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2026-05-18 - 12:13
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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 May 18, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277622315289,17sleep20-21swapper/219:07:552
275902276245,21sleep10-21swapper/119:05:531
276812273243,20sleep00-21swapper/019:06:520
275772265235,20sleep30-21swapper/319:05:463
111532970,0sleep00-21swapper/021:25:020
151122640,1sleep215111-21sort23:25:012
32632580,0sleep00-21swapper/000:15:200
143702570,0sleep00-21swapper/023:05:010
140682560,0sleep20-21swapper/221:45:312
118802550,0sleep10-21swapper/122:24:101
109552220,0sleep10-21swapper/121:44:301
87632200,0sleep20-21swapper/200:39:132
300982180,0sleep00-21swapper/021:16:130
282672180,0sleep30-21swapper/321:55:013
261782170,0sleep20-21swapper/222:13:062
2804299150,12cyclictest20054-21ssh00:25:342
2804299150,11cyclictest6554-21ssh23:00:142
2804299150,11cyclictest3369-21ssh22:57:592
2804299150,11cyclictest28454-21ssh21:55:052
111762150,0sleep20-21swapper/200:20:192
2804299141,10cyclictest2568-21expr00:15:162
2804299141,10cyclictest0-21swapper/223:10:052
2804299140,11cyclictest8801-21ssh21:42:482
2804299140,11cyclictest7338-21ssh22:20:372
2804299140,11cyclictest7236-21ssh22:01:082
2804299140,11cyclictest5841-21ssh22:40:102
2804299140,11cyclictest4066-21ssh22:38:592
2804299140,11cyclictest31016-21ssh00:13:132
2804299140,11cyclictest19211-21ssh00:05:292
2804299140,11cyclictest1429-21ssh21:38:312
2804299140,11cyclictest13745-21ssh00:02:392
2804299140,10cyclictest6900-21ssh23:39:242
2804299140,10cyclictest5186-21sh21:20:362
2804299140,10cyclictest4649-21ssh23:57:032
2804299140,10cyclictest19558-21ssh22:09:202
2804299140,10cyclictest16124-21ssh22:45:332
2804299140,10cyclictest15844-21ssh22:25:502
2804299131,9cyclictest17746-21if_err_enp4s019:55:152
2804299131,7cyclictest12253-21/usr/sbin/munin21:25:152
2804299130,9cyclictest18118-21diskmemload22:17:192
2804299130,9cyclictest18118-21diskmemload21:30:072
2804299130,10cyclictest4995-21users19:25:202
2804299130,10cyclictest30827-21rm23:53:382
2804299130,10cyclictest29228-21ssh21:15:332
2804299130,10cyclictest28242-21ssh00:30:332
2804299130,10cyclictest26177-21ssh23:30:392
2804299130,10cyclictest24284-21sh22:50:302
2804299130,10cyclictest24000-21ssh22:30:472
2804299130,10cyclictest22966-21ssh21:51:022
2804299130,10cyclictest20743-21ssh21:10:392
2804299130,10cyclictest20743-21ssh21:10:382
2804299130,10cyclictest1800-21ssh23:16:142
2804299130,10cyclictest16928-21ssh23:05:412
2804299130,10cyclictest12187-21missed_timers20:55:152
2804299120,9cyclictest3612-21grep20:35:192
2804299120,8cyclictest6075-21fschecks_count19:30:142
2804299120,8cyclictest31095-21basename20:25:152
2804299120,7cyclictest16555-21ssh23:45:052
2804299120,11cyclictest8266-21diskmemload23:40:012
2804299120,10cyclictest17740-21ssh23:25:312
2804299110,9cyclictest26601-21sed20:15:152
2804299110,7cyclictest2946-11brltty19:40:532
2804299110,7cyclictest20022-21uname20:00:152
2804299110,7cyclictest10149-21open_inodes20:50:172
2804299110,6cyclictest4839-21ls20:40:132
2804299110,6cyclictest15129-21sed21:00:212
2804299110,10cyclictest31007-21headstperf19:15:012
2804299110,10cyclictest21557-21apt-get20:05:132
2804299110,10cyclictest16107-21apt-get21:05:022
2804299110,10cyclictest14829-21apt-get19:50:022
2804299110,10cyclictest13957-21sshd19:45:552
212532110,3sleep334-21ksoftirqd/323:47:363
87112100,1sleep30-21swapper/300:39:103
2804299100,9cyclictest30210-21latency_hist19:15:012
2804299100,6cyclictest29364-21gzip20:20:202
2804299100,10cyclictest0-21swapper/219:35:122
280459992,6cyclictest0-21swapper/323:55:003
280429990,8cyclictest7753-21wc20:45:172
280429990,8cyclictest32687-21apt-get20:30:122
280429990,8cyclictest1611-21df19:20:152
280429990,7cyclictest0-21swapper/220:10:032
280389990,8cyclictest11298-21ssh23:02:431
4173270,0sleep00-21swapper/023:37:160
32619270,0sleep10-21swapper/123:15:191
280459974,2cyclictest658-21snmpd23:07:323
280459973,3cyclictest504-21dbus-daemon23:40:003
280459973,3cyclictest30141-21cron22:55:013
280459973,1cyclictest0-21swapper/322:18:463
280459972,3cyclictest275-21systemd-journal20:45:013
280389974,2cyclictest504-21dbus-daemon21:25:011
280389974,2cyclictest21866-21cron22:50:011
280389973,2cyclictest275-21systemd-journal20:10:091
280389973,2cyclictest275-21systemd-journal19:55:441
280389970,1cyclictest16147-21ssh23:25:131
280349974,2cyclictest501-21in:imuxsock22:17:240
280349974,2cyclictest12-21ksoftirqd/019:55:000
280349973,3cyclictest275-21systemd-journal22:39:050
280349973,3cyclictest275-21systemd-journal21:49:560
280349973,3cyclictest19338-21cat21:10:150
280349973,3cyclictest19338-21cat21:10:150
280349972,3cyclictest275-21systemd-journal19:11:370
6773260,1sleep00-21swapper/022:20:200
280459966,0cyclictest0-21swapper/322:38:453
280459966,0cyclictest0-21swapper/300:13:103
280459964,2cyclictest34-21ksoftirqd/300:00:003
280459964,1cyclictest18814-11brltty20:59:463
280459963,2cyclictest7931-21cat23:20:163
280459963,2cyclictest730-21taskset19:17:293
280459963,2cyclictest4034-21ssh00:15:543
280459963,2cyclictest32280-21grep22:55:203
280459963,2cyclictest32249-21ssh21:56:493
280459963,2cyclictest31892-21fw_packets23:15:153
280459963,2cyclictest2946-11brltty19:25:523
280459963,2cyclictest275-21systemd-journal19:55:293
280459963,2cyclictest24492-21tune2fs23:30:133
280459963,2cyclictest22016-21sh00:27:063
280459963,2cyclictest14316-21cut22:45:133
280459962,3cyclictest7455-21uname23:00:183
280459962,3cyclictest658-21snmpd23:25:173
280459962,3cyclictest658-21snmpd22:42:283
280459962,3cyclictest658-21snmpd22:10:123
280459962,3cyclictest658-21snmpd21:33:433
280459962,3cyclictest658-21snmpd21:23:073
280459962,3cyclictest658-21snmpd20:36:173
280459962,3cyclictest658-21snmpd20:15:413
280459962,3cyclictest658-21snmpd20:07:533
280459962,3cyclictest4776-21cat21:40:163
280459962,3cyclictest442-21cat20:30:133
280459962,3cyclictest28590-21expr19:10:133
280459962,3cyclictest28470-21cut21:35:143
280459962,3cyclictest275-21systemd-journal20:20:093
280459962,3cyclictest26996-21cat00:30:163
280459962,3cyclictest1-21systemd19:45:203
280459962,3cyclictest11600-21ls21:25:123
280459962,3cyclictest0-21swapper/323:55:203
280459962,3cyclictest0-21swapper/322:21:473
280459962,1cyclictest141rcu_preempt23:40:013
280459962,1cyclictest0-21swapper/322:01:033
280459962,1cyclictest0-21swapper/300:09:463
280459960,6cyclictest0-21swapper/321:46:333
280459960,4cyclictest2981-21systemd-udevd19:22:363
280459960,2cyclictest141rcu_preempt20:50:123
280389966,0cyclictest0-21swapper/123:40:001
280389966,0cyclictest0-21swapper/122:55:011
280389966,0cyclictest0-21swapper/122:11:291
280389966,0cyclictest0-21swapper/100:12:141
280389963,2cyclictest6786-21gunzip19:30:181
280389963,2cyclictest658-21snmpd00:31:341
280389963,2cyclictest4843-21sh00:36:101
280389963,2cyclictest28224-21/usr/sbin/munin19:10:141
280389963,2cyclictest275-21systemd-journal22:40:451
280389963,2cyclictest275-21systemd-journal22:28:561
280389963,2cyclictest27021-21tr20:15:191
280389963,2cyclictest23378-21awk22:50:171
280389963,2cyclictest23190-21ssh00:28:021
280389963,2cyclictest21753-21ssh00:07:271
280389963,2cyclictest12144-21uname21:25:141
280389963,2cyclictest12144-21apt-get21:45:131
280389963,2cyclictest11320-21grep19:40:191
280389963,1cyclictest0-21swapper/123:35:021
280389963,1cyclictest0-21swapper/121:17:101
280389962,3cyclictest8962-21cut20:50:011
280389962,3cyclictest658-21snmpd23:55:441
280389962,3cyclictest658-21snmpd23:24:051
280389962,3cyclictest658-21snmpd21:37:131
280389962,3cyclictest658-21snmpd21:00:121
280389962,3cyclictest658-21snmpd00:22:401
280389962,3cyclictest658-21snmpd00:15:151
280389962,3cyclictest504-21dbus-daemon22:36:351
280389962,3cyclictest32034-21seq20:25:281
280389962,3cyclictest275-21systemd-journal23:50:001
280389962,3cyclictest24169-21grep23:30:121
280389962,3cyclictest20348-21sed20:00:161
280389962,3cyclictest15508-21cat23:05:161
280389962,3cyclictest0-21swapper/123:10:201
280389962,1cyclictest1-21systemd20:40:001
280389962,1cyclictest0-21swapper/123:50:171
280389960,6cyclictest0-21swapper/121:30:271
280389960,0cyclictest0-21swapper/122:05:211
280349964,1cyclictest73372sleep020:45:150
280349964,1cyclictest22265-21grep22:30:150
280349963,2cyclictest9855-21idleruntime-cro19:40:000
280349963,2cyclictest658-21snmpd21:43:030
280349963,2cyclictest658-21snmpd20:31:440
280349963,2cyclictest5357-21grep22:00:160
280349963,2cyclictest491-21systemd-logind00:29:020
280349963,2cyclictest31837-21ssh21:36:570
280349963,2cyclictest304-21systemd-udevd23:26:250
280349963,2cyclictest26561-21ntpq00:10:170
280349963,2cyclictest17743-21cat19:55:150
280349963,2cyclictest12055-21cat20:55:140
280349963,2cyclictest10097-21taskset19:40:070
280349963,1cyclictest0-21swapper/023:48:040
280349963,1cyclictest0-21swapper/021:50:150
280349962,3cyclictest658-21snmpd23:32:560
280349962,3cyclictest658-21snmpd23:23:560
280349962,3cyclictest658-21snmpd22:51:420
280349962,3cyclictest658-21snmpd21:00:030
280349962,3cyclictest658-21snmpd20:09:530
280349962,3cyclictest658-21snmpd19:47:180
280349962,3cyclictest658-21snmpd19:34:190
280349962,3cyclictest4308-21expr19:25:160
280349962,3cyclictest31408-21ntpq20:25:170
280349962,3cyclictest30897-21expr22:55:120
280349962,3cyclictest275-21systemd-journal21:10:010
280349962,1cyclictest0-21swapper/022:26:250
280349962,1cyclictest0-21swapper/022:12:010
280349962,1cyclictest0-21swapper/022:08:000
280349962,1cyclictest0-21swapper/021:58:210
280349962,1cyclictest0-21swapper/000:39:290
280349960,6cyclictest0-21swapper/023:56:320
280349960,6cyclictest0-21swapper/023:11:400
280349960,6cyclictest0-21swapper/000:00:300
280349960,5cyclictest504-21dbus-daemon20:43:290
280349960,3cyclictest21365-21ssh21:30:200
16204260,0sleep30-21swapper/322:26:083
280459954,1cyclictest34-21ksoftirqd/319:40:013
280459953,1cyclictest23281-21cstates23:10:143
280459953,1cyclictest14180-21tail21:00:143
280459952,3cyclictest2132-21kworker/3:220:40:133
280459952,2cyclictest8015-21cut19:35:133
280459952,2cyclictest27105-21ssh21:15:083
280459952,2cyclictest25026-21sort20:10:193
280459952,2cyclictest23058-21cut22:30:203
280459952,2cyclictest18340-21ssh21:10:013
280459952,2cyclictest18340-21ssh21:10:013
280459952,2cyclictest16407-21expr21:05:143
280459951,3cyclictest20759-21grep20:00:203
280459951,2cyclictest275-21systemd-journal20:26:293
280459951,2cyclictest275-21systemd-journal00:20:053
280459950,4cyclictest0-21swapper/322:05:123
280459950,3cyclictest275-21systemd-journal19:51:143
280459950,3cyclictest275-21systemd-journal19:30:033
280389953,1cyclictest4266-21sh22:00:041
280389953,1cyclictest21675-21sh22:30:121
280389952,2cyclictest658-21snmpd22:15:031
280389952,2cyclictest658-21snmpd20:30:381
280389952,2cyclictest658-21snmpd19:15:191
280389952,2cyclictest658-21snmpd00:00:121
280389952,2cyclictest4122-21cat19:25:151
280389952,2cyclictest28486-21ssh21:55:071
280389952,2cyclictest28242-21cat20:20:141
280389952,2cyclictest16007-21mailstats19:50:191
280389952,2cyclictest1339-21sort19:20:141
280389952,2cyclictest12892-21awk20:55:181
280389952,2cyclictest12471-21cpuspeed_turbos19:45:141
280389952,2cyclictest10224-21proc_pri20:50:181
280389951,4cyclictest22-21ksoftirqd/120:08:551
280389951,3cyclictest7864-21seq19:35:111
280389951,3cyclictest658-21snmpd21:05:031
280389951,3cyclictest5068-21ls20:40:131
280389951,3cyclictest20505-21grep21:50:131
280389950,3cyclictest19373-21rm21:10:161
280389950,3cyclictest19373-21rm21:10:161
280349953,1cyclictest9377-21seq20:50:130
280349953,1cyclictest2396-21mailstats19:20:200
280349953,1cyclictest18118-21diskmemload23:40:130
280349952,2cyclictest658-21snmpd00:20:000
280349952,2cyclictest6266-21expr22:40:130
280349952,2cyclictest3273-21grep21:20:140
280349952,2cyclictest31163-21rm23:15:060
280349952,2cyclictest28232-21basename20:20:140
280349952,2cyclictest26299-21expr20:15:140
280349952,2cyclictest24413-21cat20:10:140
280349952,2cyclictest17842-21tune2fs00:05:140
280349952,2cyclictest13999-21chrt22:45:070
280349952,1cyclictest0-21swapper/023:50:080
280349952,1cyclictest0-21swapper/023:05:030
280349951,3cyclictest658-21snmpd20:35:020
280349951,3cyclictest26993-21/usr/sbin/munin00:30:160
280349951,3cyclictest19308-21/usr/sbin/munin20:00:140
280349950,4cyclictest31174-21cut19:15:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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