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2026-03-23 - 06:44
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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 rackaslot8.osadl.org (updated Mon Mar 23, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279782320290,19sleep20-21swapper/219:06:062
281232289233,18sleep10-21swapper/119:07:581
281582264239,16sleep00-21swapper/019:08:250
280622254228,17sleep30-21swapper/319:07:123
326792590,0sleep20-21swapper/222:15:342
62712580,0sleep20-21swapper/219:30:132
226682580,0sleep10-21swapper/122:29:591
10762550,0sleep30-21swapper/300:32:533
265792540,1sleep00-21swapper/023:10:220
198962180,0sleep10-21swapper/122:08:211
18102180,0sleep00-21swapper/022:36:100
159562180,0sleep00-21swapper/021:45:570
236002150,0sleep30-21swapper/322:10:183
276712140,0sleep20-21swapper/223:30:262
10392140,0sleep30-21swapper/322:55:143
88482120,0sleep20-21swapper/219:35:142
283989996,2cyclictest23399-21users21:50:223
283899993,4cyclictest6880-21idleruntime-cro22:40:001
283989983,3cyclictest275-21systemd-journal20:57:423
283939984,3cyclictest572-21sshd21:56:182
283939983,4cyclictest0-21swapper/223:20:122
283899983,3cyclictest275-21systemd-journal23:25:011
283849987,1cyclictest12-21ksoftirqd/023:00:010
31848270,0sleep00-21swapper/022:55:000
283989973,3cyclictest275-21systemd-journal22:25:013
283989973,2cyclictest275-21systemd-journal22:06:183
283989973,1cyclictest0-21swapper/323:59:593
283989971,5cyclictest6065-21munin-run22:20:013
283939976,1cyclictest28-21ksoftirqd/223:49:592
283939976,1cyclictest28-21ksoftirqd/200:05:002
283939974,2cyclictest30594-21awk21:35:192
283939974,2cyclictest275-21systemd-journal22:05:202
283939974,2cyclictest23570-21diskmemload00:07:102
283939973,3cyclictest658-21snmpd19:50:462
283939973,3cyclictest275-21systemd-journal22:45:462
283939973,3cyclictest275-21systemd-journal21:14:472
283939973,3cyclictest275-21systemd-journal21:14:472
283939973,3cyclictest1704-21packagekitd23:35:002
283899976,1cyclictest22-21ksoftirqd/100:00:001
283899973,3cyclictest504-21dbus-daemon22:18:411
283899973,3cyclictest275-21systemd-journal23:04:581
283899973,3cyclictest275-21systemd-journal21:42:431
283899970,1cyclictest31818-21irqstats20:25:171
283849976,1cyclictest12-21ksoftirqd/023:35:000
283849976,1cyclictest0-21swapper/023:45:160
283849973,3cyclictest658-21snmpd20:13:260
283849973,3cyclictest275-21systemd-journal22:02:250
283849973,3cyclictest275-21systemd-journal00:20:040
283849973,2cyclictest304-21systemd-udevd22:22:350
26991270,1sleep00-21swapper/020:15:150
21768270,0sleep00-21swapper/021:30:180
1785270,0sleep30-21swapper/322:36:093
9642260,1sleep30-21swapper/323:00:193
283989966,0cyclictest0-21swapper/321:18:423
283989964,1cyclictest8631-21cron23:20:013
283989963,2cyclictest9539-21sh21:23:343
283989963,2cyclictest4918-21tune2fs00:35:163
283989963,2cyclictest3979-21ssh23:35:323
283989963,2cyclictest3541-21ssh21:39:233
283989963,2cyclictest25507-21cat23:10:143
283989963,2cyclictest24740-21cat22:50:163
283989963,2cyclictest23088-21ssh21:30:563
283989963,2cyclictest22661-21sh23:47:043
283989963,2cyclictest16410-21ssh23:05:103
283989963,2cyclictest11447-21ssh23:20:473
283989963,1cyclictest0-21swapper/321:57:323
283989963,1cyclictest0-21swapper/321:40:483
283989962,3cyclictest8100-21if_enp4s022:40:163
283989962,3cyclictest658-21snmpd23:50:263
283989962,3cyclictest658-21snmpd20:35:533
283989962,3cyclictest658-21snmpd20:20:013
283989962,3cyclictest658-21snmpd20:00:103
283989962,3cyclictest658-21snmpd19:59:313
283989962,3cyclictest658-21snmpd19:35:433
283989962,3cyclictest658-21snmpd19:32:483
283989962,3cyclictest28971-21cat19:10:153
283989962,3cyclictest27990-21expr00:10:123
283989962,3cyclictest23530-11brltty20:27:123
283989962,3cyclictest17970-21fschecks_count23:25:153
283989962,3cyclictest16403-21if_enp4s022:45:153
283989962,3cyclictest1591-21if_enp4s020:30:163
283989962,3cyclictest1337-21cat19:20:143
283989962,3cyclictest0-21swapper/322:00:133
283989962,1cyclictest0-21swapper/323:32:443
283989962,1cyclictest0-21swapper/322:30:163
283989962,1cyclictest0-21swapper/321:27:173
283989962,1cyclictest0-21swapper/321:11:033
283989962,1cyclictest0-21swapper/321:11:033
283989962,1cyclictest0-21swapper/319:15:453
283989962,1cyclictest0-21swapper/300:17:373
283989961,4cyclictest0-21swapper/323:40:143
283989961,3cyclictest275-21systemd-journal21:05:133
283989961,3cyclictest275-21systemd-journal20:40:123
283989961,2cyclictest12787-21/usr/sbin/munin00:20:153
283989960,1cyclictest26346-21apt-get20:15:113
283939966,0cyclictest0-21swapper/222:53:262
283939966,0cyclictest0-21swapper/220:15:162
283939966,0cyclictest0-21swapper/219:10:472
283939966,0cyclictest0-21swapper/200:26:032
283939963,2cyclictest658-21snmpd20:58:182
283939963,2cyclictest658-21snmpd19:56:342
283939963,2cyclictest5974-21sh00:15:512
283939963,2cyclictest3985-21df21:20:142
283939963,2cyclictest29301-21cat00:30:162
283939963,2cyclictest25837-21sh22:31:072
283939963,2cyclictest13239-21sh23:41:132
283939963,1cyclictest0-21swapper/223:26:362
283939963,1cyclictest0-21swapper/223:10:052
283939962,3cyclictest658-21snmpd23:53:432
283939962,3cyclictest658-21snmpd23:17:492
283939962,3cyclictest658-21snmpd22:41:212
283939962,3cyclictest658-21snmpd22:35:332
283939962,3cyclictest658-21snmpd22:13:032
283939962,3cyclictest658-21snmpd22:02:142
283939962,3cyclictest658-21snmpd21:34:102
283939962,3cyclictest658-21snmpd21:05:352
283939962,3cyclictest658-21snmpd20:31:142
283939962,3cyclictest658-21snmpd19:44:462
283939962,3cyclictest658-21snmpd19:20:152
283939962,3cyclictest658-21snmpd00:14:062
283939962,3cyclictest504-21dbus-daemon21:47:252
283939962,3cyclictest504-21dbus-daemon21:25:012
283939962,3cyclictest275-21systemd-journal22:56:292
283939962,3cyclictest275-21systemd-journal20:51:272
283939962,3cyclictest15993-21munin-plugin-st23:05:012
283939962,3cyclictest15465-21head22:25:152
283939962,3cyclictest14485-21cat22:25:012
283939962,1cyclictest0-21swapper/221:50:282
283939962,1cyclictest0-21swapper/221:40:592
283939962,1cyclictest0-21swapper/200:35:262
283939960,6cyclictest0-21swapper/223:06:192
283939960,1cyclictest141rcu_preempt20:25:132
283899966,0cyclictest0-21swapper/123:45:121
283899966,0cyclictest0-21swapper/123:30:311
283899966,0cyclictest0-21swapper/122:30:371
283899966,0cyclictest0-21swapper/121:45:091
283899963,2cyclictest8851-21ssh22:20:471
283899963,2cyclictest8208-21sh21:22:331
283899963,2cyclictest658-21snmpd22:01:591
283899963,2cyclictest658-21snmpd20:15:471
283899963,2cyclictest658-21snmpd20:10:051
283899963,2cyclictest658-21snmpd00:16:121
283899963,2cyclictest4236-21seq23:35:451
283899963,2cyclictest30161-21chrt20:20:211
283899963,2cyclictest275-21systemd-journal23:26:351
283899963,2cyclictest23638-21pmu-power22:10:191
283899963,2cyclictest14652-21taskset19:46:201
283899963,2cyclictest0-21swapper/121:25:191
283899963,2cyclictest0-21swapper/100:25:051
283899963,1cyclictest18798-21diskmemload00:09:151
283899963,1cyclictest0-21swapper/121:59:361
283899963,1cyclictest0-21swapper/121:16:421
283899962,3cyclictest658-21snmpd23:51:501
283899962,3cyclictest658-21snmpd21:05:211
283899962,3cyclictest658-21snmpd21:00:511
283899962,3cyclictest658-21snmpd20:46:001
283899962,3cyclictest658-21snmpd20:43:471
283899962,3cyclictest658-21snmpd19:39:551
283899962,3cyclictest658-21snmpd19:16:101
283899962,3cyclictest658-21snmpd00:21:001
283899962,3cyclictest5048-21cat00:35:161
283899962,3cyclictest4189-21uname19:25:161
283899962,3cyclictest32571-21expr22:55:101
283899962,3cyclictest29589-21cat21:35:131
283899962,3cyclictest275-21systemd-journal20:10:011
283899962,3cyclictest25036-21ntpq22:50:171
283899962,3cyclictest23667-21seq21:31:231
283899962,3cyclictest23530-11brltty20:30:571
283899961,3cyclictest275-21systemd-journal00:30:041
283899960,6cyclictest0-21swapper/123:14:391
283899960,6cyclictest0-21swapper/121:12:191
283899960,6cyclictest0-21swapper/121:12:191
283899960,6cyclictest0-21swapper/119:55:551
283899960,6cyclictest0-21swapper/100:11:331
283899960,6cyclictest0-21swapper/100:00:431
283899960,5cyclictest21643-21munin-run20:05:011
283899960,3cyclictest12050-21cat20:55:001
283899960,0cyclictest0-21swapper/123:07:121
283849963,2cyclictest9196-21sh00:37:450
283849963,2cyclictest6838-21sh23:57:050
283849963,2cyclictest658-21snmpd22:06:080
283849963,2cyclictest28433-21interrupts00:10:140
283849963,2cyclictest20141-21if_err_enp4s000:05:140
283849963,2cyclictest19383-21cron20:00:010
283849963,2cyclictest19279-21ssh23:06:100
283849963,2cyclictest1925-21processes23:15:150
283849963,2cyclictest18012-21sh23:44:540
283849963,2cyclictest16746-21ntpq22:45:170
283849963,2cyclictest13502-21ssh23:22:200
283849962,3cyclictest9971-21wc23:40:000
283849962,3cyclictest658-21snmpd23:50:590
283849962,3cyclictest658-21snmpd22:31:150
283849962,3cyclictest658-21snmpd22:10:450
283849962,3cyclictest658-21snmpd21:55:200
283849962,3cyclictest658-21snmpd21:51:080
283849962,3cyclictest658-21snmpd21:02:420
283849962,3cyclictest658-21snmpd20:24:110
283849962,3cyclictest658-21snmpd20:04:260
283849962,3cyclictest658-21snmpd19:35:070
283849962,3cyclictest658-21snmpd19:10:280
283849962,3cyclictest658-21snmpd00:01:380
283849962,3cyclictest504-21dbus-daemon21:00:010
283849962,3cyclictest4642-21ntp_states00:15:150
283849962,3cyclictest12413-21cat21:25:120
283849962,1cyclictest28863-21apt-get21:35:090
283849962,1cyclictest0-21swapper/023:01:510
283849962,1cyclictest0-21swapper/022:40:180
283849962,1cyclictest0-21swapper/000:30:280
283849960,6cyclictest0-21swapper/021:21:590
283849960,3cyclictest3251-21grep19:25:010
283849960,2cyclictest5390-21/usr/sbin/munin20:40:180
283849960,1cyclictest0-21swapper/020:30:160
283989955,0cyclictest0-21swapper/320:45:033
283989955,0cyclictest0-21swapper/320:05:073
283989952,2cyclictest658-21snmpd19:53:103
283989952,2cyclictest658-21snmpd19:45:043
283989952,2cyclictest4173-21cat19:25:153
283989952,2cyclictest25491-21sed20:10:193
283989952,2cyclictest20113-21chrt00:25:093
283989952,2cyclictest19285-21ssh00:05:043
283989952,2cyclictest15009-21cpuspeed_turbos22:25:143
283989952,2cyclictest13174-21readlink21:45:013
283989952,2cyclictest11164-21df19:40:143
283989952,2cyclictest10600-21latency20:50:173
283989951,3cyclictest15281-21cat21:00:153
283989951,3cyclictest10924-21cups-browsed23:59:593
283939953,1cyclictest24564-21fschecks_time20:10:132
283939953,1cyclictest12966-21chrt19:45:062
283939953,1cyclictest0-21swapper/221:15:162
283939952,2cyclictest7964-21expr20:45:132
283939952,2cyclictest4004-21gltestperf19:25:152
283939952,2cyclictest3527-21expr20:35:122
283939952,2cyclictest32381-21grep19:15:172
283939952,2cyclictest28861-21cat20:20:132
283939952,2cyclictest2698-21chrt23:55:052
283939952,2cyclictest19932-21expr20:00:122
283939952,2cyclictest14766-21expr21:00:112
283939952,1cyclictest0-21swapper/200:20:072
283939951,3cyclictest6612-21/usr/sbin/munin20:40:192
283939950,1cyclictest141rcu_preempt20:05:122
283899953,1cyclictest663-21runrttasks19:33:071
283899952,2cyclictest3685-21gltestperf20:35:141
283899952,2cyclictest21911-21cat21:50:131
283899952,2cyclictest1640-21expr19:20:151
283899952,2cyclictest1360-21basename23:15:121
283899952,2cyclictest12326-21dpkg20:55:001
283899952,2cyclictest11104-21cat19:40:131
283899952,2cyclictest10694-21ls23:40:131
283899950,4cyclictest7686-21expr22:40:141
283899950,3cyclictest28951-21expr19:10:141
283899950,1cyclictest15691-21apt-get22:45:121
283899950,1cyclictest15191-21/usr/sbin/munin19:50:171
283849953,1cyclictest15192-21acpi19:50:120
283849952,2cyclictest7833-21cat20:45:120
283849952,2cyclictest658-21snmpd19:45:270
283849952,2cyclictest4354-21latency_hist21:39:590
283849952,2cyclictest3839-21cat20:35:140
283849952,2cyclictest3751-21cat19:25:130
283849952,2cyclictest31806-21cat20:25:170
283849952,2cyclictest31757-21expr19:15:140
283849952,2cyclictest30586-21ssh22:15:100
283849952,2cyclictest27606-21apt21:15:110
283849952,2cyclictest20310-21cat21:10:160
283849952,2cyclictest20310-21cat21:10:160
283849952,2cyclictest20170-21ssh00:25:110
283849952,2cyclictest17336-21gltestperf21:05:160
283849952,2cyclictest14621-21ssh22:25:000
283849952,2cyclictest12819-21date19:45:000
283849952,2cyclictest10055-21cstates20:50:140
283849952,1cyclictest0-21swapper/023:25:130
283849951,3cyclictest658-21snmpd20:05:170
283849951,3cyclictest658-21snmpd19:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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