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2026-03-19 - 07:12
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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 Thu Mar 19, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2453399230,22cyclictest843-21systemd-network20:48:331
2453499220,21cyclictest843-21systemd-network22:19:482
24533992210,11cyclictest0-21swapper/100:10:121
2453399220,18cyclictest0-21swapper/100:15:141
2453499216,14cyclictest28-21ksoftirqd/221:39:402
2453499210,1cyclictest28-21ksoftirqd/221:09:312
2453299212,2cyclictest27177-21tr22:05:130
2453299210,20cyclictest870-21systemd-logind22:58:510
2453499200,19cyclictest843-21systemd-network19:56:282
2453499200,19cyclictest0-21swapper/222:12:322
24534991918,1cyclictest28-21ksoftirqd/219:25:552
24534991914,4cyclictest0-21swapper/219:42:422
24534991914,4cyclictest0-21swapper/219:42:422
2453499190,3cyclictest13218-21proc_pri00:30:182
2453499190,16cyclictest30997-21nfsd400:05:162
2453399192,1cyclictest0-21swapper/120:04:361
2453399192,16cyclictest26452-21nfsd419:10:161
2453399192,11cyclictest0-21swapper/121:51:331
2453399192,11cyclictest0-21swapper/121:51:331
24533991916,2cyclictest28580-21expr21:10:141
2453299192,16cyclictest12802-21nfsd422:35:170
2453499182,1cyclictest4150-21http_loadtime22:20:152
2453499182,15cyclictest306042chrt21:14:492
2453499182,15cyclictest0-21swapper/223:40:162
24534991816,1cyclictest28-21ksoftirqd/222:35:142
24534991815,2cyclictest14320-21latency21:40:172
24534991815,2cyclictest10624-21sed20:35:222
24534991814,3cyclictest0-21swapper/200:00:392
2453499181,2cyclictest7237-21proxymap20:30:172
2453499181,2cyclictest7237-21proxymap20:30:162
2453399182,15cyclictest5760-21nfsd421:25:161
24533991817,1cyclictest21-21ksoftirqd/119:39:311
24533991814,3cyclictest0-21swapper/122:10:151
24533991813,3cyclictest19279-21sshd20:51:401
24532991815,2cyclictest1100-21snmpd22:14:270
24532991814,3cyclictest28335-21nfsd400:00:190
24532991814,3cyclictest0-21swapper/000:05:160
2453299181,17cyclictest0-21swapper/020:19:330
2453299180,3cyclictest32186-21processes19:20:200
2453299180,3cyclictest2007-21systemd-journal21:55:330
2453299180,17cyclictest4099-21H222:10:210
2453299180,17cyclictest13953-21nvmesmart_nvme019:45:190
24534991716,1cyclictest28-21ksoftirqd/223:10:152
24534991715,1cyclictest271rcuc/220:25:172
24534991715,1cyclictest271rcuc/219:20:192
24534991715,1cyclictest0-21swapper/221:30:172
24534991714,2cyclictest5331-21idleruntime21:25:152
24534991714,2cyclictest32459-21smartctl21:15:182
24534991714,2cyclictest28-21ksoftirqd/223:05:172
24534991714,2cyclictest25054-21sendmail_mailst20:05:202
24534991714,2cyclictest21186-21cut22:50:172
24534991714,2cyclictest1509-21chrt20:20:422
24534991714,2cyclictest0-21swapper/219:35:162
2453499171,2cyclictest13961-21chrt20:43:332
2453499171,15cyclictest28-21ksoftirqd/223:45:172
2453499171,15cyclictest28-21ksoftirqd/220:00:152
2453499171,15cyclictest17624-21expr20:50:142
2453499170,2cyclictest3989-21H222:10:212
2453499170,2cyclictest28004-21lxd00:26:352
2453499170,2cyclictest26876-21expr20:10:142
2453499170,2cyclictest20184-21nvmesmart_nvme021:50:182
2453499170,2cyclictest20184-21nvmesmart_nvme021:50:172
2453499170,2cyclictest16744-21snapd20:58:122
2453499170,2cyclictest1525-21lxd23:54:352
2453499170,16cyclictest843-21systemd-network23:55:102
2453499170,16cyclictest843-21systemd-network19:30:102
2453499170,16cyclictest6783-21expr00:20:132
2453499170,16cyclictest455-21plymouthd21:25:002
2453499170,16cyclictest3414-21master00:39:022
2453499170,16cyclictest3116-21pzem_voltage23:15:192
2453499170,16cyclictest30495-21ntp_offset20:15:192
2453499170,16cyclictest28-21ksoftirqd/223:20:132
2453499170,16cyclictest25966-21switchtime22:00:202
2453499170,16cyclictest18402-21grep22:45:182
24533991716,1cyclictest21-21ksoftirqd/119:41:471
24533991716,1cyclictest21-21ksoftirqd/119:41:461
24533991714,2cyclictest6599-21expr00:20:131
24533991714,2cyclictest5717-21/usr/sbin/munin19:30:201
24533991714,2cyclictest32260-21nfsd423:10:181
24533991714,2cyclictest28118-21cat21:10:011
24533991714,2cyclictest25032-21perf23:00:011
24533991714,2cyclictest16766-21snapd23:02:481
24533991714,2cyclictest1-21systemd00:00:211
2453399171,15cyclictest21-21ksoftirqd/120:20:481
2453399171,15cyclictest121482chrt23:33:031
2453399170,2cyclictest729-21chrt21:17:201
2453399170,2cyclictest24215-21chrt22:00:051
2453399170,2cyclictest2189-21/usr/sbin/munin19:25:171
2453399170,1cyclictest0-21swapper/122:05:131
2453399170,16cyclictest6610-21sshd23:21:531
2453399170,16cyclictest3979-21H222:10:211
2453399170,16cyclictest3976-21H222:10:211
2453399170,16cyclictest3053-21systemd-logind22:48:521
2453399170,16cyclictest17223-21strings21:45:181
2453399170,16cyclictest16749-21snapd21:00:181
2453399170,16cyclictest15815-21dpkg23:40:011
2453399170,16cyclictest14312-21cat21:40:171
2453399170,16cyclictest12919-21nfsd422:35:171
2453399170,16cyclictest10941-21smtp20:37:101
2453399170,15cyclictest31140-21nfsd400:05:161
2453399170,14cyclictest0-21swapper/120:19:331
2453299172,1cyclictest9-21ksoftirqd/022:20:500
24532991715,1cyclictest0-21swapper/023:50:180
24532991714,2cyclictest7350-21nfsd422:25:190
24532991714,2cyclictest3450-21gsd-color21:40:170
24532991714,2cyclictest26704-21ps19:10:170
24532991714,2cyclictest26150-21hddtemp_smartct23:00:140
24532991714,2cyclictest19357-21df_inode21:50:130
24532991714,2cyclictest19357-21df_inode21:50:130
24532991714,2cyclictest16755-21snapd22:15:470
24532991714,2cyclictest16745-21snapd21:37:480
24532991714,2cyclictest12934-21cpuspeed_turbos23:35:140
24532991714,1cyclictest0-21swapper/020:50:140
24532991714,1cyclictest0-21swapper/019:15:180
2453299171,15cyclictest0-21swapper/021:20:140
24532991711,3cyclictest0-21swapper/000:35:180
2453299170,2cyclictest21330-21expr20:00:150
2453299170,2cyclictest16830-21snapd21:00:180
2453299170,2cyclictest12373-21latency_hist19:45:010
2453299170,2cyclictest12373-21latency_hist19:45:000
2453299170,16cyclictest9816-21cat22:30:160
2453299170,16cyclictest3987-21H222:10:210
2453299170,16cyclictest3979-21H222:10:210
2453299170,16cyclictest28004-21lxd21:30:480
2453299170,16cyclictest26496-21missed_timers21:05:170
2453299170,16cyclictest2069-21systemd-udevd20:36:520
2453299170,16cyclictest17529-21sshd19:54:280
2453299170,16cyclictest16347-21sed22:40:210
2453299170,15cyclictest16744-21snapd22:00:110
24534991615,1cyclictest28-21ksoftirqd/220:45:132
24534991614,1cyclictest28-21ksoftirqd/222:30:112
24534991614,1cyclictest271rcuc/221:55:172
24534991614,1cyclictest271rcuc/219:50:142
24534991614,1cyclictest0-21swapper/223:30:162
24534991614,1cyclictest0-21swapper/221:45:172
24534991614,1cyclictest0-21swapper/219:45:172
24534991614,1cyclictest0-21swapper/219:15:142
24534991614,1cyclictest0-21swapper/219:10:122
24534991613,2cyclictest23859-21needreboot21:00:172
2453499160,1cyclictest271rcuc/223:25:222
2453499160,15cyclictest6822-21fschecks_time22:25:162
2453499160,15cyclictest28-21ksoftirqd/200:15:142
2453499160,15cyclictest271rcuc/222:05:202
2453499160,15cyclictest23595-21kernelversion22:55:162
2453499160,15cyclictest0-21swapper/223:35:222
2453499160,15cyclictest0-21swapper/222:40:112
24533991614,1cyclictest4721-21nfsd422:20:191
24533991614,1cyclictest3450-21gsd-color00:28:191
24533991614,1cyclictest29114-21latency23:05:171
24533991614,1cyclictest1475-21grep23:15:121
24533991614,1cyclictest0-21swapper/123:55:161
24533991614,1cyclictest0-21swapper/123:35:181
24533991614,1cyclictest0-21swapper/123:25:171
24533991614,1cyclictest0-21swapper/121:30:111
24533991614,1cyclictest0-21swapper/120:40:111
24533991614,1cyclictest0-21swapper/120:10:171
24533991614,1cyclictest0-21swapper/119:45:211
24533991613,2cyclictest9147-21cat22:30:131
24533991613,2cyclictest1274-21runrttasks22:40:111
24533991613,1cyclictest0-21swapper/121:35:201
2453399161,1cyclictest0-21swapper/119:50:171
2453399160,2cyclictest26232-21cat20:10:001
2453399160,1cyclictest117242sleep100:30:061
2453399160,1cyclictest0-21swapper/123:45:171
2453399160,1cyclictest0-21swapper/122:15:191
2453399160,1cyclictest0-21swapper/121:20:121
2453399160,15cyclictest7727-21sendmail_mailtr22:25:211
2453399160,15cyclictest22080-21taskset21:55:121
2453399160,15cyclictest15919-21open_inodes00:35:181
2453399160,15cyclictest0-21swapper/123:50:131
2453399160,15cyclictest0-21swapper/122:50:131
2453399160,15cyclictest0-21swapper/120:55:151
2453399160,15cyclictest0-21swapper/120:30:141
2453399160,15cyclictest0-21swapper/120:30:141
2453399160,15cyclictest0-21swapper/120:25:151
24532991614,1cyclictest0-21swapper/023:40:020
24532991614,1cyclictest0-21swapper/023:20:110
24532991614,1cyclictest0-21swapper/023:05:490
24532991614,1cyclictest0-21swapper/021:45:180
24532991614,1cyclictest0-21swapper/020:45:130
24532991614,1cyclictest0-21swapper/020:44:070
24532991614,1cyclictest0-21swapper/020:10:050
24532991614,1cyclictest0-21swapper/020:05:150
24532991614,1cyclictest0-21swapper/019:55:120
24532991613,2cyclictest9657-21/usr/sbin/munin00:25:130
24532991613,2cyclictest31597-21cat23:10:140
24532991613,2cyclictest19250-21cat23:45:130
24532991613,2cyclictest1074-21fschecks_time00:10:130
24532991612,3cyclictest0-21swapper/022:45:130
2453299160,1cyclictest10728-21http_loadtime23:30:140
2453299160,1cyclictest0-21swapper/021:25:190
2453299160,1cyclictest0-21swapper/019:35:200
2453299160,15cyclictest6525-21cat20:30:130
2453299160,15cyclictest6525-21cat20:30:130
2453299160,15cyclictest0-21swapper/023:55:140
2453299160,15cyclictest0-21swapper/023:15:160
2453299160,15cyclictest0-21swapper/022:50:130
2453299160,15cyclictest0-21swapper/021:20:010
2453299160,15cyclictest0-21swapper/019:30:190
2453299160,15cyclictest0-21swapper/019:25:140
2453299160,15cyclictest0-21swapper/000:30:130
2453299160,15cyclictest0-21swapper/000:20:200
2453399150,14cyclictest0-21swapper/119:20:121
24532991514,1cyclictest0-21swapper/000:15:200
2453299150,1cyclictest0-21swapper/021:11:450
2453299150,1cyclictest0-21swapper/020:55:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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