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2026-04-20 - 22:16
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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 the highest latencies:
System rack1slot2.osadl.org (updated Mon Apr 20, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2207925655,0sleep20-21swapper/207:17:522
2232023927,0sleep30-21swapper/307:20:373
2204823525,0sleep10-21swapper/107:17:311
2199623423,0sleep00-21swapper/007:16:540
223949988,0cyclictest3524-21snmpd12:17:311
8305060,0irq/26-0000:00:13837-21awk12:15:412
35160,0ktimersoftd/30-21swapper/312:33:003
339960,0migration/36563-21sh11:14:293
339960,0migration/34202-21sh12:08:053
339960,0migration/328754-21sh09:51:323
339960,0migration/327059-21sh09:33:373
339960,0migration/32660-21munin-node10:35:533
339960,0migration/324291-21sh11:25:383
339960,0migration/318414-21taskset10:42:013
29815060,0irq/29-eth0-tx-19128-21munin-node07:40:570
29815060,0irq/29-eth0-tx-14092-21munin-node12:16:052
29805060,0irq/28-eth0-rx-32236-21perl12:25:563
29805060,0irq/28-eth0-rx-25461-21irqrtprio10:10:573
29805060,0irq/28-eth0-rx-0-21swapper/309:26:003
224029960,0cyclictest0-21swapper/210:30:262
223949960,0cyclictest0-21swapper/110:55:561
223949960,0cyclictest0-21swapper/110:30:231
223949960,0cyclictest0-21swapper/110:19:311
223949960,0cyclictest0-21swapper/107:50:411
223939960,0cyclictest1402-21diskmemload10:26:310
149960,0migration/05415-21fschecks_time09:40:550
149960,0migration/023049-21fschecks_count07:20:530
149960,0migration/02092-21taskset11:48:570
149960,0migration/017404-21sh10:25:360
149960,0migration/015188-21sh11:19:190
8305050,0irq/26-0000:00:32425-21basename10:15:422
8305050,0irq/26-0000:00:13005-21basename09:45:412
8305050,0irq/26-0000:00:0-21swapper/308:46:033
339950,0migration/34851-21latency_hist08:15:413
339950,0migration/332310-21kthreadcore08:55:593
339950,0migration/33154-21kthreadcore10:16:003
339950,0migration/331231-21fschecks_time09:55:563
339950,0migration/327853-21kthreadcore12:41:003
339950,0migration/327458-21kthreadcore11:06:003
339950,0migration/327055-21fschecks_time10:30:553
339950,0migration/325916-21taskset07:43:553
339950,0migration/325458-21taskset10:28:583
339950,0migration/325002-21kthreadcore08:05:593
339950,0migration/323263-21fschecks_count12:20:553
339950,0migration/322667-21aten2.4-expect07:20:513
339950,0migration/321769-21kthreadcore08:25:593
339950,0migration/319289-21kthreadcore10:05:593
339950,0migration/318572-21timerwakeupswit08:21:063
339950,0migration/31817-21sh09:20:543
339950,0migration/315591-21taskset08:45:213
339950,0migration/315474-21kthreadcore07:35:593
339950,0migration/313926-21cpuspeed_turbos11:00:553
339950,0migration/312606-21kthreadcore11:16:013
339950,0migration/312404-21aten_r1power_en09:05:523
339950,0migration/311566-21timerwakeupswit09:01:073
329950,0watchdog/38391-21chrt11:33:163
329950,0watchdog/33463-21munin-node07:26:003
329950,0watchdog/327352-21ssh12:01:373
329950,0watchdog/32729-21kthreadcore07:51:003
329950,0watchdog/30-21swapper/310:01:003
329950,0watchdog/30-21swapper/309:46:003
29815050,0irq/29-eth0-tx-23966-21rm12:20:582
29815050,0irq/29-eth0-tx-20600-21ssh11:01:462
29815050,0irq/29-eth0-tx-19864-21kthreadcore12:35:592
29815050,0irq/29-eth0-tx-1348-21munin-node08:36:050
29815050,0irq/29-eth0-tx-0-21swapper/212:26:012
29815050,0irq/29-eth0-tx-0-21swapper/212:06:382
29815050,0irq/29-eth0-tx-0-21swapper/212:05:182
29815050,0irq/29-eth0-tx-0-21swapper/211:39:282
29815050,0irq/29-eth0-tx-0-21swapper/211:34:012
29815050,0irq/29-eth0-tx-0-21swapper/211:22:262
29815050,0irq/29-eth0-tx-0-21swapper/211:12:192
29815050,0irq/29-eth0-tx-0-21swapper/210:50:032
29815050,0irq/29-eth0-tx-0-21swapper/210:09:222
29815050,0irq/29-eth0-tx-0-21swapper/210:01:582
29815050,0irq/29-eth0-tx-0-21swapper/209:46:012
29815050,0irq/29-eth0-tx-0-21swapper/209:40:252
29815050,0irq/29-eth0-tx-0-21swapper/009:21:170
29815050,0irq/29-eth0-tx-0-21swapper/009:10:500
29815050,0irq/29-eth0-tx-0-21swapper/009:05:570
29815050,0irq/29-eth0-tx-0-21swapper/008:56:010
29815050,0irq/29-eth0-tx-0-21swapper/008:41:000
29815050,0irq/29-eth0-tx-0-21swapper/008:10:580
29815050,0irq/29-eth0-tx-0-21swapper/007:45:560
29805050,0irq/28-eth0-rx-31530-21sh11:26:513
29805050,0irq/28-eth0-rx-20997-21chrt12:16:413
29805050,0irq/28-eth0-rx-12172-21df_abs11:55:553
29805050,0irq/28-eth0-rx-0-21swapper/312:45:493
29805050,0irq/28-eth0-rx-0-21swapper/312:36:023
29805050,0irq/28-eth0-rx-0-21swapper/312:11:003
29805050,0irq/28-eth0-rx-0-21swapper/311:50:443
29805050,0irq/28-eth0-rx-0-21swapper/311:45:563
29805050,0irq/28-eth0-rx-0-21swapper/311:43:483
29805050,0irq/28-eth0-rx-0-21swapper/311:35:583
29805050,0irq/28-eth0-rx-0-21swapper/310:56:453
29805050,0irq/28-eth0-rx-0-21swapper/310:46:013
29805050,0irq/28-eth0-rx-0-21swapper/310:20:533
29805050,0irq/28-eth0-rx-0-21swapper/309:41:493
29805050,0irq/28-eth0-rx-0-21swapper/309:35:583
29805050,0irq/28-eth0-rx-0-21swapper/308:50:593
29805050,0irq/28-eth0-rx-0-21swapper/307:46:023
27150,0ktimersoftd/20-21swapper/211:56:572
259950,0migration/29145-21missed_timers11:51:012
259950,0migration/27460-21pmu-power12:46:052
259950,0migration/223204-21kthreadcore07:40:592
259950,0migration/214112-21kthreadcore09:05:582
249950,0watchdog/28053-21kthreadcore08:16:002
249950,0watchdog/20-21swapper/211:45:572
249950,0watchdog/20-21swapper/209:16:002
224029950,0cyclictest0-21swapper/210:22:332
224029950,0cyclictest0-21swapper/209:31:192
224029950,0cyclictest0-21swapper/209:26:062
223949954,0cyclictest31045-21sed07:25:561
223949950,0cyclictest0-21swapper/112:22:391
223949950,0cyclictest0-21swapper/111:53:291
223939954,0cyclictest29826-21munin-node07:25:530
223939950,0cyclictest0-21swapper/012:36:060
223939950,0cyclictest0-21swapper/008:46:050
179950,0migration/19893-21fschecks_time10:20:551
179950,0migration/131630-21fschecks_time11:10:521
179950,0migration/128496-21unixbench_multi09:51:061
179950,0migration/126876-21switchtime12:01:071
179950,0migration/126498-21timerandwakeup10:46:091
179950,0migration/124671-21kthreadcore07:20:581
179950,0migration/121210-21kthreadcore09:10:561
179950,0migration/120004-21munin-node11:01:051
179950,0migration/118014-21kthreadcore11:20:591
179950,0migration/113189-21switchtime10:01:081
169950,0watchdog/116538-21fschecks_time08:45:561
149950,0migration/09469-21smart_sda11:51:050
149950,0migration/09278-21kthreadcore12:11:000
149950,0migration/06469-21sh12:27:560
149950,0migration/031835-21kthreadcore10:50:590
149950,0migration/027132-21kthreadcore12:41:000
149950,0migration/026675-21kthreadcore10:10:580
149950,0migration/026211-21sh09:31:350
149950,0migration/026000-21taskset08:26:560
149950,0migration/025870-21kthreadcore11:05:590
149950,0migration/023329-21fschecks_count12:20:550
149950,0migration/022782-21kthreadcore12:00:590
149950,0migration/020879-21kthreadcore11:21:000
149950,0migration/01952-21fschecks_time07:50:560
149950,0migration/018808-21fschecks_time11:40:540
149950,0migration/018049-21missed_timers08:21:000
149950,0migration/017835-21turbostat.cron11:40:360
149950,0migration/017235-21kthreadcore11:56:000
149950,0migration/016773-21irqcore10:05:580
149950,0migration/015801-21kthreadcore11:01:000
149950,0migration/013265-21taskset09:45:510
149950,0migration/012014-21kthreadcore10:01:000
149950,0migration/01199-21kthreadcore12:06:000
149950,0migration/011637-21kthreadcore07:55:580
149950,0migration/011554-21taskset07:33:520
149950,0migration/011198-21munin-node08:16:070
339940,0migration/326564-21taskset08:30:513
339940,0migration/31917-21kthreadcore08:10:593
329940,0watchdog/331933-21kthreadcore09:16:003
329940,0watchdog/30-21swapper/309:10:563
29815040,0irq/29-eth0-tx-4947-21munin-node10:56:022
29815040,0irq/29-eth0-tx-0-21swapper/212:41:252
29815040,0irq/29-eth0-tx-0-21swapper/211:06:262
29815040,0irq/29-eth0-tx-0-21swapper/209:56:012
29815040,0irq/29-eth0-tx-0-21swapper/209:50:442
29815040,0irq/29-eth0-tx-0-21swapper/009:15:540
29805040,0irq/28-eth0-rx-0-21swapper/310:53:363
259940,0migration/23832-21kthreadcore08:35:582
259940,0migration/23487-21kthreadcore07:51:002
259940,0migration/228430-21latency07:20:592
259940,0migration/22212-21missed_timers10:51:012
259940,0migration/220356-21kthreadcore11:40:582
259940,0migration/211136-21kthreadcore11:16:002
249940,0watchdog/227684-21tr08:51:002
249940,0watchdog/224851-21grep08:26:002
249940,0watchdog/20-21swapper/212:30:532
249940,0watchdog/20-21swapper/211:26:002
249940,0watchdog/20-21swapper/210:40:522
224029943,0cyclictest6281-21awk09:00:572
224029943,0cyclictest3524-21snmpd10:35:452
224029943,0cyclictest3524-21snmpd08:21:442
224029943,0cyclictest3524-21snmpd08:09:442
224029943,0cyclictest3524-21snmpd08:02:442
224029943,0cyclictest3524-21snmpd07:46:142
224029943,0cyclictest3524-21snmpd07:35:442
224029943,0cyclictest31349-21awk08:55:572
224029943,0cyclictest2829-21awk09:20:582
224029943,0cyclictest27716-21awk08:30:572
224029943,0cyclictest27436-21awk10:30:572
224029943,0cyclictest1368-21awk10:15:582
223949944,0cyclictest18519-21munin-node11:56:091
223949944,0cyclictest0-21swapper/111:40:521
223949944,0cyclictest0-21swapper/110:43:101
223949943,0cyclictest3571-21lldpd12:34:161
223949943,0cyclictest3524-21snmpd12:41:011
223949943,0cyclictest3524-21snmpd12:08:461
223949943,0cyclictest3524-21snmpd11:35:451
223949943,0cyclictest3524-21snmpd11:30:451
223949943,0cyclictest3524-21snmpd10:38:451
223949943,0cyclictest3524-21snmpd10:05:451
223949943,0cyclictest3524-21snmpd09:05:451
223949943,0cyclictest3524-21snmpd09:04:151
223949943,0cyclictest3524-21snmpd08:38:151
223939943,0cyclictest6062-21awk10:55:560
223939943,0cyclictest3571-21lldpd12:32:160
223939943,0cyclictest3524-21snmpd08:05:440
223939943,0cyclictest31606-21awk09:55:580
223939943,0cyclictest29310-21awk09:35:570
223939943,0cyclictest23010-21awk09:50:560
223939943,0cyclictest16762-21awk08:00:570
179940,0migration/19905-21kthreadcore11:16:001
179940,0migration/17276-21kthreadcore09:40:591
179940,0migration/17031-21kthreadcore07:30:581
179940,0migration/14019-21kthreadcore09:20:591
179940,0migration/132604-21kthreadcore09:56:001
179940,0migration/130575-21kthreadcore10:30:591
179940,0migration/130380-21kthreadcore10:50:591
179940,0migration/127786-21kthreadcore11:06:001
179940,0migration/127412-21fschecks_count09:15:551
179940,0migration/125961-21taskset08:26:291
179940,0migration/125042-21munin-node11:25:561
179940,0migration/124137-21aten2.4-expect10:10:521
179940,0migration/121420-21latency08:00:591
179940,0migration/118765-21taskset08:21:371
179940,0migration/115424-21kthreadcore07:35:591
179940,0migration/112361-21kthreadcore08:40:591
179940,0migration/11084-21latency_hist12:45:421
169940,0watchdog/18055-21kthreadcore08:16:001
169940,0watchdog/14377-21kthreadcore12:26:011
169940,0watchdog/127874-21if_err_eth1.211:45:571
169940,0watchdog/127738-21kthreadcore08:06:001
169940,0watchdog/126567-21kthreadcore08:51:001
169940,0watchdog/120157-21tune2fs09:30:561
169940,0watchdog/115713-21tr09:46:001
169940,0watchdog/111146-21kthreadcore12:11:011
149940,0migration/08960-21kthreadcore09:00:590
149940,0migration/08427-21runrttasks10:19:480
149940,0migration/032553-21sh11:29:400
149940,0migration/028392-21kthreadcore08:51:000
149940,0migration/028308-21kthreadcore10:30:590
8305030,0irq/26-0000:00:0-21swapper/308:36:163
29805030,0irq/28-eth0-rx-0-21swapper/308:03:173
29805030,0irq/28-eth0-rx-0-21swapper/307:57:053
29805030,0irq/28-eth0-rx-0-21swapper/307:31:013
249930,0watchdog/20-21swapper/208:11:002
249930,0watchdog/20-21swapper/207:25:522
224029932,0cyclictest8672-21tr07:55:532
224029932,0cyclictest5780-21awk07:30:562
224029932,0cyclictest22075-21sensors08:46:052
224029932,0cyclictest20672-21awk09:10:542
224029931,0cyclictest10433-21kthreadcore08:40:582
223949933,0cyclictest0-21swapper/109:36:091
223949932,0cyclictest9620-21irqcore07:55:571
223949932,0cyclictest31095-21awk08:10:571
223949932,0cyclictest30327-21aten2.4-expect08:55:531
223949932,0cyclictest27614-21awk08:30:561
223949932,0cyclictest27414-21awk07:45:571
223949932,0cyclictest20335-21irqcore07:40:581
223939933,0cyclictest2328-21awk12:45:590
223939933,0cyclictest0-21swapper/012:17:590
223939932,0cyclictest7722-21grep10:36:000
223939932,0cyclictest7193-21grep11:31:030
223939932,0cyclictest3524-21snmpd11:13:500
223939932,0cyclictest21164-21awk10:45:590
223939930,0cyclictest11952-21munin-node07:36:020
169930,0watchdog/10-21swapper/112:35:491
169930,0watchdog/10-21swapper/109:26:001
149930,0migration/018477-21runrttasks09:29:260
223939921,0cyclictest26549-21date08:30:410
223939921,0cyclictest0-21swapper/010:40:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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