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2026-08-21 - 12:23
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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 Aug 21, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19760992818,10cyclictest0-21swapper/120:00:211
1976099250,24cyclictest0-21swapper/122:45:141
1976199230,5cyclictest0-21swapper/222:57:062
19759992218,3cyclictest0-21swapper/021:56:410
1976199210,20cyclictest843-21systemd-network20:11:442
1976099212,16cyclictest0-21swapper/120:00:011
19760992112,0cyclictest0-21swapper/123:06:151
1975999210,3cyclictest0-21swapper/000:25:460
1976199202,17cyclictest0-21swapper/219:32:422
1976099202,17cyclictest0-21swapper/121:30:011
1975999203,16cyclictest0-21swapper/021:07:230
1975999200,19cyclictest843-21systemd-network00:35:040
1975999200,19cyclictest843-21systemd-network00:35:040
1975999200,18cyclictest27061-21munin-run20:20:000
1975999200,18cyclictest0-21swapper/019:22:220
1976199193,15cyclictest0-21swapper/223:55:522
19761991914,3cyclictest0-21swapper/221:25:212
1976199190,4cyclictest9698-21ntp_kernel_pll_23:35:202
1976099192,16cyclictest1856-21systemd-udevd22:08:521
19760991916,2cyclictest7425-21seq21:38:511
19760991916,2cyclictest3630-21cut21:30:191
19760991913,5cyclictest870-21systemd-logind20:46:521
1975999196,7cyclictest4100-21H222:10:210
1975999193,15cyclictest12448-21expr23:40:180
1975999193,15cyclictest0-21swapper/022:20:130
1975999193,15cyclictest0-21swapper/020:37:510
1975999192,2cyclictest12167-21grep19:50:190
19759991917,1cyclictest9-21ksoftirqd/022:10:010
19759991917,1cyclictest0-21swapper/023:25:130
19759991914,5cyclictest0-21swapper/021:15:000
1975999191,17cyclictest0-21swapper/000:22:260
1975999190,3cyclictest0-21swapper/000:30:410
1975999190,1cyclictest0-21swapper/021:52:160
1975999190,16cyclictest3979-21H222:10:210
1976199182,15cyclictest15858-21missed_timers20:55:172
1976199182,15cyclictest0-21swapper/222:47:292
1976199182,15cyclictest0-21swapper/220:34:412
19761991815,2cyclictest17917-21pzem_power20:00:202
19761991815,1cyclictest0-21swapper/200:00:162
19761991814,3cyclictest781-21sshd00:17:092
19761991814,1cyclictest0-21swapper/220:53:082
1976199181,1cyclictest94042chrt00:32:092
1976199181,16cyclictest5847-21chrt20:38:222
1976199181,15cyclictest0-21swapper/220:40:142
1976199180,3cyclictest14828-21/usr/sbin/munin23:45:182
1976199180,17cyclictest9490-21nfsd419:45:172
1976199180,17cyclictest3983-21H222:10:212
1976199180,17cyclictest13059-21sort23:40:212
1976199180,17cyclictest0-21swapper/221:15:222
1976099182,1cyclictest3987-21H222:10:211
1976099182,15cyclictest0-21swapper/100:20:141
19760991816,1cyclictest0-21swapper/122:41:271
19760991814,1cyclictest0-21swapper/120:25:181
1976099180,3cyclictest3058-21rs:main1
1976099180,3cyclictest0-21swapper/120:54:431
1976099180,16cyclictest21708-21nfsd419:10:171
1975999182,2cyclictest12999-21sed20:50:170
1975999182,15cyclictest5371-21sed22:30:170
1975999182,15cyclictest31825-21which00:15:170
1975999182,15cyclictest0-21swapper/023:58:550
1975999182,15cyclictest0-21swapper/023:05:130
19759991816,1cyclictest0-21swapper/021:50:000
19759991816,1cyclictest0-21swapper/019:35:110
19759991815,2cyclictest9529-21grep23:35:190
19759991815,2cyclictest8760-21cut21:40:150
19759991815,2cyclictest6817-21ntpq19:40:170
1975999181,2cyclictest8967-21sed20:45:010
1975999181,2cyclictest7737-21chrt23:33:040
1975999181,2cyclictest3450-21gsd-color00:05:000
1975999181,2cyclictest0-21swapper/020:45:180
1975999181,16cyclictest455-21plymouthd22:47:590
1975999181,16cyclictest0-21swapper/020:32:470
1975999180,2cyclictest32552-21awk20:30:010
1975999180,2cyclictest0-21swapper/023:10:130
1975999180,1cyclictest0-21swapper/020:55:130
1975999180,17cyclictest9522-21find22:39:010
1975999180,16cyclictest0-21swapper/019:25:180
1975999180,16cyclictest0-21swapper/019:25:180
1975999180,15cyclictest3989-21H222:10:210
1976199172,1cyclictest0-21swapper/223:10:112
19761991715,1cyclictest3981-21H222:10:212
19761991715,1cyclictest0-21swapper/222:50:212
19761991715,1cyclictest0-21swapper/221:41:482
19761991714,2cyclictest6250-21sed21:35:172
19761991714,2cyclictest26446-21latency22:10:172
19761991714,2cyclictest24917-21store00:05:012
19761991714,2cyclictest21197-21grep23:00:132
19761991714,2cyclictest11053-21apt-key21:45:032
19761991714,2cyclictest1079-21cups-browsed23:30:212
1976199170,3cyclictest0-21swapper/223:50:192
1976199170,2cyclictest9400-21grep20:45:142
1976199170,2cyclictest9276-21bounce22:37:302
1976199170,2cyclictest5232-21if_eno122:30:152
1976199170,2cyclictest31735-21idleruntime22:20:162
1976199170,2cyclictest31614-21nvmesmart_nvme020:25:182
1976199170,2cyclictest29829-21nfsd421:20:182
1976199170,2cyclictest19452-21https22:00:012
1976199170,2cyclictest1377-21lxd22:42:522
1976199170,16cyclictest4545-21latency_hist00:25:002
1976199170,16cyclictest4193-21nfsd423:25:172
1976199170,16cyclictest3985-21H222:10:212
1976199170,16cyclictest3979-21H222:10:212
1976199170,16cyclictest32748-21fschecks_count23:20:132
1976199170,16cyclictest3003-21pzem_energy22:25:212
1976199170,16cyclictest29521-21expr22:15:172
1976199170,16cyclictest28239-21cron19:25:042
1976199170,16cyclictest28239-21cron19:25:032
1976199170,16cyclictest25275-21pzem_current23:05:202
1976199170,16cyclictest15943-21munin-run20:00:012
1976199170,16cyclictest1290-21kerneloops19:20:452
1976199170,16cyclictest10872-21/usr/sbin/munin19:50:152
1976199170,15cyclictest0-21swapper/221:05:182
19760991715,1cyclictest0-21swapper/123:41:581
19760991715,1cyclictest0-21swapper/100:30:241
19760991714,2cyclictest3416-21qmgr21:07:301
19760991714,2cyclictest26830-21nfsd422:10:191
19760991714,2cyclictest20799-21switchtime20:05:221
19760991714,2cyclictest15892-21snapd22:52:581
19760991714,2cyclictest1523-21lxd19:28:521
19760991714,2cyclictest1523-21lxd19:28:521
19760991714,2cyclictest11417-21cpuspeed_turbos21:45:141
19760991714,2cyclictest1048-21nfsd423:20:171
19760991713,3cyclictest3976-21H222:10:211
1976099171,15cyclictest32618-21processes00:15:211
1976099171,15cyclictest0-21swapper/120:30:211
1976099170,2cyclictest8902-21http_loadtime19:45:141
1976099170,2cyclictest5819-21nfsd400:25:181
1976099170,2cyclictest3989-21H222:10:211
1976099170,2cyclictest3987-21H222:10:211
1976099170,2cyclictest31669-21cron23:20:001
1976099170,2cyclictest26311-21expr21:15:151
1976099170,2cyclictest2433-21expr19:35:111
1976099170,2cyclictest17698-21latency21:55:161
1976099170,1cyclictest4035-21H222:10:211
1976099170,1cyclictest0-21swapper/120:15:241
1976099170,16cyclictest8529-21ntpq22:35:161
1976099170,16cyclictest3989-21H222:10:211
1976099170,16cyclictest3985-21H222:10:211
1976099170,16cyclictest3979-21H222:10:211
1976099170,16cyclictest3450-21gsd-color23:00:001
1976099170,16cyclictest20898-21uname23:55:211
1976099170,16cyclictest18133-21fschecks_count21:00:141
1976099170,16cyclictest15068-21expr20:55:131
1976099170,16cyclictest14504-21snapd22:27:581
1976099170,16cyclictest0-21swapper/120:10:161
1976099170,15cyclictest3985-21H222:10:211
19759991714,2cyclictest3450-21gsd-color19:15:540
19759991714,2cyclictest31894-21sort19:30:130
19759991714,2cyclictest28567-21cat22:15:130
19759991714,2cyclictest22082-21cat20:10:130
19759991714,2cyclictest19742-21apt-config22:00:010
19759991714,2cyclictest17501-21find21:00:110
19759991714,2cyclictest13963-21grep23:45:150
19759991714,2cyclictest13584-21chrt19:55:020
1975999171,1cyclictest0-21swapper/023:50:140
1975999171,15cyclictest25713-21cpuspeed_turbos22:10:150
1975999171,15cyclictest0-21swapper/021:25:200
1975999171,15cyclictest0-21swapper/019:45:160
1975999170,2cyclictest5284-21awk21:35:140
1975999170,2cyclictest32099-21/usr/sbin/munin23:20:110
1975999170,2cyclictest29632-21cstates23:15:140
1975999170,2cyclictest2455-21cstates21:30:140
1975999170,2cyclictest21034-21chrt23:00:110
1975999170,2cyclictest16461-21grep20:00:140
1975999170,1cyclictest0-21swapper/022:55:150
1975999170,16cyclictest28934-21expr21:20:130
1975999170,16cyclictest25853-21find21:15:120
1975999170,16cyclictest20334-21gpgv19:10:020
1975999170,16cyclictest1909-21cstates22:25:140
1975999170,16cyclictest15528-21chrt22:50:110
1975999170,16cyclictest11722-21cat22:40:200
19761991614,1cyclictest0-21swapper/221:50:032
19761991614,1cyclictest0-21swapper/221:10:152
19761991614,1cyclictest0-21swapper/221:01:012
19761991614,1cyclictest0-21swapper/220:20:282
19761991614,1cyclictest0-21swapper/219:15:152
19761991614,1cyclictest0-21swapper/200:10:172
19761991613,2cyclictest24825-21cpuspeed_turbos20:15:122
1976199161,1cyclictest0-21swapper/221:32:322
1976199160,2cyclictest16700-21cat21:55:092
1976199160,1cyclictest20316-21dpkg19:10:012
1976199160,15cyclictest0-21swapper/219:40:122
1976199160,15cyclictest0-21swapper/200:35:112
1976199160,15cyclictest0-21swapper/200:35:102
19760991614,1cyclictest10771-21which00:35:161
19760991614,1cyclictest10771-21which00:35:161
19760991614,1cyclictest0-21swapper/123:25:131
19760991614,1cyclictest0-21swapper/122:31:041
19760991614,1cyclictest0-21swapper/121:50:141
19760991613,2cyclictest27323-21fschecks_time23:10:141
1976099160,2cyclictest28006-21postgres19:21:591
1976099160,15cyclictest8110-21pzem_energy20:40:201
1976099160,15cyclictest6323-21http_loadtime23:30:141
1976099160,15cyclictest3981-21H222:10:211
1976099160,15cyclictest28618-21apache_accesses21:20:111
1976099160,15cyclictest24962-21sed19:15:221
1976099160,15cyclictest15350-21cat23:45:191
1976099160,15cyclictest0-21swapper/122:00:001
1976099160,15cyclictest0-21swapper/121:40:101
1976099160,15cyclictest0-21swapper/119:30:121
1976099160,15cyclictest0-21swapper/100:00:191
1976199150,1cyclictest0-21swapper/223:15:152
1976099150,15cyclictest0-21swapper/122:15:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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