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2026-04-22 - 06:08
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Wed Apr 22, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
751424535,0sleep30-21swapper/319:18:163
769723627,0sleep10-21swapper/119:20:261
743823622,0sleep00-21swapper/019:17:250
750723324,0sleep20-21swapper/219:18:112
78069960,0cyclictest0-21swapper/221:43:102
78029960,0cyclictest0-21swapper/121:41:141
339960,0migration/39184-21sh00:38:423
339960,0migration/33867-21sh21:29:263
339960,0migration/3348-21sh00:33:443
339960,0migration/33173-21idleruntime-cro23:40:493
339960,0migration/329812-21sh21:43:163
339960,0migration/327465-21munin-node23:51:173
339960,0migration/326040-21runrttasks23:33:283
339960,0migration/321143-21sh21:38:213
339960,0migration/318039-21sh23:30:183
29805060,0irq/28-eth0-rx-8854-21perl19:21:013
29805060,0irq/28-eth0-rx-22198-21grep00:26:073
29805060,0irq/28-eth0-rx-15944-21fschecks_time19:26:023
29805060,0irq/28-eth0-rx-10570-21ssh22:27:593
149960,0migration/07488-21aten_r1power_fr21:51:000
149960,0migration/07488-21aten_r1power_fr21:51:000
149960,0migration/031525-21sendmail_mailst00:31:110
149960,0migration/010490-21sh23:42:070
8305050,0irq/26-0000:00:8273-21crond20:50:482
8305050,0irq/26-0000:00:8171-21wc20:05:482
78069950,0cyclictest9874-21munin-node23:26:092
78069950,0cyclictest0-21swapper/223:08:472
78069950,0cyclictest0-21swapper/221:59:342
78069950,0cyclictest0-21swapper/200:34:052
78029950,0cyclictest0-21swapper/100:11:191
78019950,0cyclictest0-21swapper/022:44:450
78019950,0cyclictest0-21swapper/000:09:160
339950,0migration/37303-21latency_hist21:50:493
339950,0migration/37303-21latency_hist21:50:493
339950,0migration/36701-21sh23:04:043
339950,0migration/35709-21munin-node19:41:053
339950,0migration/331098-21runrttasks00:15:133
339950,0migration/328402-21taskset19:31:073
339950,0migration/327794-21taskset21:25:473
339950,0migration/32598-21kthreadcore21:06:073
339950,0migration/323649-21kthreadcore22:36:073
339950,0migration/323539-21fschecks_time22:56:033
339950,0migration/318792-21sh00:45:493
339950,0migration/316942-21fschecks_time23:11:023
339950,0migration/316375-21fschecks_time20:56:023
339950,0migration/315337-21kthreadcore23:46:073
339950,0migration/313286-21munin-node19:46:063
329950,0watchdog/37181-21memory23:21:083
329950,0watchdog/332191-21ssh22:03:363
329950,0watchdog/325225-21taskset22:17:003
329950,0watchdog/315233-21kthreadcore20:31:073
329950,0watchdog/30-21swapper/323:06:083
29815050,0irq/29-eth0-tx-3521-21ssh22:41:322
29815050,0irq/29-eth0-tx-32508-21iostat23:01:032
29815050,0irq/29-eth0-tx-19534-21ssh21:21:020
29815050,0irq/29-eth0-tx-18912-21munin-node19:51:020
29815050,0irq/29-eth0-tx-16808-21unixbench_multi00:41:142
29815050,0irq/29-eth0-tx-12201-21munin-node21:16:090
29815050,0irq/29-eth0-tx-0-21swapper/222:16:082
29815050,0irq/29-eth0-tx-0-21swapper/200:36:072
29815050,0irq/29-eth0-tx-0-21swapper/021:06:140
29815050,0irq/29-eth0-tx-0-21swapper/020:35:530
29805050,0irq/28-eth0-rx-8764-21fschecks_time00:21:033
29805050,0irq/28-eth0-rx-832-21ssh22:05:583
29805050,0irq/28-eth0-rx-31427-21kthreadcore20:21:063
29805050,0irq/28-eth0-rx-31210-21cut21:46:023
29805050,0irq/28-eth0-rx-29632-21kthreadcore20:41:063
29805050,0irq/28-eth0-rx-24837-21kthreadcore20:36:083
29805050,0irq/28-eth0-rx-23045-21tr19:51:063
29805050,0irq/28-eth0-rx-21018-21ssh22:51:563
29805050,0irq/28-eth0-rx-14670-21df00:06:003
29805050,0irq/28-eth0-rx-13187-21kthreadcore22:11:073
29805050,0irq/28-eth0-rx-0-21swapper/323:56:063
29805050,0irq/28-eth0-rx-0-21swapper/323:15:503
29805050,0irq/28-eth0-rx-0-21swapper/322:46:053
29805050,0irq/28-eth0-rx-0-21swapper/322:32:523
29805050,0irq/28-eth0-rx-0-21swapper/321:31:013
29805050,0irq/28-eth0-rx-0-21swapper/300:16:083
249950,0watchdog/225681-21fschecks_time23:16:042
249950,0watchdog/21171-21kthreadcore21:06:072
179950,0migration/19157-21fschecks_time20:06:021
179950,0migration/15818-21munin-node20:26:041
179950,0migration/14836-21latency_hist21:10:491
179950,0migration/128169-21irqcore22:21:051
179950,0migration/126863-21fschecks_count20:41:021
179950,0migration/122056-21crond21:40:491
179950,0migration/121374-21sh22:52:551
179950,0migration/118940-21aten2.4-expect19:50:591
179950,0migration/116859-21fschecks_time21:56:031
179950,0migration/116371-21gltestperf20:11:031
179950,0migration/11015-21sh00:35:251
169950,0watchdog/127226-21if_eth119:56:031
149950,0migration/09887-21kthreadcore22:46:070
149950,0migration/08920-21kthreadcore00:01:060
149950,0migration/08886-21taskset00:37:540
149950,0migration/08131-21fschecks_count23:06:030
149950,0migration/07984-21taskset20:05:260
149950,0migration/07953-21sh22:06:550
149950,0migration/07694-21timerandwakeup23:21:140
149950,0migration/07366-21kthreadcore21:31:070
149950,0migration/0593-21taskset20:00:290
149950,0migration/05763-21sh21:47:090
149950,0migration/05697-21fschecks_time21:11:020
149950,0migration/05631-21munin-node00:16:130
149950,0migration/031412-21kthreadcore22:21:070
149950,0migration/03062-21latency_hist22:25:480
149950,0migration/029871-21kthreadcore23:16:080
149950,0migration/029845-21taskset20:20:510
149950,0migration/029796-21sh22:57:260
149950,0migration/027988-21kthreadcore20:41:050
149950,0migration/027041-21latency_hist23:35:490
149950,0migration/026585-21kthreadcore20:16:080
149950,0migration/026052-21kthreadcore19:31:060
149950,0migration/025371-21kthreadcore21:41:060
149950,0migration/022761-21pmu-power00:26:100
149950,0migration/022021-21kthreadcore00:46:090
149950,0migration/021086-21fschecks_count22:36:030
149950,0migration/020390-21sh21:36:310
149950,0migration/020364-21sendmail_mailqu22:51:110
149950,0migration/02026-21runrttasks19:36:050
149950,0migration/018187-21kthreadcore19:26:060
149950,0migration/017324-21sh22:14:000
149950,0migration/015220-21sh00:22:480
149950,0migration/013928-21kthreadcore20:31:070
149950,0migration/013881-21kthreadcore22:31:070
149950,0migration/012326-21kthreadcore00:41:060
78069944,0cyclictest0-21swapper/222:50:492
78069943,0cyclictest3524-21snmpd19:50:052
78069943,0cyclictest3524-21snmpd19:36:352
78069943,0cyclictest3250-21irqbalance23:41:052
78069943,0cyclictest3250-21irqbalance23:36:052
78069943,0cyclictest3250-21irqbalance21:20:552
78069943,0cyclictest3250-21irqbalance19:31:042
78069943,0cyclictest3250-21irqbalance19:22:542
78069943,0cyclictest3250-21irqbalance00:26:052
78069943,0cyclictest27287-21awk19:56:032
78069943,0cyclictest23885-21awk22:56:052
78069943,0cyclictest2251-21awk23:21:042
78069943,0cyclictest20039-21awk19:51:042
78029943,0cyclictest9616-21awk20:51:041
78029943,0cyclictest9024-21awk00:21:051
78029943,0cyclictest3571-21lldpd23:43:261
78029943,0cyclictest3571-21lldpd22:59:551
78029943,0cyclictest3524-21snmpd23:21:091
78029943,0cyclictest3524-21snmpd21:04:371
78029943,0cyclictest3524-21snmpd20:39:511
78029943,0cyclictest32341-21awk23:01:021
78029943,0cyclictest17737-21awk00:26:041
78029940,0cyclictest0-21swapper/122:11:581
78019944,0cyclictest0-21swapper/021:01:100
78019943,0cyclictest9344-21awk20:06:040
78019943,0cyclictest3524-21snmpd21:29:520
78019943,0cyclictest3250-21irqbalance22:00:550
78019943,0cyclictest3250-21irqbalance21:55:550
78019943,0cyclictest3250-21irqbalance20:26:350
78019943,0cyclictest3250-21irqbalance00:11:250
78019943,0cyclictest32356-21awk23:01:020
78019943,0cyclictest23316-21kworker/0:223:58:020
339940,0migration/37964-21kthreadcore21:11:063
339940,0migration/33970-21taskset22:42:443
339940,0migration/312162-21latency_hist21:15:493
339940,0migration/311917-21proc_pri00:01:093
339940,0migration/310247-21kthreadcore20:26:073
329940,0watchdog/3221042sleep320:12:153
329940,0watchdog/30-21swapper/322:21:003
329940,0watchdog/30-21swapper/320:46:033
329940,0watchdog/30-21swapper/319:56:033
29815040,0irq/29-eth0-tx-7959-21munin-node00:21:032
29815040,0irq/29-eth0-tx-24665-21munin-node22:01:022
29815040,0irq/29-eth0-tx-20513-21munin-node22:36:062
29815040,0irq/29-eth0-tx-15423-21ssh00:06:032
29815040,0irq/29-eth0-tx-0-21swapper/223:50:542
29815040,0irq/29-eth0-tx-0-21swapper/223:45:552
29815040,0irq/29-eth0-tx-0-21swapper/223:31:152
29815040,0irq/29-eth0-tx-0-21swapper/222:21:252
29815040,0irq/29-eth0-tx-0-21swapper/222:10:592
29815040,0irq/29-eth0-tx-0-21swapper/222:05:512
29815040,0irq/29-eth0-tx-0-21swapper/221:50:542
29815040,0irq/29-eth0-tx-0-21swapper/221:50:542
29815040,0irq/29-eth0-tx-0-21swapper/221:45:502
29815040,0irq/29-eth0-tx-0-21swapper/221:30:492
29815040,0irq/29-eth0-tx-0-21swapper/200:15:512
29815040,0irq/29-eth0-tx-0-21swapper/200:12:592
29815040,0irq/29-eth0-tx-0-21swapper/200:00:152
29815040,0irq/29-eth0-tx-0-21swapper/020:56:010
29815040,0irq/29-eth0-tx-0-21swapper/019:41:080
29805040,0irq/28-eth0-rx-1757-21kthreadcore19:36:053
29805040,0irq/28-eth0-rx-0-21swapper/323:41:103
29805040,0irq/28-eth0-rx-0-21swapper/321:55:493
29805040,0irq/28-eth0-rx-0-21swapper/320:51:013
29805040,0irq/28-eth0-rx-0-21swapper/300:40:543
259940,0migration/29601-21munin-node22:26:132
259940,0migration/29601-21kthreadcore20:26:072
259940,0migration/22966-21kthreadcore20:21:072
259940,0migration/228440-21df_abs21:26:032
259940,0migration/227350-21kthreadcore20:16:082
259940,0migration/217158-21fschecks_time23:11:022
259940,0migration/215588-21kthreadcore21:36:062
259940,0migration/215327-21aten_r1power_fr19:26:002
259940,0migration/215052-21kthreadcore20:31:072
259940,0migration/214758-21kthreadcore21:16:062
249940,0watchdog/28956-21kthreadcore22:46:082
249940,0watchdog/227427-21if_err_eth020:41:032
249940,0watchdog/220548-21kthreadcore00:46:082
249940,0watchdog/211825-21ssh22:30:522
249940,0watchdog/211781-21munin-node00:01:082
249940,0watchdog/20-21swapper/220:36:072
179940,0migration/14341-21taskset20:24:081
179940,0migration/13305-21munin-node22:26:011
179940,0migration/132087-21idleruntime21:46:051
179940,0migration/127317-21taskset22:36:361
179940,0migration/125821-21runrttasks00:47:051
179940,0migration/124529-21latency_hist22:00:491
179940,0migration/124459-21kthreadcore23:51:081
179940,0migration/124039-21kthreadcore22:16:091
179940,0migration/121891-21sendmail_mailst20:56:101
179940,0migration/117937-21kthreadcore00:06:061
179940,0migration/115955-21kthreadcore19:46:071
179940,0migration/115557-21kthreadcore21:16:071
179940,0migration/115223-21runrttasks19:25:531
179940,0migration/114705-21sh21:52:531
179940,0migration/114705-21sh21:52:531
179940,0migration/112935-21munin-node20:31:031
179940,0migration/112643-21taskset00:01:541
179940,0migration/111811-21kthreadcore19:21:051
169940,0watchdog/19120-21ssh00:38:321
169940,0watchdog/18176-21chrt22:07:361
169940,0watchdog/157512sleep121:31:031
169940,0watchdog/129702-21kthreadcore21:26:071
169940,0watchdog/128393-21netstat19:31:071
169940,0watchdog/125682-21fschecks_time23:16:041
169940,0watchdog/124637-21ssh23:15:441
169940,0watchdog/12078-21fschecks_time20:46:031
169940,0watchdog/119177-21diskmemload23:36:481
169940,0watchdog/119177-21diskmemload00:00:281
169940,0watchdog/116912-21kthreadcore23:46:081
169940,0watchdog/1113562sleep119:44:111
169940,0watchdog/10-21swapper/123:26:081
169940,0watchdog/10-21swapper/100:16:081
149940,0migration/021765-21kthreadcore22:16:080
149940,0migration/019037-21fschecks_count23:31:030
149940,0migration/016726-21irqcore20:11:050
149940,0migration/016322-21aten_r1power_en23:11:000
78069933,0cyclictest3571-21lldpd21:00:532
78069932,0cyclictest9640-21awk20:51:042
78069932,0cyclictest5231-21tr21:11:012
78069930,0cyclictest16308-21tune2fs20:56:012
78029933,0cyclictest0-21swapper/121:21:221
78029932,0cyclictest3571-21lldpd22:45:551
78029932,0cyclictest30785-21awk19:36:031
78029932,0cyclictest29918-21tune2fs22:41:021
78029932,0cyclictest12982-21awk22:31:051
78019933,0cyclictest3737-21kworker/0:120:50:560
78019933,0cyclictest3737-21kworker/0:120:45:520
78019933,0cyclictest28655-21kworker/0:019:45:510
78019933,0cyclictest23316-21kworker/0:223:50:500
78019933,0cyclictest23316-21kworker/0:223:45:540
78019933,0cyclictest0-21swapper/023:25:540
329930,0watchdog/30-21swapper/321:01:113
329930,0watchdog/30-21swapper/320:00:593
29815030,0irq/29-eth0-tx-0-21swapper/019:20:530
29805030,0irq/28-eth0-rx-0-21swapper/320:16:053
29805030,0irq/28-eth0-rx-0-21swapper/320:06:003
259930,0migration/22888-21kthreadcore20:01:062
249930,0watchdog/20-21swapper/220:11:072
249930,0watchdog/20-21swapper/219:42:192
179930,0migration/14960-21runrttasks21:10:531
169930,0watchdog/125414-21kthreadcore20:16:071
169930,0watchdog/10-21swapper/123:31:121
169930,0watchdog/10-21swapper/123:06:041
169930,0watchdog/10-21swapper/100:40:521
169920,0watchdog/10-21swapper/120:00:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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