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2026-08-09 - 00:02
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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 Sat Aug 08, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278224735,0sleep20-21swapper/207:25:142
290624029,0sleep00-21swapper/007:26:370
305223526,0sleep10-21swapper/107:28:181
293423525,0sleep30-21swapper/307:27:003
8305060,0irq/26-0000:00:14643-21turbostat.cron12:19:422
35160,0ktimersoftd/30-21swapper/312:57:063
339960,0migration/323684-21kthreadcore09:10:003
32529960,0cyclictest22479-21ssh09:32:531
32529960,0cyclictest0-21swapper/112:52:201
32519960,0cyclictest0-21swapper/012:39:560
329960,0watchdog/330043-21sh10:51:373
329960,0watchdog/324629-21ssh12:43:503
29805060,0irq/28-eth0-rx-3175-21diskstats11:34:573
29805060,0irq/28-eth0-rx-22172-21ssh10:48:333
29805060,0irq/28-eth0-rx-0-21swapper/310:24:143
149960,0migration/09586-21kthreadcore12:15:030
149960,0migration/05952-21sh12:30:050
149960,0migration/03749-21latency12:10:030
149960,0migration/021036-21munin-node12:20:040
149960,0migration/02088-21kthreadcore09:20:010
8305050,0irq/26-0000:00:23505-21fschecks_time10:49:572
8305050,0irq/26-0000:00:15952-21munin-run11:04:432
8305050,0irq/26-0000:00:0-21swapper/209:54:592
4150,0ktimersoftd/00-21swapper/011:12:550
339950,0migration/39682-21kthreadcore07:55:003
339950,0migration/37944-21taskset09:44:023
339950,0migration/36803-21runrttasks08:35:253
339950,0migration/330808-21kthreadcore07:45:003
339950,0migration/329532-21kthreadcore10:15:003
339950,0migration/32854-21kthreadcore09:20:013
339950,0migration/327694-21kthreadcore09:35:003
339950,0migration/322013-21munin-node10:29:583
339950,0migration/321039-21if_eth1.211:44:593
339950,0migration/320439-21mdstat08:45:013
339950,0migration/319468-21df_abs10:09:553
339950,0migration/318674-21fschecks_count11:24:573
339950,0migration/316764-21latency08:20:013
339950,0migration/315041-21kthreadcore07:35:013
339950,0migration/314607-21taskset09:29:213
32529955,0cyclictest0-21swapper/112:24:251
32529955,0cyclictest0-21swapper/110:38:001
32529955,0cyclictest0-21swapper/110:28:041
32529955,0cyclictest0-21swapper/110:04:441
32529950,0cyclictest0-21swapper/112:17:481
32529950,0cyclictest0-21swapper/108:10:171
32519950,0cyclictest0-21swapper/012:53:010
329950,0watchdog/37045-21ntp_kernel_pll_11:15:053
329950,0watchdog/35967-21sensors12:30:063
329950,0watchdog/332227-21cut11:30:013
329950,0watchdog/32316-21sh12:49:583
329950,0watchdog/322368-21grep08:25:013
329950,0watchdog/321476-21kthreadcore07:40:013
329950,0watchdog/317677-21kthreadcore09:30:013
329950,0watchdog/30-21swapper/312:20:023
329950,0watchdog/30-21swapper/311:40:013
329950,0watchdog/30-21swapper/311:03:053
29815050,0irq/29-eth0-tx-6671-21ssh10:57:492
29815050,0irq/29-eth0-tx-3490-21munin-node07:30:070
29815050,0irq/29-eth0-tx-31739-21sh09:39:422
29815050,0irq/29-eth0-tx-25221-21munin-node12:45:062
29815050,0irq/29-eth0-tx-21659-21munin-node08:04:560
29815050,0irq/29-eth0-tx-21328-21df10:29:552
29815050,0irq/29-eth0-tx-0-21swapper/212:50:592
29815050,0irq/29-eth0-tx-0-21swapper/212:32:092
29815050,0irq/29-eth0-tx-0-21swapper/212:22:442
29815050,0irq/29-eth0-tx-0-21swapper/211:36:192
29815050,0irq/29-eth0-tx-0-21swapper/210:47:072
29815050,0irq/29-eth0-tx-0-21swapper/210:25:452
29805050,0irq/28-eth0-rx-8740-21kthreadcore11:55:013
29805050,0irq/28-eth0-rx-8220-21ssh10:40:003
29805050,0irq/28-eth0-rx-533-21ssh11:14:413
29805050,0irq/28-eth0-rx-27669-21grep12:25:023
29805050,0irq/28-eth0-rx-22065-21df_abs12:04:553
29805050,0irq/28-eth0-rx-17075-21ssh11:22:383
29805050,0irq/28-eth0-rx-12739-21python12:15:083
29805050,0irq/28-eth0-rx-0-21swapper/312:47:283
29805050,0irq/28-eth0-rx-0-21swapper/312:34:433
29805050,0irq/28-eth0-rx-0-21swapper/312:10:013
29805050,0irq/28-eth0-rx-0-21swapper/310:35:043
29805050,0irq/28-eth0-rx-0-21swapper/310:24:563
29805050,0irq/28-eth0-rx-0-21swapper/310:07:253
29805050,0irq/28-eth0-rx-0-21swapper/309:55:003
29805050,0irq/28-eth0-rx-0-21swapper/309:50:253
27150,0ktimersoftd/20-21swapper/211:50:322
259950,0migration/25222-21sh10:39:032
259950,0migration/229221-21kthreadcore08:30:012
259950,0migration/22235-21sh11:34:092
259950,0migration/21836-21latency_hist09:59:422
259950,0migration/214493-21munin-node09:44:592
259950,0migration/21402-21kthreadcore08:55:002
259950,0migration/210042-21kthreadcore08:39:592
249950,0watchdog/215854-21kthreadcore08:20:012
249950,0watchdog/213057-21kthreadcore11:20:012
249950,0watchdog/20-21swapper/211:55:012
19150,0ktimersoftd/10-21swapper/110:23:581
179950,0migration/18645-21kthreadcore07:30:001
179950,0migration/17230-21sh10:59:251
179950,0migration/15856-21munin-node11:54:591
179950,0migration/132394-21taskset09:18:071
169950,0watchdog/114698-21cat11:40:011
149950,0migration/08508-21irqcore07:54:590
149950,0migration/07599-21kthreadcore10:00:020
149950,0migration/06596-21munin-node07:50:090
149950,0migration/05645-21kthreadcore08:14:590
149950,0migration/04460-21kthreadcore08:35:020
149950,0migration/03193-21kthreadcore09:40:000
149950,0migration/031605-21kthreadcore10:35:030
149950,0migration/030652-21kthreadcore11:30:010
149950,0migration/029850-21timerwakeupswit09:35:070
149950,0migration/028959-21latency_hist08:54:420
149950,0migration/028486-21ksmtuned08:51:160
149950,0migration/028476-21kthreadcore10:50:010
149950,0migration/028316-21kthreadcore07:44:590
149950,0migration/026798-21kthreadcore10:30:020
149950,0migration/025709-21kthreadcore12:25:010
149950,0migration/025645-21timerwakeupswit10:10:080
149950,0migration/025388-21sh09:54:060
149950,0migration/023028-21kthreadcore07:40:010
149950,0migration/020676-21munin-node08:00:060
149950,0migration/01864-21kthreadcore11:50:030
149950,0migration/017310-21kthreadcore10:25:010
149950,0migration/017136-21sendmail_mailtr08:20:040
149950,0migration/016284-21kthreadcore12:00:000
149950,0migration/01595-21kthreadcore10:55:030
149950,0migration/014381-21kthreadcore09:05:000
149950,0migration/013744-21kthreadcore10:05:000
149950,0migration/013231-21kthreadcore09:25:010
149950,0migration/013092-21kthreadcore09:44:580
8305040,0irq/26-0000:00:0-21swapper/309:04:423
339940,0migration/310348-21taskset07:32:453
32539943,0cyclictest6878-21awk10:39:582
32539943,0cyclictest5077-21awk08:59:572
32539943,0cyclictest3524-21snmpd09:05:292
32539943,0cyclictest3524-21snmpd08:14:432
32539943,0cyclictest3524-21snmpd08:05:432
32539943,0cyclictest3524-21snmpd07:46:282
32539943,0cyclictest3524-21snmpd07:31:282
32539943,0cyclictest22903-21awk08:49:582
32539943,0cyclictest15728-21awk08:44:582
32539943,0cyclictest1170-21ps07:49:592
32539943,0cyclictest1154-21awk08:34:592
32529943,0cyclictest4990-21awk08:59:571
32529943,0cyclictest3524-21snmpd12:55:321
32529943,0cyclictest3524-21snmpd12:44:471
32529943,0cyclictest3524-21snmpd12:40:171
32529943,0cyclictest3524-21snmpd12:34:471
32529943,0cyclictest3524-21snmpd12:31:171
32529943,0cyclictest3524-21snmpd11:31:161
32529943,0cyclictest3524-21snmpd11:14:461
32529943,0cyclictest3524-21snmpd11:04:461
32529943,0cyclictest3524-21snmpd11:04:461
32529943,0cyclictest3524-21snmpd10:40:151
32529943,0cyclictest3524-21snmpd09:55:151
32529943,0cyclictest3524-21snmpd08:39:431
32529943,0cyclictest3089-21awk09:59:591
32529943,0cyclictest26517-21awk08:29:591
32529943,0cyclictest22061-21awk10:29:581
32529943,0cyclictest14289-21awk11:59:581
32529943,0cyclictest12165-21awk09:04:581
32529943,0cyclictest11839-21awk07:34:581
32519944,0cyclictest0-21swapper/012:36:280
32519943,0cyclictest5016-21awk10:19:570
32519943,0cyclictest3571-21lldpd10:14:480
32519943,0cyclictest3571-21lldpd09:14:170
32519943,0cyclictest3571-21lldpd08:47:170
32519943,0cyclictest3524-21snmpd12:56:170
32519943,0cyclictest29903-21awk08:09:560
32519943,0cyclictest28117-21sadc11:49:420
32519943,0cyclictest26975-21awk09:54:580
32519943,0cyclictest25104-21sadc08:29:420
32519943,0cyclictest24469-21sadc11:09:430
32519943,0cyclictest24469-21sadc11:09:430
32519943,0cyclictest11061-21sadc11:39:430
329940,0watchdog/328963-21telnet08:09:533
329940,0watchdog/328664-21grep08:30:013
329940,0watchdog/30-21swapper/310:00:013
329940,0watchdog/30-21swapper/309:15:013
329940,0watchdog/30-21swapper/307:50:013
29815040,0irq/29-eth0-tx-841-21ssh11:14:512
29815040,0irq/29-eth0-tx-23097-21ssh11:05:382
29815040,0irq/29-eth0-tx-23097-21ssh11:05:382
29815040,0irq/29-eth0-tx-19089-21ssh10:09:482
29815040,0irq/29-eth0-tx-18070-21munin-node11:25:052
29815040,0irq/29-eth0-tx-14974-21ssh09:29:550
29815040,0irq/29-eth0-tx-0-21swapper/212:54:532
29815040,0irq/29-eth0-tx-0-21swapper/212:05:042
29815040,0irq/29-eth0-tx-0-21swapper/211:59:422
29815040,0irq/29-eth0-tx-0-21swapper/211:45:162
29815040,0irq/29-eth0-tx-0-21swapper/211:39:502
29815040,0irq/29-eth0-tx-0-21swapper/210:19:472
29815040,0irq/29-eth0-tx-0-21swapper/210:15:082
29815040,0irq/29-eth0-tx-0-21swapper/210:04:542
29815040,0irq/29-eth0-tx-0-21swapper/209:51:082
29815040,0irq/29-eth0-tx-0-21swapper/209:39:472
29815040,0irq/29-eth0-tx-0-21swapper/007:35:020
29805040,0irq/28-eth0-rx-30231-21kthreadcore11:50:023
29805040,0irq/28-eth0-rx-0-21swapper/312:03:113
29805040,0irq/28-eth0-rx-0-21swapper/311:05:073
29805040,0irq/28-eth0-rx-0-21swapper/311:05:073
29805040,0irq/28-eth0-rx-0-21swapper/310:54:583
29805040,0irq/28-eth0-rx-0-21swapper/309:44:503
29805040,0irq/28-eth0-rx-0-21swapper/308:40:003
29805040,0irq/28-eth0-rx-0-21swapper/308:04:563
29805040,0irq/28-eth0-rx-0-21swapper/308:00:023
259940,0migration/28606-21irqcore07:54:592
259940,0migration/226876-21irqcore09:15:002
259940,0migration/224752-21aten_r1power_cu11:09:542
259940,0migration/224599-21switchtime09:10:072
259940,0migration/224134-21fschecks_time12:24:572
259940,0migration/218515-21kthreadcore08:00:022
259940,0migration/217446-21fschecks_time12:39:592
259940,0migration/217324-21uptime07:35:082
249940,0watchdog/20-21swapper/212:35:022
249940,0watchdog/20-21swapper/212:10:502
249940,0watchdog/20-21swapper/209:30:012
249940,0watchdog/20-21swapper/208:25:012
249940,0watchdog/20-21swapper/207:40:012
179940,0migration/17225-21kthreadcore11:35:021
179940,0migration/17184-21latency_hist07:54:421
179940,0migration/13361-21kthreadcore09:40:001
179940,0migration/130901-21kthreadcore11:50:021
179940,0migration/128937-21kthreadcore09:35:001
179940,0migration/126185-21idleruntime07:44:571
179940,0migration/124350-21kthreadcore11:45:011
179940,0migration/115680-21kthreadcore08:20:011
179940,0migration/115385-21taskset09:45:251
179940,0migration/114860-21df_abs07:59:561
179940,0migration/113675-21missed_timers11:00:021
179940,0migration/111305-21kthreadcore11:20:001
169940,0watchdog/131565-21ssh11:10:251
169940,0watchdog/130908-21fschecks_time12:09:581
169940,0watchdog/129667-21ssh12:08:581
169940,0watchdog/118014-21taskset11:24:451
169940,0watchdog/11537-21kthreadcore07:50:011
169940,0watchdog/115000-21tune2fs10:44:571
169940,0watchdog/112637-21tr09:25:011
169940,0watchdog/10-21swapper/110:17:011
169940,0watchdog/10-21swapper/107:40:011
149940,0migration/07860-21kthreadcore11:55:010
149940,0migration/030980-21kthreadcore12:45:020
149940,0migration/018063-21sh11:24:540
149940,0migration/017630-21sh11:24:180
8305030,0irq/26-0000:00:0-21swapper/308:49:593
339930,0migration/310546-21taskset09:00:423
32539932,0cyclictest3571-21lldpd09:24:472
32529933,0cyclictest0-21swapper/108:07:261
32529932,0cyclictest3524-21snmpd08:44:581
32529932,0cyclictest30599-21sed08:54:591
32529932,0cyclictest24044-21awk10:49:591
32529932,0cyclictest19280-21expr09:09:561
32529931,0cyclictest24248-21tr08:50:001
32529930,0cyclictest24181-21perl12:24:571
32519933,0cyclictest26492-21awk08:29:590
32519933,0cyclictest26147-21kworker/0:210:44:570
32519932,0cyclictest8826-21awk10:59:590
32519932,0cyclictest8552-21awk08:39:580
32519932,0cyclictest3524-21snmpd09:00:440
32519932,0cyclictest25555-21munin-node09:15:000
32519932,0cyclictest22878-21awk12:04:590
32519932,0cyclictest12098-21sensors10:40:050
329930,0watchdog/30-21swapper/308:15:053
29805030,0irq/28-eth0-rx-0-21swapper/308:54:543
249930,0watchdog/20-21swapper/209:19:572
249930,0watchdog/20-21swapper/208:09:532
169930,0watchdog/120815-21kthreadcore09:50:011
169930,0watchdog/10-21swapper/110:12:011
169930,0watchdog/10-21swapper/109:20:011
169930,0watchdog/10-21swapper/108:35:011
169930,0watchdog/10-21swapper/108:25:011
149930,0migration/08410-21sh11:17:230
32529920,0cyclictest0-21swapper/108:14:521
32519920,0cyclictest11313-21diskmemload11:39:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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