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2026-05-18 - 19:08
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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 rack1slot3.osadl.org (updated Mon May 18, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288644299130,12cyclictest0-21swapper/311:30:123
288644299130,11cyclictest0-21swapper/312:20:153
288644299130,11cyclictest0-21swapper/310:30:133
2886442991210,1cyclictest0-21swapper/309:55:113
288644299120,11cyclictest0-21swapper/309:25:003
288644299120,11cyclictest0-21swapper/308:35:003
288644299120,11cyclictest0-21swapper/307:37:513
288644299120,11cyclictest0-21swapper/307:35:003
2886442991111,0cyclictest0-21swapper/311:05:123
2886442991110,0cyclictest0-21swapper/310:00:133
288644299110,1cyclictest0-21swapper/308:05:173
288644299110,10cyclictest0-21swapper/311:40:193
288644299110,10cyclictest0-21swapper/309:35:133
288644299110,0cyclictest0-21swapper/310:35:173
288644299110,0cyclictest0-21swapper/309:00:123
288644299109,0cyclictest0-21swapper/312:15:133
288644299109,0cyclictest0-21swapper/311:47:543
288644299109,0cyclictest0-21swapper/310:45:213
2886442991010,0cyclictest0-21swapper/311:35:133
2886442991010,0cyclictest0-21swapper/308:30:003
288644299100,10cyclictest0-21swapper/312:10:183
288644299100,0cyclictest0-21swapper/311:55:023
288644299100,0cyclictest0-21swapper/311:00:213
288644299100,0cyclictest0-21swapper/310:25:173
288644299100,0cyclictest0-21swapper/309:25:183
288644299100,0cyclictest0-21swapper/308:15:113
28864429999,0cyclictest0-21swapper/312:30:133
28864429999,0cyclictest0-21swapper/312:25:123
28864429999,0cyclictest0-21swapper/312:05:213
28864429999,0cyclictest0-21swapper/310:20:133
28864429999,0cyclictest0-21swapper/310:05:143
28864429999,0cyclictest0-21swapper/309:10:203
28864429999,0cyclictest0-21swapper/307:55:163
28864429999,0cyclictest0-21swapper/307:15:123
28864429998,0cyclictest0-21swapper/311:15:023
28864429998,0cyclictest0-21swapper/308:10:143
28864429990,9cyclictest0-21swapper/309:05:183
28864429990,0cyclictest0-21swapper/308:50:153
28864429988,0cyclictest0-21swapper/311:25:163
28864429988,0cyclictest0-21swapper/309:55:013
28864429988,0cyclictest0-21swapper/309:45:043
28864429988,0cyclictest0-21swapper/307:47:263
28864429987,1cyclictest0-21swapper/308:30:133
28864429980,8cyclictest0-21swapper/307:29:563
28864429977,0cyclictest0-21swapper/312:00:013
28864429977,0cyclictest0-21swapper/310:50:113
28864429977,0cyclictest0-21swapper/307:40:133
28864429976,0cyclictest0-21swapper/309:35:003
28864429970,6cyclictest0-21swapper/310:15:193
28864429970,0cyclictest0-21swapper/311:00:023
2885939271,4sleep30-21swapper/307:05:213
28864429966,0cyclictest0-21swapper/310:40:133
28864429966,0cyclictest0-21swapper/310:10:433
28864429966,0cyclictest0-21swapper/308:55:193
28864429966,0cyclictest0-21swapper/307:52:273
28864429966,0cyclictest0-21swapper/307:20:113
28864429966,0cyclictest0-21swapper/307:10:153
28864429955,0cyclictest0-21swapper/309:15:183
28864429954,0cyclictest0-21swapper/311:20:163
2906973240,3sleep22907116-21grep08:00:162
28864429944,0cyclictest0-21swapper/311:15:113
28864429944,0cyclictest0-21swapper/308:41:243
28864429943,0cyclictest0-21swapper/309:40:033
28864429942,1cyclictest0-21swapper/308:45:133
28864429941,1cyclictest0-21swapper/308:00:113
28864429940,2cyclictest0-21swapper/312:35:133
28864429940,2cyclictest0-21swapper/312:00:123
28864429940,2cyclictest0-21swapper/308:20:133
2886150242,1sleep10-21swapper/107:07:561
2884653240,2sleep22884682-21aten_r1power_cu07:05:122
3018829230,2sleep03018906-21interrupts12:30:150
2959172230,1sleep22959198-21apt-get10:10:122
2949881233,0sleep0766-21snmpd09:48:330
2919511230,1sleep02919525-21apt-get08:35:010
2907335230,2sleep12907634-21awk08:00:191
2884807231,1sleep00-21swapper/007:05:150
3017667220,1sleep10-21swapper/112:25:481
3015053220,1sleep00-21swapper/012:20:230
3009970220,0sleep20-21swapper/212:10:162
3007443220,1sleep03007495-21aten2.4-expect12:05:140
3005086220,1sleep01-21systemd12:00:020
3000482220,0sleep00-21swapper/011:46:040
2997013221,0sleep20-21swapper/211:40:112
2993069220,1sleep12993268-21needreboot11:30:161
2987814220,0sleep00-21swapper/011:17:150
2982290220,1sleep12982561-21df_inode11:05:141
2976655220,1sleep00-21swapper/010:50:170
2975864220,1sleep22975890-21apt-get10:50:102
2971767220,1sleep22971953-21cpuspeed10:40:142
2971332220,0sleep20-21swapper/210:39:112
2970222220,1sleep12970372-21ntp_states10:35:181
2968104220,1sleep12968279-21ntpq10:30:161
2967967220,0sleep00-21swapper/010:30:150
2955104220,1sleep02955324-21expr10:00:130
2953078220,1sleep12953166-21irqstats09:55:151
2952025220,0sleep00-21swapper/009:54:050
2944517220,1sleep20-21swapper/209:35:182
2938503220,1sleep12938656-21mailstats09:20:161
2930673220,1sleep02930845-21python309:00:190
2911219220,1sleep22910181-21/usr/sbin/munin08:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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