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2026-06-07 - 20:05
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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 Sun Jun 07, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14891992422,1cyclictest28-21ksoftirqd/210:40:152
1487999220,4cyclictest0-21swapper/012:15:010
1487999212,1cyclictest0-21swapper/010:42:150
1489199200,17cyclictest0-21swapper/209:50:142
1489199200,17cyclictest0-21swapper/209:50:142
1488499204,15cyclictest21-21ksoftirqd/108:35:431
14884992017,2cyclictest6225-21php7.011:39:001
14884992012,3cyclictest0-21swapper/107:35:321
1488499200,4cyclictest0-21swapper/110:47:531
1487999201,18cyclictest22385-21cpuspeed_turbos11:10:130
14891991917,1cyclictest0-21swapper/210:53:062
14891991917,1cyclictest0-21swapper/208:34:272
14891991917,1cyclictest0-21swapper/208:34:262
14891991916,2cyclictest3991-21H222:10:212
1489199190,18cyclictest3991-21H222:10:212
1488499193,15cyclictest0-21swapper/107:10:191
1488499192,16cyclictest0-21swapper/110:25:121
1488499190,18cyclictest14496-21snapd11:10:281
1488499190,16cyclictest3989-21H222:10:211
1487999198,10cyclictest0-21swapper/010:50:450
14879991917,1cyclictest0-21swapper/010:24:300
1487999191,17cyclictest9-21ksoftirqd/009:07:570
1487999190,2cyclictest4035-21H222:10:210
1487999190,1cyclictest0-21swapper/011:37:260
1487999190,1cyclictest0-21swapper/009:43:450
1489199182,15cyclictest3987-21H222:10:212
1489199182,15cyclictest28-21ksoftirqd/210:10:122
1489199182,15cyclictest27888-21latency09:25:162
1489199182,15cyclictest11587-21chrt11:46:212
14891991815,2cyclictest3989-21H222:10:212
14891991814,3cyclictest3351-21lxd11:20:422
14891991814,2cyclictest4099-21H222:10:212
1489199181,16cyclictest3989-21H222:10:212
1489199180,3cyclictest3845-21uname12:30:172
1489199180,2cyclictest3985-21H222:10:212
1489199180,2cyclictest3976-21H222:10:212
1489199180,17cyclictest4099-21H222:10:212
1489199180,17cyclictest4035-21H222:10:212
1489199180,17cyclictest14505-21snapd11:57:572
1489199180,16cyclictest5801-21munin-plugin-st09:45:012
1488499182,1cyclictest7057-21grep11:40:121
1488499182,15cyclictest20563-21cat10:10:001
1488499182,15cyclictest195472chrt12:00:211
1488499182,15cyclictest17963-21nfsd408:10:181
1488499182,15cyclictest0-21swapper/109:32:251
14884991816,1cyclictest0-21swapper/112:20:591
14884991816,1cyclictest0-21swapper/110:15:141
14884991816,1cyclictest0-21swapper/108:17:031
14884991814,3cyclictest3985-21H222:10:211
14884991814,3cyclictest3857-21fschecks_count09:40:131
14884991814,2cyclictest3991-21H222:10:211
14884991814,2cyclictest3981-21H222:10:211
1488499181,16cyclictest7603-21chrt12:37:531
1488499181,16cyclictest30202-21chrt08:32:531
1488499181,16cyclictest30202-21chrt08:32:531
1488499180,2cyclictest4035-21H222:10:211
1488499180,2cyclictest3987-21H222:10:211
1488499180,2cyclictest3985-21H222:10:211
1488499180,2cyclictest11855-21cron11:50:001
1488499180,16cyclictest10710-21munin-run08:00:001
1488499180,15cyclictest0-21swapper/110:20:201
1487999182,15cyclictest271782sleep011:18:320
14879991815,2cyclictest11046-21chrt09:54:220
14879991815,2cyclictest11046-21chrt09:54:220
14879991814,3cyclictest4035-21H222:10:210
14879991814,3cyclictest3991-21H222:10:210
14879991814,3cyclictest3985-21H222:10:210
14879991814,3cyclictest3976-21H222:10:210
14879991814,3cyclictest0-21swapper/007:23:370
1487999180,3cyclictest1351-21lxd09:10:420
1487999180,17cyclictest23077-21munin-plugin-st12:10:000
1489199172,1cyclictest28-21ksoftirqd/210:48:342
14891991715,1cyclictest14408-21sed09:00:202
14891991715,1cyclictest0-21swapper/207:50:132
14891991715,1cyclictest0-21swapper/207:46:142
14891991714,2cyclictest9611-21nfsd407:55:182
14891991714,2cyclictest4546-21cpuspeed_turbos08:45:142
14891991714,2cyclictest3991-21H222:10:212
14891991714,2cyclictest3989-21H222:10:212
14891991714,2cyclictest3987-21H222:10:212
14891991714,2cyclictest3985-21H222:10:212
14891991714,2cyclictest3976-21H222:10:212
14891991714,2cyclictest20563-21cpuspeed_turbos12:05:142
14891991714,2cyclictest19258-21nfsd407:15:182
14891991714,2cyclictest18108-21ps11:00:192
14891991714,2cyclictest1300-21lxd11:18:422
14891991714,2cyclictest11922-21/usr/sbin/munin09:55:122
14891991714,2cyclictest0-21swapper/212:15:212
14891991714,1cyclictest4099-21H222:10:212
14891991714,1cyclictest0-21swapper/211:50:182
1489199171,2cyclictest29157-21expr07:35:142
1489199170,2cyclictest8310-21smtpd09:49:512
1489199170,2cyclictest4035-21H222:10:212
1489199170,2cyclictest3987-21H222:10:212
1489199170,2cyclictest3981-21H222:10:212
1489199170,2cyclictest26590-21cat07:30:142
1489199170,2cyclictest11129-21needreboot08:55:172
1489199170,16cyclictest4443-21expr11:35:132
1489199170,16cyclictest4099-21H222:10:212
1489199170,16cyclictest4035-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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