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2026-04-16 - 04:22
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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 Apr 16, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3047921640,7sleep1704999cyclictest21:10:121
134491670,4ptp4l7649-21iostat_ios19:10:180
134491640,2ptp4l121rcu_preempt23:05:253
134491640,2ptp4l121rcu_preempt23:05:253
134491630,3ptp4l17090-21/usr/sbin/munin00:10:261
134491630,3ptp4l0-21swapper/223:57:232
134491620,4ptp4l0-21swapper/021:25:220
134491620,3ptp4l0-21swapper/123:15:041
134491590,3ptp4l0-21swapper/323:57:143
134491590,3ptp4l0-21swapper/223:35:182
134491580,4ptp4l0-21swapper/322:19:573
134491580,4ptp4l0-21swapper/319:29:033
134491580,4ptp4l0-21swapper/219:39:282
134491580,3ptp4l0-21swapper/019:45:170
134491570,4ptp4l0-21swapper/223:14:572
134491570,3ptp4l0-21swapper/221:45:262
134491570,3ptp4l0-21swapper/200:14:282
134491570,3ptp4l0-21swapper/021:17:590
134491560,4ptp4l0-21swapper/300:31:583
134491560,4ptp4l0-21swapper/100:35:191
134491560,4ptp4l0-21swapper/023:02:450
134491560,3ptp4l0-21swapper/323:49:183
134491550,5ptp4l0-21swapper/020:25:260
134491550,4ptp4l705199cyclictest19:15:243
705199546,46cyclictest0-21swapper/322:58:483
134491540,3ptp4l0-21swapper/222:22:192
134491540,2ptp4l0-21swapper/020:15:270
134491530,4ptp4l0-21swapper/223:52:182
134491530,4ptp4l0-21swapper/222:39:512
134491530,4ptp4l0-21swapper/222:39:512
134491530,4ptp4l0-21swapper/220:14:212
134491530,4ptp4l0-21swapper/220:14:212
134491530,4ptp4l0-21swapper/021:48:380
134491530,4ptp4l0-21swapper/020:06:220
134491530,2ptp4l0-21swapper/219:51:142
134491530,19ptp4l25-21ksoftirqd/119:18:371
134491520,4ptp4l0-21swapper/319:07:533
134491520,4ptp4l0-21swapper/223:45:272
134491520,4ptp4l0-21swapper/221:58:242
134491520,4ptp4l0-21swapper/221:20:022
134491520,4ptp4l0-21swapper/023:34:490
134491520,3ptp4l0-21swapper/223:40:012
134491520,3ptp4l0-21swapper/220:32:412
134491510,4ptp4l705199cyclictest22:43:423
134491510,4ptp4l0-21swapper/220:51:502
134491510,4ptp4l0-21swapper/019:32:260
134491510,3ptp4l0-21swapper/222:40:452
134491510,11ptp4l5836-21ntp_states19:05:242
705199508,40cyclictest0-21swapper/320:37:083
705099501,46cyclictest27777-21wc21:05:002
134491500,4ptp4l0-21swapper/223:17:482
134491500,4ptp4l0-21swapper/220:07:372
134491500,4ptp4l0-21swapper/023:56:120
134491500,3ptp4l0-21swapper/222:26:192
134491500,3ptp4l0-21swapper/200:35:252
134491500,10ptp4l0-21swapper/219:32:062
134491490,4ptp4l0-21swapper/022:39:320
134491490,4ptp4l0-21swapper/022:39:320
134491490,4ptp4l0-21swapper/020:23:020
134491490,3ptp4l0-21swapper/122:51:131
134491490,3ptp4l0-21swapper/022:11:430
134491490,3ptp4l0-21swapper/021:06:550
134491490,3ptp4l0-21swapper/000:17:160
705099480,45cyclictest23261-21ls22:05:002
134491480,4ptp4l0-21swapper/321:25:253
134491480,4ptp4l0-21swapper/221:34:232
134491480,4ptp4l0-21swapper/020:55:530
134491480,3ptp4l0-21swapper/222:54:402
134491480,3ptp4l0-21swapper/021:22:480
134491480,3ptp4l0-21swapper/019:25:250
134491470,4ptp4l0-21swapper/120:39:041
134491470,4ptp4l0-21swapper/022:42:140
134491470,3ptp4l0-21swapper/222:19:582
134491470,3ptp4l0-21swapper/220:23:302
134491470,3ptp4l0-21swapper/000:10:350
134491460,8ptp4l0-21swapper/019:35:150
134491460,16ptp4l0-21swapper/120:50:141
134491460,11ptp4l0-21swapper/122:01:401
134491450,6ptp4l24293-21meminfo20:55:212
134491450,4ptp4l0-21swapper/321:45:153
134491450,4ptp4l0-21swapper/123:26:561
134491450,3ptp4l0-21swapper/300:08:483
134491450,3ptp4l0-21swapper/300:02:553
134491450,3ptp4l0-21swapper/222:32:152
134491450,3ptp4l0-21swapper/221:50:242
134491450,2ptp4l121rcu_preempt00:21:070
134491450,10ptp4l0-21swapper/121:32:041
134491440,5ptp4l0-21swapper/023:50:110
134491440,4ptp4l0-21swapper/119:12:541
134491440,4ptp4l0-21swapper/023:28:240
134491440,4ptp4l0-21swapper/022:50:330
134491440,3ptp4l0-21swapper/300:28:583
134491440,3ptp4l0-21swapper/220:41:432
134491430,4ptp4l30460-21apt-get22:20:110
134491430,4ptp4l25965-21apt-get23:20:132
134491430,4ptp4l0-21swapper/123:05:431
134491430,4ptp4l0-21swapper/123:05:431
134491430,4ptp4l0-21swapper/019:20:550
134491430,3ptp4l0-21swapper/321:30:303
134491430,3ptp4l0-21swapper/220:47:532
134491430,3ptp4l0-21swapper/220:00:552
134491430,3ptp4l0-21swapper/100:09:171
134491430,3ptp4l0-21swapper/021:59:430
134491420,9ptp4l0-21swapper/122:41:371
134491420,5ptp4l0-21swapper/322:00:113
134491420,4ptp4l458-21apt-get23:35:100
134491420,4ptp4l28855-21irqstats21:05:191
134491420,4ptp4l20270-21ls23:05:260
134491420,4ptp4l20270-21ls23:05:250
134491420,4ptp4l11695-21apt-get19:20:113
134491420,4ptp4l11356-21users21:35:261
134491420,4ptp4l11356-21users21:35:261
134491420,4ptp4l10802-21ntp_states21:35:222
134491420,4ptp4l10802-21ntp_states21:35:222
134491420,4ptp4l0-21swapper/321:20:123
134491420,4ptp4l0-21swapper/200:18:282
134491420,4ptp4l0-21swapper/122:20:541
134491420,4ptp4l0-21swapper/120:48:581
134491420,4ptp4l0-21swapper/021:02:500
134491420,4ptp4l0-21swapper/020:41:530
134491420,4ptp4l0-21swapper/000:02:460
134491420,3ptp4l14225-21apt-get22:55:122
134491420,3ptp4l0-21swapper/021:11:020
134491420,10ptp4l0-21swapper/122:11:091
7049994136,3cyclictest25-21ksoftirqd/119:45:011
134491410,5ptp4l10087-21df_inode23:55:141
134491410,5ptp4l0-21swapper/323:40:193
134491410,5ptp4l0-21swapper/320:55:123
134491410,5ptp4l0-21swapper/119:45:121
134491410,4ptp4l3091-21df23:40:120
134491410,4ptp4l29740-21ntp_states00:35:243
134491410,4ptp4l19870-21ntp_states20:45:213
134491410,4ptp4l18893-21diskstats19:35:151
134491410,4ptp4l1301-21snmpd19:13:523
134491410,4ptp4l0-21swapper/123:50:381
134491410,4ptp4l0-21swapper/123:47:191
134491410,4ptp4l0-21swapper/022:05:460
134491410,4ptp4l0-21swapper/022:05:460
134491410,4ptp4l0-21swapper/020:11:130
134491410,4ptp4l0-21swapper/020:11:130
134491410,3ptp4l22681-21meminfo00:20:201
134491410,3ptp4l18841-21apt-get23:05:122
134491410,3ptp4l18841-21apt-get23:05:122
134491410,3ptp4l14138-21apt-get20:35:122
134491410,3ptp4l12690-21irqstats20:30:193
134491410,3ptp4l12099-21apt-get00:00:112
134491410,3ptp4l10445-21ntp_states20:25:233
134491410,3ptp4l0-21swapper/322:10:173
134491400,5ptp4l26510-21cut21:00:183
134491400,5ptp4l25529-21ls00:25:261
134491400,5ptp4l1434-21ntpq22:25:201
134491400,5ptp4l0-21swapper/321:15:163
134491400,5ptp4l0-21swapper/319:40:183
134491400,5ptp4l0-21swapper/222:10:112
134491400,5ptp4l0-21swapper/219:20:112
134491400,5ptp4l0-21swapper/200:25:172
134491400,5ptp4l0-21swapper/122:15:161
134491400,5ptp4l0-21swapper/020:30:300
134491400,4ptp4l28461-21latency_hist00:35:000
134491400,4ptp4l0-21swapper/323:30:143
134491400,4ptp4l0-21swapper/323:00:123
134491400,4ptp4l0-21swapper/322:35:123
134491400,4ptp4l0-21swapper/322:35:113
134491400,4ptp4l0-21swapper/322:30:243
134491400,4ptp4l0-21swapper/322:25:183
134491400,4ptp4l0-21swapper/320:52:253
134491400,4ptp4l0-21swapper/320:40:253
134491400,4ptp4l0-21swapper/221:40:222
134491400,4ptp4l0-21swapper/221:25:152
134491400,4ptp4l0-21swapper/221:15:182
134491400,4ptp4l0-21swapper/200:34:232
134491400,4ptp4l0-21swapper/123:23:591
134491400,4ptp4l0-21swapper/123:10:271
134491400,4ptp4l0-21swapper/123:04:441
134491400,4ptp4l0-21swapper/122:05:501
134491400,4ptp4l0-21swapper/122:05:501
134491400,4ptp4l0-21swapper/121:55:101
134491400,4ptp4l0-21swapper/121:44:011
134491400,4ptp4l0-21swapper/121:26:461
134491400,4ptp4l0-21swapper/121:23:451
134491400,4ptp4l0-21swapper/121:17:061
134491400,4ptp4l0-21swapper/120:59:591
134491400,4ptp4l0-21swapper/120:25:121
134491400,4ptp4l0-21swapper/120:03:471
134491400,4ptp4l0-21swapper/119:55:191
134491400,4ptp4l0-21swapper/119:53:351
134491400,4ptp4l0-21swapper/100:04:331
134491400,4ptp4l0-21swapper/023:45:230
134491400,4ptp4l0-21swapper/023:15:320
134491400,4ptp4l0-21swapper/022:00:050
134491400,4ptp4l0-21swapper/021:39:360
134491400,4ptp4l0-21swapper/021:39:360
134491400,4ptp4l0-21swapper/021:34:520
134491400,4ptp4l0-21swapper/020:47:290
134491400,4ptp4l0-21swapper/020:39:020
134491400,4ptp4l0-21swapper/019:44:220
134491400,4ptp4l0-21swapper/019:18:490
134491400,3ptp4l8535-21ls20:20:273
134491400,3ptp4l29510-21users19:55:270
134491400,3ptp4l29093-21ls22:15:200
134491400,3ptp4l28620-21apt-get00:35:120
134491400,3ptp4l24981-21memory00:25:200
134491400,3ptp4l24076-21iostat_ios22:05:172
134491400,3ptp4l24076-21iostat_ios22:05:172
134491400,3ptp4l1481-21ntp_states22:25:210
134491400,3ptp4l14699-21df_inode00:05:140
134491400,3ptp4l13347-21ls22:50:233
134491400,3ptp4l13043-21strings21:40:200
134491400,3ptp4l0-21swapper/319:50:163
134491390,5ptp4l0-21swapper/320:10:173
134491390,5ptp4l0-21swapper/320:10:173
134491390,5ptp4l0-21swapper/221:14:162
134491390,5ptp4l0-21swapper/219:10:142
134491390,4ptp4l31561-21meminfo23:30:191
134491390,4ptp4l12942-21ls21:40:173
134491390,4ptp4l0-21swapper/323:50:183
134491390,4ptp4l0-21swapper/323:38:443
134491390,4ptp4l0-21swapper/323:20:113
134491390,4ptp4l0-21swapper/323:15:253
134491390,4ptp4l0-21swapper/323:10:223
134491390,4ptp4l0-21swapper/322:05:263
134491390,4ptp4l0-21swapper/322:05:263
134491390,4ptp4l0-21swapper/321:55:203
134491390,4ptp4l0-21swapper/319:55:563
134491390,4ptp4l0-21swapper/319:45:153
134491390,4ptp4l0-21swapper/319:34:453
134491390,4ptp4l0-21swapper/300:15:073
134491390,4ptp4l0-21swapper/300:10:133
134491390,4ptp4l0-21swapper/223:34:002
134491390,4ptp4l0-21swapper/223:28:502
134491390,4ptp4l0-21swapper/223:01:162
134491390,4ptp4l0-21swapper/222:45:272
134491390,4ptp4l0-21swapper/220:28:342
134491390,4ptp4l0-21swapper/219:40:222
134491390,4ptp4l0-21swapper/219:26:192
134491390,4ptp4l0-21swapper/200:20:452
134491390,4ptp4l0-21swapper/123:40:121
134491390,4ptp4l0-21swapper/123:35:101
134491390,4ptp4l0-21swapper/122:47:411
134491390,4ptp4l0-21swapper/122:32:261
134491390,4ptp4l0-21swapper/121:52:351
134491390,4ptp4l0-21swapper/121:45:571
134491390,4ptp4l0-21swapper/120:40:301
134491390,4ptp4l0-21swapper/120:31:511
134491390,4ptp4l0-21swapper/120:21:511
134491390,4ptp4l0-21swapper/120:12:211
134491390,4ptp4l0-21swapper/120:12:211
134491390,4ptp4l0-21swapper/120:05:141
134491390,4ptp4l0-21swapper/100:15:251
134491390,4ptp4l0-21swapper/023:20:060
134491390,4ptp4l0-21swapper/023:11:570
134491390,4ptp4l0-21swapper/022:59:290
134491390,4ptp4l0-21swapper/022:33:050
134491390,4ptp4l0-21swapper/021:54:030
134491390,4ptp4l0-21swapper/020:52:460
134491390,4ptp4l0-21swapper/020:00:570
134491390,4ptp4l0-21swapper/019:51:470
134491390,3ptp4l9629-21apt-get22:45:113
134491390,3ptp4l0-21swapper/321:50:143
134491390,3ptp4l0-21swapper/120:15:481
134491390,3ptp4l0-21swapper/022:47:360
134491380,5ptp4l41-21ksoftirqd/321:07:013
134491380,4ptp4l4903-21cat20:15:143
134491380,4ptp4l0-21swapper/323:25:403
134491380,4ptp4l0-21swapper/322:20:193
134491380,4ptp4l0-21swapper/321:37:393
134491380,4ptp4l0-21swapper/321:37:393
134491380,4ptp4l0-21swapper/320:05:113
134491380,4ptp4l0-21swapper/320:00:393
134491380,4ptp4l0-21swapper/319:35:243
134491380,4ptp4l0-21swapper/219:56:322
134491380,4ptp4l0-21swapper/219:45:422
134491380,4ptp4l0-21swapper/219:15:102
134491380,4ptp4l0-21swapper/200:05:162
134491380,4ptp4l0-21swapper/121:01:511
134491380,4ptp4l0-21swapper/119:31:571
134491380,4ptp4l0-21swapper/119:20:221
134491380,4ptp4l0-21swapper/100:30:441
134491380,3ptp4l15087-21ntpq19:25:231
134491380,3ptp4l0-21swapper/221:05:292
134491380,3ptp4l0-21swapper/220:15:292
7049993731,4cyclictest25-21ksoftirqd/122:35:231
7049993731,4cyclictest25-21ksoftirqd/122:35:221
134491370,4ptp4l0-21swapper/321:11:313
134491370,4ptp4l0-21swapper/122:56:341
134491370,3ptp4l0-21swapper/300:20:463
134491270,5ptp4l0-21swapper/119:08:561
134491240,5ptp4l0-21swapper/019:08:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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