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2025-11-18 - 02:08
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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 Mon Nov 17, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38032305273,20sleep10-21swapper/107:09:181
35112276210,20sleep00-21swapper/007:05:310
37072267234,20sleep30-21swapper/307:08:033
36912259224,22sleep20-21swapper/207:07:502
118332660,1sleep00-21swapper/011:30:560
48672610,0sleep20-21swapper/212:12:062
44222600,0sleep30-21swapper/310:09:143
185452580,0sleep20-21swapper/211:11:162
185452580,0sleep20-21swapper/211:11:162
290752550,0sleep30-21swapper/309:36:223
135112450,0sleep20-21swapper/211:07:552
68922200,1sleep06887-21ssh10:35:220
46932190,1sleep24694-21grep11:50:162
70292180,0sleep30-21swapper/312:33:293
135632180,0sleep00-21swapper/009:25:130
283782170,0sleep10-21swapper/110:01:311
308672150,1sleep30-21swapper/312:08:273
288662150,0sleep20-21swapper/212:06:412
163592150,0sleep00-21swapper/012:19:410
48072140,0sleep30-21swapper/309:18:003
60742130,0sleep20-21swapper/210:10:172
249062130,0sleep20-21swapper/209:59:322
397999105,3cyclictest19982-21systemd-journal09:07:233
39799992,4cyclictest19982-21systemd-journal07:45:213
39779994,3cyclictest19982-21systemd-journal12:36:372
39779993,3cyclictest16806-21readlink12:20:002
39689994,3cyclictest19982-21systemd-journal12:36:250
39689994,3cyclictest19982-21systemd-journal12:33:550
39689992,4cyclictest11545-21cron10:15:010
16930290,0sleep20-21swapper/210:45:172
39799985,2cyclictest11736-21in:imuxsock08:24:503
39799983,3cyclictest19982-21systemd-journal08:13:103
39799982,1cyclictest141rcu_preempt08:51:073
39799980,1cyclictest141rcu_preempt11:05:023
39779984,3cyclictest508-21dbus-daemon10:59:382
39779983,3cyclictest19982-21systemd-journal07:32:412
39779983,3cyclictest19982-21systemd-journal07:15:022
39729985,2cyclictest28129-21ssh09:35:271
39729984,3cyclictest19982-21systemd-journal08:23:351
39729983,3cyclictest19982-21systemd-journal12:25:341
39729983,3cyclictest19982-21systemd-journal11:40:311
39729983,3cyclictest19982-21systemd-journal10:25:011
39729980,2cyclictest7661-21lldpd11:10:121
39729980,2cyclictest7661-21lldpd11:10:121
39689985,2cyclictest502-21systemd-logind11:50:310
39689983,3cyclictest19982-21systemd-journal10:19:350
23321280,0sleep20-21swapper/209:32:082
39799974,2cyclictest508-21dbus-daemon09:52:533
39799973,3cyclictest508-21dbus-daemon12:36:253
39799973,3cyclictest508-21dbus-daemon11:10:043
39799973,3cyclictest508-21dbus-daemon11:10:043
39799973,3cyclictest3429-21sshd08:15:403
39799973,3cyclictest30654-21snmpd09:46:543
39799973,3cyclictest20098-21sshd07:42:383
39799973,3cyclictest0-21swapper/310:33:593
39799973,2cyclictest19982-21systemd-journal11:42:113
39799973,1cyclictest0-21swapper/312:19:453
39799972,3cyclictest19982-21systemd-journal09:29:303
39779974,2cyclictest3237-21cut11:00:172
39779974,2cyclictest19982-21systemd-journal08:25:152
39779974,2cyclictest17978-21cron12:00:002
39779974,2cyclictest11736-21in:imuxsock09:11:092
39779973,3cyclictest508-21dbus-daemon09:49:582
39779973,3cyclictest30654-21snmpd07:28:432
39779973,3cyclictest19982-21systemd-journal11:23:252
39779973,3cyclictest19982-21systemd-journal08:00:232
39779973,3cyclictest11736-21in:imuxsock10:30:262
39779973,3cyclictest0-21swapper/211:25:052
39779973,1cyclictest0-21swapper/212:03:172
39779972,3cyclictest502-21systemd-logind11:17:592
39779971,5cyclictest0-21swapper/212:30:182
39779970,4cyclictest20299-21idleruntime-cro07:45:002
39729975,1cyclictest0-21swapper/112:23:001
39729974,2cyclictest508-21dbus-daemon08:19:001
39729974,2cyclictest11736-21in:imuxsock07:20:111
39729973,3cyclictest508-21dbus-daemon07:19:461
39729973,3cyclictest30654-21snmpd11:47:511
39729973,3cyclictest30654-21snmpd09:29:281
39729973,3cyclictest30654-21snmpd08:02:141
39729973,3cyclictest19982-21systemd-journal11:36:201
39729973,3cyclictest19982-21systemd-journal11:06:191
39729973,3cyclictest19982-21systemd-journal09:50:571
39729973,3cyclictest0-21swapper/111:56:271
39729973,3cyclictest0-21swapper/110:13:371
39729973,1cyclictest0-21swapper/110:48:351
39729972,3cyclictest19982-21systemd-journal12:20:001
39729972,3cyclictest19982-21systemd-journal10:41:161
39689974,2cyclictest508-21dbus-daemon11:40:310
39689974,2cyclictest508-21dbus-daemon08:40:000
39689974,2cyclictest19982-21systemd-journal09:47:520
39689974,2cyclictest11736-21in:imuxsock08:32:210
39689974,2cyclictest11736-21in:imuxsock08:15:000
39689973,3cyclictest30654-21snmpd07:50:040
39689973,3cyclictest1159-21grep09:15:150
39689973,3cyclictest0-21swapper/012:14:230
39689973,3cyclictest0-21swapper/011:10:130
39689973,3cyclictest0-21swapper/011:10:130
39689973,3cyclictest0-21swapper/009:55:360
39689973,1cyclictest0-21swapper/011:02:070
39689972,3cyclictest19982-21systemd-journal11:08:480
39689972,3cyclictest19982-21systemd-journal09:44:560
39689972,3cyclictest19982-21systemd-journal09:00:430
32166270,0sleep30-21swapper/311:21:583
39799966,0cyclictest0-21swapper/311:35:203
39799966,0cyclictest0-21swapper/310:45:253
39799963,2cyclictest4067-21apt-get11:50:133
39799963,2cyclictest31179-21sh11:45:413
39799963,2cyclictest30654-21snmpd12:20:393
39799963,2cyclictest30654-21snmpd11:57:153
39799963,2cyclictest26210-21fschecks_time10:00:183
39799963,2cyclictest25394-21cat10:25:183
39799963,2cyclictest24401-21sh11:15:403
39799963,2cyclictest22474-21fw_packets09:00:173
39799963,2cyclictest11271-21expr10:40:143
39799962,3cyclictest6712-21diskstats08:25:153
39799962,3cyclictest30654-21snmpd10:55:493
39799962,3cyclictest30654-21snmpd10:10:093
39799962,3cyclictest30654-21snmpd07:56:203
39799962,3cyclictest30654-21snmpd07:22:253
39799962,3cyclictest20428-21cat09:55:193
39799962,3cyclictest19982-21systemd-journal08:57:373
39799962,3cyclictest19223-21cat12:00:163
39799962,3cyclictest18487-21expr10:20:143
39799962,3cyclictest14710-21seq08:41:293
39799962,3cyclictest12634-21cat10:15:193
39799962,3cyclictest1-21systemd08:00:143
39799962,3cyclictest11405-21basename08:35:153
39799962,3cyclictest0-21swapper/309:30:303
39799962,1cyclictest0-21swapper/312:25:263
39799962,1cyclictest0-21swapper/312:10:123
39799962,1cyclictest0-21swapper/310:35:343
39799961,4cyclictest7805-21ls09:20:183
39799961,4cyclictest26646-21apt-get09:10:133
39799961,3cyclictest19982-21systemd-journal11:31:263
39799961,3cyclictest19982-21systemd-journal11:25:053
39799961,3cyclictest19982-21systemd-journal07:35:103
39799961,3cyclictest19982-21systemd-journal07:30:103
39799961,3cyclictest19982-21systemd-journal07:25:253
39799960,6cyclictest0-21swapper/309:40:213
39799960,5cyclictest23718-21ntpq07:50:183
39799960,5cyclictest22305-21ssh10:50:023
39799960,3cyclictest2517-21sh11:00:093
39779963,2cyclictest8941-21sh09:20:342
39779963,2cyclictest508-21dbus-daemon08:20:062
39779963,2cyclictest30654-21snmpd08:39:002
39779963,2cyclictest27496-21sh12:25:352
39779963,2cyclictest25968-21taskset09:07:362
39779963,2cyclictest25567-21ssh11:41:372
39779963,2cyclictest22682-21ssh10:23:262
39779963,2cyclictest20853-21seq07:45:152
39779963,2cyclictest17731-21ssh11:35:332
39779963,2cyclictest10116-21grep11:30:162
39779962,3cyclictest9525-21expr07:20:142
39779962,3cyclictest508-21dbus-daemon09:35:202
39779962,3cyclictest30654-21snmpd10:25:132
39779962,3cyclictest30654-21snmpd08:10:262
39779962,3cyclictest30654-21snmpd08:09:382
39779962,3cyclictest30654-21snmpd07:55:022
39779962,3cyclictest30654-21snmpd07:35:072
39779962,3cyclictest30654-21snmpd07:13:072
39779962,3cyclictest29741-11brltty08:51:322
39779962,3cyclictest21324-21sshd08:55:452
39779962,3cyclictest16181-21ntpq08:45:182
39779962,3cyclictest14274-21sed08:40:192
39779962,3cyclictest12229-21sensors10:40:192
39779962,3cyclictest12196-21expr10:15:172
39779962,3cyclictest10154-21sshd08:30:412
39779962,3cyclictest0-21swapper/210:36:492
39779962,3cyclictest0-21swapper/209:40:412
39779962,2cyclictest19982-21systemd-journal12:21:312
39779962,1cyclictest0-21swapper/210:00:282
39779962,1cyclictest0-21swapper/209:50:062
39779961,2cyclictest15459-21ssh09:25:442
39779960,4cyclictest19982-21systemd-journal11:45:562
39779960,3cyclictest25102-21sshd10:51:202
39729964,1cyclictest18768-21hddtemp_smartct10:20:161
39729963,2cyclictest6455-21systemctl10:35:201
39729963,2cyclictest3616-21ssh10:08:211
39729963,2cyclictest31484-21expr10:30:141
39729963,2cyclictest3075-21sh12:10:431
39729963,2cyclictest30654-21snmpd09:08:071
39729963,2cyclictest2737-21cpuspeed_turbos11:00:151
39729963,2cyclictest27189-21gltestperf09:10:151
39729963,2cyclictest23689-21sshd07:50:181
39729963,2cyclictest22-21ksoftirqd/108:51:071
39729963,2cyclictest21792-21ssh09:30:301
39729963,2cyclictest15916-21cat08:45:171
39729963,2cyclictest13197-21tr08:40:131
39729963,2cyclictest1231-21sh12:30:121
39729962,3cyclictest7455-21expr09:20:161
39729962,3cyclictest30654-21snmpd08:07:441
39729962,3cyclictest29428-21cat10:55:191
39729962,3cyclictest22917-21cat09:00:201
39729962,3cyclictest21218-21if_enp4s007:45:171
39729962,3cyclictest0-21swapper/109:57:121
39729962,3cyclictest0-21swapper/109:40:491
39729962,1cyclictest0-21swapper/112:35:361
39729962,1cyclictest0-21swapper/112:05:021
39729962,1cyclictest0-21swapper/111:32:561
39729962,1cyclictest0-21swapper/111:25:031
39729962,1cyclictest0-21swapper/111:20:491
39729962,1cyclictest0-21swapper/111:15:461
39729962,1cyclictest0-21swapper/110:17:061
39729962,1cyclictest0-21swapper/109:45:021
39729960,5cyclictest18646-21cpuspeed_turbos12:00:141
39729960,3cyclictest5883-21taskset11:50:301
39729960,3cyclictest20306-21dump-pmu-power07:45:001
39729960,2cyclictest2151-21sed09:15:211
39729960,2cyclictest10760-21/usr/sbin/munin08:35:141
39729960,0cyclictest0-21swapper/110:54:581
39689964,1cyclictest14458-21irqstats07:30:170
39689963,2cyclictest27420-21sh12:25:310
39689963,2cyclictest24577-21ssh11:15:510
39689963,2cyclictest19616-21cat07:40:230
39689963,2cyclictest17066-21cat10:45:180
39689963,2cyclictest16639-21taskset07:35:160
39689963,2cyclictest16083-21rm11:58:120
39689963,2cyclictest15245-21acpi08:45:140
39689963,2cyclictest0-21swapper/010:40:320
39689963,2cyclictest0-21swapper/010:31:160
39689963,1cyclictest0-21swapper/008:05:140
39689962,3cyclictest7661-21lldpd10:55:420
39689962,3cyclictest7607-21tune2fs09:20:170
39689962,3cyclictest30654-21snmpd11:23:170
39689962,3cyclictest30654-21snmpd10:21:490
39689962,3cyclictest30654-21snmpd09:37:160
39689962,3cyclictest30654-21snmpd08:52:120
39689962,3cyclictest30654-21snmpd07:20:340
39689962,3cyclictest30654-21snmpd07:10:520
39689962,3cyclictest27308-21sed09:10:160
39689962,3cyclictest24867-21cat09:05:170
39689962,3cyclictest20085-21ls09:30:130
39689962,3cyclictest19982-21systemd-journal07:55:250
39689962,3cyclictest19982-21systemd-journal07:16:370
39689962,3cyclictest0-21swapper/011:46:200
39689962,3cyclictest0-21swapper/011:25:360
39689962,3cyclictest0-21swapper/010:25:100
39689962,3cyclictest0-21swapper/010:07:550
39689962,1cyclictest0-21swapper/012:20:130
39689962,1cyclictest0-21swapper/012:06:360
39689962,1cyclictest0-21swapper/011:36:040
39689962,1cyclictest0-21swapper/009:54:390
39689961,3cyclictest19982-21systemd-journal12:03:530
39689961,3cyclictest19982-21systemd-journal10:01:390
39689961,3cyclictest19982-21systemd-journal08:20:150
39689961,3cyclictest19982-21systemd-journal08:00:140
39689960,3cyclictest23716-21rm10:50:210
17043260,1sleep10-21swapper/107:35:191
39799952,2cyclictest6645-21sendmail_mailst07:15:023
39799952,2cyclictest29457-21chrt08:05:043
39799952,2cyclictest15547-21cat08:45:153
39799950,4cyclictest8794-21cstates08:30:133
39799950,3cyclictest19982-21systemd-journal07:10:133
39779952,2cyclictest949-21expr09:15:142
39779952,2cyclictest742-21tr10:05:222
39779952,2cyclictest21972-21apt-get09:00:152
39779951,3cyclictest20734-21cups-browsed08:15:012
39779950,3cyclictest19982-21systemd-journal07:50:132
39729953,1cyclictest668-21runrttasks07:25:161
39729952,2cyclictest8604-21grep08:30:141
39729952,2cyclictest6328-21dpkg08:25:131
39729952,2cyclictest30654-21snmpd08:55:061
39729952,2cyclictest30654-21snmpd07:10:101
39729952,2cyclictest25546-21head07:55:171
39729952,2cyclictest14055-21expr07:30:151
39729950,2cyclictest32004-21cat08:10:141
39689953,1cyclictest19823-21cpuspeed_turbos08:55:130
39689953,1cyclictest19116-21gdbus08:15:010
39689952,2cyclictest30654-21snmpd07:25:100
39689952,2cyclictest13484-21grep08:40:140
39689950,4cyclictest6326-21apt-get08:25:140
20855250,0sleep012-21ksoftirqd/007:45:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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