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2026-05-23 - 21:01
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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 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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