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2025-07-16 - 13:41
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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 Wed Jul 16, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1712721540,6sleep62956599cyclictest23:50:0012
1339621380,5sleep02955699cyclictest23:23:570
2937321360,1sleep50-21swapper/521:24:1311
28991212592,28sleep20-21swapper/219:09:258
28905212292,25sleep90-21swapper/919:08:1215
289012118104,9sleep60-21swapper/619:08:0912
289982116102,9sleep80-21swapper/819:09:3114
29094211595,15sleep00-21swapper/019:10:110
29078211492,17sleep10-21swapper/119:09:561
1737221120,0sleep150-21swapper/1521:12:217
28923210989,16sleep70-21swapper/719:08:2613
149721090,5sleep14130-21ksoftirqd/1400:17:416
966621080,7sleep22955999cyclictest23:45:398
1667821080,1sleep30-21swapper/300:34:059
1642621070,1sleep110-21swapper/1120:11:033
514221060,0sleep70-21swapper/721:14:3713
1567021060,0sleep150-21swapper/1521:40:267
1764421050,1sleep90-21swapper/900:30:2615
2914321030,6sleep142957799cyclictest22:59:516
2914321030,6sleep142957799cyclictest22:59:516
2368021010,2sleep2525-21systemd-journal00:27:078
2886429970,24sleep40-21swapper/419:07:3510
119032990,1sleep40-21swapper/420:45:5810
119032990,1sleep40-21swapper/420:45:5810
136202980,1sleep111350-21nfsd23:31:063
275182970,1sleep120-21swapper/1222:29:524
2910729688,4sleep110-21swapper/1119:10:223
2908229678,13sleep50-21swapper/519:10:0011
2889129676,15sleep130-21swapper/1319:08:005
2876229673,18sleep120-21swapper/1219:06:224
2889229569,22sleep140-21swapper/1419:08:016
105092950,7sleep122957299cyclictest22:12:454
303552940,1sleep430357-21kworker/u34:223:07:1010
303552940,1sleep430357-21kworker/u34:223:07:1010
255522940,0sleep130-21swapper/1321:31:025
145812930,1sleep021537-21kworker/0:023:09:150
145812930,1sleep021537-21kworker/0:023:09:150
294062920,1sleep0121rcuc/022:04:150
2889329169,18sleep150-21swapper/1519:08:027
103362910,7sleep152957899cyclictest00:08:047
21902900,1sleep80-21swapper/822:52:3214
120302900,7sleep122957299cyclictest23:16:084
120302900,7sleep122957299cyclictest23:16:084
296172890,0sleep150-21swapper/1523:51:137
223492890,1sleep60-21swapper/622:40:2812
81152880,5sleep02955699cyclictest23:41:360
70042880,3sleep92956899cyclictest00:07:2615
56562880,6sleep122957299cyclictest20:36:124
56562880,6sleep122957299cyclictest20:36:124
51212880,2sleep85119-21sshd21:35:4614
283742870,1sleep120-21swapper/1222:18:384
157522870,1sleep50-21swapper/523:27:4711
318412840,1sleep341-21ksoftirqd/320:30:589
318412840,1sleep341-21ksoftirqd/320:30:589
232132840,1sleep20-21swapper/223:06:208
232132840,1sleep20-21swapper/223:06:208
2908028375,4sleep30-21swapper/319:09:589
2879828375,4sleep100-21swapper/1019:06:532
239222820,1sleep3401ktimersoftd/323:10:229
239222820,1sleep3401ktimersoftd/323:10:229
252172790,1sleep1025215-21sshd22:33:022
235742790,0sleep80-21swapper/821:13:0214
290002740,0sleep80-21swapper/821:41:3914
144652690,1sleep100-21swapper/1022:09:462
237762520,5sleep82956799cyclictest21:00:4414
2957199510,43cyclictest13481nfsd00:09:043
2957199500,43cyclictest1-21systemd22:28:353
1139099500,21rtkit-daemon0-21swapper/422:54:2210
2957199490,47cyclictest0-21swapper/1123:08:153
2957199490,47cyclictest0-21swapper/1123:08:153
2957199490,46cyclictest10365-21taskset21:32:483
2957199490,46cyclictest0-21swapper/1123:02:283
2957199490,46cyclictest0-21swapper/1123:02:283
2957199490,39cyclictest0-21swapper/1100:29:463
1139099490,30rtkit-daemon17457-21systemd23:02:0510
1139099490,30rtkit-daemon17457-21systemd23:02:0510
2957199470,44cyclictest27406-21cp22:33:183
2957199461,38cyclictest31885-21sshd23:51:283
2957199460,44cyclictest0-21swapper/1121:10:583
2957199460,43cyclictest9099-21sshd22:46:053
2957199460,43cyclictest0-21swapper/1122:36:463
2957199460,42cyclictest10783-21sshd23:27:113
2957199460,38cyclictest0-21swapper/1100:38:203
2957199460,37cyclictest0-21swapper/1121:46:033
2957199451,41cyclictest1-21systemd00:23:473
2957199451,41cyclictest1068-21dbus-daemon23:45:513
2957199451,37cyclictest1234-21polkitd00:20:053
2957199450,43cyclictest1351-21nfsd22:02:463
2957199450,43cyclictest1-21systemd22:53:333
2957199450,42cyclictest31526-21run-parts21:41:593
2957199450,42cyclictest27685-21sensors21:56:093
2957199450,42cyclictest19527-21sshd23:17:033
2957199450,42cyclictest19527-21sshd23:17:033
2957199450,42cyclictest1-21systemd23:38:033
2957199450,42cyclictest1-21systemd21:54:233
2957199450,42cyclictest0-21swapper/1123:55:543
2957199450,42cyclictest0-21swapper/1122:05:493
292682450,1sleep150-21swapper/1522:55:517
292682450,1sleep150-21swapper/1522:55:517
2957199441,40cyclictest525-21systemd-journal23:22:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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