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2025-11-24 - 11:05
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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 Nov 24, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191650,5ptp4l0-21swapper/321:20:193
2847191650,2ptp4l10920-21hddtemp_smartct22:15:161
20601996126,7cyclictest9-21ksoftirqd/021:15:220
294712600,3sleep20-21swapper/220:35:292
2847191600,3ptp4l0-21swapper/019:32:440
20601995926,5cyclictest9-21ksoftirqd/022:55:270
2847191580,3ptp4l0-21swapper/119:15:151
2847191570,6ptp4l0-21swapper/119:05:271
2847191570,4ptp4l0-21swapper/123:52:331
2847191570,4ptp4l0-21swapper/121:16:041
2847191570,4ptp4l0-21swapper/119:28:441
2847191570,4ptp4l0-21swapper/022:19:090
2847191570,3ptp4l0-21swapper/122:22:581
2847191570,3ptp4l0-21swapper/022:00:200
20601995728,4cyclictest9-21ksoftirqd/023:50:150
2847191560,5ptp4l0-21swapper/019:08:040
2847191560,4ptp4l0-21swapper/000:25:410
2847191560,4ptp4l0-21swapper/000:25:410
2847191560,3ptp4l0-21swapper/219:22:092
2847191560,3ptp4l0-21swapper/120:50:501
2847191560,3ptp4l0-21swapper/120:10:551
20601995627,5cyclictest9-21ksoftirqd/020:15:180
20601995626,3cyclictest9-21ksoftirqd/023:40:220
20601995626,3cyclictest9-21ksoftirqd/023:40:220
20601995621,6cyclictest9-21ksoftirqd/022:10:200
20601995621,5cyclictest9-21ksoftirqd/020:05:240
20601995621,5cyclictest9-21ksoftirqd/020:05:240
2847191550,4ptp4l0-21swapper/122:04:411
2847191550,4ptp4l0-21swapper/121:06:351
2847191550,3ptp4l0-21swapper/120:45:321
20601995525,6cyclictest9-21ksoftirqd/022:50:180
20601995525,3cyclictest9-21ksoftirqd/000:00:140
2847191540,5ptp4l0-21swapper/000:20:190
2847191540,4ptp4l0-21swapper/321:40:533
2847191540,4ptp4l0-21swapper/122:56:531
2847191540,3ptp4l0-21swapper/122:25:071
20601995425,3cyclictest9-21ksoftirqd/022:35:260
20601995425,3cyclictest9-21ksoftirqd/021:05:260
20601995424,5cyclictest9-21ksoftirqd/000:15:190
20601995424,3cyclictest9-21ksoftirqd/019:45:150
20601995423,5cyclictest9-21ksoftirqd/019:55:000
2847191530,4ptp4l0-21swapper/300:10:353
20601995329,5cyclictest9-21ksoftirqd/019:55:170
20601995326,3cyclictest9-21ksoftirqd/023:20:190
20601995322,4cyclictest9-21ksoftirqd/021:45:200
20601995321,7cyclictest9-21ksoftirqd/021:40:010
20601995319,3cyclictest9-21ksoftirqd/020:40:170
2060199523,6cyclictest9-21ksoftirqd/023:05:010
20601995227,7cyclictest9-21ksoftirqd/021:00:010
20601995222,3cyclictest9-21ksoftirqd/023:35:130
20601995220,9cyclictest9-21ksoftirqd/019:35:280
2847191510,4ptp4l0-21swapper/019:40:390
2847191510,4ptp4l0-21swapper/000:31:110
2847191510,3ptp4l0-21swapper/122:42:421
2847191510,3ptp4l0-21swapper/019:20:200
2847191510,3ptp4l0-21swapper/019:17:380
2847191510,2ptp4l0-21swapper/122:36:011
20601995124,3cyclictest9-21ksoftirqd/021:40:190
20601995120,4cyclictest9-21ksoftirqd/020:20:160
2847191500,3ptp4l0-21swapper/321:02:503
2847191500,15ptp4l25-21ksoftirqd/123:21:391
2060199505,6cyclictest9-21ksoftirqd/020:25:140
2060199505,6cyclictest9-21ksoftirqd/000:10:210
20601995020,6cyclictest9-21ksoftirqd/000:35:190
20601995019,5cyclictest9-21ksoftirqd/021:20:200
2847191490,3ptp4l0-21swapper/323:03:223
2060199497,7cyclictest9-21ksoftirqd/023:15:000
2060199496,2cyclictest9-21ksoftirqd/021:00:000
20601994922,7cyclictest9-21ksoftirqd/023:55:260
20601994918,3cyclictest9-21ksoftirqd/021:34:260
2847191480,5ptp4l0-21swapper/223:45:182
2847191480,4ptp4l0-21swapper/320:17:443
20601994820,6cyclictest9-21ksoftirqd/021:25:260
20601994818,5cyclictest9-21ksoftirqd/022:20:150
20601994817,3cyclictest9-21ksoftirqd/021:50:190
20601994817,10cyclictest9-21ksoftirqd/022:25:220
20601994816,5cyclictest9-21ksoftirqd/021:55:280
2847191470,4ptp4l0-21swapper/320:36:443
2847191470,3ptp4l0-21swapper/323:12:213
2847191470,11ptp4l0-21swapper/322:54:153
20603994716,29cyclictest0-21swapper/220:15:302
2060199474,5cyclictest9-21ksoftirqd/022:30:160
2060199474,4cyclictest9-21ksoftirqd/020:45:140
2060199472,7cyclictest9-21ksoftirqd/020:30:270
20601994726,6cyclictest9-21ksoftirqd/023:35:010
2847191460,4ptp4l0-21swapper/100:10:441
2847191460,15ptp4l25-21ksoftirqd/119:46:271
2060199463,6cyclictest9-21ksoftirqd/020:50:290
20601994626,10cyclictest9-21ksoftirqd/019:10:260
2060199460,5cyclictest9-21ksoftirqd/023:50:000
2847191450,4ptp4l0-21swapper/319:41:013
2847191450,4ptp4l0-21swapper/120:02:031
2060199452,5cyclictest9-21ksoftirqd/022:05:130
2060199452,5cyclictest9-21ksoftirqd/000:05:160
2060199451,6cyclictest9-21ksoftirqd/023:15:190
2847191440,3ptp4l0-21swapper/321:35:523
2847191440,3ptp4l0-21swapper/320:14:213
2847191440,10ptp4l0-21swapper/023:28:330
20603994416,26cyclictest0-21swapper/221:40:202
20603994415,27cyclictest0-21swapper/223:55:292
2060199446,2cyclictest9-21ksoftirqd/020:00:180
2060199443,3cyclictest9-21ksoftirqd/020:36:530
20601994432,3cyclictest9-21ksoftirqd/023:05:160
2060199442,5cyclictest0-21swapper/022:45:140
2060199441,5cyclictest9-21ksoftirqd/020:10:270
2847191430,9ptp4l0-21swapper/223:43:442
2847191430,9ptp4l0-21swapper/223:43:432
2847191430,9ptp4l0-21swapper/222:31:142
2847191430,9ptp4l0-21swapper/221:45:522
2847191430,8ptp4l0-21swapper/123:41:011
2847191430,8ptp4l0-21swapper/123:41:011
2847191430,5ptp4l41-21ksoftirqd/323:45:193
2847191430,5ptp4l14338-21ntp_states23:30:252
2847191430,4ptp4l30277-21apt-get20:40:142
2847191430,4ptp4l0-21swapper/123:47:191
2847191430,4ptp4l0-21swapper/123:02:531
2847191430,4ptp4l0-21swapper/122:34:441
2847191430,4ptp4l0-21swapper/120:27:191
2847191430,3ptp4l0-21swapper/100:08:101
2847191430,10ptp4l0-21swapper/200:04:072
20601994333,3cyclictest9-21ksoftirqd/019:25:260
2060199432,5cyclictest9-21ksoftirqd/021:10:170
2847191420,9ptp4l0-21swapper/223:26:482
2847191420,9ptp4l0-21swapper/222:23:172
2847191420,9ptp4l0-21swapper/222:11:032
2847191420,5ptp4l5069-21df20:55:141
2847191420,4ptp4l9096-21df00:30:151
2847191420,4ptp4l24449-21apt-get22:45:122
2847191420,4ptp4l13108-21ls21:10:211
2847191420,4ptp4l0-21swapper/120:09:411
2847191420,4ptp4l0-21swapper/120:09:411
2847191420,3ptp4l21562-21apt-get21:30:122
2847191420,3ptp4l1924-21apt-get00:15:162
2847191410,8ptp4l0-21swapper/219:37:172
2847191410,8ptp4l0-21swapper/119:24:301
2847191410,5ptp4l0-21swapper/321:55:153
2847191410,5ptp4l0-21swapper/100:21:211
2847191410,4ptp4l29078-21apt-get22:55:132
2847191410,4ptp4l26763-21apt-get22:50:142
2847191410,4ptp4l0-21swapper/200:38:482
2847191410,4ptp4l0-21swapper/123:11:031
2847191410,4ptp4l0-21swapper/120:40:031
2847191410,4ptp4l0-21swapper/120:20:291
2847191410,3ptp4l7015-21hddtemp_smartct00:25:181
2847191410,3ptp4l7015-21hddtemp_smartct00:25:181
2847191410,3ptp4l0-21swapper/121:43:431
2847191410,3ptp4l0-21swapper/121:00:211
2847191410,1ptp4l0-21swapper/200:26:372
2847191410,1ptp4l0-21swapper/200:26:372
2060199413,5cyclictest9-21ksoftirqd/022:40:270
2847191400,8ptp4l0-21swapper/221:55:022
2847191400,5ptp4l3554-21latency_hist23:09:593
2847191400,5ptp4l31584-21users19:30:291
2847191400,5ptp4l0-21swapper/221:05:562
2847191400,5ptp4l0-21swapper/220:50:142
2847191400,5ptp4l0-21swapper/220:05:312
2847191400,5ptp4l0-21swapper/220:05:312
2847191400,5ptp4l0-21swapper/120:30:141
2847191400,4ptp4l4517-21apt-get19:45:132
2847191400,4ptp4l32537-21diskstats19:35:151
2847191400,4ptp4l31351-21df_inode21:50:141
2847191400,4ptp4l27077-21df_inode22:50:151
2847191400,4ptp4l2359-21python21:55:261
2847191400,4ptp4l21215-21iostat_ios19:10:201
2847191400,4ptp4l17254-21df_inode21:20:151
2847191400,4ptp4l10261-21ntp_states19:55:252
2847191400,4ptp4l0-21swapper/322:45:163
2847191400,4ptp4l0-21swapper/319:24:173
2847191400,4ptp4l0-21swapper/300:35:233
2847191400,4ptp4l0-21swapper/300:15:273
2847191400,4ptp4l0-21swapper/222:39:132
2847191400,4ptp4l0-21swapper/221:11:382
2847191400,4ptp4l0-21swapper/221:00:372
2847191400,4ptp4l0-21swapper/200:34:002
2847191400,4ptp4l0-21swapper/200:13:382
2847191400,4ptp4l0-21swapper/200:06:042
2847191400,4ptp4l0-21swapper/123:55:111
2847191400,4ptp4l0-21swapper/123:30:011
2847191400,4ptp4l0-21swapper/120:17:301
2847191400,4ptp4l0-21swapper/100:37:591
2847191400,4ptp4l0-21swapper/100:03:281
2847191400,3ptp4l8889-21apt-get00:30:143
2847191400,3ptp4l4471-21ntp_states22:00:262
2847191400,3ptp4l30199-21users21:45:281
2847191400,3ptp4l22135-21iostat21:30:173
2847191400,2ptp4l9915-21ls23:20:343
2060399403,34cyclictest25944-21latency_hist21:40:012
20603994011,27cyclictest0-21swapper/221:29:502
2060399400,3cyclictest29905-21apt-get19:30:142
68422390,5sleep10-21swapper/123:15:181
2847191390,5ptp4l16484-21/usr/sbin/munin23:35:201
2847191390,5ptp4l0-21swapper/322:25:093
2847191390,5ptp4l0-21swapper/319:55:133
2847191390,5ptp4l0-21swapper/300:26:273
2847191390,5ptp4l0-21swapper/300:26:263
2847191390,4ptp4l0-21swapper/323:58:583
2847191390,4ptp4l0-21swapper/323:40:033
2847191390,4ptp4l0-21swapper/323:40:033
2847191390,4ptp4l0-21swapper/322:55:193
2847191390,4ptp4l0-21swapper/321:10:253
2847191390,4ptp4l0-21swapper/321:05:183
2847191390,4ptp4l0-21swapper/320:57:293
2847191390,4ptp4l0-21swapper/319:38:233
2847191390,4ptp4l0-21swapper/319:11:093
2847191390,4ptp4l0-21swapper/223:52:222
2847191390,4ptp4l0-21swapper/223:35:072
2847191390,4ptp4l0-21swapper/223:19:162
2847191390,4ptp4l0-21swapper/223:10:352
2847191390,4ptp4l0-21swapper/223:06:362
2847191390,4ptp4l0-21swapper/223:00:222
2847191390,4ptp4l0-21swapper/222:41:302
2847191390,4ptp4l0-21swapper/222:29:082
2847191390,4ptp4l0-21swapper/222:17:022
2847191390,4ptp4l0-21swapper/222:06:342
2847191390,4ptp4l0-21swapper/221:53:142
2847191390,4ptp4l0-21swapper/221:17:342
2847191390,4ptp4l0-21swapper/220:45:122
2847191390,4ptp4l0-21swapper/220:34:212
2847191390,4ptp4l0-21swapper/220:27:172
2847191390,4ptp4l0-21swapper/220:20:082
2847191390,4ptp4l0-21swapper/220:12:112
2847191390,4ptp4l0-21swapper/220:01:422
2847191390,4ptp4l0-21swapper/219:52:322
2847191390,4ptp4l0-21swapper/219:41:072
2847191390,4ptp4l0-21swapper/219:27:232
2847191390,4ptp4l0-21swapper/219:16:132
2847191390,4ptp4l0-21swapper/219:14:202
2847191390,4ptp4l0-21swapper/200:20:422
2847191390,4ptp4l0-21swapper/122:46:381
2847191390,4ptp4l0-21swapper/121:30:191
2847191390,4ptp4l0-21swapper/119:56:011
2847191390,4ptp4l0-21swapper/119:52:391
2847191390,4ptp4l0-21swapper/100:16:411
2847191390,3ptp4l6499-21irqstats22:05:171
2847191390,3ptp4l10950-21df_inode23:25:151
2847191390,3ptp4l0-21swapper/120:35:251
2847191380,4ptp4l23963-21sed20:25:193
2847191380,4ptp4l0-21swapper/323:37:113
2847191380,4ptp4l0-21swapper/323:28:483
2847191380,4ptp4l0-21swapper/322:42:543
2847191380,4ptp4l0-21swapper/322:15:553
2847191380,4ptp4l0-21swapper/322:11:053
2847191380,4ptp4l0-21swapper/321:25:553
2847191380,4ptp4l0-21swapper/320:54:523
2847191380,4ptp4l0-21swapper/320:24:093
2847191380,4ptp4l0-21swapper/320:00:183
2847191380,4ptp4l0-21swapper/319:49:213
2847191380,4ptp4l0-21swapper/319:25:413
2847191380,4ptp4l0-21swapper/300:06:473
2847191380,4ptp4l0-21swapper/223:20:502
2847191380,4ptp4l0-21swapper/220:55:242
2847191380,4ptp4l0-21swapper/119:40:191
2847191380,3ptp4l24185-21df_inode21:35:151
2847191380,3ptp4l16479-21apt-get21:20:022
2847191380,3ptp4l0-21swapper/322:33:073
2847191380,3ptp4l0-21swapper/320:45:233
2847191380,3ptp4l0-21swapper/123:05:131
2847191380,3ptp4l0-21swapper/122:14:391
2847191380,3ptp4l0-21swapper/121:25:201
2847191370,4ptp4l0-21swapper/323:33:373
2847191370,4ptp4l0-21swapper/323:17:503
2847191370,4ptp4l0-21swapper/321:45:123
2847191370,4ptp4l0-21swapper/319:17:543
2847191370,3ptp4l0-21swapper/322:39:283
2847191370,3ptp4l0-21swapper/322:05:143
2847191370,3ptp4l0-21swapper/320:41:243
2847191370,3ptp4l0-21swapper/320:31:323
2847191370,3ptp4l0-21swapper/319:53:343
2847191360,4ptp4l0-21swapper/322:21:133
2847191360,4ptp4l0-21swapper/322:01:463
2847191360,4ptp4l0-21swapper/321:50:073
2847191360,3ptp4l0-21swapper/323:52:253
2847191360,3ptp4l0-21swapper/321:16:373
2847191340,3ptp4l0-21swapper/319:31:433
2847191340,3ptp4l0-21swapper/300:22:443
2847191330,4ptp4l0-21swapper/320:05:343
2847191330,4ptp4l0-21swapper/320:05:343
2847191310,4ptp4l0-21swapper/300:01:563
182402263,13sleep318255-21apt-get19:05:133
184642131,6sleep218572-21diskstats19:05:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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