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2026-06-19 - 15:03
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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 Fri Jun 19, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27388992417,6cyclictest0-21swapper/000:35:000
2738899233,19cyclictest0-21swapper/000:30:010
27389992219,2cyclictest13854-21if_lxdbr021:35:161
2738899220,21cyclictest870-21systemd-logind21:23:510
2739099212,18cyclictest8209-21fschecks_time21:25:172
2738999210,18cyclictest0-21swapper/119:49:141
2738899212,18cyclictest101rcuc/023:06:000
27388992117,3cyclictest547-21munin-run21:15:010
2739099204,2cyclictest8253-21processes22:20:202
2738999206,12cyclictest0-21swapper/100:30:161
2738999203,2cyclictest4402-21run-parts20:20:191
2739099192,1cyclictest0-21swapper/200:11:452
2739099190,1cyclictest0-21swapper/223:30:152
2739099190,18cyclictest0-21swapper/223:20:142
2739099190,15cyclictest0-21swapper/221:51:042
27389991917,1cyclictest0-21swapper/121:28:291
2738999190,3cyclictest0-21swapper/123:27:151
2738899194,1cyclictest0-21swapper/000:00:130
27388991917,1cyclictest101rcuc/019:17:060
27388991911,5cyclictest0-21swapper/023:25:160
2738899190,16cyclictest3989-21H222:10:210
27390991814,3cyclictest14496-21snapd00:30:282
27390991814,2cyclictest0-21swapper/200:15:172
2739099181,2cyclictest3976-21H222:10:212
2739099181,16cyclictest4099-21H222:10:212
2739099180,3cyclictest18361-21php7.023:39:002
2739099180,2cyclictest3979-21H222:10:212
2739099180,2cyclictest3979-21H222:10:212
2738999182,15cyclictest0-21swapper/123:15:161
2738999182,15cyclictest0-21swapper/122:11:061
27389991815,2cyclictest0-21swapper/120:56:031
27389991814,3cyclictest5601-21lxd20:50:491
27389991814,3cyclictest0-21swapper/119:16:151
2738999181,2cyclictest1708-21expr00:05:151
2738999181,16cyclictest5325-21cat00:10:141
2738999181,16cyclictest24846-21gzip23:50:021
2738999180,3cyclictest8556-21grep00:15:181
2738999180,17cyclictest455-21plymouthd23:10:131
2738999180,16cyclictest0-21swapper/122:00:001
27388991817,1cyclictest29154-21kworker/0:220:33:420
2738899181,16cyclictest31493-21chrt20:13:110
2738899181,14cyclictest111rcu_preempt19:57:210
2738899180,16cyclictest26027-21needreboot21:00:180
2738899180,16cyclictest26027-21needreboot21:00:170
2738899180,16cyclictest24733-21dpkg23:50:020
2738899180,16cyclictest22620-21anvil22:50:120
2738899180,15cyclictest4099-21H222:10:210
2739099172,1cyclictest15854-21kernelversion22:35:172
2739099172,1cyclictest0-21swapper/219:19:512
27390991715,1cyclictest0-21swapper/222:01:392
27390991715,1cyclictest0-21swapper/219:45:152
27390991714,2cyclictest6785-21nfsd420:25:172
27390991714,2cyclictest3991-21H222:10:212
27390991714,2cyclictest3247-21cat21:15:212
27390991714,2cyclictest29270-21/usr/sbin/munin20:10:152
27390991714,2cyclictest21439-21if_lxdbr022:45:152
27390991714,2cyclictest19027-21apt-get21:45:132
27390991714,2cyclictest15527-21awk20:40:202
27390991714,2cyclictest12676-21expr22:30:152
27390991714,2cyclictest11669-21fschecks_time20:35:152
27390991713,3cyclictest455-21plymouthd20:55:132
27390991713,3cyclictest10001-21/usr/sbin/munin00:20:122
27390991713,3cyclictest0-21swapper/219:12:312
2739099170,2cyclictest3707-21master19:36:262
2739099170,2cyclictest3433-21nfsd423:10:172
2739099170,2cyclictest25993-21/usr/sbin/munin22:55:202
2739099170,2cyclictest2293-21nvmesmart_nvme019:20:172
2739099170,2cyclictest20793-21nvmesmart_nvme020:50:202
2739099170,1cyclictest3989-21H222:10:212
2739099170,16cyclictest5732-21forks23:15:132
2739099170,16cyclictest3983-21H222:10:212
2739099170,16cyclictest32489-21expr20:15:132
2739099170,16cyclictest3197-21cstates20:20:132
2739099170,16cyclictest3053-21systemd-logind23:00:512
2739099170,16cyclictest28325-21sed20:05:232
2739099170,16cyclictest24544-21python323:50:012
2739099170,16cyclictest23895-21fschecks_count22:50:152
2739099170,16cyclictest22126-21nfsd419:55:162
2739099170,16cyclictest19908-21kernelversion23:40:182
2739099170,16cyclictest18777-21chrt20:47:412
2739099170,16cyclictest1856-21systemd-udevd21:38:512
2739099170,16cyclictest1590-21fschecks_time22:10:142
2739099170,16cyclictest10152-21fschecks_time22:25:142
27389991715,1cyclictest11683-21grep20:35:151
27389991715,1cyclictest0-21swapper/121:50:121
27389991714,2cyclictest8828-21sed19:30:221
27389991714,2cyclictest6913-21tr22:20:141
27389991714,2cyclictest586-21ls20:15:161
27389991714,2cyclictest31803-21latency00:00:181
27389991714,2cyclictest28640-21memory21:05:171
27389991714,2cyclictest28090-21cat23:55:141
27389991714,2cyclictest17974-21grep20:45:201
27389991714,2cyclictest16073-21apache_volume23:35:121
27389991714,2cyclictest15143-21sed23:30:221
27389991714,2cyclictest11439-21netstat21:30:191
2738999171,15cyclictest29011-21nfsd419:10:171
2738999171,15cyclictest19955-21timerandwakeup00:35:221
2738999170,2cyclictest5586-21run-parts22:15:211
2738999170,2cyclictest5586-21run-parts22:15:201
2738999170,2cyclictest5246-21irqstats19:25:161
2738999170,2cyclictest4099-21H222:10:211
2738999170,2cyclictest31925-21/usr/sbin/munin21:10:211
2738999170,2cyclictest28676-21find20:09:001
2738999170,2cyclictest21669-21runrttasks23:45:061
2738999170,2cyclictest18491-21expr19:50:131
2738999170,2cyclictest14933-21apache_volume22:35:131
2738999170,2cyclictest1377-21lxd00:22:351
2738999170,16cyclictest8700-21expr20:30:141
2738999170,16cyclictest5573-21apache_processe20:25:121
2738999170,16cyclictest5419-21cat21:20:161
2738999170,16cyclictest3719-21apt-config19:25:011
2738999170,16cyclictest31921-21expr23:05:151
2738999170,16cyclictest31117-21latency_hist23:05:011
2738999170,16cyclictest29670-21cstates20:10:131
2738999170,16cyclictest26696-21fschecks_time22:55:161
2738999170,16cyclictest23670-21apache_accesses20:00:101
2738999170,16cyclictest19607-21timerandwakeup22:40:211
2738999170,16cyclictest12783-21cpu00:25:141
2738999170,16cyclictest0-21swapper/119:59:071
2738899172,1cyclictest9-21ksoftirqd/022:45:210
27388991716,1cyclictest9-21ksoftirqd/019:10:130
27388991716,1cyclictest101rcuc/021:52:240
27388991715,1cyclictest9-21ksoftirqd/019:25:170
27388991715,1cyclictest0-21swapper/021:05:170
27388991714,2cyclictest5031-21cstates00:10:140
27388991714,2cyclictest26280-21ntp_states21:55:210
27388991714,2cyclictest15349-21cat22:35:140
27388991714,2cyclictest1521-21lxd20:18:500
27388991714,2cyclictest14935-21taskset21:35:260
27388991714,1cyclictest0-21swapper/023:10:140
2738899171,1cyclictest0-21swapper/021:40:010
2738899171,15cyclictest9-21ksoftirqd/023:55:210
2738899171,15cyclictest9-21ksoftirqd/023:45:160
2738899171,15cyclictest9-21ksoftirqd/022:00:120
2738899171,15cyclictest9-21ksoftirqd/020:45:240
2738899171,15cyclictest26015-21apache_processe22:55:120
2738899170,2cyclictest9655-21chrt21:27:520
2738899170,2cyclictest7419-21sshd23:19:540
2738899170,2cyclictest23830-21sed20:55:210
2738899170,2cyclictest2221-21irqstats21:15:170
2738899170,2cyclictest17299-21cut23:35:190
2738899170,2cyclictest16360-21awk19:45:150
2738899170,2cyclictest10094-21fschecks_count22:25:130
2738899170,1cyclictest0-21swapper/000:16:110
2738899170,16cyclictest7564-21iwlist22:20:160
2738899170,16cyclictest6972-21ntp_states20:25:180
2738899170,16cyclictest5779-21ls22:15:210
2738899170,16cyclictest5779-21ls22:15:210
2738899170,16cyclictest3954-21VM22:10:210
2738899170,16cyclictest2240-21ntpq19:20:170
2738899170,16cyclictest1930-21hddtemp_smartct00:05:170
2738899170,16cyclictest19061-21cat23:40:140
2738899170,16cyclictest1508-21df_inode22:10:150
2738899170,16cyclictest14506-21snapd20:00:570
2738899170,16cyclictest11215-21cut20:35:130
2738899170,16cyclictest10989-21idleruntime21:30:150
2738899170,15cyclictest3979-21H222:10:210
27390991614,1cyclictest271rcuc/221:10:172
27390991614,1cyclictest0-21swapper/222:05:122
27390991614,1cyclictest0-21swapper/221:40:142
27390991614,1cyclictest0-21swapper/221:00:142
27390991614,1cyclictest0-21swapper/221:00:142
27390991613,2cyclictest18746-21uname22:40:162
27390991613,2cyclictest18486-21cat19:50:122
2739099160,1cyclictest25200-21expr21:55:132
2739099160,1cyclictest10875-21fschecks_count21:30:142
2739099160,1cyclictest0-21swapper/223:05:112
2739099160,1cyclictest0-21swapper/220:30:122
2739099160,15cyclictest5924-21pzem_power21:20:192
2739099160,15cyclictest4545-21cupsd19:31:262
2739099160,15cyclictest27719-21cpuspeed_turbos21:05:152
2739099160,15cyclictest24582-21uname20:00:152
2739099160,15cyclictest0-21swapper/222:15:122
2739099160,15cyclictest0-21swapper/222:15:112
27389991614,1cyclictest0-21swapper/122:45:041
27389991614,1cyclictest0-21swapper/122:25:101
27389991614,1cyclictest0-21swapper/121:15:151
27389991614,1cyclictest0-21swapper/121:00:231
27389991614,1cyclictest0-21swapper/121:00:221
27389991614,1cyclictest0-21swapper/119:40:151
2738999160,2cyclictest16152-21cnf-update-db21:40:011
2738999160,15cyclictest28810-21grep22:00:161
2738999160,15cyclictest23554-21cstates22:50:131
2738999160,15cyclictest19596-21df21:45:141
2738999160,15cyclictest18949-21taskset23:40:081
2738999160,15cyclictest14294-21ls20:40:121
2738999160,15cyclictest0-21swapper/122:30:141
2738999160,15cyclictest0-21swapper/122:05:161
27388991614,1cyclictest101rcuc/022:05:130
27388991614,1cyclictest0-21swapper/022:44:110
27388991614,1cyclictest0-21swapper/020:20:110
27388991614,1cyclictest0-21swapper/019:40:080
27388991614,1cyclictest0-21swapper/019:30:120
27388991613,2cyclictest18521-21expr19:50:120
2738899161,14cyclictest101rcuc/020:05:170
2738899161,14cyclictest0-21swapper/019:35:560
2738899160,15cyclictest9-21ksoftirqd/020:50:160
2738899160,15cyclictest101rcuc/022:30:180
2738899160,15cyclictest0-21swapper/023:20:040
2738899160,15cyclictest0-21swapper/021:45:170
2738899160,15cyclictest0-21swapper/020:40:140
27390991514,1cyclictest24235-21kworker/2:219:40:062
2739099150,0cyclictest0-21swapper/219:25:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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