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2025-12-17 - 01:02
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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
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Tue Dec 16, 2025 12:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210572233159,24sleep00-21swapper/007:07:470
209372207149,46sleep20-21swapper/207:06:122
209912198161,24sleep10-21swapper/107:06:561
210052196159,24sleep30-21swapper/307:07:063
258942600,0sleep20-21swapper/208:25:142
2131299140,13cyclictest0-21swapper/112:20:111
21304991412,1cyclictest9-21ksoftirqd/011:00:010
2131299130,12cyclictest0-21swapper/111:20:171
21325991210,1cyclictest35-21ksoftirqd/307:45:003
21316991211,0cyclictest13574-21apt-get08:00:122
21316991210,1cyclictest28-21ksoftirqd/209:35:002
2130499123,4cyclictest8648-21cat07:50:000
21304991210,1cyclictest9-21ksoftirqd/009:20:010
2132599119,1cyclictest35-21ksoftirqd/312:35:003
2131699119,1cyclictest28-21ksoftirqd/210:20:012
2132599109,1cyclictest35-21ksoftirqd/307:36:183
2131699108,1cyclictest384-21apt-get08:40:122
213129990,4cyclictest0-21swapper/112:30:131
213049997,1cyclictest9-21ksoftirqd/009:40:000
213259987,1cyclictest35-21ksoftirqd/310:20:123
213259986,1cyclictest707-21snmpd11:54:403
213259986,1cyclictest707-21snmpd10:01:343
213259986,1cyclictest707-21snmpd09:43:243
213259981,5cyclictest23666-21munin-node11:59:583
213259981,3cyclictest0-21swapper/307:15:133
213169987,1cyclictest28-21ksoftirqd/208:50:002
213169986,1cyclictest707-21snmpd11:23:362
213169986,1cyclictest61650irq/122-eno107:45:212
213169986,1cyclictest28-21ksoftirqd/207:40:002
213169986,1cyclictest28-21ksoftirqd/207:15:012
213169986,1cyclictest25831-21tail10:40:152
213169980,5cyclictest0-21swapper/208:20:112
213049987,1cyclictest9-21ksoftirqd/012:34:250
213049986,1cyclictest9-21ksoftirqd/010:16:560
213049986,1cyclictest707-21snmpd07:52:120
213049986,1cyclictest21725-21cat08:15:170
213049985,3cyclictest23666-21munin-node07:36:130
213049984,4cyclictest11490-21sed11:20:010
213049984,2cyclictest240-21systemd-journal08:40:000
213049984,2cyclictest240-21systemd-journal08:25:010
213049982,5cyclictest29290-21latency_hist07:25:010
213049980,7cyclictest993-21/usr/sbin/munin12:05:150
213049980,7cyclictest13306-21cron08:00:010
213049980,4cyclictest25615-21perf11:50:000
213259976,1cyclictest707-21snmpd12:12:013
213259976,1cyclictest707-21snmpd11:44:013
213259976,1cyclictest707-21snmpd08:52:193
213259976,1cyclictest707-21snmpd08:18:523
213259975,1cyclictest707-21snmpd11:26:483
213259975,1cyclictest707-21snmpd09:16:563
213259975,1cyclictest707-21snmpd09:03:023
213259975,1cyclictest707-21snmpd08:45:103
213259975,1cyclictest707-21snmpd08:07:543
213259975,1cyclictest5182-21apt-get12:15:123
213259974,1cyclictest240-21systemd-journal12:40:003
213259973,3cyclictest0-21swapper/312:20:103
213259970,4cyclictest3819-21aten_r1power_cu09:55:123
213259970,2cyclictest0-21swapper/309:05:193
213259970,2cyclictest0-21swapper/308:00:123
213169976,1cyclictest707-21snmpd11:02:452
213169976,1cyclictest61650irq/122-eno112:20:162
213169976,1cyclictest61650irq/122-eno110:50:122
213169976,1cyclictest61650irq/122-eno107:50:192
213169976,1cyclictest61650irq/122-eno107:25:142
213169976,1cyclictest28-21ksoftirqd/210:55:012
213169976,1cyclictest28-21ksoftirqd/209:40:002
213169975,1cyclictest707-21snmpd09:57:362
213169975,1cyclictest707-21snmpd09:23:082
213169975,1cyclictest707-21snmpd07:21:172
213169975,1cyclictest61650irq/122-eno112:00:202
213169975,1cyclictest61650irq/122-eno110:45:142
213169975,1cyclictest61650irq/122-eno109:25:132
213169975,1cyclictest0-21swapper/211:33:452
213169974,3cyclictest24399-21sensors07:15:012
213169974,2cyclictest6174-21apt-get10:00:122
213169973,2cyclictest548-21systemd-logind11:55:202
213169971,3cyclictest0-21swapper/211:45:122
213169970,6cyclictest17005-21/usr/sbin/munin10:20:202
213169970,5cyclictest0-21swapper/211:35:132
213169970,4cyclictest5927-21hddtemp_smartct08:50:152
213129977,0cyclictest21-21ksoftirqd/111:04:491
213129971,6cyclictest0-21swapper/110:05:311
213129970,3cyclictest0-21swapper/108:30:121
213129970,2cyclictest0-21swapper/109:50:121
213129970,1cyclictest0-21swapper/110:14:131
213049976,1cyclictest9-21ksoftirqd/012:25:120
213049976,1cyclictest707-21snmpd07:16:380
213049975,1cyclictest707-21snmpd10:29:280
213049975,1cyclictest24498-21df_inode09:30:140
213049975,1cyclictest16673-21ls09:15:010
213049974,1cyclictest240-21systemd-journal12:40:000
213049974,0cyclictest0-21swapper/009:20:180
213049970,6cyclictest301412sleep011:58:180
213049970,6cyclictest0-21swapper/008:10:140
213049970,6cyclictest0-21swapper/008:00:140
213049970,2cyclictest27227-21python11:50:210
213049970,1cyclictest4142-21/usr/sbin/munin07:40:130
213049970,1cyclictest29514-21munin-run10:50:000
213049970,1cyclictest17128-21memory08:05:160
2990260,0sleep30-21swapper/309:50:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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