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2026-01-11 - 20:19
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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 Sun Jan 11, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139272300269,21sleep10-21swapper/107:08:571
137802298268,19sleep20-21swapper/207:07:052
137202272241,21sleep00-21swapper/007:06:180
137812257225,21sleep30-21swapper/307:07:053
276572590,0sleep10-21swapper/110:22:441
314412570,0sleep00-21swapper/012:23:190
281162570,0sleep00-21swapper/009:44:020
86412550,1sleep20-21swapper/212:08:392
302482550,0sleep30-21swapper/312:01:433
132992550,0sleep20-21swapper/210:14:272
269052540,1sleep00-21swapper/011:40:140
12652530,0sleep30-21swapper/311:44:513
314172180,0sleep30-21swapper/312:23:183
236962160,0sleep00-21swapper/011:38:300
182772150,0sleep30-21swapper/311:15:193
266572140,0sleep10-21swapper/109:23:131
49062120,0sleep10-21swapper/112:26:281
49912110,0sleep20-21swapper/209:10:122
6378280,1sleep228-21ksoftirqd/210:29:542
141409987,1cyclictest34-21ksoftirqd/310:00:003
141409984,2cyclictest275-21systemd-journal07:57:283
141369984,3cyclictest275-21systemd-journal11:07:172
141319983,3cyclictest275-21systemd-journal07:50:101
12664280,0sleep30-21swapper/311:12:063
11458280,0sleep30-21swapper/310:32:103
30371270,0sleep20-21swapper/212:22:302
141409976,1cyclictest34-21ksoftirqd/308:45:013
141409974,2cyclictest658-21snmpd09:13:333
141409974,2cyclictest504-21dbus-daemon08:30:003
141409974,2cyclictest501-21in:imuxsock12:40:013
141409974,2cyclictest275-21systemd-journal08:24:023
141409974,2cyclictest21110-21cron09:40:013
141409973,3cyclictest275-21systemd-journal10:29:373
141409972,3cyclictest275-21systemd-journal11:01:023
141409972,2cyclictest31507-21expr09:45:223
141369973,3cyclictest504-21dbus-daemon09:55:002
141369973,3cyclictest25058-21ntpq10:40:182
141369973,3cyclictest14715-21ssh10:34:412
141319974,2cyclictest17389-21cron11:35:001
141319973,3cyclictest658-21snmpd08:48:571
141319970,4cyclictest275-21systemd-journal11:10:011
141289975,1cyclictest32146-21systemctl07:45:190
141289973,3cyclictest275-21systemd-journal11:20:000
141289973,2cyclictest275-21systemd-journal09:19:270
141289973,1cyclictest0-21swapper/009:35:570
141289971,5cyclictest8606-21/usr/sbin/munin11:10:170
14025270,0sleep10-21swapper/110:34:081
12703270,0sleep10-21swapper/111:50:561
4432260,0sleep20-21swapper/210:08:592
28419260,0sleep30-21swapper/311:21:273
28419260,0sleep30-21swapper/311:21:273
141409966,0cyclictest0-21swapper/311:26:283
141409964,1cyclictest21007-21users07:20:203
141409963,2cyclictest658-21snmpd07:46:493
141409963,2cyclictest6547-21cat10:10:123
141409963,2cyclictest32680-21ssh11:05:083
141409963,2cyclictest30430-21cron07:45:003
141409963,2cyclictest28539-21ntp_states08:50:183
141409963,2cyclictest26315-21sh10:02:113
141409963,2cyclictest2584-21ssh10:07:313
141409963,2cyclictest25009-21ssh10:20:403
141409963,2cyclictest22907-21ssh12:18:063
141409963,2cyclictest17689-21chrt10:35:363
141409963,2cyclictest15130-21ssh12:12:143
141409963,2cyclictest11951-21apt08:15:123
141409963,1cyclictest141rcu_preempt09:25:093
141409962,3cyclictest8028-21cat10:50:133
141409962,3cyclictest658-21snmpd10:57:463
141409962,3cyclictest658-21snmpd10:49:593
141409962,3cyclictest658-21snmpd09:24:003
141409962,3cyclictest658-21snmpd08:57:033
141409962,3cyclictest658-21snmpd08:46:163
141409962,3cyclictest658-21snmpd08:14:383
141409962,3cyclictest658-21snmpd07:50:443
141409962,3cyclictest658-21snmpd07:36:313
141409962,3cyclictest658-21snmpd07:11:133
141409962,3cyclictest5523-21expr09:30:123
141409962,3cyclictest2493-21fw_packets11:45:133
141409962,3cyclictest21164-21expr08:35:133
141409962,3cyclictest14850-21cat10:15:133
141409962,3cyclictest13677-21cat09:15:153
141409962,3cyclictest10152-21fw_packets11:30:123
141409962,1cyclictest0-21swapper/311:36:353
141409960,5cyclictest5692-21/usr/sbin/munin09:50:173
141409960,1cyclictest2648-21missed_timers12:25:173
141369966,0cyclictest0-21swapper/212:26:252
141369963,2cyclictest8344-21ssh11:29:392
141369963,2cyclictest658-21snmpd10:46:062
141369963,2cyclictest31320-21switchtime09:45:202
141369963,2cyclictest28807-21taskset12:00:362
141369963,2cyclictest275-21systemd-journal11:46:452
141369963,2cyclictest26313-21ssh10:02:112
141369963,2cyclictest24556-21ssh10:20:212
141369963,2cyclictest21874-21sh10:19:402
141369963,2cyclictest21705-21cron10:00:002
141369963,2cyclictest21284-21ssh11:56:112
141369963,2cyclictest21040-21taskset07:20:342
141369963,2cyclictest17360-21ssh11:54:342
141369963,2cyclictest16921-21grep10:55:142
141369963,2cyclictest11518-21ssh11:11:122
141369962,3cyclictest658-21snmpd12:30:282
141369962,3cyclictest658-21snmpd12:11:472
141369962,3cyclictest658-21snmpd11:16:222
141369962,3cyclictest658-21snmpd09:15:032
141369962,3cyclictest658-21snmpd09:07:002
141369962,3cyclictest658-21snmpd08:53:032
141369962,3cyclictest658-21snmpd08:45:322
141369962,3cyclictest658-21snmpd08:05:192
141369962,3cyclictest658-21snmpd07:36:012
141369962,3cyclictest658-21snmpd07:20:002
141369962,3cyclictest577-21uname09:00:172
141369962,3cyclictest504-21dbus-daemon07:30:012
141369962,3cyclictest275-21systemd-journal11:40:012
141369962,3cyclictest25936-21cat11:20:152
141369962,3cyclictest25936-21cat11:20:142
141369962,3cyclictest15701-11brltty11:31:342
141369962,3cyclictest12873-21ntpq08:15:172
141369962,2cyclictest275-21systemd-journal10:35:072
141369962,1cyclictest0-21swapper/212:39:232
141369960,0cyclictest0-21swapper/211:00:172
141319966,0cyclictest0-21swapper/112:01:141
141319966,0cyclictest0-21swapper/111:57:161
141319963,2cyclictest8734-21sh09:31:411
141319963,2cyclictest663-21runrttasks11:01:141
141319963,2cyclictest658-21snmpd11:27:261
141319963,2cyclictest658-21snmpd10:06:391
141319963,2cyclictest658-21snmpd09:14:401
141319963,2cyclictest4992-21cron08:00:001
141319963,2cyclictest3085-21cut11:45:161
141319963,2cyclictest22613-21tr09:40:151
141319963,2cyclictest22390-21ssh11:18:141
141319963,2cyclictest22369-21sh12:37:101
141319963,2cyclictest13906-21sh11:13:051
141319963,2cyclictest13002-21ssh10:14:151
141319963,2cyclictest10711-21sh10:51:041
141319963,1cyclictest0-21swapper/110:18:321
141319963,1cyclictest0-21swapper/109:27:291
141319962,3cyclictest8842-21sh12:08:491
141319962,3cyclictest658-21snmpd11:21:351
141319962,3cyclictest658-21snmpd11:21:351
141319962,3cyclictest658-21snmpd10:44:391
141319962,3cyclictest658-21snmpd10:36:271
141319962,3cyclictest658-21snmpd10:27:301
141319962,3cyclictest658-21snmpd10:03:561
141319962,3cyclictest658-21snmpd09:47:081
141319962,3cyclictest658-21snmpd08:55:121
141319962,3cyclictest658-21snmpd08:54:571
141319962,3cyclictest658-21snmpd08:27:151
141319962,3cyclictest658-21snmpd08:04:311
141319962,3cyclictest658-21snmpd07:16:451
141319962,3cyclictest275-21systemd-journal11:40:431
141319962,3cyclictest275-21systemd-journal10:45:091
141319962,3cyclictest18662-21apt-get08:30:131
141319962,3cyclictest11543-21sed12:30:191
141319962,1cyclictest0-21swapper/112:10:161
141319961,3cyclictest16337-21awk07:15:011
141319960,6cyclictest0-21swapper/109:18:441
141319960,5cyclictest28210-21dump-pmu-power07:40:021
141319960,5cyclictest25348-21munin-run12:20:011
141289963,2cyclictest9576-21ssh09:12:500
141289963,2cyclictest658-21snmpd10:51:430
141289963,2cyclictest6295-21ssh12:27:340
141289963,2cyclictest5808-21rm12:06:290
141289963,2cyclictest504-21dbus-daemon08:37:270
141289963,2cyclictest501-21in:imuxsock10:15:060
141289963,2cyclictest501-21in:imuxsock08:56:270
141289963,2cyclictest29547-21ssh12:01:120
141289963,2cyclictest29174-21kernelversion07:40:160
141289963,2cyclictest25629-21entropy11:20:120
141289963,2cyclictest25629-21entropy11:20:120
141289963,2cyclictest22824-21apt10:20:110
141289963,2cyclictest17181-21memory10:55:160
141289963,2cyclictest16464-21ssh12:34:010
141289963,2cyclictest16256-21ssh09:55:470
141289963,2cyclictest1564-21users10:45:220
141289963,1cyclictest0-21swapper/011:26:060
141289962,3cyclictest7066-21gdbus10:30:010
141289962,3cyclictest658-21snmpd11:56:000
141289962,3cyclictest658-21snmpd11:50:150
141289962,3cyclictest658-21snmpd11:46:050
141289962,3cyclictest658-21snmpd11:08:170
141289962,3cyclictest658-21snmpd11:00:050
141289962,3cyclictest658-21snmpd10:35:360
141289962,3cyclictest658-21snmpd10:26:330
141289962,3cyclictest658-21snmpd10:09:430
141289962,3cyclictest658-21snmpd09:45:530
141289962,3cyclictest658-21snmpd09:05:130
141289962,3cyclictest658-21snmpd09:02:220
141289962,3cyclictest658-21snmpd08:31:440
141289962,3cyclictest658-21snmpd08:21:030
141289962,3cyclictest658-21snmpd08:15:180
141289962,3cyclictest5937-21cat08:00:150
141289962,3cyclictest30167-21cat09:25:130
141289962,3cyclictest21614-21ls09:20:130
141289962,3cyclictest17071-21sshd12:13:460
141289962,2cyclictest275-21systemd-journal08:49:220
141289962,2cyclictest275-21systemd-journal08:25:000
141289962,1cyclictest141rcu_preempt10:00:150
141289962,1cyclictest0-21swapper/010:40:140
141289962,1cyclictest0-21swapper/009:54:000
141289961,3cyclictest2786-21perf07:55:000
141289960,5cyclictest3991-21ntp_states07:55:170
141409954,1cyclictest34-21ksoftirqd/307:15:023
141409953,1cyclictest8083-21expr08:05:143
141409952,2cyclictest32020-21seq09:00:053
141409952,2cyclictest2980-21cat12:05:113
141409952,2cyclictest24144-21expr07:30:133
141409952,2cyclictest18203-21ssh11:55:013
141409951,3cyclictest658-21snmpd08:00:023
141409951,3cyclictest2537-21/usr/sbin/munin09:05:153
141409951,3cyclictest24618-21hddtemp_smartct10:40:153
141409951,3cyclictest22309-21cat09:40:153
141409951,3cyclictest21975-21expr07:25:133
141409951,3cyclictest18858-21cat08:30:123
141409951,3cyclictest10164-21expr12:30:123
141409951,3cyclictest10013-21ssh11:50:043
141369953,1cyclictest663-21runrttasks07:49:442
141369953,1cyclictest3482-21fschecks_time07:55:152
141369952,2cyclictest6820-21grep08:00:222
141369952,2cyclictest658-21snmpd08:10:042
141369952,2cyclictest5730-21grep09:30:142
141369952,2cyclictest29328-21ssh09:25:072
141369952,2cyclictest28805-21expr07:40:142
141369952,2cyclictest26145-21sh11:40:112
141369952,2cyclictest24225-21expr07:30:132
141369952,2cyclictest23709-21grep08:40:132
141369952,2cyclictest21814-21cat09:40:122
141369952,2cyclictest16860-21tune2fs08:25:152
141369952,2cyclictest15967-21taskset08:22:452
141369952,2cyclictest15026-21cat07:10:192
141369952,2cyclictest14177-21cat09:35:152
141369952,1cyclictest0-21swapper/212:15:012
141369951,3cyclictest8190-21tr10:50:132
141369951,3cyclictest782-21/usr/sbin/munin07:50:192
141369951,3cyclictest30481-21cat08:55:142
141369951,3cyclictest21078-21expr08:35:142
141369950,4cyclictest21114-21ssh09:20:082
141369950,3cyclictest275-21systemd-journal08:31:582
141319952,3cyclictest21561-21cat08:35:151
141319952,2cyclictest9873-21grep08:10:121
141319952,2cyclictest658-21snmpd09:55:111
141319952,2cyclictest658-21snmpd09:05:301
141319952,2cyclictest658-21snmpd09:01:151
141319952,2cyclictest658-21snmpd07:21:361
141319952,2cyclictest6482-21cat09:50:151
141319952,2cyclictest22-21ksoftirqd/108:41:071
141319952,2cyclictest17232-21cat10:55:161
141319952,2cyclictest14330-21expr08:20:131
141319952,2cyclictest13332-21ssh09:35:061
141319952,2cyclictest13088-21wc08:15:201
141319951,3cyclictest8581-21cut08:05:181
141319951,3cyclictest28848-21df07:40:141
141319951,3cyclictest24561-21cat07:30:151
141319951,3cyclictest22322-21cat07:25:161
141319951,3cyclictest18183-21expr11:35:121
141319950,4cyclictest26847-21ntp_states12:20:141
141289953,1cyclictest9524-21sh11:30:070
141289953,1cyclictest15289-21tr07:10:200
141289953,1cyclictest10163-21cut08:10:140
141289952,2cyclictest658-21snmpd09:30:040
141289952,2cyclictest658-21snmpd07:39:440
141289952,2cyclictest658-21snmpd07:20:490
141289952,2cyclictest27958-21expr08:50:120
141289952,2cyclictest19526-21ssh12:15:280
141289951,3cyclictest6189-21sh10:10:090
141289951,3cyclictest24134-21expr07:30:140
141289951,3cyclictest23237-21cat08:40:120
141289951,3cyclictest18630-21cstates12:35:120
141289951,3cyclictest16314-21cron07:15:010
141289950,4cyclictest7882-21df08:05:130
141319940,3cyclictest30800-21cat07:45:001
141289940,3cyclictest21688-21grep07:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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