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2026-07-09 - 08:02
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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 Jul 09, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
240672318290,19sleep20-21swapper/219:06:062
2371622900,5sleep30-21swapper/319:05:223
240562280249,20sleep10-21swapper/119:05:571
240502267237,20sleep00-21swapper/019:05:520
142582600,0sleep20-21swapper/200:24:392
274712590,0sleep20-21swapper/222:55:022
166482590,0sleep30-21swapper/322:29:453
278192580,0sleep20-21swapper/221:17:222
132782580,0sleep30-21swapper/322:07:263
4802570,0sleep00-21swapper/023:56:030
107842570,0sleep10-21swapper/100:21:581
162212520,0sleep10-21swapper/122:48:251
225472190,0sleep20-21swapper/222:32:402
23602180,0sleep30-21swapper/323:37:563
206542180,0sleep10-21swapper/100:28:151
309612170,0sleep20-21swapper/222:37:452
138672170,0sleep10-21swapper/123:25:121
10022170,0sleep00-21swapper/022:58:250
7062160,0sleep10-21swapper/100:15:341
222772160,0sleep30-21swapper/323:10:253
285162150,0sleep00-21swapper/022:16:320
176062150,0sleep20-21swapper/200:25:522
2449799142,9cyclictest24845-21sh00:10:312
234592140,0sleep30-21swapper/323:30:353
2449799133,8cyclictest5954-40gzip00:00:002
2449799130,2cyclictest4714-21sh23:59:202
2449799130,1cyclictest310152chrt20:34:072
2449799121,1cyclictest13157-21apt-get23:25:092
2449799121,0cyclictest24372-21apt-get20:20:112
2449799120,2cyclictest7532-21ssh22:23:592
2449799120,2cyclictest13997-21cat21:05:182
2449799120,2cyclictest1234-21ssh00:15:582
2449799120,1cyclictest18830-21apt-get22:50:022
210462120,0sleep00-21swapper/023:49:380
2449799111,3cyclictest491-21systemd-logind19:31:202
2449799111,1cyclictest10311-21apt-get22:45:022
2449799110,3cyclictest24043-21chrt20:19:342
2449799110,3cyclictest12667-21idleruntime-cro19:55:002
2449799110,2cyclictest4353-21kernelversion23:00:152
2449799110,2cyclictest26919-21df_inode19:15:002
2449799110,2cyclictest22079-21ssh00:09:472
2449799110,2cyclictest15382-21ssh23:45:202
2449799110,2cyclictest15071-21ssh22:28:312
2449799110,1cyclictest275-21systemd-journal21:11:152
2449799110,1cyclictest0-21swapper/223:10:112
2449799110,1cyclictest0-21swapper/221:41:592
270322100,0sleep20-21swapper/223:52:522
2449799102,1cyclictest0-21swapper/222:03:172
2449799101,1cyclictest28847-21apt-get23:15:022
2449799101,1cyclictest15745-21ssh23:06:442
2449799101,1cyclictest15745-21ssh23:06:432
2449799101,1cyclictest0-21swapper/221:25:102
2449799100,3cyclictest28205-21ssh23:34:132
2449799100,3cyclictest275-21systemd-journal21:58:162
2449799100,3cyclictest26289-21pluginstate22:15:162
2449799100,3cyclictest13660-21ssh22:07:442
2449799100,2cyclictest9976-21chrt23:22:532
2449799100,2cyclictest8228-21apt19:45:002
2449799100,2cyclictest8190-21ssh21:45:092
2449799100,2cyclictest5052-21ls23:40:002
2449799100,2cyclictest3157-21idleruntime-cro20:45:002
2449799100,2cyclictest31468-21chrt19:21:362
2449799100,2cyclictest26666-21munin-run19:15:012
2449799100,2cyclictest17577-21ntpq21:50:172
2449799100,2cyclictest17204-21ssh21:30:192
2449799100,1cyclictest4096-21ssh22:40:382
2449799100,1cyclictest31714-21apt-get21:20:122
2449799100,1cyclictest29254-21ssh21:37:552
2449799100,1cyclictest275-21systemd-journal20:00:002
2449799100,1cyclictest11078-21irqstats21:00:152
2449799100,1cyclictest0-21swapper/220:50:112
2449799100,1cyclictest0-21swapper/200:38:272
2449799100,1cyclictest0-21swapper/200:30:272
2448899102,4cyclictest21870-21sh20:15:000
2448899100,3cyclictest11285-21ssh22:05:530
244979991,2cyclictest8542-21cpuspeed19:45:102
244979991,2cyclictest5698-21/usr/sbin/munin23:40:132
244979991,1cyclictest27873-21sh20:25:172
244979990,3cyclictest7950-21cat20:55:122
244979990,3cyclictest18116-21cut20:05:142
244979990,3cyclictest17483-21diskstats22:10:132
244979990,2cyclictest5376-21munin-plugin-st20:50:002
244979990,2cyclictest4981-21ntp_states19:35:142
244979990,2cyclictest32587-21grep20:35:182
244979990,2cyclictest15877-21cut20:00:162
244979990,1cyclictest511-21ntp_states19:25:162
244979990,1cyclictest275-21systemd-journal20:15:002
244889994,2cyclictest18559-21kworker/0:100:25:120
18249290,1sleep018250-21tail20:05:140
244999984,3cyclictest504-21dbus-daemon22:20:013
244999984,3cyclictest275-21systemd-journal21:19:153
244929986,1cyclictest22-21ksoftirqd/120:40:001
244929985,2cyclictest658-21snmpd21:53:151
244889987,1cyclictest12-21ksoftirqd/021:30:010
244889987,1cyclictest12-21ksoftirqd/000:20:000
244889983,1cyclictest12-21ksoftirqd/000:30:100
244999976,1cyclictest0-21swapper/300:20:413
244999973,3cyclictest504-21dbus-daemon23:08:533
244999973,3cyclictest504-21dbus-daemon23:08:533
244999973,3cyclictest275-21systemd-journal20:55:003
244999973,2cyclictest275-21systemd-journal20:44:553
244999971,3cyclictest5059-21rm21:23:263
244929975,1cyclictest4055-21ssh23:58:471
244929974,3cyclictest658-21snmpd21:39:221
244929973,3cyclictest658-21snmpd20:51:151
244929970,7cyclictest0-21swapper/123:44:571
244929970,1cyclictest12270-21ssh21:47:041
244889976,1cyclictest12-21ksoftirqd/023:30:000
244889976,1cyclictest12-21ksoftirqd/023:05:010
244889976,1cyclictest12-21ksoftirqd/023:05:010
244889976,1cyclictest12-21ksoftirqd/019:45:000
244889975,1cyclictest12-21ksoftirqd/021:55:010
244889974,2cyclictest658-21snmpd21:33:430
244889973,3cyclictest275-21systemd-journal22:45:010
244889973,3cyclictest275-21systemd-journal00:05:000
244889971,4cyclictest26664-21turbostat19:15:010
244889971,3cyclictest3782-21munin-run19:35:010
244889971,3cyclictest12678-21munin-run19:55:000
244889970,4cyclictest22922-21munin-plugin-st21:15:010
244999963,2cyclictest658-21snmpd23:17:023
244999963,2cyclictest34-21ksoftirqd/323:40:143
244999963,2cyclictest34-21ksoftirqd/320:00:193
244999963,2cyclictest32168-21rm23:55:273
244999963,2cyclictest31519-21sshd19:22:163
244999963,2cyclictest29607-21latency_hist19:20:013
244999963,2cyclictest28953-21sh22:36:133
244999963,2cyclictest27759-21cpu22:55:133
244999963,2cyclictest275-21systemd-journal23:46:493
244999963,2cyclictest24446-21rm22:53:063
244999963,2cyclictest20280-21df20:10:133
244999963,2cyclictest15419-21cat00:25:133
244999963,2cyclictest11880-21rm22:45:183
244999963,2cyclictest0-21swapper/300:02:433
244999962,3cyclictest658-21snmpd22:41:163
244999962,3cyclictest658-21snmpd21:41:283
244999962,3cyclictest658-21snmpd21:11:313
244999962,3cyclictest658-21snmpd20:30:293
244999962,3cyclictest658-21snmpd19:31:013
244999962,3cyclictest658-21snmpd19:12:423
244999962,3cyclictest658-21snmpd00:12:363
244999962,3cyclictest465-21ntpq19:25:143
244999962,3cyclictest31618-21cat20:35:123
244999962,3cyclictest25209-21fschecks_count21:55:133
244999962,3cyclictest16302-21awk21:30:143
244999962,3cyclictest1-21systemd00:15:173
244999962,3cyclictest10211-21seq19:47:093
244999962,1cyclictest0-21swapper/323:01:233
244999962,1cyclictest0-21swapper/322:20:443
244999961,4cyclictest0-21swapper/321:25:153
244999961,3cyclictest275-21systemd-journal22:11:163
244999960,6cyclictest0-21swapper/322:00:263
244999960,6cyclictest0-21swapper/321:36:003
244999960,5cyclictest10158-21apt-config21:00:013
244999960,2cyclictest21562ssh00:36:163
244999960,2cyclictest14575-21diskmemload21:10:013
244999960,0cyclictest0-21swapper/323:52:103
244929966,0cyclictest0-21swapper/122:05:141
244929965,1cyclictest26926-21apt-get22:55:021
244929963,2cyclictest8466-21/usr/sbin/munin19:45:181
244929963,2cyclictest7995-21sh22:43:391
244929963,2cyclictest658-21snmpd21:07:311
244929963,2cyclictest658-21snmpd20:56:391
244929963,2cyclictest658-21snmpd19:30:401
244929963,2cyclictest658-21snmpd00:03:511
244929963,2cyclictest504-21dbus-daemon00:11:251
244929963,2cyclictest4991-21cat23:20:121
244929963,2cyclictest491-21systemd-logind19:14:401
244929963,2cyclictest21551-21ssh21:13:581
244929963,2cyclictest20113-21sshd00:08:151
244929963,2cyclictest0-21swapper/121:23:411
244929962,3cyclictest658-21snmpd22:53:491
244929962,3cyclictest658-21snmpd22:35:311
244929962,3cyclictest658-21snmpd22:17:091
244929962,3cyclictest658-21snmpd22:13:151
244929962,3cyclictest658-21snmpd21:56:351
244929962,3cyclictest658-21snmpd21:16:251
244929962,3cyclictest658-21snmpd20:46:511
244929962,3cyclictest658-21snmpd20:27:141
244929962,3cyclictest658-21snmpd20:23:441
244929962,3cyclictest658-21snmpd19:41:281
244929962,3cyclictest658-21snmpd19:39:521
244929962,3cyclictest658-21snmpd19:29:101
244929962,3cyclictest658-21snmpd00:37:401
244929962,3cyclictest504-21dbus-daemon23:50:171
244929962,3cyclictest504-21dbus-daemon21:30:011
244929962,3cyclictest12836-11brltty22:30:521
244929962,3cyclictest11359-21if_enp4s019:50:141
244929962,3cyclictest10611-21ls22:25:191
244929960,6cyclictest0-21swapper/123:49:241
244929960,6cyclictest0-21swapper/123:11:521
244929960,6cyclictest0-21swapper/121:30:201
244929960,6cyclictest0-21swapper/120:10:361
244929960,5cyclictest1067-21diskstats22:00:141
244929960,2cyclictest275-21systemd-journal21:45:011
244929960,2cyclictest17664-21/usr/sbin/munin20:05:121
244929960,0cyclictest0-21swapper/123:16:051
244889965,1cyclictest12-21ksoftirqd/020:45:000
244889964,1cyclictest25263-21strings20:20:160
244889963,2cyclictest658-21snmpd23:02:070
244889963,2cyclictest658-21snmpd21:23:250
244889963,2cyclictest658-21snmpd20:38:240
244889963,2cyclictest517-21sh00:35:170
244889963,2cyclictest504-21dbus-daemon20:55:000
244889963,2cyclictest30181-21sh22:37:090
244889963,2cyclictest275-21systemd-journal20:56:040
244889963,2cyclictest24668-21taskset00:10:230
244889963,2cyclictest23197-21ssh23:11:070
244889963,2cyclictest21195-21ssh22:31:370
244889963,2cyclictest14556-21taskset21:10:000
244889963,2cyclictest10678-21timerandwakeup22:25:190
244889963,1cyclictest0-21swapper/022:40:040
244889962,3cyclictest8412-21cat00:20:200
244889962,3cyclictest658-21snmpd23:54:510
244889962,3cyclictest658-21snmpd23:23:590
244889962,3cyclictest658-21snmpd21:35:070
244889962,3cyclictest658-21snmpd20:03:560
244889962,3cyclictest658-21snmpd19:55:130
244889962,3cyclictest275-21systemd-journal23:37:130
244889962,3cyclictest275-21systemd-journal20:15:320
244889962,3cyclictest11325-21ntpq21:00:160
244889962,3cyclictest0-21swapper/023:15:160
244889962,2cyclictest275-21systemd-journal23:34:440
244889962,2cyclictest25667-1kworker/u9:121:55:480
244889962,2cyclictest25667-1kworker/u9:121:45:580
244889962,1cyclictest131rcuc/022:00:130
244889962,1cyclictest0-21swapper/023:40:490
244889960,6cyclictest0-21swapper/021:42:540
22495260,0sleep30-21swapper/321:53:373
244999953,1cyclictest8679-21missed_timers20:55:163
244999953,1cyclictest4585-21sendmail_mailtr20:45:193
244999953,1cyclictest13129-21cstates19:55:113
244999952,3cyclictest15485-21memory00:05:153
244999952,2cyclictest8565-21expr21:45:133
244999952,2cyclictest658-21snmpd19:50:043
244999952,2cyclictest27987-21cut20:25:173
244999952,2cyclictest22417-21expr20:15:123
244999952,2cyclictest19527-21awk22:30:223
244999952,2cyclictest13158-21dpkg23:25:093
244999951,3cyclictest504-21dbus-daemon23:20:083
244999951,3cyclictest24358-21find20:20:113
244999951,2cyclictest275-21systemd-journal00:30:153
244999950,4cyclictest7233-21ntp_states19:40:183
244999950,3cyclictest275-21systemd-journal20:05:073
244929953,1cyclictest29516-21sh20:30:131
244929952,2cyclictest658-21snmpd00:30:041
244929952,2cyclictest3313-21ssh23:00:011
244929952,2cyclictest30190-21fschecks_count19:20:131
244929952,2cyclictest29940-21expr23:35:121
244929952,2cyclictest27954-21uniq19:15:141
244929952,2cyclictest22492-21ntpq23:30:171
244929952,2cyclictest22235-21cpuspeed_turbos20:15:121
244929952,2cyclictest16144-21cat20:00:171
244929952,2cyclictest1576-21sort22:20:131
244929952,2cyclictest13007-21cat19:55:111
244929952,2cyclictest11329-21ntp_kernel_pll_21:00:171
244929951,3cyclictest12241-21rm23:05:121
244929951,3cyclictest12241-21rm23:05:121
244929951,3cyclictest1169-21/usr/sbin/munin20:40:101
244889952,2cyclictest504-21dbus-daemon00:05:060
244889952,2cyclictest4088-21cat20:45:150
244889952,2cyclictest30146-21expr19:20:120
244889952,2cyclictest27095-21tr20:25:120
244889952,2cyclictest24658-21taskset21:15:180
244889952,2cyclictest16870-21sh22:10:040
244889951,3cyclictest658-21snmpd22:20:060
244889951,3cyclictest658-21snmpd19:35:190
244889951,3cyclictest560-21gdbus20:30:060
244889951,3cyclictest275-21systemd-journal19:25:050
244889951,3cyclictest27084-21munin-node19:15:020
244889950,3cyclictest275-21systemd-journal19:48:010
244889950,1cyclictest19085-21ssh22:50:120
244999940,3cyclictest4017-21/usr/sbin/munin19:35:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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