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2025-12-04 - 21:47
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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 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
2802399181,16cyclictest997-21thermald07:30:230
2802399181,16cyclictest970-21dbus-daemon10:00:190
2802399180,2cyclictest4536-21H212:26:330
28032991714,2cyclictest9858-21cstates08:30:142
28032991714,2cyclictest30132-21cat07:10:222
28032991714,2cyclictest28171-21grep11:55:142
28032991714,2cyclictest17760-21grep08:45:142
2803299171,1cyclictest0-21swapper/210:50:142
2803299171,15cyclictest0-21swapper/212:10:142
2803299170,2cyclictest4538-21H212:26:332
2803299170,2cyclictest24441-21cut08:55:202
2803299170,2cyclictest22485-21expr09:50:152
2803299170,2cyclictest19334-21grep11:40:142
2803299170,2cyclictest17679-21nfsd411:35:182
2803299170,2cyclictest13351-21/usr/sbin/munin07:40:142
2803299170,2cyclictest12897-21cat08:35:162
2803299170,1cyclictest0-21swapper/212:15:142
2803299170,1cyclictest0-21swapper/211:51:552
2803299170,1cyclictest0-21swapper/210:44:272
2803299170,16cyclictest8865-21sort09:25:162
2803299170,16cyclictest4363-21cat08:20:152
2803299170,16cyclictest30058-21sed08:10:012
2803299170,16cyclictest28209-21fschecks_time10:00:132
2803299170,16cyclictest26388-21cstates09:00:142
2803299170,16cyclictest19578-21cstates09:45:152
2803299170,16cyclictest19578-21cstates09:45:152
2803299170,16cyclictest1845-21systemd-journal11:05:012
2803299170,16cyclictest1845-21systemd-journal11:05:012
2803299170,16cyclictest13370-21sed11:30:002
2803299170,16cyclictest13370-21sed11:30:002
2803299170,16cyclictest1045-21wc10:10:142
2802799179,5cyclictest0-21swapper/107:55:131
2802799172,1cyclictest0-21swapper/110:55:141
28027991714,2cyclictest7723-21acpi07:30:121
28027991714,2cyclictest31983-21/usr/sbin/munin07:15:191
28027991714,2cyclictest29031-21sed11:55:191
28027991714,2cyclictest23766-21expr10:50:141
28027991714,2cyclictest12353-21tr08:35:141
2802799171,15cyclictest26199-21cstates09:00:141
2802799171,15cyclictest0-21swapper/112:15:151
2802799170,2cyclictest9970-21df08:30:151
2802799170,2cyclictest829-21cpuspeed_turbos08:15:141
2802799170,2cyclictest32032-21cstates09:10:151
2802799170,2cyclictest18955-21nfsd408:45:181
2802799170,2cyclictest15114-21cstates12:30:151
2802799170,16cyclictest7118-21expr10:20:161
2802799170,16cyclictest6924-21cstates08:25:131
2802799170,16cyclictest4534-21H212:26:331
2802799170,16cyclictest30063-21threads07:10:221
2802799170,16cyclictest24787-21grep09:55:141
2802799170,16cyclictest2068-21grep11:10:141
2802799170,16cyclictest20255-21latency07:50:171
2802799170,16cyclictest16863-21ls09:40:131
2802799170,16cyclictest1524-21sort10:10:151
2802799170,16cyclictest0-21swapper/109:35:111
28023991715,1cyclictest9-21ksoftirqd/010:19:100
28023991715,1cyclictest61402chrt08:23:480
28023991715,1cyclictest0-21swapper/011:44:470
28023991715,1cyclictest0-21swapper/011:00:500
28023991715,1cyclictest0-21swapper/010:40:400
28023991714,2cyclictest8159-21pzem_current12:15:210
28023991714,2cyclictest4528-21H212:26:330
28023991714,2cyclictest29116-21expr09:05:150
28023991714,2cyclictest21721-21latency_hist07:55:000
28023991714,2cyclictest16808-21grep07:45:150
28023991714,2cyclictest15130-21cat12:30:150
28023991714,2cyclictest14573-21cron08:40:010
28023991714,2cyclictest1405-21lxd11:15:070
28023991714,2cyclictest14049-21sed12:25:230
28023991714,2cyclictest11954-21pluginstate12:25:000
28023991714,2cyclictest1075-21expr12:05:140
2802399171,15cyclictest4534-21H212:26:330
2802399170,2cyclictest8138-21gpgv09:25:020
2802399170,2cyclictest4536-21H212:26:330
2802399170,2cyclictest4532-21H212:26:330
2802399170,2cyclictest4528-21H212:26:330
2802399170,2cyclictest31970-21pzem_voltage08:10:250
2802399170,2cyclictest3167-21grep07:20:230
2802399170,2cyclictest28463-21ls11:55:170
2802399170,2cyclictest27546-21cpu08:05:150
2802399170,2cyclictest1541-21tune2fs10:10:160
2802399170,1cyclictest4534-21H212:26:330
2802399170,1cyclictest4534-21H212:26:330
2802399170,1cyclictest4530-21H212:26:330
2802399170,16cyclictest7722-21ls08:25:170
2802399170,16cyclictest4538-21H212:26:330
2802399170,16cyclictest4536-21H212:26:330
2802399170,16cyclictest4530-21H212:26:330
2802399170,16cyclictest4468-21fschecks_count12:10:150
2802399170,16cyclictest30005-21snapd11:24:410
2802399170,16cyclictest26394-21expr10:55:160
2802399170,16cyclictest23435-21ntpq07:55:180
2802399170,16cyclictest2049-21systemd-journal07:25:010
2802399170,16cyclictest12950-21perf07:40:010
2802399170,16cyclictest0-21swapper/009:50:200
28023991614,1cyclictest0-21swapper/010:05:190
28023991614,1cyclictest0-21swapper/008:45:150
28023991614,1cyclictest0-21swapper/008:30:180
28023991613,2cyclictest26887-21sendmail-mta08:02:220
2802399160,1cyclictest0-21swapper/011:50:150
2802399160,15cyclictest20834-21cat08:50:150
2802399160,15cyclictest1555-21lxd09:55:060
2802399160,15cyclictest0-21swapper/011:30:010
2802399160,15cyclictest0-21swapper/011:30:010
2802399160,15cyclictest0-21swapper/010:50:150
2802399160,15cyclictest0-21swapper/009:00:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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