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2026-09-03 - 13:20
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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 Thu Sep 03, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271550,0ktimersoftd/21576-21perf19:31:372
865223727,0sleep30-21swapper/319:29:283
855823524,0sleep00-21swapper/019:28:210
876622925,0sleep10-21swapper/119:30:501
8921992423,0cyclictest13285-21turbostat23:01:481
89239999,0cyclictest83050irq/26-0000:00:00:57:152
89239966,0cyclictest83050irq/26-0000:00:23:24:212
89239965,0cyclictest8727-21perl22:02:022
89219960,0cyclictest20327-21diskmemload22:38:401
8305060,0irq/26-0000:00:5579-21munin-run00:31:482
339960,0migration/332487-21sh22:14:353
339960,0migration/327777-21sh00:22:163
339960,0migration/317392-21sh23:57:153
339960,0migration/310011-21sh22:37:533
29815060,0irq/29-eth0-tx-27263-21munin-node20:07:060
29815060,0irq/29-eth0-tx-16889-21cut00:37:072
29815060,0irq/29-eth0-tx-13376-21munin-node21:27:020
29805060,0irq/28-eth0-rx-4031-21vmstat00:27:193
29805060,0irq/28-eth0-rx-23630-21kthreadcore00:02:063
29805060,0irq/28-eth0-rx-17677-21ssh22:25:363
29805060,0irq/28-eth0-rx-0-21swapper/323:37:133
259960,0migration/28182-21sh22:18:022
149960,0migration/031248-21sh23:28:380
149960,0migration/023548-21kthreadcore20:47:030
89239955,0cyclictest83050irq/26-0000:00:21:59:092
89239950,0cyclictest0-21swapper/223:47:302
89239950,0cyclictest0-21swapper/223:12:022
89239950,0cyclictest0-21swapper/222:37:302
89239950,0cyclictest0-21swapper/221:43:062
89219955,0cyclictest0-21swapper/121:34:301
89219955,0cyclictest0-21swapper/101:00:051
89219954,0cyclictest6869-21ps21:42:061
89219950,0cyclictest0-21swapper/123:08:561
89219950,0cyclictest0-21swapper/121:47:161
89219950,0cyclictest0-21swapper/100:45:161
89219950,0cyclictest0-21swapper/100:14:221
89209955,0cyclictest0-21swapper/021:50:280
89209950,0cyclictest0-21swapper/000:31:350
4150,0ktimersoftd/00-21swapper/000:08:530
339950,0migration/39846-21kthreadcore00:32:073
339950,0migration/36429-21sh21:58:253
339950,0migration/35784-21kthreadcore00:12:063
339950,0migration/35615-21aten_r1power_cu19:51:573
339950,0migration/34213-21sh21:39:233
339950,0migration/331881-21kthreadcore20:07:073
339950,0migration/329266-21munin-node00:42:093
339950,0migration/32883-21kthreadcore22:17:053
339950,0migration/327571-21taskset21:33:453
339950,0migration/326918-21hddtemp_smartct23:47:023
339950,0migration/318287-21munin-node23:42:043
339950,0migration/316822-21kthreadcore21:27:053
339950,0migration/31649-21munin-node20:52:123
339950,0migration/315533-21kthreadcore19:57:043
339950,0migration/314288-21kthreadcore00:17:053
339950,0migration/312018-21kthreadcore19:32:053
339950,0migration/312018-21kthreadcore19:32:053
329950,0watchdog/34755-21cut23:32:113
329950,0watchdog/331602-21sed21:16:583
329950,0watchdog/325903-21memory20:02:063
329950,0watchdog/319161-21kthreadcore00:57:073
329950,0watchdog/30-21swapper/320:32:023
29815050,0irq/29-eth0-tx-32628-21munin-node23:32:072
29815050,0irq/29-eth0-tx-30010-21sed22:52:042
29815050,0irq/29-eth0-tx-20578-21munin-node21:32:080
29815050,0irq/29-eth0-tx-2031-21munin-node20:12:030
29815050,0irq/29-eth0-tx-20039-21munin-node20:02:000
29815050,0irq/29-eth0-tx-17731-21ntp_states22:42:072
29815050,0irq/29-eth0-tx-17384-21munin-node23:42:092
29815050,0irq/29-eth0-tx-14852-21ssh00:53:262
29815050,0irq/29-eth0-tx-10416-21ssh23:37:032
29815050,0irq/29-eth0-tx-0-21swapper/223:21:012
29815050,0irq/29-eth0-tx-0-21swapper/221:41:242
29815050,0irq/29-eth0-tx-0-21swapper/200:11:442
29815050,0irq/29-eth0-tx-0-21swapper/021:17:010
29815050,0irq/29-eth0-tx-0-21swapper/021:01:520
29815050,0irq/29-eth0-tx-0-21swapper/020:41:470
29805050,0irq/28-eth0-rx-31494-21basename00:47:003
29805050,0irq/28-eth0-rx-28722-21head00:07:023
29805050,0irq/28-eth0-rx-27936-21basename22:32:073
29805050,0irq/28-eth0-rx-24798-21latency_hist22:11:473
29805050,0irq/28-eth0-rx-20460-21cpuspeed_turbos22:46:593
29805050,0irq/28-eth0-rx-18985-21fschecks_count22:27:003
29805050,0irq/28-eth0-rx-0-21swapper/323:27:053
29805050,0irq/28-eth0-rx-0-21swapper/323:13:073
29805050,0irq/28-eth0-rx-0-21swapper/323:03:373
29805050,0irq/28-eth0-rx-0-21swapper/322:57:053
29805050,0irq/28-eth0-rx-0-21swapper/322:03:313
29805050,0irq/28-eth0-rx-0-21swapper/321:52:053
29805050,0irq/28-eth0-rx-0-21swapper/320:37:083
29805050,0irq/28-eth0-rx-0-21swapper/300:52:073
29805050,0irq/28-eth0-rx-0-21swapper/300:37:023
27150,0ktimersoftd/20-21swapper/222:58:192
259950,0migration/27786-21kthreadcore00:32:062
259950,0migration/232556-21munin-node00:47:042
259950,0migration/230532-21timerandwakeup23:27:122
259950,0migration/226556-21sh20:47:092
259950,0migration/225656-21kthreadcore20:02:062
259950,0migration/214887-21kthreadcore19:32:062
259950,0migration/214887-21kthreadcore19:32:062
259950,0migration/213165-21munin-node20:41:582
259950,0migration/212708-21kthreadcore20:17:062
259950,0migration/210010-21sh23:55:422
249950,0watchdog/216446-21kthreadcore23:02:072
179950,0migration/130099-21sh21:53:241
179950,0migration/12635-21sh22:52:091
179950,0migration/120571-21kthreadcore22:27:041
179950,0migration/116615-21cpuspeed_turbos19:36:591
179950,0migration/116256-21latency_hist19:36:471
179950,0migration/11387-21switchtime20:52:111
169950,0watchdog/124728-21ssh23:44:071
169950,0watchdog/115798-21missed_timers22:22:071
149950,0migration/06945-21kthreadcore20:57:060
149950,0migration/06496-21fschecks_time19:52:000
149950,0migration/05874-21aten_r1power_cu00:32:000
149950,0migration/05757-21timerandwakeup21:57:140
149950,0migration/0407-21kthreadcore21:37:070
149950,0migration/04026-21kthreadcore00:47:080
149950,0migration/032518-21latency_hist23:31:480
149950,0migration/031930-21irqcore23:12:040
149950,0migration/030826-21aten_r1power_fr19:46:580
149950,0migration/030385-21kthreadcore22:32:100
149950,0migration/029310-21kthreadcore23:47:070
149950,0migration/028267-21taskset00:23:390
149950,0migration/027776-21kthreadcore00:42:040
149950,0migration/025493-21rt-features00:02:090
149950,0migration/025268-21irqcore21:12:040
149950,0migration/023119-21switchtime21:07:110
149950,0migration/021728-21kernelversion22:47:040
149950,0migration/021121-21kthreadcore22:07:050
149950,0migration/019300-21kthreadcore20:22:050
149950,0migration/018823-21kthreadcore00:37:080
149950,0migration/017352-21kthreadcore23:02:070
149950,0migration/016867-21kthreadcore19:57:050
149950,0migration/016754-21taskset23:40:500
149950,0migration/014913-21sh23:20:590
149950,0migration/014848-21kthreadcore22:42:050
149950,0migration/010101-21sh22:38:090
89239944,0cyclictest0-21swapper/222:12:072
89239944,0cyclictest0-21swapper/219:47:042
89239943,0cyclictest6686-21awk19:52:022
89239943,0cyclictest3571-21lldpd20:39:352
89239943,0cyclictest3571-21lldpd20:15:332
89239943,0cyclictest3524-21snmpd22:21:512
89239943,0cyclictest3524-21snmpd21:32:362
89239943,0cyclictest3524-21snmpd21:12:352
89239943,0cyclictest32300-21awk21:17:012
89239943,0cyclictest28644-21awk20:52:022
89239943,0cyclictest10709-21awk21:02:032
89219943,0cyclictest9034-21awk22:02:041
89219943,0cyclictest3524-21snmpd23:21:361
89219943,0cyclictest3524-21snmpd00:52:071
89219943,0cyclictest3518-21ps23:52:051
89219943,0cyclictest32587-21awk00:47:041
89219943,0cyclictest32270-21awk21:17:011
89219943,0cyclictest20320-21latency_hist21:31:471
89219943,0cyclictest18964-21sadc00:01:481
89219943,0cyclictest17883-21awk21:07:021
89219943,0cyclictest16672-21awk23:22:031
89219943,0cyclictest15476-21awk00:37:041
89219943,0cyclictest13967-21awk19:57:021
89219943,0cyclictest10452-21awk20:17:041
89209944,0cyclictest0-21swapper/021:42:440
89209943,0cyclictest3571-21lldpd23:59:360
89209943,0cyclictest3571-21lldpd22:06:360
89209943,0cyclictest3571-21lldpd00:55:070
89209943,0cyclictest3263-21awk23:52:040
89209943,0cyclictest28620-21awk20:52:020
89209943,0cyclictest24559-21perf01:01:480
89209943,0cyclictest24194-21awk21:52:030
89209943,0cyclictest23321-21sadc19:41:470
89209943,0cyclictest15375-21kworker/0:219:44:080
8305040,0irq/26-0000:00:0-21swapper/222:46:482
339940,0migration/328390-21kthreadcore19:42:053
339940,0migration/325920-21kthreadcore20:27:093
339940,0migration/324119-21kthreadcore20:47:043
339940,0migration/316317-21fschecks_time23:22:003
339940,0migration/312294-21sh21:42:323
329940,0watchdog/36314-21runrttasks20:13:263
329940,0watchdog/33524-21snmpd21:23:503
329940,0watchdog/30-21swapper/323:17:313
329940,0watchdog/30-21swapper/321:02:103
329940,0watchdog/30-21swapper/320:17:063
29815040,0irq/29-eth0-tx-28259-21ssh00:23:372
29815040,0irq/29-eth0-tx-20491-21grep22:27:042
29815040,0irq/29-eth0-tx-12511-21munin-node00:17:142
29815040,0irq/29-eth0-tx-0-21swapper/223:56:542
29815040,0irq/29-eth0-tx-0-21swapper/223:07:262
29815040,0irq/29-eth0-tx-0-21swapper/222:06:592
29815040,0irq/29-eth0-tx-0-21swapper/221:47:172
29815040,0irq/29-eth0-tx-0-21swapper/200:42:012
29815040,0irq/29-eth0-tx-0-21swapper/200:12:132
29815040,0irq/29-eth0-tx-0-21swapper/200:02:002
29805040,0irq/28-eth0-rx-21267-21kthreadcore20:22:063
29805040,0irq/28-eth0-rx-0-21swapper/323:53:133
29805040,0irq/28-eth0-rx-0-21swapper/323:07:043
29805040,0irq/28-eth0-rx-0-21swapper/322:52:263
29805040,0irq/28-eth0-rx-0-21swapper/322:41:583
29805040,0irq/28-eth0-rx-0-21swapper/321:46:533
29805040,0irq/28-eth0-rx-0-21swapper/319:47:073
259940,0migration/231866-21kthreadcore22:32:102
259940,0migration/22671-21kthreadcore20:32:042
259940,0migration/226546-21kthreadcore21:52:052
259940,0migration/22435-21aten_r1power_po20:57:002
259940,0migration/221409-21kthreadcore20:22:062
259940,0migration/21634-21runrttasks20:10:072
249940,0watchdog/2303952sleep220:27:462
249940,0watchdog/230118-21yum19:42:142
249940,0watchdog/212370-21python21:22:102
249940,0watchdog/20-21swapper/219:59:102
179940,0migration/19312-21fschecks_count23:36:591
179940,0migration/18999-21kthreadcore00:32:061
179940,0migration/18910-21runrttasks22:20:111
179940,0migration/130648-21taskset21:12:581
179940,0migration/127992-21kthreadcore23:47:061
179940,0migration/126929-21kthreadcore23:27:051
179940,0migration/124690-21kthreadcore20:02:051
179940,0migration/124053-21kthreadcore22:47:051
179940,0migration/12183-21kthreadcore21:57:061
179940,0migration/121750-21fschecks_time00:21:591
179940,0migration/120535-21kthreadcore22:07:051
179940,0migration/120012-21fschecks_time00:02:011
179940,0migration/115206-21kthreadcore20:42:041
179940,0migration/114725-21kthreadcore19:32:051
179940,0migration/114267-21fschecks_time23:02:031
179940,0migration/11358-21runrttasks23:32:091
179940,0migration/11345-21missed_timers00:07:071
179940,0migration/11317-21kthreadcore00:27:101
169940,0watchdog/124961-21chrt22:11:511
169940,0watchdog/115860-21python21:02:101
169940,0watchdog/112594-21aten_r1power_fr00:16:591
169940,0watchdog/10-21swapper/120:32:021
149940,0migration/032253-21irqcore20:32:020
149940,0migration/016744-21runrttasks22:22:530
149940,0migration/015130-21ntp_kernel_err19:32:070
149940,0migration/015130-21ntp_kernel_err19:32:070
149940,0migration/012453-21switchtime21:22:130
149940,0migration/010652-21irqcore20:17:040
89239932,0cyclictest3524-21snmpd21:27:052
89239932,0cyclictest3524-21snmpd21:09:352
89239932,0cyclictest23388-21cat19:41:472
89219933,0cyclictest0-21swapper/120:08:061
89219932,0cyclictest3524-21snmpd22:31:511
89219932,0cyclictest3524-21snmpd21:00:351
89219932,0cyclictest3524-21snmpd19:55:221
89219932,0cyclictest31926-21awk19:47:031
89219932,0cyclictest3190-21awk20:12:031
89219932,0cyclictest17619-21awk20:22:021
89219932,0cyclictest0-21swapper/123:12:051
89209933,0cyclictest3571-21lldpd22:15:360
89209933,0cyclictest10319-21kworker/0:120:36:530
89209933,0cyclictest10319-21kworker/0:120:26:500
89209932,0cyclictest3524-21snmpd23:11:060
89209932,0cyclictest3524-21snmpd23:00:210
89209932,0cyclictest3524-21snmpd00:12:070
89209932,0cyclictest17326-21grep23:22:040
89209930,0cyclictest29951-21iostat_ios22:52:030
89209930,0cyclictest21873-21kthreadcore23:42:080
89209930,0cyclictest1877-21perl22:17:010
89209930,0cyclictest0-21swapper/000:17:050
8305030,0irq/26-0000:00:0-21swapper/321:06:523
329930,0watchdog/30-21swapper/319:37:023
29805030,0irq/28-eth0-rx-0-21swapper/321:11:593
29805030,0irq/28-eth0-rx-0-21swapper/321:00:353
29805030,0irq/28-eth0-rx-0-21swapper/320:41:583
169930,0watchdog/120327-21diskmemload22:41:551
169930,0watchdog/10-21swapper/121:37:071
169930,0watchdog/10-21swapper/121:24:461
169930,0watchdog/10-21swapper/120:47:021
169930,0watchdog/10-21swapper/120:36:581
169930,0watchdog/10-21swapper/119:42:101
149930,0migration/020179-21kthreadcore22:27:040
169920,0watchdog/10-21swapper/120:26:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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