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2026-04-16 - 15:05
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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 all highest latencies:
System rackaslot8.osadl.org (updated Thu Apr 16, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139892327296,20sleep10-21swapper/107:05:341
141992298267,20sleep20-21swapper/207:08:162
140512269238,21sleep00-21swapper/007:06:220
142882255223,21sleep30-21swapper/307:09:263
202722640,0sleep10-21swapper/110:18:421
193942590,0sleep00-21swapper/011:55:440
95892580,0sleep20-21swapper/211:30:192
25662560,0sleep30-21swapper/309:48:013
75272550,0sleep20-21swapper/208:05:142
280212540,1sleep122-21ksoftirqd/110:03:421
260822530,0sleep00-21swapper/008:45:150
30972520,0sleep20-21swapper/210:27:442
147802510,0sleep30-21swapper/310:54:563
28362400,0sleep30-21swapper/311:45:413
127922210,0sleep10-21swapper/112:11:101
75172200,0sleep10-21swapper/110:30:161
300902200,1sleep30-21swapper/310:05:073
229572190,0sleep00-21swapper/011:19:400
234342180,0sleep20-21swapper/211:39:322
157362180,0sleep00-21swapper/009:16:180
68352170,0sleep10-21swapper/109:30:251
312692170,1sleep1211rcuc/109:45:191
320532160,0sleep10-21swapper/109:00:091
281722160,0sleep20-21swapper/209:24:372
70992140,0sleep122-21ksoftirqd/112:08:231
64502130,0sleep20-21swapper/211:09:332
229332120,0sleep122934-21latency_hist10:40:011
19245290,0sleep30-21swapper/310:37:193
144609998,1cyclictest34-21ksoftirqd/311:40:023
144489993,3cyclictest18333-21munin-run12:35:000
144609987,1cyclictest34-21ksoftirqd/310:50:013
144609987,1cyclictest34-21ksoftirqd/309:35:003
144609985,2cyclictest8160-21cut11:10:153
144609985,2cyclictest34-21ksoftirqd/311:55:003
144569985,2cyclictest26919-21fschecks_time07:35:152
144569982,5cyclictest0-21swapper/211:00:132
144539986,2cyclictest22-21ksoftirqd/111:55:001
144489986,2cyclictest658-21snmpd09:21:570
10621280,0sleep10-21swapper/109:52:561
7441270,0sleep20-21swapper/211:29:512
3209270,0sleep10-21swapper/111:45:591
29520270,0sleep00-21swapper/011:23:080
21411270,0sleep10-21swapper/109:40:021
144609976,1cyclictest18888-21chrt09:57:583
144609975,1cyclictest14520-21basename10:35:013
144609974,2cyclictest18985-21df08:30:133
144609973,3cyclictest28949-21cat07:40:113
144609973,3cyclictest275-21systemd-journal08:00:543
144609973,3cyclictest25947-21ntpq11:40:183
144609973,2cyclictest275-21systemd-journal10:00:263
144609972,3cyclictest275-21systemd-journal09:10:043
144609972,3cyclictest275-21systemd-journal08:39:453
144609972,1cyclictest331rcuc/312:35:233
144569973,3cyclictest658-21snmpd11:59:382
144569973,3cyclictest504-21dbus-daemon09:20:002
144569973,3cyclictest275-21systemd-journal10:06:212
144569973,3cyclictest1-21systemd07:25:012
144569972,1cyclictest0-21swapper/210:55:132
144539975,2cyclictest22-21ksoftirqd/108:00:001
144539974,2cyclictest11197-21sshd11:31:221
144539973,3cyclictest658-21snmpd08:08:251
144539973,3cyclictest275-21systemd-journal08:25:001
144539972,1cyclictest237502diskmemload09:21:091
144539972,1cyclictest0-21swapper/110:53:241
144539970,6cyclictest5219-21/usr/sbin/munin08:00:141
144489974,2cyclictest504-21dbus-daemon10:45:450
144489973,3cyclictest658-21snmpd12:23:260
144489973,3cyclictest504-21dbus-daemon07:40:010
144489973,3cyclictest275-21systemd-journal10:26:220
144489972,3cyclictest30954-21munin-run10:45:010
144489972,3cyclictest30733-21ls07:45:010
144489972,3cyclictest275-21systemd-journal10:20:010
144489970,2cyclictest4583-21sshd09:10:110
10709270,1sleep00-21swapper/010:51:460
10375270,0sleep30-21swapper/312:10:123
3116260,0sleep20-21swapper/212:25:122
24032260,0sleep20-21swapper/210:00:342
144609966,0cyclictest0-21swapper/309:15:383
144609963,2cyclictest674-21lldpd09:53:373
144609963,2cyclictest658-21snmpd07:25:353
144609963,2cyclictest3627-21seq09:29:193
144609963,2cyclictest3627-21seq09:29:193
144609963,2cyclictest32490-21gltestperf09:00:113
144609963,2cyclictest32327-21ssh11:25:113
144609963,2cyclictest32326-21head11:05:153
144609963,2cyclictest31002-21cat08:55:183
144609963,2cyclictest2803-21grep09:05:183
144609963,2cyclictest27839-21cat07:35:213
144609963,2cyclictest27659-21sh11:21:403
144609963,2cyclictest275-21systemd-journal12:20:173
144609963,2cyclictest25534-21cat07:30:193
144609963,2cyclictest25304-21apt-get08:45:113
144609963,2cyclictest25025-21date12:00:003
144609963,2cyclictest23205-21uname10:20:143
144609963,2cyclictest17749-21sh11:15:353
144609963,2cyclictest15826-21chrt08:21:333
144609963,2cyclictest14104-21sh10:15:073
144609963,2cyclictest1-21systemd07:15:013
144609963,2cyclictest11299-21basename12:30:153
144609963,2cyclictest10976-21rm11:31:123
144609962,3cyclictest658-21snmpd10:56:093
144609962,3cyclictest658-21snmpd10:41:223
144609962,3cyclictest658-21snmpd09:20:133
144609962,3cyclictest6214-21cat10:10:133
144609962,3cyclictest31622-21cat07:45:143
144609962,3cyclictest31216-21seq12:03:163
144609962,3cyclictest23724-21grep11:00:143
144609962,3cyclictest22709-21ntp_states09:40:173
144609962,3cyclictest13111-21sensors08:15:183
144609962,1cyclictest0-21swapper/312:29:463
144609962,1cyclictest0-21swapper/310:25:163
144609961,3cyclictest3716-21sshd12:05:423
144609960,6cyclictest0-21swapper/308:25:133
144609960,0cyclictest0-21swapper/308:51:123
144569964,1cyclictest3747-21munin-run09:10:012
144569963,2cyclictest658-21snmpd09:46:582
144569963,2cyclictest658-21snmpd08:24:402
144569963,2cyclictest504-21dbus-daemon12:21:232
144569963,2cyclictest504-21dbus-daemon08:54:452
144569963,2cyclictest275-21systemd-journal09:04:562
144569963,2cyclictest275-21systemd-journal07:46:432
144569963,2cyclictest26496-21ssh10:41:322
144569963,2cyclictest2375-21sh10:46:362
144569963,2cyclictest21596-21sshd09:40:102
144569963,2cyclictest2094-21cat07:50:192
144569963,2cyclictest16271-21sh09:55:552
144569963,2cyclictest15924-21ls11:15:142
144569963,2cyclictest11280-21sensors_temp12:10:172
144569963,1cyclictest0-21swapper/211:20:122
144569962,3cyclictest7120-21pluginstate10:10:182
144569962,3cyclictest658-21snmpd12:05:532
144569962,3cyclictest658-21snmpd10:51:092
144569962,3cyclictest658-21snmpd10:33:572
144569962,3cyclictest658-21snmpd09:50:552
144569962,3cyclictest658-21snmpd08:49:322
144569962,3cyclictest5901-21cat08:00:152
144569962,3cyclictest1-21systemd08:00:002
144569962,3cyclictest10186-21which11:50:182
144569962,3cyclictest0-21swapper/209:35:122
144569961,3cyclictest275-21systemd-journal11:42:322
144569961,2cyclictest14243-21rm10:15:122
144569960,6cyclictest0-21swapper/212:37:322
144569960,3cyclictest27909-21sshd12:00:412
144569960,3cyclictest12278-21munin-run09:15:002
144539966,0cyclictest0-21swapper/111:02:311
144539965,1cyclictest22-21ksoftirqd/112:05:001
144539965,1cyclictest22-21ksoftirqd/110:15:001
144539963,3cyclictest15647-21sh09:55:261
144539963,2cyclictest7556-21apt-get11:10:131
144539963,2cyclictest3900-21ssh11:27:041
144539963,2cyclictest31414-21ssh10:45:121
144539963,2cyclictest275-21systemd-journal10:42:221
144539963,2cyclictest13188-21kagekitd09:35:011
144539963,1cyclictest0-21swapper/112:15:141
144539962,3cyclictest658-21snmpd12:25:091
144539962,3cyclictest658-21snmpd11:43:341
144539962,3cyclictest658-21snmpd11:20:101
144539962,3cyclictest658-21snmpd10:29:591
144539962,3cyclictest658-21snmpd08:46:291
144539962,3cyclictest658-21snmpd08:40:591
144539962,3cyclictest658-21snmpd08:15:011
144539962,3cyclictest658-21snmpd08:14:491
144539962,3cyclictest658-21snmpd07:42:041
144539962,3cyclictest275-21systemd-journal07:20:011
144539962,3cyclictest15306-21basename07:10:141
144539962,1cyclictest141rcu_preempt08:39:581
144539962,1cyclictest0-21swapper/109:11:431
144539960,5cyclictest17010-21/usr/sbin/munin10:55:211
144539960,4cyclictest275-21systemd-journal08:35:001
144539960,2cyclictest30959-21/usr/sbin/munin07:45:141
144539960,2cyclictest15683-21/usr/sbin/munin11:15:171
144539960,0cyclictest0-21swapper/110:07:411
144489963,2cyclictest658-21snmpd11:13:400
144489963,2cyclictest658-21snmpd07:20:080
144489963,2cyclictest5587-21tail09:30:140
144489963,2cyclictest3457-21ssh11:07:130
144489963,2cyclictest30178-21tune2fs08:55:130
144489963,2cyclictest30173-21sh10:05:120
144489963,2cyclictest275-21systemd-journal11:35:250
144489963,2cyclictest275-21systemd-journal10:17:220
144489963,2cyclictest26290-21ssh12:39:500
144489963,2cyclictest23629-21ssh12:18:040
144489963,2cyclictest2218-21cat12:05:150
144489963,2cyclictest10807-21ssh09:53:040
144489963,2cyclictest1060-21ssh11:45:140
144489962,3cyclictest9350-21grep11:50:150
144489962,3cyclictest658-21snmpd12:28:180
144489962,3cyclictest658-21snmpd11:42:580
144489962,3cyclictest658-21snmpd11:32:340
144489962,3cyclictest658-21snmpd11:29:070
144489962,3cyclictest658-21snmpd11:02:120
144489962,3cyclictest658-21snmpd10:58:250
144489962,3cyclictest658-21snmpd10:30:530
144489962,3cyclictest658-21snmpd09:57:460
144489962,3cyclictest658-21snmpd09:35:250
144489962,3cyclictest658-21snmpd09:06:110
144489962,3cyclictest658-21snmpd08:51:320
144489962,3cyclictest658-21snmpd08:40:180
144489962,3cyclictest658-21snmpd08:39:060
144489962,3cyclictest658-21snmpd08:33:130
144489962,3cyclictest658-21snmpd08:22:220
144489962,3cyclictest658-21snmpd08:05:100
144489962,3cyclictest658-21snmpd08:00:150
144489962,3cyclictest658-21snmpd07:48:300
144489962,3cyclictest658-21snmpd07:29:120
144489962,3cyclictest275-21systemd-journal10:05:000
144489962,3cyclictest275-21systemd-journal09:05:000
144489962,3cyclictest275-21systemd-journal08:27:100
144489962,3cyclictest24748-21expr07:30:140
144489962,3cyclictest2426-21ssh09:47:550
144489962,3cyclictest1984-21sensors_temp07:50:180
144489962,3cyclictest18193-21cat07:15:150
144489962,3cyclictest15013-21cat07:10:120
144489962,1cyclictest0-21swapper/012:11:150
144489960,6cyclictest0-21swapper/008:15:040
144489960,5cyclictest21597-21sshd09:40:100
144489960,3cyclictest25707-21ssh12:00:110
144609952,2cyclictest9913-21cat08:10:123
144609952,2cyclictest983-21cat07:50:123
144609952,2cyclictest7694-21expr08:05:143
144609952,2cyclictest3676-21cat07:55:163
144609952,2cyclictest18281-21ls07:15:173
144609952,2cyclictest13848-21cat09:35:133
144609952,2cyclictest0-21swapper/312:15:113
144609951,3cyclictest24372-21threads08:40:193
144609950,3cyclictest19741-21/usr/sbin/munin07:20:113
144569953,1cyclictest663-21runrttasks08:40:152
144569953,1cyclictest12133-21expr08:15:122
144569952,2cyclictest658-21snmpd08:55:022
144569952,2cyclictest4831-21sh09:30:052
144569952,2cyclictest29101-21ssh09:25:092
144569952,2cyclictest29101-21ssh09:25:092
144569952,2cyclictest22532-21cat10:20:122
144569952,2cyclictest21004-21tr08:35:122
144569952,2cyclictest19186-21tail08:30:152
144569952,2cyclictest18776-21entropy12:15:132
144569952,2cyclictest17845-21expr07:15:132
144569952,2cyclictest17092-21cut08:25:152
144569952,2cyclictest15219-21expr07:10:142
144569952,2cyclictest14910-21ssh10:35:092
144569952,2cyclictest10410-21ssh12:30:022
144569952,2cyclictest10000-21expr08:10:132
144569951,3cyclictest7563-21ssh11:10:122
144569951,3cyclictest658-21snmpd07:40:122
144569951,3cyclictest22116-21grep07:25:112
144569951,3cyclictest1580-21cat11:45:162
144539953,1cyclictest16594-21cstates08:25:121
144539952,2cyclictest658-21snmpd09:25:061
144539952,2cyclictest658-21snmpd09:25:061
144539952,2cyclictest658-21snmpd07:35:031
144539952,2cyclictest658-21snmpd07:31:301
144539952,2cyclictest32473-21cat11:05:171
144539952,2cyclictest22-21ksoftirqd/108:55:111
144539952,2cyclictest19987-21expr07:20:121
144539952,2cyclictest18302-21grep11:55:181
144539952,2cyclictest16170-21ssh11:35:061
144539952,1cyclictest0-21swapper/112:35:081
144539952,1cyclictest0-21swapper/112:20:021
144539952,1cyclictest0-21swapper/109:15:021
144539951,3cyclictest658-21snmpd10:20:111
144539951,3cyclictest28174-21cat08:50:161
144539951,3cyclictest11339-21cat12:30:141
144539950,1cyclictest1758-21/usr/sbin/munin09:05:161
144489952,2cyclictest6414-21ssh10:10:130
144489952,2cyclictest29993-21sed09:25:140
144489952,2cyclictest29993-21sed09:25:140
144489952,2cyclictest15573-21gltestperf10:35:150
144489952,2cyclictest10387-21/usr/sbin/munin08:10:150
144489950,3cyclictest275-21systemd-journal07:55:050
144569941,2cyclictest24181-21/usr/sbin/munin07:30:112
144539942,1cyclictest21953-21taskset07:25:061
144539940,3cyclictest852-21cat07:50:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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