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2026-04-24 - 08:36
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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 Fri Apr 24, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1312924434,0sleep20-21swapper/219:16:532
1313823926,0sleep10-21swapper/119:17:001
1319623324,0sleep30-21swapper/319:17:383
1338823228,0sleep00-21swapper/019:19:510
339970,0migration/34088-21kthreadcore22:21:183
35160,0ktimersoftd/30-21swapper/321:18:083
339960,0migration/35429-21runrttasks00:32:453
339960,0migration/326862-21sh21:38:363
339960,0migration/326351-21kthreadcore22:16:153
339960,0migration/318211-21sh22:46:453
339960,0migration/317350-21sh21:32:023
339960,0migration/31304-21sh23:53:193
339960,0migration/312111-21sh00:18:203
339960,0migration/310647-21aten_r1power_cu21:11:093
29805060,0irq/28-eth0-rx-5879-21ssh22:03:473
29805060,0irq/28-eth0-rx-17559-21python00:01:233
29805060,0irq/28-eth0-rx-13088-21ntpq22:06:223
29805060,0irq/28-eth0-rx-0-21swapper/322:56:313
29805060,0irq/28-eth0-rx-0-21swapper/300:11:183
149960,0migration/029573-21sh21:58:480
149960,0migration/029510-21sh00:28:520
149960,0migration/028106-21sh21:41:020
149960,0migration/026745-21sh21:38:170
149960,0migration/024214-21timerandwakeup21:16:230
149960,0migration/011935-21sh23:41:170
135559965,0cyclictest5626-21cut20:21:162
135559960,0cyclictest28866-21ssh00:27:032
135559960,0cyclictest24859-21diskmemload23:14:412
135559960,0cyclictest0-21swapper/222:28:202
135549960,0cyclictest24859-21diskmemload23:37:071
135549960,0cyclictest0-21swapper/123:56:581
35150,0ktimersoftd/30-21swapper/323:19:373
339950,0migration/39848-21kthreadcore20:01:153
339950,0migration/36521-21kthreadcore21:46:173
339950,0migration/329648-21irqrtprio19:31:123
339950,0migration/329444-21if_eth020:16:133
339950,0migration/329257-21kthreadcore20:36:173
339950,0migration/327069-21kthreadcore19:51:163
339950,0migration/326906-21kthreadcore21:56:173
339950,0migration/325672-21kthreadcore00:46:193
339950,0migration/321549-21munin-node20:11:103
339950,0migration/321520-21irqrtprio22:51:163
339950,0migration/32044-21kthreadcore19:56:153
339950,0migration/320023-21missed_timers20:51:163
339950,0migration/318354-21fschecks_count22:31:133
339950,0migration/318266-21fschecks_time20:31:123
329950,0watchdog/329606-21munin-node21:01:133
329950,0watchdog/324743-21sh23:47:143
329950,0watchdog/315387-21ntp_states22:26:223
329950,0watchdog/30-21swapper/321:41:133
29815050,0irq/29-eth0-tx-4669-21munin-node21:46:152
29815050,0irq/29-eth0-tx-379-21munin-node23:36:182
29815050,0irq/29-eth0-tx-3524-21snmpd19:43:250
29815050,0irq/29-eth0-tx-3005-21munin-node19:36:210
29815050,0irq/29-eth0-tx-26359-21munin-node23:51:122
29815050,0irq/29-eth0-tx-26095-21ntp_kernel_pll_22:51:192
29815050,0irq/29-eth0-tx-21131-21munin-node20:11:120
29815050,0irq/29-eth0-tx-17889-21munin-node22:31:122
29815050,0irq/29-eth0-tx-13764-21ssh22:06:412
29815050,0irq/29-eth0-tx-11766-21grep00:36:182
29815050,0irq/29-eth0-tx-0-21swapper/223:27:592
29815050,0irq/29-eth0-tx-0-21swapper/223:17:122
29815050,0irq/29-eth0-tx-0-21swapper/222:36:202
29815050,0irq/29-eth0-tx-0-21swapper/222:18:192
29815050,0irq/29-eth0-tx-0-21swapper/222:05:542
29815050,0irq/29-eth0-tx-0-21swapper/221:41:262
29815050,0irq/29-eth0-tx-0-21swapper/021:01:140
29805050,0irq/28-eth0-rx-8900-21kthreadcore00:36:173
29805050,0irq/28-eth0-rx-24570-21df_abs23:31:103
29805050,0irq/28-eth0-rx-22973-21ssh22:13:143
29805050,0irq/28-eth0-rx-19168-21cut21:51:183
29805050,0irq/28-eth0-rx-17489-21kthreadcore00:41:173
29805050,0irq/28-eth0-rx-1329-21cut23:36:133
29805050,0irq/28-eth0-rx-0-21swapper/323:58:453
29805050,0irq/28-eth0-rx-0-21swapper/323:41:173
29805050,0irq/28-eth0-rx-0-21swapper/323:26:163
29805050,0irq/28-eth0-rx-0-21swapper/323:06:113
29805050,0irq/28-eth0-rx-0-21swapper/323:01:163
29805050,0irq/28-eth0-rx-0-21swapper/322:41:083
29805050,0irq/28-eth0-rx-0-21swapper/322:36:163
29805050,0irq/28-eth0-rx-0-21swapper/321:22:113
29805050,0irq/28-eth0-rx-0-21swapper/320:26:153
29805050,0irq/28-eth0-rx-0-21swapper/300:24:293
29805050,0irq/28-eth0-rx-0-21swapper/300:06:573
259950,0migration/26643-21latency_hist00:35:592
259950,0migration/228615-21aten_r1power_fr21:01:092
259950,0migration/228277-21kthreadcore00:46:202
259950,0migration/227030-21sh21:38:592
259950,0migration/225391-21kthreadcore19:26:162
259950,0migration/224943-21cpuspeed_turbos19:51:102
259950,0migration/222986-21kthreadcore00:06:172
259950,0migration/214531-21taskset23:23:372
259950,0migration/214193-21kthreadcore21:31:162
259950,0migration/212452-21idleruntime22:46:152
249950,0watchdog/230579-21kthreadcore21:21:172
249950,0watchdog/20-21swapper/220:06:172
249950,0watchdog/20-21swapper/220:06:172
19150,0ktimersoftd/10-21swapper/123:53:491
19150,0ktimersoftd/10-21swapper/100:45:321
169950,0watchdog/130153-21kthreadcore21:41:171
169950,0watchdog/118692-21kthreadcore23:06:181
169950,0watchdog/110693-21memory00:16:181
149950,0migration/08291-21kthreadcore22:41:170
149950,0migration/07578-21kthreadcore21:46:180
149950,0migration/032495-21kthreadcore22:01:180
149950,0migration/031754-21kthreadcore20:16:160
149950,0migration/028856-21cpuspeed_turbos22:56:120
149950,0migration/028111-21kthreadcore00:46:200
149950,0migration/027169-21kthreadcore19:51:160
149950,0migration/024189-21taskset22:15:590
149950,0migration/02275-21kthreadcore20:41:150
149950,0migration/02255-21proc_pri00:11:220
149950,0migration/021081-21kthreadcore23:46:170
149950,0migration/020206-21kthreadcore22:11:170
149950,0migration/020099-21kthreadcore22:31:180
149950,0migration/018719-21kthreadcore23:06:180
149950,0migration/018704-21if_eth020:31:150
149950,0migration/018288-21kthreadcore23:26:160
149950,0migration/018169-21kthreadcore19:21:150
149950,0migration/016902-21timerandwakeup21:31:240
149950,0migration/016542-21kthreadcore20:51:150
149950,0migration/016442-21kthreadcore00:01:170
149950,0migration/015905-21kthreadcore21:51:170
149950,0migration/015407-21taskset00:41:000
149950,0migration/014907-21sh00:40:140
149950,0migration/011457-21timerwakeupswit23:01:230
149950,0migration/011150-21kthreadcore23:21:180
149950,0migration/010379-21taskset23:59:230
135559955,0cyclictest0-21swapper/223:46:132
135549955,0cyclictest0-21swapper/122:13:431
135549955,0cyclictest0-21swapper/121:50:231
135549955,0cyclictest0-21swapper/120:51:151
135549950,0cyclictest24859-21diskmemload22:07:531
135549950,0cyclictest0-21swapper/123:50:021
135549950,0cyclictest0-21swapper/123:29:331
135549950,0cyclictest0-21swapper/122:55:201
135549950,0cyclictest0-21swapper/122:43:021
135549950,0cyclictest0-21swapper/100:30:431
8305040,0irq/26-0000:00:0-21swapper/223:00:592
339940,0migration/35199-21kthreadcore19:36:163
329940,0watchdog/323282-21sed19:46:173
329940,0watchdog/30-21swapper/320:56:213
329940,0watchdog/30-21swapper/320:46:173
329940,0watchdog/30-21swapper/319:41:093
329940,0watchdog/30-21swapper/300:26:143
29815040,0irq/29-eth0-tx-3088-21ssh00:12:162
29815040,0irq/29-eth0-tx-22196-21rsyslogd20:48:060
29815040,0irq/29-eth0-tx-14095-21telnet20:06:110
29815040,0irq/29-eth0-tx-14095-21telnet20:06:110
29815040,0irq/29-eth0-tx-0-21swapper/223:56:452
29815040,0irq/29-eth0-tx-0-21swapper/223:31:042
29815040,0irq/29-eth0-tx-0-21swapper/222:21:042
29815040,0irq/29-eth0-tx-0-21swapper/221:56:062
29815040,0irq/29-eth0-tx-0-21swapper/221:26:132
29815040,0irq/29-eth0-tx-0-21swapper/200:41:492
29815040,0irq/29-eth0-tx-0-21swapper/200:21:062
29815040,0irq/29-eth0-tx-0-21swapper/200:16:112
29815040,0irq/29-eth0-tx-0-21swapper/200:01:152
29815040,0irq/29-eth0-tx-0-21swapper/021:21:050
29805040,0irq/28-eth0-rx-0-21swapper/323:21:113
29805040,0irq/28-eth0-rx-0-21swapper/323:10:593
29805040,0irq/28-eth0-rx-0-21swapper/321:26:093
29805040,0irq/28-eth0-rx-0-21swapper/320:21:163
29805040,0irq/28-eth0-rx-0-21swapper/320:10:483
29805040,0irq/28-eth0-rx-0-21swapper/320:10:483
29805040,0irq/28-eth0-rx-0-21swapper/319:30:413
259940,0migration/25979-21kthreadcore19:36:162
259940,0migration/231824-21kthreadcore22:56:182
259940,0migration/23055-21df_abs22:41:112
259940,0migration/221246-21aten_r1power_po20:11:092
259940,0migration/218982-21kthreadcore22:11:162
259940,0migration/218459-21fschecks_time20:31:132
259940,0migration/214254-21fschecks_count19:21:112
259940,0migration/210884-21fschecks_count19:41:102
249940,0watchdog/218693-21kthreadcore23:06:182
249940,0watchdog/20-21swapper/219:31:092
179940,0migration/19901-21fschecks_time23:41:131
179940,0migration/1667-21cpuspeed_turbos22:21:111
179940,0migration/14763-21kthreadcore19:36:151
179940,0migration/131573-21fschecks_time23:16:121
179940,0migration/131067-21kthreadcore22:56:171
179940,0migration/125641-21kthreadcore21:56:161
179940,0migration/124095-21munin-node00:46:121
179940,0migration/122244-21kthreadcore21:16:171
179940,0migration/113733-21kthreadcore21:31:161
179940,0migration/113394-21aten_r1power_en00:21:111
179940,0migration/112834-21irqrtprio22:46:161
169940,0watchdog/14586-21python00:31:221
169940,0watchdog/131353-21ssh23:32:341
169940,0watchdog/130580-21kthreadcore21:21:171
169940,0watchdog/128621-21forks19:31:091
169940,0watchdog/128245-21ssh23:11:181
169940,0watchdog/125755-21memory00:06:181
169940,0watchdog/123271-21kthreadcore21:36:171
169940,0watchdog/118691-21sh00:03:381
169940,0watchdog/118090-21kthreadcore21:51:171
169940,0watchdog/117809-21cut20:06:171
169940,0watchdog/117809-21cut20:06:171
169940,0watchdog/11440-21munin-node21:26:171
169940,0watchdog/112868-21netstat20:46:171
169940,0watchdog/112202-21kthreadcore21:11:171
169940,0watchdog/110552-21kthreadcore23:21:181
169940,0watchdog/10-21swapper/120:36:171
169940,0watchdog/10-21swapper/120:31:171
169940,0watchdog/10-21swapper/119:46:171
149940,0migration/03496-21aten_r1power_vo21:06:100
149940,0migration/030605-21latency_hist23:15:590
149940,0migration/028614-21kthreadcore23:51:160
149940,0migration/025606-21kthreadcore20:56:170
149940,0migration/012502-21kthreadcore22:06:200
135559943,0cyclictest7987-21awk20:46:132
135559943,0cyclictest3571-21lldpd21:11:022
135559943,0cyclictest3571-21lldpd20:26:002
135559943,0cyclictest3571-21lldpd20:01:002
135559943,0cyclictest3571-21lldpd19:46:002
135559943,0cyclictest3524-21snmpd21:06:442
135559943,0cyclictest3524-21snmpd19:56:432
135559943,0cyclictest29524-21awk20:16:142
135559943,0cyclictest25912-21awk20:36:152
135559943,0cyclictest22435-21awk20:56:142
135559943,0cyclictest18955-21awk21:16:142
135559943,0cyclictest14589-21awk21:51:152
135559943,0cyclictest10252-21awk23:41:152
135549943,0cyclictest672-21awk20:41:131
135549943,0cyclictest3571-21lldpd23:04:021
135549943,0cyclictest3571-21lldpd22:02:321
135549943,0cyclictest3524-21snmpd22:20:291
135549943,0cyclictest3524-21snmpd21:05:591
135549943,0cyclictest3524-21snmpd20:26:281
135549943,0cyclictest3524-21snmpd20:25:581
135549943,0cyclictest3250-21irqbalance22:39:051
135549943,0cyclictest3250-21irqbalance00:36:351
135549943,0cyclictest29535-21awk00:11:151
135549943,0cyclictest29500-21awk20:16:141
135549943,0cyclictest19122-21irqcore22:31:171
135549943,0cyclictest14811-21awk19:21:131
135549943,0cyclictest10445-21awk22:26:171
135539943,0cyclictest31771-21sadc20:40:580
135539943,0cyclictest29232-21awk19:31:110
135539943,0cyclictest27558-21awk22:36:140
135539943,0cyclictest18588-21awk19:46:140
135539943,0cyclictest11460-21awk20:26:130
135539940,0cyclictest0-21swapper/000:09:450
329930,0watchdog/30-21swapper/319:21:093
29805030,0irq/28-eth0-rx-0-21swapper/321:06:093
29805030,0irq/28-eth0-rx-0-21swapper/320:41:093
169930,0watchdog/127113-21ntp_kernel_pll_20:11:171
169930,0watchdog/10-21swapper/121:01:211
135559932,0cyclictest3571-21lldpd20:41:002
135559930,0cyclictest15002-21perl20:51:112
135549933,0cyclictest3571-21lldpd19:53:001
135549932,0cyclictest3571-21lldpd19:56:591
135549932,0cyclictest21970-21awk19:26:131
135549932,0cyclictest10259-21munin-node19:41:091
135549930,0cyclictest22122-21perl20:56:121
135549930,0cyclictest0-21swapper/120:02:131
135539933,0cyclictest31766-21kworker/0:023:16:160
135539933,0cyclictest0-21swapper/023:37:070
135539932,0cyclictest8446-21kthreadcore20:01:150
135539932,0cyclictest3524-21snmpd21:26:040
135539932,0cyclictest3524-21snmpd00:16:360
135539932,0cyclictest30401-21wc00:30:590
135539932,0cyclictest24601-21sed23:31:100
135539932,0cyclictest22064-21awk19:26:140
135539932,0cyclictest16859-21grep00:21:180
135539932,0cyclictest11783-21awk21:11:140
135539930,0cyclictest31857-21munin-node19:56:110
135539930,0cyclictest1219-21perl22:21:130
135539930,0cyclictest0-21swapper/022:27:160
135539921,0cyclictest0-21swapper/022:50:580
135539921,0cyclictest0-21swapper/022:46:000
135539920,0cyclictest3181-21aten2.4-expect20:21:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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