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2026-06-20 - 16:34
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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 Sat Jun 20, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7447992927,1cyclictest0-21swapper/010:25:020
745699230,5cyclictest271rcuc/207:16:162
744799230,5cyclictest0-21swapper/008:11:570
744799220,18cyclictest0-21swapper/007:44:580
7456992119,1cyclictest28-21ksoftirqd/208:50:012
745199210,17cyclictest0-21swapper/112:37:171
744799214,16cyclictest14417-21gpgconf08:20:010
744799210,3cyclictest0-21swapper/009:43:190
744799210,18cyclictest0-21swapper/010:18:030
745699203,11cyclictest17378-21updatedb.mlocat08:25:012
745699203,11cyclictest17378-21updatedb.mlocat08:25:002
745699202,17cyclictest0-21swapper/211:30:142
745699200,19cyclictest399-20systemd-journal12:02:422
745199204,15cyclictest0-21swapper/110:21:181
744799204,15cyclictest0-21swapper/008:35:030
744799203,16cyclictest14193-21sh11:09:000
744799203,16cyclictest0-21swapper/010:24:040
744799202,17cyclictest0-21swapper/012:09:130
744799202,17cyclictest0-21swapper/011:15:140
7447992017,2cyclictest8119-21cpuspeed_turbos10:00:130
7447992016,1cyclictest0-21swapper/011:20:200
7456991916,2cyclictest10896-21cpuspeed_turbos10:05:142
745699190,1cyclictest0-21swapper/209:55:182
745199192,16cyclictest16596-21cstates10:15:141
744799192,2cyclictest7067-21grep10:55:160
744799192,2cyclictest22666-21expr12:20:140
744799192,16cyclictest32628-21expr11:40:180
744799192,16cyclictest11568-21interrupts12:00:160
744799192,16cyclictest0-21swapper/010:06:430
7447991916,2cyclictest21195-21cpuspeed_turbos08:30:120
7447991913,1cyclictest0-21swapper/009:20:160
744799191,17cyclictest0-21swapper/009:47:050
744799190,1cyclictest0-21swapper/010:33:500
744799190,18cyclictest522-21latency_hist12:40:010
744799190,18cyclictest4272-21fschecks_count08:55:160
744799190,17cyclictest0-21swapper/011:01:290
744799190,16cyclictest28174-21latency_hist09:40:010
7456991818,0cyclictest0-21swapper/210:15:122
7456991816,1cyclictest28-21ksoftirqd/209:14:262
7456991816,1cyclictest271rcuc/210:10:192
7456991816,1cyclictest0-21swapper/211:45:492
7456991815,2cyclictest28-21ksoftirqd/207:40:012
7456991815,2cyclictest28-21ksoftirqd/207:40:012
745699181,2cyclictest16659-21expr12:10:132
745699180,15cyclictest0-21swapper/208:40:212
745199182,15cyclictest21-21ksoftirqd/111:15:131
7451991816,1cyclictest23762-21cron07:39:021
7451991816,1cyclictest23762-21cron07:39:011
7451991815,2cyclictest2904-21fschecks_count09:50:141
7451991815,2cyclictest1321-21perf11:45:001
7451991815,2cyclictest0-21swapper/111:20:131
745199181,2cyclictest993-21dbus-daemon10:35:211
745199181,2cyclictest22307-21cut08:30:171
7451991812,4cyclictest0-21swapper/107:10:161
745199181,16cyclictest32361-21apt-key08:50:001
745199181,16cyclictest27135-21open_files09:35:191
745199180,17cyclictest1786-21needreboot10:45:171
745199180,15cyclictest0-21swapper/108:05:011
745199180,15cyclictest0-21swapper/108:05:001
744799182,1cyclictest9-21ksoftirqd/009:19:560
744799182,1cyclictest2351-21sed08:50:220
744799182,1cyclictest2351-21sed08:50:210
744799182,1cyclictest0-21swapper/010:12:280
744799182,15cyclictest2514-21cron08:00:000
744799182,15cyclictest0-21swapper/010:45:010
744799182,15cyclictest0-21swapper/010:00:000
744799182,15cyclictest0-21swapper/008:45:010
7447991817,1cyclictest9-21ksoftirqd/011:25:180
7447991815,2cyclictest27499-21cut10:35:130
7447991815,2cyclictest23566-21chrt07:37:500
7447991815,2cyclictest23566-21chrt07:37:490
7447991815,2cyclictest20851-21chrt07:32:530
7447991814,3cyclictest25358-21date09:35:000
7447991814,3cyclictest14505-21snapd10:45:240
744799181,2cyclictest22525-21chrt09:29:300
744799181,16cyclictest10380-21sed12:00:000
744799180,4cyclictest17833-21munin-run08:25:010
744799180,4cyclictest17833-21munin-run08:25:000
744799180,3cyclictest31421-21wc07:50:210
744799180,3cyclictest21071-21apt-config12:15:460
744799180,3cyclictest21071-21apt-config12:15:450
744799180,1cyclictest0-21swapper/012:27:150
744799180,17cyclictest6702-21/usr/sbin/munin11:50:210
744799180,17cyclictest14813-21wc07:20:210
745699172,1cyclictest4100-21H222:10:212
7456991716,1cyclictest28-21ksoftirqd/211:40:172
7456991715,2cyclictest271rcuc/209:20:212
7456991715,1cyclictest8389-21sed08:09:022
7456991715,1cyclictest28-21ksoftirqd/211:05:152
7456991715,1cyclictest28-21ksoftirqd/208:10:152
7456991715,1cyclictest28-21ksoftirqd/207:29:002
7456991715,1cyclictest271rcuc/208:00:212
7456991715,1cyclictest271rcuc/208:00:212
7456991715,1cyclictest24719-21expr07:40:152
7456991715,1cyclictest0-21swapper/209:30:132
7456991714,2cyclictest6902-21expr09:00:142
7456991714,2cyclictest26678-21sed09:35:172
7456991714,2cyclictest24915-21expr10:30:142
7456991714,2cyclictest20292-21needreboot10:20:182
745699171,1cyclictest9535-21mailstats10:00:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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