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2025-07-07 - 05:16
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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 Mon Jul 07, 2025 00:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1486821780,7sleep02340199cyclictest21:10:190
2847191630,5ptp4l17085-21df21:15:181
2847191620,4ptp4l0-21swapper/223:01:572
2847191610,4ptp4l32688-21apt-get19:30:152
2847191610,4ptp4l0-21swapper/219:25:112
2847191600,4ptp4l20236-21ls21:20:282
2847191600,4ptp4l0-21swapper/320:15:553
2847191600,4ptp4l0-21swapper/220:55:012
2847191590,4ptp4l0-21swapper/200:04:462
2847191590,3ptp4l0-21swapper/223:25:292
2847191580,3ptp4l9797-21apt-get19:50:132
2847191580,3ptp4l0-21swapper/222:55:242
2847191580,3ptp4l0-21swapper/221:38:322
2847191580,3ptp4l0-21swapper/219:41:282
2847191580,26ptp4l0-21swapper/320:00:593
2847191570,5ptp4l0-21swapper/320:36:343
2847191570,4ptp4l0-21swapper/321:35:093
2847191570,4ptp4l0-21swapper/320:53:473
2847191570,4ptp4l0-21swapper/320:20:263
2847191570,4ptp4l0-21swapper/023:12:040
2847191560,4ptp4l0-21swapper/123:45:411
2847191560,3ptp4l0-21swapper/323:42:233
2847191560,3ptp4l0-21swapper/222:20:242
2847191550,4ptp4l0-21swapper/021:07:420
2847191540,4ptp4l0-21swapper/019:19:400
2847191540,3ptp4l0-21swapper/223:18:102
2847191530,5ptp4l0-21swapper/219:05:042
2847191530,4ptp4l0-21swapper/323:05:383
2847191530,4ptp4l0-21swapper/223:08:162
2847191530,4ptp4l0-21swapper/221:41:572
2847191530,4ptp4l0-21swapper/021:28:130
2847191530,3ptp4l0-21swapper/219:46:092
2847191530,3ptp4l0-21swapper/119:52:561
2847191520,4ptp4l0-21swapper/321:55:393
2847191520,4ptp4l0-21swapper/321:54:283
2847191520,4ptp4l0-21swapper/222:43:562
2847191520,4ptp4l0-21swapper/222:09:512
2847191520,4ptp4l0-21swapper/221:58:062
2847191520,4ptp4l0-21swapper/219:12:482
2847191520,3ptp4l0-21swapper/222:00:362
2847191520,3ptp4l0-21swapper/221:17:452
265882520,2sleep02340199cyclictest20:25:180
2847191510,4ptp4l0-21swapper/223:38:412
2847191510,4ptp4l0-21swapper/221:49:152
2847191510,4ptp4l0-21swapper/221:49:152
2847191510,4ptp4l0-21swapper/022:26:460
2847191510,4ptp4l0-21swapper/020:32:480
2847191510,3ptp4l0-21swapper/322:41:123
2847191510,3ptp4l0-21swapper/322:03:293
2847191500,4ptp4l0-21swapper/222:36:412
2847191500,4ptp4l0-21swapper/222:27:592
2847191500,4ptp4l0-21swapper/221:51:492
2847191500,4ptp4l0-21swapper/221:07:212
2847191500,4ptp4l0-21swapper/220:51:292
2847191500,3ptp4l0-21swapper/220:26:312
2847191500,3ptp4l0-21swapper/220:15:442
2340199509,3cyclictest9-21ksoftirqd/021:34:210
23401995021,4cyclictest9-21ksoftirqd/019:13:490
2847191490,4ptp4l0-21swapper/320:29:283
2847191490,4ptp4l0-21swapper/200:17:082
2847191490,3ptp4l0-21swapper/220:43:282
2847191490,3ptp4l0-21swapper/220:13:152
2340299494,4cyclictest25-21ksoftirqd/100:02:511
23401994917,4cyclictest9-21ksoftirqd/021:56:030
2847191480,4ptp4l0-21swapper/321:23:063
2847191480,4ptp4l0-21swapper/300:03:303
2847191480,3ptp4l0-21swapper/220:45:192
2847191480,14ptp4l0-21swapper/300:28:223
2847191480,11ptp4l0-21swapper/222:50:232
2847191480,10ptp4l0-21swapper/219:15:292
23402994824,4cyclictest25-21ksoftirqd/120:05:311
2847191470,4ptp4l0-21swapper/223:58:382
2847191470,13ptp4l0-21swapper/022:25:000
2847191470,12ptp4l0-21swapper/000:06:310
2847191470,11ptp4l0-21swapper/219:35:142
2847191470,11ptp4l0-21swapper/122:20:171
2847191470,10ptp4l0-21swapper/200:34:462
2340299473,4cyclictest25-21ksoftirqd/119:27:541
2847191460,5ptp4l23823-21apt-get21:30:143
2847191460,5ptp4l0-21swapper/300:35:143
2847191460,4ptp4l0-21swapper/000:37:450
2340299463,5cyclictest25-21ksoftirqd/123:34:151
23402994622,4cyclictest25-21ksoftirqd/100:25:341
23402994619,4cyclictest25-21ksoftirqd/119:16:151
23402994618,4cyclictest25-21ksoftirqd/100:10:461
23402994611,9cyclictest25-21ksoftirqd/121:15:001
2847191450,4ptp4l0-21swapper/200:09:532
2340199454,3cyclictest121rcu_preempt00:15:030
23401994514,2cyclictest121rcu_preempt22:10:000
2847191440,5ptp4l32447-21users21:45:290
2847191440,5ptp4l32447-21users21:45:280
2847191440,5ptp4l1778-21gnome-shell19:58:593
2847191440,4ptp4l16873-21apt-get21:15:150
2847191440,4ptp4l0-21swapper/223:54:502
2847191440,4ptp4l0-21swapper/200:27:122
2847191440,4ptp4l0-21swapper/200:22:052
23402994430,4cyclictest25-21ksoftirqd/122:35:261
23401994430,4cyclictest9-21ksoftirqd/021:20:310
2847191430,8ptp4l15015-21basename22:19:593
2847191430,6ptp4l21043-21/usr/sbin/munin19:05:183
2847191430,6ptp4l0-21swapper/122:13:101
2847191430,5ptp4l29199-21ntp_states19:20:240
2847191430,5ptp4l28275-21ntp_states23:55:250
2847191430,5ptp4l26478-21sshd22:43:211
2847191430,4ptp4l12106-21apt-get19:55:142
2847191430,11ptp4l0-21swapper/021:42:300
2340299432,4cyclictest25-21ksoftirqd/121:21:121
23401994329,4cyclictest9-21ksoftirqd/000:10:240
2847191420,9ptp4l0-21swapper/022:12:450
2847191420,9ptp4l0-21swapper/000:22:190
2847191420,6ptp4l0-21swapper/020:35:210
2847191420,5ptp4l15823-21iostat22:20:193
2847191420,4ptp4l30020-21irqstats22:50:180
2847191420,4ptp4l1778-21gnome-shell23:16:583
2847191420,4ptp4l1223-21iostat21:50:190
2847191420,4ptp4l10607-21apt-get22:10:122
2847191420,4ptp4l0-21swapper/221:12:452
2847191420,3ptp4l22489-21appstreamcli23:45:013
2847191420,3ptp4l19911-21apt-get22:30:133
2847191420,3ptp4l0-21swapper/322:54:023
23402994238,2cyclictest25-21ksoftirqd/120:50:001
23402994216,3cyclictest25-21ksoftirqd/123:29:251
23402994212,4cyclictest25-21ksoftirqd/121:34:041
2340299420,3cyclictest121rcu_preempt20:56:221
2340199428,4cyclictest9-21ksoftirqd/000:00:070
2340199423,9cyclictest9-21ksoftirqd/019:35:010
23401994229,3cyclictest9-21ksoftirqd/023:50:190
23401994229,3cyclictest9-21ksoftirqd/021:35:270
23401994228,4cyclictest9-21ksoftirqd/019:45:140
23401994220,8cyclictest9-21ksoftirqd/022:40:120
2847191410,9ptp4l0-21swapper/320:13:443
2847191410,6ptp4l0-21swapper/323:25:013
2847191410,5ptp4l31326-21ls19:25:213
2847191410,5ptp4l0-21swapper/322:10:123
2847191410,5ptp4l0-21swapper/022:35:200
2847191410,5ptp4l0-21swapper/020:40:240
2847191410,5ptp4l0-21swapper/020:05:370
2847191410,4ptp4l7191-21ntp_states23:10:222
2847191410,4ptp4l14693-21users23:25:310
2847191410,4ptp4l0-21swapper/323:00:153
2847191410,4ptp4l0-21swapper/322:07:073
2847191410,4ptp4l0-21swapper/320:55:293
2847191410,4ptp4l0-21swapper/319:10:283
2847191410,4ptp4l0-21swapper/300:23:493
2847191410,4ptp4l0-21swapper/222:15:102
2847191410,4ptp4l0-21swapper/120:30:271
2847191410,4ptp4l0-21swapper/023:35:460
2847191410,4ptp4l0-21swapper/023:23:110
2847191410,4ptp4l0-21swapper/023:17:180
2847191410,4ptp4l0-21swapper/022:58:420
2847191410,4ptp4l0-21swapper/022:30:160
2847191410,4ptp4l0-21swapper/022:00:500
2847191410,4ptp4l0-21swapper/020:50:020
2847191410,4ptp4l0-21swapper/020:10:190
2847191410,4ptp4l0-21swapper/020:00:250
2847191410,4ptp4l0-21swapper/019:40:180
2847191410,4ptp4l0-21swapper/019:39:490
2847191410,4ptp4l0-21swapper/000:30:260
2847191410,3ptp4l7779-21df20:55:150
2847191410,3ptp4l7014-21ls23:10:191
2847191410,3ptp4l10705-21apt-get23:20:152
2847191410,3ptp4l0-21swapper/223:30:192
2847191410,3ptp4l0-21swapper/221:25:382
23402994126,4cyclictest25-21ksoftirqd/119:20:181
23402994125,4cyclictest25-21ksoftirqd/123:35:131
2340299411,3cyclictest121rcu_preempt20:51:051
2340199415,3cyclictest121rcu_preempt23:45:100
23401994129,3cyclictest9-21ksoftirqd/023:00:280
23401994128,3cyclictest9-21ksoftirqd/019:50:280
23401994126,4cyclictest9-21ksoftirqd/019:55:190
23401994115,3cyclictest9-21ksoftirqd/022:45:050
2847191400,6ptp4l0-21swapper/322:25:143
2847191400,5ptp4l18762-21ntpq23:35:203
2847191400,5ptp4l0-21swapper/322:57:423
2847191400,5ptp4l0-21swapper/319:50:133
2847191400,4ptp4l0-21swapper/323:55:163
2847191400,4ptp4l0-21swapper/323:52:583
2847191400,4ptp4l0-21swapper/323:20:483
2847191400,4ptp4l0-21swapper/321:45:233
2847191400,4ptp4l0-21swapper/321:45:233
2847191400,4ptp4l0-21swapper/321:05:183
2847191400,4ptp4l0-21swapper/319:40:233
2847191400,4ptp4l0-21swapper/300:13:273
2847191400,4ptp4l0-21swapper/300:07:053
2847191400,4ptp4l0-21swapper/220:32:332
2847191400,4ptp4l0-21swapper/220:21:482
2847191400,4ptp4l0-21swapper/123:55:201
2847191400,4ptp4l0-21swapper/023:40:490
2847191400,4ptp4l0-21swapper/023:05:220
2847191400,4ptp4l0-21swapper/022:17:010
2847191400,4ptp4l0-21swapper/021:02:010
2847191400,4ptp4l0-21swapper/020:45:430
2847191400,4ptp4l0-21swapper/020:20:360
2847191400,4ptp4l0-21swapper/020:15:090
2847191400,4ptp4l0-21swapper/019:27:070
2847191400,3ptp4l26859-21apt-get22:45:112
2847191400,3ptp4l1745-21ntp_states20:40:273
23402994027,3cyclictest25-21ksoftirqd/123:15:311
23402994025,4cyclictest25-21ksoftirqd/122:45:241
23402994025,4cyclictest25-21ksoftirqd/119:35:201
23402994012,4cyclictest25-21ksoftirqd/120:40:061
2340199402,3cyclictest121rcu_preempt23:30:280
2847191390,5ptp4l0-21swapper/321:10:163
2847191390,5ptp4l0-21swapper/320:05:493
2847191390,4ptp4l8715-21grep19:45:273
2847191390,4ptp4l15447-21sed00:35:292
2847191390,4ptp4l0-21swapper/323:10:113
2847191390,4ptp4l0-21swapper/322:45:223
2847191390,4ptp4l0-21swapper/322:35:163
2847191390,4ptp4l0-21swapper/321:42:203
2847191390,4ptp4l0-21swapper/321:27:273
2847191390,4ptp4l0-21swapper/321:15:303
2847191390,4ptp4l0-21swapper/320:45:183
2847191390,4ptp4l0-21swapper/320:30:293
2847191390,4ptp4l0-21swapper/319:35:213
2847191390,4ptp4l0-21swapper/319:30:113
2847191390,4ptp4l0-21swapper/319:15:283
2847191390,4ptp4l0-21swapper/300:30:143
2847191390,4ptp4l0-21swapper/300:15:153
2847191390,4ptp4l0-21swapper/222:30:112
2847191390,4ptp4l0-21swapper/221:30:252
2847191390,4ptp4l0-21swapper/221:00:312
2847191390,4ptp4l0-21swapper/220:35:162
2847191390,4ptp4l0-21swapper/220:03:132
2847191390,4ptp4l0-21swapper/219:20:252
2847191390,4ptp4l0-21swapper/200:13:302
2847191390,4ptp4l0-21swapper/122:25:191
2847191390,4ptp4l0-21swapper/121:25:211
2847191390,4ptp4l0-21swapper/000:25:150
2847191390,3ptp4l32350-21users20:35:301
2847191390,3ptp4l30194-21ls22:50:211
2847191390,3ptp4l0-21swapper/321:02:253
2847191390,2ptp4l29125-21strings19:20:223
2340299399,3cyclictest25-21ksoftirqd/119:45:251
2340299397,10cyclictest25-21ksoftirqd/122:01:161
23402993929,3cyclictest25-21ksoftirqd/100:10:001
23402993926,4cyclictest25-21ksoftirqd/100:15:281
23402993925,4cyclictest25-21ksoftirqd/119:40:171
23402993924,4cyclictest25-21ksoftirqd/123:50:301
23402993924,4cyclictest25-21ksoftirqd/122:30:271
23402993924,4cyclictest25-21ksoftirqd/121:05:221
23402993924,4cyclictest25-21ksoftirqd/119:32:071
23402993924,4cyclictest25-21ksoftirqd/119:10:151
23402993924,3cyclictest25-21ksoftirqd/123:00:201
23402993924,3cyclictest25-21ksoftirqd/120:20:241
2847191380,4ptp4l0-21swapper/323:30:063
2847191380,4ptp4l0-21swapper/100:35:561
2847191380,3ptp4l0-21swapper/223:49:362
2847191380,3ptp4l0-21swapper/220:05:222
2847191380,3ptp4l0-21swapper/122:57:361
2847191380,3ptp4l0-21swapper/121:41:361
2847191380,3ptp4l0-21swapper/120:25:341
2847191380,3ptp4l0-21swapper/100:30:381
2340299388,4cyclictest25-21ksoftirqd/121:00:211
2340299385,3cyclictest25-21ksoftirqd/123:20:281
23402993825,4cyclictest25-21ksoftirqd/100:20:311
23402993824,4cyclictest25-21ksoftirqd/123:40:151
23402993824,3cyclictest25-21ksoftirqd/123:05:311
23402993823,4cyclictest25-21ksoftirqd/121:35:201
23402993823,4cyclictest25-21ksoftirqd/119:55:181
2847191370,4ptp4l0-21swapper/121:55:141
2847191370,3ptp4l0-21swapper/223:40:132
2847191370,3ptp4l0-21swapper/122:16:301
2847191370,3ptp4l0-21swapper/121:45:331
2847191370,3ptp4l0-21swapper/121:45:321
23402993723,4cyclictest25-21ksoftirqd/121:50:221
23402993723,4cyclictest25-21ksoftirqd/120:10:241
23402993723,4cyclictest25-21ksoftirqd/120:00:251
23402993623,4cyclictest25-21ksoftirqd/122:05:251
23402993622,4cyclictest25-21ksoftirqd/120:15:161
215422162,7sleep121632-21iostat19:05:211
227992125,4sleep00-21swapper/019:06:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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