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2025-12-27 - 12:09
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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 Sat Dec 27, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181352295269,17sleep20-21swapper/219:07:512
181492271241,19sleep10-21swapper/119:08:021
180702260229,21sleep00-21swapper/019:06:590
179772254226,19sleep30-21swapper/319:05:513
250382660,1sleep30-21swapper/321:18:523
32962620,0sleep30-21swapper/322:57:033
174912610,0sleep20-21swapper/223:42:192
55242570,0sleep00-21swapper/021:00:150
109202570,0sleep30-21swapper/321:47:233
205462550,0sleep30-21swapper/300:20:593
192052550,0sleep20-21swapper/221:33:522
29042530,0sleep10-21swapper/100:10:481
158532530,0sleep30-21swapper/323:04:483
227442190,0sleep00-21swapper/021:17:120
51082170,0sleep00-21swapper/021:25:170
195112160,0sleep20-21swapper/222:47:572
294492150,1sleep20-21swapper/222:35:152
178992150,0sleep00-21swapper/021:15:000
255082140,0sleep00-21swapper/022:50:590
214552140,0sleep00-21swapper/022:30:220
7592130,0sleep30-21swapper/321:23:133
283862130,0sleep20-21swapper/223:30:132
195932120,0sleep10-21swapper/121:15:171
187562110,0sleep20-21swapper/222:29:262
1844299118,2cyclictest21332-21apt-get21:35:142
1844299117,3cyclictest25938-21apt-get19:25:122
1844299109,0cyclictest525-21apt-get00:10:132
1844299108,1cyclictest11436-21apt-get00:35:102
1844299105,4cyclictest8329-21turbostat.cron22:05:002
1844299105,4cyclictest12526-21munin-run23:40:002
1844299102,5cyclictest22273-21wc19:15:152
1844299101,6cyclictest24270-21sh23:45:572
1844299101,3cyclictest27161-21expr00:25:142
184479996,2cyclictest34-21ksoftirqd/300:19:593
184429997,0cyclictest21142-21apt-get20:25:132
184429996,2cyclictest14403-21apt-get20:10:012
184429995,3cyclictest19338-21cut19:10:162
184429994,4cyclictest9195-21/usr/sbin/munin00:15:132
184429991,6cyclictest31641-21rm21:22:062
184429991,5cyclictest8367-21ssh22:41:252
184429991,5cyclictest5806-21wc21:00:162
184429991,5cyclictest25476-21ssh00:24:342
184429991,3cyclictest16044-21ntp_states21:50:152
28074280,0sleep30-21swapper/323:11:013
21883280,0sleep30-21swapper/300:03:383
18779280,1sleep30-21swapper/322:10:173
184479986,1cyclictest34-21ksoftirqd/321:10:003
184479985,2cyclictest658-21snmpd23:57:423
184429987,1cyclictest28-21ksoftirqd/223:25:012
184429986,2cyclictest23366-21apt-get20:30:132
184429985,2cyclictest8876-21ssh22:05:142
184429985,2cyclictest7200-21apt19:55:012
184429985,2cyclictest3764-21apt21:25:112
184429985,2cyclictest30438-21sh23:50:032
184429985,2cyclictest25428-21ssh23:10:122
184429985,2cyclictest23276-21ssh22:50:132
184429985,2cyclictest20608-21uniq22:30:152
184429984,3cyclictest560-21gdbus22:00:012
184429984,3cyclictest31279-21smartctl19:35:142
184429984,3cyclictest31279-21smartctl19:35:142
184429984,3cyclictest29812-21awk20:45:002
184429984,3cyclictest25069-21cat00:05:162
184429984,3cyclictest21942-21ssh21:16:382
184429984,3cyclictest20890-21sh20:25:012
184429984,3cyclictest16325-21basename00:00:152
184429984,3cyclictest14545-21cron21:50:012
184429984,3cyclictest0-21swapper/221:05:132
184429984,3cyclictest0-21swapper/220:52:352
184429983,4cyclictest5861-21rm00:31:182
184429983,4cyclictest2630-21rm22:20:142
184429982,1cyclictest26925-21hostname22:15:162
184429981,5cyclictest9382-21ssh23:55:512
184429981,5cyclictest8850-21wc19:55:202
184429981,5cyclictest22173-21ssh23:08:042
184429981,5cyclictest18526-21taskset20:18:472
184429981,5cyclictest12539-21ssh21:11:092
184429981,3cyclictest4377-21ssh23:15:592
184429981,3cyclictest32178-21seq21:40:382
184429981,3cyclictest26388-21taskset20:35:162
184429980,3cyclictest31591-21apt-get22:55:132
184369987,1cyclictest22-21ksoftirqd/122:50:011
184369980,2cyclictest22996-21ssh23:08:381
184329983,3cyclictest275-21systemd-journal20:40:390
5786270,2sleep334-21ksoftirqd/323:54:333
184479976,1cyclictest3119-21fschecks_count22:20:173
184479974,2cyclictest16281-21sshd20:13:393
184479973,3cyclictest658-21snmpd20:28:243
184479973,3cyclictest275-21systemd-journal23:21:163
184479973,3cyclictest27399-11brltty20:42:493
184479973,1cyclictest0-21swapper/321:56:493
184479972,3cyclictest275-21systemd-journal22:55:003
184429976,1cyclictest2173-21apt-get20:55:012
184429974,2cyclictest4986-21munin-plugin-st19:50:012
184429974,2cyclictest30319-21apt-get20:45:012
184429974,2cyclictest1682-21grep19:40:172
184429973,3cyclictest28826-21cat19:30:152
184429973,3cyclictest24594-21grep19:20:162
184429973,3cyclictest18221-11brltty20:00:122
184429973,3cyclictest13063-21mailstats20:05:172
184429971,2cyclictest17956-21ssh23:24:262
184429971,1cyclictest9172-21diskmemload23:00:132
184429970,2cyclictest9172-21diskmemload22:10:082
184369973,3cyclictest9273-21df22:05:151
184369973,3cyclictest658-21snmpd21:29:191
184329973,3cyclictest658-21snmpd00:31:240
184329973,3cyclictest275-21systemd-journal23:47:390
184329973,3cyclictest275-21systemd-journal23:34:560
184329973,3cyclictest275-21systemd-journal21:10:000
184329973,3cyclictest0-21swapper/021:24:120
184329970,2cyclictest275-21systemd-journal23:40:010
12366270,0sleep30-21swapper/321:30:053
22211260,0sleep00-21swapper/021:35:190
2121260,0sleep00-21swapper/023:51:530
184479964,1cyclictest34-21ksoftirqd/319:40:023
184479964,1cyclictest34-21ksoftirqd/319:40:023
184479964,1cyclictest34-21ksoftirqd/319:35:013
184479964,1cyclictest32644-21apt-get19:40:023
184479963,2cyclictest6926-21sh21:26:203
184479963,2cyclictest658-21snmpd23:05:113
184479963,2cyclictest5401-21grep21:00:143
184479963,2cyclictest31447-21ls21:40:173
184479963,2cyclictest27601-21smart_sda22:15:203
184479963,2cyclictest13506-21ssh21:11:523
184479963,2cyclictest12093-21cat22:25:173
184479963,2cyclictest10114-21awk22:05:193
184479963,2cyclictest0-21swapper/322:46:343
184479962,3cyclictest658-21snmpd23:46:093
184479962,3cyclictest658-21snmpd23:30:533
184479962,3cyclictest658-21snmpd22:38:003
184479962,3cyclictest658-21snmpd20:33:573
184479962,3cyclictest658-21snmpd20:16:203
184479962,3cyclictest658-21snmpd19:55:143
184479962,3cyclictest658-21snmpd19:26:393
184479962,3cyclictest658-21snmpd00:31:093
184479962,3cyclictest32634-21sort22:00:123
184479962,3cyclictest275-21systemd-journal19:45:393
184479962,3cyclictest27399-11brltty22:30:493
184479962,3cyclictest26262-21cat20:35:153
184479962,3cyclictest22232-21ls19:15:153
184479962,2cyclictest275-21systemd-journal23:26:163
184479962,1cyclictest141rcu_preempt23:35:103
184479962,1cyclictest0-21swapper/323:40:213
184479962,1cyclictest0-21swapper/321:35:343
184479962,1cyclictest0-21swapper/300:28:193
184479962,1cyclictest0-21swapper/300:13:063
184479962,1cyclictest0-21swapper/300:06:013
184479960,6cyclictest0-21swapper/322:43:073
184479960,6cyclictest0-21swapper/321:51:173
184479960,3cyclictest6455-21ssh23:17:293
184479960,2cyclictest275-21systemd-journal20:45:013
184369966,0cyclictest0-21swapper/123:37:381
184369966,0cyclictest0-21swapper/123:32:431
184369963,2cyclictest9367-21ssh22:23:561
184369963,2cyclictest658-21snmpd23:15:581
184369963,2cyclictest6569-21ssh22:03:451
184369963,2cyclictest504-21dbus-daemon21:36:101
184369963,2cyclictest275-21systemd-journal19:29:211
184369963,2cyclictest275-21systemd-journal00:18:571
184369963,2cyclictest19250-21apt23:25:121
184369963,2cyclictest18607-21/usr/sbin/munin19:10:201
184369963,2cyclictest17682-21rm00:20:041
184369963,2cyclictest14159-21sh00:36:021
184369963,2cyclictest13148-21ssh23:58:351
184369963,2cyclictest11807-21awk22:25:141
184369963,1cyclictest0-21swapper/122:12:051
184369963,1cyclictest0-21swapper/121:20:581
184369963,1cyclictest0-21swapper/100:01:131
184369962,3cyclictest6600-21wc19:50:191
184369962,3cyclictest658-21snmpd23:52:051
184369962,3cyclictest658-21snmpd23:46:171
184369962,3cyclictest658-21snmpd22:51:321
184369962,3cyclictest658-21snmpd22:42:161
184369962,3cyclictest658-21snmpd22:31:031
184369962,3cyclictest658-21snmpd21:45:091
184369962,3cyclictest658-21snmpd20:41:051
184369962,3cyclictest658-21snmpd20:00:171
184369962,3cyclictest658-21snmpd19:59:581
184369962,3cyclictest658-21snmpd19:42:131
184369962,3cyclictest658-21snmpd19:20:401
184369962,3cyclictest658-21snmpd00:32:191
184369962,3cyclictest658-21snmpd00:06:211
184369962,3cyclictest504-21dbus-daemon23:03:191
184369962,3cyclictest32014-21readlink22:00:021
184369962,3cyclictest30736-21irqstats21:40:131
184369962,3cyclictest3048-21cat20:55:131
184369961,3cyclictest275-21systemd-journal20:30:451
184369961,3cyclictest2339-21dump-pmu-power00:30:001
184369961,1cyclictest28803-21apt-get22:35:141
184369960,6cyclictest0-21swapper/123:41:291
184369960,6cyclictest0-21swapper/121:31:331
184369960,0cyclictest0-21swapper/123:21:451
184329966,0cyclictest0-21swapper/023:25:250
184329965,0cyclictest0-21swapper/000:05:130
184329963,2cyclictest275-21systemd-journal21:52:280
184329963,2cyclictest2303-21ssh22:38:230
184329963,2cyclictest18956-21cat22:10:190
184329963,2cyclictest14242-21ssh23:21:460
184329963,2cyclictest1419-21ssh21:41:500
184329963,2cyclictest14157-21sh00:17:420
184329963,2cyclictest11024-21sort22:25:000
184329962,3cyclictest8184-21cat23:00:130
184329962,3cyclictest7802-21ls19:55:130
184329962,3cyclictest7302-21cat23:55:130
184329962,3cyclictest7063-21cat21:45:160
184329962,3cyclictest674-21lldpd23:44:350
184329962,3cyclictest658-21snmpd22:03:300
184329962,3cyclictest658-21snmpd20:13:390
184329962,3cyclictest658-21snmpd19:37:370
184329962,3cyclictest658-21snmpd19:37:370
184329962,3cyclictest658-21snmpd19:16:310
184329962,3cyclictest658-21snmpd00:27:280
184329962,3cyclictest658-21snmpd00:00:060
184329962,3cyclictest31349-21sed20:45:180
184329962,3cyclictest275-21systemd-journal22:56:120
184329962,3cyclictest275-21systemd-journal21:30:580
184329962,3cyclictest26543-21expr22:15:130
184329962,3cyclictest23875-21grep19:20:130
184329962,3cyclictest18277-21diskstats00:20:120
184329962,3cyclictest12592-21cat20:05:140
184329962,3cyclictest11820-21expr00:35:100
184329962,3cyclictest11014-21sed20:00:200
184329962,2cyclictest5499-21ssh00:12:430
184329962,2cyclictest275-21systemd-journal20:50:560
184329962,1cyclictest0-21swapper/022:45:150
184329961,4cyclictest9082-21wc22:05:140
184329960,6cyclictest0-21swapper/023:15:330
184329960,0cyclictest0-21swapper/020:24:000
184479952,2cyclictest9775-21cpuspeed20:00:123
184479952,2cyclictest658-21snmpd20:55:063
184479952,2cyclictest658-21snmpd00:35:073
184479952,2cyclictest5987-21cat19:50:153
184479952,2cyclictest19235-21cat20:20:123
184479952,2cyclictest18620-21cat19:10:133
184479952,2cyclictest12241-21expr20:05:113
184479951,3cyclictest24089-21/usr/sbin/munin19:20:123
184479950,3cyclictest275-21systemd-journal20:50:053
184369953,1cyclictest31515-21sh22:55:091
184369953,1cyclictest21204-21cat20:25:131
184369953,1cyclictest16075-21open_inodes21:50:161
184369953,1cyclictest0-21swapper/120:45:181
184369952,2cyclictest9527-21ssh21:10:061
184369952,2cyclictest830-21cat20:50:161
184369952,2cyclictest3585-21expr19:45:161
184369952,2cyclictest29783-21chrt19:31:001
184369952,2cyclictest26932-21hostname22:15:161
184369952,2cyclictest25746-21cut20:35:121
184369952,2cyclictest25730-21expr23:10:131
184369952,2cyclictest21329-21grep19:15:011
184369952,2cyclictest19069-21tr20:20:121
184369952,2cyclictest0-21swapper/120:18:581
184369951,3cyclictest8149-21ntp_states21:05:181
184369951,3cyclictest30630-21packagekitd19:35:011
184369951,3cyclictest30630-21packagekitd19:35:011
184369951,3cyclictest14697-21expr20:10:121
184369951,3cyclictest12593-21cat20:05:141
184329953,1cyclictest663-21runrttasks19:50:130
184329952,2cyclictest658-21snmpd20:56:160
184329952,2cyclictest5205-21cat22:40:140
184329952,2cyclictest504-21dbus-daemon20:34:480
184329952,2cyclictest27483-21vmstat19:25:210
184329952,2cyclictest25968-21df20:35:120
184329952,2cyclictest25770-21expr23:10:130
184329952,2cyclictest24154-21df21:55:140
184329952,2cyclictest19525-21sh23:06:090
184329952,2cyclictest17241-21sed20:15:150
184329952,2cyclictest1382-21tail19:40:140
184329951,3cyclictest3956-21ntpq19:45:200
184329951,3cyclictest29385-21cat19:30:180
184329951,3cyclictest21117-21/usr/sbin/munin20:25:160
184329951,3cyclictest11785-21ssh22:25:140
184329951,2cyclictest275-21systemd-journal19:12:400
184369940,3cyclictest4984-21grep21:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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