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2026-08-31 - 07:51
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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 Mon Aug 31, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1332599273,19cyclictest0-21swapper/000:29:590
1332599260,0cyclictest0-21swapper/023:50:120
1332899240,19cyclictest23949-21cpuspeed_turbos00:15:132
1332599242,18cyclictest0-21swapper/021:25:000
1332599233,11cyclictest600-21munin-run19:45:000
1332899225,13cyclictest0-21swapper/222:25:152
1332799220,4cyclictest0-21swapper/122:50:371
1332899215,1cyclictest28-21ksoftirqd/220:59:432
13328992119,1cyclictest28-21ksoftirqd/221:35:232
1332799210,20cyclictest0-21swapper/121:30:011
1332599210,19cyclictest3985-21H222:10:210
13328992012,4cyclictest0-21swapper/222:19:132
1332899200,17cyclictest4035-21H222:10:212
13325992016,3cyclictest0-21swapper/000:20:220
1332599200,2cyclictest455-21plymouthd20:48:370
1332599200,2cyclictest455-21plymouthd20:48:370
1332899192,2cyclictest3976-21H222:10:212
1332899192,16cyclictest4237-21grep23:40:122
13328991917,1cyclictest0-21swapper/221:16:512
13328991917,1cyclictest0-21swapper/220:29:102
1332799193,1cyclictest0-21swapper/100:34:571
13327991915,3cyclictest0-21swapper/122:00:011
1332799190,1cyclictest0-21swapper/123:15:221
1332799190,18cyclictest1521-21lxd00:25:121
1332799190,16cyclictest3985-21H222:10:211
1332799190,16cyclictest3985-21H222:10:211
1332599190,2cyclictest3981-21H222:10:210
1332599190,16cyclictest3987-21H222:10:210
1332599190,16cyclictest3987-21H222:10:210
1332599190,16cyclictest3976-21H222:10:210
1332899183,1cyclictest28-21ksoftirqd/222:25:002
1332899182,2cyclictest0-21swapper/200:20:142
1332899182,1cyclictest1314-21mailstats00:30:232
13328991816,1cyclictest28-21ksoftirqd/220:34:542
13328991816,1cyclictest0-21swapper/223:46:272
13328991816,1cyclictest0-21swapper/222:31:322
13328991815,2cyclictest3991-21H222:10:212
13328991815,2cyclictest3991-21H222:10:212
13328991815,2cyclictest12571-21processes21:00:192
13328991814,2cyclictest4035-21H222:10:212
13328991814,2cyclictest2114-21nfsd423:35:202
1332899181,2cyclictest17367-21chrt23:05:162
1332899181,16cyclictest3976-21H222:10:212
1332899180,2cyclictest4035-21H222:10:212
1332899180,2cyclictest3989-21H222:10:212
1332899180,17cyclictest8308-21sed21:50:192
1332899180,17cyclictest3987-21H222:10:212
1332899180,17cyclictest1522-21lxd21:24:512
1332899180,17cyclictest0-21swapper/221:57:362
1332899180,16cyclictest3991-21H222:10:212
1332899180,16cyclictest3989-21H222:10:212
1332899180,16cyclictest3976-21H222:10:212
1332899180,16cyclictest16321-21munin-run21:10:012
1332899180,15cyclictest3981-21H222:10:212
1332799182,15cyclictest21-21ksoftirqd/122:28:451
1332799182,15cyclictest21-21ksoftirqd/122:04:101
13327991816,1cyclictest0-21swapper/120:39:101
13327991814,3cyclictest4035-21H222:10:211
13327991814,3cyclictest4035-21H222:10:211
13327991814,3cyclictest3989-21H222:10:211
13327991814,3cyclictest3983-21H222:10:211
13327991814,3cyclictest3983-21H222:10:211
1332799181,2cyclictest3632-21iwlist22:40:141
1332799181,1cyclictest0-21swapper/122:13:301
1332799181,16cyclictest3987-21H222:10:211
1332799180,3cyclictest3991-21H222:10:211
1332799180,3cyclictest14504-21snapd19:57:581
1332799180,2cyclictest4099-21H222:10:211
1332799180,2cyclictest3985-21H222:10:211
1332799180,2cyclictest3985-21H222:10:211
1332799180,2cyclictest3981-21H222:10:211
1332799180,2cyclictest14144-21expr23:00:131
1332799180,1cyclictest0-21swapper/119:40:561
1332799180,17cyclictest0-21swapper/121:05:221
1332799180,16cyclictest4035-21H222:10:211
1332799180,16cyclictest3981-21H222:10:211
1332799180,15cyclictest4099-21H222:10:211
1332799180,15cyclictest3979-21H222:10:211
1332599182,1cyclictest78152chrt20:53:310
1332599182,15cyclictest0-21swapper/020:20:510
13325991815,2cyclictest0-21swapper/021:46:190
13325991814,3cyclictest3991-21H222:10:210
13325991813,2cyclictest3985-21H222:10:210
13325991812,5cyclictest27926-21tr19:35:140
1332599181,16cyclictest0-21swapper/023:45:170
1332599180,2cyclictest4035-21H222:10:210
1332599180,2cyclictest4035-21H222:10:210
1332599180,2cyclictest3987-21H222:10:210
1332599180,2cyclictest3985-21H222:10:210
1332599180,17cyclictest3983-21H222:10:210
1332599180,16cyclictest3983-21H222:10:210
1332599180,15cyclictest4035-21H222:10:210
13328991715,1cyclictest67712sleep219:54:462
13328991715,1cyclictest0-21swapper/223:10:142
13328991714,2cyclictest4791-21idleruntime21:45:152
13328991714,2cyclictest3985-21H222:10:212
13328991714,2cyclictest3983-21H222:10:212
13328991714,2cyclictest3983-21H222:10:212
13328991714,2cyclictest29872-21fschecks_count20:35:132
1332899171,15cyclictest31243-21cut19:40:152
1332899170,2cyclictest4099-21H222:10:212
1332899170,2cyclictest4035-21H222:10:212
1332899170,2cyclictest3987-21H222:10:212
1332899170,2cyclictest3987-21H222:10:212
1332899170,2cyclictest3979-21H222:10:212
1332899170,16cyclictest9944-21/usr/sbin/munin20:00:172
1332899170,16cyclictest9912-21systemctl22:50:212
1332899170,16cyclictest4105-21nfsd422:40:162
1332899170,16cyclictest4099-21H222:10:212
1332899170,16cyclictest4099-21H222:10:212
1332899170,16cyclictest4035-21H222:10:212
1332899170,16cyclictest3981-21H222:10:212
1332899170,16cyclictest3976-21H222:10:212
1332899170,16cyclictest31379-21cat23:30:172
1332899170,16cyclictest29186-21pzem_power23:25:192
1332899170,16cyclictest26124-21grep21:25:182
1332899170,16cyclictest22999-21needreboot19:25:182
1332899170,16cyclictest19647-21cut20:15:182
1332899170,16cyclictest16274-21iwlist00:00:162
1332899170,15cyclictest3991-21H222:10:212
1332799172,1cyclictest6778-21needreboot20:50:181
1332799172,15cyclictest4099-21H222:10:211
13327991715,1cyclictest1920-21chrt20:42:011
13327991715,1cyclictest0-21swapper/122:16:001
13327991714,2cyclictest4195-21grep23:40:131
13327991714,2cyclictest4106-21awk00:35:161
13327991714,2cyclictest3985-21H222:10:211
13327991714,2cyclictest3450-21gsd-color21:10:141
1332799171,15cyclictest0-21swapper/123:30:201
1332799170,2cyclictest4035-21H222:10:211
1332799170,2cyclictest3989-21H222:10:211
1332799170,2cyclictest3989-21H222:10:211
1332799170,2cyclictest3985-21H222:10:211
1332799170,2cyclictest3983-21H222:10:211
1332799170,2cyclictest3979-21H222:10:211
1332799170,2cyclictest3976-21H222:10:211
1332799170,2cyclictest2953-21sshd23:37:031
1332799170,2cyclictest28696-21latency21:30:171
1332799170,2cyclictest27193-21df00:20:141
1332799170,16cyclictest426-21systemd-udevd22:56:521
1332799170,16cyclictest3991-21H222:10:211
1332799170,16cyclictest3991-21H222:10:211
1332799170,16cyclictest3979-21H222:10:211
1332799170,16cyclictest17421-21timerandwakeup20:10:211
1332799170,16cyclictest14860-21nfsd419:10:181
1332799170,16cyclictest11861-21cat20:00:231
1332799170,16cyclictest1085-21gdbus00:05:211
1332799170,15cyclictest3987-21H222:10:211
1332599173,12cyclictest0-21swapper/019:30:140
1332599172,1cyclictest0-21swapper/000:02:350
13325991715,1cyclictest206712chrt19:20:230
13325991714,2cyclictest930-21grep00:30:200
13325991714,2cyclictest815-21sed20:40:170
13325991714,2cyclictest3987-21H222:10:210
13325991714,2cyclictest16744-21apt-get21:10:130
1332599170,2cyclictest4099-21H222:10:210
1332599170,2cyclictest3987-21H222:10:210
1332599170,2cyclictest3981-21H222:10:210
1332599170,2cyclictest3979-21H222:10:210
1332599170,2cyclictest3976-21H222:10:210
1332599170,2cyclictest23737-21cut00:15:000
1332599170,2cyclictest23737-21cut00:15:000
1332599170,2cyclictest1575-21cpuspeed_turbos19:45:140
1332599170,1cyclictest3989-21H222:10:210
1332599170,1cyclictest0-21swapper/022:20:150
1332599170,16cyclictest7655-21expr19:55:140
1332599170,16cyclictest3989-21H222:10:210
1332599170,16cyclictest3989-21H222:10:210
1332599170,16cyclictest3987-21H222:10:210
1332599170,16cyclictest3987-21H222:10:210
1332599170,16cyclictest3981-21H222:10:210
1332599170,16cyclictest31850-21ps21:35:210
1332599170,16cyclictest29482-21expr22:30:160
1332599170,16cyclictest2750-21cat00:35:120
1332599170,16cyclictest22511-21ps22:15:200
1332599170,16cyclictest16624-21grep22:05:190
1332599170,16cyclictest1220-21apache200:05:100
1332599170,16cyclictest1085-21gdbus23:40:210
1332599170,15cyclictest3983-21H222:10:210
13328991614,1cyclictest0-21swapper/223:15:142
13328991614,1cyclictest0-21swapper/219:15:152
1332899160,2cyclictest8500-21nfsd419:55:192
1332899160,15cyclictest3981-21H222:10:212
1332899160,15cyclictest19375-21expr19:20:172
1332899160,15cyclictest1500-21switchtime20:40:212
13327991614,1cyclictest0-21swapper/121:20:181
13327991614,1cyclictest0-21swapper/120:05:121
1332799160,1cyclictest0-21swapper/123:45:211
1332799160,1cyclictest0-21swapper/122:35:151
1332799160,15cyclictest5627-21apache_accesses22:45:091
1332799160,15cyclictest4548-21/usr/sbin/munin19:50:121
1332799160,15cyclictest0-21swapper/119:35:141
13325991614,1cyclictest0-21swapper/023:25:150
13325991614,1cyclictest0-21swapper/023:06:330
13325991614,1cyclictest0-21swapper/021:15:010
13325991614,1cyclictest0-21swapper/020:15:140
13325991613,2cyclictest3981-21H222:10:210
13325991613,2cyclictest3072-21ls22:40:130
1332599160,1cyclictest0-21swapper/019:50:170
1332599160,15cyclictest30915-21expr23:30:140
1332599160,15cyclictest11333-21ntp_kernel_pll_20:00:190
1332599160,15cyclictest0-21swapper/020:10:150
1332599160,15cyclictest0-21swapper/020:05:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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