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2026-03-26 - 07:00
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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 26, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2918721650,5sleep22142699cyclictest20:35:182
109321650,6sleep22142699cyclictest23:05:132
313921520,6sleep22142699cyclictest20:50:102
134491670,3ptp4l11015-21meminfo21:05:182
134491640,3ptp4l191472chrt22:34:103
134491630,3ptp4l0-21swapper/123:50:181
134491600,3ptp4l0-21swapper/222:40:212
134491590,5ptp4l0-21swapper/119:06:301
134491590,3ptp4l0-21swapper/320:34:213
134491570,4ptp4l0-21swapper/319:09:433
134491570,4ptp4l0-21swapper/221:24:592
134491570,3ptp4l0-21swapper/021:20:230
134491560,3ptp4l0-21swapper/319:50:403
134491560,3ptp4l0-21swapper/022:25:170
134491550,2ptp4l6142-21irqstats19:45:180
134491540,5ptp4l0-21swapper/219:17:182
134491540,3ptp4l0-21swapper/121:30:061
134491530,4ptp4l0-21swapper/120:00:261
134491530,3ptp4l0-21swapper/019:38:590
134491530,11ptp4l0-21swapper/000:16:170
6442520,1sleep1646-21latency_hist20:45:001
134491520,9ptp4l0-21swapper/023:35:230
134491520,4ptp4l0-21swapper/222:55:022
134491520,4ptp4l0-21swapper/220:33:092
134491520,4ptp4l0-21swapper/219:51:122
134491520,18ptp4l11166-21sendmail_mailqu19:55:250
134491510,4ptp4l0-21swapper/223:24:032
134491510,4ptp4l0-21swapper/220:21:162
134491510,4ptp4l0-21swapper/220:04:362
134491510,4ptp4l0-21swapper/122:39:271
134491510,4ptp4l0-21swapper/122:28:581
134491510,4ptp4l0-21swapper/120:39:241
134491510,4ptp4l0-21swapper/120:25:291
134491510,4ptp4l0-21swapper/119:40:231
134491510,4ptp4l0-21swapper/020:29:070
134491510,3ptp4l0-21swapper/019:10:480
134491500,4ptp4l0-21swapper/223:42:432
134491500,4ptp4l0-21swapper/221:40:282
134491500,4ptp4l0-21swapper/220:41:592
134491500,4ptp4l0-21swapper/219:42:502
134491500,4ptp4l0-21swapper/219:25:352
134491500,4ptp4l0-21swapper/200:14:162
134491500,4ptp4l0-21swapper/123:32:531
134491500,4ptp4l0-21swapper/122:11:481
134491500,3ptp4l0-21swapper/022:43:080
134491500,3ptp4l0-21swapper/020:17:380
134491490,4ptp4l0-21swapper/320:18:393
134491490,4ptp4l0-21swapper/223:26:412
134491490,4ptp4l0-21swapper/220:48:322
134491490,4ptp4l0-21swapper/219:48:342
134491490,4ptp4l0-21swapper/200:21:582
134491490,4ptp4l0-21swapper/123:15:101
134491490,4ptp4l0-21swapper/121:50:561
134491490,4ptp4l0-21swapper/022:57:280
134491490,4ptp4l0-21swapper/000:24:020
134491490,3ptp4l0-21swapper/019:50:260
134491480,4ptp4l0-21swapper/222:21:152
134491480,4ptp4l0-21swapper/222:21:152
134491480,4ptp4l0-21swapper/221:13:082
134491480,4ptp4l0-21swapper/123:24:151
134491480,4ptp4l0-21swapper/121:45:561
134491480,4ptp4l0-21swapper/100:03:251
134491480,4ptp4l0-21swapper/022:16:010
134491480,4ptp4l0-21swapper/021:36:360
134491480,3ptp4l0-21swapper/321:15:503
134491480,3ptp4l0-21swapper/021:55:150
2142799476,9cyclictest41-21ksoftirqd/323:49:073
134491470,9ptp4l20287-21sshd19:05:240
134491470,3ptp4l0-21swapper/119:30:021
134491460,4ptp4l0-21swapper/122:06:391
134491460,4ptp4l0-21swapper/121:35:191
134491460,4ptp4l0-21swapper/120:24:141
134491460,4ptp4l0-21swapper/119:47:461
134491460,4ptp4l0-21swapper/023:45:320
134491460,4ptp4l0-21swapper/022:23:460
134491460,4ptp4l0-21swapper/022:23:460
134491460,3ptp4l0-21swapper/222:49:532
134491460,3ptp4l0-21swapper/122:44:301
134491460,3ptp4l0-21swapper/020:52:230
134491460,12ptp4l22676-21/usr/sbin/munin20:20:240
21427994538,4cyclictest41-21ksoftirqd/322:40:013
2142799451,6cyclictest121rcu_preempt20:54:203
21427994512,4cyclictest41-21ksoftirqd/319:40:353
2142799450,2cyclictest121rcu_preempt19:35:133
134491450,4ptp4l0-21swapper/121:20:261
134491450,4ptp4l0-21swapper/023:29:230
134491450,4ptp4l0-21swapper/022:50:350
134491450,3ptp4l0-21swapper/223:53:072
134491450,3ptp4l0-21swapper/121:05:521
134491450,3ptp4l0-21swapper/100:30:281
134491450,3ptp4l0-21swapper/023:40:260
2142799443,6cyclictest121rcu_preempt23:04:093
2142799440,2cyclictest121rcu_preempt20:22:073
2142799440,2cyclictest121rcu_preempt00:27:093
134491440,9ptp4l0-21swapper/223:11:252
134491440,9ptp4l0-21swapper/222:16:312
134491440,9ptp4l0-21swapper/221:47:282
134491440,9ptp4l0-21swapper/221:26:552
134491440,9ptp4l0-21swapper/221:26:552
134491440,5ptp4l9895-21apt-get19:55:141
134491440,5ptp4l0-21swapper/021:45:110
134491440,4ptp4l19467-21apt-get22:35:122
134491440,4ptp4l0-21swapper/219:13:422
134491440,3ptp4l0-21swapper/120:59:101
134491440,3ptp4l0-21swapper/000:38:500
134491440,10ptp4l0-21swapper/223:49:292
21427994315,4cyclictest41-21ksoftirqd/300:23:083
2142799431,3cyclictest121rcu_preempt23:28:003
2142799430,3cyclictest121rcu_preempt21:55:253
2142799430,2cyclictest121rcu_preempt22:55:133
134491430,9ptp4l0-21swapper/219:38:002
134491430,7ptp4l0-21swapper/022:00:170
134491430,4ptp4l28858-21apt-get00:05:113
134491430,2ptp4l121rcu_preempt22:30:140
134491430,2ptp4l0-21swapper/219:55:152
134491430,2ptp4l0-21swapper/000:25:190
134491430,11ptp4l0-21swapper/221:16:082
134491430,10ptp4l0-21swapper/323:55:153
21427994237,3cyclictest41-21ksoftirqd/323:50:203
21427994236,3cyclictest41-21ksoftirqd/323:43:593
21427994236,3cyclictest41-21ksoftirqd/320:07:593
2142799422,2cyclictest121rcu_preempt20:00:533
2142799421,3cyclictest121rcu_preempt19:57:153
2142799420,3cyclictest121rcu_preempt23:33:553
2142799420,2cyclictest121rcu_preempt22:10:243
134491420,9ptp4l0-21swapper/222:25:012
134491420,8ptp4l0-21swapper/119:22:251
134491420,8ptp4l0-21swapper/020:05:500
134491420,5ptp4l0-21swapper/122:45:191
134491420,5ptp4l0-21swapper/122:30:261
134491420,5ptp4l0-21swapper/122:00:291
134491420,5ptp4l0-21swapper/000:30:180
134491420,4ptp4l31308-21df_inode23:00:141
134491420,4ptp4l0-21swapper/119:25:101
134491420,1ptp4l0-21swapper/200:05:542
21427994136,3cyclictest41-21ksoftirqd/319:35:013
21424994135,3cyclictest9-21ksoftirqd/022:35:250
134491410,9ptp4l0-21swapper/222:08:312
134491410,5ptp4l33-21ksoftirqd/200:17:282
134491410,5ptp4l21011-21latency_hist19:10:012
134491410,5ptp4l183-21jbd2/mmcblk1p1-21:19:370
134491410,5ptp4l0-21swapper/020:10:120
134491410,4ptp4l871-21apt-get23:05:121
134491410,4ptp4l12520-21df22:20:131
134491410,4ptp4l12520-21df22:20:131
134491410,4ptp4l0-21swapper/200:35:202
134491410,4ptp4l0-21swapper/023:00:200
134491410,4ptp4l0-21swapper/022:05:150
134491410,4ptp4l0-21swapper/019:15:230
134491410,3ptp4l6503-21memory23:15:190
134491410,3ptp4l19730-21iostat_ios20:15:191
134491410,3ptp4l19323-21apt-get21:25:141
134491410,3ptp4l19323-21apt-get21:25:141
134491410,3ptp4l0-21swapper/323:12:423
134491410,3ptp4l0-21swapper/123:11:211
2142799405,6cyclictest121rcu_preempt21:43:173
2142799405,3cyclictest121rcu_preempt21:34:283
21427994035,3cyclictest41-21ksoftirqd/322:10:013
21427994035,3cyclictest41-21ksoftirqd/321:35:203
21427994034,3cyclictest41-21ksoftirqd/321:53:593
21427994034,3cyclictest41-21ksoftirqd/320:27:593
21427994034,3cyclictest41-21ksoftirqd/320:13:583
2142799403,2cyclictest121rcu_preempt23:05:153
2142799400,3cyclictest121rcu_preempt21:25:133
2142799400,3cyclictest121rcu_preempt21:25:133
21426994034,3cyclictest33-21ksoftirqd/223:00:312
21426994033,4cyclictest33-21ksoftirqd/221:50:232
134491400,5ptp4l27752-21users20:30:291
134491400,5ptp4l24509-21sed19:15:181
134491400,5ptp4l2142499cyclictest21:30:150
134491400,5ptp4l0-21swapper/223:15:122
134491400,5ptp4l0-21swapper/219:20:192
134491400,5ptp4l0-21swapper/121:00:121
134491400,5ptp4l0-21swapper/100:25:181
134491400,5ptp4l0-21swapper/019:40:160
134491400,4ptp4l989-21df20:45:110
134491400,4ptp4l28439-21apt-get19:25:120
134491400,4ptp4l26653-21diskstats00:00:130
134491400,4ptp4l19638-21diskstats21:25:150
134491400,4ptp4l19638-21diskstats21:25:150
134491400,4ptp4l0-21swapper/320:45:163
134491400,4ptp4l0-21swapper/223:59:472
134491400,4ptp4l0-21swapper/222:04:072
134491400,4ptp4l0-21swapper/221:56:562
134491400,4ptp4l0-21swapper/221:04:012
134491400,4ptp4l0-21swapper/123:55:191
134491400,4ptp4l0-21swapper/122:52:201
134491400,4ptp4l0-21swapper/120:10:241
134491400,4ptp4l0-21swapper/119:10:151
134491400,4ptp4l0-21swapper/100:15:231
134491400,4ptp4l0-21swapper/023:52:370
134491400,4ptp4l0-21swapper/023:10:110
134491400,4ptp4l0-21swapper/023:05:110
134491400,4ptp4l0-21swapper/022:45:190
134491400,4ptp4l0-21swapper/021:40:130
134491400,4ptp4l0-21swapper/021:10:190
134491400,4ptp4l0-21swapper/020:55:160
134491400,3ptp4l9993-21apt-get22:15:131
134491400,3ptp4l31855-21memory20:40:190
134491400,3ptp4l31685-21memory19:30:210
134491400,3ptp4l25070-21strings23:55:200
134491400,3ptp4l16430-21users23:35:281
134491400,3ptp4l10065-21apt-get21:05:100
2142799398,3cyclictest41-21ksoftirqd/322:50:213
21427993935,2cyclictest41-21ksoftirqd/300:10:143
21427993934,3cyclictest41-21ksoftirqd/321:45:223
21427993934,3cyclictest41-21ksoftirqd/300:35:123
21427993934,3cyclictest41-21ksoftirqd/300:35:003
21427993933,3cyclictest41-21ksoftirqd/320:35:043
2142799390,2cyclictest121rcu_preempt23:36:073
134491390,5ptp4l12935-21ps21:10:181
134491390,5ptp4l0-21swapper/319:16:013
134491390,5ptp4l0-21swapper/300:00:013
134491390,5ptp4l0-21swapper/222:50:552
134491390,5ptp4l0-21swapper/019:20:130
134491390,4ptp4l9970-21sed23:24:590
134491390,4ptp4l28733-21sed19:25:133
134491390,4ptp4l18552-21ls23:40:261
134491390,4ptp4l18032-21kernelversion22:30:172
134491390,4ptp4l0-21swapper/322:01:013
134491390,4ptp4l0-21swapper/321:09:103
134491390,4ptp4l0-21swapper/320:55:263
134491390,4ptp4l0-21swapper/223:30:352
134491390,4ptp4l0-21swapper/222:13:532
134491390,4ptp4l0-21swapper/221:38:302
134491390,4ptp4l0-21swapper/220:15:582
134491390,4ptp4l0-21swapper/220:09:402
134491390,4ptp4l0-21swapper/200:34:562
134491390,4ptp4l0-21swapper/200:25:222
134491390,4ptp4l0-21swapper/200:00:382
134491390,4ptp4l0-21swapper/123:45:571
134491390,4ptp4l0-21swapper/123:28:001
134491390,4ptp4l0-21swapper/122:55:261
134491390,4ptp4l0-21swapper/121:57:501
134491390,4ptp4l0-21swapper/121:15:061
134491390,4ptp4l0-21swapper/119:50:241
134491390,4ptp4l0-21swapper/119:35:151
134491390,4ptp4l0-21swapper/100:12:061
134491390,4ptp4l0-21swapper/100:06:541
134491390,4ptp4l0-21swapper/023:30:220
134491390,4ptp4l0-21swapper/022:10:270
134491390,4ptp4l0-21swapper/021:50:130
134491390,4ptp4l0-21swapper/020:35:270
134491390,4ptp4l0-21swapper/020:30:260
134491390,4ptp4l0-21swapper/000:07:290
134491390,3ptp4l4103-21meminfo20:50:201
134491390,3ptp4l2324-21llvmpipe-100:13:580
134491390,3ptp4l0-21swapper/121:40:151
134491390,3ptp4l0-21swapper/020:00:110
21427993834,3cyclictest41-21ksoftirqd/319:10:253
2142799383,3cyclictest121rcu_preempt23:18:093
21427993833,3cyclictest41-21ksoftirqd/322:28:593
21427993833,3cyclictest41-21ksoftirqd/322:15:273
2142799380,3cyclictest121rcu_preempt22:40:473
134491380,4ptp4l0-21swapper/323:22:233
134491380,4ptp4l0-21swapper/322:21:113
134491380,4ptp4l0-21swapper/322:21:113
134491380,4ptp4l0-21swapper/321:20:143
134491380,4ptp4l0-21swapper/321:12:403
134491380,4ptp4l0-21swapper/321:02:403
134491380,4ptp4l0-21swapper/320:42:203
134491380,4ptp4l0-21swapper/319:20:173
134491380,4ptp4l0-21swapper/300:15:243
134491380,4ptp4l0-21swapper/223:35:432
134491380,4ptp4l0-21swapper/221:30:592
134491380,4ptp4l0-21swapper/220:25:592
134491380,4ptp4l0-21swapper/220:10:042
134491380,4ptp4l0-21swapper/219:30:542
134491380,4ptp4l0-21swapper/120:46:361
134491380,4ptp4l0-21swapper/120:05:131
134491380,4ptp4l0-21swapper/100:35:121
134491380,3ptp4l0-21swapper/220:55:142
134491380,3ptp4l0-21swapper/100:20:141
134491380,3ptp4l0-21swapper/021:00:190
134491370,4ptp4l0-21swapper/322:46:053
134491360,3ptp4l0-21swapper/319:45:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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