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2025-12-15 - 00:53
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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 rackcslot0.osadl.org (updated Sun Dec 14, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65492134115,14sleep20-21swapper/219:06:188
65492134115,14sleep20-21swapper/219:06:188
6816211989,26sleep150-21swapper/1519:09:127
6816211989,26sleep150-21swapper/1519:09:127
1566721170,1sleep60-21swapper/622:48:3312
66692116101,11sleep100-21swapper/1019:08:032
66692116101,11sleep100-21swapper/1019:08:032
65802115102,9sleep120-21swapper/1219:06:454
65802115102,9sleep120-21swapper/1219:06:454
6556211192,15sleep70-21swapper/719:06:2313
6556211192,15sleep70-21swapper/719:06:2313
6750211092,10sleep10-21swapper/119:08:581
6750211092,10sleep10-21swapper/119:08:581
6508211092,14sleep130-21swapper/1319:05:415
6508211092,14sleep130-21swapper/1319:05:415
1816021060,6sleep2731999cyclictest20:00:188
2861321050,1sleep40-21swapper/420:15:0210
6501210088,8sleep60-21swapper/619:05:3412
6501210088,8sleep60-21swapper/619:05:3412
290492980,6sleep11733199cyclictest00:12:533
290492980,6sleep11733199cyclictest00:12:533
673429581,10sleep30-21swapper/319:08:449
673429581,10sleep30-21swapper/319:08:449
666329476,14sleep40-21swapper/419:07:5710
666329476,14sleep40-21swapper/419:07:5710
657929481,9sleep110-21swapper/1119:06:443
657929481,9sleep110-21swapper/1119:06:443
665929274,14sleep00-21swapper/019:07:530
665929274,14sleep00-21swapper/019:07:530
119702910,1sleep50-21swapper/522:46:2411
675428875,9sleep50-21swapper/519:09:0211
675428875,9sleep50-21swapper/519:09:0211
243432870,3sleep0731599cyclictest23:44:530
32132860,0sleep00-21swapper/021:40:160
32132860,0sleep00-21swapper/021:40:160
114662860,1sleep20-21swapper/222:33:478
666828472,8sleep90-21swapper/919:08:0215
666828472,8sleep90-21swapper/919:08:0215
558928374,4sleep80-21swapper/819:05:2014
558928374,4sleep80-21swapper/819:05:2014
670828272,6sleep140-21swapper/1419:08:236
670828272,6sleep140-21swapper/1419:08:236
292642810,1sleep2311rcuc/200:13:008
292642810,1sleep2311rcuc/200:13:008
23542800,2sleep10-21swapper/120:20:201
247372750,6sleep10733099cyclictest23:45:032
99122620,5sleep5732399cyclictest22:59:4611
109402350,1sleep110-21swapper/1122:06:393
36802320,1sleep130-21swapper/1322:04:335
321392310,7sleep8732799cyclictest23:20:4114
194042310,1sleep80-21swapper/800:09:2114
194042310,1sleep80-21swapper/800:09:2114
60752300,1sleep70-21swapper/722:30:4013
232942300,27sleep110-21swapper/1100:24:083
232942300,27sleep110-21swapper/1100:24:083
243822280,1sleep120-21swapper/1219:30:154
732599271,3cyclictest1041-21dbus-daemon00:15:1513
732599271,3cyclictest1041-21dbus-daemon00:15:1513
284722270,1sleep40-21swapper/423:06:1110
237722270,1sleep7731ktimersoftd/700:10:2413
237722270,1sleep7731ktimersoftd/700:10:2413
174902270,1sleep120-21swapper/1222:22:444
86042260,22sleep50-21swapper/523:11:1711
73792260,1sleep130-21swapper/1322:58:195
233252260,24sleep30-21swapper/319:29:359
198322260,1sleep50-21swapper/521:57:2811
79182250,4sleep14733599cyclictest00:04:226
54302250,1sleep100-21swapper/1022:57:112
242192250,0sleep120-21swapper/1223:44:494
237542250,1sleep70-21swapper/723:05:1013
219262250,22sleep150-21swapper/1523:04:307
208252250,1sleep70-21swapper/720:45:0313
207172250,22sleep60-21swapper/623:03:4912
732799248,10cyclictest82-21ksoftirqd/823:14:3714
732799246,11cyclictest82-21ksoftirqd/822:45:3114
732799246,11cyclictest0-21swapper/822:22:4614
732799246,11cyclictest0-21swapper/822:16:2014
732799240,18cyclictest0-21swapper/822:30:5814
58202240,1sleep150-21swapper/1522:18:137
274942240,1sleep10-21swapper/120:10:271
250112240,1sleep00-21swapper/023:05:190
169762240,0sleep30-21swapper/322:49:189
134362240,2sleep90-21swapper/923:26:2015
132572240,20sleep60-21swapper/623:40:1112
87782230,1sleep120-21swapper/1200:04:534
733399230,4cyclictest966-21ptp4l19:25:155
732799236,7cyclictest0-21swapper/823:02:0614
732799236,10cyclictest0-21swapper/823:39:0014
732799235,10cyclictest0-21swapper/823:30:2014
732799234,12cyclictest0-21swapper/822:02:2814
732399239,9cyclictest131rcu_preempt00:35:5211
7315992318,3cyclictest0-21swapper/022:21:100
226862230,1sleep100-21swapper/1020:45:222
206972230,1sleep140-21swapper/1423:30:096
200702230,20sleep00-21swapper/000:35:260
164752230,21sleep20-21swapper/220:37:298
733399220,20cyclictest0-21swapper/1323:20:145
732799227,9cyclictest0-21swapper/800:35:2914
732799227,9cyclictest0-21swapper/800:00:4614
732799226,14cyclictest24065-21sshd00:10:2514
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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