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2025-12-27 - 10:12
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Sat Dec 27, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491710,4ptp4l0-21swapper/121:07:251
134491700,3ptp4l21882-21users20:45:281
134491640,5ptp4l0-21swapper/119:45:171
134491630,2ptp4l17509-21mandb00:05:242
134491630,2ptp4l17509-21mandb00:05:232
850299607,7cyclictest0-21swapper/322:10:173
134491600,4ptp4l16470-21cut21:45:181
134491600,3ptp4l0-21swapper/322:25:173
850299596,7cyclictest0-21swapper/319:40:173
850299596,7cyclictest0-21swapper/319:40:173
8499995927,3cyclictest9-21ksoftirqd/021:34:590
134491590,3ptp4l0-21swapper/319:35:173
134491580,3ptp4l0-21swapper/323:02:013
134491580,15ptp4l0-21swapper/221:20:212
850299578,6cyclictest0-21swapper/300:20:273
134491570,4ptp4l0-21swapper/323:26:253
134491570,3ptp4l33-21ksoftirqd/222:30:232
134491570,16ptp4l6733-21iostat_ios19:05:172
850299568,12cyclictest0-21swapper/321:20:123
8499995626,4cyclictest9-21ksoftirqd/022:50:000
134491560,4ptp4l0-21swapper/221:52:552
134491560,4ptp4l0-21swapper/220:46:172
134491560,4ptp4l0-21swapper/220:29:102
134491560,3ptp4l0-21swapper/021:05:200
850299556,7cyclictest0-21swapper/320:55:273
850299556,6cyclictest0-21swapper/322:45:303
134491550,4ptp4l0-21swapper/020:56:540
850299547,6cyclictest0-21swapper/320:35:473
850299546,6cyclictest0-21swapper/320:25:173
8499995422,4cyclictest9-21ksoftirqd/019:40:130
8499995422,4cyclictest9-21ksoftirqd/019:40:130
8499995421,6cyclictest9-21ksoftirqd/022:52:240
134491540,4ptp4l0-21swapper/221:11:172
134491540,4ptp4l0-21swapper/120:20:291
134491540,4ptp4l0-21swapper/023:38:160
134491540,4ptp4l0-21swapper/000:37:280
850299535,12cyclictest0-21swapper/321:31:523
850299535,10cyclictest0-21swapper/320:10:223
850299535,10cyclictest0-21swapper/320:10:223
850299532,10cyclictest2318-21gnome-shell21:00:253
8499995322,3cyclictest9-21ksoftirqd/020:39:590
8499995313,7cyclictest9-21ksoftirqd/019:55:230
134491530,4ptp4l0-21swapper/219:56:042
134491530,4ptp4l0-21swapper/219:53:082
134491530,4ptp4l0-21swapper/121:38:491
134491530,4ptp4l0-21swapper/023:40:490
134491530,4ptp4l0-21swapper/020:07:560
134491530,3ptp4l0-21swapper/219:25:152
850299526,6cyclictest0-21swapper/323:55:123
850299526,6cyclictest0-21swapper/323:50:263
850299522,6cyclictest41-21ksoftirqd/300:15:243
134491520,5ptp4l0-21swapper/019:35:260
134491520,4ptp4l0-21swapper/220:15:502
134491520,3ptp4l0-21swapper/120:05:161
134491520,3ptp4l0-21swapper/120:00:261
850299518,6cyclictest0-21swapper/320:45:183
850299517,6cyclictest0-21swapper/323:05:593
850299515,6cyclictest0-21swapper/319:55:173
8499995124,3cyclictest9-21ksoftirqd/022:29:350
8499995123,3cyclictest9-21ksoftirqd/000:21:310
8499995121,3cyclictest9-21ksoftirqd/023:23:470
8499995120,3cyclictest9-21ksoftirqd/021:10:230
134491510,4ptp4l0-21swapper/200:32:062
134491510,12ptp4l0-21swapper/219:32:542
850299508,6cyclictest0-21swapper/319:15:213
850299506,6cyclictest0-21swapper/321:45:273
850299502,6cyclictest4843-21awk23:40:133
8499995019,7cyclictest9-21ksoftirqd/019:25:000
8499995019,4cyclictest9-21ksoftirqd/021:47:230
8499995019,4cyclictest9-21ksoftirqd/020:30:280
134491500,5ptp4l0-21swapper/022:05:390
134491500,4ptp4l0-21swapper/322:53:313
134491500,4ptp4l0-21swapper/220:00:322
134491500,4ptp4l0-21swapper/200:38:402
134491500,4ptp4l0-21swapper/200:21:592
134491500,4ptp4l0-21swapper/123:26:591
134491500,4ptp4l0-21swapper/122:52:011
134491500,4ptp4l0-21swapper/023:03:400
134491500,3ptp4l0-21swapper/122:21:201
134491500,3ptp4l0-21swapper/021:23:540
850299497,7cyclictest0-21swapper/319:30:213
850299497,6cyclictest0-21swapper/300:32:373
8499994922,4cyclictest9-21ksoftirqd/000:19:530
8499994922,3cyclictest9-21ksoftirqd/021:38:400
8499994922,3cyclictest9-21ksoftirqd/019:19:480
8499994921,3cyclictest9-21ksoftirqd/020:45:000
8499994917,4cyclictest9-21ksoftirqd/022:02:500
8499994917,3cyclictest9-21ksoftirqd/020:17:010
134491490,4ptp4l0-21swapper/222:48:222
134491490,4ptp4l0-21swapper/121:03:351
134491490,4ptp4l0-21swapper/023:47:580
134491490,4ptp4l0-21swapper/023:17:020
134491490,4ptp4l0-21swapper/022:12:220
134491490,4ptp4l0-21swapper/021:17:490
134491490,4ptp4l0-21swapper/021:03:200
134491490,10ptp4l0-21swapper/223:08:542
850299489,7cyclictest0-21swapper/319:45:183
850299482,12cyclictest0-21swapper/321:51:343
8499994819,3cyclictest9-21ksoftirqd/022:15:150
8499994818,3cyclictest9-21ksoftirqd/020:41:260
8499994817,6cyclictest9-21ksoftirqd/019:14:210
8499994817,4cyclictest9-21ksoftirqd/023:57:170
8499994817,3cyclictest9-21ksoftirqd/022:35:260
8499994815,5cyclictest9-21ksoftirqd/023:10:000
8499994810,6cyclictest9-21ksoftirqd/022:20:240
134491480,4ptp4l0-21swapper/319:05:213
134491480,4ptp4l0-21swapper/200:14:162
134491480,4ptp4l0-21swapper/200:14:162
134491480,4ptp4l0-21swapper/121:13:281
134491480,3ptp4l0-21swapper/121:41:541
850299477,6cyclictest0-21swapper/321:35:273
850299477,6cyclictest0-21swapper/300:00:223
850299476,6cyclictest0-21swapper/323:10:163
850299470,14cyclictest14589-21awk20:30:263
8499994716,3cyclictest9-21ksoftirqd/021:26:510
8499994715,3cyclictest9-21ksoftirqd/021:50:450
8499994714,3cyclictest9-21ksoftirqd/023:28:210
849999470,3cyclictest134491ptp4l23:10:280
134491470,4ptp4l0-21swapper/223:47:182
134491470,4ptp4l0-21swapper/223:25:452
134491470,4ptp4l0-21swapper/220:13:062
134491470,4ptp4l0-21swapper/220:13:062
134491470,4ptp4l0-21swapper/119:20:251
134491470,3ptp4l0-21swapper/123:45:271
134491470,10ptp4l0-21swapper/220:53:042
850299468,11cyclictest0-21swapper/322:15:183
850299462,5cyclictest0-21swapper/321:43:193
8499994619,3cyclictest9-21ksoftirqd/021:58:250
8499994619,3cyclictest9-21ksoftirqd/019:27:290
8499994617,3cyclictest9-21ksoftirqd/019:45:270
8499994617,3cyclictest9-21ksoftirqd/000:10:190
8499994617,3cyclictest9-21ksoftirqd/000:10:190
8499994614,6cyclictest9-21ksoftirqd/022:40:130
134491460,3ptp4l0-21swapper/119:15:391
134491460,12ptp4l0-21swapper/223:00:282
850299458,12cyclictest0-21swapper/323:15:233
850299456,7cyclictest0-21swapper/320:40:133
850299456,6cyclictest0-21swapper/321:05:193
850299451,4cyclictest0-21swapper/319:29:363
850299450,5cyclictest0-21swapper/321:11:343
8499994540,3cyclictest9-21ksoftirqd/000:31:210
8499994518,3cyclictest9-21ksoftirqd/023:52:280
8499994518,3cyclictest9-21ksoftirqd/000:00:470
8499994514,5cyclictest9-21ksoftirqd/000:25:190
849999451,3cyclictest121rcu_preempt19:30:140
134491450,4ptp4l0-21swapper/222:25:132
134491450,4ptp4l0-21swapper/221:57:122
134491450,3ptp4l0-21swapper/121:15:151
850299446,6cyclictest0-21swapper/322:05:143
850299446,11cyclictest0-21swapper/323:35:233
850299444,6cyclictest0-21swapper/322:00:143
849999444,6cyclictest9-21ksoftirqd/020:50:220
8499994411,6cyclictest9-21ksoftirqd/020:20:260
134491440,5ptp4l8531-21apt-get19:10:123
134491440,5ptp4l23515-21chrt19:40:202
134491440,5ptp4l23515-21chrt19:40:202
134491440,4ptp4l8851-21apt-get21:30:122
134491440,4ptp4l0-21swapper/319:20:163
134491440,4ptp4l0-21swapper/223:12:042
134491440,4ptp4l0-21swapper/119:05:351
134491440,10ptp4l0-21swapper/323:24:143
850299436,6cyclictest0-21swapper/322:30:163
850299435,6cyclictest0-21swapper/322:55:153
8499994318,7cyclictest9-21ksoftirqd/019:54:510
8499994311,3cyclictest9-21ksoftirqd/020:26:250
134491430,9ptp4l0-21swapper/222:37:092
134491430,9ptp4l0-21swapper/221:16:362
134491430,8ptp4l0-21swapper/323:30:213
134491430,8ptp4l0-21swapper/223:43:262
134491430,4ptp4l6357-21ls23:40:281
134491430,3ptp4l0-21swapper/122:40:511
134491430,10ptp4l0-21swapper/100:38:231
850299427,6cyclictest0-21swapper/322:20:173
850299420,9cyclictest0-21swapper/322:36:483
850299420,6cyclictest0-21swapper/321:15:133
8499994237,3cyclictest9-21ksoftirqd/023:35:000
8499994213,4cyclictest9-21ksoftirqd/022:32:390
849999420,3cyclictest121rcu_preempt21:45:000
134491420,6ptp4l649-21/usr/sbin/munin23:30:182
134491420,5ptp4l18799-21apt-get00:10:143
134491420,5ptp4l18799-21apt-get00:10:143
134491420,4ptp4l24720-21apt-get22:05:021
134491420,4ptp4l23413-21apt-get00:20:121
134491420,4ptp4l2318-21gnome-shell22:57:591
134491420,4ptp4l1722-21apt-get20:05:112
134491420,4ptp4l13192-21ls23:55:292
134491420,4ptp4l0-21swapper/200:28:252
134491420,4ptp4l0-21swapper/122:35:301
134491420,3ptp4l2465-21apt-get23:35:102
850299412,26cyclictest0-21swapper/323:46:593
134491410,9ptp4l0-21swapper/220:20:062
134491410,8ptp4l0-21swapper/222:16:442
134491410,5ptp4l26657-21meminfo00:25:213
134491410,5ptp4l21187-21/usr/sbin/munin00:15:142
134491410,4ptp4l6685-21diskstats20:15:151
134491410,4ptp4l3771-21apt-get21:20:011
134491410,4ptp4l32518-21apt-get23:30:131
134491410,4ptp4l27444-21apt-get23:20:012
134491410,4ptp4l25711-21apt-get00:25:141
134491410,4ptp4l18329-21sshd00:07:210
134491410,4ptp4l18329-21sshd00:07:210
134491410,4ptp4l0-21swapper/223:18:192
134491410,3ptp4l7484-21ls21:25:181
134491410,3ptp4l18445-21apt-get23:00:131
134491410,3ptp4l0-21swapper/119:33:141
134491410,10ptp4l0-21swapper/100:30:171
850299405,6cyclictest0-21swapper/321:55:153
849999406,6cyclictest9-21ksoftirqd/022:55:190
8499994035,3cyclictest9-21ksoftirqd/020:10:160
8499994035,3cyclictest9-21ksoftirqd/020:10:160
849999400,2cyclictest121rcu_preempt20:01:260
134491400,5ptp4l0-21swapper/320:05:093
134491400,5ptp4l0-21swapper/120:40:151
134491400,5ptp4l0-21swapper/019:05:570
134491400,4ptp4l9727-21/usr/sbin/munin19:10:231
134491400,4ptp4l31421-21ntp_states00:35:233
134491400,4ptp4l16715-21ntp_states20:35:221
134491400,4ptp4l11753-21hddtemp_smartct22:45:191
134491400,4ptp4l0-21swapper/320:15:293
134491400,4ptp4l0-21swapper/222:20:182
134491400,4ptp4l0-21swapper/222:10:352
134491400,4ptp4l0-21swapper/222:03:452
134491400,4ptp4l0-21swapper/221:40:242
134491400,4ptp4l0-21swapper/220:58:092
134491400,4ptp4l0-21swapper/120:25:191
134491400,3ptp4l4703-21df_inode22:30:161
134491400,3ptp4l22809-21df_inode20:50:151
134491400,3ptp4l15759-21apt-get21:45:132
850299392,5cyclictest41-21ksoftirqd/322:40:273
8501993934,3cyclictest33-21ksoftirqd/223:50:562
134491390,6ptp4l0-21swapper/123:35:191
134491390,5ptp4l0-21swapper/222:50:422
134491390,4ptp4l14144-21irqstats20:30:201
134491390,4ptp4l0-21swapper/321:28:323
134491390,4ptp4l0-21swapper/320:00:173
134491390,4ptp4l0-21swapper/319:50:233
134491390,4ptp4l0-21swapper/300:08:063
134491390,4ptp4l0-21swapper/300:08:063
134491390,4ptp4l0-21swapper/222:58:152
134491390,4ptp4l0-21swapper/221:35:002
134491390,4ptp4l0-21swapper/221:25:202
134491390,4ptp4l0-21swapper/221:09:262
134491390,4ptp4l0-21swapper/221:00:122
134491390,4ptp4l0-21swapper/220:42:162
134491390,4ptp4l0-21swapper/220:32:042
134491390,4ptp4l0-21swapper/219:21:582
134491390,4ptp4l0-21swapper/219:19:182
134491390,4ptp4l0-21swapper/219:13:102
134491390,4ptp4l0-21swapper/200:00:152
134491390,4ptp4l0-21swapper/123:20:401
134491390,4ptp4l0-21swapper/123:10:521
134491390,4ptp4l0-21swapper/123:05:271
134491390,4ptp4l0-21swapper/122:10:481
134491390,4ptp4l0-21swapper/122:00:141
134491390,4ptp4l0-21swapper/121:59:441
134491390,4ptp4l0-21swapper/120:11:501
134491390,4ptp4l0-21swapper/120:11:501
134491390,4ptp4l0-21swapper/100:13:011
134491390,4ptp4l0-21swapper/100:13:001
134491390,4ptp4l0-21swapper/100:00:241
134491390,3ptp4l30772-21meminfo22:15:201
134491390,3ptp4l28161-21memory19:50:191
134491390,3ptp4l25961-21iostat_ios23:15:191
134491390,3ptp4l0-21swapper/222:05:542
134491390,3ptp4l0-21swapper/119:25:271
850299381,5cyclictest0-21swapper/320:20:193
134491380,4ptp4l0-21swapper/320:50:223
134491380,4ptp4l0-21swapper/222:41:162
134491380,4ptp4l0-21swapper/220:35:002
134491380,4ptp4l0-21swapper/219:35:282
134491380,4ptp4l0-21swapper/123:55:471
134491380,4ptp4l0-21swapper/121:51:091
134491380,4ptp4l0-21swapper/121:30:281
134491380,4ptp4l0-21swapper/120:55:351
134491380,4ptp4l0-21swapper/119:40:351
134491380,4ptp4l0-21swapper/119:40:351
134491380,4ptp4l0-21swapper/119:36:011
134491380,4ptp4l0-21swapper/100:16:401
134491380,3ptp4l0-21swapper/219:45:262
134491380,3ptp4l0-21swapper/123:50:241
134491380,3ptp4l0-21swapper/122:25:241
134491380,3ptp4l0-21swapper/100:06:011
134491380,3ptp4l0-21swapper/100:06:011
134491370,4ptp4l0-21swapper/119:55:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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