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2025-06-01 - 05:34
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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 highest latencies:
System rackdslot0.osadl.org (updated Sun Jun 01, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17403993011,14cyclictest0-21swapper/221:15:192
1740399240,19cyclictest9159-21cron00:40:002
1739999247,13cyclictest0-21swapper/119:45:201
1739999237,15cyclictest0-21swapper/100:25:221
1739999237,15cyclictest0-21swapper/100:25:221
1739999230,20cyclictest0-21swapper/123:09:341
1739999227,14cyclictest0-21swapper/123:00:201
1739299220,4cyclictest0-21swapper/019:50:380
1739999216,14cyclictest0-21swapper/119:30:191
1739999200,6cyclictest823-21systemd-network00:33:201
1740399194,9cyclictest3073-21apt-config00:30:012
1740399194,9cyclictest3073-21apt-config00:30:002
1740399193,15cyclictest0-21swapper/220:40:382
1740399192,15cyclictest0-21swapper/219:53:362
17403991916,2cyclictest13841-21nfsd423:45:222
1740399191,15cyclictest0-21swapper/221:35:182
17403991910,0cyclictest0-21swapper/221:05:022
1740399190,3cyclictest0-21swapper/222:05:202
1739999194,14cyclictest0-21swapper/100:20:221
17399991917,1cyclictest0-21swapper/123:30:481
17399991916,2cyclictest23163-21sessionclean22:09:001
17399991915,3cyclictest21-21ksoftirqd/122:19:371
1739299194,1cyclictest0-21swapper/019:49:580
1739299190,1cyclictest0-21swapper/021:09:040
1739299190,18cyclictest0-21swapper/020:43:000
1739299190,18cyclictest0-21swapper/020:01:430
1740399182,15cyclictest29474-21expr19:30:162
17403991815,2cyclictest4593-21H212:26:332
17403991815,2cyclictest22187-21cpuspeed_turbos23:05:182
1739999182,15cyclictest268092chrt00:13:531
17399991816,1cyclictest0-21swapper/119:25:161
17399991815,2cyclictest17313-21nfsd421:00:211
17399991815,2cyclictest14691-21grep20:55:201
17399991815,1cyclictest0-21swapper/122:30:201
17399991814,2cyclictest0-21swapper/121:55:001
1739999180,3cyclictest10656-21cron22:45:001
1739999180,17cyclictest18767-21grep23:55:211
1739299182,2cyclictest967-21thermald19:40:230
1739299182,15cyclictest9-21ksoftirqd/019:21:520
1739299182,15cyclictest0-21swapper/020:07:520
17392991816,1cyclictest9-21ksoftirqd/020:24:470
17392991816,1cyclictest0-21swapper/022:38:070
17392991816,1cyclictest0-21swapper/020:31:150
17392991815,2cyclictest777-21nfsd422:25:210
17392991814,3cyclictest5552-21grep23:30:220
1739299180,3cyclictest23598-21uname20:15:190
1739299180,3cyclictest12250-21latency_hist23:45:000
1739299180,17cyclictest0-21swapper/019:36:520
17403991716,1cyclictest28-21ksoftirqd/200:13:112
17403991715,1cyclictest0-21swapper/221:01:282
17403991714,2cyclictest552-21nfsd419:35:192
17403991714,2cyclictest4538-21H212:26:332
17403991714,2cyclictest4369-21cat00:30:152
17403991714,2cyclictest414-20systemd-journal20:14:562
17403991714,2cyclictest30519-21expr00:20:172
17403991714,2cyclictest27676-21cut22:15:222
17403991714,2cyclictest22421-21sendmail_mailtr19:15:222
17403991714,2cyclictest20418-21idleruntime-cro00:00:002
17403991714,2cyclictest1086-21snmpd23:50:252
17403991714,2cyclictest10650-21idleruntime23:40:212
1740399171,15cyclictest30550-21cpuspeed_turbos21:25:202
1740399171,15cyclictest0-21swapper/220:50:212
1740399170,2cyclictest4534-21H212:26:332
1740399170,2cyclictest28477-21if_err_enp1s023:15:192
1740399170,2cyclictest2604-21sed21:30:252
1740399170,2cyclictest24709-21sed19:20:202
1740399170,2cyclictest24486-21sed21:15:002
1740399170,2cyclictest21331-21cstates00:00:202
1740399170,2cyclictest16661-21cstates20:05:162
1740399170,2cyclictest1354-21lxd20:32:542
1740399170,16cyclictest8986-21fschecks_count22:40:192
1740399170,16cyclictest692-21apache_processe23:25:162
1740399170,16cyclictest31564-21munin-run22:25:002
1740399170,16cyclictest28885-21sed20:25:192
1740399170,16cyclictest27976-21switchtime19:25:232
1740399170,16cyclictest1603-21lxd21:22:542
1740399170,16cyclictest15384-21/usr/sbin/munin21:55:222
1740399170,16cyclictest1506-21expr20:35:162
1740399170,16cyclictest15051-21awk22:50:192
1740399170,16cyclictest15014-21grep20:00:202
1740399170,16cyclictest1356-21lxd21:42:542
1740399170,16cyclictest1355-21lxd23:24:542
1740399170,16cyclictest11721-21/usr/sbin/munin22:45:202
1740399170,15cyclictest0-21swapper/223:30:192
1739999172,14cyclictest0-21swapper/120:20:141
17399991715,1cyclictest0-21swapper/119:41:101
17399991714,2cyclictest8209-21wc19:50:161
17399991714,2cyclictest2049-21systemd-journal19:37:221
17399991714,2cyclictest1404-21lxd22:12:541
1739999170,3cyclictest0-21swapper/123:15:201
1739999170,2cyclictest4025-21expr21:35:191
1739999170,2cyclictest26389-21sendmail_mailqu21:15:221
1739999170,2cyclictest21451-21taskset20:13:181
1739999170,2cyclictest10443-21sed20:50:011
1739999170,16cyclictest881-21avahi-daemon22:20:261
1739999170,16cyclictest3873-21python320:40:011
1739999170,16cyclictest28205-21fschecks_count21:20:141
1739999170,16cyclictest22360-21pzem_energy00:00:261
1739999170,16cyclictest1845-21systemd-journal23:35:001
1739999170,16cyclictest1845-21systemd-journal23:35:001
1739999170,16cyclictest15913-21anvil22:55:491
1739999170,16cyclictest15126-21proc_pri20:00:201
1739299172,1cyclictest0-21swapper/000:12:120
1739299172,14cyclictest23772-21apache_volume22:10:150
17392991715,1cyclictest0-21swapper/022:40:190
17392991715,1cyclictest0-21swapper/000:20:150
17392991714,2cyclictest4733-21idleruntime00:30:170
17392991714,2cyclictest3082-21awk20:35:230
17392991714,2cyclictest28837-21nfsd423:15:210
17392991714,2cyclictest18133-21expr19:10:150
17392991714,2cyclictest17750-21nfsd422:55:200
17392991714,2cyclictest16991-21mii-tool21:00:190
17392991714,2cyclictest11769-21fschecks_time22:45:200
17392991714,2cyclictest0-21swapper/019:55:180
17392991714,1cyclictest0-21swapper/022:08:220
1739299171,1cyclictest0-21swapper/023:05:050
1739299171,15cyclictest0-21swapper/023:20:230
1739299170,2cyclictest7705-21http_loadtime23:35:200
1739299170,2cyclictest7705-21http_loadtime23:35:200
1739299170,2cyclictest31017-21lxd22:30:540
1739299170,2cyclictest3076-21rs:main0
1739299170,2cyclictest29920-21perf21:25:010
1739299170,2cyclictest21651-21latency_hist20:15:020
1739299170,2cyclictest19903-21sed22:00:260
1739299170,2cyclictest17677-21perf23:55:000
1739299170,17cyclictest0-21swapper/000:36:270
1739299170,16cyclictest970-21dbus-daemon21:40:280
1739299170,16cyclictest3350-21master21:37:570
1739299170,16cyclictest30263-21nfsd419:30:200
1739299170,16cyclictest27724-21expr00:15:150
1739299170,16cyclictest15524-21cpuspeed_turbos21:55:170
1739299170,16cyclictest14945-21latency_hist21:55:010
1739299170,16cyclictest14566-21nfsd420:55:200
1739299170,16cyclictest12045-21munin-plugin-st21:50:000
1739299170,16cyclictest11842-21nfsd420:50:210
1739299170,16cyclictest0-21swapper/022:20:210
1739299170,16cyclictest0-21swapper/020:46:130
17403991614,1cyclictest0-21swapper/223:00:222
17403991614,1cyclictest0-21swapper/222:30:192
17403991614,1cyclictest0-21swapper/222:00:252
17403991614,1cyclictest0-21swapper/221:50:192
17403991614,1cyclictest0-21swapper/219:46:542
17403991613,2cyclictest26219-21latency_hist22:15:012
1740399160,1cyclictest0-21swapper/223:35:312
1740399160,1cyclictest0-21swapper/223:35:302
1740399160,1cyclictest0-21swapper/223:10:162
1740399160,1cyclictest0-21swapper/221:45:172
1740399160,15cyclictest2988-21cat19:40:172
1740399160,15cyclictest24462-21date00:10:002
1740399160,15cyclictest0-21swapper/222:35:182
1740399160,15cyclictest0-21swapper/222:25:252
1740399160,15cyclictest0-21swapper/220:55:172
1740399160,15cyclictest0-21swapper/220:20:012
1740399160,15cyclictest0-21swapper/219:55:142
1740399160,15cyclictest0-21swapper/200:15:152
17399991614,1cyclictest30060-21snapd00:18:581
17399991614,1cyclictest0-21swapper/123:50:441
17399991614,1cyclictest0-21swapper/123:10:251
17399991614,1cyclictest0-21swapper/122:00:191
17399991614,1cyclictest0-21swapper/121:10:041
17399991614,1cyclictest0-21swapper/121:05:011
17399991614,1cyclictest0-21swapper/120:40:031
17399991614,1cyclictest0-21swapper/120:30:151
17399991614,1cyclictest0-21swapper/120:15:151
17399991614,1cyclictest0-21swapper/119:20:161
17399991614,1cyclictest0-21swapper/100:05:411
17399991613,2cyclictest9526-21cpuspeed_turbos21:45:171
17399991613,2cyclictest7426-21apt-get20:45:151
1739999161,1cyclictest0-21swapper/122:45:201
1739999160,2cyclictest13148-21expr23:45:171
1739999160,2cyclictest0-21swapper/122:50:151
1739999160,1cyclictest30435-21grep21:25:201
1739999160,1cyclictest2960-21postgres20:25:181
1739999160,1cyclictest0-21swapper/123:40:221
1739999160,1cyclictest0-21swapper/119:15:101
1739999160,1cyclictest0-21swapper/100:38:591
1739999160,15cyclictest2538-21timerandwakeup21:30:241
1739999160,15cyclictest17680-21/usr/sbin/munin19:10:171
1739999160,15cyclictest17078-21fschecks_time20:05:181
1739999160,15cyclictest13114-21postgres19:59:181
1739999160,15cyclictest0-21swapper/123:25:151
1739999160,15cyclictest0-21swapper/123:20:171
1739999160,15cyclictest0-21swapper/122:35:191
1739999160,15cyclictest0-21swapper/122:25:261
1739999160,15cyclictest0-21swapper/121:55:191
17392991614,1cyclictest3441-21gsd-color00:08:290
17392991614,1cyclictest0-21swapper/023:00:150
17392991614,1cyclictest0-21swapper/021:30:160
17392991614,1cyclictest0-21swapper/021:15:190
1739299160,2cyclictest29180-21awk20:25:200
1739299160,1cyclictest695-21expr00:25:170
1739299160,1cyclictest695-21expr00:25:170
1739299160,15cyclictest796-21cpuspeed_turbos23:25:170
1739299160,15cyclictest270362chrt23:12:570
1739299160,15cyclictest27031-21smartctl19:25:170
1739299160,15cyclictest0-21swapper/023:55:190
1739299160,15cyclictest0-21swapper/022:50:150
1739299160,15cyclictest0-21swapper/021:25:240
1739299160,15cyclictest0-21swapper/021:10:140
1739299160,15cyclictest0-21swapper/000:00:240
17403991513,1cyclictest7550-21cpuspeed_turbos20:45:162
1739999150,0cyclictest0-21swapper/121:40:191
1739299150,1cyclictest0-21swapper/022:15:220
1739299150,14cyclictest0-21swapper/023:45:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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