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2026-06-22 - 03:57
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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 Jun 22, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1574924940,0sleep20-21swapper/219:20:502
2257824738,0sleep10-21swapper/119:24:261
2236024637,0sleep30-21swapper/319:21:553
2261922925,0sleep00-21swapper/019:24:570
8305060,0irq/26-0000:00:26672-21crond20:35:493
4160,0ktimersoftd/00-21swapper/000:25:100
35160,0ktimersoftd/30-21swapper/323:13:453
35160,0ktimersoftd/30-21swapper/321:26:133
339960,0migration/38243-21sh22:22:443
339960,0migration/36962-21sh00:32:513
339960,0migration/36292-21sh23:17:173
339960,0migration/321379-21sh23:07:353
339960,0migration/310756-21sh22:43:143
29815060,0irq/29-eth0-tx-6409-21irqstats21:46:062
29805060,0irq/28-eth0-rx-26360-21iostat_ios23:31:053
29805060,0irq/28-eth0-rx-15722-21awk22:10:493
29805060,0irq/28-eth0-rx-12441-21munin-node00:01:013
227679965,0cyclictest24160-21tr22:51:081
227679960,0cyclictest0-21swapper/122:36:011
227669966,0cyclictest0-21swapper/023:55:090
227669966,0cyclictest0-21swapper/000:02:430
149960,0migration/030679-21sh23:14:220
149960,0migration/012851-21sh00:16:260
4150,0ktimersoftd/00-21swapper/019:46:160
339950,0migration/332459-21kthreadcore00:11:073
339950,0migration/331212-21munin-node22:01:013
339950,0migration/331142-21kthreadcore22:56:073
339950,0migration/33026-21if_eth000:51:053
339950,0migration/330103-21kthreadcore19:51:083
339950,0migration/329062-21taskset20:11:083
339950,0migration/326633-21taskset21:17:293
339950,0migration/324657-21kthreadcore21:56:073
339950,0migration/323413-21kthreadcore21:36:093
339950,0migration/321385-21fschecks_time22:51:043
339950,0migration/320842-21kthreadcore00:41:093
339950,0migration/319431-21taskset21:13:053
339950,0migration/318405-21aten_r1power_fr22:31:023
339950,0migration/317078-21munin-node22:11:043
339950,0migration/310988-21kthreadcore00:16:123
329950,0watchdog/326932-21kthreadcore00:26:093
329950,0watchdog/316228-21munin-node23:41:093
329950,0watchdog/30-21swapper/319:46:003
329950,0watchdog/30-21swapper/300:22:013
29815050,0irq/29-eth0-tx-30181-21munin-node19:31:040
29815050,0irq/29-eth0-tx-24748-21tr23:11:072
29815050,0irq/29-eth0-tx-2061-21jbd2/md0-800:05:492
29815050,0irq/29-eth0-tx-18741-21sendmail_mailqu00:01:122
29815050,0irq/29-eth0-tx-15327-21if_err_eth1.323:06:062
29815050,0irq/29-eth0-tx-0-21swapper/200:50:342
29815050,0irq/29-eth0-tx-0-21swapper/021:23:330
29815050,0irq/29-eth0-tx-0-21swapper/021:15:190
29815050,0irq/29-eth0-tx-0-21swapper/019:51:110
29815050,0irq/29-eth0-tx-0-21swapper/019:29:590
29805050,0irq/28-eth0-rx-4781-21ssh21:45:523
29805050,0irq/28-eth0-rx-3932-21kthreadcore23:36:093
29805050,0irq/28-eth0-rx-3552-21lldpd21:45:033
29805050,0irq/28-eth0-rx-31846-21seq22:17:433
29805050,0irq/28-eth0-rx-27200-21kthreadcore00:46:083
29805050,0irq/28-eth0-rx-2589-21ssh23:53:313
29805050,0irq/28-eth0-rx-209762sleep321:52:473
29805050,0irq/28-eth0-rx-15779-21ntpq22:26:103
29805050,0irq/28-eth0-rx-0-21swapper/323:47:273
29805050,0irq/28-eth0-rx-0-21swapper/323:26:243
29805050,0irq/28-eth0-rx-0-21swapper/323:21:453
29805050,0irq/28-eth0-rx-0-21swapper/322:36:003
29805050,0irq/28-eth0-rx-0-21swapper/320:51:013
29805050,0irq/28-eth0-rx-0-21swapper/320:41:023
29805050,0irq/28-eth0-rx-0-21swapper/320:26:073
29805050,0irq/28-eth0-rx-0-21swapper/300:38:303
29805050,0irq/28-eth0-rx-0-21swapper/300:09:413
27150,0ktimersoftd/20-21swapper/219:46:162
27150,0ktimersoftd/20-21swapper/200:25:102
249950,0watchdog/28415-21aten_r1power_fr00:36:012
227689950,0cyclictest0-21swapper/222:16:032
227669955,0cyclictest0-21swapper/023:42:130
227669955,0cyclictest0-21swapper/022:48:370
227669955,0cyclictest0-21swapper/019:36:070
227669955,0cyclictest0-21swapper/000:47:200
227669950,0cyclictest0-21swapper/023:39:320
227669950,0cyclictest0-21swapper/023:21:440
227669950,0cyclictest0-21swapper/023:01:520
227669950,0cyclictest0-21swapper/022:30:580
227669950,0cyclictest0-21swapper/020:25:280
227669950,0cyclictest0-21swapper/000:31:440
19150,0ktimersoftd/10-21swapper/119:46:161
19150,0ktimersoftd/10-21swapper/100:25:101
179950,0migration/1655-21if_eth000:31:041
179950,0migration/13290-21aten_r1power_cu22:41:001
179950,0migration/126243-21timerandwakeup21:16:131
179950,0migration/119165-21taskset00:01:181
179950,0migration/118558-21kthreadcore20:51:051
179950,0migration/118053-21irqrtprio23:26:061
179950,0migration/111415-21taskset23:58:451
169950,0watchdog/117186-21ssh22:11:041
149950,0migration/07849-21munin-node20:41:120
149950,0migration/07628-21kthreadcore21:06:060
149950,0migration/03495-21kthreadcore20:16:070
149950,0migration/031746-21munin-node23:16:030
149950,0migration/02997-21idleruntime21:26:040
149950,0migration/026784-21kthreadcore00:06:080
149950,0migration/025361-21fschecks_time22:16:030
149950,0migration/025138-21kthreadcore00:26:080
149950,0migration/022243-21sh23:09:580
149950,0migration/018745-21kthreadcore20:51:050
149950,0migration/018594-21runrttasks21:34:220
149950,0migration/017615-21sh22:29:430
149950,0migration/017518-21kthreadcore20:26:070
149950,0migration/015005-21irqcore21:51:070
149950,0migration/01405-21taskset22:36:350
149950,0migration/012213-21kthreadcore20:01:070
149950,0migration/010210-21kthreadcore00:36:070
8305040,0irq/26-0000:00:9367-21latency_hist22:25:502
339940,0migration/35972-21fschecks_time20:21:033
339940,0migration/320146-21kthreadcore20:06:073
339940,0migration/31907-21kthreadcore19:31:073
339940,0migration/314798-21kthreadcore21:31:083
339940,0migration/311897-21taskset19:39:103
339940,0migration/310157-21diskmemload23:56:143
329940,0watchdog/329894-21grep21:21:083
329940,0watchdog/314379-21kthreadcore20:01:083
329940,0watchdog/31361-21kthreadcore21:01:043
329940,0watchdog/30-21swapper/319:26:443
29815040,0irq/29-eth0-tx-28503-21ssh21:41:012
29815040,0irq/29-eth0-tx-26994-21munin-node22:36:012
29815040,0irq/29-eth0-tx-22836-21ssh23:26:132
29815040,0irq/29-eth0-tx-17579-21ssh21:31:512
29815040,0irq/29-eth0-tx-1695-21diskmemload23:21:072
29815040,0irq/29-eth0-tx-0-21swapper/223:56:042
29815040,0irq/29-eth0-tx-0-21swapper/223:41:062
29815040,0irq/29-eth0-tx-0-21swapper/223:36:312
29815040,0irq/29-eth0-tx-0-21swapper/223:31:102
29815040,0irq/29-eth0-tx-0-21swapper/223:17:042
29815040,0irq/29-eth0-tx-0-21swapper/223:01:122
29815040,0irq/29-eth0-tx-0-21swapper/222:56:552
29815040,0irq/29-eth0-tx-0-21swapper/222:51:012
29815040,0irq/29-eth0-tx-0-21swapper/222:21:132
29815040,0irq/29-eth0-tx-0-21swapper/200:25:552
29815040,0irq/29-eth0-tx-0-21swapper/200:12:192
29805040,0irq/28-eth0-rx-0-21swapper/323:01:033
29805040,0irq/28-eth0-rx-0-21swapper/322:47:253
29805040,0irq/28-eth0-rx-0-21swapper/320:46:093
29805040,0irq/28-eth0-rx-0-21swapper/320:36:073
259940,0migration/225397-21kthreadcore20:56:052
259940,0migration/224725-21kthreadcore20:31:072
259940,0migration/220840-21gltestperf21:16:022
259940,0migration/220516-21idleruntime21:36:062
259940,0migration/219824-21kthreadcore20:06:072
259940,0migration/212905-21fschecks_count19:41:022
249940,0watchdog/231708-21kthreadcore23:51:092
249940,0watchdog/231314-21perl21:01:002
249940,0watchdog/227579-21tune2fs19:51:042
249940,0watchdog/222337-21ssh21:55:562
249940,0watchdog/210684-21kthreadcore20:21:082
249940,0watchdog/20-21swapper/222:41:082
249940,0watchdog/20-21swapper/222:11:042
249940,0watchdog/20-21swapper/200:41:092
227689943,0cyclictest7200-21awk00:16:072
227689943,0cyclictest708-21awk00:31:042
227689943,0cyclictest6119-21awk19:36:052
227689943,0cyclictest3571-21lldpd23:46:052
227689943,0cyclictest3571-21lldpd22:46:042
227689943,0cyclictest3571-21lldpd20:47:022
227689943,0cyclictest3571-21lldpd20:12:002
227689943,0cyclictest3571-21lldpd19:56:312
227689943,0cyclictest3524-21snmpd21:27:432
227689943,0cyclictest3524-21snmpd19:31:272
227689943,0cyclictest3250-21irqbalance22:05:562
227689943,0cyclictest3250-21irqbalance00:50:562
227689943,0cyclictest32179-21awk22:01:052
227689943,0cyclictest14746-21awk21:51:052
227689941,0cyclictest0-21swapper/222:31:022
227679944,0cyclictest0-21swapper/123:16:421
227679944,0cyclictest0-21swapper/123:11:011
227679943,0cyclictest8974-21awk23:21:051
227679943,0cyclictest6353-21awk20:21:041
227679943,0cyclictest3571-21lldpd21:51:331
227679943,0cyclictest3571-21lldpd21:36:031
227679943,0cyclictest3571-21lldpd21:06:021
227679943,0cyclictest3571-21lldpd21:01:321
227679943,0cyclictest3571-21lldpd20:56:321
227679943,0cyclictest3571-21lldpd20:41:011
227679943,0cyclictest30830-21awk00:11:051
227679943,0cyclictest23423-21awk21:56:051
227679943,0cyclictest18092-21awk00:41:071
227679943,0cyclictest13387-21awk19:41:041
227679943,0cyclictest13156-21awk22:46:061
227679940,0cyclictest0-21swapper/123:31:401
227669944,0cyclictest0-21swapper/023:31:580
227669944,0cyclictest0-21swapper/022:15:120
227669944,0cyclictest0-21swapper/020:56:120
227669943,0cyclictest3524-21snmpd23:30:290
227669943,0cyclictest3250-21irqbalance23:55:560
227669943,0cyclictest3250-21irqbalance23:47:260
227669943,0cyclictest3250-21irqbalance22:50:560
227669943,0cyclictest3250-21irqbalance22:41:260
227669943,0cyclictest3250-21irqbalance22:25:360
227669943,0cyclictest3250-21irqbalance21:47:060
227669943,0cyclictest3250-21irqbalance21:37:460
227669943,0cyclictest3250-21irqbalance21:15:550
227669943,0cyclictest3250-21irqbalance20:47:150
227669943,0cyclictest3250-21irqbalance00:40:560
227669943,0cyclictest3090-21sort19:56:050
227669943,0cyclictest30814-21awk00:11:050
227669943,0cyclictest29522-21awk21:41:050
227669943,0cyclictest27976-21awk20:36:040
227669943,0cyclictest17212-21awk20:06:060
227669940,0cyclictest30218-21awk20:15:490
179940,0migration/19941-21munin-node20:01:051
179940,0migration/17977-21kthreadcore00:16:111
179940,0migration/17737-21kthreadcore19:36:071
179940,0migration/17001-21kthreadcore19:56:071
179940,0migration/13863-21kthreadcore22:01:071
179940,0migration/131706-21irqrtprio19:31:061
179940,0migration/131194-21kthreadcore22:56:071
179940,0migration/130166-21sh00:26:311
179940,0migration/126248-21kthreadcore22:16:071
179940,0migration/124868-21kthreadcore19:26:131
179940,0migration/121575-21kthreadcore23:46:071
179940,0migration/119648-21taskset21:15:351
179940,0migration/118989-21fschecks_time22:31:041
179940,0migration/117435-21taskset21:31:281
179940,0migration/116496-21fschecks_count20:06:031
179940,0migration/113805-21timerandwakeup22:06:161
179940,0migration/112812-21cpuspeed_turbos20:26:011
179940,0migration/112123-21timerwakeupswit23:01:151
169940,0watchdog/19521-21ssh00:53:371
169940,0watchdog/16314-21runrttasks22:23:441
169940,0watchdog/13929-21kthreadcore23:36:091
169940,0watchdog/128305-21ssh21:40:521
169940,0watchdog/121671-21ssh23:08:241
169940,0watchdog/12000-21cut21:26:001
169940,0watchdog/10-21swapper/123:51:091
169940,0watchdog/10-21swapper/123:42:091
169940,0watchdog/10-21swapper/121:21:081
169940,0watchdog/10-21swapper/100:50:131
169940,0watchdog/10-21swapper/100:36:011
169940,0watchdog/10-21swapper/100:06:091
149940,0migration/04058-21latency21:01:050
149940,0migration/030889-21latency_hist22:00:490
149940,0migration/021186-21irqrtprio20:31:050
149940,0migration/014376-21kthreadcore19:41:060
149940,0migration/010908-21kthreadcore22:06:090
329930,0watchdog/30-21swapper/320:16:003
29805030,0irq/28-eth0-rx-0-21swapper/321:06:093
29805030,0irq/28-eth0-rx-0-21swapper/320:56:093
29805030,0irq/28-eth0-rx-0-21swapper/319:56:003
29805030,0irq/28-eth0-rx-0-21swapper/319:41:013
259930,0migration/219181-21unixbench_multi21:11:142
249930,0watchdog/20-21swapper/220:51:042
249930,0watchdog/20-21swapper/220:41:082
249930,0watchdog/20-21swapper/220:36:162
249930,0watchdog/20-21swapper/220:16:002
227689932,0cyclictest9918-21awk20:01:052
227689932,0cyclictest31963-21munin-node19:26:072
227689932,0cyclictest28287-21awk21:21:062
227689932,0cyclictest12764-21tr20:26:012
227679933,0cyclictest3571-21lldpd20:16:311
227679933,0cyclictest24303-21awk20:11:051
227679932,0cyclictest6512-21cut21:46:061
227679932,0cyclictest32580-21cut20:36:071
227679932,0cyclictest22228-21kthreadcore20:31:061
227679930,0cyclictest0-21swapper/120:46:021
227669933,0cyclictest7355-21kworker/0:122:55:510
227669933,0cyclictest7355-21kworker/0:100:51:070
179930,0migration/110285-21fschecks_count22:26:021
169930,0watchdog/10-21swapper/119:51:041
149930,0migration/022253-21latency_hist21:55:490
227689921,0cyclictest0-21swapper/221:05:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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