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2025-12-20 - 22:24
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sat Dec 20, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
915614992825,1cyclictest0-21swapper/308:20:003
915614992722,3cyclictest1098383-21sleep09:30:013
915614992521,1cyclictest0-21swapper/309:45:013
915614992219,1cyclictest0-21swapper/308:35:203
915614992118,1cyclictest0-21swapper/307:45:003
91561499211,15cyclictest1233977-21turbostat11:15:003
915614992017,1cyclictest0-21swapper/311:55:013
915614992017,1cyclictest0-21swapper/311:00:253
915614992017,1cyclictest0-21swapper/308:55:013
915614992016,1cyclictest0-21swapper/311:30:003
915614991917,1cyclictest0-21swapper/307:10:003
915614991916,1cyclictest0-21swapper/312:20:003
915614991916,1cyclictest0-21swapper/312:05:143
915614991916,1cyclictest0-21swapper/310:24:593
915614991916,1cyclictest0-21swapper/309:50:213
915614991916,1cyclictest0-21swapper/308:10:223
915614991916,1cyclictest0-21swapper/307:45:183
915614991916,1cyclictest0-21swapper/307:15:223
11762962198,1sleep30-21swapper/310:30:123
915614991816,1cyclictest0-21swapper/310:05:213
915614991816,1cyclictest0-21swapper/307:15:013
915614991815,1cyclictest0-21swapper/312:25:193
915614991815,1cyclictest0-21swapper/311:50:003
915614991815,1cyclictest0-21swapper/309:10:013
915614991815,1cyclictest0-21swapper/308:55:173
915614991815,1cyclictest0-21swapper/308:05:163
91561499181,13cyclictest1241250-21taskset11:20:133
91561499181,13cyclictest1026996-21taskset08:30:263
9633562172,7sleep2963389-21apt-get07:45:142
915614991715,1cyclictest0-21swapper/311:15:163
915614991715,1cyclictest0-21swapper/310:55:193
915614991715,1cyclictest0-21swapper/308:45:173
915614991714,1cyclictest0-21swapper/312:20:193
915614991714,1cyclictest0-21swapper/310:00:243
91561499171,13cyclictest1156482-21turbostat10:15:003
91561499171,12cyclictest1292628-21taskset12:00:123
91561499171,12cyclictest1221519-21taskset11:05:143
91561499171,12cyclictest1221519-21taskset11:05:133
91561499171,12cyclictest1207893-21taskset10:51:003
91561499171,11cyclictest1130957-21taskset09:55:003
307598170,8rtkit-daemon316-21systemd-udevd07:39:440
915614991614,1cyclictest0-21swapper/309:40:003
915614991614,1cyclictest0-21swapper/308:25:183
915614991614,1cyclictest0-21swapper/307:55:243
915614991614,1cyclictest0-21swapper/307:40:013
915614991613,1cyclictest0-21swapper/310:25:193
915614991613,1cyclictest0-21swapper/308:40:183
915614991613,1cyclictest0-21swapper/307:54:593
915614991613,1cyclictest0-21swapper/307:35:013
915614991613,1cyclictest0-21swapper/307:25:273
91561499161,12cyclictest1332179-21taskset12:30:173
91561499161,12cyclictest1286548-21taskset11:55:153
91561499161,12cyclictest1182715-21taskset10:35:133
91561499161,12cyclictest1104805-21turbostat09:35:013
91561499161,12cyclictest1060770-21taskset09:00:143
91561499160,13cyclictest936038-21chrt07:20:213
91561499160,12cyclictest1260155-21taskset11:34:563
915614991513,1cyclictest0-21swapper/312:35:253
915614991513,1cyclictest0-21swapper/312:10:233
915614991513,1cyclictest0-21swapper/310:15:193
915614991513,1cyclictest0-21swapper/309:15:003
915614991512,1cyclictest0-21swapper/311:40:193
915614991512,1cyclictest0-21swapper/308:20:173
915614991512,1cyclictest0-21swapper/308:00:153
91561499151,11cyclictest1195006-21taskset10:40:303
915614991511,1cyclictest0-21swapper/309:20:133
915614991412,1cyclictest0-21swapper/309:15:153
91561499141,11cyclictest1260622-21taskset11:35:153
91561499141,11cyclictest1124055-21taskset09:46:393
915614991411,1cyclictest0-21swapper/310:45:133
12344542140,10sleep01233982-21apt-get11:15:010
10693512140,2sleep10-21swapper/109:05:191
307598130,9rtkit-daemon217-21plymouthd07:45:190
307598130,9rtkit-daemon1305680-21munin-node12:10:102
307598130,8rtkit-daemon714-21snmpd07:26:240
307598130,8rtkit-daemon1033648-21unixbench_multi08:35:260
12925922131,2sleep20-21swapper/212:00:112
12613762130,10sleep11262329-21kthreadcore11:35:191
10202542131,9sleep21014778-21/usr/sbin/munin08:25:242
9963952120,9sleep2997245-21tr08:10:182
307598120,3rtkit-daemon922154-21munin-node08:06:140
307598120,2rtkit-daemon217-21plymouthd07:32:300
9697562111,6sleep1969789-21apt-get07:50:141
307598110,7rtkit-daemon493-21gmain09:00:291
307598110,6rtkit-daemon316-21systemd-udevd07:15:440
307598110,6rtkit-daemon1266924-21apt-get11:40:142
307598110,4rtkit-daemon444-21avahi-daemon07:52:300
13264052110,4sleep01327956-21grep12:25:180
13108092110,8sleep01310947-21nfs4_client12:10:200
11633812111,4sleep11163581-21hddtemp_smartct10:20:171
11171592110,7sleep11117273-21ls09:40:261
9567562100,7sleep0956865-21/usr/sbin/munin07:40:150
9440562103,1sleep10-21swapper/107:30:171
307598100,6rtkit-daemon3256-21sendmail-mta11:48:082
307598100,6rtkit-daemon316-21systemd-udevd12:35:442
307598100,6rtkit-daemon217-21plymouthd08:24:130
307598100,5rtkit-daemon1118204-21apt-get09:45:131
307598100,2rtkit-daemon217-21plymouthd12:34:102
13176822101,5sleep01317926-21users12:15:250
12287562101,6sleep01229810-21cat11:10:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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