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2026-08-24 - 19:46
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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 Aug 24, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313952314283,21sleep10-21swapper/107:06:171
297272307280,18sleep20-21swapper/207:05:062
314702274213,20sleep30-21swapper/307:07:163
315132268239,19sleep00-21swapper/007:07:490
194912640,0sleep10-21swapper/110:45:131
230262570,0sleep20-21swapper/212:24:042
59712560,0sleep20-21swapper/210:55:552
282542560,0sleep30-21swapper/309:33:063
222612560,0sleep20-21swapper/209:49:202
151772540,0sleep10-21swapper/112:19:311
77722530,0sleep00-21swapper/011:55:190
19632440,0sleep20-21swapper/212:10:512
58432190,0sleep30-21swapper/309:58:343
55702180,0sleep30-21swapper/311:15:183
274702180,0sleep10-21swapper/112:26:031
91802170,0sleep30-21swapper/311:56:023
235132170,0sleep10-21swapper/109:50:071
40762150,0sleep10-21swapper/111:53:321
287322140,0sleep20-21swapper/211:49:002
287322140,0sleep20-21swapper/211:49:002
188532140,0sleep30-21swapper/311:04:213
69282130,0sleep20-21swapper/207:25:132
239172130,0sleep00-21swapper/010:47:360
206662130,0sleep20-21swapper/209:05:192
127182130,0sleep10-21swapper/112:36:441
285622110,3sleep122-21ksoftirqd/109:33:201
3180399102,6cyclictest0-21swapper/112:03:391
3180199101,5cyclictest12-21ksoftirqd/010:55:540
318039992,5cyclictest0-21swapper/111:25:451
318039992,5cyclictest0-21swapper/110:36:021
318039991,6cyclictest22-21ksoftirqd/111:03:391
318039991,5cyclictest0-21swapper/109:10:391
318039990,6cyclictest15656-21ssh09:25:171
318019997,2cyclictest12-21ksoftirqd/012:30:000
318019993,4cyclictest12-21ksoftirqd/011:54:170
318019992,4cyclictest12-21ksoftirqd/012:00:560
318019992,4cyclictest12-21ksoftirqd/011:48:280
318019992,4cyclictest12-21ksoftirqd/011:48:270
318019992,4cyclictest12-21ksoftirqd/011:12:440
318019992,4cyclictest12-21ksoftirqd/011:00:250
318019992,4cyclictest12-21ksoftirqd/010:35:090
318019992,4cyclictest12-21ksoftirqd/010:30:420
318019991,6cyclictest12-21ksoftirqd/012:05:250
318019991,5cyclictest12-21ksoftirqd/011:29:540
318019991,5cyclictest12-21ksoftirqd/011:21:030
318019991,5cyclictest12-21ksoftirqd/009:53:240
318019991,1cyclictest12-21ksoftirqd/010:00:010
318119986,1cyclictest34-21ksoftirqd/309:20:003
318119983,3cyclictest275-21systemd-journal10:03:253
318039987,0cyclictest31521-21apt-get09:55:051
318039983,3cyclictest275-21systemd-journal10:20:091
318039983,3cyclictest141rcu_preempt11:07:141
318039982,5cyclictest6668-21sort09:20:131
318039982,5cyclictest22-21ksoftirqd/111:45:091
318039982,5cyclictest22-21ksoftirqd/111:45:091
318039982,5cyclictest22-21ksoftirqd/111:21:581
318039982,5cyclictest0-21swapper/110:05:431
318039982,4cyclictest0-21swapper/112:31:131
318039982,4cyclictest0-21swapper/111:55:221
318039982,4cyclictest0-21swapper/111:32:161
318039982,4cyclictest0-21swapper/110:57:591
318039982,4cyclictest0-21swapper/110:28:431
318039981,5cyclictest22-21ksoftirqd/111:11:591
318039981,5cyclictest0-21swapper/112:13:401
318039981,5cyclictest0-21swapper/112:06:551
318039981,5cyclictest0-21swapper/111:42:521
318039981,5cyclictest0-21swapper/111:36:311
318039981,5cyclictest0-21swapper/110:51:591
318039981,5cyclictest0-21swapper/109:17:551
318039981,4cyclictest0-21swapper/110:16:351
318039980,6cyclictest0-21swapper/110:42:381
318039980,4cyclictest4219-21/usr/sbin/munin08:30:141
318039980,4cyclictest26184-21ps08:05:191
318039980,3cyclictest21360-21diskmemload12:20:141
318019987,1cyclictest131rcuc/008:50:000
318019984,3cyclictest23989-21ntpq09:30:170
318019983,3cyclictest275-21systemd-journal09:20:220
318019983,3cyclictest275-21systemd-journal07:56:550
318019982,4cyclictest8347-21kworker/0:112:21:380
318019982,4cyclictest12-21ksoftirqd/012:31:250
318019982,4cyclictest12-21ksoftirqd/012:10:220
318019982,4cyclictest12-21ksoftirqd/008:30:200
318019982,4cyclictest0-21swapper/009:48:030
318019982,3cyclictest12-21ksoftirqd/011:36:480
318019981,5cyclictest12-21ksoftirqd/012:36:010
318019981,5cyclictest12-21ksoftirqd/011:40:220
318019981,5cyclictest12-21ksoftirqd/009:37:400
318019981,5cyclictest12-21ksoftirqd/009:25:420
318019981,5cyclictest0-21swapper/011:05:380
318019981,4cyclictest12-21ksoftirqd/012:16:500
318019981,4cyclictest12-21ksoftirqd/010:50:050
318019981,4cyclictest12-21ksoftirqd/010:27:120
318019981,4cyclictest12-21ksoftirqd/010:21:410
318019981,4cyclictest12-21ksoftirqd/010:16:320
318019981,4cyclictest12-21ksoftirqd/009:41:210
318019981,4cyclictest12-21ksoftirqd/009:15:490
318019981,4cyclictest12-21ksoftirqd/009:11:000
318019981,3cyclictest12-21ksoftirqd/011:15:080
318019981,1cyclictest12-21ksoftirqd/010:10:200
318019980,6cyclictest12-21ksoftirqd/011:31:570
318019980,6cyclictest12-21ksoftirqd/010:00:280
318019980,5cyclictest8347-21kworker/0:110:06:280
318019980,5cyclictest12-21ksoftirqd/010:40:190
318119974,2cyclictest1919-21cron10:39:553
318119973,3cyclictest275-21systemd-journal12:21:543
318119970,7cyclictest0-21swapper/310:27:183
318069974,2cyclictest491-21systemd-logind09:28:232
318069973,3cyclictest275-21systemd-journal09:05:002
318039976,1cyclictest4703-21apt-get07:20:131
318039975,2cyclictest11363-21apt-get07:35:131
318039975,1cyclictest18432-21apt-get07:50:101
318039975,1cyclictest15133-21grep07:40:181
318039973,3cyclictest504-21dbus-daemon09:10:001
318039973,3cyclictest27895-21awk10:30:211
318039973,3cyclictest1355-21perf08:25:001
318039972,1cyclictest24862-21awk08:05:011
318039971,4cyclictest141rcu_preempt09:47:161
318039971,4cyclictest0-21swapper/110:10:031
318039971,4cyclictest0-21swapper/110:00:491
318039971,4cyclictest0-21swapper/109:43:181
318039971,4cyclictest0-21swapper/109:35:551
318039971,4cyclictest0-21swapper/107:57:121
318039971,1cyclictest22-21ksoftirqd/109:00:191
318039971,0cyclictest141rcu_preempt11:15:011
318019976,1cyclictest12-21ksoftirqd/009:10:000
318019974,2cyclictest27902-21cut08:10:150
318019973,3cyclictest18179-21cut07:50:010
318019972,3cyclictest12-21ksoftirqd/008:40:040
318019971,4cyclictest12-21ksoftirqd/008:05:090
318019971,4cyclictest12-21ksoftirqd/007:15:040
318019971,4cyclictest0-21swapper/007:50:140
318019971,1cyclictest12-21ksoftirqd/007:40:100
318019970,4cyclictest12-21ksoftirqd/009:01:530
318019970,4cyclictest12-21ksoftirqd/008:00:030
318019970,4cyclictest0-21swapper/008:20:160
318019970,4cyclictest0-21swapper/007:24:320
26612270,0sleep30-21swapper/312:25:253
9003260,0sleep10-21swapper/108:40:151
6619260,0sleep20-21swapper/211:55:132
318119966,0cyclictest0-21swapper/309:53:163
318119963,3cyclictest0-21swapper/309:11:533
318119963,2cyclictest9268-21ssh09:40:423
318119963,2cyclictest31534-21sh10:32:533
318119963,2cyclictest30727-21snmpd10:57:173
318119963,2cyclictest30727-21snmpd07:26:013
318119963,2cyclictest275-21systemd-journal08:13:363
318119963,2cyclictest275-21systemd-journal07:49:523
318119963,2cyclictest275-21systemd-journal07:49:523
318119963,2cyclictest2685-21rm11:52:283
318119963,2cyclictest24587-21ssh11:26:383
318119963,2cyclictest1768-21ssh12:10:423
318119963,2cyclictest15237-21taskset10:23:183
318119963,2cyclictest1-21systemd12:38:353
318119963,2cyclictest11922-21rm09:23:213
318119963,1cyclictest0-21swapper/311:48:323
318119963,1cyclictest0-21swapper/311:48:323
318119962,3cyclictest32136-21ls07:10:143
318119962,3cyclictest30727-21snmpd12:32:223
318119962,3cyclictest30727-21snmpd12:19:043
318119962,3cyclictest30727-21snmpd11:39:273
318119962,3cyclictest30727-21snmpd11:21:293
318119962,3cyclictest30727-21snmpd11:12:383
318119962,3cyclictest30727-21snmpd09:28:113
318119962,3cyclictest30727-21snmpd08:51:373
318119962,3cyclictest30727-21snmpd08:30:063
318119962,3cyclictest30727-21snmpd07:16:163
318119962,3cyclictest275-21systemd-journal07:34:433
318119962,3cyclictest27483-21/usr/sbin/munin10:50:153
318119962,3cyclictest27037-21sshd08:09:523
318119962,3cyclictest25330-21cat10:10:133
318119962,3cyclictest23217-21ls08:00:143
318119962,3cyclictest19919-21cat10:45:153
318119962,3cyclictest19100-21cat07:50:133
318119962,3cyclictest16006-21cat12:00:163
318119962,3cyclictest14363-21cat07:40:133
318119962,1cyclictest0-21swapper/312:07:533
318119962,1cyclictest0-21swapper/311:05:303
318119961,4cyclictest0-21swapper/310:40:213
318119961,3cyclictest275-21systemd-journal11:30:393
318119960,5cyclictest16423-21ntp_states09:45:193
318069966,0cyclictest0-21swapper/209:32:122
318069963,2cyclictest951-21ssh10:15:062
318069963,2cyclictest8200-21sh11:16:502
318069963,2cyclictest649-21sh09:16:102
318069963,2cyclictest6167-21cat11:35:162
318069963,2cyclictest504-21dbus-daemon11:08:322
318069963,2cyclictest30727-21snmpd10:14:582
318069963,2cyclictest30727-21snmpd09:21:172
318069963,2cyclictest29560-21apt-get08:15:122
318069963,2cyclictest275-21systemd-journal08:33:082
318069963,2cyclictest25614-21ssh12:05:332
318069963,2cyclictest2465-11brltty10:48:512
318069963,2cyclictest15486-21head08:55:142
318069963,2cyclictest15371-21sh11:01:412
318069963,2cyclictest13243-21sh10:21:472
318069963,2cyclictest0-21swapper/210:36:182
318069963,1cyclictest0-21swapper/211:25:312
318069963,1cyclictest0-21swapper/210:01:012
318069962,3cyclictest8791-21fw_packets08:40:132
318069962,3cyclictest30727-21snmpd12:17:032
318069962,3cyclictest30727-21snmpd11:32:302
318069962,3cyclictest30727-21snmpd11:24:112
318069962,3cyclictest30727-21snmpd10:25:042
318069962,3cyclictest30727-21snmpd09:58:012
318069962,3cyclictest30727-21snmpd08:10:112
318069962,3cyclictest30727-21snmpd08:05:502
318069962,3cyclictest30727-21snmpd08:00:292
318069962,3cyclictest30727-21snmpd07:56:112
318069962,3cyclictest29264-21cat11:10:152
318069962,3cyclictest16447-21expr07:45:152
318069962,3cyclictest16447-21expr07:45:152
318069962,3cyclictest15370-21cat12:00:132
318069962,3cyclictest11200-21expr10:40:142
318069962,2cyclictest9277-1kworker/u9:012:26:562
318069961,4cyclictest0-21swapper/212:35:182
318069961,3cyclictest275-21systemd-journal11:40:132
318069960,6cyclictest0-21swapper/210:08:182
318039965,1cyclictest10511-21apt-get08:45:121
318039963,2cyclictest2494-21grep08:25:171
318039963,2cyclictest16895-21cat09:00:001
318039963,2cyclictest16866-21ntp_states07:45:181
318039963,2cyclictest16866-21ntp_states07:45:181
318039962,3cyclictest6902-21basename07:25:121
318039962,3cyclictest29962-21grep08:15:141
318039962,3cyclictest13114-21df08:50:151
318039962,1cyclictest141rcu_preempt08:39:561
318039960,4cyclictest0-21swapper/107:19:561
318039960,2cyclictest22-21ksoftirqd/108:10:201
318039960,2cyclictest0-21swapper/107:10:151
318039960,1cyclictest22-21ksoftirqd/107:30:111
318019965,1cyclictest131rcuc/008:50:150
318019963,2cyclictest9874-21cat07:30:140
318019963,2cyclictest679-21cut07:10:190
318019962,3cyclictest30727-21snmpd08:35:450
318019962,3cyclictest30727-21snmpd08:15:500
318019962,1cyclictest141rcu_preempt08:55:180
318019961,3cyclictest141rcu_preempt07:45:130
318019961,3cyclictest12-21ksoftirqd/007:25:140
318019960,4cyclictest12-21ksoftirqd/007:35:180
318119953,1cyclictest663-21runrttasks08:39:283
318119953,1cyclictest32441-21sort08:20:143
318119952,2cyclictest8752-21fschecks_time08:40:133
318119952,2cyclictest663-21runrttasks09:05:123
318119952,2cyclictest4920-21expr07:20:143
318119952,2cyclictest31012-21ssh09:35:053
318119952,2cyclictest30727-21snmpd07:36:073
318119952,2cyclictest30214-21cat08:15:153
318119952,2cyclictest21605-21ntpq07:55:173
318119952,2cyclictest16582-21sh10:05:093
318119952,2cyclictest14104-21expr11:40:133
318119952,2cyclictest11186-21interrupts08:45:163
318119951,3cyclictest30727-21snmpd10:15:103
318119951,3cyclictest1915-21expr08:25:133
318119950,3cyclictest275-21systemd-journal09:00:053
318119950,3cyclictest275-21systemd-journal08:55:093
318069952,2cyclictest7747-21basename09:40:152
318069952,2cyclictest5901-21smart_sda07:20:202
318069952,2cyclictest30727-21snmpd12:30:042
318069952,2cyclictest30727-21snmpd09:35:042
318069952,2cyclictest30727-21snmpd07:35:132
318069952,2cyclictest30508-21acpi11:50:122
318069952,2cyclictest27212-21/usr/sbin/munin10:30:172
318069952,2cyclictest22231-21df09:10:122
318069952,2cyclictest14201-21gltestperf07:40:122
318069952,2cyclictest1-21systemd07:50:012
318069952,2cyclictest10518-21grep08:45:132
318069951,3cyclictest6638-21head08:35:152
318069951,3cyclictest32199-21/usr/sbin/munin08:20:132
318069951,3cyclictest310-21/usr/sbin/munin07:10:172
318069951,3cyclictest30727-21snmpd08:25:482
318069951,3cyclictest23519-21ssh09:50:072
318069951,3cyclictest2339-21munin-node07:15:022
318069951,3cyclictest0-21swapper/210:50:012
318069950,3cyclictest275-21systemd-journal08:50:092
318069950,1cyclictest9111-21/usr/sbin/munin07:30:122
318019955,0cyclictest0-21swapper/008:25:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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