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2026-04-09 - 07:38
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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 Thu Apr 09, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207642289258,20sleep20-21swapper/219:07:142
207892284252,21sleep10-21swapper/119:07:321
190332265234,20sleep00-21swapper/019:05:110
207652262230,21sleep30-21swapper/319:07:153
45652630,1sleep20-21swapper/223:02:422
315432620,0sleep10-21swapper/122:40:111
19472620,0sleep10-21swapper/119:35:201
75582590,0sleep00-21swapper/023:05:010
133912590,0sleep10-21swapper/122:29:061
44222570,0sleep20-21swapper/220:55:002
37342570,0sleep00-21swapper/023:40:480
37342570,0sleep00-21swapper/023:40:480
243712570,0sleep20-21swapper/223:34:422
21672560,0sleep10-21swapper/100:00:111
24482550,0sleep20-21swapper/222:22:022
138182540,0sleep30-21swapper/323:08:283
150142530,0sleep00-21swapper/000:07:390
23352200,0sleep10-21swapper/123:20:271
272652180,0sleep20-21swapper/223:16:042
43442170,0sleep20-21swapper/223:22:002
219632150,0sleep00-21swapper/023:13:210
58122130,0sleep20-21swapper/222:05:042
286602130,0sleep00-21swapper/021:20:120
196122130,0sleep10-21swapper/100:30:141
169912130,0sleep20-21swapper/221:52:032
174872110,0sleep00-21swapper/021:13:400
211179992,4cyclictest18501-21dump-pmu-power20:15:011
211259983,3cyclictest275-21systemd-journal21:45:093
211259980,7cyclictest27315-21ssh21:39:063
211209984,3cyclictest8651-21cron21:05:002
211129981,6cyclictest26228-21idleruntime-cro00:15:000
19187280,0sleep20-21swapper/200:10:132
22138270,1sleep122133-21perf22:15:001
211259974,2cyclictest504-21dbus-daemon21:30:333
211259974,2cyclictest504-21dbus-daemon20:20:223
211259973,3cyclictest658-21snmpd23:21:133
211259973,3cyclictest504-21dbus-daemon21:17:093
211259973,3cyclictest2216-21cut00:19:593
211259973,1cyclictest0-21swapper/321:21:113
211259972,2cyclictest26473-21expr23:55:123
211259970,0cyclictest0-21swapper/323:17:523
211209975,2cyclictest28-21ksoftirqd/219:50:012
211209973,3cyclictest658-21snmpd21:25:512
211209973,3cyclictest560-21gdbus19:20:012
211209973,2cyclictest275-21systemd-journal21:55:112
211179973,3cyclictest658-21snmpd21:36:061
211179973,2cyclictest658-21snmpd22:07:141
211179972,3cyclictest275-21systemd-journal21:58:531
211129973,3cyclictest8454-21df_inode23:05:130
211129973,3cyclictest658-21snmpd00:15:180
211129973,3cyclictest504-21dbus-daemon19:27:490
211129973,3cyclictest3993-21memory19:40:150
211129973,1cyclictest0-21swapper/022:03:310
211129970,1cyclictest0-21swapper/022:33:160
4617260,0sleep20-21swapper/220:55:122
21471260,0sleep10-21swapper/123:51:501
211259966,0cyclictest0-21swapper/323:52:163
211259966,0cyclictest0-21swapper/322:17:153
211259965,1cyclictest15794-1kworker/u9:122:05:023
211259964,1cyclictest27097-21irqstats19:20:153
211259964,1cyclictest10883-21diskmemload00:35:123
211259963,2cyclictest9605-21apt23:45:123
211259963,2cyclictest9455-21head21:05:113
211259963,2cyclictest850-21ntpq23:00:183
211259963,2cyclictest7342-21basename21:00:143
211259963,2cyclictest658-21snmpd22:23:453
211259963,2cyclictest658-21snmpd20:17:013
211259963,2cyclictest6537-21awk19:45:183
211259963,2cyclictest504-21dbus-daemon20:15:013
211259963,2cyclictest4607-21cat21:25:123
211259963,2cyclictest361-21ssh22:40:183
211259963,2cyclictest3176-21awk00:00:163
211259963,2cyclictest29700-21processes19:25:183
211259963,2cyclictest29096-21cpuspeed_turbos21:40:113
211259963,2cyclictest275-21systemd-journal20:50:013
211259963,2cyclictest26334-21uname23:35:153
211259963,2cyclictest24432-21ls22:55:213
211259963,2cyclictest23234-21sshd19:14:403
211259963,2cyclictest1939-21date20:50:003
211259963,2cyclictest19358-21ls00:30:133
211259963,2cyclictest17902-21grep23:30:153
211259963,2cyclictest16174-21awk22:30:183
211259963,2cyclictest15861-21users20:05:203
211259963,2cyclictest13453-21wc20:00:183
211259963,1cyclictest0-21swapper/300:21:593
211259962,3cyclictest658-21snmpd23:41:293
211259962,3cyclictest658-21snmpd23:41:293
211259962,3cyclictest658-21snmpd22:36:453
211259962,3cyclictest658-21snmpd22:01:293
211259962,3cyclictest658-21snmpd21:51:413
211259962,3cyclictest658-21snmpd19:52:073
211259962,3cyclictest658-21snmpd19:16:153
211259962,3cyclictest658-21snmpd00:05:513
211259962,3cyclictest426-21cat19:35:013
211259962,3cyclictest23913-21cat20:25:163
211259962,3cyclictest18774-21expr00:10:113
211259962,3cyclictest11507-21ls00:25:153
211259962,1cyclictest0-21swapper/322:25:193
211259960,6cyclictest0-21swapper/323:13:033
211259960,6cyclictest0-21swapper/322:50:123
211259960,6cyclictest0-21swapper/320:30:113
211259960,5cyclictest14322-21ssh22:10:133
211259960,5cyclictest12169-21ssh22:47:433
211259960,3cyclictest12205-21grep21:10:153
211259960,0cyclictest0-21swapper/321:55:283
211209966,0cyclictest0-21swapper/223:41:302
211209966,0cyclictest0-21swapper/223:41:302
211209966,0cyclictest0-21swapper/223:25:522
211209966,0cyclictest0-21swapper/223:06:012
211209963,2cyclictest663-21runrttasks23:52:392
211209963,2cyclictest658-21snmpd21:10:392
211209963,2cyclictest658-21snmpd00:17:512
211209963,2cyclictest658-21snmpd00:05:112
211209963,2cyclictest501-21in:imuxsock00:00:012
211209963,2cyclictest491-21systemd-logind21:22:382
211209963,2cyclictest30800-21tail20:40:162
211209963,2cyclictest275-21systemd-journal22:44:062
211209963,2cyclictest27044-21taskset20:30:352
211209963,2cyclictest26484-21sh23:55:122
211209963,2cyclictest19552-21memory20:15:152
211209963,2cyclictest15504-21diskstats22:30:142
211209962,3cyclictest658-21snmpd22:35:512
211209962,3cyclictest658-21snmpd22:16:352
211209962,3cyclictest658-21snmpd22:12:562
211209962,3cyclictest658-21snmpd22:03:322
211209962,3cyclictest658-21snmpd21:46:462
211209962,3cyclictest658-21snmpd21:31:452
211209962,3cyclictest658-21snmpd21:06:022
211209962,3cyclictest658-21snmpd20:45:172
211209962,3cyclictest658-21snmpd20:28:442
211209962,3cyclictest658-21snmpd20:09:492
211209962,3cyclictest658-21snmpd19:50:462
211209962,3cyclictest658-21snmpd00:27:422
211209962,3cyclictest504-21dbus-daemon22:55:462
211209962,3cyclictest27083-21cat19:20:152
211209962,3cyclictest1651-21sed19:35:182
211209960,6cyclictest0-21swapper/223:11:552
211209960,5cyclictest560-21gdbus21:45:012
211209960,0cyclictest0-21swapper/222:54:502
211209960,0cyclictest0-21swapper/222:27:252
211209960,0cyclictest0-21swapper/200:30:062
211179966,0cyclictest0-21swapper/123:00:441
211179964,1cyclictest26141-11brltty21:20:081
211179963,2cyclictest9056-21ssh23:44:581
211179963,2cyclictest9056-21ssh23:44:571
211179963,2cyclictest658-21snmpd22:16:321
211179963,2cyclictest658-21snmpd21:01:141
211179963,2cyclictest658-21snmpd20:00:461
211179963,2cyclictest30617-21ssh23:18:401
211179963,2cyclictest29617-21gdbus22:00:021
211179963,2cyclictest275-21systemd-journal21:42:531
211179963,2cyclictest2315-21ssh00:20:011
211179963,2cyclictest22836-21ssh21:16:211
211179963,2cyclictest12367-21sshd21:30:061
211179963,2cyclictest10075-21sh21:28:301
211179962,3cyclictest658-21snmpd23:38:231
211179962,3cyclictest658-21snmpd23:29:051
211179962,3cyclictest658-21snmpd21:09:481
211179962,3cyclictest658-21snmpd20:35:251
211179962,3cyclictest658-21snmpd20:33:071
211179962,3cyclictest658-21snmpd20:27:231
211179962,3cyclictest658-21snmpd19:57:461
211179962,3cyclictest658-21snmpd19:49:341
211179962,3cyclictest275-21systemd-journal20:17:481
211179962,3cyclictest23052-21seq23:33:401
211179962,3cyclictest22275-21ntpq19:10:161
211179962,3cyclictest19230-21cat00:10:141
211179962,3cyclictest15594-21awk22:50:111
211179962,3cyclictest13498-21forks21:50:141
211179962,3cyclictest12593-21basename21:50:011
211179962,3cyclictest11359-21ntpq00:05:161
211179961,3cyclictest27792-21rm22:37:271
211179960,6cyclictest10883-21diskmemload23:11:271
211179960,6cyclictest0-21swapper/122:21:101
211129966,0cyclictest0-21swapper/023:30:230
211129966,0cyclictest0-21swapper/021:47:110
211129963,2cyclictest914-21ssh22:40:220
211129963,2cyclictest9121-21ssh00:24:040
211129963,2cyclictest674-21lldpd20:15:390
211129963,2cyclictest658-21snmpd22:15:440
211129963,2cyclictest504-21dbus-daemon00:31:490
211129963,2cyclictest3845-21taskset23:21:360
211129963,2cyclictest304-21systemd-udevd22:06:360
211129963,2cyclictest28257-21grep00:35:160
211129963,2cyclictest275-21systemd-journal20:56:180
211129963,2cyclictest275-21systemd-journal20:07:470
211129963,2cyclictest18652-21ssh23:50:150
211129963,2cyclictest12006-21ssh22:28:020
211129963,2cyclictest11286-21fschecks_count00:25:140
211129962,3cyclictest9000-21cat23:25:120
211129962,3cyclictest658-21snmpd23:15:400
211129962,3cyclictest658-21snmpd22:48:390
211129962,3cyclictest658-21snmpd21:36:180
211129962,3cyclictest658-21snmpd20:48:050
211129962,3cyclictest658-21snmpd20:42:380
211129962,3cyclictest658-21snmpd20:38:140
211129962,3cyclictest658-21snmpd20:23:130
211129962,3cyclictest658-21snmpd20:11:520
211129962,3cyclictest658-21snmpd19:35:390
211129962,3cyclictest658-21snmpd19:30:570
211129962,3cyclictest6341-21ntp_kernel_err19:45:160
211129962,3cyclictest504-21dbus-daemon21:55:010
211129962,3cyclictest29345-21expr21:40:120
211129962,3cyclictest275-21systemd-journal22:55:010
211129962,3cyclictest275-21systemd-journal21:17:500
211129962,3cyclictest25408-21date20:30:000
211129962,3cyclictest12485-21basename21:30:100
211129962,3cyclictest1-21systemd19:10:170
211129962,3cyclictest10349-21cat23:45:150
211129962,1cyclictest0-21swapper/023:58:150
211129962,1cyclictest0-21swapper/021:59:410
211129962,1cyclictest0-21swapper/000:00:310
211129960,6cyclictest0-21swapper/023:35:480
211129960,6cyclictest0-21swapper/022:50:420
211129960,6cyclictest0-21swapper/022:11:510
211129960,5cyclictest26386-21/usr/sbin/munin19:20:190
211259953,1cyclictest30524-21hddtemp_smartct20:40:143
211259953,1cyclictest27859-21grep20:35:123
211259953,1cyclictest0-21swapper/323:25:013
211259952,2cyclictest658-21snmpd19:55:103
211259952,2cyclictest3189-21cat19:40:113
211259952,2cyclictest1329-21cat19:35:153
211259950,3cyclictest275-21systemd-journal20:55:033
211209953,2cyclictest501-21in:imuxsock20:35:522
211209952,2cyclictest9611-21dpkg23:45:122
211209952,2cyclictest8320-21cat22:45:202
211209952,2cyclictest658-21snmpd19:10:032
211209952,2cyclictest2364-21rm00:20:032
211209952,2cyclictest20989-21acpi20:20:112
211209952,2cyclictest20568-21ssh21:35:052
211209952,2cyclictest18625-21date20:15:012
211209952,2cyclictest12992-21netstat20:00:152
211209952,2cyclictest11815-21latency_hist20:00:012
211209951,3cyclictest31222-21df19:30:122
211209951,3cyclictest28818-21/usr/sbin/munin19:25:132
211209951,3cyclictest25794-21cat23:35:122
211209951,2cyclictest275-21systemd-journal00:35:002
211209950,4cyclictest19565-21sshd21:15:042
211179953,1cyclictest24799-21basename19:15:141
211179953,1cyclictest10883-21diskmemload21:10:121
211179952,2cyclictest9979-21cat23:45:131
211179952,2cyclictest7285-21sh22:45:081
211179952,2cyclictest658-21snmpd20:45:021
211179952,2cyclictest4487-21timerandwakeup19:40:191
211179952,2cyclictest31490-21if_enp4s019:30:131
211179952,2cyclictest3073-21cat20:50:151
211179952,2cyclictest29900-21seq20:40:051
211179952,2cyclictest29148-21grep19:25:141
211179952,2cyclictest26538-21grep19:20:121
211179952,2cyclictest25872-21sh23:55:021
211179952,2cyclictest22034-21head20:20:171
211179952,2cyclictest14453-21cut20:05:131
211179952,2cyclictest10985-21cut00:25:131
211179952,1cyclictest0-21swapper/122:55:221
211179952,1cyclictest0-21swapper/122:30:031
211179952,1cyclictest0-21swapper/100:15:031
211179951,3cyclictest8603-21awk19:50:161
211179951,3cyclictest5069-21hddtemp_smartct20:55:141
211179951,3cyclictest27920-21head00:35:141
211179950,3cyclictest7856-21sh23:05:041
211129952,2cyclictest658-21snmpd19:55:340
211129952,2cyclictest6133-21sh21:25:250
211129952,2cyclictest30717-21ssh22:20:030
211129952,2cyclictest24329-21cut19:15:120
211129952,2cyclictest2401-21cut20:50:110
211129952,2cyclictest23165-21chrt22:35:020
211129952,2cyclictest12771-21cat20:00:140
211129951,3cyclictest275-21systemd-journal21:05:020
211129951,3cyclictest26357-21/usr/sbin/munin20:30:150
211129950,4cyclictest7615-21/usr/sbin/munin19:50:110
211129950,3cyclictest275-21systemd-journal21:02:080
211209940,3cyclictest2968-21apt-config19:40:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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