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2025-12-05 - 07:46
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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 Dec 05, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1330899263,19cyclictest0-21swapper/221:05:102
1330899263,19cyclictest0-21swapper/221:05:102
1330899260,8cyclictest0-21swapper/219:18:092
1330899253,21cyclictest0-21swapper/220:45:482
1330699251,19cyclictest7686-21latency_hist20:55:000
13308992417,6cyclictest0-21swapper/219:34:512
1330899241,22cyclictest0-21swapper/223:17:492
1330899240,23cyclictest17817-21cat22:10:012
1330899232,20cyclictest970-21dbus-daemon19:10:222
1330899231,21cyclictest2907-21cat00:35:012
1330899231,21cyclictest14207-21ntpq23:55:222
1330899230,7cyclictest5672-21mailstats19:50:212
1330899230,22cyclictest2575-21awk23:35:192
1330899223,4cyclictest0-21swapper/223:40:402
1330899223,4cyclictest0-21swapper/223:40:402
1330899222,5cyclictest23204-21chrt21:20:202
1330899222,19cyclictest25652-21cpuspeed_turbos23:20:142
1330899220,21cyclictest9560-21missed_timers22:50:192
1330899220,21cyclictest6146-21cut21:50:002
1330899220,21cyclictest52242chrt20:50:082
1330899220,21cyclictest4752sleep221:40:062
1330899220,21cyclictest32503-21apt21:40:012
1330899220,21cyclictest324072sleep219:43:522
1330899220,21cyclictest32098-21wc22:35:152
1330899220,21cyclictest293082chrt22:30:032
1330899220,21cyclictest29152-21cat00:25:002
1330899220,21cyclictest28513-21grep21:30:242
1330899220,21cyclictest2396-21cat00:35:002
1330899220,21cyclictest23632-21sed19:25:212
1330899220,21cyclictest22966-21cat22:15:202
1330899220,21cyclictest18543-21uniq20:15:162
1330899220,21cyclictest15783-21timerwakeupswit23:00:262
1330899220,21cyclictest15467-21expr20:10:162
1330899220,21cyclictest13293-21munin-run21:05:002
1330899220,21cyclictest12168-21sed20:05:012
1330899220,20cyclictest0-21swapper/220:30:252
1330899220,20cyclictest0-21swapper/200:05:182
1330899220,1cyclictest0-21swapper/220:40:012
1330699220,18cyclictest0-21swapper/022:10:180
13308992114,6cyclictest3623-21latency_hist19:50:002
13308992114,6cyclictest15945-21expr00:00:162
1330899210,6cyclictest0-21swapper/221:18:592
1330899210,20cyclictest7149-21ls19:55:162
1330899210,20cyclictest29232-21latency_hist22:30:012
1330899210,20cyclictest28597-21awk19:35:192
1330899210,20cyclictest25608-21sed22:20:222
1330899210,20cyclictest23461-21wc20:25:152
1330899210,20cyclictest19189-21cpuspeed_turbos19:20:132
1330899210,20cyclictest12352-21grep22:55:192
1330899210,20cyclictest0-21swapper/223:25:142
1330899210,20cyclictest0-21swapper/222:44:412
1330899210,20cyclictest0-21swapper/200:28:202
1330899210,1cyclictest3441-21gsd-color23:46:582
1330899210,1cyclictest0-21swapper/223:10:012
1330899210,1cyclictest0-21swapper/222:45:182
1330899210,1cyclictest0-21swapper/222:10:172
1330899210,1cyclictest0-21swapper/221:50:212
1330899210,1cyclictest0-21swapper/220:40:242
1330899210,0cyclictest0-21swapper/220:20:172
1330799216,14cyclictest0-21swapper/122:12:311
13307992116,2cyclictest767-21nvmesmart_nvme020:40:221
1330899201,18cyclictest4538-21H212:26:332
1330899200,5cyclictest12346-21/usr/sbin/munin22:00:172
1330899200,19cyclictest17924-21mailstats21:10:212
1330899200,19cyclictest0-21swapper/223:30:192
1330899200,19cyclictest0-21swapper/220:05:182
1330899200,19cyclictest0-21swapper/200:20:012
1330699204,15cyclictest0-21swapper/021:39:360
13308991914,4cyclictest0-21swapper/220:55:162
1330899190,18cyclictest0-21swapper/223:07:362
1330899190,18cyclictest0-21swapper/221:55:152
13307991916,2cyclictest31676-21grep22:35:011
13307991916,2cyclictest26865-21grep19:35:001
13307991915,3cyclictest4581-21H212:26:331
1330699193,15cyclictest9-21ksoftirqd/000:06:230
1330699192,15cyclictest0-21swapper/020:05:160
13306991914,4cyclictest13500-21cron23:00:010
1330799182,1cyclictest0-21swapper/121:46:021
1330799182,15cyclictest4534-21H212:26:331
1330799182,15cyclictest0-21swapper/121:05:331
1330799182,15cyclictest0-21swapper/121:05:321
13307991816,1cyclictest0-21swapper/123:55:201
13307991816,1cyclictest0-21swapper/120:17:031
13307991811,6cyclictest17330-21fschecks_time23:05:171
1330799180,2cyclictest4526-21H212:26:331
1330799180,17cyclictest14705-21perf22:05:011
1330799180,17cyclictest12085-21cat20:05:011
1330699182,15cyclictest4526-21H212:26:330
1330699182,15cyclictest23034-21nfsd419:25:180
13306991816,1cyclictest5459-21ntp_kernel_pll_19:50:190
13306991816,1cyclictest0-21swapper/020:30:000
13306991814,3cyclictest4528-21H212:26:330
1330699180,3cyclictest32078-21sort19:40:220
1330699180,3cyclictest1411-21lxd23:51:140
1330699180,17cyclictest21410-21idleruntime-cro21:20:010
13307991715,1cyclictest3441-21gsd-color19:39:351
13307991715,1cyclictest0-21swapper/123:10:261
13307991715,1cyclictest0-21swapper/123:00:171
13307991714,2cyclictest4593-21H212:26:331
13307991714,2cyclictest4538-21H212:26:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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