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2026-06-10 - 01:51
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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 Wed Jun 10, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2691223826,0sleep20-21swapper/219:24:232
2600623627,0sleep30-21swapper/319:20:123
2665823525,0sleep10-21swapper/119:21:261
2667723228,0sleep00-21swapper/019:21:410
169970,0watchdog/10-21swapper/121:38:571
339960,0migration/332490-21fschecks_time23:50:043
339960,0migration/320352-21taskset23:24:433
339960,0migration/317823-21sh00:17:153
339960,0migration/316964-21munin-node00:00:033
339960,0migration/314580-21sh00:54:453
329960,0watchdog/33296-21grep00:45:103
329960,0watchdog/320324-21memory23:40:103
29815060,0irq/29-eth0-tx-23677-21munin-node19:45:150
29805060,0irq/28-eth0-rx-7732-21sh22:55:203
29805060,0irq/28-eth0-rx-6956-21iostat_ios23:35:083
29805060,0irq/28-eth0-rx-32766-21df21:40:033
29805060,0irq/28-eth0-rx-29688-21ntp_states21:35:103
29805060,0irq/28-eth0-rx-29622-21cut21:55:083
29805060,0irq/28-eth0-rx-27384-21tr22:50:083
29805060,0irq/28-eth0-rx-17740-21kthreadcore20:00:083
270199960,0cyclictest0-21swapper/220:25:042
27160,0ktimersoftd/20-21swapper/223:55:412
27160,0ktimersoftd/20-21swapper/221:40:062
149960,0migration/09052-21sh00:12:090
149960,0migration/0342-21kthreadcore19:25:070
149960,0migration/020477-21ntp_offset23:40:110
149960,0migration/012245-21sh00:34:360
8305050,0irq/26-0000:00:22236-21date22:29:512
8305050,0irq/26-0000:00:22236-21date22:29:512
339950,0migration/38744-21taskset19:30:503
339950,0migration/36118-21gltestperf22:20:053
339950,0migration/35306-21unixbench-2d22:35:173
339950,0migration/33595-21cpuspeed_turbos23:15:023
339950,0migration/332043-21diskmemload00:05:233
339950,0migration/327935-21kthreadcore22:30:083
339950,0migration/327552-21munin-node19:25:013
339950,0migration/325744-21kthreadcore20:30:053
339950,0migration/325704-21kthreadcore00:40:093
339950,0migration/323254-21kthreadcore21:50:083
339950,0migration/323228-21taskset19:42:233
339950,0migration/32109-21taskset00:25:393
339950,0migration/319863-21taskset00:36:483
339950,0migration/316848-21kthreadcore21:30:113
339950,0migration/316593-21kthreadcore22:05:083
339950,0migration/311745-21munin-node19:55:103
339950,0migration/311684-21kthreadcore21:05:083
329950,0watchdog/36736-21grep20:15:093
329950,0watchdog/34852-21sed19:50:173
329950,0watchdog/331564-21cat23:30:103
329950,0watchdog/329567-21cut23:10:103
329950,0watchdog/321413-21smartctl20:50:053
329950,0watchdog/31812-21munin-node20:55:173
329950,0watchdog/317944-21ls21:10:053
329950,0watchdog/313484-21kthreadcore19:35:093
329950,0watchdog/30-21swapper/322:15:053
329950,0watchdog/30-21swapper/300:30:103
29815050,0irq/29-eth0-tx-24411-21fschecks_time21:35:042
29815050,0irq/29-eth0-tx-23923-21munin-node20:30:040
29815050,0irq/29-eth0-tx-18304-21munin-node23:05:062
29815050,0irq/29-eth0-tx-12450-21yum23:35:192
29815050,0irq/29-eth0-tx-0-21swapper/222:40:112
29815050,0irq/29-eth0-tx-0-21swapper/221:31:272
29815050,0irq/29-eth0-tx-0-21swapper/221:27:582
29815050,0irq/29-eth0-tx-0-21swapper/020:44:150
29815050,0irq/29-eth0-tx-0-21swapper/019:40:020
29805050,0irq/28-eth0-rx-18329-21kthreadcore20:45:093
29805050,0irq/28-eth0-rx-16394-40yum-updatesd-he20:23:493
29805050,0irq/28-eth0-rx-0-21swapper/323:55:003
29805050,0irq/28-eth0-rx-0-21swapper/323:00:133
29805050,0irq/28-eth0-rx-0-21swapper/322:40:043
29805050,0irq/28-eth0-rx-0-21swapper/322:27:393
29805050,0irq/28-eth0-rx-0-21swapper/322:27:393
29805050,0irq/28-eth0-rx-0-21swapper/322:04:223
29805050,0irq/28-eth0-rx-0-21swapper/321:45:293
29805050,0irq/28-eth0-rx-0-21swapper/321:25:083
29805050,0irq/28-eth0-rx-0-21swapper/300:20:133
29805050,0irq/28-eth0-rx-0-21swapper/300:12:203
270199955,0cyclictest28386-21kthreadcore00:05:092
270199955,0cyclictest22393-21ssh22:29:562
270199955,0cyclictest0-21swapper/222:06:452
270199954,0cyclictest10386-21ps21:45:072
270199950,0cyclictest0-21swapper/200:40:192
270199950,0cyclictest0-21swapper/200:36:032
270189955,0cyclictest5977-21diskmemload23:10:141
270189955,0cyclictest11898-21munin-node20:40:091
270189955,0cyclictest0-21swapper/123:18:171
270189955,0cyclictest0-21swapper/120:10:021
270189950,0cyclictest0-21swapper/123:20:571
270189950,0cyclictest0-21swapper/122:36:581
270189950,0cyclictest0-21swapper/122:24:031
270189950,0cyclictest0-21swapper/121:52:591
270189950,0cyclictest0-21swapper/121:26:391
270189950,0cyclictest0-21swapper/119:35:111
270189950,0cyclictest0-21swapper/100:46:341
270179955,0cyclictest0-21swapper/000:02:500
270179952,0cyclictest19293-21kworker/0:123:05:080
259950,0migration/27021-21kthreadcore22:20:092
259950,0migration/24840-21ntp_offset22:35:112
259950,0migration/24542-21kthreadcore22:00:082
259950,0migration/232744-21kthreadcore22:15:082
259950,0migration/232177-21kthreadcore20:55:082
259950,0migration/229596-21unixbench-2d23:45:162
259950,0migration/227723-21munin-node21:55:072
259950,0migration/227611-21sh22:12:242
259950,0migration/227380-21munin-node23:25:162
259950,0migration/225896-21sh00:20:442
249950,0watchdog/20-21swapper/223:42:462
179950,0migration/18355-21sh21:43:541
179950,0migration/16704-21kthreadcore00:30:101
179950,0migration/13475-21munin-node21:00:041
179950,0migration/13408-21kthreadcore00:10:101
179950,0migration/128333-21fschecks_time20:55:041
179950,0migration/127038-21kthreadcore22:30:081
179950,0migration/126375-21latency_hist21:54:511
179950,0migration/125691-21kthreadcore20:30:051
179950,0migration/118774-21kthreadcore20:25:071
179950,0migration/117459-21taskset21:49:391
179950,0migration/115832-21gltestperf21:30:071
169950,0watchdog/13122-21ssh00:28:221
169950,0watchdog/125282-21tr20:50:091
169950,0watchdog/119079-21sh00:20:061
169950,0watchdog/116656-21aten2.4-expect00:00:021
149950,0migration/09525-21taskset20:19:590
149950,0migration/0901-21kthreadcore20:55:080
149950,0migration/08867-21latency_hist21:44:510
149950,0migration/06836-21kthreadcore23:15:080
149950,0migration/06107-21latency_hist00:49:510
149950,0migration/04800-21kthreadcore19:30:070
149950,0migration/03604-21kthreadcore20:35:080
149950,0migration/032764-21cpuspeed_turbos21:40:020
149950,0migration/032498-21missed_timers21:55:100
149950,0migration/029977-21sh23:45:590
149950,0migration/027899-21kthreadcore22:50:080
149950,0migration/027615-21kthreadcore21:35:080
149950,0migration/026859-21kthreadcore21:15:080
149950,0migration/025876-21kthreadcore20:50:090
149950,0migration/023954-21irqrtprio22:30:060
149950,0migration/023439-21taskset20:26:590
149950,0migration/022642-21kthreadcore00:20:130
149950,0migration/021767-21kthreadcore21:10:090
149950,0migration/021635-21kthreadcore21:50:080
149950,0migration/02040-21kthreadcore22:15:080
149950,0migration/019058-21latency20:45:090
149950,0migration/016709-21fschecks_time22:45:040
149950,0migration/014369-21kthreadcore19:35:090
149950,0migration/014219-21sh22:40:400
149950,0migration/014131-21cpuspeed_turbos22:25:030
149950,0migration/014131-21cpuspeed_turbos22:25:030
149950,0migration/014118-21taskset21:28:510
149950,0migration/013359-21taskset00:51:230
149950,0migration/013032-21kthreadcore23:00:090
149950,0migration/012915-21fschecks_time23:20:050
149950,0migration/012599-21kthreadcore23:55:090
149950,0migration/010993-21sh22:04:200
339940,0migration/38837-21kthreadcore20:40:073
339940,0migration/321974-21kthreadcore20:25:083
329940,0watchdog/33603-21kthreadcore21:20:093
329940,0watchdog/328453-21munin-node20:10:053
329940,0watchdog/30-21swapper/322:10:093
329940,0watchdog/30-21swapper/320:35:013
29815040,0irq/29-eth0-tx-0-21swapper/223:52:322
29815040,0irq/29-eth0-tx-0-21swapper/223:29:552
29815040,0irq/29-eth0-tx-0-21swapper/223:09:512
29815040,0irq/29-eth0-tx-0-21swapper/222:54:572
29815040,0irq/29-eth0-tx-0-21swapper/222:50:022
29815040,0irq/29-eth0-tx-0-21swapper/200:24:552
29815040,0irq/29-eth0-tx-0-21swapper/200:10:002
29805040,0irq/28-eth0-rx-26816-21cut23:45:083
29805040,0irq/28-eth0-rx-0-21swapper/323:25:083
29805040,0irq/28-eth0-rx-0-21swapper/323:05:263
29805040,0irq/28-eth0-rx-0-21swapper/322:46:023
270199943,0cyclictest3571-21lldpd21:50:012
270199943,0cyclictest3571-21lldpd20:44:012
270199943,0cyclictest3571-21lldpd20:01:302
270199943,0cyclictest3571-21lldpd19:56:302
270199943,0cyclictest3571-21lldpd19:41:302
270199943,0cyclictest3571-21lldpd19:36:302
270199943,0cyclictest3571-21lldpd19:32:002
270199943,0cyclictest3571-21lldpd19:25:002
270199943,0cyclictest3524-21snmpd19:45:442
270199943,0cyclictest3281-21awk20:15:062
270199943,0cyclictest32371-21awk21:20:062
270199943,0cyclictest31967-21awk19:50:072
270199943,0cyclictest30993-21awk00:45:072
270199943,0cyclictest13088-21awk23:20:062
270199943,0cyclictest11474-21awk00:15:072
270199943,0cyclictest10799-21awk23:00:062
270189943,0cyclictest9099-21sadc19:34:501
270189943,0cyclictest6931-21awk23:35:081
270189943,0cyclictest3571-21lldpd23:51:331
270189943,0cyclictest3571-21lldpd22:58:331
270189943,0cyclictest3571-21lldpd22:45:021
270189943,0cyclictest3524-21snmpd21:18:001
270189943,0cyclictest3524-21snmpd21:10:001
270189943,0cyclictest3524-21snmpd20:05:291
270189943,0cyclictest3524-21snmpd20:00:291
270189943,0cyclictest15725-21sadc22:44:501
270189943,0cyclictest10878-21awk21:05:061
270179944,0cyclictest11987-21kworker/0:221:07:070
270179944,0cyclictest11987-21kworker/0:220:00:070
270179944,0cyclictest11987-21kworker/0:219:58:350
270179944,0cyclictest0-21swapper/000:06:190
270179943,0cyclictest3571-21lldpd20:16:300
270179943,0cyclictest3571-21lldpd20:11:000
270179943,0cyclictest3524-21snmpd22:06:150
270179943,0cyclictest3250-21irqbalance23:37:570
270179943,0cyclictest3250-21irqbalance23:12:570
270179943,0cyclictest2447-21runrttasks20:59:580
270179943,0cyclictest21790-21awk23:25:060
270179943,0cyclictest15950-21awk21:30:090
270179943,0cyclictest13543-21sadc22:24:510
270179941,0cyclictest0-21swapper/020:05:010
259940,0migration/26762-21kthreadcore23:15:082
259940,0migration/229778-21kthreadcore20:10:072
259940,0migration/225947-21kthreadcore20:30:052
259940,0migration/224270-21kthreadcore20:05:072
259940,0migration/215914-21latency_hist22:44:502
259940,0migration/211501-21kthreadcore00:50:082
259940,0migration/211382-21kthreadcore20:20:062
249940,0watchdog/20-21swapper/221:10:052
249940,0watchdog/20-21swapper/200:30:102
249940,0watchdog/20-21swapper/200:00:062
179940,0migration/18677-21kthreadcore19:55:071
179940,0migration/15888-21kthreadcore22:00:081
179940,0migration/14652-21kthreadcore21:20:091
179940,0migration/127957-21fschecks_time19:25:021
179940,0migration/126992-21kthreadcore23:45:081
179940,0migration/125521-21fschecks_time22:50:041
179940,0migration/121991-21fschecks_time00:40:051
179940,0migration/121732-21kthreadcore23:05:081
179940,0migration/116607-21runrttasks23:00:561
179940,0migration/116501-21munin-node00:15:131
179940,0migration/115222-21sh23:56:461
179940,0migration/114147-21kthreadcore22:05:071
169940,0watchdog/13202-21sh20:15:051
169940,0watchdog/121340-21ssh23:41:021
169940,0watchdog/116756-21kthreadcore20:45:091
169940,0watchdog/113157-21ssh00:50:501
169940,0watchdog/11047-21ssh00:09:141
169940,0watchdog/10-21swapper/123:30:101
169940,0watchdog/10-21swapper/123:25:181
169940,0watchdog/10-21swapper/122:25:051
169940,0watchdog/10-21swapper/122:25:051
169940,0watchdog/10-21swapper/122:15:051
149940,0migration/05502-21sh22:35:260
149940,0migration/020789-21fschecks_count22:10:050
149940,0migration/018053-21kthreadcore00:35:090
149940,0migration/01223-21kthreadcore19:50:100
8305030,0irq/26-0000:00:0-21swapper/220:34:572
29805030,0irq/28-eth0-rx-0-21swapper/321:15:223
29805030,0irq/28-eth0-rx-0-21swapper/320:59:523
29805030,0irq/28-eth0-rx-0-21swapper/320:05:013
29805030,0irq/28-eth0-rx-0-21swapper/319:45:043
270199932,0cyclictest3571-21lldpd21:00:012
270199932,0cyclictest25187-21awk21:15:062
270199932,0cyclictest21634-21awk20:50:072
270199932,0cyclictest13504-21sort20:45:032
270199932,0cyclictest10799-21awk21:05:062
270189932,0cyclictest3571-21lldpd20:20:001
270189932,0cyclictest24859-21awk19:45:061
270189932,0cyclictest22536-21sed19:40:091
270189932,0cyclictest21248-21awk22:10:071
270179933,0cyclictest485-21kworker/0:100:40:000
270179933,0cyclictest485-21kworker/0:100:25:040
270179933,0cyclictest485-21kworker/0:100:15:000
270179933,0cyclictest27988-21kworker/0:023:50:040
270179933,0cyclictest27988-21kworker/0:023:29:540
270179933,0cyclictest24180-21kworker/0:022:54:560
270179933,0cyclictest11987-21kworker/0:221:19:570
179930,0migration/13650-21kthreadcore20:35:081
169930,0watchdog/10-21swapper/119:50:171
169930,0watchdog/10-21swapper/100:38:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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