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2026-03-19 - 03:19
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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 50 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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