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2026-03-22 - 05:54
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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 highest latencies:
System rackdslot0.osadl.org (updated Sun Mar 22, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2830699230,22cyclictest2308-21munin-plugin-st23:10:012
2830299230,5cyclictest0-21swapper/122:03:081
2829599230,5cyclictest0-21swapper/020:27:440
2829599230,1cyclictest0-21swapper/021:00:130
2830299224,17cyclictest0-21swapper/120:23:531
2829599220,18cyclictest0-21swapper/023:05:120
2830699210,20cyclictest843-21systemd-network22:13:562
2830699210,20cyclictest843-21systemd-network21:34:472
2830299200,19cyclictest870-21systemd-logind21:16:521
2830699198,10cyclictest0-21swapper/221:46:292
2830699194,1cyclictest0-21swapper/221:05:002
2830699192,2cyclictest4258-21grep20:20:132
2830699192,1cyclictest0-21swapper/223:25:582
28306991916,2cyclictest1799-21cpuspeed_turbos00:05:132
28306991913,5cyclictest0-21swapper/222:20:012
2830699190,1cyclictest0-21swapper/219:50:032
2830699190,18cyclictest0-21swapper/219:15:302
28302991917,1cyclictest0-21swapper/122:55:191
28302991917,1cyclictest0-21swapper/121:52:271
28302991917,1cyclictest0-21swapper/100:37:251
2830299190,18cyclictest870-21systemd-logind23:06:521
2829599194,1cyclictest0-21swapper/023:55:170
28295991914,1cyclictest0-21swapper/022:25:000
2830699189,5cyclictest0-21swapper/222:39:292
2830699182,1cyclictest28683-21cpuspeed_turbos23:55:132
28306991815,2cyclictest27948-21processes22:55:202
28306991815,2cyclictest14955-21cut00:25:192
28306991813,3cyclictest0-21swapper/219:31:562
2830699181,16cyclictest0-21swapper/219:30:012
2830699181,15cyclictest0-21swapper/223:15:182
2830699180,18cyclictest0-21swapper/223:35:222
28302991814,3cyclictest0-21swapper/122:51:291
28302991813,4cyclictest0-21swapper/100:22:361
2829599182,15cyclictest9-21ksoftirqd/000:21:560
2829599182,15cyclictest17428-21needreboot00:30:170
28295991816,1cyclictest2815-21load19:20:170
28295991814,3cyclictest5601-21lxd21:58:510
28306991715,1cyclictest0-21swapper/219:20:162
28306991714,2cyclictest26292-21ntpq20:00:202
28306991714,2cyclictest26047-21missed_timers21:55:172
28306991714,2cyclictest16755-21snapd22:25:182
28306991714,2cyclictest16755-21snapd19:55:182
28306991714,2cyclictest16748-21snapd23:42:462
28306991714,2cyclictest16614-21expr19:45:132
28306991714,2cyclictest10325-21munin-plugin-st00:20:002
2830699170,2cyclictest455-21plymouthd21:50:062
2830699170,2cyclictest30758-21pzem_power23:00:202
2830699170,2cyclictest12207-21ntp_offset00:20:192
2830699170,16cyclictest8059-21nfsd422:20:182
2830699170,16cyclictest3991-21H222:10:212
2830699170,16cyclictest30990-21grep21:05:232
2830699170,16cyclictest26227-21date21:00:012
2830699170,16cyclictest2528-21/usr/sbin/munin23:10:112
2830699170,16cyclictest21222-21expr20:50:152
2830699170,16cyclictest19295-21proc_pri20:45:182
2830699170,16cyclictest1829-21systemd-journal22:05:012
2830699170,16cyclictest1829-21systemd-journal22:05:012
2830699170,16cyclictest17245-21ls21:40:132
2830699170,16cyclictest15378-21timerwakeupswit19:40:212
2830699170,16cyclictest1501-21munin-plugin-st00:05:012
2830699170,16cyclictest0-21swapper/222:45:182
2830699170,16cyclictest0-21swapper/221:15:522
28302991716,0cyclictest0-21swapper/120:59:491
28302991715,1cyclictest96882chrt19:33:271
28302991715,1cyclictest0-21swapper/121:20:181
28302991714,2cyclictest843-21systemd-network22:25:471
28302991714,2cyclictest3991-21H222:10:211
28302991714,2cyclictest28934-21nfsd420:05:191
28302991714,2cyclictest2872-21systemd-logind21:46:521
28302991714,2cyclictest2872-21systemd-logind20:16:521
28302991714,2cyclictest24291-21nfsd423:45:181
28302991714,2cyclictest13821-21expr19:40:131
28302991714,2cyclictest10426-21sed00:20:001
2830299171,15cyclictest16287-21latency_hist21:40:001
2830299171,15cyclictest13734-21sendmail_mailqu20:35:211
2830299170,2cyclictest933-21chrt19:16:371
2830299170,2cyclictest3414-21master23:17:231
2830299170,2cyclictest2872-21systemd-logind22:36:521
2830299170,2cyclictest17354-21apache_accesses23:35:121
2830299170,2cyclictest16878-21latency_hist23:35:011
2830299170,1cyclictest0-21swapper/123:53:371
2830299170,1cyclictest0-21swapper/100:10:141
2830299170,16cyclictest4072-21nfsd423:10:161
2830299170,16cyclictest3450-21gsd-color22:45:011
2830299170,16cyclictest32614-21expr21:10:141
2830299170,16cyclictest31695-21nfsd422:05:181
2830299170,16cyclictest31695-21nfsd422:05:181
2830299170,16cyclictest3053-21systemd-logind19:11:521
2830299170,16cyclictest22533-21chrt23:44:431
2830299170,16cyclictest1704-21http_loadtime22:10:151
2830299170,16cyclictest1516-21lxd21:56:511
2830299170,16cyclictest13677-21chrt23:28:421
2830299170,16cyclictest12751-21cat22:30:131
2830299170,16cyclictest0-21swapper/123:20:141
2830299170,16cyclictest0-21swapper/122:20:201
28295991716,1cyclictest9-21ksoftirqd/019:10:360
28295991715,1cyclictest0-21swapper/021:15:160
28295991714,2cyclictest411-21hddtemp_smartct21:10:150
28295991714,2cyclictest2152-21nfsd420:15:170
28295991714,2cyclictest12642-21sendmail_mailst21:30:190
28295991714,1cyclictest0-21swapper/000:10:200
28295991713,1cyclictest111rcu_preempt22:53:080
2829599171,1cyclictest31598-21netstat22:05:180
2829599171,1cyclictest31598-21netstat22:05:180
2829599171,1cyclictest31424-21interrupts20:10:160
2829599170,2cyclictest870-21systemd-logind22:58:520
2829599170,2cyclictest7456-21timerwakeupswit23:15:210
2829599170,2cyclictest5258-21nfsd422:15:180
2829599170,2cyclictest24945-21chrt23:45:300
2829599170,2cyclictest20344-21munin-run20:50:010
2829599170,2cyclictest19549-21postgres23:38:450
2829599170,16cyclictest9445-21/usr/sbin/munin20:30:200
2829599170,16cyclictest4455-21expr20:20:130
2829599170,16cyclictest3503-21munin-run22:15:010
2829599170,16cyclictest31167-21/usr/sbin/munin00:00:130
2829599170,16cyclictest2744-21expr23:10:110
2829599170,16cyclictest21584-21sshd19:53:070
2829599170,16cyclictest21332-21fw_packets22:45:120
2829599170,16cyclictest20986-21appstreamcli20:50:020
2829599170,16cyclictest2007-21systemd-journal21:21:590
2829599170,16cyclictest20048-21load00:35:170
2829599170,16cyclictest18084-21expr22:40:120
2829599170,16cyclictest16915-21timerandwakeup20:40:190
2829599170,16cyclictest16748-21snapd21:40:060
2829599170,15cyclictest3979-21H222:10:210
28306991615,1cyclictest0-21swapper/223:50:142
28306991614,1cyclictest32077-21mailstats20:10:202
28306991614,1cyclictest17901-21apache_volume22:40:112
28306991614,1cyclictest0-21swapper/223:30:142
28306991614,1cyclictest0-21swapper/221:25:132
28306991614,1cyclictest0-21swapper/221:12:202
28306991614,1cyclictest0-21swapper/220:30:212
28306991614,1cyclictest0-21swapper/219:35:012
28306991614,1cyclictest0-21swapper/200:35:132
28306991614,1cyclictest0-21swapper/200:30:162
28306991614,1cyclictest0-21swapper/200:10:172
28306991613,2cyclictest28763-21missed_timers22:00:182
2830699160,15cyclictest6863-21cut21:20:182
2830699160,15cyclictest6756-21apt-get20:25:132
2830699160,15cyclictest23731-21idleruntime23:45:152
2830699160,15cyclictest16641-21sendmail_mailqu20:40:182
2830699160,15cyclictest13717-21pzem_power20:35:202
2830699160,15cyclictest12346-21cpuspeed_turbos22:30:132
2830699160,15cyclictest0-21swapper/221:35:482
2830699160,15cyclictest0-21swapper/220:15:132
2830699160,15cyclictest0-21swapper/220:10:022
28302991614,1cyclictest0-21swapper/123:00:031
28302991614,1cyclictest0-21swapper/120:45:151
28302991614,1cyclictest0-21swapper/119:45:151
28302991614,1cyclictest0-21swapper/119:20:141
28302991614,1cyclictest0-21swapper/100:30:171
28302991614,1cyclictest0-21swapper/100:25:181
28302991614,1cyclictest0-21swapper/100:05:131
28302991613,2cyclictest20248-21http20:50:011
28302991613,1cyclictest0-21swapper/122:15:211
2830299160,2cyclictest6781-21cpu20:25:141
2830299160,2cyclictest15806-21which20:40:121
2830299160,1cyclictest9821-21apt-get19:35:021
2830299160,1cyclictest0-21swapper/121:30:121
2830299160,1cyclictest0-21swapper/121:00:211
2830299160,1cyclictest0-21swapper/120:30:101
2830299160,1cyclictest0-21swapper/119:25:141
2830299160,15cyclictest20604-21/usr/sbin/munin22:45:091
2830299160,15cyclictest19252-21dpkg19:50:011
2830299160,15cyclictest1856-21systemd-udevd19:58:521
2830299160,15cyclictest0-21swapper/123:55:101
2830299160,15cyclictest0-21swapper/121:40:201
2830299160,15cyclictest0-21swapper/121:25:171
2830299160,15cyclictest0-21swapper/120:10:201
2830299160,15cyclictest0-21swapper/120:05:011
2830299160,15cyclictest0-21swapper/100:00:131
28295991614,1cyclictest95422chrt22:25:130
28295991614,1cyclictest0-21swapper/023:44:010
28295991614,1cyclictest0-21swapper/023:20:150
28295991614,1cyclictest0-21swapper/023:00:100
28295991614,1cyclictest0-21swapper/021:45:220
28295991614,1cyclictest0-21swapper/021:25:210
28295991614,1cyclictest0-21swapper/020:01:170
28295991614,1cyclictest0-21swapper/019:40:170
28295991614,1cyclictest0-21swapper/019:35:180
28295991614,1cyclictest0-21swapper/000:15:070
28295991613,2cyclictest5258-21expr19:25:140
28295991613,2cyclictest24084-21expr20:55:140
28295991613,2cyclictest15543-21chrt00:26:070
2829599161,1cyclictest9-21ksoftirqd/020:07:280
2829599160,2cyclictest14288-21chrt22:31:380
2829599160,1cyclictest28244-21df22:00:150
2829599160,15cyclictest3992-21H222:10:210
2829599160,15cyclictest17363-21sed19:45:170
2829599160,15cyclictest15579-21taskset23:30:190
2829599160,15cyclictest14943-21sed21:35:150
2829599160,15cyclictest13251-21timerandwakeup23:25:200
2829599160,15cyclictest0-21swapper/023:50:170
2829599160,15cyclictest0-21swapper/021:50:130
2829599160,15cyclictest0-21swapper/021:05:170
2829599160,15cyclictest0-21swapper/020:35:210
2829599160,15cyclictest0-21swapper/019:55:190
2829599160,15cyclictest0-21swapper/019:30:110
2829599160,15cyclictest0-21swapper/000:05:130
28306991512,2cyclictest8749-21acpi23:20:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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