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2026-03-12 - 10:25
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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 highest latencies:
System rackdslot1.osadl.org (updated Thu Mar 12, 2026 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1048521730,6sleep11575499cyclictest23:35:191
3252021360,5sleep31575699cyclictest00:20:223
153242830,6sleep30-21swapper/320:15:303
15753996429,9cyclictest9-21ksoftirqd/020:25:190
134491630,9ptp4l0-21swapper/022:20:220
134491600,5ptp4l0-21swapper/300:10:163
134491600,4ptp4l0-21swapper/222:15:432
134491600,4ptp4l0-21swapper/100:01:581
15753995925,3cyclictest9-21ksoftirqd/023:57:300
1575399584,8cyclictest2663-21awk23:20:000
15753995827,3cyclictest9-21ksoftirqd/000:39:180
134491580,4ptp4l0-21swapper/321:49:103
134491580,3ptp4l0-21swapper/121:54:221
66052570,5sleep36610-21timerandwakeup23:25:263
1575399577,4cyclictest15736-21mailstats22:35:240
15753995724,5cyclictest9-21ksoftirqd/021:50:140
15753995721,4cyclictest9-21ksoftirqd/019:55:000
134491570,4ptp4l0-21swapper/121:47:171
134491570,3ptp4l0-21swapper/222:53:212
134491570,3ptp4l0-21swapper/121:17:321
15753995624,3cyclictest9-21ksoftirqd/022:53:350
15753995620,7cyclictest9-21ksoftirqd/019:25:140
134491560,3ptp4l0-21swapper/022:30:120
134491560,3ptp4l0-21swapper/019:50:170
1575399553,5cyclictest0-21swapper/019:25:000
15753995524,2cyclictest9-21ksoftirqd/000:06:210
15753995521,5cyclictest9-21ksoftirqd/021:36:030
134491550,4ptp4l32392-21fschecks_time19:45:171
134491550,4ptp4l32392-21fschecks_time19:45:171
15753995423,4cyclictest9-21ksoftirqd/000:25:230
15753995422,2cyclictest9-21ksoftirqd/020:50:500
1575399541,9cyclictest9-21ksoftirqd/020:55:230
134491540,4ptp4l0-21swapper/120:05:421
1575399535,8cyclictest4466-21sed23:20:260
1575399532,6cyclictest11842-21awk23:40:010
15753995326,3cyclictest9-21ksoftirqd/023:13:360
15753995325,6cyclictest9-21ksoftirqd/023:45:200
1575399530,13cyclictest9-21ksoftirqd/020:35:240
134491530,10ptp4l13428-21apt-get19:05:111
1575399525,5cyclictest9-21ksoftirqd/022:25:290
1575399524,7cyclictest9-21ksoftirqd/020:40:210
1575399523,8cyclictest9-21ksoftirqd/021:15:260
15753995224,5cyclictest9-21ksoftirqd/019:19:200
1575399522,3cyclictest0-21swapper/020:45:190
1575399522,10cyclictest9-21ksoftirqd/021:50:000
134491520,4ptp4l0-21swapper/321:41:033
134491520,4ptp4l0-21swapper/123:04:041
134491520,4ptp4l0-21swapper/121:38:251
134491520,3ptp4l0-21swapper/123:26:181
134491520,11ptp4l0-21swapper/100:21:241
1575399515,5cyclictest9-21ksoftirqd/021:45:000
1575399514,6cyclictest9-21ksoftirqd/023:30:000
1575399513,6cyclictest9-21ksoftirqd/021:00:240
1575399512,7cyclictest9-21ksoftirqd/019:30:120
1575399511,6cyclictest9-21ksoftirqd/022:45:220
134491510,4ptp4l0-21swapper/122:52:351
134491510,4ptp4l0-21swapper/122:42:191
134491510,4ptp4l0-21swapper/119:20:081
134491510,4ptp4l0-21swapper/022:15:000
1575399504,8cyclictest9-21ksoftirqd/021:25:010
1575399502,9cyclictest5257-21sed21:05:180
15753995016,6cyclictest9-21ksoftirqd/020:34:210
134491500,4ptp4l0-21swapper/320:22:183
134491500,4ptp4l0-21swapper/220:36:252
134491500,4ptp4l0-21swapper/122:19:011
134491500,4ptp4l0-21swapper/119:39:161
134491500,4ptp4l0-21swapper/119:26:511
134491500,11ptp4l0-21swapper/121:24:411
1575399493,6cyclictest9-21ksoftirqd/023:50:240
1575399492,5cyclictest18242-21turbostat20:24:590
1575399492,3cyclictest9-21ksoftirqd/022:55:120
15753994922,3cyclictest9-21ksoftirqd/019:11:270
1575399491,6cyclictest9-21ksoftirqd/020:15:230
1575399490,9cyclictest9-21ksoftirqd/000:05:000
134491490,4ptp4l0-21swapper/123:42:151
134491490,4ptp4l0-21swapper/123:31:341
134491490,4ptp4l0-21swapper/123:10:401
134491490,4ptp4l0-21swapper/122:36:031
134491490,4ptp4l0-21swapper/121:11:051
134491490,4ptp4l0-21swapper/120:10:531
134491490,4ptp4l0-21swapper/019:05:540
134491490,3ptp4l0-21swapper/300:27:593
1575699484,3cyclictest41-21ksoftirqd/300:05:173
1575399485,5cyclictest9-21ksoftirqd/021:30:000
1575399484,9cyclictest9-21ksoftirqd/000:20:170
1575399484,4cyclictest9-21ksoftirqd/020:00:280
1575399483,9cyclictest9-21ksoftirqd/019:35:100
15753994830,3cyclictest9-21ksoftirqd/023:03:360
1575399482,5cyclictest32332-21fschecks_count19:45:160
1575399482,5cyclictest32332-21fschecks_count19:45:160
1575399480,6cyclictest101ktimersoftd/000:10:150
1575399480,5cyclictest9-21ksoftirqd/000:16:590
134491480,4ptp4l0-21swapper/123:56:521
134491480,4ptp4l0-21swapper/122:49:571
134491480,4ptp4l0-21swapper/100:05:521
134491480,4ptp4l0-21swapper/023:34:140
134491480,4ptp4l0-21swapper/022:08:520
134491480,3ptp4l0-21swapper/122:31:501
134491480,3ptp4l0-21swapper/120:38:591
1575399474,2cyclictest0-21swapper/021:55:300
1575399473,8cyclictest9-21ksoftirqd/019:40:250
1575399472,3cyclictest0-21swapper/020:05:230
1575399465,2cyclictest9-21ksoftirqd/022:40:190
1575399462,6cyclictest0-21swapper/021:10:150
1575399461,8cyclictest9-21ksoftirqd/022:15:150
1575399460,6cyclictest9-21ksoftirqd/021:30:260
134491460,4ptp4l0-21swapper/122:26:361
1575399455,8cyclictest9-21ksoftirqd/020:10:210
1575399450,10cyclictest9-21ksoftirqd/023:40:140
134491450,9ptp4l0-21swapper/219:56:242
134491450,4ptp4l0-21swapper/120:49:401
134491450,10ptp4l0-21swapper/222:43:512
134491450,10ptp4l0-21swapper/200:27:322
1575399442,5cyclictest9-21ksoftirqd/023:05:160
1575399442,5cyclictest9-21ksoftirqd/022:00:210
134491440,9ptp4l0-21swapper/222:47:462
134491440,9ptp4l0-21swapper/222:25:372
134491440,9ptp4l0-21swapper/220:47:022
134491440,9ptp4l0-21swapper/220:00:492
134491440,5ptp4l0-21swapper/220:05:182
134491440,5ptp4l0-21swapper/119:52:001
134491440,4ptp4l0-21swapper/122:06:341
15754994338,3cyclictest25-21ksoftirqd/120:05:011
134491430,9ptp4l0-21swapper/223:38:112
134491430,9ptp4l0-21swapper/223:17:122
134491430,9ptp4l0-21swapper/223:03:042
134491430,9ptp4l0-21swapper/221:56:562
134491430,9ptp4l0-21swapper/219:44:372
134491430,9ptp4l0-21swapper/219:31:362
134491430,8ptp4l0-21swapper/221:43:382
134491430,4ptp4l0-21swapper/120:15:371
134491430,4ptp4l0-21swapper/119:56:541
134491430,4ptp4l0-21swapper/119:18:331
134491430,3ptp4l0-21swapper/122:00:211
134491430,11ptp4l1317-21runrttasks20:33:361
134491430,11ptp4l0-21swapper/200:09:432
134491430,10ptp4l0-21swapper/223:59:342
134491430,10ptp4l0-21swapper/222:03:102
15754994237,3cyclictest25-21ksoftirqd/122:10:201
15753994230,3cyclictest9-21ksoftirqd/000:33:150
134491420,9ptp4l0-21swapper/223:06:032
134491420,9ptp4l0-21swapper/221:02:442
134491420,9ptp4l0-21swapper/220:50:322
134491420,8ptp4l0-21swapper/220:32:112
134491420,6ptp4l5640-21cron00:35:001
134491420,5ptp4l0-21swapper/221:20:032
134491420,4ptp4l26257-21apt-get00:10:022
134491420,4ptp4l2318-21gnome-shell20:53:581
134491420,4ptp4l0-21swapper/120:55:581
134491420,4ptp4l0-21swapper/100:35:391
134491420,10ptp4l0-21swapper/219:17:182
15756994136,3cyclictest41-21ksoftirqd/322:20:003
15754994136,3cyclictest25-21ksoftirqd/100:10:181
134491410,8ptp4l0-21swapper/223:12:462
134491410,5ptp4l4799-21ps00:30:232
134491410,5ptp4l0-21swapper/322:00:143
134491410,5ptp4l0-21swapper/119:10:111
134491410,4ptp4l0-21swapper/319:55:203
134491410,4ptp4l0-21swapper/319:40:133
134491410,4ptp4l0-21swapper/219:35:172
134491410,4ptp4l0-21swapper/121:26:311
134491410,4ptp4l0-21swapper/121:00:101
15755994035,3cyclictest33-21ksoftirqd/223:20:032
15754994035,3cyclictest25-21ksoftirqd/120:25:131
15754994034,3cyclictest25-21ksoftirqd/123:50:181
15754994028,3cyclictest25-21ksoftirqd/122:20:161
134491400,5ptp4l26214-21ps19:30:241
134491400,5ptp4l0-21swapper/300:35:063
134491400,5ptp4l0-21swapper/222:20:222
134491400,5ptp4l0-21swapper/100:15:231
134491400,4ptp4l11327-21/usr/sbin/munin20:10:223
134491400,4ptp4l0-21swapper/322:06:593
134491400,4ptp4l0-21swapper/223:52:302
134491400,4ptp4l0-21swapper/222:05:352
134491400,4ptp4l0-21swapper/219:46:152
134491400,4ptp4l0-21swapper/219:46:152
134491400,4ptp4l0-21swapper/219:21:412
134491400,4ptp4l0-21swapper/219:10:222
134491400,4ptp4l0-21swapper/200:35:062
134491400,4ptp4l0-21swapper/123:45:241
134491400,4ptp4l0-21swapper/121:40:161
134491400,4ptp4l0-21swapper/100:29:301
134491400,3ptp4l33-21ksoftirqd/220:40:222
15756993935,3cyclictest41-21ksoftirqd/323:55:003
15756993926,4cyclictest41-21ksoftirqd/319:16:253
134491390,5ptp4l0-21swapper/322:45:153
134491390,4ptp4l0-21swapper/321:58:323
134491390,4ptp4l0-21swapper/321:50:213
134491390,4ptp4l0-21swapper/321:30:283
134491390,4ptp4l0-21swapper/321:20:583
134491390,4ptp4l0-21swapper/300:31:073
134491390,4ptp4l0-21swapper/223:47:222
134491390,4ptp4l0-21swapper/223:40:142
134491390,4ptp4l0-21swapper/223:26:122
134491390,4ptp4l0-21swapper/222:59:322
134491390,4ptp4l0-21swapper/222:30:142
134491390,4ptp4l0-21swapper/221:46:422
134491390,4ptp4l0-21swapper/221:35:082
134491390,4ptp4l0-21swapper/221:33:592
134491390,4ptp4l0-21swapper/221:25:372
134491390,4ptp4l0-21swapper/221:17:172
134491390,4ptp4l0-21swapper/221:08:072
134491390,4ptp4l0-21swapper/220:20:572
134491390,4ptp4l0-21swapper/220:19:112
134491390,4ptp4l0-21swapper/220:10:342
134491390,4ptp4l0-21swapper/219:52:312
134491390,4ptp4l0-21swapper/200:15:112
134491390,4ptp4l0-21swapper/200:03:302
134491390,4ptp4l0-21swapper/123:21:511
134491390,4ptp4l0-21swapper/121:55:221
134491390,4ptp4l0-21swapper/120:40:211
134491390,4ptp4l0-21swapper/120:20:271
134491390,3ptp4l29611-21apt-get19:40:101
134491390,3ptp4l17305-21ls21:30:201
134491390,3ptp4l0-21swapper/319:20:263
134491390,3ptp4l0-21swapper/221:50:282
134491390,3ptp4l0-21swapper/122:55:191
134491390,3ptp4l0-21swapper/121:05:211
15754993833,3cyclictest25-21ksoftirqd/123:05:141
134491380,4ptp4l0-21swapper/323:55:323
134491380,4ptp4l0-21swapper/323:22:323
134491380,4ptp4l0-21swapper/322:25:003
134491380,4ptp4l0-21swapper/320:45:173
134491380,4ptp4l0-21swapper/320:36:493
134491380,4ptp4l0-21swapper/320:01:553
134491380,4ptp4l0-21swapper/319:51:363
134491380,4ptp4l0-21swapper/319:12:293
134491380,4ptp4l0-21swapper/300:17:543
134491380,4ptp4l0-21swapper/300:00:203
134491380,4ptp4l0-21swapper/222:36:302
134491380,4ptp4l0-21swapper/222:10:572
134491380,4ptp4l0-21swapper/221:12:342
134491380,4ptp4l0-21swapper/219:27:512
134491380,4ptp4l0-21swapper/200:20:432
134491380,4ptp4l0-21swapper/123:15:091
134491380,3ptp4l0-21swapper/320:32:113
134491380,3ptp4l0-21swapper/320:05:223
134491380,3ptp4l0-21swapper/220:55:392
134491380,3ptp4l0-21swapper/220:27:322
15756993732,3cyclictest41-21ksoftirqd/321:10:173
134491370,4ptp4l0-21swapper/322:33:143
134491370,4ptp4l0-21swapper/322:29:143
134491370,4ptp4l0-21swapper/322:11:453
134491370,4ptp4l0-21swapper/319:35:303
134491370,4ptp4l0-21swapper/319:31:193
134491370,4ptp4l0-21swapper/223:31:492
134491370,3ptp4l0-21swapper/323:45:043
134491370,3ptp4l0-21swapper/321:28:183
134491360,4ptp4l0-21swapper/322:57:133
134491360,3ptp4l0-21swapper/321:05:383
15756993530,3cyclictest41-21ksoftirqd/322:40:183
134491350,4ptp4l0-21swapper/320:41:493
15756993430,3cyclictest41-21ksoftirqd/323:00:193
15756993429,3cyclictest41-21ksoftirqd/320:59:173
15756993328,4cyclictest41-21ksoftirqd/322:50:143
15756993328,3cyclictest41-21ksoftirqd/323:40:183
15756993227,3cyclictest41-21ksoftirqd/323:30:233
15756993227,3cyclictest41-21ksoftirqd/319:45:203
15756993227,3cyclictest41-21ksoftirqd/319:45:203
15756993227,3cyclictest41-21ksoftirqd/319:30:003
134491320,4ptp4l0-21swapper/323:11:443
134491320,4ptp4l0-21swapper/323:05:223
15756993125,4cyclictest41-21ksoftirqd/323:39:143
1575699300,3cyclictest134491ptp4l22:35:123
134491300,4ptp4l0-21swapper/323:16:103
15756992824,3cyclictest41-21ksoftirqd/320:50:173
15756992823,3cyclictest41-21ksoftirqd/321:15:193
15756992823,3cyclictest41-21ksoftirqd/321:00:243
15756992521,2cyclictest41-21ksoftirqd/321:39:593
134491250,3ptp4l0-21swapper/320:29:513
145372195,8sleep20-21swapper/219:05:232
142762144,5sleep30-21swapper/319:05:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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