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2026-08-09 - 11:05
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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 Sun Aug 09, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251624937,0sleep00-21swapper/019:25:050
347124637,0sleep10-21swapper/119:28:591
328724233,0sleep20-21swapper/219:27:002
334423731,0sleep30-21swapper/319:27:373
4160,0ktimersoftd/00-21swapper/022:31:410
36229966,0cyclictest21688-21kworker/0:000:58:300
36229960,0cyclictest20990-21python20:00:090
35160,0ktimersoftd/30-21swapper/322:31:413
339960,0migration/332029-21sh00:29:293
339960,0migration/326812-21idleruntime21:15:003
339960,0migration/317060-21sh23:21:503
339960,0migration/314004-21sh00:16:403
29805060,0irq/28-eth0-rx-7195-21memory23:15:043
29805060,0irq/28-eth0-rx-3068-21cut23:34:563
29805060,0irq/28-eth0-rx-26709-21kthreadcore21:35:023
29805060,0irq/28-eth0-rx-25953-21munin-run21:54:443
29805060,0irq/28-eth0-rx-18061-21perl00:39:593
29805060,0irq/28-eth0-rx-16338-21iostat_ios21:30:023
29805060,0irq/28-eth0-rx-14963-21port_sshpriv21:45:073
36249955,0cyclictest0-21swapper/223:32:572
36249955,0cyclictest0-21swapper/223:04:352
36249955,0cyclictest0-21swapper/200:04:582
36249953,0cyclictest3250-21irqbalance21:36:112
36249950,0cyclictest0-21swapper/223:27:552
36249950,0cyclictest0-21swapper/221:34:242
36249950,0cyclictest0-21swapper/219:54:462
36239955,0cyclictest0-21swapper/100:34:591
36239950,0cyclictest0-21swapper/123:10:001
36229955,0cyclictest24950-21kworker/0:123:49:460
36229955,0cyclictest24950-21kworker/0:123:44:500
36229955,0cyclictest24950-21kworker/0:123:35:120
36229955,0cyclictest24950-21kworker/0:123:26:100
36229955,0cyclictest24950-21kworker/0:123:20:180
36229955,0cyclictest24950-21kworker/0:123:14:480
36229955,0cyclictest24950-21kworker/0:123:13:120
36229955,0cyclictest24950-21kworker/0:100:09:580
36229955,0cyclictest24950-21kworker/0:100:04:480
36229955,0cyclictest24950-21kworker/0:100:00:100
36229955,0cyclictest21688-21kworker/0:000:50:220
36229955,0cyclictest21688-21kworker/0:000:44:500
36229955,0cyclictest21688-21kworker/0:000:40:300
36229955,0cyclictest21688-21kworker/0:000:30:440
36229955,0cyclictest21688-21kworker/0:000:20:180
36229955,0cyclictest14113-21kworker/0:223:04:460
36229955,0cyclictest14113-21kworker/0:222:59:460
36229955,0cyclictest14113-21kworker/0:222:55:020
36229955,0cyclictest14113-21kworker/0:222:51:120
36229955,0cyclictest14113-21kworker/0:222:45:560
36229955,0cyclictest14113-21kworker/0:222:40:060
36229955,0cyclictest14113-21kworker/0:222:19:480
36229955,0cyclictest14113-21kworker/0:222:09:460
36229955,0cyclictest14113-21kworker/0:222:04:480
36229955,0cyclictest14113-21kworker/0:222:03:420
36229955,0cyclictest14113-21kworker/0:221:50:460
36229955,0cyclictest14113-21kworker/0:221:42:340
36229955,0cyclictest14113-21kworker/0:221:39:100
36229953,0cyclictest10094-21kworker/0:220:59:560
339950,0migration/39662-21hddtemp_smartct00:35:013
339950,0migration/36178-21kthreadcore21:20:043
339950,0migration/35962-21kthreadcore19:50:013
339950,0migration/3533-21sh21:55:243
339950,0migration/33762-21taskset20:57:483
339950,0migration/33762-21taskset20:57:483
339950,0migration/3347-21fschecks_count21:39:593
339950,0migration/326559-21fschecks_time20:29:593
339950,0migration/326372-21munin-node19:45:003
339950,0migration/322568-21munin-node20:49:583
339950,0migration/322111-21aten_r1power_vo20:04:573
339950,0migration/320164-21kthreadcore19:40:013
339950,0migration/316856-21kthreadcore22:45:053
339950,0migration/316629-21irqcore00:20:033
339950,0migration/310614-21kthreadcore19:55:033
329950,0watchdog/35688-21fschecks_time23:55:003
329950,0watchdog/329192-21sed22:50:043
329950,0watchdog/322767-21python23:05:083
329950,0watchdog/321041-21ssh00:02:443
329950,0watchdog/314267-21python23:00:083
329950,0watchdog/312482-21irqcore20:20:033
329950,0watchdog/312312-21gltestperf21:04:593
329950,0watchdog/311944-21df23:39:563
329950,0watchdog/30-21swapper/322:40:043
329950,0watchdog/30-21swapper/300:09:563
29815050,0irq/29-eth0-tx-30534-21munin-node00:10:052
29815050,0irq/29-eth0-tx-22798-21ssh00:22:222
29815050,0irq/29-eth0-tx-17211-21munin-node00:40:072
29815050,0irq/29-eth0-tx-14832sleep200:49:302
29815050,0irq/29-eth0-tx-0-21swapper/223:42:532
29815050,0irq/29-eth0-tx-0-21swapper/200:58:262
29815050,0irq/29-eth0-tx-0-21swapper/021:30:050
29815050,0irq/29-eth0-tx-0-21swapper/019:46:110
29815050,0irq/29-eth0-tx-0-21swapper/019:30:560
29805050,0irq/28-eth0-rx-7017-21chrt00:30:453
29805050,0irq/28-eth0-rx-4805-21fschecks_time20:14:593
29805050,0irq/28-eth0-rx-26736-21grep00:45:013
29805050,0irq/28-eth0-rx-20007-21kthreadcore20:00:033
29805050,0irq/28-eth0-rx-14948-21cut00:55:043
29805050,0irq/28-eth0-rx-0-21swapper/323:50:043
29805050,0irq/28-eth0-rx-0-21swapper/323:30:023
29805050,0irq/28-eth0-rx-0-21swapper/323:12:173
29805050,0irq/28-eth0-rx-0-21swapper/322:55:053
29805050,0irq/28-eth0-rx-0-21swapper/322:21:263
29805050,0irq/28-eth0-rx-0-21swapper/322:17:003
29805050,0irq/28-eth0-rx-0-21swapper/322:11:143
29805050,0irq/28-eth0-rx-0-21swapper/322:09:043
29805050,0irq/28-eth0-rx-0-21swapper/322:00:033
27150,0ktimersoftd/20-21swapper/223:56:172
27150,0ktimersoftd/20-21swapper/222:31:412
249950,0watchdog/20-21swapper/222:10:002
179950,0migration/13592-21munin-node22:35:051
179950,0migration/130102-21gltestperf20:09:591
179950,0migration/12832-21latency_hist23:34:451
179950,0migration/125333-21kthreadcore21:35:021
179950,0migration/120622-21kthreadcore21:50:031
179950,0migration/11931-21munin-node22:15:111
179950,0migration/111758-21irqcore00:55:031
169950,0watchdog/132303-21unixbench-2d00:45:121
169950,0watchdog/125654-21grep20:05:031
169950,0watchdog/112314-21gltestperf21:04:591
149950,0migration/09981-21missed_timers20:15:040
149950,0migration/06612-21kthreadcore23:55:040
149950,0migration/03821-21munin-node22:35:070
149950,0migration/032530-21sendmail_mailst21:55:080
149950,0migration/032342-21kthreadcore22:15:040
149950,0migration/030850-21kthreadcore20:10:030
149950,0migration/029609-21kthreadcore20:30:030
149950,0migration/028292-21munin-node23:30:010
149950,0migration/024508-21kthreadcore20:05:030
149950,0migration/023790-21latency_hist00:24:450
149950,0migration/02100-21kthreadcore20:55:020
149950,0migration/02100-21kthreadcore20:55:020
149950,0migration/020184-21taskset22:27:150
149950,0migration/017100-21kthreadcore21:05:040
149950,0migration/016375-21kthreadcore23:40:020
149950,0migration/015058-21rt-features21:45:080
149950,0migration/014628-21mdstat00:35:060
149950,0migration/013066-21kthreadcore21:25:030
149950,0migration/012218-21kthreadcore00:15:040
36249944,0cyclictest0-21swapper/220:40:002
36249943,0cyclictest3571-21lldpd23:19:592
36249943,0cyclictest3571-21lldpd21:44:572
36249943,0cyclictest3524-21snmpd20:36:542
36249943,0cyclictest3524-21snmpd19:53:382
36249943,0cyclictest3250-21irqbalance22:35:012
36249943,0cyclictest3250-21irqbalance21:25:012
36249943,0cyclictest26749-21awk20:30:002
36249943,0cyclictest21191-21awk23:45:002
36249943,0cyclictest16036-21awk20:45:012
36249943,0cyclictest15782-21awk22:45:022
36249943,0cyclictest12315-21awk20:20:022
36249943,0cyclictest12033-21awk22:04:592
36249943,0cyclictest1056-21awk00:30:012
36249940,0cyclictest0-21swapper/219:31:062
36239944,0cyclictest0-21swapper/123:24:591
36239944,0cyclictest0-21swapper/122:48:531
36239943,0cyclictest9003-21awk21:25:001
36239943,0cyclictest459-21awk22:55:031
36239943,0cyclictest3571-21lldpd23:46:591
36239943,0cyclictest3571-21lldpd20:16:261
36239943,0cyclictest3571-21lldpd00:50:011
36239943,0cyclictest3571-21lldpd00:40:011
36239943,0cyclictest3524-21snmpd00:17:111
36239943,0cyclictest17552-21awk23:05:001
36239943,0cyclictest1632-21awk20:35:031
36239943,0cyclictest14568-21awk00:00:001
36239943,0cyclictest13854-21awk22:25:001
36239943,0cyclictest12434-21awk20:20:031
36239940,0cyclictest0-21swapper/123:03:511
36239940,0cyclictest0-21swapper/122:29:581
36239940,0cyclictest0-21swapper/122:09:561
36229944,0cyclictest17623-21kworker/0:021:20:100
36229944,0cyclictest10094-21kworker/0:220:50:020
36229944,0cyclictest10094-21kworker/0:220:39:450
36229944,0cyclictest10094-21kworker/0:220:34:450
36229944,0cyclictest10094-21kworker/0:220:25:050
36229944,0cyclictest10094-21kworker/0:220:20:010
36229944,0cyclictest10094-21kworker/0:219:39:450
36229943,0cyclictest3250-21irqbalance19:54:510
36229943,0cyclictest3250-21irqbalance19:49:500
339940,0migration/33485-21irqrtprio00:50:033
339940,0migration/324330-21kthreadcore00:05:043
339940,0migration/316738-21kthreadcore20:45:033
339940,0migration/315337-21kthreadcore22:25:023
329940,0watchdog/30-21swapper/323:25:043
329940,0watchdog/30-21swapper/321:10:033
329940,0watchdog/30-21swapper/320:25:033
329940,0watchdog/30-21swapper/320:10:033
329940,0watchdog/30-21swapper/319:29:593
29815040,0irq/29-eth0-tx-8038-21ssh23:15:252
29815040,0irq/29-eth0-tx-32234-21ssh21:39:502
29815040,0irq/29-eth0-tx-27958-21ssh22:14:482
29815040,0irq/29-eth0-tx-16424-21ssh23:04:512
29815040,0irq/29-eth0-tx-14875-21diskmemload22:24:552
29815040,0irq/29-eth0-tx-13343-21ssh23:59:472
29815040,0irq/29-eth0-tx-0-21swapper/223:50:042
29815040,0irq/29-eth0-tx-0-21swapper/223:34:582
29815040,0irq/29-eth0-tx-0-21swapper/223:10:022
29815040,0irq/29-eth0-tx-0-21swapper/222:49:482
29815040,0irq/29-eth0-tx-0-21swapper/222:19:572
29815040,0irq/29-eth0-tx-0-21swapper/222:00:032
29815040,0irq/29-eth0-tx-0-21swapper/221:55:092
29815040,0irq/29-eth0-tx-0-21swapper/221:49:572
29815040,0irq/29-eth0-tx-0-21swapper/200:50:032
29815040,0irq/29-eth0-tx-0-21swapper/200:34:502
29815040,0irq/29-eth0-tx-0-21swapper/200:15:052
29815040,0irq/29-eth0-tx-0-21swapper/021:09:590
29815040,0irq/29-eth0-tx-0-21swapper/020:44:520
29815040,0irq/29-eth0-tx-0-21swapper/019:34:580
29805040,0irq/28-eth0-rx-14605-21kthreadcore19:35:023
29805040,0irq/28-eth0-rx-0-21swapper/323:45:133
29805040,0irq/28-eth0-rx-0-21swapper/322:35:143
29805040,0irq/28-eth0-rx-0-21swapper/321:29:443
259940,0migration/230832-21irqrtprio20:55:012
259940,0migration/230832-21irqrtprio20:55:012
259940,0migration/227599-21kthreadcore21:15:022
259940,0migration/227043-21kthreadcore00:25:062
259940,0migration/22632-21kthreadcore21:20:032
259940,0migration/223668-21kthreadcore20:25:032
259940,0migration/211010-21latency_hist19:34:442
249940,0watchdog/2867-21munin-node22:55:042
249940,0watchdog/225087-21cut20:50:032
249940,0watchdog/218298-21munin-node19:39:552
249940,0watchdog/212315-21gltestperf21:04:592
249940,0watchdog/20-21swapper/222:40:042
249940,0watchdog/20-21swapper/220:00:032
249940,0watchdog/20-21swapper/219:44:592
179940,0migration/19405-21kthreadcore19:30:041
179940,0migration/17222-21sh00:31:221
179940,0migration/14745-21fschecks_count22:19:591
179940,0migration/14023-21kthreadcore21:20:031
179940,0migration/131477-21sh19:45:071
179940,0migration/126676-21sh20:29:591
179940,0migration/124422-21needreboot20:25:041
179940,0migration/124125-21kthreadcore20:50:031
179940,0migration/123995-21kthreadcore21:10:041
179940,0migration/122799-21kthreadcore19:40:021
179940,0migration/120138-21kthreadcore20:45:041
179940,0migration/116404-21unixbench_multi23:20:111
179940,0migration/115735-21df_abs00:19:591
179940,0migration/11478-21kernelversion21:40:031
179940,0migration/114389-21kthreadcore23:40:021
179940,0migration/112753-21kthreadcore19:35:011
179940,0migration/111066-21taskset21:03:351
179940,0migration/110491-21taskset22:04:101
169940,0watchdog/13008-21telnet23:34:561
169940,0watchdog/114875-21diskmemload22:40:041
169940,0watchdog/110131-21kthreadcore19:55:031
169940,0watchdog/10-21swapper/121:45:001
169940,0watchdog/10-21swapper/120:00:031
169940,0watchdog/10-21swapper/100:25:281
169940,0watchdog/10-21swapper/100:04:521
8305030,0irq/26-0000:00:0-21swapper/320:39:453
36249932,0cyclictest4127-21basename20:14:572
36249932,0cyclictest19759-21awk21:10:012
36239932,0cyclictest8855-21awk20:40:001
36239932,0cyclictest5955-21awk23:55:021
36239932,0cyclictest30355-21awk20:54:591
36239932,0cyclictest30355-21awk20:54:591
36239932,0cyclictest1306-21awk19:49:581
36239930,0cyclictest27097-21perl21:54:591
36239930,0cyclictest26536-21perl21:14:581
36239930,0cyclictest1981-21perl23:14:581
36239930,0cyclictest16430-21cut22:05:031
36229933,0cyclictest17623-21kworker/0:021:14:460
29805030,0irq/28-eth0-rx-0-21swapper/320:59:543
259930,0migration/28787-21kthreadcore21:00:022
249930,0watchdog/20-21swapper/220:10:032
249930,0watchdog/20-21swapper/220:04:592
169930,0watchdog/120737-21kthreadcore21:30:031
169930,0watchdog/10-21swapper/123:50:041
169930,0watchdog/10-21swapper/122:50:041
169930,0watchdog/10-21swapper/100:09:561
329920,0watchdog/30-21swapper/320:34:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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