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2026-04-08 - 09:13
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Wed Apr 08, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246022314287,18sleep20-21swapper/219:06:262
246652301271,20sleep10-21swapper/119:07:131
247172271237,21sleep00-21swapper/019:07:530
245722262231,21sleep30-21swapper/319:06:033
225802640,0sleep00-21swapper/022:12:280
300992620,0sleep00-21swapper/022:36:310
158992610,0sleep00-21swapper/021:10:130
53172600,0sleep10-21swapper/122:41:041
64012580,0sleep00-21swapper/022:22:170
34102580,0sleep00-21swapper/023:20:030
208272570,0sleep20-21swapper/222:30:442
94822560,0sleep00-21swapper/019:45:130
94822560,0sleep00-21swapper/019:45:130
175282500,0sleep10-21swapper/123:47:431
29762150,0sleep30-21swapper/320:40:173
201382150,0sleep10-21swapper/121:31:561
182892140,0sleep00-21swapper/023:09:220
146982120,0sleep30-21swapper/322:46:593
158952100,0sleep30-21swapper/322:08:553
26542290,0sleep20-21swapper/223:14:242
249889998,1cyclictest22-21ksoftirqd/123:15:011
249869994,3cyclictest275-21systemd-journal20:20:370
249869994,3cyclictest275-21systemd-journal00:15:110
249889984,3cyclictest24615-21cron20:20:001
249889983,3cyclictest275-21systemd-journal20:40:001
249869981,1cyclictest0-21swapper/021:37:590
11303280,0sleep00-21swapper/021:00:120
8439270,1sleep18435-21munin-run20:55:001
249969975,1cyclictest27923-21cron23:35:003
249969974,2cyclictest569-21gdbus00:00:013
249969974,2cyclictest504-21dbus-daemon19:15:173
249969974,2cyclictest0-21swapper/319:15:013
249969973,3cyclictest275-21systemd-journal23:35:303
249969973,3cyclictest275-21systemd-journal23:35:303
249969973,3cyclictest275-21systemd-journal22:25:423
249969973,3cyclictest12425-21ntpq23:05:173
249969973,2cyclictest275-21systemd-journal00:40:003
249969973,1cyclictest0-21swapper/322:38:113
249929974,2cyclictest10660-21systemctl21:00:002
249929973,3cyclictest13598-21sshd22:46:072
249929972,3cyclictest20500-21dump-pmu-power23:50:012
249929971,2cyclictest275-21systemd-journal23:33:412
249929970,4cyclictest1749-21readlink20:40:002
249889976,1cyclictest742-21ntp_states21:20:161
249889973,3cyclictest658-21snmpd22:06:161
249889973,3cyclictest658-21snmpd20:11:061
249889972,4cyclictest0-21swapper/123:05:011
249889972,3cyclictest31624-21perf21:20:001
249869975,1cyclictest0-21swapper/020:40:150
249869973,3cyclictest658-21snmpd23:26:480
249869973,3cyclictest658-21snmpd19:24:310
249869973,3cyclictest27712-21diskstats22:55:130
249869973,3cyclictest275-21systemd-journal19:40:310
249869973,1cyclictest0-21swapper/023:04:150
23118270,0sleep00-21swapper/021:34:150
7283260,0sleep20-21swapper/221:44:192
3458260,0sleep10-21swapper/122:00:441
28301260,0sleep30-21swapper/321:17:243
28072260,1sleep20-21swapper/223:15:132
249969963,2cyclictest9194-21sh23:23:193
249969963,2cyclictest658-21snmpd23:15:363
249969963,2cyclictest658-21snmpd20:33:233
249969963,2cyclictest658-21snmpd20:06:033
249969963,2cyclictest658-21snmpd19:53:533
249969963,2cyclictest6536-21hwlatdetect00:20:123
249969963,2cyclictest427-21sh21:59:503
249969963,2cyclictest30800-21sshd22:56:423
249969963,2cyclictest2987-21sh22:00:223
249969963,2cyclictest2885-21ssh21:21:283
249969963,2cyclictest24266-21taskset20:15:393
249969963,2cyclictest20924-21apt-config23:50:013
249969963,2cyclictest19127-21/usr/sbin/munin22:50:123
249969963,2cyclictest16789-21rm00:06:253
249969963,2cyclictest16243-21expr20:00:143
249969963,2cyclictest10322-21sed19:45:183
249969963,2cyclictest10322-21sed19:45:183
249969963,1cyclictest0-21swapper/300:31:083
249969962,3cyclictest9017-21expr20:55:143
249969962,3cyclictest658-21snmpd23:42:303
249969962,3cyclictest658-21snmpd22:32:443
249969962,3cyclictest658-21snmpd22:19:253
249969962,3cyclictest658-21snmpd21:49:463
249969962,3cyclictest658-21snmpd20:45:523
249969962,3cyclictest658-21snmpd20:23:183
249969962,3cyclictest658-21snmpd00:25:203
249969962,3cyclictest658-21snmpd00:16:523
249969962,3cyclictest6447-21sshd19:35:313
249969962,3cyclictest560-21gdbus20:00:013
249969962,3cyclictest275-21systemd-journal22:40:033
249969962,3cyclictest21115-21cat20:10:153
249969962,3cyclictest13415-21basename23:45:143
249969962,3cyclictest12707-21ls23:25:173
249969962,3cyclictest1163-21cat21:40:143
249969962,3cyclictest0-21swapper/300:14:173
249969962,1cyclictest0-21swapper/321:32:083
249969962,1cyclictest0-21swapper/321:25:553
249969962,1cyclictest0-21swapper/321:12:303
249969960,5cyclictest30279-21/usr/sbin/munin19:20:163
249969960,3cyclictest5670-21cat00:00:133
249969960,2cyclictest27621-21cpuspeed_turbos20:25:133
249969960,0cyclictest0-21swapper/322:20:263
249929966,0cyclictest0-21swapper/222:10:452
249929966,0cyclictest0-21swapper/221:48:592
249929964,1cyclictest310-21sh23:56:302
249929963,2cyclictest9679-21sshd23:23:412
249929963,2cyclictest674-21lldpd23:38:452
249929963,2cyclictest674-21lldpd23:38:452
249929963,2cyclictest658-21snmpd23:52:462
249929963,2cyclictest658-21snmpd20:30:152
249929963,2cyclictest658-21snmpd00:26:472
249929963,2cyclictest504-21dbus-daemon23:00:192
249929963,2cyclictest504-21dbus-daemon22:16:132
249929963,2cyclictest504-21dbus-daemon20:25:542
249929963,2cyclictest275-21systemd-journal20:00:012
249929963,2cyclictest275-21systemd-journal19:35:022
249929963,2cyclictest26124-21ntpq19:10:172
249929963,2cyclictest24027-21ssh21:54:322
249929963,2cyclictest17992-21basename20:05:012
249929963,2cyclictest15381-21awk00:05:212
249929963,2cyclictest10907-21/usr/sbin/munin21:00:152
249929962,3cyclictest9696-21expr19:45:132
249929962,3cyclictest9696-21expr19:45:132
249929962,3cyclictest658-21snmpd22:35:532
249929962,3cyclictest658-21snmpd20:20:122
249929962,3cyclictest658-21snmpd20:17:482
249929962,3cyclictest658-21snmpd20:05:232
249929962,3cyclictest658-21snmpd19:29:022
249929962,3cyclictest658-21snmpd00:31:082
249929962,3cyclictest5177-21cups-browsed00:00:012
249929962,3cyclictest4894-21cat20:45:152
249929962,3cyclictest26065-21cat21:35:192
249929962,3cyclictest2258-21ls20:40:122
249929962,3cyclictest15330-21date21:10:002
249929962,2cyclictest275-21systemd-journal22:55:012
249929962,1cyclictest0-21swapper/222:27:022
249929962,1cyclictest0-21swapper/200:39:112
249929962,1cyclictest0-21swapper/200:15:292
249929960,6cyclictest0-21swapper/221:15:102
249929960,6cyclictest0-21swapper/221:11:552
249929960,6cyclictest0-21swapper/200:23:392
249929960,2cyclictest28029-21/usr/sbin/munin19:15:182
249889966,0cyclictest0-21swapper/123:59:021
249889966,0cyclictest0-21swapper/121:11:361
249889966,0cyclictest0-21swapper/120:40:421
249889963,2cyclictest8268-21ssh22:23:441
249889963,2cyclictest7300-21threads00:20:171
249889963,2cyclictest658-21snmpd23:53:401
249889963,2cyclictest658-21snmpd22:26:201
249889963,2cyclictest658-21snmpd19:17:401
249889963,2cyclictest658-21snmpd00:15:101
249889963,2cyclictest444-21ssh23:37:291
249889963,2cyclictest444-21ssh23:37:291
249889963,2cyclictest2680-21tr23:00:011
249889963,2cyclictest23115-21rm22:32:291
249889963,2cyclictest20131-21sh00:09:011
249889963,2cyclictest19571-21tune2fs22:50:131
249889963,2cyclictest18203-21ssh22:49:441
249889963,2cyclictest14080-21sh23:25:421
249889962,3cyclictest8631-21acpi21:45:111
249889962,3cyclictest6780-21tr00:00:181
249889962,3cyclictest658-21snmpd23:21:121
249889962,3cyclictest658-21snmpd20:28:031
249889962,3cyclictest658-21snmpd20:00:321
249889962,3cyclictest658-21snmpd19:59:561
249889962,3cyclictest658-21snmpd19:50:221
249889962,3cyclictest658-21snmpd19:32:411
249889962,3cyclictest23186-21grep00:10:171
249889961,3cyclictest275-21systemd-journal23:42:421
249889961,3cyclictest275-21systemd-journal22:35:011
249889960,6cyclictest0-21swapper/122:10:261
249889960,3cyclictest275-21systemd-journal00:31:181
249889960,0cyclictest0-21swapper/100:35:011
249889960,0cyclictest0-21swapper/100:28:171
249869966,0cyclictest0-21swapper/019:55:160
249869966,0cyclictest0-21swapper/000:38:400
249869964,1cyclictest12-21ksoftirqd/022:50:010
249869963,2cyclictest658-21snmpd22:31:350
249869963,2cyclictest504-21dbus-daemon23:56:210
249869963,2cyclictest501-21in:imuxsock23:15:040
249869963,2cyclictest31901-21ssh21:59:030
249869963,2cyclictest23342-21ssh23:50:370
249869963,2cyclictest21780-21sshd22:51:070
249869963,2cyclictest1971-21sshd21:20:460
249869963,1cyclictest0-21swapper/023:35:030
249869963,1cyclictest0-21swapper/023:35:030
249869962,3cyclictest9998-21fschecks_count22:05:140
249869962,3cyclictest8564-21hostname21:25:140
249869962,3cyclictest8415-21cron20:59:550
249869962,3cyclictest658-21snmpd23:41:000
249869962,3cyclictest658-21snmpd22:41:110
249869962,3cyclictest658-21snmpd22:02:190
249869962,3cyclictest658-21snmpd20:38:310
249869962,3cyclictest658-21snmpd20:25:360
249869962,3cyclictest658-21snmpd19:50:110
249869962,3cyclictest658-21snmpd19:36:160
249869962,3cyclictest658-21snmpd00:20:400
249869962,3cyclictest658-21snmpd00:11:460
249869962,3cyclictest658-21snmpd00:05:400
249869962,3cyclictest17531-21basename21:50:130
249869962,3cyclictest13610-21memory23:45:150
249869962,2cyclictest275-21systemd-journal22:16:130
249869962,2cyclictest275-21systemd-journal19:34:360
249869962,1cyclictest0-21swapper/022:27:280
249869960,6cyclictest0-21swapper/023:10:590
249869960,5cyclictest3283-21rm21:41:120
249869960,5cyclictest21355-21gzip23:30:170
249869960,2cyclictest6208-21perf20:49:590
249869960,0cyclictest0-21swapper/021:48:350
249869960,0cyclictest0-21swapper/021:18:300
249869960,0cyclictest0-21swapper/000:32:530
5212250,0sleep10-21swapper/119:35:131
249969955,0cyclictest0-21swapper/321:35:043
249969953,1cyclictest658-21snmpd19:30:113
249969952,2cyclictest7580-21gzip20:50:193
249969952,2cyclictest658-21snmpd22:10:043
249969952,2cyclictest32305-21expr20:35:123
249969952,2cyclictest19361-21ssh23:10:023
249969952,2cyclictest1872-21brltty19:27:323
249969952,2cyclictest12796-21taskset21:03:563
249969951,3cyclictest658-21snmpd23:00:023
249969951,3cyclictest658-21snmpd21:50:073
249969950,4cyclictest8113-21cut19:40:183
249969950,1cyclictest13127-21/usr/sbin/munin21:05:133
249929953,1cyclictest0-21swapper/222:20:152
249929953,1cyclictest0-21swapper/221:30:012
249929952,2cyclictest8055-21ntpq19:40:172
249929952,2cyclictest7996-21sed20:50:202
249929952,2cyclictest658-21snmpd21:55:132
249929952,2cyclictest658-21snmpd21:20:082
249929952,2cyclictest30418-21cpuspeed_turbos19:20:132
249929952,2cyclictest2611-21dpkg19:30:022
249929952,2cyclictest22609-21cat00:10:142
249929952,2cyclictest22228-21chrt20:12:562
249929952,2cyclictest19038-21ssh22:50:122
249929952,2cyclictest12205-21cat19:50:142
249929952,2cyclictest11637-21rm23:25:012
249929952,2cyclictest11389-21dpkg23:05:122
249929952,2cyclictest1041-21sh22:00:052
249929952,1cyclictest0-21swapper/222:40:092
249929951,3cyclictest8542-21sed21:25:132
249929951,3cyclictest658-21snmpd23:40:092
249929951,3cyclictest10081-21grep22:05:142
249889953,1cyclictest24510-21ssh21:35:091
249889952,2cyclictest8666-21cat20:55:131
249889952,2cyclictest658-21snmpd22:15:011
249889952,2cyclictest658-21snmpd20:30:061
249889952,2cyclictest658-21snmpd19:45:081
249889952,2cyclictest658-21snmpd19:45:081
249889952,2cyclictest658-21snmpd19:20:071
249889952,2cyclictest25926-21wc19:10:161
249889952,2cyclictest25557-21grep21:55:121
249889952,2cyclictest25500-21expr20:20:131
249889952,2cyclictest2160-21vmstat21:40:201
249889952,2cyclictest21453-21swap23:30:181
249889952,2cyclictest18195-21seq20:05:061
249889952,2cyclictest16725-21rm21:50:051
249889952,2cyclictest13743-21hddtemp_smartct21:05:141
249889952,1cyclictest0-21swapper/123:15:011
249889952,1cyclictest0-21swapper/123:05:041
249889951,3cyclictest8064-21ntp_states19:40:171
249889951,3cyclictest275-21systemd-journal21:00:441
249889950,4cyclictest5832-21sshd20:45:411
249889950,4cyclictest0-21swapper/119:25:151
249889950,1cyclictest7870-21/usr/sbin/munin21:25:181
249869953,2cyclictest12-21ksoftirqd/019:15:010
249869952,2cyclictest674-21lldpd21:06:410
249869952,2cyclictest658-21snmpd20:50:040
249869952,2cyclictest658-21snmpd20:10:060
249869952,2cyclictest658-21snmpd19:25:130
249869952,2cyclictest29911-21gdbus20:30:010
249869952,2cyclictest275-21systemd-journal00:00:010
249869952,2cyclictest22910-21cat20:15:130
249869952,2cyclictest18517-21expr20:05:120
249869952,2cyclictest14625-21ssh00:25:140
249869950,4cyclictest16961-21ntp_states20:00:180
249869950,1cyclictest25204-21apt-get19:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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