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2026-04-06 - 16:30
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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 Mon Apr 06, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
267352284257,17sleep20-21swapper/207:09:582
245252277214,21sleep00-21swapper/007:05:000
267262275216,48sleep30-21swapper/307:09:553
265172272246,17sleep10-21swapper/107:07:201
83412710,0sleep10-21swapper/112:20:201
40512670,0sleep20-21swapper/211:39:092
258282620,0sleep30-21swapper/312:31:033
288482590,0sleep20-21swapper/209:35:472
157912590,0sleep10-21swapper/111:45:281
29852580,0sleep10-21swapper/110:19:561
100992570,0sleep30-21swapper/311:42:263
116932550,0sleep10-21swapper/109:25:211
319082520,0sleep00-21swapper/010:36:440
253132350,0sleep20-21swapper/210:33:022
19512200,0sleep334-21ksoftirqd/309:40:003
116232190,0sleep30-21swapper/310:44:523
78662170,0sleep30-21swapper/310:22:183
49762170,0sleep00-21swapper/009:40:580
215322160,0sleep20-21swapper/211:10:142
148312150,0sleep30-21swapper/309:05:133
153532140,0sleep00-21swapper/011:25:290
8762120,0sleep00-21swapper/011:36:380
107542120,0sleep00-21swapper/009:25:150
321432100,0sleep30-21swapper/312:35:153
2683999108,2cyclictest34-21ksoftirqd/308:30:003
2683499109,1cyclictest28-21ksoftirqd/210:15:012
121942100,0sleep10-21swapper/111:44:041
268349998,1cyclictest28-21ksoftirqd/211:20:012
268269993,4cyclictest12-21ksoftirqd/010:55:160
18651290,0sleep10-21swapper/110:29:171
268399986,1cyclictest34-21ksoftirqd/308:00:003
268399985,2cyclictest34-21ksoftirqd/308:50:003
268349986,1cyclictest28358-21fw_packets10:15:152
268349984,3cyclictest275-21systemd-journal08:51:442
268349983,3cyclictest22109-21munin-run08:10:002
268349981,2cyclictest6361-21ssh12:00:122
268349980,2cyclictest23374-21ssh10:51:132
268309984,3cyclictest275-21systemd-journal11:15:011
268309980,2cyclictest275-21systemd-journal10:55:011
268269987,1cyclictest12-21ksoftirqd/010:50:010
268269983,1cyclictest12-21ksoftirqd/012:30:340
268269980,7cyclictest20530-21df08:05:130
268399974,2cyclictest275-21systemd-journal11:32:103
268399974,2cyclictest275-21systemd-journal09:31:583
268399974,2cyclictest22677-21cron12:30:003
268399973,2cyclictest6109-21ssh09:22:243
268399973,1cyclictest0-21swapper/311:17:463
268349976,1cyclictest28-21ksoftirqd/210:25:012
268349974,2cyclictest29850-21perf11:55:012
268349974,2cyclictest2731-21ntp_states09:20:162
268349972,3cyclictest3653-21munin-run10:40:012
268349971,1cyclictest141rcu_preempt12:35:122
268349970,5cyclictest141rcu_preempt09:10:122
268349970,1cyclictest658-21snmpd09:43:222
268349970,1cyclictest5469-21ssh11:40:032
268309973,3cyclictest658-21snmpd11:01:061
268309973,3cyclictest504-21dbus-daemon09:40:301
268269976,1cyclictest12-21ksoftirqd/007:35:010
268269972,3cyclictest658-21snmpd09:57:590
268269972,3cyclictest275-21systemd-journal12:15:000
268269970,3cyclictest141rcu_preempt09:50:180
17493270,0sleep20-21swapper/212:25:582
11740270,0sleep00-21swapper/010:44:570
5039260,0sleep10-21swapper/110:00:301
268399963,2cyclictest6130-21cron07:35:013
268399963,2cyclictest32628-21sshd11:55:483
268399963,2cyclictest30477-21expr07:15:143
268399963,2cyclictest26525-21sh10:33:593
268399963,2cyclictest25509-21sh11:51:383
268399963,2cyclictest25453-21head08:15:143
268399963,2cyclictest21658-21grep11:10:153
268399963,2cyclictest20115-21expr10:10:143
268399963,2cyclictest19596-21sh09:10:473
268399963,2cyclictest16351-21ssh12:05:233
268399963,2cyclictest13671-21sh10:25:253
268399963,1cyclictest0-21swapper/312:19:023
268399962,3cyclictest658-21snmpd12:21:563
268399962,3cyclictest658-21snmpd11:45:313
268399962,3cyclictest658-21snmpd09:45:083
268399962,3cyclictest658-21snmpd08:05:463
268399962,3cyclictest4307-21cat08:40:153
268399962,3cyclictest3086-21cat09:40:123
268399962,3cyclictest28205-21sendmail_mailst07:10:183
268399962,3cyclictest27877-21tail09:55:153
268399962,3cyclictest275-21systemd-journal11:04:283
268399962,3cyclictest13218-21cat10:45:193
268399962,2cyclictest658-21snmpd09:16:243
268399962,2cyclictest275-21systemd-journal07:25:063
268399962,1cyclictest0-21swapper/311:20:413
268399962,1cyclictest0-21swapper/310:05:023
268399962,1cyclictest0-21swapper/309:25:023
268399961,4cyclictest24166-21cat12:10:193
268399961,3cyclictest275-21systemd-journal10:00:073
268399960,6cyclictest0-21swapper/311:35:473
268399960,6cyclictest0-21swapper/309:53:043
268399960,2cyclictest275-21systemd-journal11:07:493
268349963,2cyclictest6899-21sh11:00:362
268349963,2cyclictest5487-21smart_sda10:40:192
268349963,2cyclictest5147-21ssh11:20:112
268349963,2cyclictest4282-21awk10:00:192
268349963,2cyclictest394-21ssh10:57:132
268349963,2cyclictest30296-21sh07:15:122
268349963,2cyclictest24450-21vmstat12:10:212
268349963,2cyclictest19874-21cron08:05:002
268349963,2cyclictest17800-21ssh11:07:452
268349963,2cyclictest17019-21ssh11:46:242
268349963,2cyclictest1519-21ssh12:16:192
268349963,2cyclictest11999-21smartctl10:05:152
268349963,2cyclictest10193-21systemctl07:40:192
268349963,1cyclictest0-21swapper/209:45:532
268349962,3cyclictest658-21snmpd10:25:472
268349962,3cyclictest658-21snmpd09:08:422
268349962,3cyclictest658-21snmpd09:00:022
268349962,3cyclictest658-21snmpd08:58:082
268349962,3cyclictest658-21snmpd08:43:232
268349962,3cyclictest658-21snmpd08:12:192
268349962,3cyclictest658-21snmpd07:32:482
268349962,3cyclictest27736-21cat07:10:152
268349962,3cyclictest23886-21cat12:30:142
268349962,3cyclictest21019-21chrt12:09:042
268349962,3cyclictest1-21systemd07:35:182
268349962,1cyclictest0-21swapper/210:47:592
268349962,1cyclictest0-21swapper/209:15:092
268349961,1cyclictest28-21ksoftirqd/209:50:112
268349960,6cyclictest0-21swapper/208:25:032
268349960,4cyclictest0-21swapper/211:30:592
268349960,1cyclictest141rcu_preempt12:20:122
268349960,1cyclictest141rcu_preempt09:30:112
268349960,0cyclictest141rcu_preempt11:25:122
268349960,0cyclictest141rcu_preempt09:55:132
268349960,0cyclictest0-21swapper/207:20:212
268309966,0cyclictest0-21swapper/109:20:561
268309965,1cyclictest31073-21kworker/1:009:58:501
268309965,1cyclictest22-21ksoftirqd/109:15:011
268309963,2cyclictest9853-21chrt08:52:381
268309963,2cyclictest658-21snmpd11:31:431
268309963,2cyclictest624-21ssh10:57:231
268309963,2cyclictest275-21systemd-journal10:21:001
268309963,2cyclictest24320-21sh08:15:001
268309963,2cyclictest15652-21sshd07:55:021
268309963,2cyclictest14230-21cat11:25:161
268309963,1cyclictest0-21swapper/111:20:091
268309963,1cyclictest0-21swapper/110:36:201
268309962,3cyclictest658-21snmpd12:00:411
268309962,3cyclictest658-21snmpd11:51:221
268309962,3cyclictest658-21snmpd08:21:231
268309962,3cyclictest658-21snmpd08:08:281
268309962,3cyclictest658-21snmpd07:46:401
268309962,3cyclictest658-21snmpd07:30:031
268309962,3cyclictest658-21snmpd07:29:001
268309962,3cyclictest658-21snmpd07:15:181
268309962,3cyclictest31180-21sensors_temp11:35:171
268309962,3cyclictest275-21systemd-journal08:30:001
268309962,3cyclictest25272-21seq08:15:131
268309962,3cyclictest18613-21cat08:00:151
268309962,3cyclictest14944-21expr12:05:131
268309962,3cyclictest13242-21expr11:05:131
268309962,3cyclictest11925-21expr10:05:151
268309962,3cyclictest10418-21cat08:55:131
268309962,1cyclictest0-21swapper/112:35:211
268309961,4cyclictest6274-21munin-run12:20:001
268309961,4cyclictest3351-21cron08:40:001
268309960,6cyclictest0-21swapper/109:46:411
268309960,6cyclictest0-21swapper/109:10:281
268309960,5cyclictest22691-21/usr/sbin/munin12:10:171
268309960,5cyclictest21220-21grep10:30:171
268309960,0cyclictest0-21swapper/112:33:101
268309960,0cyclictest0-21swapper/110:41:041
268269963,3cyclictest0-21swapper/012:15:120
268269963,2cyclictest753-21sshd08:30:260
268269963,2cyclictest6655-21packagekitd07:35:030
268269963,2cyclictest658-21snmpd07:45:100
268269963,2cyclictest6402-21head08:45:150
268269963,2cyclictest32131-21sshd07:20:060
268269963,2cyclictest275-21systemd-journal09:46:220
268269963,2cyclictest27077-21expr09:35:130
268269963,2cyclictest27053-21ssh11:52:500
268269963,2cyclictest26632-21cat09:15:150
268269963,2cyclictest25124-21ssh10:13:200
268269963,2cyclictest23554-21ssh11:30:290
268269963,2cyclictest18938-21sh12:27:040
268269963,2cyclictest18339-21ssh10:09:280
268269963,2cyclictest16363-21ssh12:05:240
268269963,2cyclictest12-21ksoftirqd/011:00:020
268269963,2cyclictest12131-21taskset08:58:200
268269963,2cyclictest11966-21ssh11:43:540
268269963,1cyclictest0-21swapper/011:12:130
268269962,3cyclictest658-21snmpd12:35:110
268269962,3cyclictest658-21snmpd10:15:160
268269962,3cyclictest658-21snmpd09:32:330
268269962,3cyclictest658-21snmpd08:38:020
268269962,3cyclictest658-21snmpd07:25:120
268269962,3cyclictest658-21snmpd07:12:420
268269962,3cyclictest5919-21cat11:20:140
268269962,3cyclictest275-21systemd-journal10:51:540
268269962,3cyclictest20813-21cat10:30:150
268269962,3cyclictest10853-21turbostat10:05:010
268269962,3cyclictest0-21swapper/011:05:230
268269962,2cyclictest275-21systemd-journal11:15:100
268269961,4cyclictest9451-21timerwakeupswit08:50:180
268269961,2cyclictest11059-21rm12:22:190
268269961,0cyclictest141rcu_preempt07:55:110
268269960,6cyclictest0-21swapper/012:00:160
268269960,6cyclictest0-21swapper/010:26:130
268269960,3cyclictest275-21systemd-journal07:15:030
268269960,2cyclictest141rcu_preempt11:46:230
268269960,1cyclictest141rcu_preempt11:55:130
14311260,0sleep30-21swapper/311:25:163
268399952,2cyclictest8326-21expr08:50:123
268399952,2cyclictest6087-21gdbus11:59:593
268399952,2cyclictest28554-21ssh10:55:053
268399952,2cyclictest28172-21cat10:15:143
268399952,2cyclictest28098-21ssh10:35:013
268399952,2cyclictest27811-21cat08:20:143
268399952,2cyclictest23011-21if_enp4s008:10:143
268399952,2cyclictest1573-21tr08:35:113
268399952,2cyclictest13764-21expr07:50:133
268399952,2cyclictest13231-21cat09:00:133
268399952,2cyclictest11251-21basename07:45:123
268399951,3cyclictest9013-21sshd07:40:073
268399951,3cyclictest658-21snmpd08:00:313
268399951,3cyclictest385-21awk07:20:153
268399951,3cyclictest32385-21sshd08:30:153
268399951,3cyclictest10634-21cat08:55:133
268399950,4cyclictest20492-21/usr/sbin/munin10:50:133
268399950,3cyclictest275-21systemd-journal07:35:063
268349953,1cyclictest30063-21sh11:55:012
268349952,2cyclictest658-21snmpd08:30:022
268349952,2cyclictest27730-21sshd08:20:142
268349952,2cyclictest275-21systemd-journal07:50:012
268349952,2cyclictest26055-21grep08:15:182
268349952,2cyclictest16265-21expr07:55:132
268349952,2cyclictest1445-21cpu08:35:112
268349950,4cyclictest10533-21grep09:25:152
268349950,3cyclictest275-21systemd-journal08:45:042
268349950,0cyclictest141rcu_preempt07:45:122
268309953,1cyclictest14923-21tr09:05:131
268309953,1cyclictest13592-21tr09:00:161
268309952,2cyclictest658-21snmpd11:55:131
268309952,2cyclictest658-21snmpd07:50:121
268309952,2cyclictest6468-21smartctl08:45:141
268309952,2cyclictest6184-21gpgv07:35:011
268309952,2cyclictest3742-21cat08:40:121
268309952,2cyclictest372-21cat07:20:141
268309952,2cyclictest275-21systemd-journal07:40:011
268309952,2cyclictest26453-21ssh09:35:101
268309952,2cyclictest20624-21awk09:50:211
268309952,2cyclictest12159-21ssh10:45:061
268309952,2cyclictest0-21swapper/110:10:121
268309952,1cyclictest0-21swapper/109:30:011
268309951,3cyclictest31838-21cat08:30:121
268309951,3cyclictest29196-21ssh11:15:051
268309951,3cyclictest0-21swapper/112:25:121
268309950,3cyclictest275-21systemd-journal07:11:361
268269952,2cyclictest9718-21cat07:40:150
268269952,2cyclictest658-21snmpd09:05:030
268269952,2cyclictest5240-21sshd08:40:310
268269952,2cyclictest3445-21ssh10:20:050
268269952,2cyclictest29464-21cat08:25:130
268269952,2cyclictest27205-21cat08:20:120
268269952,2cyclictest25643-21wc08:15:150
268269952,2cyclictest17973-21sed09:10:130
268269952,2cyclictest13950-21timerwakeupswit09:00:180
268269952,2cyclictest13653-21expr07:50:130
268269951,3cyclictest22594-21expr08:10:120
268269950,4cyclictest18248-21expr08:00:130
268269950,3cyclictest1635-21ssh09:20:110
268349940,3cyclictest1925-21taskset07:25:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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