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2026-03-29 - 23:49
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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 Mar 29, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
338499254,6cyclictest14779-21apache208:25:012
338499214,11cyclictest23288-21munin-run07:45:012
338399215,9cyclictest0-21swapper/107:20:131
338299212,18cyclictest0-21swapper/011:16:150
338499202,15cyclictest0-21swapper/209:30:132
3383992018,1cyclictest0-21swapper/110:30:121
338299203,9cyclictest8743-21python311:05:010
338499193,1cyclictest22473-21http_loadtime12:25:172
338499193,1cyclictest22473-21http_loadtime12:25:162
338399197,11cyclictest0-21swapper/108:10:141
338399190,18cyclictest0-21swapper/112:14:061
338299194,1cyclictest0-21swapper/012:20:120
338299190,4cyclictest14701-21logrotate08:25:010
338299190,18cyclictest30279-21nfsd411:40:190
338499182,15cyclictest0-21swapper/210:21:302
3384991816,1cyclictest0-21swapper/208:55:052
3384991815,2cyclictest9709-21expr07:20:142
338499181,2cyclictest21853-21grep11:25:192
3383991814,3cyclictest32142-21cron08:04:551
338399180,3cyclictest3256-21apache208:25:001
338399180,1cyclictest0-21swapper/107:12:371
338399180,17cyclictest32158-21munin-run08:00:011
338399180,17cyclictest2007-21systemd-journal10:19:331
338299182,1cyclictest12178-21sendmail_mailqu12:05:210
338299182,15cyclictest0-21swapper/010:09:010
3382991816,1cyclictest0-21swapper/008:04:530
3382991814,3cyclictest870-21systemd-logind12:36:520
338299181,16cyclictest16830-21snapd08:50:180
338299180,2cyclictest19170-21grep09:25:200
338299180,17cyclictest0-21swapper/009:32:360
3384991715,1cyclictest58462sleep207:10:332
3384991715,1cyclictest0-21swapper/212:20:192
3384991715,1cyclictest0-21swapper/212:08:032
3384991714,2cyclictest749-21df08:00:152
3384991714,2cyclictest5212-21/usr/sbin/munin10:00:192
3384991714,2cyclictest30983-21python309:50:002
3384991714,2cyclictest30729-21ps08:50:192
3384991714,2cyclictest30122-21/usr/sbin/munin10:45:112
3384991714,2cyclictest19866-21sessionclean07:39:012
3384991714,2cyclictest19866-21sessionclean07:39:002
3384991714,2cyclictest11436-21idleruntime-cro08:20:002
3384991714,2cyclictest1077-21df10:50:142
3384991714,1cyclictest0-21swapper/209:20:292
3384991713,1cyclictest0-21swapper/209:35:192
338499171,15cyclictest2220-21cpuspeed_turbos11:50:132
338499170,2cyclictest28121-21smtpd09:44:202
338499170,2cyclictest27583-21pzem_power11:35:202
338499170,2cyclictest15086-21cpuspeed_turbos08:25:142
338499170,2cyclictest11015-21pzem_current11:05:212
338499170,2cyclictest10590-21date10:10:002
338499170,16cyclictest8255-21cat12:00:112
338499170,16cyclictest6302-21expr09:05:152
338499170,16cyclictest3976-21H222:10:212
338499170,16cyclictest32448-21which09:50:152
338499170,16cyclictest30889-21wc07:55:172
338499170,16cyclictest29672-21grep07:55:012
338499170,16cyclictest26916-21sed12:35:002
338499170,16cyclictest26826-21expr08:45:132
338499170,16cyclictest12365-21pzem10:10:212
338499170,16cyclictest0-21swapper/211:24:492
3383991715,1cyclictest4266-21timerwakeupswit11:50:221
3383991715,1cyclictest29125-21cut11:40:141
3383991715,1cyclictest0-21swapper/108:35:161
3383991714,3cyclictest0-21swapper/107:43:281
3383991714,2cyclictest9970-21expr11:05:141
3383991714,2cyclictest2271-21munin-plugin-st09:00:011
3383991714,2cyclictest18425-21idleruntime08:30:161
3383991714,2cyclictest15394-21cstates07:30:141
3383991714,2cyclictest13097-21pzem_energy09:15:191
3383991713,3cyclictest0-21swapper/110:45:171
338399171,2cyclictest6760-21readlink11:55:211
338399170,2cyclictest455-21plymouthd11:45:221
338399170,2cyclictest26783-21find10:39:001
338399170,2cyclictest19021-21apache_processe12:20:111
338399170,2cyclictest18694-21if_enp1s011:20:151
338399170,17cyclictest6059-21cpuspeed_turbos09:05:131
338399170,16cyclictest8660-21cron11:05:001
338399170,16cyclictest27340-21ps09:40:201
338399170,16cyclictest26748-21cron12:35:001
338399170,16cyclictest21462-21grep09:30:171
338399170,16cyclictest2007-21systemd-journal08:42:111
338399170,16cyclictest17926-21expr09:25:141
338399170,16cyclictest16744-21snapd10:57:491
338399170,16cyclictest10219-21ntpq09:10:201
338399170,16cyclictest0-21swapper/107:26:471
338299172,1cyclictest265802sleep010:37:020
338299172,1cyclictest19645-21chrt08:30:480
3382991715,1cyclictest0-21swapper/010:50:170
3382991714,2cyclictest7710-21ntp_offset08:10:180
3382991714,2cyclictest5434-21sed10:55:220
3382991714,2cyclictest24984-21sed11:30:220
3382991714,2cyclictest21514-21fschecks_time07:40:140
3382991714,2cyclictest1856-21systemd-udevd07:36:520
3382991714,2cyclictest1856-21systemd-udevd07:36:520
3382991714,2cyclictest1856-21systemd-udevd07:12:520
3382991714,2cyclictest17270-21sed10:20:160
3382991714,2cyclictest13639-21cron09:17:010
3382991714,2cyclictest1175-21timerwakeupswit11:45:220
338299171,15cyclictest24515-21cut09:35:220
338299170,2cyclictest7250-21cut07:15:140
338299170,2cyclictest46662chrt09:58:340
338299170,2cyclictest23996-21apache_accesses07:45:130
338299170,2cyclictest22174-21expr10:30:130
338299170,2cyclictest19341-21proc_pri11:20:190
338299170,2cyclictest1780-21cat09:55:000
338299170,2cyclictest1351-21lxd09:08:400
338299170,1cyclictest0-21swapper/010:10:140
338299170,16cyclictest8830-21/usr/sbin/munin09:10:180
338299170,16cyclictest870-21systemd-logind08:46:520
338299170,16cyclictest870-21systemd-logind07:56:520
338299170,16cyclictest4766-21munin-run11:55:010
338299170,16cyclictest3450-21gsd-color08:25:160
338299170,16cyclictest31369-21date09:50:010
338299170,16cyclictest30502-21expr10:45:140
338299170,16cyclictest28708-21mailstats07:50:190
338299170,16cyclictest15987-21grep07:30:190
338299170,16cyclictest13757-21/usr/sbin/munin11:10:180
338299170,16cyclictest0-21swapper/007:21:080
3384991614,1cyclictest6714-21expr08:10:142
3384991614,1cyclictest2663-21cat09:55:132
3384991614,1cyclictest0-21swapper/211:35:002
3384991614,1cyclictest0-21swapper/210:40:182
3384991614,1cyclictest0-21swapper/210:35:142
3384991614,1cyclictest0-21swapper/210:30:142
3384991614,1cyclictest0-21swapper/207:45:172
3384991614,1cyclictest0-21swapper/207:30:162
3384991612,3cyclictest15402-21timerwakeupswit12:10:212
338499160,2cyclictest27757-21expr12:35:132
338499160,2cyclictest11139-21cron09:15:002
338499160,1cyclictest0-21swapper/208:05:162
338499160,15cyclictest8954-21perf07:20:012
338499160,15cyclictest6312-21needreboot11:55:182
338499160,15cyclictest4099-21H222:10:212
338499160,15cyclictest307-21missed_timers11:45:182
338499160,15cyclictest17918-21cstates08:30:152
338499160,15cyclictest15827-21hddtemp_smartct11:15:132
338499160,15cyclictest13756-21tr10:15:122
338499160,15cyclictest0-21swapper/211:40:152
338499160,15cyclictest0-21swapper/211:10:132
338499160,15cyclictest0-21swapper/210:25:132
338499160,15cyclictest0-21swapper/209:25:202
338499160,15cyclictest0-21swapper/209:10:152
338499160,15cyclictest0-21swapper/209:00:152
338499160,15cyclictest0-21swapper/208:40:132
338499160,15cyclictest0-21swapper/208:35:202
3383991614,1cyclictest0-21swapper/112:20:001
3383991614,1cyclictest0-21swapper/111:30:091
3383991614,1cyclictest0-21swapper/111:25:131
3383991614,1cyclictest0-21swapper/111:15:151
3383991614,1cyclictest0-21swapper/111:10:141
3383991614,1cyclictest0-21swapper/110:50:171
3383991614,1cyclictest0-21swapper/110:40:161
3383991614,1cyclictest0-21swapper/109:45:201
3383991614,1cyclictest0-21swapper/109:00:141
3383991614,1cyclictest0-21swapper/108:15:201
3383991614,1cyclictest0-21swapper/108:10:011
3383991614,1cyclictest0-21swapper/107:15:161
3383991613,2cyclictest8586-21fschecks_count10:05:141
3383991613,2cyclictest22960-21/usr/sbin/munin09:35:221
3383991613,2cyclictest18411-21if_err_enp1s007:35:191
3383991613,2cyclictest18411-21if_err_enp1s007:35:181
338399160,1cyclictest2338-21cpuspeed_turbos09:55:121
338399160,1cyclictest0-21swapper/110:00:171
338399160,15cyclictest29580-21expr08:50:141
338399160,15cyclictest26827-21cat11:35:151
338399160,15cyclictest22261-21expr12:25:141
338399160,15cyclictest22261-21expr12:25:141
338399160,15cyclictest19069-21apache_processe10:25:111
338399160,15cyclictest15988-21mailstats09:20:211
338399160,15cyclictest14914-21/usr/sbin/munin08:25:161
338399160,15cyclictest11159-21expr10:10:141
338399160,15cyclictest0-21swapper/112:35:071
338399160,15cyclictest0-21swapper/112:05:151
338399160,15cyclictest0-21swapper/110:20:131
338399160,15cyclictest0-21swapper/109:50:171
338399160,15cyclictest0-21swapper/108:45:131
338399160,15cyclictest0-21swapper/107:50:121
338399160,15cyclictest0-21swapper/107:45:021
3382991614,1cyclictest0-21swapper/012:26:100
3382991614,1cyclictest0-21swapper/012:26:090
3382991614,1cyclictest0-21swapper/012:15:100
3382991614,1cyclictest0-21swapper/012:10:150
3382991614,1cyclictest0-21swapper/011:55:180
3382991614,1cyclictest0-21swapper/011:05:010
3382991614,1cyclictest0-21swapper/010:00:160
3382991614,1cyclictest0-21swapper/009:00:160
3382991614,1cyclictest0-21swapper/008:45:010
3382991614,1cyclictest0-21swapper/008:35:150
338299160,2cyclictest24866-21expr12:30:130
338299160,2cyclictest14109-21chrt07:26:250
338299160,15cyclictest296212chrt10:43:510
338299160,15cyclictest27173-21grep09:40:180
338299160,15cyclictest1829-21systemd-journal11:35:020
338299160,15cyclictest1656-21chrt08:55:400
338299160,15cyclictest14404-21cat10:15:150
338299160,15cyclictest14387-21apt-get09:20:130
338299160,15cyclictest11653-21cut08:20:000
338299160,15cyclictest0-21swapper/012:00:190
338299160,15cyclictest0-21swapper/011:25:130
338299160,15cyclictest0-21swapper/010:25:140
338299160,15cyclictest0-21swapper/008:05:150
338499150,15cyclictest0-21swapper/211:00:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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