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2026-05-02 - 12:23
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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 May 02, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
326512297271,17sleep20-21swapper/219:05:102
19882283253,20sleep10-21swapper/119:07:061
19532274215,48sleep30-21swapper/319:06:393
19422273243,19sleep00-21swapper/019:06:330
161642600,0sleep00-21swapper/021:43:240
108452580,0sleep10-21swapper/122:38:001
229652560,0sleep00-21swapper/021:28:150
73862540,0sleep00-21swapper/022:16:130
16462530,0sleep10-21swapper/123:30:171
63682180,0sleep20-21swapper/223:33:352
261492150,0sleep20-21swapper/221:49:292
109202140,0sleep30-21swapper/321:59:393
23309993,5cyclictest1-21systemd23:07:271
12540290,0sleep10-21swapper/121:40:411
4275280,0sleep20-21swapper/221:35:582
28588280,0sleep00-21swapper/023:27:080
28453280,0sleep00-21swapper/000:05:290
23379983,3cyclictest275-21systemd-journal21:04:473
23349987,1cyclictest28-21ksoftirqd/200:00:002
23349983,3cyclictest275-21systemd-journal22:30:022
23349980,5cyclictest16912-21sleep21:24:592
23309984,2cyclictest275-21systemd-journal00:02:031
23309983,3cyclictest275-21systemd-journal21:03:071
23309982,3cyclictest30130-21munin-run22:50:001
23309980,5cyclictest25285-21awk21:30:001
23269985,2cyclictest12-21ksoftirqd/020:45:010
23269983,4cyclictest25266-21sshd22:26:530
23269983,4cyclictest25266-21sshd22:26:530
23379973,3cyclictest658-21snmpd21:13:103
23379973,3cyclictest658-21snmpd19:22:413
23379973,3cyclictest275-21systemd-journal20:05:003
23379973,3cyclictest17407-21lockfile-create00:00:013
23379973,2cyclictest275-21systemd-journal22:45:023
23379973,1cyclictest0-21swapper/321:22:233
23349974,2cyclictest12633-21cat22:00:142
23349972,4cyclictest0-21swapper/222:40:122
23349972,3cyclictest275-21systemd-journal23:08:582
23349970,5cyclictest24198-21diskmemload23:17:132
23269973,3cyclictest658-21snmpd23:30:190
23269973,3cyclictest658-21snmpd23:10:470
23269973,3cyclictest275-21systemd-journal22:52:010
23269973,3cyclictest12066-21apt-get19:30:110
23269973,2cyclictest275-21systemd-journal23:16:280
23269973,2cyclictest275-21systemd-journal22:01:140
23269973,1cyclictest0-21swapper/000:28:350
23269970,3cyclictest22200-21/usr/sbin/munin22:45:120
22330270,0sleep30-21swapper/321:05:123
17366270,0sleep20-21swapper/219:40:142
23379966,0cyclictest0-21swapper/323:12:413
23379966,0cyclictest0-21swapper/300:17:023
23379966,0cyclictest0-21swapper/300:05:513
23379965,1cyclictest34-21ksoftirqd/323:35:013
23379965,1cyclictest34-21ksoftirqd/319:20:003
23379963,2cyclictest8869-21ssh23:15:163
23379963,2cyclictest6882-21ssh00:31:423
23379963,2cyclictest658-21snmpd19:50:343
23379963,2cyclictest6066-21cat22:15:183
23379963,2cyclictest31580-21ssh22:30:243
23379963,2cyclictest28210-11brltty23:07:513
23379963,2cyclictest26475-21cat21:30:133
23379963,2cyclictest23469-21sh22:06:273
23379963,2cyclictest23107-21ssh00:02:453
23379963,2cyclictest22049-21ssh22:45:033
23379963,2cyclictest21645-21tr22:25:133
23379963,2cyclictest21645-21tr22:25:123
23379963,2cyclictest17808-21entropy21:25:123
23379963,2cyclictest15902-21ssh23:20:023
23379963,2cyclictest14029-21sshd21:41:493
23379963,2cyclictest13084-21taskset22:58:433
23379963,2cyclictest10821-21sshd20:39:573
23379963,1cyclictest0-21swapper/321:17:063
23379962,3cyclictest8199-21sed20:30:193
23379962,3cyclictest658-21snmpd23:48:453
23379962,3cyclictest658-21snmpd23:25:323
23379962,3cyclictest658-21snmpd22:50:323
23379962,3cyclictest658-21snmpd22:35:103
23379962,3cyclictest658-21snmpd22:21:213
23379962,3cyclictest658-21snmpd21:50:453
23379962,3cyclictest658-21snmpd20:50:183
23379962,3cyclictest658-21snmpd20:46:183
23379962,3cyclictest658-21snmpd20:20:543
23379962,3cyclictest504-21dbus-daemon20:55:113
23379962,3cyclictest275-21systemd-journal23:50:483
23379962,3cyclictest275-21systemd-journal00:35:303
23379962,3cyclictest275-21systemd-journal00:20:533
23379962,3cyclictest17001-21/usr/sbin/munin23:40:143
23379962,1cyclictest141rcu_preempt00:25:133
23379962,1cyclictest0-21swapper/322:14:023
23379962,1cyclictest0-21swapper/322:01:003
23379961,3cyclictest275-21systemd-journal19:26:433
23379960,6cyclictest0-21swapper/321:49:203
23379960,3cyclictest21474-21ssh23:03:423
23349965,1cyclictest13927-21ssh00:16:262
23349963,2cyclictest663-21runrttasks21:16:252
23349963,2cyclictest658-21snmpd21:53:292
23349963,2cyclictest4694-21ls21:55:172
23349963,2cyclictest4235-21sort00:30:152
23349963,2cyclictest31973-21ssh22:11:382
23349963,2cyclictest2827-21df00:10:112
23349963,2cyclictest275-21systemd-journal22:50:582
23349963,2cyclictest275-21systemd-journal20:38:302
23349963,2cyclictest275-21systemd-journal20:27:402
23349963,2cyclictest275-21systemd-journal00:39:152
23349963,2cyclictest26222-21missed_timers20:00:172
23349963,2cyclictest20759-21uniq22:05:132
23349963,2cyclictest15719-21df23:00:142
23349963,2cyclictest15296-21cut19:35:162
23349963,2cyclictest12732-21sshd23:37:062
23349963,2cyclictest11005-21rm21:40:142
23349963,1cyclictest0-21swapper/200:20:092
23349962,3cyclictest8771-21grep20:35:002
23349962,3cyclictest674-21lldpd23:53:282
23349962,3cyclictest658-21snmpd23:47:472
23349962,3cyclictest658-21snmpd23:27:232
23349962,3cyclictest658-21snmpd22:35:162
23349962,3cyclictest658-21snmpd22:28:132
23349962,3cyclictest658-21snmpd22:28:132
23349962,3cyclictest658-21snmpd21:25:072
23349962,3cyclictest658-21snmpd20:57:522
23349962,3cyclictest658-21snmpd20:22:572
23349962,3cyclictest658-21snmpd20:17:152
23349962,3cyclictest658-21snmpd20:13:242
23349962,3cyclictest658-21snmpd20:06:422
23349962,3cyclictest658-21snmpd19:55:492
23349962,3cyclictest658-21snmpd19:32:492
23349962,3cyclictest5241-21cat22:15:142
23349962,3cyclictest4570-21ssh23:12:502
23349962,3cyclictest275-21systemd-journal22:46:572
23349962,3cyclictest26341-21awk21:10:182
23349962,3cyclictest0-21swapper/200:25:032
23349960,6cyclictest0-21swapper/223:22:472
23349960,6cyclictest0-21swapper/221:33:472
23349960,6cyclictest0-21swapper/219:15:212
23349960,6cyclictest0-21swapper/200:01:372
23349960,5cyclictest275-21systemd-journal19:13:582
23349960,4cyclictest24198-21diskmemload23:43:282
23349960,4cyclictest24198-21diskmemload22:58:442
23309966,0cyclictest0-21swapper/123:45:131
23309966,0cyclictest0-21swapper/123:14:411
23309966,0cyclictest0-21swapper/121:11:071
23309964,1cyclictest18262-21apt-get21:45:021
23309963,3cyclictest18215-21kworker/1:123:51:541
23309963,3cyclictest18215-21kworker/1:100:07:031
23309963,2cyclictest491-21systemd-logind19:15:011
23309963,2cyclictest3142-21sh21:15:531
23309963,2cyclictest28974-21df22:10:151
23309963,2cyclictest275-21systemd-journal23:27:531
23309963,2cyclictest19133-21df_inode19:45:151
23309963,2cyclictest11617-21ssh23:36:141
23309963,2cyclictest10912-21ssh23:55:181
23309963,1cyclictest0-21swapper/100:36:431
23309962,4cyclictest18215-21kworker/1:120:40:271
23309962,3cyclictest658-21snmpd23:15:411
23309962,3cyclictest658-21snmpd22:55:051
23309962,3cyclictest658-21snmpd22:34:391
23309962,3cyclictest658-21snmpd22:27:491
23309962,3cyclictest658-21snmpd22:27:491
23309962,3cyclictest658-21snmpd22:20:071
23309962,3cyclictest658-21snmpd22:07:371
23309962,3cyclictest658-21snmpd20:24:021
23309962,3cyclictest658-21snmpd20:00:171
23309962,3cyclictest658-21snmpd19:36:431
23309962,3cyclictest658-21snmpd19:26:191
23309962,3cyclictest658-21snmpd00:21:211
23309962,3cyclictest4642-21basename00:30:171
23309962,3cyclictest3305-21memory00:10:151
23309962,3cyclictest28310-21cat20:05:151
23309962,3cyclictest2535-21cat21:35:141
23309962,3cyclictest25163-21run-parts20:00:011
23309962,3cyclictest16036-21cat23:00:171
23309962,3cyclictest1-21systemd20:30:091
23309962,3cyclictest10115-21ntpq21:20:141
23309962,2cyclictest275-21systemd-journal20:25:001
23309960,6cyclictest0-21swapper/123:21:111
23309960,6cyclictest0-21swapper/122:52:321
23309960,6cyclictest0-21swapper/122:43:311
23309960,6cyclictest0-21swapper/122:18:311
23309960,6cyclictest0-21swapper/120:55:161
23309960,6cyclictest0-21swapper/100:28:461
23309960,0cyclictest0-21swapper/121:56:581
23269966,0cyclictest0-21swapper/021:53:320
23269963,2cyclictest9736-21ssh22:37:090
23269963,2cyclictest6824-21ssh00:12:210
23269963,2cyclictest650-21lldpd20:22:200
23269963,2cyclictest504-21dbus-daemon23:35:170
23269963,2cyclictest501-21in:imuxsock20:31:250
23269963,2cyclictest28610-21sh21:31:110
23269963,2cyclictest28030-21ssh23:46:060
23269963,2cyclictest275-21systemd-journal19:55:540
23269963,2cyclictest25346-21hostname21:10:130
23269963,2cyclictest24051-21sshd22:06:540
23269963,2cyclictest18913-21wc20:55:170
23269963,2cyclictest16854-21sh22:21:510
23269963,2cyclictest10017-21which20:35:170
23269962,3cyclictest658-21snmpd22:31:390
23269962,3cyclictest658-21snmpd22:12:310
23269962,3cyclictest658-21snmpd21:55:030
23269962,3cyclictest658-21snmpd21:06:120
23269962,3cyclictest658-21snmpd21:02:480
23269962,3cyclictest658-21snmpd20:08:500
23269962,3cyclictest658-21snmpd20:02:450
23269962,3cyclictest658-21snmpd19:42:500
23269962,3cyclictest658-21snmpd19:35:170
23269962,3cyclictest658-21snmpd19:12:280
23269962,3cyclictest30935-21processes20:10:160
23269962,3cyclictest24348-21cat23:05:130
23269962,3cyclictest20970-21apt-get19:50:120
23269962,3cyclictest2052-21expr21:35:100
23269962,3cyclictest18480-21cat00:00:120
23269962,3cyclictest1459-11brltty20:54:470
23269962,3cyclictest0-21swapper/023:20:140
23269962,1cyclictest0-21swapper/023:51:320
23269962,1cyclictest0-21swapper/000:30:520
23269962,1cyclictest0-21swapper/000:21:170
23269961,4cyclictest14351-21cstates22:40:120
23269961,2cyclictest12675-21ssh22:58:250
23269960,6cyclictest0-21swapper/023:58:090
23269960,0cyclictest0-21swapper/023:41:100
23269960,0cyclictest0-21swapper/021:47:090
20533260,0sleep10-21swapper/123:41:421
23379955,0cyclictest0-21swapper/320:25:153
23379953,1cyclictest663-21runrttasks20:06:433
23379952,2cyclictest9715-21awk23:35:163
23379952,2cyclictest32423-21expr20:15:123
23379952,2cyclictest3211-21cat19:10:153
23379952,2cyclictest23547-21expr19:55:123
23379952,2cyclictest18849-21cat19:45:133
23379952,2cyclictest16716-21cat19:40:123
23379952,2cyclictest12027-21date19:30:013
23379951,3cyclictest658-21snmpd20:40:023
23379951,3cyclictest2817-21expr00:10:113
23379951,3cyclictest1890-21cat21:35:113
23379950,4cyclictest31716-21sshd20:13:573
23379950,1cyclictest0-21swapper/319:35:133
23349953,1cyclictest16061-21grep20:50:122
23349952,2cyclictest23781-21users21:05:202
23349952,2cyclictest19967-21/usr/sbin/munin19:45:202
23349952,2cyclictest13495-21cpuspeed_turbos20:45:122
23349952,2cyclictest11496-21df20:40:132
23349951,3cyclictest658-21snmpd19:20:042
23349951,3cyclictest21808-21cat19:50:152
23349951,3cyclictest1459-11brltty21:00:122
23349951,3cyclictest13611-21/usr/sbin/munin22:20:142
23349951,3cyclictest10170-21cat19:25:122
23349950,4cyclictest26349-21sh00:05:032
23309955,0cyclictest0-21swapper/119:20:061
23309953,1cyclictest16100-21gltestperf20:50:121
23309952,2cyclictest9311-21fschecks_count20:35:121
23309952,2cyclictest920-21cat20:15:171
23309952,2cyclictest658-21snmpd22:00:291
23309952,2cyclictest658-21snmpd21:50:051
23309952,2cyclictest658-21snmpd20:10:121
23309952,2cyclictest658-21snmpd00:15:031
23309952,2cyclictest25986-21expr21:30:121
23309952,2cyclictest23274-21awk21:05:161
23309952,2cyclictest16779-21cat19:40:111
23309952,2cyclictest12193-21cpuspeed_turbos19:30:111
23309951,3cyclictest4845-21basename19:15:011
23309951,3cyclictest13681-21expr20:45:131
23269952,2cyclictest7933-21expr19:20:090
23269952,2cyclictest658-21snmpd19:45:020
23269952,2cyclictest5389-21apt-get19:15:100
23269952,2cyclictest10074-21expr19:25:110
23269951,3cyclictest658-21snmpd20:15:050
23269951,3cyclictest499-21rm21:15:070
23269951,3cyclictest4212-21cpuspeed20:25:110
23269951,3cyclictest16095-21uname23:00:170
23269951,3cyclictest14073-21sed20:45:160
23269951,3cyclictest12191-21smartctl00:15:210
23269950,4cyclictest11652-21/usr/sbin/munin00:35:100
23269950,2cyclictest10133-21ntp_states21:20:160
22125250,0sleep10-21swapper/119:50:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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