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2026-08-22 - 04:16
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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 all highest latencies:
System rack1slot2.osadl.org (updated Sat Aug 22, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1026323827,0sleep30-21swapper/319:28:563
1030623622,0sleep00-21swapper/019:29:250
1035323526,0sleep20-21swapper/219:29:592
1041123425,0sleep10-21swapper/119:30:381
104939974,0cyclictest2007-21diskstats23:31:021
8305060,0irq/26-0000:00:9023-21ls22:00:492
8305060,0irq/26-0000:00:9023-21ls22:00:492
339960,0migration/324401-21sh23:23:373
339960,0migration/324381-21sh21:50:593
339960,0migration/323515-21munin-node21:31:043
339960,0migration/313726-21sh22:57:533
29815060,0irq/29-eth0-tx-28793-21munin-node20:06:020
29805060,0irq/28-eth0-rx-31849-21cut20:06:053
29805060,0irq/28-eth0-rx-17314-21iostat00:36:043
29805060,0irq/28-eth0-rx-0-21swapper/300:26:013
149960,0migration/032647-21sh23:27:430
149960,0migration/027660-21sh22:29:400
149960,0migration/023463-21fschecks_time00:21:020
149960,0migration/021467-21latency_hist22:45:480
149960,0migration/01112-21sh22:12:230
104939965,0cyclictest4853-21awk23:51:051
104939964,0cyclictest8794-21open_files22:16:081
104939964,0cyclictest452-21fschecks_time23:11:021
104939964,0cyclictest31730-21grep23:26:111
104939964,0cyclictest24549-21date00:40:491
104939964,0cyclictest21819-21aten2.4-expect20:45:591
104939964,0cyclictest21728-21sh20:00:591
104939964,0cyclictest12670-21df_inode23:56:021
104939964,0cyclictest11135-21entropy19:31:011
104939963,0cyclictest564-21tune2fs19:45:591
104939963,0cyclictest3832-21cut21:16:061
104939963,0cyclictest322-21df20:30:591
104939963,0cyclictest31551-21ssh21:52:291
104939963,0cyclictest3109-21ssh00:06:081
104939963,0cyclictest30661-21diskstats22:51:011
104939963,0cyclictest29412-21df_inode20:51:021
104939963,0cyclictest28416-21ls23:46:031
104939963,0cyclictest26736-21cat23:06:061
104939963,0cyclictest23812-21basename00:21:041
104939963,0cyclictest23058-21if_err_eth1.321:31:031
104939963,0cyclictest20420-21port_sshpriv00:16:091
104939963,0cyclictest20397-21kernelversion23:41:061
104939963,0cyclictest18990-21if_eth019:36:041
104939963,0cyclictest18665-21diskstats21:06:001
104939963,0cyclictest18392-21tr20:41:061
104939963,0cyclictest18279-21diskstats22:06:011
104939963,0cyclictest18133-21rm22:21:431
104939963,0cyclictest16610-21sensors_volt23:36:121
104939963,0cyclictest15139-21ssh00:33:481
104939963,0cyclictest14260-21memory23:16:051
104939963,0cyclictest13275-21munin-node19:51:091
104939963,0cyclictest13250-21memory20:36:091
104939963,0cyclictest11294-21diskstats20:16:011
104939963,0cyclictest0-21swapper/100:29:191
104919960,0cyclictest21718-21diskmemload22:18:340
104919960,0cyclictest0-21swapper/021:16:080
339950,0migration/39101-21kthreadcore20:11:063
339950,0migration/37728-21kthreadcore20:56:043
339950,0migration/37180-21taskset21:19:093
339950,0migration/37175-21latency_hist19:50:483
339950,0migration/3701-21taskset00:45:553
339950,0migration/332368-21kthreadcore22:51:053
339950,0migration/330501-21irqrtprio20:51:063
339950,0migration/329846-21kthreadcore23:26:083
339950,0migration/328536-21taskset20:05:353
339950,0migration/327552-21taskset00:01:183
339950,0migration/326003-21fschecks_time20:26:033
339950,0migration/323776-21munin-node22:06:063
339950,0migration/321953-21kthreadcore23:41:073
339950,0migration/32153-21fschecks_count23:31:033
339950,0migration/319554-21irqcore21:06:033
339950,0migration/319166-21ksmtuned21:46:053
339950,0migration/319103-21missed_timers22:41:083
339950,0migration/316581-21sendmail_mailqu23:36:113
339950,0migration/313207-21latency20:36:083
329950,0watchdog/35070-21kthreadcore19:46:033
329950,0watchdog/327233-21cut00:21:083
329950,0watchdog/321739-21ssh00:18:363
29815050,0irq/29-eth0-tx-7372-21munin-node20:36:110
29815050,0irq/29-eth0-tx-5632-21munin-node00:11:102
29815050,0irq/29-eth0-tx-27395-21munin-node23:46:082
29815050,0irq/29-eth0-tx-24161-21pmu-power00:56:112
29815050,0irq/29-eth0-tx-23127-21ssh21:48:112
29815050,0irq/29-eth0-tx-15234-21kthreadcore23:56:062
29815050,0irq/29-eth0-tx-0-21swapper/223:21:322
29815050,0irq/29-eth0-tx-0-21swapper/222:13:252
29815050,0irq/29-eth0-tx-0-21swapper/200:23:502
29815050,0irq/29-eth0-tx-0-21swapper/200:06:012
29815050,0irq/29-eth0-tx-0-21swapper/021:31:010
29815050,0irq/29-eth0-tx-0-21swapper/019:36:120
29805050,0irq/28-eth0-rx-8568-21kthreadcore00:11:063
29805050,0irq/28-eth0-rx-4256-21kthreadcore21:56:073
29805050,0irq/28-eth0-rx-4256-21kthreadcore21:56:073
29805050,0irq/28-eth0-rx-31997-21ssh00:43:083
29805050,0irq/28-eth0-rx-26870-21fschecks_count22:11:023
29805050,0irq/28-eth0-rx-18819-21fschecks_time00:56:033
29805050,0irq/28-eth0-rx-10641-21grep23:16:043
29805050,0irq/28-eth0-rx-10375-21kthreadcore21:21:043
29805050,0irq/28-eth0-rx-0-21swapper/323:56:023
29805050,0irq/28-eth0-rx-0-21swapper/323:07:383
29805050,0irq/28-eth0-rx-0-21swapper/323:01:023
29805050,0irq/28-eth0-rx-0-21swapper/322:32:303
29805050,0irq/28-eth0-rx-0-21swapper/322:27:023
29805050,0irq/28-eth0-rx-0-21swapper/322:22:043
29805050,0irq/28-eth0-rx-0-21swapper/321:41:133
29805050,0irq/28-eth0-rx-0-21swapper/321:39:133
29805050,0irq/28-eth0-rx-0-21swapper/320:21:063
29805050,0irq/28-eth0-rx-0-21swapper/300:52:563
29805050,0irq/28-eth0-rx-0-21swapper/300:31:033
259950,0migration/231547-21unixbench-2d19:41:122
259950,0migration/227154-21kthreadcore21:51:112
259950,0migration/214492-21aten_r1power_po19:55:582
259950,0migration/214326-21sh22:59:382
259950,0migration/212419-21sh22:39:332
249950,0watchdog/27824-21fschecks_count20:36:032
149950,0migration/08404-21fschecks_time00:31:030
149950,0migration/05198-21kernelversion20:11:050
149950,0migration/032309-21cpuspeed_turbos23:11:010
149950,0migration/032034-21kthreadcore22:51:050
149950,0migration/031309-21mdstat21:11:080
149950,0migration/029870-21sh23:06:100
149950,0migration/02839-21kthreadcore19:46:020
149950,0migration/028049-21kthreadcore00:41:070
149950,0migration/02737-21kthreadcore21:36:070
149950,0migration/026969-21kthreadcore20:26:070
149950,0migration/026726-21kthreadcore21:51:100
149950,0migration/025045-21latency_hist19:40:480
149950,0migration/02465-21timerwakeupswit22:31:140
149950,0migration/021833-21idleruntime00:01:020
149950,0migration/018910-21kthreadcore21:46:050
149950,0migration/015603-21kthreadcore21:01:070
149950,0migration/015492-21fschecks_time20:41:020
149950,0migration/013947-21timerwakeupswit21:21:120
149950,0migration/013232-21kthreadcore23:36:070
149950,0migration/012039-21kthreadcore00:51:060
149950,0migration/010953-21aten_r1power_fr20:16:000
104949955,0cyclictest0-21swapper/222:27:562
104949955,0cyclictest0-21swapper/200:41:472
104949954,0cyclictest15444-21ps00:16:052
104949950,0cyclictest0-21swapper/223:13:012
104939953,0cyclictest9501-21cut00:51:011
104939953,0cyclictest9218-21latency_hist22:00:491
104939953,0cyclictest7673-21hostname21:20:581
104939953,0cyclictest6782-21ssh21:40:501
104939953,0cyclictest6442-21rm22:55:531
104939953,0cyclictest5539-21latency_hist00:10:491
104939953,0cyclictest552-21sh21:55:581
104939953,0cyclictest552-21sh21:55:581
104939953,0cyclictest485-21ssh00:45:491
104939953,0cyclictest4517-21ssh22:35:511
104939953,0cyclictest3794-21sed20:55:491
104939953,0cyclictest3625-21taskset20:10:541
104939953,0cyclictest30492-21basename21:36:001
104939953,0cyclictest29046-21cpuspeed_turbos20:06:001
104939953,0cyclictest28197-21latency_hist22:30:491
104939953,0cyclictest26341-21ssh22:10:541
104939953,0cyclictest25356-21cat21:10:491
104939953,0cyclictest25250-21cut20:25:481
104939953,0cyclictest25088-21sh19:40:581
104939953,0cyclictest24685-21sh00:40:591
104939953,0cyclictest21633-21ssh22:45:531
104939953,0cyclictest20678-21cat00:00:491
104939953,0cyclictest19818-21ssh22:25:591
104939953,0cyclictest17988-21ls20:20:481
104939953,0cyclictest17918-21ssh00:55:531
104939953,0cyclictest16739-21cat23:20:481
104939953,0cyclictest15523-21latency_hist21:45:491
104939953,0cyclictest14974-21ssh23:00:531
104939953,0cyclictest14723-21ls21:25:491
104939953,0cyclictest14480-21aten2.4-expect19:55:581
104939953,0cyclictest13233-21sh22:41:011
104939953,0cyclictest11183-21munin-node21:01:011
104919955,0cyclictest3326-21ssh23:50:480
104919950,0cyclictest0-21swapper/023:54:250
104919950,0cyclictest0-21swapper/023:16:350
8305040,0irq/26-0000:00:0-21swapper/319:31:053
339940,0migration/35125-21kthreadcore22:16:053
339940,0migration/329776-21kthreadcore19:41:053
339940,0migration/317461-21taskset20:16:293
339940,0migration/317460-21kthreadcore20:41:063
339940,0migration/310515-21iostat22:01:043
329940,0watchdog/30-21swapper/323:50:043
329940,0watchdog/30-21swapper/320:30:593
29815040,0irq/29-eth0-tx-7096-21kthreadcore23:51:072
29815040,0irq/29-eth0-tx-21718-21diskmemload21:35:562
29815040,0irq/29-eth0-tx-13125-21ssh22:40:582
29815040,0irq/29-eth0-tx-0-21swapper/223:31:182
29815040,0irq/29-eth0-tx-0-21swapper/223:18:272
29815040,0irq/29-eth0-tx-0-21swapper/222:50:512
29815040,0irq/29-eth0-tx-0-21swapper/222:21:492
29815040,0irq/29-eth0-tx-0-21swapper/222:17:462
29815040,0irq/29-eth0-tx-0-21swapper/222:05:492
29815040,0irq/29-eth0-tx-0-21swapper/221:33:402
29815040,0irq/29-eth0-tx-0-21swapper/200:51:012
29815040,0irq/29-eth0-tx-0-21swapper/200:32:062
29815040,0irq/29-eth0-tx-0-21swapper/200:25:552
29815040,0irq/29-eth0-tx-0-21swapper/021:06:060
29815040,0irq/29-eth0-tx-0-21swapper/019:56:000
29805040,0irq/28-eth0-rx-4739-21runrttasks22:36:023
29805040,0irq/28-eth0-rx-0-21swapper/323:51:153
29805040,0irq/28-eth0-rx-0-21swapper/323:11:063
29805040,0irq/28-eth0-rx-0-21swapper/322:45:543
29805040,0irq/28-eth0-rx-0-21swapper/320:45:593
259940,0migration/23264-21taskset20:52:222
259940,0migration/23195-21kthreadcore00:46:062
259940,0migration/230938-21kthreadcore20:26:082
259940,0migration/228138-21timerandwakeup20:46:132
259940,0migration/226776-21ksmtuned00:01:072
259940,0migration/223962-21munin-node20:21:072
259940,0migration/220722-21kthreadcore23:41:062
259940,0migration/218641-21kthreadcore00:36:052
259940,0migration/216275-21irqcore23:01:042
249940,0watchdog/229652-21grep21:11:072
249940,0watchdog/215421-21kthreadcore23:36:082
149940,0migration/07075-21fschecks_count22:56:020
149940,0migration/06268-21kthreadcore00:46:070
149940,0migration/06046-21sh00:27:170
149940,0migration/0407-21df_abs20:31:000
149940,0migration/026179-21sh23:43:030
149940,0migration/024333-21timerwakeupswit22:06:130
149940,0migration/023697-21sh23:21:350
149940,0migration/016810-21kthreadcore23:56:070
149940,0migration/016344-21kthreadcore00:16:060
104949943,0cyclictest3371-21sadc20:10:482
104949943,0cyclictest3250-21irqbalance23:25:552
104949943,0cyclictest3250-21irqbalance22:45:552
104949943,0cyclictest3250-21irqbalance22:30:552
104949943,0cyclictest3250-21irqbalance21:41:152
104949943,0cyclictest24638-21awk23:06:042
104949943,0cyclictest22603-21awk20:01:022
104949943,0cyclictest19322-21awk21:06:022
104949943,0cyclictest15648-21awk20:41:042
104949943,0cyclictest12000-21awk20:16:042
104949943,0cyclictest11769-21awk19:31:032
104949943,0cyclictest0-21swapper/219:46:012
104949940,0cyclictest9288-21munin-node22:01:012
104919944,0cyclictest0-21swapper/022:04:320
104919943,0cyclictest3524-21snmpd00:36:010
104919943,0cyclictest22651-21awk20:01:030
104919943,0cyclictest1660-21awk21:56:030
104919943,0cyclictest1660-21awk21:56:030
104919940,0cyclictest0-21swapper/020:55:590
329930,0watchdog/30-21swapper/321:11:073
329930,0watchdog/30-21swapper/321:00:513
329930,0watchdog/30-21swapper/319:55:513
329930,0watchdog/30-21swapper/300:05:523
29815030,0irq/29-eth0-tx-0-21swapper/021:26:010
29815030,0irq/29-eth0-tx-0-21swapper/019:31:000
29805030,0irq/28-eth0-rx-0-21swapper/321:25:593
29805030,0irq/28-eth0-rx-0-21swapper/319:36:003
27130,0ktimersoftd/20-21swapper/219:53:292
249930,0watchdog/20-21swapper/221:20:592
149930,0migration/018322-21runrttasks22:22:140
104949932,0cyclictest4963-21awk20:56:022
104949932,0cyclictest32749-21cut20:30:592
104949932,0cyclictest24064-21sensors19:36:112
104949931,0cyclictest0-21swapper/221:16:012
104949930,0cyclictest6503-21grep20:11:052
104919932,0cyclictest3571-21lldpd23:03:450
104919932,0cyclictest30464-21awk00:06:040
104919932,0cyclictest28763-21sadc20:50:480
104919932,0cyclictest28395-21ssh22:46:140
104919932,0cyclictest24505-21grep20:21:130
104919932,0cyclictest18935-21ssh00:56:040
104919931,0cyclictest6781-21cat22:36:070
104919930,0cyclictest7535-21perl21:41:020
104919930,0cyclictest2477-21fschecks_time23:31:030
104919930,0cyclictest0-21swapper/020:51:000
104919930,0cyclictest0-21swapper/019:54:370
104919930,0cyclictest0-21swapper/000:11:010
249920,0watchdog/20-21swapper/221:00:512
104949921,0cyclictest0-21swapper/221:25:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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