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2025-12-01 - 13:12
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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 all highest latencies:
System rackaslot8.osadl.org (updated Mon Dec 01, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179512290256,22sleep20-21swapper/219:09:152
176372285251,22sleep10-21swapper/119:05:281
177182264228,21sleep00-21swapper/019:06:240
179892254219,22sleep30-21swapper/319:09:443
27062750,0sleep20-21swapper/222:35:172
6762640,0sleep10-21swapper/123:18:521
231062640,0sleep00-21swapper/022:05:070
230502590,0sleep10-21swapper/123:11:161
253172580,0sleep30-21swapper/323:13:213
138562570,0sleep20-21swapper/200:35:212
84962150,1sleep30-21swapper/300:31:223
68652150,0sleep10-21swapper/121:30:481
325702150,0sleep130654-21snmpd20:50:191
28632150,0sleep30-21swapper/320:55:223
138872150,0sleep10-21swapper/121:14:101
70852140,0sleep20-21swapper/223:23:102
232172130,0sleep00-21swapper/021:20:130
18135991210,1cyclictest0-21swapper/221:25:122
1813899119,1cyclictest34-21ksoftirqd/320:40:013
181359992,4cyclictest24181-21apt23:35:002
181319995,3cyclictest508-21dbus-daemon22:19:341
181269996,2cyclictest29421-21cat20:45:140
181269993,3cyclictest13200-21turbostat23:50:000
24822280,0sleep20-21swapper/221:20:522
20627280,0sleep00-21swapper/023:10:140
181389986,1cyclictest4118-21ssh21:29:563
181389986,1cyclictest34-21ksoftirqd/320:20:003
181389983,4cyclictest0-21swapper/323:00:013
181389983,3cyclictest19982-21systemd-journal23:45:013
181389983,3cyclictest19982-21systemd-journal21:57:313
181389983,3cyclictest19982-21systemd-journal21:40:463
181389983,3cyclictest19982-21systemd-journal21:18:223
181389983,3cyclictest19982-21systemd-journal20:28:103
181359984,3cyclictest508-21dbus-daemon21:36:092
181359984,3cyclictest29741-11brltty22:13:422
181359984,3cyclictest19982-21systemd-journal22:47:442
181359984,3cyclictest19982-21systemd-journal00:06:212
181359983,3cyclictest19982-21systemd-journal20:33:092
181319984,3cyclictest19982-21systemd-journal20:21:281
181319983,3cyclictest19982-21systemd-journal23:25:001
181319983,3cyclictest19982-21systemd-journal20:44:001
181269985,2cyclictest502-21systemd-logind23:04:360
8359270,0sleep10-21swapper/100:09:541
181389974,2cyclictest508-21dbus-daemon23:07:573
181389974,2cyclictest508-21dbus-daemon19:20:593
181389973,3cyclictest508-21dbus-daemon21:51:363
181389973,3cyclictest19982-21systemd-journal00:01:223
181389973,3cyclictest11736-21in:imuxsock23:53:503
181389973,3cyclictest0-21swapper/321:46:303
181389973,3cyclictest0-21swapper/321:12:303
181389973,1cyclictest0-21swapper/323:55:453
181389973,1cyclictest0-21swapper/322:35:123
181389973,1cyclictest0-21swapper/322:21:213
181389973,1cyclictest0-21swapper/300:09:563
181389972,3cyclictest19982-21systemd-journal20:53:113
181389972,3cyclictest19982-21systemd-journal19:39:223
181389971,5cyclictest5956-21ssh23:00:023
181389971,3cyclictest19982-21systemd-journal00:10:063
181359976,1cyclictest28-21ksoftirqd/220:40:002
181359974,2cyclictest31324-21cron23:40:002
181359974,2cyclictest30654-21snmpd00:29:172
181359974,2cyclictest1866-21cron23:20:002
181359973,3cyclictest9939-21cat00:10:142
181359973,3cyclictest508-21dbus-daemon21:05:162
181359973,3cyclictest22138-21ntpq19:15:202
181359973,3cyclictest19982-21systemd-journal23:56:452
181359973,3cyclictest19982-21systemd-journal23:52:102
181359973,1cyclictest0-21swapper/200:24:122
181359973,1cyclictest0-21swapper/200:04:222
181359972,4cyclictest30654-21snmpd23:08:392
181359972,3cyclictest7661-21lldpd22:57:182
181359971,4cyclictest26096-21idleruntime-cro21:45:012
181359971,4cyclictest19583-21sshd20:22:182
181319973,3cyclictest508-21dbus-daemon23:44:391
181319973,3cyclictest25413-21irqstats23:35:171
181319973,3cyclictest19982-21systemd-journal22:34:091
181319973,3cyclictest19982-21systemd-journal22:29:091
181319973,3cyclictest19982-21systemd-journal22:22:451
181319973,3cyclictest19982-21systemd-journal19:32:101
181319973,3cyclictest19116-21gdbus00:40:001
181319973,1cyclictest0-21swapper/123:58:331
181319973,1cyclictest0-21swapper/123:34:101
181319973,1cyclictest0-21swapper/122:51:301
181319973,1cyclictest0-21swapper/122:46:541
181319972,3cyclictest19982-21systemd-journal19:27:151
181319970,2cyclictest16190-21munin-run22:45:011
181319970,2cyclictest16190-21munin-run22:45:011
181269975,1cyclictest17769-21ssh00:15:150
181269974,2cyclictest668-21runrttasks20:08:570
181269973,3cyclictest508-21dbus-daemon00:14:160
181269973,3cyclictest30654-21snmpd22:26:200
181269973,3cyclictest30654-21snmpd20:37:190
181269973,3cyclictest21003-21ntpq20:25:180
181269973,3cyclictest17676-21fschecks_time23:30:140
181269973,3cyclictest11736-21in:imuxsock00:30:070
181269973,3cyclictest10394-21fw_packets23:25:140
181269973,3cyclictest0-21swapper/000:37:530
181269973,1cyclictest6389-21munin-run19:55:010
181269973,1cyclictest0-21swapper/022:37:340
181269973,1cyclictest0-21swapper/021:37:360
181269972,3cyclictest7661-21lldpd21:10:140
181269972,3cyclictest19982-21systemd-journal23:52:360
181269972,3cyclictest19982-21systemd-journal22:58:220
181269972,3cyclictest19982-21systemd-journal22:32:430
181269972,3cyclictest19982-21systemd-journal21:26:580
181269971,3cyclictest26693-21rm00:21:070
181389964,1cyclictest34-21ksoftirqd/322:20:013
181389963,2cyclictest9617-21packagekitd23:25:003
181389963,2cyclictest5136-21tune2fs21:30:163
181389963,2cyclictest30654-21snmpd23:20:063
181389963,2cyclictest30654-21snmpd00:20:313
181389963,2cyclictest28127-21hwlatdetect22:30:163
181389963,2cyclictest23911-21ssh22:50:033
181389963,2cyclictest0-21swapper/322:26:323
181389962,3cyclictest9871-21cat22:40:153
181389962,3cyclictest9871-21cat22:40:143
181389962,3cyclictest7570-21sshd21:07:243
181389962,3cyclictest4583-21grep19:50:153
181389962,3cyclictest32347-21cat00:25:163
181389962,3cyclictest31826-21ntpq22:10:173
181389962,3cyclictest30654-21snmpd23:46:553
181389962,3cyclictest30654-21snmpd23:32:033
181389962,3cyclictest30654-21snmpd19:56:273
181389962,3cyclictest30654-21snmpd19:25:353
181389962,3cyclictest30654-21snmpd19:13:443
181389962,3cyclictest30654-21snmpd00:36:023
181389962,3cyclictest30654-21snmpd00:16:343
181389962,3cyclictest23271-21cat21:20:143
181389962,3cyclictest19982-21systemd-journal21:01:413
181389962,3cyclictest17995-21expr20:20:143
181389962,3cyclictest17596-21which22:45:163
181389962,3cyclictest16285-21expr22:00:143
181389962,3cyclictest14291-21ntpq20:10:193
181389962,3cyclictest1-21systemd19:15:013
181389962,3cyclictest0-21swapper/323:15:513
181389962,3cyclictest0-21swapper/320:40:223
181389962,2cyclictest28305-1kworker/u9:221:36:493
181389962,1cyclictest0-21swapper/322:07:433
181389961,3cyclictest508-21dbus-daemon20:45:013
181389961,3cyclictest19982-21systemd-journal23:37:413
181389961,3cyclictest19982-21systemd-journal20:01:313
181389961,3cyclictest19982-21systemd-journal19:48:063
181389960,2cyclictest32380-21/usr/sbin/munin19:40:203
181389960,2cyclictest22276-21/usr/sbin/munin20:30:173
181359966,0cyclictest0-21swapper/220:10:382
181359964,1cyclictest7802-21diskmemload22:42:522
181359964,1cyclictest7802-21diskmemload22:42:522
181359964,1cyclictest668-21runrttasks19:40:132
181359963,2cyclictest77882sleep222:15:432
181359963,2cyclictest7772-21ssh00:30:382
181359963,2cyclictest5175-21chrt21:00:252
181359963,2cyclictest508-21dbus-daemon20:06:272
181359963,2cyclictest29741-11brltty19:32:152
181359963,2cyclictest26877-21sensors_temp19:25:172
181359963,2cyclictest2597-21sh23:41:442
181359963,2cyclictest22606-21ssh22:25:572
181359963,2cyclictest22476-21ssh23:10:442
181359963,2cyclictest2215-21ssh21:50:172
181359963,2cyclictest16626-21head20:15:192
181359963,2cyclictest16164-21cstates22:00:142
181359963,2cyclictest1-21systemd22:05:202
181359963,2cyclictest10963-21sh21:11:192
181359963,1cyclictest0-21swapper/222:20:372
181359962,3cyclictest30654-21snmpd23:02:122
181359962,3cyclictest30654-21snmpd21:56:312
181359962,3cyclictest30654-21snmpd20:53:102
181359962,3cyclictest30654-21snmpd20:44:312
181359962,3cyclictest30654-21snmpd19:50:152
181359962,3cyclictest30654-21snmpd19:35:322
181359962,3cyclictest29741-11brltty19:57:172
181359962,3cyclictest25304-21seq19:23:472
181359962,3cyclictest18613-21expr19:10:152
181359962,3cyclictest15968-21cat21:15:172
181359962,3cyclictest11277-21cat23:25:212
181359962,3cyclictest10181-21date20:00:202
181359962,3cyclictest0-21swapper/200:15:502
181359962,1cyclictest0-21swapper/223:45:182
181359962,1cyclictest0-21swapper/221:45:352
181359962,1cyclictest0-21swapper/221:31:552
181359961,3cyclictest19982-21systemd-journal22:51:402
181359961,3cyclictest19982-21systemd-journal22:32:302
181359961,3cyclictest19982-21systemd-journal20:47:202
181359960,4cyclictest19982-21systemd-journal19:47:132
181319966,0cyclictest0-21swapper/100:30:391
181319966,0cyclictest0-21swapper/100:10:271
181319963,2cyclictest6045-21chrt19:51:061
181319963,2cyclictest5403-21sh22:36:421
181319963,2cyclictest32697-21expr19:40:141
181319963,2cyclictest27773-21rm21:23:331
181319963,2cyclictest22-21ksoftirqd/120:05:211
181319963,2cyclictest21241-21sh00:17:551
181319963,2cyclictest19735-21entropy21:40:141
181319963,2cyclictest1-21systemd21:01:561
181319963,2cyclictest10516-21taskset20:01:011
181319963,2cyclictest0-21swapper/119:55:141
181319962,3cyclictest6718-21fw_packets23:00:161
181319962,3cyclictest32346-21cat00:25:151
181319962,3cyclictest30654-21snmpd22:55:021
181319962,3cyclictest30654-21snmpd21:35:361
181319962,3cyclictest30654-21snmpd20:58:081
181319962,3cyclictest30654-21snmpd20:26:101
181319962,3cyclictest30654-21snmpd19:45:511
181319962,3cyclictest26859-21expr21:45:141
181319962,3cyclictest24679-21expr20:35:151
181319962,3cyclictest23454-21apt19:20:151
181319962,3cyclictest22727-21tune2fs20:30:151
181319962,3cyclictest15774-21cat20:15:131
181319962,3cyclictest15722-21grep21:15:151
181319962,3cyclictest13972-21expr23:50:141
181319962,3cyclictest0-21swapper/122:10:261
181319962,3cyclictest0-21swapper/122:05:151
181319962,3cyclictest0-21swapper/122:02:041
181319962,1cyclictest141rcu_preempt23:45:141
181319962,1cyclictest0-21swapper/123:05:041
181319962,1cyclictest0-21swapper/121:55:091
181319962,1cyclictest0-21swapper/121:25:031
181319962,1cyclictest0-21swapper/100:22:371
181319962,1cyclictest0-21swapper/100:00:071
181319961,2cyclictest3340-21ssh21:50:371
181319960,6cyclictest0-21swapper/123:20:101
181269964,1cyclictest15555-21/usr/sbin/munin20:15:190
181269964,1cyclictest0-21swapper/023:55:140
181269963,2cyclictest6771-21ntpq21:05:190
181269963,2cyclictest5624-21rm22:15:090
181269963,2cyclictest3802-21cstates21:00:130
181269963,2cyclictest30654-21snmpd20:11:030
181269963,2cyclictest29741-11brltty20:54:020
181269963,2cyclictest23604-21cut19:20:160
181269963,2cyclictest20350-21ntpq21:40:180
181269963,2cyclictest16639-21apt-config22:45:020
181269963,2cyclictest14719-21ssh22:20:230
181269963,2cyclictest11736-21in:imuxsock20:56:070
181269962,3cyclictest9701-21memory20:00:160
181269962,3cyclictest6608-21date19:55:010
181269962,3cyclictest508-21dbus-daemon23:35:280
181269962,3cyclictest508-21dbus-daemon19:27:400
181269962,3cyclictest32737-21expr19:40:140
181269962,3cyclictest32157-21expr23:40:130
181269962,3cyclictest30654-21snmpd23:22:030
181269962,3cyclictest30654-21snmpd21:51:490
181269962,3cyclictest30654-21snmpd20:24:580
181269962,3cyclictest30654-21snmpd19:45:270
181269962,3cyclictest30654-21snmpd19:12:140
181269962,3cyclictest28449-21cat23:15:170
181269962,3cyclictest24560-21fschecks_count22:50:160
181269962,3cyclictest19982-21systemd-journal23:06:220
181269962,3cyclictest19982-21systemd-journal22:42:230
181269962,3cyclictest19982-21systemd-journal22:42:230
181269962,3cyclictest19982-21systemd-journal19:40:000
181269962,3cyclictest16348-21cut21:15:190
181269962,1cyclictest0-21swapper/022:02:040
181269962,1cyclictest0-21swapper/021:55:510
181269962,1cyclictest0-21swapper/021:45:220
181269961,3cyclictest19982-21systemd-journal22:11:120
181269961,2cyclictest3630-21rm00:05:430
181269960,5cyclictest5731-21ntp_states21:30:180
181269960,5cyclictest23188-21turbostat19:20:000
181269960,3cyclictest1006-21rm00:25:280
181269960,2cyclictest19982-21systemd-journal00:00:050
181389952,2cyclictest28054-21grep19:30:153
181389951,3cyclictest12128-21cut20:05:173
181359952,2cyclictest20619-21gltestperf20:25:162
181359951,3cyclictest30654-21snmpd20:55:142
181319952,2cyclictest30390-21cat19:35:131
181319952,2cyclictest20918-21uptime19:15:021
181319951,3cyclictest29084-21apt-config20:45:011
181319951,3cyclictest14406-21which20:10:201
181319950,4cyclictest5805-21/usr/sbin/munin21:05:141
181319950,3cyclictest19982-21systemd-journal19:10:091
181269952,2cyclictest28003-21wc19:30:140
181269952,2cyclictest27017-21ls20:40:140
181269952,2cyclictest22947-21if_enp4s020:30:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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