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2026-04-18 - 16:16
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Sat Apr 18, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
875024939,0sleep30-21swapper/307:18:403
869524839,0sleep20-21swapper/207:18:032
858524127,0sleep00-21swapper/007:16:450
884423726,0sleep10-21swapper/107:19:461
8982991313,0cyclictest21583-21sensors12:05:540
89849960,0cyclictest20299-21diskmemload10:15:462
89849960,0cyclictest0-21swapper/209:33:222
89839960,0cyclictest0-21swapper/110:45:561
339960,0migration/38288-21kthreadcore09:30:503
339960,0migration/37732-21sh09:48:353
339960,0migration/326643-21ntp_offset09:20:533
339960,0migration/316001-21sh11:07:013
339960,0migration/310864-21runrttasks12:40:323
29815060,0irq/29-eth0-tx-23840-21munin-node08:15:480
29815060,0irq/29-eth0-tx-20324-21munin-node08:35:430
29815060,0irq/29-eth0-tx-16823-21munin-node08:55:490
29805060,0irq/28-eth0-rx-0-21swapper/311:30:443
149960,0migration/09116-21aten_r1power_vo11:05:450
149960,0migration/05633-21idleruntime10:25:470
149960,0migration/04433-21sh09:27:510
149960,0migration/03972-21sh10:24:360
149960,0migration/029810-21sh11:54:410
149960,0migration/026350-21kthreadcore07:30:490
149960,0migration/026160-21timerwakeupswit11:30:560
89849955,0cyclictest0-21swapper/212:43:492
89849955,0cyclictest0-21swapper/212:29:472
89849955,0cyclictest0-21swapper/212:22:222
89849955,0cyclictest0-21swapper/212:14:112
89849955,0cyclictest0-21swapper/211:14:062
89849955,0cyclictest0-21swapper/210:45:442
89849954,0cyclictest3524-21snmpd08:25:522
89849950,0cyclictest0-21swapper/211:37:362
89849950,0cyclictest0-21swapper/210:04:252
89849950,0cyclictest0-21swapper/209:52:172
89839955,0cyclictest0-21swapper/110:28:071
89839955,0cyclictest0-21swapper/110:01:571
89839954,0cyclictest23071-21ssh10:53:401
89839950,0cyclictest0-21swapper/111:19:501
89839950,0cyclictest0-21swapper/110:37:251
89839950,0cyclictest0-21swapper/109:23:101
89829955,0cyclictest0-21swapper/011:43:240
89829950,0cyclictest0-21swapper/012:25:580
8305050,0irq/26-0000:00:8843-21sed11:05:312
35150,0ktimersoftd/30-21swapper/310:09:193
339950,0migration/39886-21cpuspeed_turbos08:50:423
339950,0migration/39318-21aten_r1power_po07:20:423
339950,0migration/37922-21kthreadcore11:20:493
339950,0migration/33957-21kthreadcore08:00:493
339950,0migration/332281-21kthreadcore10:40:483
339950,0migration/331822-21kthreadcore07:55:503
339950,0migration/331566-21kthreadcore10:20:483
339950,0migration/329141-21kthreadcore12:10:503
339950,0migration/328769-21kthreadcore09:40:493
339950,0migration/323729-21latency_hist08:15:313
339950,0migration/322048-21kthreadcore08:55:503
339950,0migration/320713-21munin-node08:35:443
339950,0migration/320174-21fschecks_time12:45:463
339950,0migration/319104-21rt-features07:45:523
339950,0migration/318304-21kthreadcore12:05:493
339950,0migration/317557-21aten_r1power_cu11:10:423
339950,0migration/312498-21kthreadcore12:00:503
339950,0migration/312292-21sendmail_mailst09:10:543
339950,0migration/310251-21taskset12:39:263
329950,0watchdog/37793-21kthreadcore11:40:473
329950,0watchdog/327897-21netstat10:35:503
329950,0watchdog/326250-21kthreadcore08:15:503
329950,0watchdog/321202-21sshd10:34:263
329950,0watchdog/321100-21ps10:15:463
329950,0watchdog/318409-21munin-node12:25:473
329950,0watchdog/316478-21if_eth010:50:463
329950,0watchdog/314321-21iostat_ios08:30:463
329950,0watchdog/30-21swapper/310:00:503
329950,0watchdog/30-21swapper/307:35:463
29815050,0irq/29-eth0-tx-5716-21munin-node07:40:460
29815050,0irq/29-eth0-tx-20786-21ssh09:20:450
29815050,0irq/29-eth0-tx-20299-21diskmemload11:29:062
29815050,0irq/29-eth0-tx-13325-21munin-node09:15:490
29815050,0irq/29-eth0-tx-0-21swapper/007:35:440
29805050,0irq/28-eth0-rx-29701-21diskstats09:25:453
29805050,0irq/28-eth0-rx-23637-21kthreadcore07:50:503
29805050,0irq/28-eth0-rx-19450-21taskset11:45:533
29805050,0irq/28-eth0-rx-13878-21kthreadcore09:50:493
29805050,0irq/28-eth0-rx-12444-21irqcore11:25:493
29805050,0irq/28-eth0-rx-0-21swapper/312:30:543
29805050,0irq/28-eth0-rx-0-21swapper/312:15:483
29805050,0irq/28-eth0-rx-0-21swapper/311:57:233
29805050,0irq/28-eth0-rx-0-21swapper/311:50:493
29805050,0irq/28-eth0-rx-0-21swapper/311:38:053
29805050,0irq/28-eth0-rx-0-21swapper/311:17:093
29805050,0irq/28-eth0-rx-0-21swapper/311:02:043
29805050,0irq/28-eth0-rx-0-21swapper/310:57:523
29805050,0irq/28-eth0-rx-0-21swapper/310:45:523
29805050,0irq/28-eth0-rx-0-21swapper/310:25:493
29805050,0irq/28-eth0-rx-0-21swapper/310:00:093
249950,0watchdog/231136-21kthreadcore07:55:502
249950,0watchdog/230164-21fschecks_time09:25:462
249950,0watchdog/227785-21missed_timers11:50:512
179950,0migration/19844-21sh10:08:071
179950,0migration/13915-21irqrtprio11:20:481
179950,0migration/130660-21sh12:11:151
179950,0migration/12732-21kthreadcore09:05:501
179950,0migration/124195-21taskset09:56:201
179950,0migration/120864-21taskset10:33:311
179950,0migration/119102-21sh10:14:411
179950,0migration/115382-21kthreadcore07:45:481
179950,0migration/114478-21kthreadcore11:25:501
179950,0migration/110923-21irqrtprio08:05:471
169950,0watchdog/19883-21head11:05:461
169950,0watchdog/16275-21grep07:40:461
149950,0migration/09339-21aten_r1power_vo07:20:420
149950,0migration/08670-21kthreadcore08:25:490
149950,0migration/0728-21kthreadcore10:40:490
149950,0migration/06973-21cpuspeed_turbos10:45:450
149950,0migration/05430-21kthreadcore11:20:490
149950,0migration/05147-21kthreadcore08:00:490
149950,0migration/0453-21munin-node12:15:460
149950,0migration/03593-21kthreadcore09:05:500
149950,0migration/03320-21kthreadcore11:55:500
149950,0migration/030178-21sh10:40:310
149950,0migration/029932-21kthreadcore07:55:490
149950,0migration/029897-21kthreadcore11:35:490
149950,0migration/029265-21kthreadcore10:55:490
149950,0migration/026301-21rt-features07:50:530
149950,0migration/024604-21fschecks_count09:00:450
149950,0migration/024421-21kthreadcore12:45:510
149950,0migration/021541-21taskset10:35:240
149950,0migration/020922-21kthreadcore11:10:490
149950,0migration/017216-21latency_hist09:55:310
149950,0migration/013828-21taskset12:02:210
149950,0migration/011746-21fschecks_time10:10:450
149950,0migration/011146-21irqrtprio08:50:460
149950,0migration/010813-21kthreadcore12:20:490
89849943,0cyclictest7258-21awk09:10:482
89849943,0cyclictest3571-21lldpd12:33:562
89849943,0cyclictest3571-21lldpd12:01:262
89849943,0cyclictest3524-21snmpd12:36:242
89849943,0cyclictest3524-21snmpd09:06:222
89849943,0cyclictest3524-21snmpd08:40:072
89849943,0cyclictest3524-21snmpd08:08:222
89849943,0cyclictest3524-21snmpd07:51:522
89849943,0cyclictest3524-21snmpd07:22:062
89849943,0cyclictest3234-21awk08:00:472
89849943,0cyclictest32089-21awk08:20:462
89849943,0cyclictest27345-21awk11:15:482
89849943,0cyclictest25092-21awk09:00:462
89849943,0cyclictest23795-21sadc09:00:302
89849943,0cyclictest22360-21strings07:25:512
89849943,0cyclictest16429-21awk10:50:462
89849943,0cyclictest14014-21awk07:45:462
89849943,0cyclictest10682-21awk08:50:442
89849940,0cyclictest0-21swapper/209:40:502
89839944,0cyclictest0-21swapper/111:49:091
89839944,0cyclictest0-21swapper/109:51:421
89839944,0cyclictest0-21swapper/109:31:411
89839943,0cyclictest9976-21awk12:20:481
89839943,0cyclictest7085-21awk08:25:481
89839943,0cyclictest3524-21snmpd10:40:381
89839943,0cyclictest22871-21awk11:50:471
89839943,0cyclictest21178-21awk07:50:471
89839943,0cyclictest20762-21awk11:30:461
89839943,0cyclictest18622-21awk11:10:471
89839943,0cyclictest1353-21awk11:00:471
89839943,0cyclictest10346-21awk07:20:461
89829944,0cyclictest0-21swapper/010:03:270
89829943,0cyclictest3571-21lldpd10:52:250
89829943,0cyclictest3524-21snmpd08:46:520
89829943,0cyclictest12048-21awk12:40:480
89829943,0cyclictest10523-21awk08:05:460
89829940,0cyclictest3137-21kworker/0:010:20:310
89829940,0cyclictest0-21swapper/012:35:160
339940,0migration/39166-21taskset08:47:433
339940,0migration/34164-21kthreadcore08:20:503
339940,0migration/326943-21kthreadcore07:30:493
339940,0migration/324477-21fschecks_count09:00:443
339940,0migration/318194-21kthreadcore09:35:483
339940,0migration/317038-21kthreadcore09:15:503
329940,0watchdog/310997-21kthreadcore08:25:503
329940,0watchdog/30-21swapper/312:20:553
329940,0watchdog/30-21swapper/309:05:503
329940,0watchdog/30-21swapper/308:40:463
329940,0watchdog/30-21swapper/307:25:503
29815040,0irq/29-eth0-tx-3534-21sshd08:14:260
29815040,0irq/29-eth0-tx-32313-21ssh09:45:352
29815040,0irq/29-eth0-tx-20299-21diskmemload10:25:322
29815040,0irq/29-eth0-tx-18090-21ssh10:11:532
29815040,0irq/29-eth0-tx-0-21swapper/212:16:002
29815040,0irq/29-eth0-tx-0-21swapper/211:30:432
29815040,0irq/29-eth0-tx-0-21swapper/211:20:542
29815040,0irq/29-eth0-tx-0-21swapper/210:24:272
29815040,0irq/29-eth0-tx-0-21swapper/008:30:500
29815040,0irq/29-eth0-tx-0-21swapper/007:25:430
29805040,0irq/28-eth0-rx-0-21swapper/310:11:033
29805040,0irq/28-eth0-rx-0-21swapper/307:40:463
259940,0migration/23271-21kthreadcore11:00:492
259940,0migration/227647-21sh10:55:492
259940,0migration/226583-21kthreadcore10:35:492
259940,0migration/221677-21munin-node09:20:482
259940,0migration/220239-21fschecks_time12:45:462
259940,0migration/218414-21kthreadcore12:05:492
259940,0migration/217892-21kthreadcore11:45:492
259940,0migration/216237-21kthreadcore09:15:502
259940,0migration/213287-21aten_r1power_en10:30:422
259940,0migration/21191-21pmu-power08:40:532
249940,0watchdog/27792-21kthreadcore11:40:472
249940,0watchdog/25984-21ssh10:44:142
249940,0watchdog/231566-21tune2fs07:35:462
249940,0watchdog/221763-21ssh09:36:582
249940,0watchdog/220299-21diskmemload11:55:352
249940,0watchdog/20-21swapper/208:15:502
249940,0watchdog/20-21swapper/208:11:542
249940,0watchdog/20-21swapper/207:40:502
179940,0migration/16712-21kthreadcore08:45:501
179940,0migration/1400-21kthreadcore11:35:501
179940,0migration/13594-21kthreadcore08:20:491
179940,0migration/132625-21kthreadcore11:55:491
179940,0migration/130551-21kthreadcore12:30:501
179940,0migration/12994-21kthreadcore09:45:501
179940,0migration/128962-21kthreadcore08:15:511
179940,0migration/125891-21kthreadcore09:40:481
179940,0migration/119327-21munin-node09:15:531
179940,0migration/118233-21irqrtprio08:55:491
179940,0migration/114488-21latency_hist09:35:311
179940,0migration/113194-21kthreadcore12:40:491
179940,0migration/112585-21load12:00:501
169940,0watchdog/15313-21perl11:40:431
169940,0watchdog/127546-21runrttasks08:40:421
169940,0watchdog/126498-21ssh10:16:221
169940,0watchdog/121621-21kthreadcore07:25:501
169940,0watchdog/10-21swapper/112:45:511
169940,0watchdog/10-21swapper/112:18:231
169940,0watchdog/10-21swapper/109:25:461
149940,0migration/08068-21runrttasks11:03:480
149940,0migration/025850-21kthreadcore09:40:480
149940,0migration/021470-21kthreadcore09:56:010
149940,0migration/019663-21kthreadcore09:35:490
149940,0migration/01645-21kthreadcore09:45:490
149940,0migration/013585-21fschecks_count07:45:440
149940,0migration/011587-21kthreadcore09:10:500
89849933,0cyclictest3571-21lldpd07:33:222
89849930,0cyclictest5390-21grep10:05:492
89849930,0cyclictest13913-21perl08:30:432
89839932,0cyclictest7176-21awk09:10:481
89839932,0cyclictest27342-21munin-node07:55:441
89839932,0cyclictest25107-21awk09:00:471
89839932,0cyclictest24790-21awk07:30:471
89839932,0cyclictest21550-21gzip12:05:531
89839932,0cyclictest17559-21grep08:10:451
89829932,0cyclictest3524-21snmpd12:39:100
89829932,0cyclictest32192-21awk08:20:470
89829932,0cyclictest15882-21grep11:45:490
89829932,0cyclictest14664-21grep11:25:500
89829931,0cyclictest25568-21kthreadcore12:10:490
89829930,0cyclictest6130-21grep10:05:490
89829930,0cyclictest5748-21sed09:30:310
89829930,0cyclictest28747-21iostat_ios08:40:490
89829930,0cyclictest26890-21perl11:15:460
8305030,0irq/26-0000:00:0-21swapper/208:45:312
29815030,0irq/29-eth0-tx-0-21swapper/209:55:472
29805030,0irq/28-eth0-rx-0-21swapper/308:05:343
179930,0migration/14714-21kthreadcore12:35:491
179930,0migration/129589-21kthreadcore10:55:491
169930,0watchdog/10-21swapper/112:25:471
169930,0watchdog/10-21swapper/110:22:381
169930,0watchdog/10-21swapper/108:50:461
169930,0watchdog/10-21swapper/107:35:461
169920,0watchdog/10-21swapper/108:35:341
169920,0watchdog/10-21swapper/108:30:341
169920,0watchdog/10-21swapper/108:00:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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