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2026-08-26 - 19:57
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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 Aug 26, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283352307280,18sleep10-21swapper/107:06:421
283892287256,21sleep20-21swapper/207:07:232
286092279216,21sleep30-21swapper/307:09:573
283542273244,19sleep00-21swapper/007:06:570
211392660,1sleep321132-21ssh12:25:133
89202610,0sleep30-21swapper/310:01:303
17682590,0sleep20-21swapper/207:20:122
49662580,0sleep30-21swapper/307:25:183
235312580,0sleep20-21swapper/210:10:182
256992570,0sleep00-21swapper/011:49:420
90182550,0sleep30-21swapper/311:00:163
19422550,0sleep20-21swapper/209:18:522
312512210,0sleep20-21swapper/212:30:532
93242130,0sleep10-21swapper/107:35:171
2872799133,6cyclictest6912-21ssh11:57:192
2872799123,7cyclictest275-21systemd-journal08:33:172
2872799112,5cyclictest31607-21ssh10:54:492
2872799111,6cyclictest972-21chrt07:16:002
2872799111,1cyclictest8267-21apt-get07:35:112
2872799111,1cyclictest11351-21apt-get12:20:022
2872799110,3cyclictest8961-21ssh12:18:092
2872799110,2cyclictest25916-21ssh09:13:592
2872799110,2cyclictest25507-21ssh11:49:342
2872799110,2cyclictest10601-21ssh09:43:272
2872799110,1cyclictest22121-21grep12:25:182
2873099109,1cyclictest34-21ksoftirqd/311:10:003
2872799103,6cyclictest0-21swapper/209:39:412
2872799100,3cyclictest5563-21chrt07:27:332
2872799100,3cyclictest275-21systemd-journal10:34:472
2872799100,3cyclictest21021-21cron09:50:012
2872799100,2cyclictest32510-21ssh11:14:552
2872799100,2cyclictest14490-11brltty08:40:262
2872799100,1cyclictest663-21runrttasks09:55:482
2872799100,1cyclictest30727-21snmpd08:35:152
2872799100,1cyclictest23043-21cat09:50:202
2872799100,1cyclictest166432sleep207:50:472
2872799100,1cyclictest12821-21sh10:43:072
2872799100,1cyclictest12761-21ssh11:02:272
2872799100,1cyclictest11860-21sed12:00:152
2872799100,1cyclictest11201-21hddtemp_smartct07:40:152
2872799100,1cyclictest0-21swapper/211:43:392
2872799100,1cyclictest0-21swapper/210:26:192
287279992,6cyclictest30727-21snmpd11:50:512
287279992,6cyclictest30727-21snmpd08:24:572
287279992,6cyclictest19719-21uniq12:05:132
287279991,1cyclictest711-21apt-get11:15:122
287279991,1cyclictest23946-21apt-get08:10:132
287279990,8cyclictest26442-21/usr/sbin/munin08:15:172
287279990,3cyclictest3101-21ssh10:37:012
287279990,3cyclictest22698-21rm09:30:382
287279990,2cyclictest504-21dbus-daemon09:00:002
287279990,2cyclictest4683-21ssh10:57:392
287279990,2cyclictest32191-21switchtime08:25:192
287279990,2cyclictest30893-21latency_hist07:15:012
287279990,2cyclictest18643-21cron09:10:002
287279990,1cyclictest9310-21ssh12:37:322
287279990,1cyclictest8175-21ssh10:00:562
287279990,1cyclictest6706-21ssh11:37:552
287279990,1cyclictest6448-21apt-get10:20:122
287279990,1cyclictest4810-21memory09:20:152
287279990,1cyclictest30377-21ssh10:15:042
287279990,1cyclictest29319-21ssh11:31:472
287279990,1cyclictest16420-21ssh11:05:072
287279990,1cyclictest0-21swapper/209:27:352
287279990,1cyclictest0-21swapper/208:45:002
26977290,0sleep30-21swapper/309:14:483
287309985,3cyclictest20006-21users11:45:203
287309983,4cyclictest50850irq/136-enp4s0-12:00:113
287309983,3cyclictest275-21systemd-journal07:50:163
287309980,7cyclictest26682-21ssh11:10:263
287279981,2cyclictest19102-21vmstat11:25:202
287279980,7cyclictest51250irq/139-enp4s0-11:20:082
287279980,3cyclictest21913-21cut08:05:132
287279980,3cyclictest13403-21grep07:45:142
287279980,2cyclictest27688-21awk12:10:122
287279980,2cyclictest275-21systemd-journal07:30:012
287279980,2cyclictest20551-21awk08:00:172
287279980,2cyclictest16984-21pmu-power10:45:212
287279980,2cyclictest14843-21df09:00:132
287279980,2cyclictest14438-21fschecks_count10:05:152
287279980,2cyclictest10404-21fschecks_count08:50:142
287279980,1cyclictest19051-21sshd07:58:092
287209985,2cyclictest12-21ksoftirqd/009:15:000
17927280,0sleep00-21swapper/010:45:400
11212280,0sleep00-21swapper/012:00:110
9817270,0sleep10-21swapper/110:40:481
287309976,1cyclictest16224-21ssh11:24:303
287309975,1cyclictest34-21ksoftirqd/309:40:003
287309973,3cyclictest275-21systemd-journal10:45:163
287309973,3cyclictest275-21systemd-journal09:57:413
287309973,3cyclictest275-21systemd-journal08:56:183
287309970,1cyclictest8494-21ssh12:36:553
287229976,1cyclictest19054-21sshd07:58:091
287229973,3cyclictest30727-21snmpd12:33:581
287229973,3cyclictest275-21systemd-journal09:39:591
287229973,1cyclictest8535-21turbostat11:19:591
287229970,4cyclictest25924-21apt-get08:15:011
287229970,3cyclictest6989-21idleruntime-cro10:40:001
287229970,1cyclictest26901-21ssh12:28:551
287209974,2cyclictest504-21dbus-daemon09:50:010
287209973,3cyclictest30727-21snmpd11:59:570
287209973,3cyclictest275-21systemd-journal09:19:590
287209973,3cyclictest275-21systemd-journal07:23:380
287209973,3cyclictest275-21systemd-journal07:13:030
287309966,0cyclictest0-21swapper/312:05:313
287309966,0cyclictest0-21swapper/311:53:153
287309966,0cyclictest0-21swapper/310:42:103
287309966,0cyclictest0-21swapper/310:15:423
287309963,2cyclictest5642-21diskstats08:40:133
287309963,2cyclictest501-21in:imuxsock07:42:253
287309963,2cyclictest327-21sh12:12:593
287309963,2cyclictest30727-21snmpd09:05:163
287309963,2cyclictest24611-21ssh10:10:483
287309963,2cyclictest23917-21tail10:30:153
287309963,2cyclictest21002-21fschecks_count09:30:123
287309963,2cyclictest16887-21cron11:29:553
287309963,2cyclictest16453-21sh10:05:553
287309962,3cyclictest8405-21expr07:35:123
287309962,3cyclictest5581-21cat09:40:153
287309962,3cyclictest5050-21cat12:15:193
287309962,3cyclictest31593-21cat08:25:153
287309962,3cyclictest30727-21snmpd11:31:513
287309962,3cyclictest30727-21snmpd10:35:373
287309962,3cyclictest30727-21snmpd09:22:583
287309962,3cyclictest30727-21snmpd09:18:193
287309962,3cyclictest30727-21snmpd08:46:153
287309962,3cyclictest30727-21snmpd08:35:273
287309962,3cyclictest30727-21snmpd08:02:173
287309962,3cyclictest30727-21snmpd07:59:193
287309962,3cyclictest30727-21snmpd07:15:133
287309962,3cyclictest275-21systemd-journal08:21:413
287309962,3cyclictest16070-21ntp_kernel_err10:25:183
287309962,3cyclictest12934-21cat12:20:163
287309962,3cyclictest12929-21cat07:45:133
287309962,3cyclictest11416-21threads11:40:203
287309962,1cyclictest0-21swapper/311:16:573
287309961,4cyclictest7244-21cut07:30:193
287309961,3cyclictest275-21systemd-journal09:25:083
287309961,1cyclictest0-21swapper/310:50:193
287309960,6cyclictest0-21swapper/310:59:153
287309960,5cyclictest14573-21cpuspeed_turbos09:00:123
287229966,0cyclictest0-21swapper/110:12:101
287229964,1cyclictest0-21swapper/110:55:121
287229963,2cyclictest7768-21ssh09:21:571
287229963,2cyclictest6968-21systemctl10:00:191
287229963,2cyclictest6033-21rm11:56:391
287229963,2cyclictest501-21in:imuxsock11:05:001
287229963,2cyclictest30727-21snmpd07:11:251
287229963,2cyclictest28457-21ssh11:11:491
287229963,2cyclictest27285-21sh09:53:281
287229963,2cyclictest26026-21rm11:49:581
287229963,2cyclictest23075-21rm09:30:561
287229963,2cyclictest21812-21ssh12:05:581
287229963,2cyclictest20151-21cat09:10:141
287229963,2cyclictest19094-21ssh09:29:161
287229963,2cyclictest1886-21ssh10:16:541
287229963,2cyclictest13512-21ssh11:22:251
287229963,1cyclictest0-21swapper/111:08:091
287229963,1cyclictest0-21swapper/110:26:541
287229962,3cyclictest7923-21cat10:20:201
287229962,3cyclictest504-21dbus-daemon09:45:001
287229962,3cyclictest4268-21cat12:15:131
287229962,3cyclictest30727-21snmpd11:30:481
287229962,3cyclictest30727-21snmpd09:59:391
287229962,3cyclictest30727-21snmpd09:47:391
287229962,3cyclictest30727-21snmpd09:00:401
287229962,3cyclictest30727-21snmpd08:07:441
287229962,3cyclictest30727-21snmpd07:26:151
287229962,3cyclictest30727-21snmpd07:21:101
287229962,3cyclictest29357-21cat08:20:151
287229962,3cyclictest28757-21cat09:15:141
287229962,3cyclictest28133-21expr11:50:211
287229962,3cyclictest275-21systemd-journal08:27:061
287229962,3cyclictest17343-21cat09:05:141
287229962,3cyclictest16653-11brltty10:54:481
287229962,3cyclictest12934-21cut08:55:171
287229962,1cyclictest141rcu_preempt10:45:141
287229960,6cyclictest0-21swapper/112:36:011
287229960,6cyclictest0-21swapper/112:10:091
287229960,0cyclictest0-21swapper/111:35:241
287229960,0cyclictest0-21swapper/111:29:091
287229960,0cyclictest0-21swapper/110:09:531
287209964,1cyclictest28634-21latency_hist08:20:000
287209963,2cyclictest9258-21sh10:40:220
287209963,2cyclictest8116-21ssh09:22:140
287209963,2cyclictest6791-21ssh12:16:290
287209963,2cyclictest504-21dbus-daemon11:05:370
287209963,2cyclictest4165-21ssh11:35:580
287209963,2cyclictest29218-21fschecks_count12:30:130
287209963,2cyclictest275-21systemd-journal10:16:500
287209963,2cyclictest275-21systemd-journal09:40:000
287209963,2cyclictest25914-21ssh10:30:590
287209963,2cyclictest17165-21ssh11:25:030
287209963,2cyclictest13658-21sh09:25:200
287209963,2cyclictest13575-21ssh11:41:490
287209962,3cyclictest8086-21cat08:45:110
287209962,3cyclictest31713-21cat10:35:130
287209962,3cyclictest30727-21snmpd12:36:550
287209962,3cyclictest30727-21snmpd11:52:180
287209962,3cyclictest30727-21snmpd10:58:260
287209962,3cyclictest30727-21snmpd10:05:480
287209962,3cyclictest30727-21snmpd09:31:310
287209962,3cyclictest30727-21snmpd09:06:340
287209962,3cyclictest30727-21snmpd08:54:250
287209962,3cyclictest30727-21snmpd08:35:570
287209962,3cyclictest30727-21snmpd08:32:150
287209962,3cyclictest30727-21snmpd08:30:000
287209962,3cyclictest30727-21snmpd07:50:080
287209962,3cyclictest30727-21snmpd07:40:070
287209962,3cyclictest30727-21snmpd07:18:310
287209962,3cyclictest28985-21sensors_temp12:10:190
287209962,3cyclictest275-21systemd-journal09:03:230
287209962,3cyclictest23333-21cat10:10:170
287209962,3cyclictest21330-21expr12:25:140
287209962,1cyclictest0-21swapper/009:50:360
287209962,1cyclictest0-21swapper/009:41:410
287209961,2cyclictest12-21ksoftirqd/007:35:010
287209960,6cyclictest0-21swapper/011:15:310
287209960,5cyclictest504-21dbus-daemon10:01:010
287209960,5cyclictest14763-21sh11:23:240
287209960,2cyclictest12195-21/usr/sbin/munin08:55:180
287209960,0cyclictest0-21swapper/009:57:050
25517260,0sleep00-21swapper/010:50:200
287309953,1cyclictest25449-21grep08:10:213
287309953,1cyclictest18662-21diskmemload09:45:023
287309952,2cyclictest30727-21snmpd12:30:073
287309952,2cyclictest28907-21taskset07:10:093
287309952,2cyclictest275-21systemd-journal08:50:023
287309952,2cyclictest2392-21expr07:20:163
287309952,2cyclictest21305-21ssh09:50:043
287309951,3cyclictest27419-21ntp_states08:15:173
287309951,3cyclictest1683-21/usr/sbin/munin11:35:133
287309951,3cyclictest0-21swapper/310:20:103
287309950,4cyclictest22110-21df_inode08:05:133
287309950,4cyclictest1972-21mailstats08:30:183
287309950,2cyclictest2773-21cat11:55:123
287229953,1cyclictest8006-21sh07:35:011
287229953,1cyclictest663-21runrttasks07:50:301
287229953,1cyclictest13206-21df07:45:131
287229952,2cyclictest9756-21sh11:40:041
287229952,2cyclictest8140-21cat08:45:111
287229952,2cyclictest32230-21grep07:15:151
287229952,2cyclictest26814-21expr08:15:131
287229952,2cyclictest23261-21sh10:30:081
287229952,2cyclictest1055-21expr08:30:121
287229952,1cyclictest0-21swapper/112:20:071
287229952,1cyclictest0-21swapper/112:00:011
287229951,3cyclictest3733-21cut08:35:171
287229951,3cyclictest10582-21/usr/sbin/munin07:40:141
287229950,3cyclictest275-21systemd-journal08:51:431
287229950,3cyclictest275-21systemd-journal08:40:271
287229950,1cyclictest19484-21/usr/sbin/munin08:00:121
287209953,2cyclictest8290-21apt11:00:140
287209953,1cyclictest25610-21sh11:30:090
287209952,2cyclictest8696-21uniq07:35:130
287209952,2cyclictest6183-21ntp_kernel_pll_08:40:160
287209952,2cyclictest30727-21snmpd07:45:110
287209952,2cyclictest30727-21snmpd07:25:040
287209952,2cyclictest24721-21ssh11:10:080
287209952,2cyclictest24618-21cat08:10:150
287209952,2cyclictest19041-21ssh12:05:010
287209952,2cyclictest18205-21grep07:55:170
287209952,2cyclictest15813-21cat10:25:160
287209952,2cyclictest12114-21ssh12:20:100
287209952,1cyclictest0-21swapper/010:20:060
287209951,3cyclictest22129-21/usr/sbin/munin08:05:140
287209950,3cyclictest275-21systemd-journal08:00:250
287209950,0cyclictest0-21swapper/008:20:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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