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2026-08-11 - 07:54
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Tue Aug 11, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211682321292,18sleep20-21swapper/219:08:152
211962277248,19sleep00-21swapper/019:08:370
210352274240,22sleep30-21swapper/319:06:463
211872272243,19sleep10-21swapper/119:08:301
280792690,0sleep00-21swapper/020:35:010
68282560,0sleep00-21swapper/000:37:190
271072560,0sleep10-21swapper/121:18:341
126702550,0sleep00-21swapper/021:48:290
201512530,0sleep10-21swapper/100:25:461
201512530,0sleep10-21swapper/100:25:461
301542190,0sleep20-21swapper/200:32:002
238242190,0sleep10-21swapper/121:35:201
59882180,0sleep10-21swapper/122:41:481
59812170,0sleep30-21swapper/323:00:483
57782150,0sleep10-21swapper/100:17:381
232282150,0sleep30-21swapper/323:50:093
106092130,0sleep20-21swapper/223:23:012
26102110,0sleep00-21swapper/021:42:160
214199998,1cyclictest34-21ksoftirqd/300:20:013
214069994,3cyclictest275-21systemd-journal21:25:380
214199980,7cyclictest16320-21/usr/sbin/munin00:05:183
214159987,1cyclictest28-21ksoftirqd/200:00:002
214159985,2cyclictest28-21ksoftirqd/223:10:002
214159980,5cyclictest30222-21ls21:40:002
19167280,0sleep10-21swapper/122:30:191
214199975,1cyclictest34-21ksoftirqd/319:45:013
214199974,2cyclictest9760-21sshd19:52:443
214199974,2cyclictest34-21ksoftirqd/319:35:013
214199973,3cyclictest30258-21sendmail-msp21:40:003
214199973,1cyclictest0-21swapper/323:15:313
214199972,4cyclictest658-21snmpd21:59:023
214199970,1cyclictest13097-21ssh00:21:473
214159975,2cyclictest658-21snmpd22:41:452
214159975,1cyclictest30296-21run-parts20:40:002
214159975,1cyclictest30296-21run-parts20:40:002
214159973,3cyclictest504-21dbus-daemon21:55:002
214159973,3cyclictest275-21systemd-journal00:17:382
214159973,1cyclictest0-21swapper/223:52:252
214159970,3cyclictest25565-21cut00:10:142
214159970,1cyclictest20305-21sh23:29:002
214119973,2cyclictest275-21systemd-journal21:45:141
214119973,1cyclictest0-21swapper/100:02:281
214119971,3cyclictest275-21systemd-journal21:40:001
214119970,4cyclictest23035-21munin-run21:55:011
214069974,2cyclictest304-21systemd-udevd19:53:360
214069974,2cyclictest275-21systemd-journal19:23:460
214069974,2cyclictest27500-21sshd21:57:040
214069974,2cyclictest12-21ksoftirqd/000:35:010
214069973,3cyclictest8237-21expr22:05:130
214069973,3cyclictest658-21snmpd20:37:440
214069973,3cyclictest658-21snmpd20:37:440
214069973,3cyclictest504-21dbus-daemon23:50:180
214069973,3cyclictest304-21systemd-udevd22:00:360
214069973,3cyclictest304-21systemd-udevd21:20:350
214069973,3cyclictest304-21systemd-udevd21:14:340
214069973,3cyclictest304-21systemd-udevd20:44:350
214069973,3cyclictest275-21systemd-journal23:24:550
214069973,3cyclictest275-21systemd-journal22:35:010
214069973,3cyclictest275-21systemd-journal19:40:010
214069973,3cyclictest19499-21seq23:47:300
214069973,3cyclictest17388-21ntpq00:05:210
214069972,1cyclictest141rcu_preempt23:40:470
214069970,6cyclictest304-21systemd-udevd22:16:360
31174260,0sleep20-21swapper/221:40:132
214199964,1cyclictest1083-21grep20:45:153
214199963,2cyclictest859-21ssh21:40:573
214199963,2cyclictest7617-21sh22:24:153
214199963,2cyclictest7187-21sh23:20:243
214199963,2cyclictest663-21runrttasks19:17:493
214199963,2cyclictest658-21snmpd23:44:173
214199963,2cyclictest658-21snmpd00:01:113
214199963,2cyclictest5358-21ssh22:03:273
214199963,2cyclictest4729-21ssh22:40:503
214199963,2cyclictest31537-21ssh23:55:033
214199963,2cyclictest29173-11brltty23:32:533
214199963,2cyclictest275-21systemd-journal22:10:463
214199963,2cyclictest26176-21df20:30:123
214199963,2cyclictest23172-21ssh00:28:033
214199963,2cyclictest23172-21ssh00:28:033
214199963,2cyclictest13876-21ssh23:05:233
214199963,2cyclictest13643-21chrt21:30:013
214199962,3cyclictest7899-21expr21:00:123
214199962,3cyclictest658-21snmpd22:35:153
214199962,3cyclictest658-21snmpd22:31:183
214199962,3cyclictest658-21snmpd22:15:473
214199962,3cyclictest658-21snmpd22:05:373
214199962,3cyclictest658-21snmpd21:13:573
214199962,3cyclictest658-21snmpd20:03:133
214199962,3cyclictest658-21snmpd19:56:093
214199962,3cyclictest658-21snmpd19:12:363
214199962,3cyclictest6367-21smartctl19:45:143
214199962,3cyclictest504-21dbus-daemon22:57:513
214199962,3cyclictest3126-21sed19:40:013
214199962,3cyclictest30894-21df23:35:133
214199962,3cyclictest21537-21cat23:10:143
214199962,3cyclictest19330-21expr20:15:153
214199962,3cyclictest11869-21ntpq22:45:193
214199962,1cyclictest0-21swapper/323:46:233
214199962,1cyclictest0-21swapper/321:29:113
214199962,1cyclictest0-21swapper/300:30:113
214199961,3cyclictest275-21systemd-journal20:35:563
214199961,3cyclictest275-21systemd-journal20:35:563
214199961,2cyclictest11154-21ssh21:47:203
214199960,6cyclictest0-21swapper/323:25:373
214199960,0cyclictest0-21swapper/322:26:193
214199960,0cyclictest0-21swapper/321:20:313
214199960,0cyclictest0-21swapper/320:22:113
214199960,0cyclictest0-21swapper/300:36:573
214159966,0cyclictest0-21swapper/222:56:392
214159964,1cyclictest501-21in:imuxsock22:17:132
214159963,2cyclictest9775-21ssh00:39:312
214159963,2cyclictest8944-21ntpq22:05:182
214159963,2cyclictest3901-21sshd22:02:232
214159963,2cyclictest28756-21ssh21:19:512
214159963,2cyclictest27614-21tr19:20:182
214159963,2cyclictest23739-21sh00:09:382
214159963,2cyclictest17295-21sh21:12:322
214159963,2cyclictest1293-21rm23:17:222
214159963,2cyclictest0-21swapper/223:43:452
214159962,3cyclictest658-21snmpd22:32:542
214159962,3cyclictest658-21snmpd22:25:422
214159962,3cyclictest658-21snmpd22:20:062
214159962,3cyclictest658-21snmpd22:13:052
214159962,3cyclictest658-21snmpd20:30:262
214159962,3cyclictest658-21snmpd20:25:202
214159962,3cyclictest658-21snmpd19:53:582
214159962,3cyclictest658-21snmpd19:32:432
214159962,3cyclictest658-21snmpd00:25:532
214159962,3cyclictest658-21snmpd00:25:532
214159962,3cyclictest658-21snmpd00:00:232
214159962,3cyclictest6109-21expr19:45:132
214159962,3cyclictest6076-21cat20:55:142
214159962,3cyclictest22117-21find23:30:122
214159962,3cyclictest21862-21fw_packets20:20:142
214159962,3cyclictest15679-21cat23:45:172
214159962,3cyclictest1-21systemd20:13:202
214159962,3cyclictest0-21swapper/221:25:102
214159962,2cyclictest31839-1kworker/u9:223:00:172
214159962,1cyclictest0-21swapper/223:12:042
214159962,1cyclictest0-21swapper/200:20:202
214159961,3cyclictest18964-21sh21:32:512
214159961,2cyclictest30933-21cron19:30:012
214159960,6cyclictest0-21swapper/223:39:142
214159960,3cyclictest11851-21awk21:10:002
214159960,0cyclictest0-21swapper/221:22:342
214119964,1cyclictest4278-21sed23:00:141
214119963,2cyclictest9102-21ssh23:21:521
214119963,2cyclictest658-21snmpd23:35:341
214119963,2cyclictest658-21snmpd00:36:261
214119963,2cyclictest501-21in:imuxsock19:20:181
214119963,2cyclictest4399-21sh23:19:411
214119963,2cyclictest304-21systemd-udevd22:35:351
214119963,2cyclictest304-21systemd-udevd22:21:361
214119963,2cyclictest25727-21ssh23:31:451
214119963,2cyclictest19703-21head20:15:161
214119963,2cyclictest10425-21ssh23:41:581
214119962,3cyclictest9166-21gdbus22:25:021
214119962,3cyclictest658-21snmpd23:13:491
214119962,3cyclictest658-21snmpd23:07:011
214119962,3cyclictest658-21snmpd22:53:061
214119962,3cyclictest658-21snmpd21:55:141
214119962,3cyclictest658-21snmpd21:06:241
214119962,3cyclictest658-21snmpd19:50:131
214119962,3cyclictest658-21snmpd19:18:461
214119962,3cyclictest6012-21fw_packets21:25:111
214119962,3cyclictest2436-21sed19:35:181
214119962,3cyclictest18326-21grep20:10:201
214119962,3cyclictest17705-21smart_sda00:05:231
214119962,3cyclictest17161-21kworker/1:119:45:011
214119962,3cyclictest11883-21ntpq22:45:191
214119962,1cyclictest0-21swapper/123:57:221
214119962,1cyclictest0-21swapper/122:05:131
214119962,1cyclictest0-21swapper/121:13:541
214119960,6cyclictest0-21swapper/123:54:281
214119960,6cyclictest0-21swapper/100:31:081
214119960,0cyclictest0-21swapper/123:45:411
214119960,0cyclictest0-21swapper/123:25:151
214119960,0cyclictest0-21swapper/121:20:141
214069963,2cyclictest713-21cpu20:45:130
214069963,2cyclictest6271-21sh22:42:010
214069963,2cyclictest4365-21ssh22:21:460
214069963,2cyclictest4048-21sh23:00:130
214069963,2cyclictest3866-21cat19:40:160
214069963,2cyclictest3202-21expr20:50:130
214069963,2cyclictest304-21systemd-udevd21:00:350
214069963,2cyclictest304-21systemd-udevd20:05:360
214069963,2cyclictest30038-21cat23:15:170
214069963,2cyclictest27969-21expr22:55:130
214069963,2cyclictest25628-21grep00:10:150
214069963,2cyclictest25520-21chrt20:29:530
214069963,2cyclictest23875-21sh00:28:350
214069963,2cyclictest23875-21sh00:28:340
214069963,2cyclictest21785-21fschecks_count20:20:140
214069963,2cyclictest20243-21ntpq22:50:190
214069963,2cyclictest18817-21sh22:10:560
214069963,2cyclictest16020-21cat21:50:170
214069963,2cyclictest15180-21ssh22:28:220
214069963,2cyclictest14949-21sh23:06:130
214069963,2cyclictest12652-21cstates20:00:130
214069963,2cyclictest11485-21date19:55:190
214069963,2cyclictest10531-21ssh00:01:050
214069963,2cyclictest10299-21expr00:20:190
214069962,3cyclictest7489-21sshd19:47:050
214069962,3cyclictest658-21snmpd23:55:350
214069962,3cyclictest658-21snmpd23:11:400
214069962,3cyclictest658-21snmpd22:45:090
214069962,3cyclictest658-21snmpd21:36:420
214069962,3cyclictest658-21snmpd21:19:000
214069962,3cyclictest658-21snmpd20:55:120
214069962,3cyclictest658-21snmpd19:34:370
214069962,3cyclictest658-21snmpd19:25:100
214069962,3cyclictest658-21snmpd19:20:010
214069962,3cyclictest304-21systemd-udevd21:34:350
214069962,3cyclictest22036-21ssh23:30:080
214069962,1cyclictest0-21swapper/023:39:560
214069962,1cyclictest0-21swapper/023:25:270
214069960,0cyclictest0-21swapper/022:35:400
214199952,2cyclictest658-21snmpd20:05:133
214199952,2cyclictest5418-21apt20:55:113
214199952,2cyclictest27126-21diskstats19:20:153
214199952,2cyclictest24764-21packagekitd00:10:003
214199952,2cyclictest23562-21/usr/sbin/munin20:25:103
214199952,2cyclictest22697-21cat21:15:233
214199952,2cyclictest19744-21uniq22:50:163
214199952,2cyclictest14969-21sh21:50:053
214199952,2cyclictest10227-21expr21:05:143
214199951,3cyclictest18026-21cat20:10:193
214199951,1cyclictest5345-21kworker/3:019:25:113
214199950,3cyclictest30548-21libinput-device20:40:113
214199950,3cyclictest275-21systemd-journal20:50:103
214159954,0cyclictest0-21swapper/219:35:102
214159953,1cyclictest8580-21tr21:00:162
214159953,1cyclictest25013-21timerwakeupswit21:55:192
214159952,2cyclictest7658-21cut21:45:162
214159952,2cyclictest4119-21switchtime20:50:202
214159952,2cyclictest3622-21cat19:40:132
214159952,2cyclictest23843-21df19:15:012
214159952,2cyclictest14803-21tr20:05:142
214159952,2cyclictest10401-21wc19:55:132
214159952,2cyclictest0-21swapper/220:45:152
214159952,1cyclictest0-21swapper/222:50:022
214159951,3cyclictest658-21snmpd19:10:122
214159951,3cyclictest19088-21/usr/sbin/munin20:15:212
214159951,3cyclictest12636-21/usr/sbin/munin20:00:132
214159951,3cyclictest11320-21tune2fs22:45:162
214159950,4cyclictest30760-21tr20:40:132
214159950,4cyclictest26221-21/usr/sbin/munin22:35:122
214119953,1cyclictest31392-21cstates19:30:151
214119953,1cyclictest108492sleep100:20:231
214119953,1cyclictest0-21swapper/122:15:121
214119952,2cyclictest658-21snmpd22:56:001
214119952,2cyclictest658-21snmpd21:00:031
214119952,2cyclictest658-21snmpd20:40:081
214119952,2cyclictest658-21snmpd20:30:021
214119952,2cyclictest5618-21cat20:55:121
214119952,2cyclictest3648-21forks19:40:151
214119952,2cyclictest32646-21cat22:00:161
214119952,2cyclictest28139-21cat20:35:011
214119952,2cyclictest28139-21cat20:35:011
214119952,2cyclictest22297-21cat19:10:151
214119952,2cyclictest16166-21ssh22:10:061
214119952,2cyclictest13619-21sh21:29:591
214119952,2cyclictest1352-21cat20:45:161
214119952,2cyclictest10867-21cat19:55:151
214119952,2cyclictest0-21swapper/100:10:021
214119951,3cyclictest658-21snmpd20:21:521
214119951,3cyclictest658-21snmpd19:25:301
214119951,3cyclictest3858-21uname20:50:171
214119951,3cyclictest23681-21cat20:25:101
214119951,3cyclictest14855-21cat20:05:141
214119950,2cyclictest12761-21cstates20:00:131
214069953,1cyclictest658-21snmpd20:10:010
214069953,1cyclictest22692-21grep19:10:180
214069952,3cyclictest0-21swapper/000:15:150
214069952,2cyclictest19218-21cpuspeed_turbos20:15:140
214069951,3cyclictest1-21systemd21:05:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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