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2026-06-24 - 21:19
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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 Jun 24, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7648992915,8cyclictest23761-21seq07:38:020
765899252,18cyclictest0-21swapper/211:14:172
765899250,24cyclictest28-21ksoftirqd/207:10:212
765899250,24cyclictest28-21ksoftirqd/207:10:212
765899240,23cyclictest0-21swapper/211:30:012
7648992414,6cyclictest0-21swapper/007:56:000
7658992323,0cyclictest28-21ksoftirqd/207:34:072
765899230,22cyclictest0-21swapper/211:40:042
765899230,22cyclictest0-21swapper/210:49:042
764899235,14cyclictest9-21ksoftirqd/011:33:490
764899231,21cyclictest4007-21switchtime09:50:210
764899230,2cyclictest23103-21expr09:30:140
764899230,22cyclictest18038-21expr11:15:140
764899230,22cyclictest13512-21if_enp1s008:15:160
764899230,22cyclictest0-21swapper/008:20:150
764899230,1cyclictest0-21swapper/009:25:180
765899225,15cyclictest0-21swapper/207:38:282
7658992222,0cyclictest0-21swapper/210:57:002
765899220,22cyclictest28-21ksoftirqd/211:30:442
765899220,21cyclictest0-21swapper/210:43:002
765899220,21cyclictest0-21swapper/210:27:522
765899220,21cyclictest0-21swapper/209:42:022
765899220,1cyclictest28-21ksoftirqd/212:22:332
765399220,18cyclictest0-21swapper/109:03:291
764899222,1cyclictest5985-21taskset10:52:160
764899222,19cyclictest0-21swapper/008:45:140
7648992214,7cyclictest20678-21timerandwakeup07:30:210
7648992214,7cyclictest12651-21expr11:05:130
764899220,2cyclictest13143-21sed07:20:010
764899220,21cyclictest23979-21apt-get08:35:140
764899220,21cyclictest18396-21mv08:25:010
764899220,21cyclictest17296-21sed07:25:170
764899220,16cyclictest5602-21cut09:00:010
764899220,14cyclictest0-21swapper/010:40:410
765899212,18cyclictest0-21swapper/210:12:182
7658992121,0cyclictest0-21swapper/211:57:472
765899210,21cyclictest0-21swapper/210:32:122
7653992111,0cyclictest0-21swapper/112:05:541
7648992114,6cyclictest127872sleep012:04:490
7648992114,6cyclictest0-21swapper/010:55:110
7648992114,2cyclictest3450-21gsd-color12:25:510
7648992114,1cyclictest0-21swapper/011:51:380
7648992114,0cyclictest0-21swapper/012:30:390
7648992114,0cyclictest0-21swapper/012:05:230
7648992114,0cyclictest0-21swapper/011:27:570
7648992114,0cyclictest0-21swapper/010:29:200
7648992114,0cyclictest0-21swapper/010:23:120
7648992113,1cyclictest0-21swapper/009:05:220
7648992113,1cyclictest0-21swapper/008:53:310
7648992113,1cyclictest0-21swapper/008:05:150
764899210,2cyclictest15507-21ls11:10:130
764899210,20cyclictest17510-21df09:20:150
764899210,20cyclictest0-21swapper/012:20:010
764899210,20cyclictest0-21swapper/011:20:170
764899210,20cyclictest0-21swapper/010:45:200
764899210,20cyclictest0-21swapper/010:31:140
764899210,16cyclictest993-21dbus-daemon11:38:590
764899210,16cyclictest11437-21/usr/sbin/munin09:10:110
764899210,16cyclictest1048-21sed09:45:210
764899210,15cyclictest0-21swapper/012:35:120
764899210,15cyclictest0-21swapper/011:40:170
765899205,14cyclictest28-21ksoftirqd/210:06:482
765899200,20cyclictest0-21swapper/211:52:172
765899200,0cyclictest0-21swapper/212:16:202
765399203,16cyclictest3053-21systemd-logind11:16:521
7653992010,10cyclictest0-21swapper/111:58:461
7648992014,5cyclictest0-21swapper/010:15:120
7648992014,5cyclictest0-21swapper/007:40:150
7648992014,1cyclictest7646-21cyclictest07:20:150
7648992014,0cyclictest0-21swapper/011:55:160
7648992014,0cyclictest0-21swapper/010:35:290
7648992013,1cyclictest0-21swapper/008:00:140
7648992012,2cyclictest22195-21latency08:30:160
7648992012,1cyclictest0-21swapper/010:10:190
764899200,1cyclictest0-21swapper/011:45:210
764899200,19cyclictest0-21swapper/012:20:000
764899200,19cyclictest0-21swapper/011:00:210
764899200,19cyclictest0-21swapper/009:35:230
764899200,15cyclictest14882-21smartctl09:15:150
764899200,15cyclictest12080-21pzem_energy10:05:200
764899200,14cyclictest0-21swapper/012:13:580
765899192,3cyclictest0-21swapper/209:50:142
765899191,1cyclictest28-21ksoftirqd/208:20:142
765899190,15cyclictest0-21swapper/211:38:042
765399192,16cyclictest0-21swapper/107:55:451
7653991917,1cyclictest0-21swapper/110:08:161
7653991916,2cyclictest993-21dbus-daemon12:20:201
7653991916,2cyclictest27297-21expr08:40:131
765399191,17cyclictest0-21swapper/111:36:431
765399190,18cyclictest29979-21cron10:40:001
765399190,18cyclictest0-21swapper/109:48:141
7648991913,2cyclictest7937-21/usr/sbin/munin07:10:160
7648991913,2cyclictest7937-21/usr/sbin/munin07:10:160
7648991912,1cyclictest30655-21expr07:50:130
764899190,14cyclictest0-21swapper/009:59:430
764899190,14cyclictest0-21swapper/009:00:100
765899182,15cyclictest0-21swapper/211:22:262
7658991816,1cyclictest271rcuc/209:25:162
7658991816,1cyclictest2021-21cpu11:45:122
7658991816,1cyclictest0-21swapper/211:06:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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