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2026-08-21 - 08:07
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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 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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