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2026-07-15 - 04:24
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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 Wed Jul 15, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2463125646,0sleep30-21swapper/319:24:183
2484923426,0sleep20-21swapper/219:26:502
2469023324,0sleep10-21swapper/119:25:011
2455223329,0sleep00-21swapper/019:23:230
249969977,0cyclictest0-21swapper/221:28:092
339960,0migration/330518-21sh22:56:143
339960,0migration/325778-21sh22:15:463
339960,0migration/319778-21sh22:31:393
339960,0migration/318032-21sh00:40:083
339960,0migration/313962-21sh00:01:373
29815060,0irq/29-eth0-tx-31065-40yum-updatesd-he19:28:010
29815060,0irq/29-eth0-tx-14706-21munin-node20:28:060
29805060,0irq/28-eth0-rx-3919-21awk23:53:093
27160,0ktimersoftd/20-21swapper/223:50:512
259960,0migration/210113-21sh22:23:492
249949960,0cyclictest0-21swapper/021:58:020
149960,0migration/03978-21sh22:39:390
149960,0migration/020382-21sh23:46:440
149960,0migration/015498-21kthreadcore23:23:010
149960,0migration/013767-21gltestperf21:32:560
149960,0migration/011858-21fschecks_time20:47:560
8305050,0irq/26-0000:00:0-21swapper/219:37:412
339950,0migration/37321-21kthreadcore23:38:013
339950,0migration/35869-21kthreadcore20:43:003
339950,0migration/34857-21kthreadcore22:03:003
339950,0migration/330762-21kthreadcore19:28:013
339950,0migration/327886-21fschecks_count23:32:553
339950,0migration/327679-21kthreadcore20:58:003
339950,0migration/325875-21fschecks_time23:12:563
339950,0migration/325230-21taskset20:56:053
339950,0migration/321582-21taskset20:32:033
339950,0migration/320688-21kthreadcore21:13:013
339950,0migration/320412-21kthreadcore23:28:013
339950,0migration/319431-21munin-node00:42:553
339950,0migration/318964-21unixbench_multi23:43:093
339950,0migration/315575-21taskset23:06:233
339950,0migration/315281-21fschecks_time19:42:553
339950,0migration/311025-21kthreadcore22:43:013
339950,0migration/310775-21timerwakeupswit21:28:083
329950,0watchdog/34847-21if_eth119:57:563
329950,0watchdog/33564-21diskstats22:22:573
329950,0watchdog/330056-21ssh22:37:573
329950,0watchdog/329117-21kthreadcore00:28:013
329950,0watchdog/328436-21kthreadcore20:13:003
329950,0watchdog/326527-21kthreadcore20:33:003
329950,0watchdog/317565-21cat21:53:003
329950,0watchdog/316350-21kthreadcore20:48:003
329950,0watchdog/30-21swapper/322:08:003
29815050,0irq/29-eth0-tx-7691-21munin-node23:02:562
29815050,0irq/29-eth0-tx-7460-21df_inode21:47:552
29815050,0irq/29-eth0-tx-365-21munin-node21:02:530
29815050,0irq/29-eth0-tx-32609-21munin-node20:17:530
29815050,0irq/29-eth0-tx-23464-21cut22:52:542
29815050,0irq/29-eth0-tx-19521-21perl23:27:572
29815050,0irq/29-eth0-tx-11825-21munin-node22:27:592
29815050,0irq/29-eth0-tx-0-21swapper/223:41:082
29815050,0irq/29-eth0-tx-0-21swapper/222:47:532
29815050,0irq/29-eth0-tx-0-21swapper/222:16:342
29815050,0irq/29-eth0-tx-0-21swapper/221:59:232
29815050,0irq/29-eth0-tx-0-21swapper/221:37:532
29815050,0irq/29-eth0-tx-0-21swapper/021:28:030
29815050,0irq/29-eth0-tx-0-21swapper/020:47:050
29805050,0irq/28-eth0-rx-8350-21aten2.4-expect00:17:553
29805050,0irq/28-eth0-rx-4861-21grep00:33:023
29805050,0irq/28-eth0-rx-3524-21snmpd22:49:553
29805050,0irq/28-eth0-rx-30375-21tr22:18:003
29805050,0irq/28-eth0-rx-28476-21cut21:58:003
29805050,0irq/28-eth0-rx-23281-21munin-node00:07:563
29805050,0irq/28-eth0-rx-18147-21ssh00:22:593
29805050,0irq/28-eth0-rx-14127-21timerandwakeup21:08:083
29805050,0irq/28-eth0-rx-0-21swapper/323:23:013
29805050,0irq/28-eth0-rx-0-21swapper/323:10:113
29805050,0irq/28-eth0-rx-0-21swapper/322:32:583
29805050,0irq/28-eth0-rx-0-21swapper/321:42:593
29805050,0irq/28-eth0-rx-0-21swapper/321:38:063
29805050,0irq/28-eth0-rx-0-21swapper/321:36:043
29805050,0irq/28-eth0-rx-0-21swapper/319:47:583
29805050,0irq/28-eth0-rx-0-21swapper/300:47:543
29805050,0irq/28-eth0-rx-0-21swapper/300:03:463
259950,0migration/27589-21aten_r1power_fr20:22:522
259950,0migration/27452-21ntp_offset23:18:022
259950,0migration/230596-21taskset00:09:542
259950,0migration/229491-21fschecks_count19:52:552
259950,0migration/219889-21kthreadcore23:08:012
259950,0migration/217219-21munin-node20:48:032
259950,0migration/215173-21run-parts00:18:422
249969955,0cyclictest0-21swapper/220:18:082
249959955,0cyclictest0-21swapper/123:30:561
249959955,0cyclictest0-21swapper/122:02:011
249959955,0cyclictest0-21swapper/121:30:481
249959955,0cyclictest0-21swapper/100:34:571
249959950,0cyclictest0-21swapper/122:22:401
249959950,0cyclictest0-21swapper/121:33:481
249959950,0cyclictest0-21swapper/121:18:111
249959950,0cyclictest0-21swapper/120:17:581
249959950,0cyclictest0-21swapper/100:20:361
249959950,0cyclictest0-21swapper/100:11:271
249949955,0cyclictest0-21swapper/023:40:020
249949955,0cyclictest0-21swapper/022:25:090
249949955,0cyclictest0-21swapper/000:39:190
249949950,0cyclictest0-21swapper/023:12:170
249949950,0cyclictest0-21swapper/021:55:020
249949950,0cyclictest0-21swapper/000:11:530
169950,0watchdog/130627-21gltestperf23:52:571
169950,0watchdog/124565-21cut00:43:011
149950,0migration/09007-21sh00:34:110
149950,0migration/08493-21sh22:05:440
149950,0migration/07560-21kthreadcore19:57:580
149950,0migration/06559-21kthreadcore00:53:010
149950,0migration/06280-21runrttasks19:33:030
149950,0migration/05305-21taskset23:56:390
149950,0migration/0467-21kthreadcore20:38:000
149950,0migration/03883-21taskset21:26:010
149950,0migration/032130-21taskset20:14:560
149950,0migration/029121-21kthreadcore20:58:000
149950,0migration/027798-21kthreadcore21:18:020
149950,0migration/027496-21sh00:47:230
149950,0migration/025370-21sh22:14:390
149950,0migration/024947-21munin-node23:28:050
149950,0migration/023611-21taskset00:23:100
149950,0migration/023354-21kthreadcore21:37:590
149950,0migration/02297-21sh00:48:240
149950,0migration/021852-21kthreadcore20:07:590
149950,0migration/017383-21kthreadcore00:02:590
149950,0migration/014917-21kthreadcore22:28:010
149950,0migration/014668-21taskset23:03:530
149950,0migration/013253-21kthreadcore20:02:590
149950,0migration/011307-21kthreadcore21:08:010
149950,0migration/011008-21kthreadcore22:43:010
149950,0migration/010006-21kthreadcore00:18:010
8305040,0irq/26-0000:00:0-21swapper/220:37:582
339940,0migration/38122-21fschecks_time19:37:563
339940,0migration/35564-21kthreadcore19:33:003
339940,0migration/34502-21kthreadcore23:17:593
339940,0migration/332298-21kthreadcore19:52:593
339940,0migration/313201-21kthreadcore20:02:593
329940,0watchdog/30-21swapper/323:48:013
329940,0watchdog/30-21swapper/320:38:003
29815040,0irq/29-eth0-tx-27898-21munin-node00:47:582
29815040,0irq/29-eth0-tx-19224-21kthreadcore00:02:592
29815040,0irq/29-eth0-tx-0-21swapper/223:58:492
29815040,0irq/29-eth0-tx-0-21swapper/223:52:522
29815040,0irq/29-eth0-tx-0-21swapper/223:42:462
29815040,0irq/29-eth0-tx-0-21swapper/223:32:512
29815040,0irq/29-eth0-tx-0-21swapper/223:12:542
29815040,0irq/29-eth0-tx-0-21swapper/222:57:532
29815040,0irq/29-eth0-tx-0-21swapper/222:43:182
29815040,0irq/29-eth0-tx-0-21swapper/222:10:222
29815040,0irq/29-eth0-tx-0-21swapper/222:02:572
29815040,0irq/29-eth0-tx-0-21swapper/221:43:002
29815040,0irq/29-eth0-tx-0-21swapper/019:52:570
29805040,0irq/28-eth0-rx-0-21swapper/322:58:003
29805040,0irq/28-eth0-rx-0-21swapper/321:48:033
29805040,0irq/28-eth0-rx-0-21swapper/300:53:003
29805040,0irq/28-eth0-rx-0-21swapper/300:12:593
259940,0migration/2880-21fschecks_time19:32:552
259940,0migration/226701-21latency_hist22:17:412
259940,0migration/225284-21kthreadcore21:18:012
259940,0migration/221522-21munin-node21:13:092
259940,0migration/218079-21latency_hist20:07:412
259940,0migration/216820-21kthreadcore21:33:002
259940,0migration/215786-21irqcore19:42:582
259940,0migration/211380-21fschecks_time00:37:562
249969943,0cyclictest3571-21lldpd20:58:202
249969943,0cyclictest3571-21lldpd20:27:502
249969943,0cyclictest3571-21lldpd00:22:552
249969943,0cyclictest30169-21awk22:37:572
249969943,0cyclictest23008-21awk20:32:582
249969940,0cyclictest1817-21munin-node00:32:582
249969940,0cyclictest0-21swapper/200:27:562
249959944,0cyclictest0-21swapper/121:42:471
249959943,0cyclictest8168-21awk21:47:581
249959943,0cyclictest3571-21lldpd22:37:541
249959943,0cyclictest3571-21lldpd22:30:241
249959943,0cyclictest3571-21lldpd21:25:541
249959943,0cyclictest3571-21lldpd20:34:501
249959943,0cyclictest3571-21lldpd19:50:491
249959943,0cyclictest3571-21lldpd00:48:261
249959943,0cyclictest3524-21snmpd23:18:591
249959943,0cyclictest3524-21snmpd22:33:131
249959943,0cyclictest3524-21snmpd00:05:141
249959943,0cyclictest32511-21awk22:57:581
249959943,0cyclictest3250-21irqbalance23:23:181
249959943,0cyclictest3250-21irqbalance22:52:481
249959943,0cyclictest3250-21irqbalance22:49:081
249959943,0cyclictest3250-21irqbalance22:24:081
249959943,0cyclictest3250-21irqbalance21:37:581
249959943,0cyclictest3250-21irqbalance00:28:081
249959943,0cyclictest26191-21awk23:12:581
249959943,0cyclictest12019-21awk20:02:571
249959943,0cyclictest11753-21awk00:37:581
249949944,0cyclictest0-21swapper/023:15:450
249949943,0cyclictest496-21awk00:12:580
249949943,0cyclictest3524-21snmpd23:59:590
249949943,0cyclictest22944-21awk20:32:570
249949940,0cyclictest0-21swapper/020:22:540
249949940,0cyclictest0-21swapper/019:52:400
249940,0watchdog/28558-21fschecks_time21:07:562
249940,0watchdog/24178-21ssh00:52:452
249940,0watchdog/221470-21grep20:53:002
249940,0watchdog/20-21swapper/223:22:532
249940,0watchdog/20-21swapper/222:32:572
249940,0watchdog/20-21swapper/221:53:002
249940,0watchdog/20-21swapper/220:43:002
249940,0watchdog/20-21swapper/220:13:002
249940,0watchdog/20-21swapper/220:03:002
249940,0watchdog/20-21swapper/219:57:562
249940,0watchdog/20-21swapper/200:43:012
249940,0watchdog/20-21swapper/200:13:012
179940,0migration/121292-21kthreadcore20:53:001
179940,0migration/120472-21kthreadcore23:08:011
179940,0migration/114044-21kthreadcore22:08:011
179940,0migration/111699-21kthreadcore23:03:011
169940,0watchdog/14793-21perl20:42:561
169940,0watchdog/13675-21ssh23:37:531
169940,0watchdog/132593-21kthreadcore20:38:001
169940,0watchdog/131895-21unixbench_multi20:13:081
169940,0watchdog/121131-21tr00:23:011
169940,0watchdog/116349-21cut20:48:001
169940,0watchdog/115839-21fschecks_time21:12:561
169940,0watchdog/113342-21hddtemp_smartct23:42:571
169940,0watchdog/11274-21python23:33:051
169940,0watchdog/10-21swapper/123:49:131
169940,0watchdog/10-21swapper/122:43:011
169940,0watchdog/10-21swapper/122:13:011
169940,0watchdog/10-21swapper/120:27:561
169940,0watchdog/10-21swapper/119:57:561
169940,0watchdog/10-21swapper/100:13:011
169940,0watchdog/10-21swapper/100:00:171
149940,0migration/024718-21kthreadcore22:33:010
149940,0migration/018349-21latency_hist20:52:410
149940,0migration/015657-21fschecks_time21:12:560
329930,0watchdog/30-21swapper/321:17:563
329930,0watchdog/30-21swapper/320:17:443
29805030,0irq/28-eth0-rx-0-21swapper/321:22:573
29805030,0irq/28-eth0-rx-0-21swapper/321:03:023
29805030,0irq/28-eth0-rx-0-21swapper/320:22:523
29805030,0irq/28-eth0-rx-0-21swapper/320:07:533
249969932,0cyclictest30504-21awk21:22:572
249969932,0cyclictest22736-21awk19:47:552
249959933,0cyclictest3571-21lldpd19:27:481
249959932,0cyclictest8539-21awk20:22:551
249959932,0cyclictest8488-21awk19:37:581
249959932,0cyclictest5289-21awk00:52:591
249959932,0cyclictest1169-21awk19:32:571
249959930,0cyclictest18585-21diskstats20:07:551
249949933,0cyclictest0-21swapper/022:48:290
249949932,0cyclictest8095-21awk21:47:570
249949932,0cyclictest7312-21munin-node19:38:020
249949932,0cyclictest5039-21tr22:58:020
249949932,0cyclictest31572-21awk21:42:570
249949932,0cyclictest27853-21awk22:17:570
249949932,0cyclictest26633-21awk00:27:580
249949932,0cyclictest2463-21awk23:17:570
249949932,0cyclictest21293-21tr23:47:550
249949932,0cyclictest1097-21ls23:33:030
249949932,0cyclictest10591-21awk22:07:580
249949930,0cyclictest0-21swapper/019:47:390
249930,0watchdog/20-21swapper/221:03:002
249930,0watchdog/20-21swapper/219:28:002
19130,0ktimersoftd/10-21swapper/119:55:441
169930,0watchdog/18557-21fschecks_time21:07:561
169930,0watchdog/10-21swapper/122:02:521
169930,0watchdog/10-21swapper/121:53:001
169930,0watchdog/10-21swapper/120:58:001
169930,0watchdog/10-21swapper/119:43:041
149930,0migration/030367-21runrttasks22:55:490
169920,0watchdog/10-21swapper/121:02:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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