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2026-04-20 - 06:29
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Mon Apr 20, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297972302275,18sleep10-21swapper/119:07:531
296852283256,17sleep20-21swapper/219:06:262
296392276213,19sleep00-21swapper/019:05:550
299202254231,15sleep30-21swapper/319:09:293
191972620,0sleep20-21swapper/222:45:412
257112610,0sleep20-21swapper/200:28:432
163302600,0sleep10-21swapper/122:25:131
272662560,0sleep20-21swapper/222:31:152
4612540,0sleep30-21swapper/322:54:543
259022540,0sleep00-21swapper/021:31:430
142812540,0sleep00-21swapper/021:45:000
129492540,0sleep00-21swapper/023:21:260
5912530,0sleep00-21swapper/022:54:590
319122230,0sleep30-21swapper/323:53:043
83542200,2sleep38214-21cstates19:30:133
99932170,0sleep30-21swapper/322:20:393
264652170,0sleep20-21swapper/221:32:082
87272150,0sleep00-21swapper/023:39:130
5322140,0sleep20-21swapper/222:54:582
322702130,0sleep20-21swapper/221:15:502
300659990,8cyclictest6181-21ssh00:35:591
16302290,0sleep30-21swapper/323:43:433
300729984,2cyclictest275-21systemd-journal23:16:203
300709980,5cyclictest16236-21cron22:45:012
300619986,2cyclictest25738-21seq21:12:120
300619984,3cyclictest8385-21df19:30:130
300619982,3cyclictest2425-21grep00:15:000
17590280,0sleep30-21swapper/321:26:403
7432270,1sleep37408-21munin-run20:40:003
300729975,2cyclictest34-21ksoftirqd/321:45:013
300729973,3cyclictest658-21snmpd20:33:113
300729973,3cyclictest31830-21users19:10:203
300729973,3cyclictest275-21systemd-journal19:52:053
300729973,2cyclictest275-21systemd-journal21:06:233
300709973,3cyclictest504-21dbus-daemon00:00:012
300709972,3cyclictest275-21systemd-journal21:54:052
300709971,3cyclictest16966-21apt19:50:022
300659973,3cyclictest658-21snmpd22:01:411
300659973,3cyclictest658-21snmpd22:01:411
300659973,3cyclictest658-21snmpd00:33:271
300659972,3cyclictest2374-21sshd22:16:111
300619973,3cyclictest8928-21ntpq22:20:190
300619973,3cyclictest658-21snmpd23:15:340
300619973,3cyclictest17467-21awk22:45:130
300619973,1cyclictest0-21swapper/023:48:480
300619970,5cyclictest275-21systemd-journal00:00:210
27252270,0sleep10-21swapper/122:11:441
1706270,0sleep10-21swapper/120:25:171
300729965,1cyclictest34-21ksoftirqd/320:05:013
300729963,3cyclictest0-21swapper/322:47:043
300729963,2cyclictest658-21snmpd20:56:483
300729963,2cyclictest658-21snmpd00:18:223
300729963,2cyclictest6264-21ssh21:59:403
300729963,2cyclictest5051-21taskset19:22:513
300729963,2cyclictest504-21dbus-daemon20:11:293
300729963,2cyclictest3537-21sh22:36:343
300729963,2cyclictest32700-21ssh21:35:353
300729963,2cyclictest275-21systemd-journal23:06:323
300729963,2cyclictest275-21systemd-journal00:14:563
300729963,2cyclictest1680-21tune2fs22:55:143
300729963,2cyclictest12358-21ssh22:03:013
300729963,2cyclictest12358-21ssh22:03:013
300729963,2cyclictest10129-21ssh21:22:193
300729963,1cyclictest0-21swapper/323:48:263
300729963,1cyclictest0-21swapper/322:40:023
300729963,1cyclictest0-21swapper/321:53:153
300729963,1cyclictest0-21swapper/300:30:563
300729962,3cyclictest658-21snmpd23:23:053
300729962,3cyclictest658-21snmpd22:25:513
300729962,3cyclictest658-21snmpd21:48:563
300729962,3cyclictest658-21snmpd20:50:243
300729962,3cyclictest658-21snmpd20:04:183
300729962,3cyclictest658-21snmpd19:56:033
300729962,3cyclictest658-21snmpd19:18:553
300729962,3cyclictest31559-21date22:15:023
300729962,3cyclictest275-21systemd-journal21:16:033
300729962,3cyclictest275-21systemd-journal00:28:423
300729962,3cyclictest2653-21cat23:55:123
300729962,3cyclictest2456-21awk20:25:213
300729962,3cyclictest17009-21cat22:05:203
300729962,3cyclictest11120-21df00:00:143
300729962,3cyclictest10517-21cat20:45:133
300729962,3cyclictest10143-21cat23:00:163
300729962,1cyclictest0-21swapper/300:20:033
300729960,5cyclictest8723-21sh23:39:123
300709966,0cyclictest0-21swapper/221:22:002
300709963,3cyclictest1567-21apt-get23:15:102
300709963,2cyclictest658-21snmpd22:13:302
300709963,2cyclictest658-21snmpd21:04:522
300709963,2cyclictest658-21snmpd19:25:552
300709963,2cyclictest658-21snmpd00:07:312
300709963,2cyclictest31603-21ssh23:33:092
300709963,2cyclictest23611-21ssh23:28:212
300709963,2cyclictest20870-21ssh21:48:432
300709963,2cyclictest18499-21ssh22:25:502
300709963,1cyclictest0-21swapper/222:00:302
300709963,1cyclictest0-21swapper/222:00:292
300709962,3cyclictest664-21awk22:15:182
300709962,3cyclictest658-21snmpd23:40:412
300709962,3cyclictest658-21snmpd23:35:172
300709962,3cyclictest658-21snmpd23:21:042
300709962,3cyclictest658-21snmpd21:13:242
300709962,3cyclictest658-21snmpd20:31:322
300709962,3cyclictest658-21snmpd20:06:082
300709962,3cyclictest658-21snmpd19:19:192
300709962,3cyclictest658-21snmpd00:15:482
300709962,3cyclictest275-21systemd-journal20:35:532
300709962,3cyclictest275-21systemd-journal19:38:062
300709962,3cyclictest22499-21kworker/u8:223:50:112
300709962,3cyclictest19593-21awk23:45:172
300709962,3cyclictest18643-21ntpq23:05:182
300709962,3cyclictest18614-21cat19:50:212
300709962,3cyclictest13787-21cut19:40:192
300709962,3cyclictest11108-21expr00:00:152
300709962,2cyclictest16605-21sh21:00:012
300709962,1cyclictest0-21swapper/221:40:122
300709962,1cyclictest0-21swapper/221:25:492
300709961,3cyclictest275-21systemd-journal20:40:572
300709961,3cyclictest275-21systemd-journal19:13:042
300709960,6cyclictest0-21swapper/223:00:032
300709960,6cyclictest0-21swapper/220:10:112
300709960,3cyclictest23275-21sshd20:00:472
300659966,0cyclictest0-21swapper/123:48:571
300659966,0cyclictest0-21swapper/123:31:081
300659966,0cyclictest0-21swapper/121:45:251
300659966,0cyclictest0-21swapper/100:28:231
300659966,0cyclictest0-21swapper/100:05:251
300659964,1cyclictest7377-21sshd19:25:381
300659963,2cyclictest881-21rm22:55:011
300659963,2cyclictest6823-21expr21:40:131
300659963,2cyclictest658-21snmpd19:17:251
300659963,2cyclictest10103-21expr23:20:131
300659962,3cyclictest9130-21tail22:40:161
300659962,3cyclictest658-21snmpd23:57:421
300659962,3cyclictest658-21snmpd23:51:481
300659962,3cyclictest658-21snmpd23:27:291
300659962,3cyclictest658-21snmpd22:30:431
300659962,3cyclictest658-21snmpd22:20:211
300659962,3cyclictest658-21snmpd22:06:421
300659962,3cyclictest658-21snmpd21:50:381
300659962,3cyclictest658-21snmpd20:48:331
300659962,3cyclictest658-21snmpd20:23:331
300659962,3cyclictest658-21snmpd20:16:321
300659962,3cyclictest658-21snmpd00:21:391
300659962,3cyclictest658-21snmpd00:16:361
300659962,3cyclictest6395-21ntp_states20:35:191
300659962,3cyclictest504-21dbus-daemon23:06:041
300659962,3cyclictest275-21systemd-journal23:11:191
300659962,3cyclictest275-21systemd-journal21:56:091
300659962,3cyclictest275-21systemd-journal19:35:021
300659962,3cyclictest23117-21if_enp4s021:30:161
300659962,3cyclictest18053-21cut23:45:011
300659962,3cyclictest14209-21seq23:02:441
300659961,4cyclictest27084-21cat20:10:151
300659961,3cyclictest275-21systemd-journal22:51:191
300659960,6cyclictest0-21swapper/121:39:381
300659960,6cyclictest0-21swapper/121:25:111
300659960,6cyclictest0-21swapper/100:04:271
300659960,4cyclictest32262-21awk19:15:001
300659960,3cyclictest17259-21cat22:45:131
300659960,0cyclictest0-21swapper/121:17:361
300619964,1cyclictest7947-21sh22:40:000
300619963,2cyclictest4438-21rm21:38:460
300619963,2cyclictest32268-21seq00:32:260
300619963,2cyclictest29348-21sh23:31:250
300619963,2cyclictest26143-21cron20:10:010
300619963,2cyclictest23883-21tr22:10:130
300619963,2cyclictest18212-21expr23:25:130
300619963,2cyclictest10055-21sh22:01:120
300619963,2cyclictest10055-21sh22:01:120
300619962,3cyclictest8480-21sshd21:21:050
300619962,3cyclictest658-21snmpd23:13:550
300619962,3cyclictest658-21snmpd22:15:100
300619962,3cyclictest658-21snmpd20:58:270
300619962,3cyclictest658-21snmpd20:35:570
300619962,3cyclictest658-21snmpd20:15:480
300619962,3cyclictest658-21snmpd19:55:020
300619962,3cyclictest658-21snmpd19:51:440
300619962,3cyclictest658-21snmpd19:23:230
300619962,3cyclictest31440-21cat21:55:130
300619962,3cyclictest275-21systemd-journal20:55:000
300619962,3cyclictest24000-21cat21:50:160
300619962,3cyclictest15289-21grep21:25:190
300619962,3cyclictest10214-21awk22:40:210
300619962,2cyclictest658-21snmpd21:47:500
300619962,1cyclictest0-21swapper/022:05:120
300619960,6cyclictest0-21swapper/022:34:590
300619960,5cyclictest31073-11brltty00:22:260
300619960,4cyclictest383-21munin-run20:25:010
300619960,4cyclictest275-21systemd-journal00:19:310
300619960,2cyclictest21649-21/usr/sbin/munin20:00:120
300619960,0cyclictest0-21swapper/021:17:220
18035260,0sleep00-21swapper/022:25:290
300729952,2cyclictest658-21snmpd19:35:013
300729952,2cyclictest5826-21ssh00:35:403
300729952,2cyclictest31403-21head20:20:163
300729952,2cyclictest26538-21ssh23:10:163
300729952,2cyclictest22299-21ssh21:30:083
300729952,2cyclictest21318-21ssh21:10:023
300729952,2cyclictest18384-21expr23:25:143
300729952,2cyclictest15384-21entropy19:45:123
300729952,2cyclictest13129-21cat19:40:123
300729952,1cyclictest0-21swapper/322:30:113
300729952,1cyclictest0-21swapper/322:15:283
300729951,3cyclictest5801-21grep19:25:133
300729951,3cyclictest26179-21/usr/sbin/munin23:30:153
300729951,3cyclictest18882-21find00:05:133
300729951,3cyclictest18125-21cat21:00:213
300729950,4cyclictest28608-21/usr/sbin/munin20:15:153
300729950,3cyclictest275-21systemd-journal20:40:043
300709953,1cyclictest663-21runrttasks22:55:012
300709953,1cyclictest658-21snmpd21:05:002
300709953,1cyclictest16032-21sed22:05:142
300709952,2cyclictest883-21if_enp4s022:35:142
300709952,2cyclictest7979-21cat22:20:142
300709952,2cyclictest658-21snmpd20:45:072
300709952,2cyclictest3479-21sh00:35:042
300709952,2cyclictest31900-21ls20:20:192
300709952,2cyclictest30848-21cut21:35:122
300709952,2cyclictest29981-21date20:15:212
300709952,2cyclictest27941-21cat00:10:162
300709952,1cyclictest0-21swapper/200:20:082
300709951,3cyclictest658-21snmpd21:55:092
300709951,3cyclictest658-21snmpd19:30:012
300709951,3cyclictest658-21snmpd19:20:282
300709951,3cyclictest20373-21ntpq19:55:202
300709951,3cyclictest1650-21cat20:25:162
300709951,3cyclictest12397-21/usr/sbin/munin20:50:132
300709951,3cyclictest0-21swapper/223:10:092
300709950,3cyclictest30732-21ssh00:31:132
300659953,2cyclictest658-21snmpd19:45:461
300659953,1cyclictest1429-21sh23:15:051
300659953,1cyclictest14186-21cat19:40:191
300659953,1cyclictest1221-21ntp_offset22:35:171
300659952,2cyclictest658-21snmpd21:20:131
300659952,2cyclictest658-21snmpd21:00:031
300659952,2cyclictest658-21snmpd20:40:071
300659952,2cyclictest658-21snmpd20:00:141
300659952,2cyclictest3644-21tune2fs20:30:151
300659952,2cyclictest27674-21grep00:10:141
300659952,2cyclictest24703-21grep20:05:141
300659952,2cyclictest22452-21/usr/sbin/munin21:10:161
300659952,2cyclictest20565-21sendmail_mailqu19:55:201
300659952,2cyclictest19599-21tune2fs21:05:141
300659952,2cyclictest1934-21ssh23:35:081
300659952,2cyclictest15614-21open_inodes20:55:181
300659952,2cyclictest13025-21hostname20:50:151
300659951,3cyclictest17301-21ls19:50:131
300659950,5cyclictest0-21swapper/119:30:131
300619953,1cyclictest2403-21sh23:55:110
300619953,1cyclictest15472-21cut19:45:130
300619952,2cyclictest773-21cpuspeed19:15:130
300619952,2cyclictest658-21snmpd23:40:030
300619952,2cyclictest658-21snmpd23:00:160
300619952,2cyclictest658-21snmpd22:55:070
300619952,2cyclictest658-21snmpd00:05:060
300619952,2cyclictest30535-21expr19:10:120
300619952,2cyclictest26631-21dpkg23:50:110
300619952,2cyclictest26378-21sshd20:10:050
300619952,2cyclictest19763-21cat21:05:150
300619952,2cyclictest17096-21expr21:00:140
300619952,2cyclictest13154-21df19:40:130
300619951,3cyclictest7745-21cat20:40:120
300619951,3cyclictest560-21gdbus20:25:010
300619951,3cyclictest3671-21acpi00:35:140
300619951,3cyclictest3595-21df20:30:130
300619951,3cyclictest275-21systemd-journal20:45:040
300619951,3cyclictest275-21systemd-journal19:25:050
300619951,3cyclictest20072-21cat00:25:160
300619951,3cyclictest10761-21cat19:35:120
300619950,3cyclictest17518-21systemd-udevd23:05:090
300659940,3cyclictest3195-21cmp19:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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