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2026-03-14 - 15:00
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Sat Mar 14, 2026 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
546299230,22cyclictest0-21swapper/120:13:421
5467992214,4cyclictest0-21swapper/220:30:012
546299220,19cyclictest4025-21changes_open22:10:211
545899224,3cyclictest0-21swapper/021:22:590
545899220,17cyclictest0-21swapper/022:00:150
546799212,18cyclictest0-21swapper/219:55:022
546299212,12cyclictest0-21swapper/122:29:261
5462992112,0cyclictest0-21swapper/120:56:061
546799202,17cyclictest0-21swapper/219:27:522
5467992017,2cyclictest3950-21C222:10:212
546799200,1cyclictest0-21swapper/219:38:422
5462992016,3cyclictest0-21swapper/121:51:591
5462992011,0cyclictest0-21swapper/121:15:141
545899204,15cyclictest0-21swapper/019:40:560
545899202,17cyclictest0-21swapper/022:34:030
545899202,17cyclictest0-21swapper/019:17:260
545899202,17cyclictest0-21swapper/019:17:250
546799193,1cyclictest0-21swapper/220:01:402
546799193,15cyclictest0-21swapper/219:42:502
546799193,15cyclictest0-21swapper/200:39:312
546799192,16cyclictest6962-21smartctl21:05:172
5467991917,2cyclictest0-21swapper/221:00:152
5467991917,2cyclictest0-21swapper/221:00:152
5467991917,1cyclictest10667-21cut22:10:132
5467991913,5cyclictest0-21swapper/223:05:162
546799190,17cyclictest3987-21H222:10:212
546299194,1cyclictest0-21swapper/122:07:531
5462991917,1cyclictest0-21swapper/119:38:481
545899193,15cyclictest0-21swapper/019:25:160
545899192,16cyclictest17497-21seq22:21:340
5458991913,1cyclictest0-21swapper/022:35:470
545899190,18cyclictest0-21swapper/021:32:280
545899190,17cyclictest1490-21snapd00:05:120
545899190,16cyclictest3991-21H222:10:210
546799182,15cyclictest132712chrt19:21:412
5467991816,1cyclictest18070-21date22:25:002
5467991815,2cyclictest23122-21chrt22:33:542
5467991815,2cyclictest0-21swapper/223:15:102
5467991814,3cyclictest14016-21nfsd420:20:172
5467991814,2cyclictest18359-21nfsd421:25:182
546799181,16cyclictest19519-21nfsd422:25:182
546799181,16cyclictest1526-21lxd20:16:502
546799180,3cyclictest3304-21awk22:55:142
546799180,2cyclictest8182-21sed22:05:162
546799180,17cyclictest5761-21nfsd420:05:172
546799180,17cyclictest30414-21sed20:50:172
5462991816,1cyclictest0-21swapper/121:34:481
5462991815,2cyclictest26244-21nfsd419:45:171
5462991815,2cyclictest14711-21cat23:15:111
5462991814,3cyclictest3989-21H222:10:211
546299181,2cyclictest5835-21proc_pri22:00:191
546299181,16cyclictest0-21swapper/100:15:101
546299180,3cyclictest24083-21tr20:40:131
546299180,1cyclictest0-21swapper/123:55:141
546299180,17cyclictest4035-21H222:10:211
545899182,1cyclictest4722sleep019:56:210
545899182,15cyclictest136212chrt21:16:470
5458991815,1cyclictest16549-21cpuspeed_turbos00:15:100
545899181,2cyclictest11222-21apache_accesses19:20:090
5458991812,5cyclictest0-21swapper/019:35:160
545899181,15cyclictest0-21swapper/020:11:310
545899180,3cyclictest863-21avahi-daemon23:15:180
545899180,3cyclictest2007-21systemd-journal22:16:580
545899180,15cyclictest0-21swapper/019:32:160
546799172,1cyclictest0-21swapper/221:35:102
5467991715,1cyclictest302742sleep221:47:562
5467991715,1cyclictest0-21swapper/220:44:102
5467991714,2cyclictest9673-21date20:15:012
5467991714,2cyclictest8582-21cpuspeed_turbos19:15:132
5467991714,2cyclictest8582-21cpuspeed_turbos19:15:132
5467991714,2cyclictest6273-21pzem_power23:55:192
5467991714,2cyclictest4338-21/usr/sbin/munin22:00:102
5467991714,2cyclictest32212-21ntp_kernel_err21:50:172
5467991714,2cyclictest32124-21nfsd419:55:192
5467991714,2cyclictest25539-21expr19:45:122
5467991714,2cyclictest14224-21/usr/sbin/munin22:15:212
5467991714,2cyclictest11478-21expr23:10:122
546799170,2cyclictest25717-21sshd22:37:002
546799170,2cyclictest1526-21lxd21:22:502
546799170,2cyclictest11428-21nfsd400:05:162
546799170,1cyclictest0-21swapper/221:30:142
546799170,16cyclictest5982-21cpuspeed_turbos19:10:132
546799170,16cyclictest30668-21ntp_offset22:45:212
546799170,16cyclictest28360-21cut23:40:132
546799170,16cyclictest26680-21expr21:40:182
546799170,16cyclictest26115-21kernelversion23:35:172
546799170,16cyclictest26115-21kernelversion23:35:162
546799170,16cyclictest23190-21tr00:25:172
546799170,16cyclictest2256-21expr23:50:132
546799170,16cyclictest21520-21/usr/sbin/munin20:35:132
546799170,16cyclictest19754-21pzem20:30:192
546799170,16cyclictest19651-21expr00:20:152
546799170,16cyclictest12035-21expr21:15:132
546799170,16cyclictest0-21swapper/219:30:132
546799170,15cyclictest0-21swapper/222:51:152
5462991715,1cyclictest0-21swapper/120:46:571
5462991715,1cyclictest0-21swapper/100:30:121
5462991714,2cyclictest399-20systemd-journal23:39:011
5462991714,2cyclictest399-20systemd-journal23:39:001
5462991714,2cyclictest2859-21expr21:00:141
5462991714,2cyclictest2859-21expr21:00:131
5462991714,2cyclictest13650-21munin-run23:15:001
5462991714,1cyclictest0-21swapper/121:06:261
546299171,1cyclictest0-21swapper/123:00:141
546299171,15cyclictest0-21swapper/120:35:211
546299170,2cyclictest28494-21expr21:45:151
546299170,2cyclictest19031-21chrt23:21:171
546299170,2cyclictest16034-21chrt19:27:081
546299170,2cyclictest14577-21sed22:15:211
546299170,2cyclictest10986-21munin-plugin-st19:20:011
546299170,2cyclictest10986-21munin-plugin-st19:20:011
546299170,16cyclictest799-21latency_hist20:00:011
546299170,16cyclictest455-21plymouthd22:40:121
546299170,16cyclictest399-20systemd-journal20:00:551
546299170,16cyclictest3985-21H222:10:211
546299170,16cyclictest30362-21sort20:50:171
546299170,16cyclictest27464-21grep00:35:131
546299170,16cyclictest23039-21expr21:35:131
546299170,16cyclictest22947-21chrt22:31:361
546299170,16cyclictest22907-21cat23:30:121
546299170,16cyclictest14355-21sendmail_mailtr20:20:191
546299170,16cyclictest11524-21latency_hist21:15:021
546299170,16cyclictest10401-21cut00:05:131
546299170,16cyclictest10000-21/usr/sbin/munin20:15:141
546299170,16cyclictest0-21swapper/121:21:241
545899172,1cyclictest0-21swapper/000:35:160
5458991715,1cyclictest0-21swapper/023:40:200
5458991715,1cyclictest0-21swapper/021:40:100
5458991714,2cyclictest8626-21pzem_energy22:05:200
5458991714,2cyclictest30512-21python323:45:030
5458991714,2cyclictest30491-21munin-run19:55:010
5458991714,2cyclictest27809-21awk20:45:160
5458991714,2cyclictest22125-21/usr/sbin/munin20:35:160
5458991714,2cyclictest1348-21lxd22:56:330
545899171,1cyclictest276212chrt23:39:260
545899171,1cyclictest276212chrt23:39:260
545899171,15cyclictest18232sleep020:57:080
545899171,15cyclictest18169-21/usr/sbin/munin22:25:160
545899171,15cyclictest0-21swapper/023:30:140
5458991711,3cyclictest0-21swapper/000:30:080
545899170,2cyclictest25348-21expr19:45:130
545899170,2cyclictest24831-21sort21:39:020
545899170,2cyclictest13186-21chrt23:11:480
545899170,16cyclictest9385-21expr21:10:130
545899170,16cyclictest5680-21cpuspeed_turbos21:05:110
545899170,16cyclictest29150-21cut22:45:010
545899170,16cyclictest25131-21grep20:40:180
545899170,16cyclictest22491-21grep00:25:150
545899170,16cyclictest1870-21cut23:50:130
545899170,16cyclictest18227-21nfsd423:20:160
545899170,16cyclictest13287-21cat20:20:120
545899170,16cyclictest1310-21expr22:50:200
545899170,16cyclictest10101-21timerwakeupswit23:05:210
545899170,16cyclictest0-21swapper/020:25:130
545899170,16cyclictest0-21swapper/000:20:230
5467991614,1cyclictest5634-21cpuspeed_turbos23:00:112
5467991614,1cyclictest0-21swapper/223:45:032
5467991614,1cyclictest0-21swapper/223:30:122
5467991614,1cyclictest0-21swapper/223:20:122
5467991614,1cyclictest0-21swapper/200:30:082
5467991614,1cyclictest0-21swapper/200:10:152
5467991614,1cyclictest0-21swapper/200:00:112
5467991613,2cyclictest17721-21ntpq00:15:172
5467991613,2cyclictest1395-21cpuspeed_turbos21:55:132
546799160,1cyclictest0-21swapper/220:57:042
546799160,15cyclictest0-21swapper/223:25:152
546799160,15cyclictest0-21swapper/222:40:122
5462991614,1cyclictest17648-21fschecks_count21:25:141
5462991614,1cyclictest0-21swapper/122:50:381
5462991614,1cyclictest0-21swapper/122:45:231
5462991614,1cyclictest0-21swapper/122:10:001
5462991614,1cyclictest0-21swapper/100:25:121
5462991613,2cyclictest3181-21fschecks_count22:55:151
5462991613,2cyclictest28737-21grep23:40:141
546299160,2cyclictest7478-21grep19:10:221
546299160,2cyclictest2214-21expr23:50:131
546299160,1cyclictest5804-21ntpq20:05:181
546299160,1cyclictest0-21swapper/120:30:131
546299160,1cyclictest0-21swapper/100:20:191
546299160,1cyclictest0-21swapper/100:10:121
546299160,1cyclictest0-21swapper/100:00:121
546299160,15cyclictest8338-21grep23:05:141
546299160,15cyclictest26417-21sed21:40:161
546299160,15cyclictest0-21swapper/123:45:121
546299160,15cyclictest0-21swapper/123:25:131
546299160,15cyclictest0-21swapper/122:35:141
546299160,15cyclictest0-21swapper/120:25:081
546299160,15cyclictest0-21swapper/119:20:131
5458991614,1cyclictest0-21swapper/020:00:190
5458991614,1cyclictest0-21swapper/000:10:130
5458991613,2cyclictest2237-21latency21:55:150
545899160,2cyclictest2864-21expr21:00:140
545899160,2cyclictest2864-21expr21:00:130
545899160,1cyclictest29858-21df22:45:160
545899160,1cyclictest0-21swapper/022:10:150
545899160,15cyclictest68352sleep023:57:200
545899160,15cyclictest0-21swapper/023:30:000
545899160,15cyclictest0-21swapper/021:45:130
545899160,15cyclictest0-21swapper/021:25:210
545899160,15cyclictest0-21swapper/020:50:180
545899160,15cyclictest0-21swapper/020:30:120
545899160,15cyclictest0-21swapper/020:15:140
545899160,15cyclictest0-21swapper/000:00:100
545899160,14cyclictest0-21swapper/023:00:150
5458991513,1cyclictest0-21swapper/021:50:130
5458991513,1cyclictest0-21swapper/020:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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