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2026-04-03 - 03:43
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Fri Apr 03, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22293992525,0cyclictest0-21swapper/020:05:170
22294992414,10cyclictest0-21swapper/121:15:181
2229599237,15cyclictest0-21swapper/200:27:522
2229499230,23cyclictest0-21swapper/120:54:541
2229499230,23cyclictest0-21swapper/120:30:141
2229499220,18cyclictest0-21swapper/100:00:211
2229399220,0cyclictest0-21swapper/022:40:160
22295992117,3cyclictest0-21swapper/220:01:172
2229599210,20cyclictest843-21systemd-network22:51:362
2229499210,20cyclictest0-21swapper/119:38:591
2229499204,15cyclictest0-21swapper/122:22:191
2229499204,15cyclictest0-21swapper/120:25:151
2229499203,2cyclictest13862-21if_err_enp1s023:40:151
2229499203,16cyclictest32638-21timerwakeupswit19:25:211
2229499200,20cyclictest0-21swapper/123:00:161
2229499200,19cyclictest10306-21cpuspeed_turbos23:35:131
2229399202,1cyclictest0-21swapper/023:20:330
22293992017,2cyclictest22206-21cut23:00:000
22293992014,5cyclictest0-21swapper/022:05:160
22295991917,1cyclictest0-21swapper/221:27:102
2229599190,3cyclictest0-21swapper/223:59:422
2229599190,3cyclictest0-21swapper/222:36:462
2229599190,2cyclictest3983-21H222:10:212
2229599190,18cyclictest25969-21chrt21:10:162
2229499192,2cyclictest22955-21expr21:05:151
2229499192,16cyclictest9131-21chrt19:40:281
2229499192,16cyclictest0-21swapper/100:25:221
22294991917,1cyclictest0-21swapper/123:12:331
22294991917,1cyclictest0-21swapper/100:30:151
22294991916,2cyclictest23721-21latency_hist20:10:011
22294991916,2cyclictest1937-21basename21:25:151
22294991914,3cyclictest0-21swapper/123:06:481
2229499190,2cyclictest3981-21H222:10:211
2229499190,2cyclictest25226-21cat19:15:011
2229499190,18cyclictest15343-21dpkg19:55:021
2229499190,18cyclictest0-21swapper/122:15:131
2229499190,18cyclictest0-21swapper/121:20:181
2229499190,17cyclictest31850irq/133-nvme0q221:40:141
2229499190,16cyclictest3501-21grep00:20:001
2229399191,16cyclictest0-21swapper/023:05:170
2229599182,15cyclictest32682-21timerwakeupswit19:25:222
22295991814,3cyclictest20749-21grep22:00:002
22295991814,3cyclictest20749-21grep22:00:002
22295991814,3cyclictest17710-21proxymap19:55:212
22295991812,5cyclictest0-21swapper/222:30:182
2229599181,16cyclictest9812-21cron21:40:002
2229599180,3cyclictest10151-21lxd00:30:332
2229599180,17cyclictest0-21swapper/222:40:192
2229599180,16cyclictest3991-21H222:10:212
2229599180,15cyclictest3983-21H222:10:212
2229499182,15cyclictest236872sleep123:56:491
2229499182,15cyclictest17826-21chrt19:56:461
2229499182,15cyclictest0-21swapper/121:15:011
2229499182,15cyclictest0-21swapper/120:35:121
22294991816,1cyclictest0-21swapper/123:20:121
22294991816,1cyclictest0-21swapper/122:45:261
22294991815,2cyclictest13738-21basename21:45:141
22294991815,2cyclictest11244-21expr19:45:181
22294991815,1cyclictest3987-21H222:10:211
22294991815,1cyclictest0-21swapper/122:00:041
22294991814,3cyclictest13735-21/usr/sbin/munin00:35:191
22294991813,3cyclictest0-21swapper/122:55:021
2229499181,2cyclictest19856-21grep23:50:171
22294991812,3cyclictest0-21swapper/120:55:171
2229499181,1cyclictest0-21swapper/123:30:121
2229499181,16cyclictest31553-21cat00:10:181
2229499181,16cyclictest25168-21expr22:05:181
2229499180,17cyclictest32687-21chrt23:16:131
2229499180,17cyclictest27655-21cstates00:05:141
2229499180,17cyclictest10000-21awk20:40:181
2229399182,2cyclictest18029-21latency_hist21:55:000
2229399182,1cyclictest23852-21grep19:10:170
2229399182,1cyclictest0-21swapper/000:38:590
2229399182,15cyclictest25594-21nfsd400:00:170
22293991814,1cyclictest0-21swapper/020:00:010
22293991813,3cyclictest7551-21grep23:30:130
2229399180,17cyclictest32655-21master23:15:470
2229399180,17cyclictest20315-21fschecks_time21:00:140
2229399180,15cyclictest0-21swapper/022:35:010
22295991715,1cyclictest0-21swapper/223:25:142
22295991715,1cyclictest0-21swapper/219:20:122
22295991714,2cyclictest6373-21cat20:35:132
22295991714,2cyclictest4099-21H222:10:212
22295991714,2cyclictest3981-21H222:10:212
22295991714,2cyclictest3979-21H222:10:212
22295991714,2cyclictest3141-21wc20:30:122
22295991714,2cyclictest30827-21grep21:20:132
22295991714,2cyclictest2740-21chrt22:25:122
22295991714,2cyclictest24234-21expr22:05:132
22295991714,2cyclictest23278-21fschecks_time19:10:152
22295991714,2cyclictest15938-21grep23:45:142
22295991714,2cyclictest1007-21missed_timers20:25:172
2229599171,15cyclictest28-21ksoftirqd/223:39:512
2229599170,2cyclictest9404-21munin-run23:35:002
2229599170,2cyclictest9058-21expr20:40:142
2229599170,2cyclictest4035-21H222:10:212
2229599170,2cyclictest3979-21H222:10:212
2229599170,2cyclictest27093-21/usr/sbin/munin00:05:152
2229599170,2cyclictest23629-21cron20:09:002
2229599170,2cyclictest1579-21expr19:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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