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2026-01-01 - 00:58
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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 Wed Dec 31, 2025 12:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31758993028,1cyclictest0-21swapper/007:30:240
31758992524,1cyclictest28603-21mii-tool11:50:160
3176199230,22cyclictest0-21swapper/211:30:172
3175899234,18cyclictest11425-21mailstats08:25:210
31758992321,1cyclictest19563-21cut08:40:170
3176199220,0cyclictest0-21swapper/211:45:162
3176199212,18cyclictest0-21swapper/208:50:452
3176199210,5cyclictest0-21swapper/211:23:202
3176199210,20cyclictest0-21swapper/212:28:552
3175999214,11cyclictest0-21swapper/111:25:521
3175899210,3cyclictest0-21swapper/011:37:190
3175899210,3cyclictest0-21swapper/011:37:190
31761992016,3cyclictest3987-21H222:10:212
3176199200,5cyclictest0-21swapper/211:55:222
31759992011,0cyclictest0-21swapper/112:29:371
3175899204,15cyclictest0-21swapper/009:28:410
3176199192,1cyclictest119782sleep212:16:252
3176199192,1cyclictest0-21swapper/208:58:162
3176199192,1cyclictest0-21swapper/208:58:162
31761991914,1cyclictest0-21swapper/210:00:222
3176199191,17cyclictest0-21swapper/209:23:062
3176199190,3cyclictest0-21swapper/211:29:042
3176199190,1cyclictest0-21swapper/207:26:462
3176199190,18cyclictest0-21swapper/207:39:102
3175999193,15cyclictest21-21ksoftirqd/112:15:591
3175999192,1cyclictest3983-21H222:10:211
3175999192,1cyclictest0-21swapper/110:55:071
31759991915,3cyclictest0-21swapper/109:52:131
3175899194,1cyclictest0-21swapper/007:20:150
3175899192,1cyclictest0-21swapper/010:22:310
3175899192,16cyclictest0-21swapper/009:48:120
31758991919,0cyclictest0-21swapper/010:28:520
31758991916,2cyclictest22513-21mailstats08:45:230
31758991915,3cyclictest0-21swapper/008:07:110
3175899190,5cyclictest0-21swapper/010:39:010
3175899190,3cyclictest0-21swapper/012:15:010
3175899190,0cyclictest0-21swapper/012:09:000
3176199182,15cyclictest23173-21http_loadtime07:50:162
3176199182,15cyclictest0-21swapper/210:21:212
31761991816,1cyclictest0-21swapper/208:17:302
31761991816,1cyclictest0-21swapper/207:24:292
31761991814,3cyclictest0-21swapper/209:27:152
31761991814,3cyclictest0-21swapper/207:13:482
3176199180,3cyclictest21371-21grep10:40:132
3176199180,3cyclictest14912-21munin-run08:35:002
3176199180,3cyclictest14912-21munin-run08:35:002
3176199180,17cyclictest9123-21pickup10:38:452
3176199180,17cyclictest23797-21awk09:45:182
3176199180,15cyclictest15239-21cat12:25:012
3176199180,15cyclictest0-21swapper/212:30:072
3176199180,15cyclictest0-21swapper/209:55:152
3175999182,2cyclictest863-21avahi-daemon09:10:231
31759991815,1cyclictest0-21swapper/109:00:551
31759991814,3cyclictest399-20systemd-journal10:05:401
31759991814,3cyclictest20967-21cat10:40:011
3175999181,16cyclictest0-21swapper/107:50:191
3175999180,2cyclictest9419-21latency_hist08:25:001
3175999180,17cyclictest4099-21H222:10:211
3175999180,17cyclictest3351-21lxd08:48:411
3175899182,15cyclictest27696-21sed11:50:010
3175899182,15cyclictest164512sleep009:34:210
31758991815,2cyclictest21442-21cpuspeed_turbos10:40:130
31758991815,2cyclictest17155-21mailstats10:30:220
31758991814,3cyclictest2601-21awk12:00:170
31758991814,3cyclictest2601-21awk12:00:160
31758991814,3cyclictest0-21swapper/008:20:580
3175899181,16cyclictest5346-21chrt09:11:550
3175899180,3cyclictest2728-21/usr/sbin/munin10:05:190
3175899180,2cyclictest3987-21H222:10:210
3175899180,17cyclictest29561-21find09:55:240
31761991714,2cyclictest993-21dbus-daemon09:38:592
31761991714,2cyclictest8514-21apache_accesses11:15:122
31761991714,2cyclictest5562-21needreboot10:10:192
31761991714,2cyclictest4441-21cpuspeed_turbos12:05:132
31761991714,2cyclictest18935-21/usr/sbin/munin08:40:152
31761991714,2cyclictest1085-21gdbus09:30:222
31761991713,3cyclictest3983-21H222:10:212
3176199171,1cyclictest0-21swapper/209:00:192
3176199171,15cyclictest28059-21cat08:00:152
3176199171,15cyclictest21233-21cat08:45:152
3176199171,15cyclictest13586-21taskset07:34:152
3176199171,15cyclictest0-21swapper/208:25:152
3176199171,15cyclictest0-21swapper/207:40:122
3176199170,2cyclictest3241-21/usr/sbin/munin07:15:142
3176199170,2cyclictest31816-21munin-run10:59:592
3176199170,1cyclictest0-21swapper/210:53:412
3176199170,16cyclictest8337-21wc11:15:012
3176199170,16cyclictest5989-21/usr/sbin/munin09:15:132
3176199170,16cyclictest32277-21tr09:05:122
3176199170,16cyclictest27988-21grep11:50:152
3176199170,16cyclictest25854-21fschecks_count07:55:132
3176199170,16cyclictest25287-21expr10:45:172
3176199170,16cyclictest19992-21cpuspeed_turbos09:40:132
3176199170,16cyclictest19906-21cut07:45:122
3176199170,16cyclictest17905-21munin-run10:35:002
3176199170,16cyclictest17816-21perf08:40:012
3176199170,16cyclictest1600-21expr10:05:142
3176199170,16cyclictest1523-21lxd09:10:412
3176199170,15cyclictest0-21swapper/210:25:152
3176199170,0cyclictest0-21swapper/212:13:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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