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2026-06-09 - 05:17
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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 Tue Jun 09, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190072326296,20sleep20-21swapper/219:08:422
190992296270,17sleep10-21swapper/119:09:541
188022290228,21sleep00-21swapper/019:06:230
189832261230,20sleep30-21swapper/319:08:223
252272650,0sleep00-21swapper/022:17:560
244472600,0sleep00-21swapper/023:55:210
236262600,0sleep20-21swapper/200:35:122
188232560,0sleep218827-21apt20:20:012
29752200,0sleep30-21swapper/320:55:123
113912200,0sleep20-21swapper/221:50:152
256102190,0sleep10-21swapper/122:37:471
280672180,1sleep30-21swapper/323:58:093
247912180,0sleep0131rcuc/000:35:180
146012180,0sleep00-21swapper/000:09:510
295362160,0sleep00-21swapper/022:00:210
108712150,0sleep10-21swapper/123:08:331
181302130,0sleep20-21swapper/221:34:592
141642130,0sleep30-21swapper/300:29:193
80762120,0sleep10-21swapper/119:55:131
1921999113,6cyclictest24266-21sh21:38:301
1921999113,5cyclictest30266-21/usr/sbin/munin22:40:191
1921999113,4cyclictest31664-21ssh23:20:301
1921999113,4cyclictest29846-21rm23:40:001
1921999113,3cyclictest9016-21diskmemload23:46:231
1921999113,3cyclictest31628-21expr00:00:111
1921999113,3cyclictest29837-21sh23:59:301
1921999113,3cyclictest2557-21sh23:42:341
1921999113,2cyclictest9016-21diskmemload22:15:211
1921999112,6cyclictest19497-21sh23:52:551
1921999112,6cyclictest16408-21ssh21:14:231
1921999112,6cyclictest14249-21ssh00:09:341
1921999112,6cyclictest10784-21ssh21:50:021
1921999112,4cyclictest6263-21rm21:27:241
1922499100,2cyclictest22701-21ssh21:17:502
1921999106,3cyclictest21334-21apt-get20:25:111
1921999106,3cyclictest19380-21ssh21:55:011
1921999104,2cyclictest2603-21ssh23:03:291
1921999104,2cyclictest2603-21ssh23:03:291
1921999103,5cyclictest18967-21ssh23:13:261
1921999103,4cyclictest27603-21taskset19:25:171
1921999103,3cyclictest9016-21diskmemload22:08:101
1921999103,3cyclictest7719-21ssh22:46:161
1921999103,3cyclictest31819-21rm22:02:071
1921999103,3cyclictest31475-21rm21:23:131
1921999103,3cyclictest30889-21sh00:19:441
1921999103,3cyclictest29939-21taskset20:44:441
1921999103,3cyclictest18923-21sh22:34:021
1921999103,3cyclictest11002-21load21:30:161
1921999103,2cyclictest9016-21diskmemload21:46:101
1921999103,2cyclictest3737-21grep20:55:181
1921999102,6cyclictest7379-21ssh00:25:071
1921999102,6cyclictest16455-21sh23:30:591
1921999102,5cyclictest24390-21sh22:56:401
1921999102,5cyclictest17190-21ssh00:10:271
1921999102,5cyclictest16364-21ssh22:12:311
1921999102,3cyclictest9016-21diskmemload22:50:141
1921999102,3cyclictest31694-21rm22:21:321
1921999102,3cyclictest21259-21sh00:33:321
1921999102,2cyclictest9016-21diskmemload21:17:511
1921999102,2cyclictest0-21swapper/122:28:551
192249997,1cyclictest28-21ksoftirqd/221:39:592
192199995,3cyclictest27733-21sh20:40:001
192199995,2cyclictest275-21systemd-journal20:05:011
192199994,3cyclictest275-21systemd-journal20:53:001
192199993,2cyclictest23405-21ssh23:15:291
192199992,3cyclictest9016-21diskmemload00:35:281
192199992,3cyclictest9016-21diskmemload00:20:081
192199992,3cyclictest0-21swapper/123:25:081
192199992,2cyclictest9016-21diskmemload21:40:121
24260280,1sleep00-21swapper/021:57:410
192289984,3cyclictest504-21dbus-daemon19:40:193
192289981,5cyclictest12792-21ssh21:50:223
192249987,1cyclictest28-21ksoftirqd/200:00:012
192249986,1cyclictest28-21ksoftirqd/220:50:002
192199985,2cyclictest275-21systemd-journal19:47:131
192199985,2cyclictest23553-21apt-get20:30:101
192199984,3cyclictest7352-21expr21:05:121
192199984,3cyclictest5735-21/usr/sbin/munin21:00:161
192199984,3cyclictest5735-21/usr/sbin/munin21:00:161
192199984,3cyclictest31094-21sed20:45:171
192199984,3cyclictest29244-21/usr/sbin/munin19:30:121
192199984,3cyclictest24799-21cstates19:20:111
192199984,3cyclictest21530-21munin-node19:15:011
192199984,3cyclictest21530-21munin-node19:15:011
192199984,3cyclictest2014-21uname19:40:171
192199984,3cyclictest19312-21cat20:20:101
192199984,3cyclictest17213-21expr20:15:121
192199984,3cyclictest12880-21tune2fs20:05:171
192199984,3cyclictest1135-21cut19:40:011
14933280,0sleep00-21swapper/023:10:210
2848270,1sleep20-21swapper/220:55:122
192289974,2cyclictest34-21ksoftirqd/323:10:013
192289974,2cyclictest31331-21cron00:40:003
192289973,3cyclictest658-21snmpd21:41:283
192289973,3cyclictest20694-21apt-get22:35:113
192289973,3cyclictest1-21systemd00:00:013
192289972,4cyclictest32413-21cat00:20:133
192249976,1cyclictest28-21ksoftirqd/222:40:002
192249974,2cyclictest275-21systemd-journal22:10:002
192249973,3cyclictest275-21systemd-journal23:50:182
192249973,3cyclictest275-21systemd-journal19:15:022
192249973,3cyclictest275-21systemd-journal00:30:002
192249970,6cyclictest275-21systemd-journal19:58:232
192199974,2cyclictest14377-21cron20:10:011
192199974,2cyclictest0-21swapper/119:50:121
192169974,2cyclictest504-21dbus-daemon00:16:580
192169974,2cyclictest3877-21sshd00:02:550
192169974,2cyclictest25689-21sshd22:37:510
192169973,3cyclictest275-21systemd-journal22:50:150
192169973,3cyclictest26718-21cat21:20:140
8057260,0sleep30-21swapper/322:07:303
192289964,1cyclictest59672sleep323:45:053
192289963,2cyclictest663-21runrttasks00:12:513
192289963,2cyclictest658-21snmpd20:50:543
192289963,2cyclictest658-21snmpd20:31:403
192289963,2cyclictest30877-21rm22:01:233
192289963,2cyclictest275-21systemd-journal00:06:083
192289963,2cyclictest24570-21ntpq00:15:173
192289963,2cyclictest21373-21ssh00:33:373
192289963,2cyclictest19573-21apt21:55:113
192289963,2cyclictest16670-21ssh21:14:363
192289962,3cyclictest674-21lldpd22:12:113
192289962,3cyclictest658-21snmpd23:36:143
192289962,3cyclictest658-21snmpd23:20:023
192289962,3cyclictest658-21snmpd22:40:163
192289962,3cyclictest658-21snmpd21:45:293
192289962,3cyclictest658-21snmpd21:32:073
192289962,3cyclictest658-21snmpd21:17:233
192289962,3cyclictest658-21snmpd20:35:133
192289962,3cyclictest658-21snmpd20:28:003
192289962,3cyclictest658-21snmpd20:18:123
192289962,3cyclictest658-21snmpd20:05:113
192289962,3cyclictest658-21snmpd19:50:593
192289962,3cyclictest658-21snmpd19:14:113
192289962,3cyclictest5476-21cat21:00:143
192289962,3cyclictest5476-21cat21:00:133
192289962,3cyclictest29931-21cat19:30:143
192289962,3cyclictest2568-21cat21:25:143
192289962,3cyclictest25079-21sshd22:17:483
192289962,1cyclictest50850irq/136-enp4s0-22:47:013
192289962,1cyclictest0-21swapper/323:25:453
192289962,1cyclictest0-21swapper/322:31:133
192289962,1cyclictest0-21swapper/322:20:453
192289961,4cyclictest27242-21gltestperf19:25:153
192289961,4cyclictest0-21swapper/323:30:103
192289961,3cyclictest674-21lldpd23:50:503
192289960,6cyclictest0-21swapper/323:41:023
192289960,6cyclictest0-21swapper/323:00:243
192289960,6cyclictest0-21swapper/323:00:243
192289960,6cyclictest0-21swapper/322:25:083
192289960,6cyclictest0-21swapper/321:35:203
192289960,6cyclictest0-21swapper/320:00:183
192289960,3cyclictest17672-21sshd22:52:453
192289960,3cyclictest15661-21ssh23:10:533
192249966,0cyclictest0-21swapper/221:40:132
192249966,0cyclictest0-21swapper/200:22:212
192249964,2cyclictest28-21ksoftirqd/220:40:002
192249963,2cyclictest658-21snmpd22:49:382
192249963,2cyclictest658-21snmpd00:34:162
192249963,2cyclictest504-21dbus-daemon19:30:012
192249963,2cyclictest4817-21apt21:00:122
192249963,2cyclictest4817-21apt21:00:122
192249963,2cyclictest30270-21fschecks_time23:20:132
192249963,2cyclictest28980-21ssh23:39:202
192249963,2cyclictest27976-21ssh00:17:282
192249963,2cyclictest275-21systemd-journal23:47:342
192249963,2cyclictest20806-21cat22:15:122
192249963,2cyclictest10725-21sh23:08:262
192249963,1cyclictest0-21swapper/223:27:052
192249963,1cyclictest0-21swapper/221:28:552
192249962,3cyclictest658-21snmpd23:30:362
192249962,3cyclictest658-21snmpd23:17:382
192249962,3cyclictest658-21snmpd22:32:222
192249962,3cyclictest658-21snmpd19:44:132
192249962,3cyclictest658-21snmpd19:21:072
192249962,3cyclictest658-21snmpd00:06:272
192249962,3cyclictest5035-21cat22:25:142
192249962,3cyclictest30474-21cron00:00:002
192249962,3cyclictest28690-21cat20:40:152
192249962,3cyclictest20068-21ntpq20:20:162
192249962,3cyclictest15610-21ntpq20:10:192
192249962,3cyclictest13208-21cat22:50:112
192249962,3cyclictest12844-21cut20:05:172
192249962,1cyclictest0-21swapper/223:43:442
192249961,3cyclictest28789-21rm21:21:082
192249960,6cyclictest0-21swapper/223:11:092
192249960,6cyclictest0-21swapper/222:57:062
192249960,5cyclictest16051-21kernelversion00:10:142
192249960,3cyclictest275-21systemd-journal22:42:302
192249960,0cyclictest0-21swapper/223:04:552
192249960,0cyclictest0-21swapper/223:04:552
192249960,0cyclictest0-21swapper/221:48:252
192169966,0cyclictest0-21swapper/021:42:020
192169963,2cyclictest658-21snmpd20:12:260
192169963,2cyclictest504-21dbus-daemon23:00:000
192169963,2cyclictest4868-21rm21:45:410
192169963,2cyclictest30201-21ntp_kernel_err23:00:150
192169963,2cyclictest30201-21ntp_kernel_err23:00:150
192169963,2cyclictest30054-21cat23:20:130
192169963,2cyclictest27118-21rm23:18:230
192169963,2cyclictest16252-21ssh00:30:150
192169963,2cyclictest15597-21ls00:10:120
192169963,2cyclictest1-21systemd19:32:070
192169963,2cyclictest0-21swapper/023:51:590
192169963,2cyclictest0-21swapper/000:28:070
192169963,1cyclictest0-21swapper/023:09:350
192169962,3cyclictest8626-21cat19:55:150
192169962,3cyclictest6798-21expr23:45:140
192169962,3cyclictest658-21snmpd23:43:140
192169962,3cyclictest658-21snmpd23:31:240
192169962,3cyclictest658-21snmpd22:23:310
192169962,3cyclictest658-21snmpd21:39:410
192169962,3cyclictest658-21snmpd21:15:100
192169962,3cyclictest658-21snmpd21:05:000
192169962,3cyclictest658-21snmpd21:04:330
192169962,3cyclictest658-21snmpd21:04:330
192169962,3cyclictest658-21snmpd20:51:550
192169962,3cyclictest658-21snmpd20:40:160
192169962,3cyclictest658-21snmpd19:15:160
192169962,3cyclictest30890-21if_enp4s020:45:150
192169962,3cyclictest275-21systemd-journal19:23:170
192169962,3cyclictest23193-21ntpq23:35:160
192169962,3cyclictest23049-21sshd20:27:160
192169962,3cyclictest18031-21sed21:35:000
192169962,3cyclictest12342-21which21:50:190
192169962,3cyclictest11696-21grep20:00:180
192169961,3cyclictest674-21lldpd23:29:140
192169961,3cyclictest275-21systemd-journal22:25:100
192169961,1cyclictest141rcu_preempt21:25:140
192169960,6cyclictest0-21swapper/022:40:370
192169960,4cyclictest275-21systemd-journal22:07:160
192169960,0cyclictest0-21swapper/022:12:360
17689260,1sleep00-21swapper/022:33:050
192289952,2cyclictest7962-21cat19:55:123
192289952,2cyclictest7917-21grep21:05:163
192289952,2cyclictest658-21snmpd22:55:053
192289952,2cyclictest3734-21cstates19:45:133
192289952,2cyclictest28605-21tail20:40:143
192289952,2cyclictest25934-21ssh21:20:103
192289952,2cyclictest22183-21interrupts19:15:023
192289952,2cyclictest22168-21cat23:15:133
192289952,2cyclictest14942-21expr20:10:143
192289951,3cyclictest658-21snmpd20:20:093
192289951,3cyclictest275-21systemd-journal19:20:163
192289950,4cyclictest30437-21cstates20:45:123
192289950,3cyclictest275-21systemd-journal19:35:013
192249954,1cyclictest28-21ksoftirqd/221:55:012
192249953,1cyclictest663-21runrttasks19:30:102
192249953,1cyclictest5832-21cpuspeed_turbos19:50:122
192249953,1cyclictest4123-21head19:45:152
192249952,2cyclictest7037-21cat21:05:122
192249952,2cyclictest658-21snmpd20:30:302
192249952,2cyclictest488-21cstates20:50:122
192249952,2cyclictest32012-21head19:35:142
192249952,2cyclictest275-21systemd-journal22:00:092
192249952,2cyclictest22353-21pmu-power20:25:172
192249952,1cyclictest0-21swapper/222:20:012
192249951,3cyclictest275-21systemd-journal21:10:312
192249951,3cyclictest22210-21ntp_states19:15:032
192249951,3cyclictest10643-21cut20:00:132
192249950,4cyclictest12567-21cut22:10:142
192169953,1cyclictest19560-21tr19:10:130
192169953,1cyclictest19106-21apt-get20:20:090
192169952,2cyclictest658-21snmpd19:40:020
192169952,2cyclictest5921-21expr19:50:130
192169952,2cyclictest32586-21ssh00:20:150
192169952,2cyclictest2899-21expr20:55:120
192169952,2cyclictest275-21systemd-journal20:35:050
192169952,2cyclictest26960-21expr19:25:140
192169952,2cyclictest24028-21/usr/sbin/munin20:30:140
192169952,2cyclictest16961-21cat20:15:120
192169952,2cyclictest13982-21users20:05:230
192169952,1cyclictest0-21swapper/021:10:180
192169951,3cyclictest658-21snmpd22:45:100
192169950,4cyclictest3507-21/usr/sbin/munin19:45:130
192169950,4cyclictest31637-21expr19:35:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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