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2025-12-07 - 06:30
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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 Sun Dec 07, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290012295226,22sleep00-21swapper/019:07:460
288712282247,22sleep10-21swapper/119:06:261
290652272238,22sleep30-21swapper/319:08:383
288672259224,22sleep20-21swapper/219:06:242
170992630,0sleep10-21swapper/123:06:401
293872620,1sleep30-21swapper/322:04:393
154042620,0sleep00-21swapper/023:05:190
127222620,0sleep30-21swapper/321:51:263
5472590,0sleep00-21swapper/019:15:140
27112570,0sleep20-21swapper/222:32:252
21542560,0sleep00-21swapper/021:20:150
85502550,0sleep00-21swapper/023:00:180
255592210,0sleep00-21swapper/023:13:400
270562200,0sleep20-21swapper/200:01:512
2928399153,6cyclictest0-21swapper/123:55:021
243632140,0sleep30-21swapper/323:35:583
6382130,0sleep30-21swapper/322:55:133
2928399132,7cyclictest9043-21ssh23:00:241
2928399131,9cyclictest0-21swapper/122:02:271
215292130,0sleep20-21swapper/223:34:522
2928399122,6cyclictest0-21swapper/121:54:301
2928399120,3cyclictest17192-21sort19:50:221
2928399120,2cyclictest5145-21ssh21:22:171
2928399120,2cyclictest22034-21ssh21:59:071
160802120,0sleep00-21swapper/023:54:410
2928399112,5cyclictest1763-21sh00:07:061
2928399110,3cyclictest32182-21sh21:41:561
2928399110,3cyclictest19951-21sh22:20:391
2928399110,3cyclictest1006-21chrt20:25:381
2928399110,2cyclictest5845-21ssh22:59:011
2928399110,2cyclictest3304-21ssh23:20:191
2928399110,2cyclictest30189-21ssh22:29:051
2928399110,2cyclictest0-21swapper/122:05:151
2928399110,1cyclictest29284-21ssh22:52:001
2928399110,1cyclictest16734-21ssh00:18:231
2928399110,1cyclictest15522-21cut21:00:151
2928399110,1cyclictest14827-21ssh22:41:101
2928399103,6cyclictest30654-21snmpd00:11:171
2928399103,6cyclictest29215-21sh21:16:101
2928399101,2cyclictest508-21dbus-daemon23:32:111
2928399101,2cyclictest19982-21systemd-journal23:51:231
2928399101,2cyclictest19982-21systemd-journal19:16:521
2928399101,1cyclictest19740-21apt-get21:10:141
2928399101,1cyclictest0-21swapper/122:35:271
2928399100,9cyclictest19760-21ntpq00:20:171
2928399100,3cyclictest19982-21systemd-journal19:32:251
2928399100,2cyclictest31612-21munin-node22:30:121
2928399100,2cyclictest30901-21ssh23:40:371
2928399100,2cyclictest29261-21ssh00:29:041
2928399100,2cyclictest27792-21ssh23:39:231
2928399100,2cyclictest19982-21systemd-journal20:54:541
2928399100,1cyclictest22854-21apt-get20:05:021
2928399100,1cyclictest19274-21munin-run21:10:001
2928399100,1cyclictest0-21swapper/100:30:111
2928399100,1cyclictest0-21swapper/100:04:201
195762100,0sleep00-21swapper/021:10:060
292919995,3cyclictest19982-21systemd-journal00:03:533
292919994,3cyclictest19982-21systemd-journal00:26:253
292879995,2cyclictest19982-21systemd-journal00:32:172
292879994,3cyclictest19982-21systemd-journal21:52:292
292839992,6cyclictest23818-21grep21:35:201
292839992,4cyclictest29009-21chrt20:16:331
292839991,2cyclictest8633-21sh21:25:121
292839991,1cyclictest3223-21apt-get23:45:121
292839991,0cyclictest4415-21apt-get19:25:131
292839990,3cyclictest9089-21cstates19:35:141
292839990,3cyclictest7868-21sshd20:42:301
292839990,3cyclictest5741-21ssh00:35:211
292839990,3cyclictest30464-21ntp_states19:10:181
292839990,3cyclictest2957-21cat19:20:161
292839990,3cyclictest25373-21ls20:10:171
292839990,3cyclictest19117-21sed19:55:181
292839990,3cyclictest1793-21grep20:30:151
292839990,2cyclictest6227-21taskset21:46:371
292839990,2cyclictest31087-21sed20:20:201
292839990,2cyclictest22357-21http20:05:011
292839990,2cyclictest19982-21systemd-journal20:57:391
292839990,2cyclictest13100-21cron19:45:021
292839990,2cyclictest11004-21turbostat.cron22:15:001
292839990,1cyclictest4548-21if_err_enp4s020:35:161
292839990,1cyclictest30441-21ssh23:16:401
292839990,1cyclictest29741-11brltty22:48:241
292839990,1cyclictest17163-21users21:30:231
292839990,1cyclictest13365-21apt-get19:45:141
292839990,1cyclictest13365-21apt-get19:45:141
292839990,1cyclictest0-21swapper/123:26:461
292839990,1cyclictest0-21swapper/120:48:221
292809990,7cyclictest19982-21systemd-journal19:10:110
292919985,2cyclictest34-21ksoftirqd/321:40:013
292919981,2cyclictest19982-21systemd-journal23:48:113
292879986,1cyclictest28-21ksoftirqd/200:00:012
292879983,3cyclictest19982-21systemd-journal20:41:322
292879983,3cyclictest19982-21systemd-journal19:35:132
292879980,7cyclictest1-21systemd20:35:422
292839980,3cyclictest12221-21sort22:15:171
292839980,2cyclictest20751-21ssh23:10:131
292809984,3cyclictest19982-21systemd-journal21:35:480
292809984,3cyclictest11972-21grep22:15:150
292809984,2cyclictest19982-21systemd-journal00:07:450
292809983,3cyclictest7661-21lldpd21:32:380
292809983,3cyclictest19982-21systemd-journal20:36:330
292919976,1cyclictest34-21ksoftirqd/300:00:013
292919975,2cyclictest34-21ksoftirqd/319:50:013
292919975,2cyclictest34-21ksoftirqd/319:50:013
292919974,2cyclictest31294-21tail00:05:153
292919974,2cyclictest21530-21rm23:34:533
292919973,3cyclictest508-21dbus-daemon21:55:243
292919973,3cyclictest508-21dbus-daemon21:17:513
292919973,3cyclictest30654-21snmpd22:07:183
292919973,3cyclictest19982-21systemd-journal20:48:423
292919973,3cyclictest15894-21entropy21:30:153
292919973,1cyclictest0-21swapper/323:10:023
292919973,1cyclictest0-21swapper/322:25:113
292919973,1cyclictest0-21swapper/321:21:123
292919970,7cyclictest0-21swapper/323:40:273
292919970,3cyclictest19982-21systemd-journal21:47:553
292879974,2cyclictest1-21systemd20:57:252
292879973,3cyclictest508-21dbus-daemon22:58:502
292879973,3cyclictest508-21dbus-daemon20:50:442
292879973,3cyclictest508-21dbus-daemon19:41:292
292879973,3cyclictest29741-11brltty00:08:042
292879973,3cyclictest20614-21expr21:10:182
292879973,3cyclictest19982-21systemd-journal21:20:002
292879973,3cyclictest19982-21systemd-journal19:54:572
292879973,3cyclictest13467-21cat19:45:142
292879973,3cyclictest13467-21cat19:45:142
292879973,2cyclictest19982-21systemd-journal23:48:122
292879973,2cyclictest19982-21systemd-journal20:45:012
292879973,1cyclictest0-21swapper/223:41:132
292879972,3cyclictest7661-21lldpd21:49:542
292879970,7cyclictest26351-21ssh23:14:302
292879970,6cyclictest30959-21fschecks_count22:05:162
292809975,1cyclictest12692-21users19:40:220
292809974,2cyclictest19278-21cut00:20:140
292809974,2cyclictest11736-21in:imuxsock23:19:150
292809973,3cyclictest9653-21memory23:25:140
292809973,3cyclictest508-21dbus-daemon22:35:530
292809973,3cyclictest508-21dbus-daemon20:01:300
292809973,3cyclictest19982-21systemd-journal20:15:000
292809973,3cyclictest1-21systemd00:00:340
292809973,3cyclictest0-21swapper/022:07:000
292809973,3cyclictest0-21swapper/021:55:180
292809973,3cyclictest0-21swapper/000:25:180
292809973,1cyclictest0-21swapper/023:57:460
292809973,1cyclictest0-21swapper/000:19:110
292809972,3cyclictest19982-21systemd-journal20:32:350
292809972,3cyclictest19982-21systemd-journal19:30:020
292809971,3cyclictest6198-21rm22:59:230
292809970,4cyclictest12573-21awk20:55:000
17176270,0sleep30-21swapper/322:43:323
16967270,1sleep20-21swapper/221:30:222
4031260,5sleep20-21swapper/200:35:112
292919964,1cyclictest11736-21in:imuxsock20:22:363
292919963,2cyclictest5927-21rm00:35:363
292919963,2cyclictest411-21sed22:30:203
292919963,2cyclictest30037-21ntp_states21:40:193
292919963,2cyclictest29483-21rm22:52:103
292919963,2cyclictest20415-21cpu20:00:153
292919963,2cyclictest18243-21cpuspeed_turbos22:20:143
292919963,2cyclictest1390-21latency_hist20:30:003
292919963,2cyclictest12250-21expr00:15:143
292919963,2cyclictest1-21systemd19:43:593
292919963,2cyclictest11127-21wc23:50:193
292919963,2cyclictest10092-21swap19:35:193
292919963,1cyclictest0-21swapper/323:20:183
292919962,3cyclictest7661-21lldpd20:07:063
292919962,3cyclictest5043-21mailstats20:35:193
292919962,3cyclictest4731-21expr19:25:143
292919962,3cyclictest30654-21snmpd23:00:113
292919962,3cyclictest30654-21snmpd22:46:223
292919962,3cyclictest30654-21snmpd22:35:373
292919962,3cyclictest30654-21snmpd21:26:083
292919962,3cyclictest30654-21snmpd20:57:403
292919962,3cyclictest30654-21snmpd20:41:523
292919962,3cyclictest30654-21snmpd20:33:193
292919962,3cyclictest30654-21snmpd19:51:513
292919962,3cyclictest30654-21snmpd19:14:213
292919962,3cyclictest2968-21cat19:20:163
292919962,3cyclictest28261-21memory23:15:213
292919962,3cyclictest28030-21cat20:15:173
292919962,3cyclictest20385-21smartctl21:10:183
292919962,3cyclictest19982-21systemd-journal22:10:263
292919962,3cyclictest19982-21systemd-journal20:10:413
292919962,3cyclictest0-21swapper/300:22:193
292919962,2cyclictest19982-21systemd-journal22:15:273
292919962,1cyclictest0-21swapper/300:30:063
292919962,1cyclictest0-21swapper/300:14:543
292919961,4cyclictest0-21swapper/323:05:013
292919961,3cyclictest19982-21systemd-journal20:51:333
292919961,3cyclictest19982-21systemd-journal19:32:183
292919960,6cyclictest0-21swapper/323:26:523
292919960,6cyclictest0-21swapper/319:16:333
292919960,3cyclictest19277-21ls21:10:013
292879964,1cyclictest203422sleep220:00:152
292879963,2cyclictest7434-21ls23:00:142
292879963,2cyclictest5814-21which00:10:162
292879963,2cyclictest508-21dbus-daemon23:25:062
292879963,2cyclictest508-21dbus-daemon19:24:222
292879963,2cyclictest3989-21sh23:20:362
292879963,2cyclictest309-21ntpq20:25:172
292879963,2cyclictest30394-21cat20:20:162
292879963,2cyclictest27414-21ssh23:38:572
292879963,2cyclictest25836-21ssh22:50:052
292879963,2cyclictest24871-21cat22:25:152
292879963,2cyclictest23371-21processes21:35:172
292879963,2cyclictest20377-21unixbench_multi00:20:222
292879963,2cyclictest16917-21expr21:55:132
292879962,3cyclictest7661-21lldpd20:30:062
292879962,3cyclictest7580-21ntpq19:30:182
292879962,3cyclictest5412-21sed19:25:192
292879962,3cyclictest508-21dbus-daemon22:20:262
292879962,3cyclictest30654-21snmpd23:15:242
292879962,3cyclictest29496-21apt-get19:10:122
292879962,3cyclictest27720-21expr20:15:142
292879962,3cyclictest26860-21sshd20:12:262
292879962,3cyclictest22886-21cat20:05:132
292879962,3cyclictest2073-21cat21:20:142
292879962,3cyclictest19982-21systemd-journal22:10:072
292879962,3cyclictest1943-21sendmail-msp19:20:012
292879962,3cyclictest12170-21expr00:15:152
292879962,3cyclictest11452-21cat23:50:212
292879962,3cyclictest0-21swapper/200:25:372
292879962,1cyclictest0-21swapper/221:25:082
292879961,4cyclictest15322-21wc23:05:192
292879961,3cyclictest19982-21systemd-journal22:45:032
292879961,3cyclictest19982-21systemd-journal21:09:062
292879961,2cyclictest29741-11brltty22:40:032
292879961,2cyclictest10076-21ssh22:38:072
292879961,1cyclictest28-21ksoftirqd/222:15:342
292879961,1cyclictest141rcu_preempt21:40:132
292879960,5cyclictest15045-21/usr/sbin/munin21:00:192
292879960,2cyclictest23444-21/usr/sbin/munin22:00:222
292809964,1cyclictest668-21runrttasks00:35:440
292809963,2cyclictest31904-21sh22:30:150
292809963,2cyclictest30934-21ssh21:40:420
292809963,2cyclictest30654-21snmpd20:15:000
292809963,2cyclictest30046-21sh22:28:580
292809963,2cyclictest19372-21cat22:45:140
292809963,2cyclictest17022-21unixbench-2d23:30:260
292809963,1cyclictest0-21swapper/022:40:300
292809962,3cyclictest8512-21expr20:45:150
292809962,3cyclictest6714-21cat19:30:150
292809962,3cyclictest5546-21cat22:10:190
292809962,3cyclictest508-21dbus-daemon20:44:030
292809962,3cyclictest30654-21snmpd22:02:180
292809962,3cyclictest30654-21snmpd21:02:010
292809962,3cyclictest30654-21snmpd19:58:090
292809962,3cyclictest30294-21cat20:20:160
292809962,3cyclictest26901-21cat21:15:130
292809962,3cyclictest26088-21expr22:50:120
292809962,3cyclictest1-21systemd22:23:460
292809962,3cyclictest10299-21expr21:50:140
292809962,3cyclictest0-21swapper/023:45:190
292809962,3cyclictest0-21swapper/023:40:150
292809962,3cyclictest0-21swapper/023:35:070
292809962,1cyclictest0-21swapper/023:21:120
292809962,1cyclictest0-21swapper/000:30:090
292809961,3cyclictest502-21systemd-logind21:05:190
292809961,3cyclictest19982-21systemd-journal19:47:220
292809961,3cyclictest19982-21systemd-journal19:47:220
292809960,5cyclictest8600-21/usr/sbin/munin21:25:140
292809960,5cyclictest13780-21ntp_states20:55:190
292809960,3cyclictest8897-21rm00:12:260
292809960,2cyclictest9840-21ntp_states19:35:180
292809960,2cyclictest3065450snmpd21:45:260
292919952,2cyclictest18674-21tail19:55:153
292919952,2cyclictest15274-21cat21:00:153
292879951,3cyclictest18642-21grep19:55:162
292809952,2cyclictest31899-21cpuspeed20:25:130
292809952,2cyclictest30654-21snmpd19:20:060
292809952,2cyclictest15817-21cmp19:50:010
292809951,3cyclictest23049-21tr20:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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