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2025-12-04 - 19:13
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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 Thu Dec 04, 2025 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28032992726,1cyclictest0-21swapper/208:54:182
2802799260,15cyclictest0-21swapper/111:20:191
28032992415,0cyclictest0-21swapper/210:30:162
2803299230,5cyclictest0-21swapper/208:28:182
2803299230,18cyclictest0-21swapper/209:23:372
2802799220,18cyclictest0-21swapper/111:06:521
2802799220,18cyclictest0-21swapper/111:06:521
2802799220,18cyclictest0-21swapper/107:35:211
28032992118,2cyclictest7450-21lockfile-remove11:20:012
2803299210,3cyclictest0-21swapper/209:09:352
2803299210,20cyclictest0-21swapper/209:43:552
2803299210,1cyclictest0-21swapper/207:50:142
28027992114,3cyclictest0-21swapper/110:32:401
28032992015,2cyclictest6997-21apache207:25:012
28032992011,0cyclictest0-21swapper/209:10:172
2803299200,3cyclictest4528-21H212:26:332
2803299200,3cyclictest15091-21cut09:35:222
28027992017,2cyclictest0-21swapper/110:35:121
28027992014,3cyclictest0-21swapper/112:08:431
28027992014,1cyclictest0-21swapper/111:05:001
28027992013,6cyclictest454-21plymouthd11:20:011
2802799200,16cyclictest0-21swapper/112:38:461
2802799200,16cyclictest0-21swapper/109:45:461
2802799200,16cyclictest0-21swapper/109:45:461
2802399204,15cyclictest0-21swapper/009:20:060
2802399200,19cyclictest414-20systemd-journal09:12:480
2803299192,16cyclictest31078-21sed11:05:002
2803299192,16cyclictest22525-21cstates07:55:142
28032991917,1cyclictest0-21swapper/212:38:312
28032991917,1cyclictest0-21swapper/211:27:592
28032991917,1cyclictest0-21swapper/207:20:202
28032991916,2cyclictest28248-21latency_hist11:00:002
28032991916,1cyclictest0-21swapper/208:00:072
28032991914,3cyclictest0-21swapper/207:37:402
2803299191,3cyclictest970-21dbus-daemon12:20:202
2803299190,16cyclictest4523-21H212:26:332
2802799193,15cyclictest3066-21systemd-logind07:22:071
28027991917,1cyclictest26319-21sed11:50:201
28027991917,1cyclictest11228-21seq09:30:161
28027991917,1cyclictest0-21swapper/112:10:121
2802799190,3cyclictest0-21swapper/109:20:141
2802799190,17cyclictest414-20systemd-journal09:05:011
2802799190,17cyclictest17654-21ls08:45:011
2802799190,17cyclictest0-21swapper/108:06:311
2802799190,16cyclictest4532-21H212:26:331
2802399194,1cyclictest0-21swapper/010:34:400
2802399192,2cyclictest4863-21cat09:20:020
28023991917,1cyclictest0-21swapper/009:45:190
28023991917,1cyclictest0-21swapper/009:45:190
28023991917,1cyclictest0-21swapper/008:17:430
2802399190,17cyclictest4528-21H212:26:330
2802399190,17cyclictest16759-21tr09:40:130
2803299182,15cyclictest186812sleep207:47:302
2803299182,15cyclictest0-21swapper/207:30:212
28032991816,1cyclictest2198-21awk08:15:192
28032991816,1cyclictest0-21swapper/208:12:572
28032991815,2cyclictest9641-21cstates10:25:142
28032991814,3cyclictest4581-21H212:26:332
28032991814,3cyclictest14846-21apache_accesses10:35:132
2803299181,3cyclictest0-21swapper/212:25:182
28032991813,4cyclictest0-21swapper/209:15:142
2803299181,2cyclictest2253-21mailstats12:05:212
2803299181,2cyclictest17256-21chrt08:44:172
2803299181,16cyclictest32443-21chrt12:03:192
2803299181,16cyclictest13271-21munin-run09:35:012
2803299181,15cyclictest0-21swapper/212:30:222
2803299180,4cyclictest0-21swapper/210:45:062
2803299180,17cyclictest7431-21cat10:20:182
2803299180,17cyclictest4593-21H212:26:332
2803299180,17cyclictest32455-21grep07:15:212
2802799182,1cyclictest59722sleep108:21:331
2802799182,15cyclictest19168-21sed11:40:011
2802799182,15cyclictest0-21swapper/110:15:181
2802799182,15cyclictest0-21swapper/110:05:241
28027991816,1cyclictest5356-21expr07:25:151
28027991816,1cyclictest27439-21cat08:05:011
28027991816,1cyclictest0-21swapper/112:25:331
28027991815,2cyclictest22137-21cat11:45:141
28027991815,2cyclictest20825-21expr08:50:151
28027991815,1cyclictest0-21swapper/112:01:541
28027991814,3cyclictest15811-21sed07:45:011
28027991814,3cyclictest12973-21python311:30:001
2802799181,2cyclictest0-21swapper/112:20:131
2802799180,3cyclictest0-21swapper/110:45:181
2802799180,2cyclictest4581-21H212:26:331
2802799180,2cyclictest4532-21H212:26:331
2802799180,2cyclictest4532-21H212:26:331
2802799180,2cyclictest4530-21H212:26:331
2802799180,17cyclictest4581-21H212:26:331
2802799180,17cyclictest4532-21H212:26:331
2802799180,17cyclictest30541-21tr08:10:141
2802799180,17cyclictest20603-21awk11:40:181
2802799180,17cyclictest0-21swapper/108:55:401
2802799180,15cyclictest4581-21H212:26:331
2802399182,15cyclictest9-21ksoftirqd/012:37:210
2802399182,15cyclictest21529-21missed_timers10:45:170
28023991816,1cyclictest7288-21fschecks_count10:20:170
28023991814,3cyclictest4534-21H212:26:330
28023991814,2cyclictest4538-21H212:26:330
2802399181,2cyclictest15410-21chrt07:41:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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