd12:10:260
121849943,0cyclictest3571-21lldpd10:54:250
121849943,0cyclictest3571-21lldpd09:55:550
121849943,0cyclictest3571-21lldpd08:35:540
121849943,0cyclictest3571-21lldpd08:35:540
121849943,0cyclictest3524-21snmpd12:39:410
121849943,0cyclictest29094-21awk10:11:060
121849943,0cyclictest26925-21awk12:41:080
121849943,0cyclictest24669-21awk08:46:080
121849943,0cyclictest13768-21awk10:21:070
329930,0watchdog/30-21swapper/309:12:303
329930,0watchdog/30-21swapper/308:36:103
169930,0watchdog/130610-21kthreadcore12:41:111
169930,0watchdog/123535-21diskmemload12:51:111
169930,0watchdog/10-21swapper/111:26:061
169930,0watchdog/10-21swapper/111:15:541
169930,0watchdog/10-21swapper/111:01:101
169930,0watchdog/10-21swapper/108:12:381
149930,0migration/07724-21runrttasks10:55:550
121869932,0cyclictest3571-21lldpd07:30:512
121869931,0cyclictest0-21swapper/207:36:072
121859932,0cyclictest30897-21entropy08:06:041
121859932,0cyclictest25961-21sensors08:21:131
121859932,0cyclictest17716-21awk09:26:081
121859932,0cyclictest17365-21awk08:41:061
121859932,0cyclictest15281-21sensors08:36:121
121859932,0cyclictest15281-21sensors08:36:121
121859930,0cyclictest25132-21grep08:01:091
121849933,0cyclictest3571-21lldpd09:47:250
121849932,0cyclictest3524-21snmpd10:19:390
121849932,0cyclictest27537-21cut07:41:050
121849932,0cyclictest20069-21latency_hist11:40:510
121849931,0cyclictest28562-21date11:45:510
121849930,0cyclictest31351-21perl08:06:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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