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2025-06-16 - 15:28
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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 highest latencies:
System rackaslot8.osadl.org (updated Mon Jun 16, 2025 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110042293262,20sleep10-21swapper/107:06:321
93052292229,20sleep00-21swapper/007:05:070
109562268208,19sleep30-21swapper/307:05:543
112592257221,23sleep20-21swapper/207:09:502
127542620,0sleep30-21swapper/310:15:033
182312550,0sleep10-21swapper/109:51:221
171532210,0sleep30-21swapper/307:20:163
275492140,0sleep00-21swapper/011:25:190
231492140,0sleep20-21swapper/209:55:242
231492140,0sleep20-21swapper/209:55:242
272752120,0sleep00-21swapper/011:50:180
1138199108,1cyclictest22-21ksoftirqd/108:20:011
1137799107,2cyclictest11736-21in:imuxsock10:05:000
3630290,0sleep30-21swapper/311:32:233
113889994,3cyclictest19982-21systemd-journal11:56:363
113889994,3cyclictest19982-21systemd-journal11:56:363
113889994,3cyclictest19982-21systemd-journal11:50:463
113889994,3cyclictest19982-21systemd-journal07:16:153
113859994,3cyclictest19982-21systemd-journal08:19:392
113819995,3cyclictest30654-21snmpd10:52:041
31310280,0sleep20-21swapper/210:58:542
19029280,0sleep10-21swapper/111:18:201
113889984,3cyclictest19982-21systemd-journal09:28:043
113889984,2cyclictest19982-21systemd-journal08:30:473
113889983,3cyclictest19982-21systemd-journal10:05:553
113859987,1cyclictest28-21ksoftirqd/207:15:012
113859984,3cyclictest19982-21systemd-journal09:05:002
113859982,3cyclictest18663-21munin-plugin-st07:25:012
113859981,4cyclictest26737-21basename11:50:012
113819985,2cyclictest508-21dbus-daemon09:45:011
113819983,3cyclictest19982-21systemd-journal10:49:011
113819983,3cyclictest19982-21systemd-journal08:20:411
113779986,2cyclictest12-21ksoftirqd/009:45:010
113779986,1cyclictest0-21swapper/009:00:000
113779984,3cyclictest502-21systemd-logind11:40:450
113779983,3cyclictest19982-21systemd-journal08:10:450
113779983,3cyclictest19982-21systemd-journal08:00:360
113779983,3cyclictest19982-21systemd-journal08:00:360
113779983,3cyclictest19982-21systemd-journal07:35:260
6956270,0sleep00-21swapper/010:10:150
113889974,2cyclictest508-21dbus-daemon09:05:003
113889974,2cyclictest34-21ksoftirqd/310:20:393
113889974,2cyclictest30330-21systemctl12:35:213
113889974,2cyclictest19982-21systemd-journal09:10:573
113889974,2cyclictest19842-21sshd07:25:173
113889973,3cyclictest508-21dbus-daemon08:06:183
113889973,3cyclictest30654-21snmpd09:46:173
113889973,3cyclictest0-21swapper/312:32:453
113889973,1cyclictest0-21swapper/312:18:253
113889972,3cyclictest19982-21systemd-journal11:44:053
113889972,3cyclictest19982-21systemd-journal11:37:003
113889972,3cyclictest19982-21systemd-journal10:27:353
113889972,3cyclictest19982-21systemd-journal08:50:403
113889972,3cyclictest19982-21systemd-journal07:45:013
113889972,3cyclictest19982-21systemd-journal07:33:353
113889970,3cyclictest30654-21snmpd12:30:003
113859974,2cyclictest508-21dbus-daemon11:17:482
113859974,2cyclictest28-21ksoftirqd/212:05:012
113859974,2cyclictest11736-21in:imuxsock07:30:512
113859973,3cyclictest9854-21apt-get09:45:132
113859973,3cyclictest508-21dbus-daemon07:40:262
113859973,3cyclictest30654-21snmpd11:52:562
113859973,3cyclictest28274-21awk11:25:242
113859973,1cyclictest0-21swapper/212:14:342
113859973,1cyclictest0-21swapper/212:07:442
113859973,1cyclictest0-21swapper/210:07:462
113859973,1cyclictest0-21swapper/209:38:502
113859973,1cyclictest0-21swapper/209:24:452
113859972,2cyclictest6595-21ls09:15:002
113819974,2cyclictest508-21dbus-daemon08:50:571
113819974,2cyclictest19982-21systemd-journal11:36:031
113819974,2cyclictest19982-21systemd-journal10:24:491
113819974,2cyclictest19982-21systemd-journal07:47:321
113819974,2cyclictest18892-21/usr/sbin/munin07:25:151
113819974,2cyclictest11738-21rs:main1
113819974,2cyclictest11736-21in:imuxsock10:05:131
113819973,3cyclictest7661-21lldpd11:03:161
113819973,3cyclictest568-21ntpq09:05:211
113819973,3cyclictest30654-21snmpd07:10:261
113819973,3cyclictest14964-21perl07:15:161
113819973,3cyclictest0-21swapper/111:55:161
113819973,3cyclictest0-21swapper/111:55:161
113819973,1cyclictest0-21swapper/109:28:191
113819972,3cyclictest508-21dbus-daemon07:56:181
113819971,5cyclictest24102-21rm11:22:071
113819970,6cyclictest24977-21taskset07:35:521
113819970,6cyclictest1129-21rm11:54:491
113819970,3cyclictest5513-21awk12:20:171
113819970,2cyclictest12973-21diskstats12:25:161
113819970,1cyclictest8748-21ssh10:39:451
113779974,2cyclictest508-21dbus-daemon10:58:370
113779974,2cyclictest508-21dbus-daemon09:00:060
113779973,3cyclictest29774-21cron09:35:000
113779973,3cyclictest28447-21cron12:35:000
113779973,3cyclictest19982-21systemd-journal10:41:090
113779973,3cyclictest19982-21systemd-journal09:12:380
113779973,3cyclictest19982-21systemd-journal08:47:360
113779973,3cyclictest1272-21ntpq11:00:200
113779973,3cyclictest11379-21sshd08:15:410
113779973,1cyclictest0-21swapper/012:28:540
113779973,1cyclictest0-21swapper/012:00:100
113779973,1cyclictest0-21swapper/010:28:300
113779972,3cyclictest19982-21systemd-journal09:45:540
113779972,3cyclictest19982-21systemd-journal09:16:230
113779971,4cyclictest19982-21systemd-journal11:17:230
113779970,4cyclictest27353-21munin-plugin-st08:55:000
113889966,0cyclictest0-21swapper/309:20:383
113889963,2cyclictest904-21cat07:55:153
113889963,2cyclictest668-21runrttasks11:17:553
113889963,2cyclictest668-21runrttasks10:49:083
113889963,2cyclictest508-21dbus-daemon07:50:023
113889963,2cyclictest4570-21cut09:40:173
113889963,2cyclictest4422-21sh10:35:213
113889963,2cyclictest30654-21snmpd12:21:123
113889963,2cyclictest28126-21cat11:25:243
113889963,2cyclictest16011-21chrt08:27:433
113889963,2cyclictest11736-21in:imuxsock08:18:493
113889962,3cyclictest8377-21cat09:15:223
113889962,3cyclictest8357-21wc08:10:193
113889962,3cyclictest30761-21cat09:35:143
113889962,3cyclictest30654-21snmpd11:07:073
113889962,3cyclictest30654-21snmpd10:41:003
113889962,3cyclictest30654-21snmpd10:30:153
113889962,3cyclictest30654-21snmpd09:08:003
113889962,3cyclictest30654-21snmpd08:58:503
113889962,3cyclictest30654-21snmpd07:46:153
113889962,3cyclictest27958-21ntp_kernel_pll_10:55:193
113889962,3cyclictest22394-21ssh12:10:013
113889962,3cyclictest21943-21cut09:55:163
113889962,3cyclictest21943-21cut09:55:163
113889962,3cyclictest20436-21expr11:45:183
113889962,3cyclictest19982-21systemd-journal07:38:343
113889962,3cyclictest15997-21expr09:50:163
113889962,3cyclictest12817-21sensors_temp07:10:193
113889962,3cyclictest10806-21grep11:10:193
113889962,1cyclictest0-21swapper/312:05:563
113889962,1cyclictest0-21swapper/311:00:013
113889962,1cyclictest0-21swapper/310:04:573
113889961,4cyclictest20932-21apt-get11:20:163
113889961,4cyclictest20657-21turbostat08:40:003
113889961,4cyclictest0-21swapper/310:10:173
113889961,3cyclictest19982-21systemd-journal08:20:043
113889961,2cyclictest27678-21ssh09:32:093
113889960,6cyclictest0-21swapper/312:00:373
113889960,3cyclictest20913-21/usr/sbin/munin08:40:223
113889960,2cyclictest21901-21diskstats10:50:153
113859966,0cyclictest0-21swapper/210:01:572
113859964,2cyclictest28-21ksoftirqd/208:40:002
113859963,3cyclictest0-21swapper/210:38:272
113859963,2cyclictest9293-21sh10:11:252
113859963,2cyclictest7881-21ssh11:07:012
113859963,2cyclictest5286-21unixbench_multi09:40:222
113859963,2cyclictest508-21dbus-daemon09:16:482
113859963,2cyclictest30654-21snmpd09:52:142
113859963,2cyclictest27934-21cpu07:45:132
113859963,2cyclictest27273-21ssh10:26:492
113859963,2cyclictest23679-21expr07:35:132
113859963,2cyclictest19982-21systemd-journal07:30:012
113859963,2cyclictest14073-21latency_hist08:25:012
113859963,2cyclictest1258-21sshd09:05:472
113859963,2cyclictest12552-21apt-get12:25:152
113859963,2cyclictest0-21swapper/211:56:552
113859963,2cyclictest0-21swapper/211:56:552
113859962,3cyclictest508-21dbus-daemon11:00:422
113859962,3cyclictest31195-21awk07:50:202
113859962,3cyclictest30721-21sed12:15:252
113859962,3cyclictest30654-21snmpd08:10:132
113859962,3cyclictest30654-21snmpd08:05:132
113859962,3cyclictest30654-21snmpd07:55:392
113859962,3cyclictest28978-21cat08:55:232
113859962,3cyclictest23160-21apt-get08:45:162
113859962,3cyclictest20921-21sshd10:20:542
113859962,3cyclictest19982-21systemd-journal11:35:362
113859962,3cyclictest19577-21cut09:25:162
113859962,3cyclictest17264-21memory08:30:172
113859962,3cyclictest1427-21systemctl11:30:222
113859962,3cyclictest14197-21cat07:15:012
113859962,3cyclictest14030-21grep11:40:222
113859962,3cyclictest10486-21pluginstate10:40:192
113859962,1cyclictest0-21swapper/212:35:402
113859962,1cyclictest0-21swapper/211:11:122
113859962,1cyclictest0-21swapper/210:45:012
113859962,1cyclictest0-21swapper/209:31:272
113859961,1cyclictest141rcu_preempt10:51:112
113859960,4cyclictest19982-21systemd-journal11:24:542
113859960,4cyclictest19982-21systemd-journal10:15:142
113859960,3cyclictest15850-21sshd08:25:422
113859960,2cyclictest4478-21/usr/sbin/munin12:20:202
113859960,0cyclictest0-21swapper/212:30:012
113819966,0cyclictest13652-21ssh11:13:401
113819963,2cyclictest5143-21rm09:12:301
113819963,2cyclictest31108-21head09:35:161
113819963,2cyclictest30654-21snmpd08:27:341
113819963,2cyclictest29226-21sh12:15:171
113819963,2cyclictest23434-21hostname12:10:181
113819963,2cyclictest18387-21seq07:21:491
113819963,2cyclictest17875-21cat08:30:211
113819963,2cyclictest13862-21sed11:40:211
113819963,2cyclictest13361-21diskstats10:15:161
113819963,2cyclictest11736-21in:imuxsock10:55:361
113819963,2cyclictest11170-21ssh09:18:241
113819963,2cyclictest0-21swapper/111:05:151
113819962,3cyclictest508-21dbus-daemon11:30:191
113819962,3cyclictest508-21dbus-daemon08:47:111
113819962,3cyclictest30654-21snmpd09:45:081
113819962,3cyclictest30654-21snmpd08:05:431
113819962,3cyclictest30654-21snmpd07:30:361
113819962,3cyclictest29738-21cat12:35:181
113819962,3cyclictest27334-21cat11:25:181
113819962,3cyclictest26309-21sed07:40:151
113819962,3cyclictest21611-21cat08:40:171
113819962,3cyclictest18932-21expr08:35:171
113819962,3cyclictest0-21swapper/110:30:411
113819962,3cyclictest0-21swapper/109:55:111
113819962,3cyclictest0-21swapper/109:55:111
113819962,1cyclictest0-21swapper/110:40:091
113819961,4cyclictest2212-21apt-get08:00:031
113819961,4cyclictest2212-21apt-get08:00:031
113819961,3cyclictest7661-21lldpd10:26:151
113819961,3cyclictest0-21swapper/112:05:021
113819960,6cyclictest0-21swapper/112:00:061
113819960,5cyclictest6678-21rm10:10:091
113819960,2cyclictest27416-21ssh10:00:031
113819960,2cyclictest24869-21diskstats09:30:181
113819960,2cyclictest21709-21awk11:45:261
113819960,1cyclictest20624-21apt-get12:30:011
113819960,0cyclictest0-21swapper/107:50:161
113779963,2cyclictest5607-21grep08:05:160
113779963,2cyclictest5357-21sh11:57:000
113779963,2cyclictest5357-21sh11:57:000
113779963,2cyclictest30654-21snmpd09:35:000
113779963,2cyclictest23978-21sh09:30:000
113779963,2cyclictest1982-21taskset07:57:150
113779963,2cyclictest14314-21systemctl09:20:220
113779963,2cyclictest13276-21sshd07:11:350
113779963,2cyclictest1012-21ssh12:37:320
113779963,1cyclictest1607-21diskmemload10:45:110
113779963,1cyclictest0-21swapper/012:21:450
113779962,3cyclictest9696-21sh11:09:430
113779962,3cyclictest4515-21irqstats10:35:220
113779962,3cyclictest30654-21snmpd09:50:050
113779962,3cyclictest30654-21snmpd09:05:350
113779962,3cyclictest30654-21snmpd08:36:380
113779962,3cyclictest30654-21snmpd08:27:010
113779962,3cyclictest30654-21snmpd08:21:460
113779962,3cyclictest30654-21snmpd07:17:350
113779962,3cyclictest30526-21expr07:50:150
113779962,3cyclictest28278-21expr07:45:140
113779962,3cyclictest21562-21cat10:50:150
113779962,3cyclictest21114-21cut11:20:160
113779962,3cyclictest19257-21expr07:25:140
113779962,3cyclictest16680-21expr12:05:150
113779962,3cyclictest15927-21sh10:16:490
113779962,3cyclictest0-21swapper/012:13:170
113779962,3cyclictest0-21swapper/011:31:190
113779962,3cyclictest0-21swapper/011:10:170
113779962,3cyclictest0-21swapper/010:30:190
113779962,1cyclictest0-21swapper/010:05:240
113779961,4cyclictest20733-21idleruntime11:45:200
113779961,3cyclictest19982-21systemd-journal11:35:450
113779961,3cyclictest19982-21systemd-journal10:20:390
113779961,3cyclictest19982-21systemd-journal08:40:370
113779960,3cyclictest28953-21rm12:15:020
113779960,3cyclictest18380-21sshd08:34:340
113779960,2cyclictest25673-21/usr/sbin/munin07:40:190
113889952,2cyclictest2483-21mktemp08:00:023
113889952,2cyclictest2483-21mktemp08:00:023
113889952,2cyclictest23369-21expr08:45:173
113859952,2cyclictest2544-21cat08:00:022
113859952,2cyclictest2544-21cat08:00:022
113859951,3cyclictest30654-21snmpd08:40:022
113859951,3cyclictest30439-21grep10:30:162
113859951,3cyclictest19982-21systemd-journal08:50:062
113819952,2cyclictest7639-21cat08:10:151
113819952,2cyclictest27950-21expr08:55:161
113819950,4cyclictest29938-21cpuspeed09:00:171
113779953,1cyclictest21386-21sh09:55:100
113779953,1cyclictest21386-21sh09:55:100
113779951,3cyclictest21362-21cat07:30:140
113779951,3cyclictest17103-21/usr/sbin/munin07:20:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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