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2026-05-23 - 20:54
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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 Sat May 23, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
707399236,13cyclictest0-21swapper/111:23:211
707499220,17cyclictest0-21swapper/210:43:512
707399220,21cyclictest21-21ksoftirqd/109:50:181
707299210,18cyclictest0-21swapper/009:43:350
707499202,17cyclictest3986-21H222:10:212
7072992018,1cyclictest0-21swapper/012:36:190
7072992012,6cyclictest0-21swapper/008:04:040
7074991916,2cyclictest3188-21cut08:55:192
7074991915,3cyclictest0-21swapper/210:22:532
7074991914,3cyclictest0-21swapper/208:47:472
707399193,1cyclictest0-21swapper/109:22:541
7073991917,1cyclictest3976-21H222:10:211
707399190,18cyclictest3981-21H222:10:211
707399190,17cyclictest12879-21cpuspeed_turbos12:05:141
707299193,1cyclictest23403-21fw_packets11:25:140
7072991915,3cyclictest0-21swapper/008:33:590
707299190,18cyclictest0-21swapper/007:36:010
707499182,15cyclictest2707-21nfsd411:45:182
707499182,15cyclictest0-21swapper/211:52:582
7074991814,3cyclictest3987-21H222:10:212
7074991814,3cyclictest0-21swapper/211:37:582
7074991813,1cyclictest0-21swapper/209:18:382
707499180,2cyclictest3976-21H222:10:212
707499180,17cyclictest3987-21H222:10:212
707499180,17cyclictest2872-21systemd-logind08:32:512
707499180,17cyclictest0-21swapper/207:20:142
707399182,1cyclictest15167-21fschecks_time11:10:151
707399182,15cyclictest408-21grep10:45:151
7073991816,1cyclictest0-21swapper/110:10:141
7073991816,1cyclictest0-21swapper/110:10:141
7073991816,1cyclictest0-21swapper/109:16:431
7073991816,1cyclictest0-21swapper/108:44:531
7073991814,3cyclictest3989-21H222:10:211
7073991814,3cyclictest19768-21cron08:30:011
707399181,1cyclictest3976-21H222:10:211
707399180,3cyclictest14499-21snapd12:25:371
707399180,17cyclictest870-21systemd-logind09:13:511
707399180,16cyclictest5511-21python310:55:001
707299182,15cyclictest4785-21timerwakeupswit10:50:210
7072991816,1cyclictest9-21ksoftirqd/007:46:080
7072991816,1cyclictest18863-21ntp_offset08:25:190
7072991816,1cyclictest0-21swapper/010:35:240
7072991816,1cyclictest0-21swapper/010:10:160
7072991816,1cyclictest0-21swapper/010:10:150
7072991815,2cyclictest1482-21date08:55:010
7072991815,2cyclictest10844-21if_enp1s012:00:150
707299181,2cyclictest17983-21idleruntime-cro12:15:000
707299181,16cyclictest29320-21cut11:35:180
707299180,2cyclictest3981-21H222:10:210
707299180,17cyclictest19303-21nvmesmart_nvme010:20:200
707299180,17cyclictest17119-21cmp08:25:010
707299180,17cyclictest0-21swapper/010:31:490
707299180,15cyclictest27922-21cat11:35:010
707499172,1cyclictest0-21swapper/207:15:192
7074991715,1cyclictest28-21ksoftirqd/207:35:302
7074991715,1cyclictest128582sleep209:11:132
7074991715,1cyclictest0-21swapper/207:45:232
7074991714,2cyclictest3989-21H222:10:212
7074991714,2cyclictest3987-21H222:10:212
7074991714,2cyclictest31920-21df_inode08:50:132
7074991714,2cyclictest31038-21if_lxdbr009:45:172
7074991714,2cyclictest31038-21if_lxdbr009:45:172
7074991714,2cyclictest22907-21cron10:30:002
7074991714,2cyclictest2213-21proxymap07:55:422
7074991714,2cyclictest22077-21proc_pri10:25:212
7074991714,2cyclictest20221-21needreboot09:25:192
7074991714,2cyclictest19313-21df07:30:142
7074991714,2cyclictest1-21systemd09:06:512
7074991714,2cyclictest10836-21expr10:05:182
7074991714,2cyclictest10316-21grep08:10:202
7074991714,1cyclictest0-21swapper/211:40:182
707499171,15cyclictest27649-21cat10:35:212
707499171,15cyclictest14495-21snapd08:42:582
707499170,2cyclictest4099-21H222:10:212
707499170,2cyclictest3987-21H222:10:212
707499170,2cyclictest3985-21H222:10:212
707499170,2cyclictest3983-21H222:10:212
707499170,2cyclictest3983-21H222:10:212
707499170,2cyclictest24499-21/usr/sbin/munin09:35:162
707499170,2cyclictest2069-21systemd-udevd09:58:512
707499170,2cyclictest16889-21grep12:10:162
707499170,2cyclictest1343-21awk09:50:162
707499170,2cyclictest12750-21/usr/sbin/munin12:05:122
707499170,1cyclictest0-21swapper/208:22:562
707499170,16cyclictest4818-21cat10:50:222
707499170,16cyclictest3989-21H222:10:212
707499170,16cyclictest27402-21/usr/sbin/munin09:40:142
707499170,16cyclictest25990-21expr11:30:132
707499170,16cyclictest18560-21grep11:15:172
707499170,16cyclictest16646-21memory07:25:192
707499170,16cyclictest16547-21nvmesmart_nvme010:15:202
707499170,16cyclictest11600-21apache_volume11:05:122
7073991716,0cyclictest0-21swapper/111:06:331
7073991715,1cyclictest0-21swapper/112:00:131
7073991715,1cyclictest0-21swapper/109:30:131
7073991715,1cyclictest0-21swapper/108:55:141
7073991714,2cyclictest7806-21expr07:10:141
7073991714,2cyclictest5850-21apt-config10:55:011
7073991714,2cyclictest3985-21H222:10:211
7073991714,2cyclictest3981-21H222:10:211
7073991714,2cyclictest27778-21cat11:35:011
7073991714,2cyclictest18509-21find07:30:011
707399171,15cyclictest21-21ksoftirqd/107:15:101
707399171,15cyclictest11069-21chrt08:12:581
707399170,3cyclictest0-21swapper/110:20:231
707399170,2cyclictest870-21systemd-logind07:58:521
707399170,2cyclictest7209-21date09:05:011
707399170,2cyclictest3987-21H222:10:211
707399170,2cyclictest3985-21H222:10:211
707399170,2cyclictest3414-21master10:01:191
707399170,2cyclictest2069-21systemd-udevd09:06:521
707399170,2cyclictest0-21swapper/107:30:001
707399170,16cyclictest455-21plymouthd09:40:211
707399170,16cyclictest3987-21H222:10:211
707399170,16cyclictest28523-21chrt10:36:011
707399170,16cyclictest24492-21tail10:30:191
707399170,16cyclictest22971-21smartctl12:20:191
707399170,16cyclictest22971-21smartctl12:20:191
707399170,16cyclictest1653-21grep11:45:131
707399170,16cyclictest0-21swapper/107:20:341
707399170,15cyclictest4099-21H222:10:211
707399170,15cyclictest3991-21H222:10:211
707399170,15cyclictest3976-21H222:10:211
707399170,15cyclictest0-21swapper/111:26:241
707299172,1cyclictest0-21swapper/010:15:220
7072991715,1cyclictest0-21swapper/010:55:210
7072991714,2cyclictest31432-21expr11:40:130
7072991714,2cyclictest28382-21ntp_kernel_pll_12:30:180
7072991714,2cyclictest21824-21netstat10:25:180
7072991714,2cyclictest17717-21ntp_kernel_err09:20:190
7072991714,2cyclictest1351-21lxd12:18:420
7072991714,2cyclictest1220-21apache211:22:410
7072991714,2cyclictest0-21swapper/008:05:220
707299171,1cyclictest6148-21cut10:00:010
707299171,15cyclictest0-21swapper/007:20:230
707299170,2cyclictest9252-21timerwakeupswit07:10:210
707299170,2cyclictest3987-21H222:10:210
707299170,16cyclictest6786-21sshd11:54:050
707299170,16cyclictest6003-21head09:00:160
707299170,16cyclictest3987-21H222:10:210
707299170,16cyclictest3985-21H222:10:210
707299170,16cyclictest3981-21H222:10:210
707299170,16cyclictest3976-21H222:10:210
707299170,16cyclictest3976-21H222:10:210
707299170,16cyclictest3976-21H222:10:210
707299170,16cyclictest26185-21cat09:35:220
707299170,16cyclictest26143-21sed07:40:220
707299170,16cyclictest19852-21sed07:30:160
707299170,16cyclictest18153-21kernelversion11:15:170
707299170,16cyclictest12597-21sed11:05:180
7074991614,1cyclictest21822-21cpu09:30:132
7074991614,1cyclictest0-21swapper/212:35:142
7074991614,1cyclictest0-21swapper/212:30:212
7074991614,1cyclictest0-21swapper/212:25:142
7074991614,1cyclictest0-21swapper/212:04:072
7074991614,1cyclictest0-21swapper/207:10:052
707499160,2cyclictest0-21swapper/209:25:012
707499160,1cyclictest18780-21apt-get12:15:032
707499160,1cyclictest0-21swapper/208:35:212
707499160,15cyclictest6071-40apt-check10:55:092
707499160,15cyclictest32182-21grep10:45:152
707499160,15cyclictest3053-21systemd-logind11:56:522
707499160,15cyclictest0-21swapper/210:10:162
707499160,15cyclictest0-21swapper/210:10:152
707499160,15cyclictest0-21swapper/207:50:192
7073991614,1cyclictest30192-21expr07:50:141
7073991614,1cyclictest0-21swapper/112:10:181
7073991614,1cyclictest0-21swapper/111:00:111
7073991614,1cyclictest0-21swapper/110:25:141
7073991614,1cyclictest0-21swapper/110:05:141
7073991614,1cyclictest0-21swapper/109:55:171
7073991614,1cyclictest0-21swapper/109:45:041
7073991614,1cyclictest0-21swapper/109:45:031
7073991614,1cyclictest0-21swapper/109:25:141
7073991614,1cyclictest0-21swapper/108:05:181
7073991613,2cyclictest28938-21timerwakeupswit07:45:231
707399160,1cyclictest0-21swapper/109:35:151
707399160,15cyclictest4798-21cpuspeed_turbos11:50:131
707399160,15cyclictest30679-21awk10:40:181
707399160,15cyclictest27614-21grep12:30:151
707399160,15cyclictest0-21swapper/112:35:131
707399160,15cyclictest0-21swapper/112:17:131
707399160,15cyclictest0-21swapper/110:15:221
707399160,15cyclictest0-21swapper/108:00:141
7072991615,1cyclictest9-21ksoftirqd/009:50:140
7072991614,1cyclictest9-21ksoftirqd/011:57:590
7072991614,1cyclictest9-21ksoftirqd/007:50:130
7072991614,1cyclictest0-21swapper/011:45:190
7072991614,1cyclictest0-21swapper/009:30:170
7072991613,2cyclictest32165-21apache_processe10:45:130
707299161,1cyclictest0-21swapper/011:00:150
707299160,2cyclictest7379-21df10:00:160
707299160,1cyclictest17991-21python307:30:010
707299160,15cyclictest30187-21cat08:45:220
707299160,15cyclictest26031-21cpuspeed_turbos08:40:140
707299160,15cyclictest25492-21nfsd412:25:170
707299160,15cyclictest14305-21http_loadtime09:15:150
707299160,15cyclictest0-21swapper/010:05:180
707299160,15cyclictest0-21swapper/009:25:150
707299160,15cyclictest0-21swapper/008:10:140
7074991513,1cyclictest0-21swapper/210:00:152
7072991513,1cyclictest0-21swapper/009:45:100
7072991513,1cyclictest0-21swapper/009:45:090
707299150,1cyclictest0-21swapper/007:55:150
707299150,15cyclictest0-21swapper/012:20:100
707299150,15cyclictest0-21swapper/012:20:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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