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2026-05-28 - 13:30
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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 Thu May 28, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127902315288,18sleep10-21swapper/119:05:101
145822290263,17sleep20-21swapper/219:07:562
146732272242,20sleep00-21swapper/019:09:030
127872269235,21sleep30-21swapper/319:05:093
50382670,0sleep20-21swapper/221:48:332
235452670,0sleep20-21swapper/222:38:382
152822630,0sleep00-21swapper/021:54:590
58932620,0sleep00-21swapper/022:27:510
318242600,0sleep20-21swapper/223:21:392
291742600,0sleep10-21swapper/122:41:331
324212560,0sleep30-21swapper/300:00:193
242302230,4sleep228-21ksoftirqd/222:58:122
30532190,2sleep228-21ksoftirqd/200:21:442
103852190,0sleep00-21swapper/021:32:040
249732180,0sleep20-21swapper/200:15:212
249732180,0sleep20-21swapper/200:15:212
135252180,0sleep10-21swapper/121:15:121
20732170,0sleep30-21swapper/321:27:063
174462160,0sleep017445-21ssh21:36:040
282422140,0sleep00-21swapper/020:50:000
33072130,0sleep10-21swapper/123:43:351
294862130,0sleep30-21swapper/322:22:253
19342110,0sleep00-21swapper/021:26:590
1487799119,1cyclictest28-21ksoftirqd/200:00:002
111122100,0sleep30-21swapper/321:13:333
148819980,7cyclictest23710-21sed21:40:133
148819980,1cyclictest141rcu_preempt23:00:013
148779983,3cyclictest275-21systemd-journal20:40:512
148739982,3cyclictest674-21lldpd23:02:521
148709982,4cyclictest674-21lldpd21:15:110
148709980,7cyclictest26020-21ssh23:18:360
19035270,0sleep30-21swapper/322:55:123
148819974,2cyclictest275-21systemd-journal00:17:503
148819974,2cyclictest275-21systemd-journal00:17:503
148819973,3cyclictest658-21snmpd20:14:183
148819973,3cyclictest504-21dbus-daemon20:40:193
148819973,3cyclictest275-21systemd-journal22:09:213
148819973,3cyclictest275-21systemd-journal21:45:243
148819973,2cyclictest30578-40gzip00:00:003
148779974,2cyclictest504-21dbus-daemon23:26:122
148779974,2cyclictest275-21systemd-journal23:40:522
148779973,3cyclictest275-21systemd-journal00:11:182
148779973,3cyclictest2450-21cat22:45:152
148739976,1cyclictest22-21ksoftirqd/121:30:001
148739976,1cyclictest0-21swapper/123:46:441
148739973,3cyclictest658-21snmpd23:57:251
148739973,3cyclictest658-21snmpd21:01:141
148739973,3cyclictest4246-21sshd00:22:391
148739972,3cyclictest32012-21ls22:05:011
148739972,3cyclictest275-21systemd-journal22:50:411
148739972,2cyclictest15333-21munin-run21:55:011
148709976,1cyclictest12-21ksoftirqd/022:50:000
148709974,2cyclictest22870-21memory21:20:140
148709973,3cyclictest25691-21date22:00:200
148709973,3cyclictest1981-21sshd23:04:210
148709973,2cyclictest275-21systemd-journal22:39:560
148709973,1cyclictest17068-21perf22:35:010
10481270,0sleep00-21swapper/000:26:030
148819966,0cyclictest0-21swapper/322:27:303
148819964,1cyclictest4212-21hddtemp_smartct19:55:143
148819963,2cyclictest658-21snmpd21:07:173
148819963,2cyclictest576-21ssh22:44:323
148819963,2cyclictest504-21dbus-daemon19:14:283
148819963,2cyclictest24814-21ssh22:39:383
148819963,2cyclictest20034-21missed_timers20:30:163
148819963,2cyclictest18837-21sshd21:56:203
148819963,2cyclictest12904-21ssh22:31:503
148819962,3cyclictest9937-21dpkg22:50:003
148819962,3cyclictest658-21snmpd23:32:253
148819962,3cyclictest658-21snmpd22:47:593
148819962,3cyclictest658-21snmpd22:02:163
148819962,3cyclictest658-21snmpd21:37:513
148819962,3cyclictest658-21snmpd21:32:483
148819962,3cyclictest658-21snmpd20:39:553
148819962,3cyclictest658-21snmpd20:00:033
148819962,3cyclictest658-21snmpd19:54:523
148819962,3cyclictest658-21snmpd19:48:333
148819962,3cyclictest658-21snmpd19:42:143
148819962,3cyclictest658-21snmpd00:35:203
148819962,3cyclictest3663-21cat23:05:123
148819962,3cyclictest275-21systemd-journal22:10:403
148819962,3cyclictest22075-21awk23:35:163
148819962,3cyclictest16359-21which00:10:173
148819962,3cyclictest13280-21grep23:10:193
148819962,1cyclictest0-21swapper/323:17:093
148819962,1cyclictest0-21swapper/321:16:443
148819961,2cyclictest275-21systemd-journal21:50:243
148819960,6cyclictest0-21swapper/323:44:213
148819960,6cyclictest0-21swapper/300:30:253
148819960,5cyclictest18103-21tr19:15:133
148819960,5cyclictest14482-21cat23:50:113
148819960,3cyclictest23550-21sshd21:20:183
148779966,0cyclictest0-21swapper/223:50:032
148779966,0cyclictest0-21swapper/221:57:572
148779964,1cyclictest28-21ksoftirqd/219:40:012
148779963,2cyclictest4117-21tune2fs19:55:132
148779963,2cyclictest275-21systemd-journal22:12:212
148779963,2cyclictest275-21systemd-journal20:15:012
148779963,2cyclictest25510-21rm23:18:142
148779963,2cyclictest21940-21sh21:39:302
148779963,2cyclictest21157-21ls20:35:022
148779963,2cyclictest16889-21ssh21:16:322
148779963,2cyclictest12574-21ssh21:52:552
148779963,1cyclictest0-21swapper/200:27:232
148779962,3cyclictest658-21snmpd23:08:062
148779962,3cyclictest658-21snmpd22:30:122
148779962,3cyclictest658-21snmpd21:40:502
148779962,3cyclictest658-21snmpd21:33:502
148779962,3cyclictest658-21snmpd21:21:182
148779962,3cyclictest658-21snmpd21:12:232
148779962,3cyclictest658-21snmpd20:36:252
148779962,3cyclictest658-21snmpd19:47:232
148779962,3cyclictest658-21snmpd19:40:242
148779962,3cyclictest658-21snmpd19:27:112
148779962,3cyclictest658-21snmpd19:10:102
148779962,3cyclictest658-21snmpd00:30:232
148779962,3cyclictest658-21snmpd00:02:252
148779962,3cyclictest275-21systemd-journal22:40:302
148779962,3cyclictest275-21systemd-journal20:55:122
148779962,3cyclictest275-21systemd-journal19:20:002
148779962,3cyclictest20934-21cat19:20:152
148779962,2cyclictest4633-21awk21:10:002
148779962,1cyclictest0-21swapper/223:39:152
148779962,1cyclictest0-21swapper/222:00:152
148779961,4cyclictest1425-21cron20:25:012
148779960,6cyclictest0-21swapper/223:13:582
148779960,6cyclictest0-21swapper/222:25:162
148779960,6cyclictest0-21swapper/200:07:432
148739966,0cyclictest0-21swapper/123:19:541
148739966,0cyclictest0-21swapper/121:30:331
148739963,2cyclictest658-21snmpd21:40:351
148739963,2cyclictest501-21in:imuxsock00:28:201
148739963,2cyclictest3807-21ssh22:06:531
148739963,2cyclictest25274-21sh23:37:011
148739963,2cyclictest22379-21ssh00:14:301
148739963,2cyclictest19917-21sendmail19:20:001
148739963,2cyclictest17136-21sh23:51:111
148739963,2cyclictest14454-21cron20:20:011
148739963,2cyclictest14454-21cron20:20:011
148739963,1cyclictest0-21swapper/123:05:481
148739962,3cyclictest9236-11brltty22:15:411
148739962,3cyclictest9155-21cat22:30:101
148739962,3cyclictest658-21snmpd23:25:481
148739962,3cyclictest658-21snmpd22:28:141
148739962,3cyclictest658-21snmpd21:35:471
148739962,3cyclictest658-21snmpd20:55:161
148739962,3cyclictest658-21snmpd20:47:071
148739962,3cyclictest658-21snmpd20:41:131
148739962,3cyclictest658-21snmpd20:28:041
148739962,3cyclictest658-21snmpd19:58:421
148739962,3cyclictest658-21snmpd19:35:471
148739962,3cyclictest658-21snmpd19:22:471
148739962,3cyclictest5864-21cat21:10:141
148739962,3cyclictest28645-21expr20:50:121
148739962,3cyclictest275-21systemd-journal20:40:011
148739962,3cyclictest25936-21sshd00:35:191
148739962,3cyclictest24012-21cron00:35:001
148739962,3cyclictest18882-21expr22:55:121
148739962,3cyclictest15789-21sed20:20:181
148739962,3cyclictest15784-21basename21:55:111
148739961,2cyclictest29444-21pmu-power23:20:151
148739961,1cyclictest25384-21awk22:40:011
148739960,5cyclictest501-21in:imuxsock21:25:001
148739960,2cyclictest26176-21pmu-power22:20:181
148739960,0cyclictest8312-21ssh22:10:101
148709964,1cyclictest4639-21diskmemload00:30:120
148709963,2cyclictest9492-21cron22:50:020
148709963,2cyclictest894-21ssh21:45:220
148709963,2cyclictest658-21snmpd22:58:120
148709963,2cyclictest32029-21sh23:21:480
148709963,2cyclictest29842-21grep23:40:120
148709963,2cyclictest275-21systemd-journal21:05:010
148709963,2cyclictest275-21systemd-journal20:44:110
148709963,2cyclictest2432-21head19:50:160
148709963,2cyclictest17183-21ssh00:10:310
148709963,2cyclictest16023-21ssh22:14:510
148709963,2cyclictest1374-11brltty00:35:550
148709962,3cyclictest658-21snmpd23:58:320
148709962,3cyclictest658-21snmpd23:38:210
148709962,3cyclictest658-21snmpd21:43:240
148709962,3cyclictest658-21snmpd20:55:580
148709962,3cyclictest658-21snmpd20:25:070
148709962,3cyclictest658-21snmpd20:15:160
148709962,3cyclictest658-21snmpd20:15:160
148709962,3cyclictest658-21snmpd20:10:010
148709962,3cyclictest658-21snmpd19:30:380
148709962,3cyclictest658-21snmpd19:24:420
148709962,3cyclictest32370-21cat19:45:150
148709962,3cyclictest275-21systemd-journal22:23:100
148709962,3cyclictest275-21systemd-journal00:20:280
148709962,3cyclictest17601-21cat22:15:160
148709962,3cyclictest17076-21grep21:55:190
148709962,3cyclictest15444-21cat20:20:140
148709962,3cyclictest0-21swapper/023:50:440
148709961,4cyclictest11646-21ssh23:10:110
148709961,2cyclictest31346-21turbostat19:45:010
148709960,6cyclictest0-21swapper/000:15:150
148709960,6cyclictest0-21swapper/000:15:150
148709960,6cyclictest0-21swapper/000:09:000
148709960,3cyclictest30470-40logrotate00:00:010
148709960,0cyclictest0-21swapper/023:07:400
148709960,0cyclictest0-21swapper/020:35:150
148819955,0cyclictest0-21swapper/320:55:133
148819953,1cyclictest29577-21tr20:50:193
148819953,1cyclictest0-21swapper/300:05:113
148819952,2cyclictest8727-21if_enp4s020:05:143
148819952,2cyclictest8511-21/usr/sbin/munin00:25:153
148819952,2cyclictest658-21snmpd20:20:123
148819952,2cyclictest658-21snmpd19:30:023
148819952,2cyclictest658-21snmpd19:20:143
148819952,2cyclictest4492-21cat23:25:113
148819952,2cyclictest28125-21ssh23:20:033
148819952,2cyclictest27514-21expr19:35:133
148819952,2cyclictest22718-21expr19:25:123
148819952,2cyclictest1835-21ssh00:20:493
148819951,3cyclictest821-21/usr/sbin/munin21:00:133
148819951,3cyclictest658-21snmpd22:15:043
148819951,3cyclictest16986-21/usr/sbin/munin20:25:093
148819951,3cyclictest13027-21tr20:15:133
148819951,3cyclictest13027-21tr20:15:133
148819950,4cyclictest6766-21cat23:45:153
148819950,3cyclictest275-21systemd-journal20:45:113
148779953,2cyclictest9825-21apt-config22:50:002
148779953,1cyclictest4639-21diskmemload23:45:132
148779953,1cyclictest13057-21head20:15:132
148779953,1cyclictest13057-21head20:15:132
148779952,2cyclictest8486-21awk20:05:132
148779952,2cyclictest658-21snmpd22:20:022
148779952,2cyclictest27415-21dpkg23:00:112
148779952,2cyclictest24487-21basename00:35:112
148779952,2cyclictest17274-21head22:15:142
148779952,2cyclictest17249-21expr20:25:102
148779952,2cyclictest1165-21kernelversion21:00:152
148779952,2cyclictest1057-21cut22:05:172
148779951,3cyclictest29707-21awk20:50:192
148779951,3cyclictest275-21systemd-journal19:30:212
148779951,3cyclictest2353-21ntp_states19:50:152
148779951,3cyclictest12790-21seq23:30:052
148779951,3cyclictest0-21swapper/221:25:062
148779950,3cyclictest7762-21systemd-udevd20:04:352
148779950,3cyclictest275-21systemd-journal20:45:102
148739955,0cyclictest0-21swapper/123:10:111
148739952,2cyclictest8240-21readlink00:05:201
148739952,2cyclictest8084-21apt20:05:111
148739952,2cyclictest658-21snmpd20:10:031
148739952,2cyclictest6471-21cat20:00:141
148739952,2cyclictest31738-21cstates21:45:141
148739952,2cyclictest3061-21forks21:05:121
148739952,2cyclictest30039-21cat19:40:141
148739952,2cyclictest23706-21cut00:15:121
148739952,2cyclictest23706-21cut00:15:121
148739952,2cyclictest19379-21cpuspeed_turbos20:30:121
148739952,2cyclictest1687-21rm22:45:101
148739952,2cyclictest13473-21ssh23:30:131
148739951,3cyclictest658-21snmpd19:50:121
148739951,3cyclictest30722-21cups-browsed00:00:001
148739951,3cyclictest22980-21hddtemp_smartct19:25:141
148739951,3cyclictest15413-21expr19:10:121
148739950,1cyclictest24592-21/usr/sbin/munin19:30:161
148709953,1cyclictest4285-21apt-get23:25:110
148709953,1cyclictest12872-21sh23:30:080
148709952,2cyclictest658-21snmpd22:05:070
148709952,2cyclictest658-21snmpd20:00:210
148709952,2cyclictest658-21snmpd19:55:180
148709952,2cyclictest658-21snmpd19:25:050
148709952,2cyclictest658-21snmpd19:15:090
148709952,2cyclictest29079-21cat20:50:140
148709952,2cyclictest27522-21df_inode19:35:130
148709952,2cyclictest14604-11brltty19:11:080
148709952,1cyclictest0-21swapper/023:45:100
148709952,1cyclictest0-21swapper/021:10:150
148709951,3cyclictest10705-21/usr/sbin/munin20:10:140
148709951,3cyclictest0-21swapper/022:40:070
148709950,3cyclictest275-21systemd-journal21:05:330
148739940,3cyclictest31578-21/usr/sbin/munin19:45:111
148709940,3cyclictest19181-21taskset20:30:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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