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2026-08-08 - 04:31
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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 Sat Aug 08, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1358621570,3sleep2202799cyclictest23:00:182
2028996633,4cyclictest41-21ksoftirqd/323:25:223
151782660,6sleep2202799cyclictest19:35:282
134491660,3ptp4l6204-21irqstats21:35:201
81782610,3sleep341-21ksoftirqd/322:50:123
202599610,3cyclictest134491ptp4l22:45:010
54062600,5sleep20-21swapper/221:35:142
202899606,18cyclictest0-21swapper/323:15:233
2028995922,8cyclictest41-21ksoftirqd/320:55:233
134491590,4ptp4l0-21swapper/222:53:022
134491590,4ptp4l0-21swapper/121:05:261
134491580,4ptp4l0-21swapper/321:34:563
134491580,4ptp4l0-21swapper/219:06:492
134491580,4ptp4l0-21swapper/123:24:361
134491570,4ptp4l0-21swapper/121:22:361
134491570,4ptp4l0-21swapper/021:11:350
134491570,4ptp4l0-21swapper/000:16:280
134491570,3ptp4l0-21swapper/120:40:261
134491570,3ptp4l0-21swapper/119:16:301
134491560,4ptp4l0-21swapper/122:46:281
134491560,4ptp4l0-21swapper/100:05:121
134491560,4ptp4l0-21swapper/021:53:100
134491560,3ptp4l0-21swapper/020:16:260
202899555,11cyclictest0-21swapper/322:30:203
2025995531,21cyclictest9-21ksoftirqd/021:40:110
2025995531,21cyclictest9-21ksoftirqd/021:40:110
134491550,5ptp4l1498-21taskset19:07:073
134491550,4ptp4l0-21swapper/222:32:182
134491550,4ptp4l0-21swapper/221:42:372
134491550,4ptp4l0-21swapper/221:42:372
134491550,4ptp4l0-21swapper/123:36:001
134491550,27ptp4l23720-21/usr/sbin/munin19:55:191
202899543,11cyclictest0-21swapper/300:35:203
202899542,7cyclictest0-21swapper/320:45:173
202899542,6cyclictest0-21swapper/323:50:203
134491540,4ptp4l0-21swapper/123:49:241
134491540,4ptp4l0-21swapper/122:28:281
134491540,4ptp4l0-21swapper/121:50:361
134491540,4ptp4l0-21swapper/100:32:121
134491540,4ptp4l0-21swapper/022:56:280
134491540,3ptp4l0-21swapper/119:42:031
134491540,3ptp4l0-21swapper/021:18:480
134491540,10ptp4l0-21swapper/223:45:222
202899533,11cyclictest0-21swapper/320:40:193
2028995327,8cyclictest41-21ksoftirqd/322:40:263
134491530,4ptp4l0-21swapper/200:19:332
134491530,4ptp4l0-21swapper/119:54:151
134491530,4ptp4l0-21swapper/119:20:351
202899523,7cyclictest0-21swapper/321:59:163
202899523,12cyclictest0-21swapper/321:35:173
202899522,6cyclictest41-21ksoftirqd/323:30:253
202899522,12cyclictest0-21swapper/319:20:173
134491520,4ptp4l0-21swapper/120:30:471
134491520,4ptp4l0-21swapper/120:25:131
202899514,11cyclictest0-21swapper/321:05:223
202899513,10cyclictest0-21swapper/300:30:273
202899512,9cyclictest0-21swapper/320:27:583
202899512,7cyclictest0-21swapper/320:21:593
202899512,6cyclictest0-21swapper/320:30:233
202899512,5cyclictest3689-21latency_hist23:50:003
134491510,4ptp4l0-21swapper/123:53:111
134491510,4ptp4l0-21swapper/120:38:041
134491510,4ptp4l0-21swapper/120:15:151
134491510,2ptp4l0-21swapper/221:53:162
134491510,2ptp4l0-21swapper/120:47:331
202899503,6cyclictest0-21swapper/322:20:243
202899503,6cyclictest0-21swapper/322:20:243
202899503,11cyclictest0-21swapper/319:25:173
202899502,7cyclictest0-21swapper/300:03:523
202899502,6cyclictest0-21swapper/322:05:243
202899502,6cyclictest0-21swapper/319:50:083
202899502,10cyclictest0-21swapper/323:55:263
202899501,6cyclictest0-21swapper/321:20:173
202899500,7cyclictest137891phc2sys22:45:223
2027995037,11cyclictest33-21ksoftirqd/219:45:012
134491500,3ptp4l0-21swapper/100:15:261
2028994946,2cyclictest391rcuc/323:05:283
202899493,7cyclictest0-21swapper/300:10:203
202899492,6cyclictest0-21swapper/322:15:283
202899492,12cyclictest0-21swapper/319:55:173
202899492,10cyclictest0-21swapper/320:15:143
134491490,4ptp4l0-21swapper/200:29:532
134491490,4ptp4l0-21swapper/119:27:131
134491490,3ptp4l0-21swapper/222:04:372
202899488,11cyclictest0-21swapper/321:45:273
202899488,11cyclictest0-21swapper/321:45:273
202899485,6cyclictest0-21swapper/319:17:373
202899484,8cyclictest41-21ksoftirqd/300:18:253
202899484,11cyclictest0-21swapper/322:10:043
202899482,6cyclictest0-21swapper/319:13:223
202899481,5cyclictest41-21ksoftirqd/320:50:153
202899481,15cyclictest766-21gdbus22:00:253
134491480,4ptp4l0-21swapper/121:01:011
134491480,4ptp4l0-21swapper/100:27:161
134491480,10ptp4l0-21swapper/221:30:202
202899474,6cyclictest134691getstats00:20:273
202899472,5cyclictest41-21ksoftirqd/320:05:213
202899472,11cyclictest0-21swapper/300:05:183
202899470,6cyclictest29206-21/usr/sbin/munin23:35:173
134491470,5ptp4l27467-21ls21:10:262
134491470,4ptp4l0-21swapper/220:08:472
134491470,4ptp4l0-21swapper/122:58:481
134491470,4ptp4l0-21swapper/121:25:191
134491470,4ptp4l0-21swapper/120:12:351
134491470,4ptp4l0-21swapper/020:52:260
134491470,2ptp4l0-21swapper/222:55:372
202899467,6cyclictest41-21ksoftirqd/320:35:203
202899462,7cyclictest0-21swapper/323:40:233
202799461,43cyclictest0-21swapper/221:07:202
2025994640,4cyclictest24682-21cron00:35:000
134491460,4ptp4l0-21swapper/222:47:442
134491460,3ptp4l0-21swapper/220:28:472
134491460,10ptp4l0-21swapper/019:36:560
202899453,8cyclictest0-21swapper/323:20:173
202899453,6cyclictest41-21ksoftirqd/323:00:173
202899452,9cyclictest0-21swapper/321:50:163
202899452,7cyclictest0-21swapper/300:27:093
202899452,6cyclictest41-21ksoftirqd/319:30:233
202899452,12cyclictest0-21swapper/319:41:343
134491450,4ptp4l5028-21ls23:50:200
134491450,4ptp4l0-21swapper/123:08:581
134491450,4ptp4l0-21swapper/122:11:281
134491450,4ptp4l0-21swapper/120:54:381
134491450,4ptp4l0-21swapper/020:22:410
134491450,3ptp4l0-21swapper/123:13:021
134491450,3ptp4l0-21swapper/023:34:010
134491450,3ptp4l0-21swapper/000:14:300
202899442,11cyclictest0-21swapper/322:36:123
134491440,9ptp4l0-21swapper/319:46:493
134491440,9ptp4l0-21swapper/223:35:302
134491440,9ptp4l0-21swapper/221:20:522
134491440,4ptp4l0-21swapper/222:19:122
134491440,4ptp4l0-21swapper/222:09:592
134491440,4ptp4l0-21swapper/200:12:522
134491440,4ptp4l0-21swapper/121:48:221
134491440,4ptp4l0-21swapper/121:48:221
134491440,4ptp4l0-21swapper/121:12:561
134491440,3ptp4l28478-21apt-get21:15:122
134491440,3ptp4l0-21swapper/219:48:372
202899433,12cyclictest0-21swapper/323:10:243
202899433,11cyclictest0-21swapper/319:35:233
202899432,6cyclictest0-21swapper/322:25:243
134491430,9ptp4l0-21swapper/322:55:263
134491430,9ptp4l0-21swapper/223:07:492
134491430,5ptp4l4265-21ps21:30:231
134491430,4ptp4l9154-21ntp_states22:50:221
134491430,4ptp4l0-21swapper/119:39:211
134491430,3ptp4l9972-21meminfo19:25:190
134491430,3ptp4l6303-21apt-get23:55:110
134491430,3ptp4l0-21swapper/123:02:521
134491430,3ptp4l0-21swapper/023:39:010
202899422,6cyclictest0-21swapper/321:10:233
202699422,2cyclictest0-21swapper/122:00:391
202699422,2cyclictest0-21swapper/100:24:391
134691420,10getstats0-21swapper/019:46:570
134491420,5ptp4l0-21swapper/320:10:133
134491420,5ptp4l0-21swapper/200:20:122
134491420,5ptp4l0-21swapper/123:30:111
134491420,5ptp4l0-21swapper/122:40:141
134491420,5ptp4l0-21swapper/019:40:160
134491420,4ptp4l7648-21iostat20:30:180
134491420,4ptp4l31539-21apt-get23:40:120
134491420,4ptp4l3059-21apt-get21:30:120
134491420,4ptp4l29531-21apt-get20:10:020
134491420,4ptp4l28017-21apt-get21:15:023
134491420,4ptp4l27484-21apt-get20:05:130
134491420,4ptp4l25185-21apt-get20:00:100
134491420,4ptp4l25185-21apt-get20:00:100
134491420,4ptp4l23754-21ntp_states00:30:242
134491420,4ptp4l0-21swapper/221:57:082
134491420,4ptp4l0-21swapper/123:44:011
134491420,4ptp4l0-21swapper/123:29:261
134491420,4ptp4l0-21swapper/122:38:531
134491420,4ptp4l0-21swapper/122:33:291
134491420,3ptp4l654-21apt-get21:25:120
134491420,3ptp4l2799-21diskstats20:20:161
134491420,3ptp4l0-21swapper/020:44:220
134491420,3ptp4l0-21swapper/020:37:320
202899414,7cyclictest41-21ksoftirqd/321:00:123
202899412,6cyclictest0-21swapper/320:01:413
202899412,6cyclictest0-21swapper/320:01:403
134491410,8ptp4l0-21swapper/220:33:282
134491410,6ptp4l9-21ksoftirqd/019:15:130
134491410,5ptp4l212-21systemd-journal21:40:000
134491410,5ptp4l0-21swapper/321:25:223
134491410,5ptp4l0-21swapper/023:25:150
134491410,5ptp4l0-21swapper/020:45:180
134491410,5ptp4l0-21swapper/020:25:120
134491410,5ptp4l0-21swapper/019:55:150
134491410,4ptp4l31378-21hddtemp_smartct22:30:150
134491410,4ptp4l19361-21iostat20:55:181
134491410,4ptp4l0-21swapper/321:43:133
134491410,4ptp4l0-21swapper/321:43:123
134491410,4ptp4l0-21swapper/222:35:102
134491410,4ptp4l0-21swapper/119:49:051
134491410,4ptp4l0-21swapper/022:07:420
134491410,4ptp4l0-21swapper/020:55:130
134491410,4ptp4l0-21swapper/000:08:130
134491410,3ptp4l9645-21ls00:00:221
134491410,3ptp4l3059-21memory19:10:201
134491410,3ptp4l21525-21meminfo19:50:210
134491410,3ptp4l12159-21irqstats19:30:171
134491410,3ptp4l11318-21apt-get19:30:120
2026994033,4cyclictest25-21ksoftirqd/120:10:011
134491400,6ptp4l0-21swapper/200:06:422
134491400,5ptp4l21240-21latency00:25:180
134491400,5ptp4l0-21swapper/021:45:230
134491400,5ptp4l0-21swapper/021:45:230
134491400,5ptp4l0-21swapper/021:00:300
134491400,4ptp4l6950-21df_abs19:20:130
134491400,4ptp4l30147-21users21:15:281
134491400,4ptp4l24247-21ps21:05:190
134491400,4ptp4l1700-21df_abs23:45:170
134491400,4ptp4l0-21swapper/221:45:182
134491400,4ptp4l0-21swapper/221:45:182
134491400,4ptp4l0-21swapper/220:57:292
134491400,4ptp4l0-21swapper/219:15:232
134491400,4ptp4l0-21swapper/200:02:252
134491400,4ptp4l0-21swapper/120:00:131
134491400,4ptp4l0-21swapper/120:00:131
134491400,4ptp4l0-21swapper/100:10:301
134491400,4ptp4l0-21swapper/023:10:100
134491400,4ptp4l0-21swapper/023:05:260
134491400,4ptp4l0-21swapper/022:21:060
134491400,4ptp4l0-21swapper/022:21:060
134491400,4ptp4l0-21swapper/022:18:080
134491400,4ptp4l0-21swapper/022:10:340
134491400,4ptp4l0-21swapper/022:03:320
134491400,4ptp4l0-21swapper/021:55:210
134491400,3ptp4l8838-21memory21:40:211
134491400,3ptp4l8838-21memory21:40:201
134491400,3ptp4l3606-21ls19:10:250
134491400,3ptp4l32469-21users21:20:280
134491390,4ptp4l0-21swapper/223:57:072
134491390,4ptp4l0-21swapper/223:32:342
134491390,4ptp4l0-21swapper/223:24:212
134491390,4ptp4l0-21swapper/223:20:002
134491390,4ptp4l0-21swapper/222:20:202
134491390,4ptp4l0-21swapper/222:20:202
134491390,4ptp4l0-21swapper/221:02:132
134491390,4ptp4l0-21swapper/220:54:432
134491390,4ptp4l0-21swapper/220:10:092
134491390,4ptp4l0-21swapper/219:55:282
134491390,4ptp4l0-21swapper/219:32:092
134491390,4ptp4l0-21swapper/200:35:272
134491390,4ptp4l0-21swapper/123:55:121
134491390,4ptp4l0-21swapper/123:15:231
134491390,4ptp4l0-21swapper/122:21:381
134491390,4ptp4l0-21swapper/122:21:381
134491390,4ptp4l0-21swapper/122:17:171
134491390,4ptp4l0-21swapper/119:05:131
134491390,4ptp4l0-21swapper/100:36:121
134491390,4ptp4l0-21swapper/023:15:020
134491390,4ptp4l0-21swapper/022:52:020
134491390,4ptp4l0-21swapper/022:40:170
134491390,4ptp4l0-21swapper/022:27:440
134491390,4ptp4l0-21swapper/000:35:150
134491390,4ptp4l0-21swapper/000:21:440
134491390,3ptp4l9746-21ntp_states00:00:240
134491390,3ptp4l22694-21memory22:10:212
134491390,3ptp4l1819-21ntp_states21:25:232
134491390,3ptp4l0-21swapper/223:50:282
134491390,3ptp4l0-21swapper/223:14:192
134491390,3ptp4l0-21swapper/222:28:102
134491390,3ptp4l0-21swapper/219:20:002
134491390,3ptp4l0-21swapper/219:11:372
134491390,3ptp4l0-21swapper/023:20:590
134491390,3ptp4l0-21swapper/022:35:220
134491380,5ptp4l0-21swapper/019:05:070
134491380,4ptp4l9-21ksoftirqd/023:02:220
134491380,4ptp4l10617-21grep19:25:272
134491380,4ptp4l0-21swapper/223:26:422
134491380,4ptp4l0-21swapper/220:19:072
134491380,4ptp4l0-21swapper/219:50:342
134491380,4ptp4l0-21swapper/121:56:121
134491380,3ptp4l0-21swapper/222:40:102
134491370,4ptp4l0-21swapper/223:42:112
134491370,4ptp4l0-21swapper/220:01:482
134491370,4ptp4l0-21swapper/220:01:482
134491370,3ptp4l0-21swapper/220:48:072
134491370,3ptp4l0-21swapper/220:44:102
134491370,3ptp4l0-21swapper/220:38:472
134491360,4ptp4l0-21swapper/122:05:241
134491360,3ptp4l0-21swapper/220:23:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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