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2026-01-10 - 22:37
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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 Sat Jan 10, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177682301275,16sleep20-21swapper/207:08:372
177682301275,16sleep20-21swapper/207:08:362
178742278247,21sleep10-21swapper/107:09:531
178742278247,21sleep10-21swapper/107:09:521
178292274244,19sleep00-21swapper/007:09:230
178292274244,19sleep00-21swapper/007:09:220
175672262230,22sleep30-21swapper/307:06:013
175672262230,22sleep30-21swapper/307:06:003
215302650,0sleep20-21swapper/211:54:092
204522600,0sleep10-21swapper/109:55:441
326382590,0sleep30-21swapper/311:40:343
281632590,1sleep328153-21turbostat11:00:013
245422590,0sleep30-21swapper/311:16:263
42522580,0sleep30-21swapper/309:26:343
269582580,0sleep30-21swapper/310:20:003
303222550,0sleep10-21swapper/110:40:441
261352550,0sleep30-21swapper/307:25:143
165812550,0sleep00-21swapper/011:30:570
65272540,0sleep10-21swapper/110:46:011
170722540,0sleep20-21swapper/208:15:182
196292530,0sleep30-21swapper/309:55:193
220652450,0sleep00-21swapper/011:35:010
40142180,0sleep30-21swapper/309:45:503
313212180,0sleep30-21swapper/310:41:323
167222150,0sleep30-21swapper/311:11:463
293972140,0sleep20-21swapper/211:58:492
200062140,0sleep00-21swapper/011:14:200
186592140,0sleep20-21swapper/212:11:232
90232130,0sleep30-21swapper/311:26:433
121992130,0sleep30-21swapper/310:10:193
69982120,0sleep30-21swapper/310:46:243
180029990,8cyclictest20841-21ssh12:13:043
31399280,0sleep10-21swapper/108:50:001
30144280,0sleep10-21swapper/111:59:241
21388280,0sleep00-21swapper/011:54:030
19197280,0sleep10-21swapper/108:20:171
180029980,7cyclictest4440-21ssh12:03:133
179979984,3cyclictest658-21snmpd10:52:222
179979984,2cyclictest275-21systemd-journal09:50:002
179889983,3cyclictest275-21systemd-journal07:53:230
4573270,0sleep10-21swapper/110:05:451
23130270,0sleep10-21swapper/111:35:141
180029973,3cyclictest504-21dbus-daemon10:40:013
180029973,2cyclictest275-21systemd-journal12:08:323
180029973,1cyclictest0-21swapper/311:20:283
180029970,3cyclictest8565-21munin-run08:00:013
179979974,2cyclictest504-21dbus-daemon09:45:202
179979973,3cyclictest658-21snmpd07:16:382
179979973,3cyclictest275-21systemd-journal11:46:562
179939975,2cyclictest2250ksoftirqd/109:10:011
179939974,2cyclictest501-21in:imuxsock12:20:511
179939974,2cyclictest275-21systemd-journal09:50:261
179939974,2cyclictest22-21ksoftirqd/111:10:021
179939974,2cyclictest22-21ksoftirqd/111:10:011
179939973,3cyclictest21025-21ssh10:15:281
179939973,1cyclictest0-21swapper/109:33:581
179889973,3cyclictest658-21snmpd10:24:280
179889973,3cyclictest622-21sshd08:50:220
179889973,3cyclictest275-21systemd-journal08:04:480
179889973,3cyclictest27292-21cat10:00:190
179889973,1cyclictest0-21swapper/011:57:150
16372270,0sleep00-21swapper/012:30:030
180029963,2cyclictest658-21snmpd11:00:073
180029963,2cyclictest658-21snmpd09:32:123
180029963,2cyclictest658-21snmpd08:50:153
180029963,2cyclictest31673-21tr12:20:003
180029963,2cyclictest30582-21ssh11:59:463
180029963,2cyclictest28610-21cat07:30:163
180029963,2cyclictest28381-21ssh10:00:273
180029963,2cyclictest275-21systemd-journal10:51:213
180029963,2cyclictest275-21systemd-journal10:05:193
180029963,2cyclictest24899-21apt09:20:083
180029963,2cyclictest18185-21cat09:35:133
180029963,2cyclictest13770-21ssh09:51:583
180029962,3cyclictest658-21snmpd11:50:273
180029962,3cyclictest658-21snmpd11:34:283
180029962,3cyclictest658-21snmpd10:32:033
180029962,3cyclictest658-21snmpd09:17:453
180029962,3cyclictest658-21snmpd08:12:383
180029962,3cyclictest658-21snmpd08:01:373
180029962,3cyclictest658-21snmpd07:46:513
180029962,3cyclictest658-21snmpd07:43:303
180029962,3cyclictest658-21snmpd07:22:263
180029962,3cyclictest6203-21grep09:05:143
180029962,3cyclictest27682-21cat08:40:173
180029962,3cyclictest275-21systemd-journal11:35:533
180029962,3cyclictest275-21systemd-journal07:54:473
180029962,3cyclictest21744-21cat07:15:163
180029962,3cyclictest13006-21cron08:10:013
180029962,3cyclictest1-21systemd12:31:533
180029962,1cyclictest0-21swapper/312:25:433
180029962,1cyclictest0-21swapper/310:20:553
180029961,2cyclictest25392-21fschecks_count12:35:143
180029960,6cyclictest0-21swapper/312:20:243
180029960,6cyclictest0-21swapper/309:41:383
180029960,6cyclictest0-21swapper/308:25:223
180029960,5cyclictest18475-21cstates07:10:133
180029960,2cyclictest4508-21ntp_states09:00:173
180029960,2cyclictest4493-21/usr/sbin/munin11:05:193
180029960,2cyclictest4493-21/usr/sbin/munin11:05:193
179979966,0cyclictest0-21swapper/212:34:342
179979964,1cyclictest14657-21grep11:30:152
179979963,2cyclictest638-21rm11:21:402
179979963,2cyclictest6341-21ssh10:45:532
179979963,2cyclictest28733-21idleruntime10:40:162
179979963,2cyclictest275-21systemd-journal07:15:012
179979963,2cyclictest25812-21sh12:15:312
179979963,2cyclictest24829-21sh12:35:112
179979963,2cyclictest23945-21sh11:15:572
179979963,2cyclictest2096-21ssh10:05:032
179979963,2cyclictest13217-11brltty07:37:332
179979963,2cyclictest11401-21ssh10:30:072
179979962,3cyclictest658-21snmpd11:06:522
179979962,3cyclictest658-21snmpd11:06:522
179979962,3cyclictest658-21snmpd10:35:402
179979962,3cyclictest658-21snmpd09:40:492
179979962,3cyclictest658-21snmpd08:52:002
179979962,3cyclictest658-21snmpd08:20:372
179979962,3cyclictest658-21snmpd07:23:382
179979962,3cyclictest31986-21sensors_temp11:40:192
179979962,3cyclictest275-21systemd-journal12:25:002
179979962,3cyclictest275-21systemd-journal08:15:002
179979962,3cyclictest20202-21awk10:15:162
179979962,3cyclictest13127-21apt11:10:112
179979962,2cyclictest13868-21ssh09:13:202
179979962,1cyclictest0-21swapper/212:23:362
179979962,1cyclictest0-21swapper/209:22:492
179979961,2cyclictest18642-21ssh09:35:172
179979960,6cyclictest0-21swapper/211:01:272
179979960,6cyclictest0-21swapper/210:57:432
179979960,6cyclictest0-21swapper/210:23:052
179979960,6cyclictest0-21swapper/209:58:182
179979960,5cyclictest31917-21fw_packets12:00:122
179979960,4cyclictest3513-21sshd09:00:072
179979960,2cyclictest29220-21/usr/sbin/munin08:45:152
179979960,0cyclictest0-21swapper/211:37:182
179979960,0cyclictest0-21swapper/211:26:072
179979960,0cyclictest0-21swapper/210:00:502
179939966,0cyclictest0-21swapper/111:23:111
179939966,0cyclictest0-21swapper/110:54:471
179939966,0cyclictest0-21swapper/109:45:441
179939963,2cyclictest658-21snmpd12:36:101
179939963,2cyclictest5392-21sh11:44:311
179939963,2cyclictest4213-21ls07:50:011
179939963,2cyclictest30058-21ssh10:01:461
179939963,2cyclictest275-21systemd-journal09:25:331
179939963,2cyclictest275-21systemd-journal08:40:271
179939963,2cyclictest23316-21ssh12:15:001
179939963,2cyclictest18192-21taskset10:14:541
179939963,2cyclictest12292-21cat10:30:171
179939963,2cyclictest10753-21sshd08:04:481
179939963,2cyclictest0-21swapper/109:00:291
179939963,1cyclictest0-21swapper/111:11:311
179939962,3cyclictest658-21snmpd12:30:191
179939962,3cyclictest658-21snmpd12:25:311
179939962,3cyclictest658-21snmpd11:45:231
179939962,3cyclictest658-21snmpd11:02:161
179939962,3cyclictest658-21snmpd09:37:541
179939962,3cyclictest658-21snmpd09:16:461
179939962,3cyclictest658-21snmpd08:30:351
179939962,3cyclictest658-21snmpd08:10:491
179939962,3cyclictest6143-21cat11:25:131
179939962,3cyclictest504-21dbus-daemon07:40:181
179939962,3cyclictest32171-11brltty10:56:201
179939962,3cyclictest32109-21cat12:00:131
179939962,3cyclictest30651-21cat07:35:151
179939962,3cyclictest20966-21cat08:25:161
179939962,3cyclictest20172-21cron07:15:011
179939962,3cyclictest1483-21seq08:55:111
179939962,1cyclictest0-21swapper/110:29:551
179939961,3cyclictest23047-21sendmail07:20:011
179939960,6cyclictest0-21swapper/112:18:231
179939960,6cyclictest0-21swapper/112:07:471
179939960,6cyclictest0-21swapper/111:34:221
179939960,6cyclictest0-21swapper/110:23:531
179939960,5cyclictest26903-21awk09:40:151
179939960,5cyclictest25276-21cat09:20:101
179939960,2cyclictest27549-21perf10:40:001
179939960,0cyclictest0-21swapper/111:50:421
179889966,0cyclictest0-21swapper/011:02:340
179889966,0cyclictest0-21swapper/010:31:310
179889963,2cyclictest9048-21cat12:25:160
179889963,2cyclictest663-21runrttasks11:25:040
179889963,2cyclictest6619-21ssh10:07:220
179889963,2cyclictest6327-21sh10:45:520
179889963,2cyclictest504-21dbus-daemon09:00:070
179889963,2cyclictest3868-21ssh11:24:080
179889963,2cyclictest30359-11brltty10:26:390
179889963,2cyclictest29136-21ssh09:22:110
179889963,2cyclictest23709-21ssh10:37:020
179889963,2cyclictest22705-21sh10:55:470
179889963,2cyclictest19299-21wc08:20:190
179889963,2cyclictest1592-21ssh10:43:360
179889963,2cyclictest12487-21sh12:08:020
179889963,2cyclictest12255-21rm09:12:060
179889962,3cyclictest658-21snmpd12:24:340
179889962,3cyclictest658-21snmpd12:18:480
179889962,3cyclictest658-21snmpd11:18:430
179889962,3cyclictest658-21snmpd09:42:000
179889962,3cyclictest658-21snmpd09:25:060
179889962,3cyclictest658-21snmpd08:56:260
179889962,3cyclictest658-21snmpd08:37:170
179889962,3cyclictest658-21snmpd08:26:020
179889962,3cyclictest658-21snmpd08:17:140
179889962,3cyclictest658-21snmpd08:06:310
179889962,3cyclictest5264-21cat11:05:150
179889962,3cyclictest5264-21cat11:05:150
179889962,3cyclictest504-21dbus-daemon12:40:000
179889962,3cyclictest27101-21date10:20:010
179889962,3cyclictest24595-21date07:20:200
179889962,3cyclictest19222-21ntp_states09:55:170
179889962,3cyclictest17251-21idleruntime09:15:150
179889962,1cyclictest0-21swapper/012:01:280
179889962,1cyclictest0-21swapper/010:10:220
179889962,1cyclictest0-21swapper/009:50:280
179889960,6cyclictest0-21swapper/011:40:410
179889960,6cyclictest0-21swapper/009:31:360
179889960,5cyclictest30190-21tr08:45:150
179889960,0cyclictest0-21swapper/010:54:010
180029952,3cyclictest22533-21apt-get08:30:133
180029952,2cyclictest658-21snmpd07:35:063
180029952,2cyclictest3269-21taskset10:25:103
180029952,2cyclictest25423-21cat08:35:143
180029952,2cyclictest18076-21apt08:20:113
180029952,2cyclictest16659-21missed_timers08:15:153
180029952,2cyclictest1537-21ls08:55:123
180029951,3cyclictest29936-21irqstats08:45:153
180029951,1cyclictest6487-21apt-get11:45:113
180029950,4cyclictest9392-21which09:10:163
179979953,1cyclictest5976-21cstates09:05:132
179979953,1cyclictest1695-21fschecks_count08:55:122
179979952,2cyclictest9303-21grep09:30:132
179979952,2cyclictest8959-21grep08:00:142
179979952,2cyclictest8846-1kworker/u9:010:25:032
179979952,2cyclictest658-21snmpd08:25:102
179979952,2cyclictest658-21snmpd07:55:432
179979952,2cyclictest658-21snmpd07:40:402
179979952,2cyclictest5002-21basename07:50:152
179979952,2cyclictest28441-21cat07:30:152
179979952,2cyclictest28181-21tr08:40:212
179979952,2cyclictest25518-21taskset07:25:112
179979952,2cyclictest24859-21cat08:35:122
179979952,2cyclictest22627-21cat08:30:132
179979952,2cyclictest1344-21forks09:25:142
179979952,2cyclictest10522-21basename10:10:112
179979952,1cyclictest0-21swapper/212:05:072
179979951,3cyclictest17456-21/usr/sbin/munin09:15:162
179979951,3cyclictest11170-21cpuspeed_turbos08:05:122
179979950,3cyclictest275-21systemd-journal07:46:562
179939953,1cyclictest29139-21timerwakeupswit07:30:221
179939953,1cyclictest27123-21taskset07:25:301
179939952,2cyclictest658-21snmpd07:50:031
179939952,2cyclictest504-21dbus-daemon07:20:271
179939952,2cyclictest275-21systemd-journal09:10:081
179939952,2cyclictest26094-21ls08:35:191
179939952,2cyclictest16403-21tail08:15:131
179939952,2cyclictest11935-21grep08:05:151
179939951,3cyclictest6640-21cat07:55:111
179939951,3cyclictest32733-21ls08:50:171
179939950,5cyclictest0-21swapper/111:15:071
179889952,2cyclictest658-21snmpd09:05:030
179889952,2cyclictest658-21snmpd07:35:240
179889952,2cyclictest6289-21ssh11:45:010
179889952,2cyclictest28524-21cat07:30:170
179889952,2cyclictest275-21systemd-journal07:55:110
179889952,2cyclictest27245-21expr08:40:140
179889952,2cyclictest25504-21chrt07:25:040
179889952,2cyclictest2349-21cat07:45:130
179889952,2cyclictest22617-21ls08:30:130
179889952,2cyclictest19551-21timerandwakeup07:10:190
179889952,2cyclictest1503-21sh09:45:070
179889952,2cyclictest14237-21cat08:10:130
179889951,3cyclictest21459-21diskstats07:15:130
179889951,3cyclictest15423-21ssh12:10:080
179889950,4cyclictest32723-21diskstats07:40:120
179889950,3cyclictest17265-21sh09:35:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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