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2025-07-07 - 02:14
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Sun Jul 06, 2025 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
208542730,4sleep00-21swapper/007:30:150
1143199685,24cyclictest16469-21timerwakeupswit10:45:292
2847191670,3ptp4l0-21swapper/010:25:280
2847191640,21ptp4l11780-21apt-get08:20:100
2847191620,5ptp4l0-21swapper/010:10:140
2847191620,5ptp4l0-21swapper/010:10:140
1143199618,23cyclictest25823-21grep12:15:262
11430996126,8cyclictest25-21ksoftirqd/109:51:321
2847191600,4ptp4l0-21swapper/211:29:452
2847191600,13ptp4l24973-21users07:35:290
2847191590,4ptp4l0-21swapper/211:31:382
2847191590,4ptp4l0-21swapper/007:53:080
2847191580,5ptp4l0-21swapper/108:55:211
2847191580,4ptp4l0-21swapper/210:31:352
11430995821,8cyclictest25-21ksoftirqd/109:59:091
2847191570,4ptp4l0-21swapper/307:08:333
2847191570,4ptp4l0-21swapper/111:51:521
2847191570,3ptp4l0-21swapper/112:37:091
2847191560,4ptp4l0-21swapper/309:44:233
2847191560,4ptp4l0-21swapper/110:30:461
2847191560,3ptp4l0-21swapper/008:30:000
2847191560,13ptp4l9087-21apt-get07:05:152
2847191550,4ptp4l0-21swapper/110:22:571
2847191550,4ptp4l0-21swapper/107:48:361
2847191550,3ptp4l0-21swapper/011:10:280
2847191550,10ptp4l0-21swapper/009:05:480
2847191540,11ptp4l0-21swapper/008:51:270
11430995415,8cyclictest25-21ksoftirqd/110:25:171
105542540,7sleep11143099cyclictest08:15:261
2847191530,8ptp4l0-21swapper/010:07:230
2847191530,3ptp4l0-21swapper/310:54:213
2847191520,4ptp4l0-21swapper/011:01:140
2847191520,3ptp4l0-21swapper/110:04:421
2847191520,3ptp4l0-21swapper/109:19:541
2847191520,3ptp4l0-21swapper/108:41:321
11430995225,6cyclictest25-21ksoftirqd/109:00:271
2847191510,4ptp4l0-21swapper/110:11:281
2847191510,4ptp4l0-21swapper/110:11:281
2847191510,4ptp4l0-21swapper/108:05:511
2847191510,3ptp4l0-21swapper/109:46:451
2847191510,3ptp4l0-21swapper/011:37:570
11430995115,8cyclictest25-21ksoftirqd/108:20:141
2847191500,4ptp4l0-21swapper/311:36:553
2847191500,4ptp4l0-21swapper/110:58:391
2847191500,4ptp4l0-21swapper/108:33:471
2847191500,3ptp4l30545-21apt-get09:00:130
11430995037,3cyclictest25-21ksoftirqd/108:25:221
11430995025,3cyclictest25-21ksoftirqd/107:56:531
11430995023,3cyclictest25-21ksoftirqd/110:40:551
11430995022,6cyclictest25-21ksoftirqd/112:05:291
11430995022,6cyclictest25-21ksoftirqd/112:05:291
11430995022,4cyclictest25-21ksoftirqd/111:55:191
11430995021,3cyclictest25-21ksoftirqd/107:50:351
2847191490,4ptp4l0-21swapper/010:46:030
2847191490,3ptp4l0-21swapper/109:25:301
2847191490,3ptp4l0-21swapper/107:18:171
2847191490,3ptp4l0-21swapper/008:58:490
1143099497,3cyclictest25-21ksoftirqd/111:45:221
11430994926,6cyclictest25-21ksoftirqd/108:49:461
11430994925,6cyclictest25-21ksoftirqd/112:25:211
11430994917,7cyclictest25-21ksoftirqd/107:35:291
2847191480,4ptp4l0-21swapper/009:31:420
2847191480,3ptp4l0-21swapper/111:03:441
11430994825,5cyclictest25-21ksoftirqd/110:51:571
11430994823,7cyclictest25-21ksoftirqd/111:35:151
11430994823,4cyclictest25-21ksoftirqd/108:53:021
11430994822,3cyclictest25-21ksoftirqd/110:35:501
11430994821,3cyclictest25-21ksoftirqd/111:13:261
11430994818,4cyclictest25-21ksoftirqd/110:49:181
11430994815,7cyclictest25-21ksoftirqd/107:40:171
2847191470,5ptp4l0-21swapper/012:05:250
2847191470,5ptp4l0-21swapper/012:05:240
2847191470,4ptp4l0-21swapper/311:03:513
2847191470,3ptp4l0-21swapper/311:14:223
1143199472,40cyclictest16448-21apt-get08:30:122
11430994722,3cyclictest25-21ksoftirqd/107:30:141
11430994720,7cyclictest25-21ksoftirqd/112:20:291
11430994720,7cyclictest25-21ksoftirqd/111:33:301
11430994719,7cyclictest25-21ksoftirqd/112:15:161
11430994715,8cyclictest25-21ksoftirqd/112:35:001
2847191460,4ptp4l0-21swapper/211:03:512
2847191460,3ptp4l0-21swapper/110:15:291
2847191460,3ptp4l0-21swapper/011:50:400
11430994628,4cyclictest25-21ksoftirqd/109:35:131
11430994614,7cyclictest25-21ksoftirqd/108:00:181
11430994612,6cyclictest25-21ksoftirqd/107:10:201
11430994610,7cyclictest25-21ksoftirqd/111:20:121
11430994610,11cyclictest25-21ksoftirqd/110:05:111
2847191450,9ptp4l0-21swapper/211:44:232
2847191450,9ptp4l0-21swapper/209:47:522
2847191450,4ptp4l24028-21apt-get12:15:030
2847191450,4ptp4l101ktimersoftd/008:00:230
2847191450,10ptp4l0-21swapper/208:57:162
11430994517,4cyclictest25-21ksoftirqd/111:20:001
2847191440,9ptp4l0-21swapper/211:37:342
2847191440,9ptp4l0-21swapper/211:14:572
2847191440,9ptp4l0-21swapper/210:36:462
2847191440,9ptp4l0-21swapper/210:20:402
2847191440,9ptp4l0-21swapper/208:18:322
2847191440,5ptp4l41-21ksoftirqd/311:45:193
2847191440,4ptp4l28523-21apt-get10:05:132
2847191440,4ptp4l0-21swapper/012:26:490
2847191440,3ptp4l0-21swapper/008:35:490
2847191440,3ptp4l0-21swapper/007:49:560
1143199440,3cyclictest207-21systemd-journal12:00:412
11430994432,4cyclictest25-21ksoftirqd/109:33:071
11430994421,4cyclictest25-21ksoftirqd/111:40:201
2847191430,9ptp4l0-21swapper/209:19:122
2847191430,9ptp4l0-21swapper/208:38:142
2847191430,6ptp4l1356-21diskstats11:25:200
2847191430,5ptp4l6146-21ls09:15:230
2847191430,5ptp4l3770-21memory09:10:201
2847191430,4ptp4l23830-21hddtemp_smartct08:45:182
2847191430,4ptp4l13769-21apt-get07:15:120
2847191430,4ptp4l0-21swapper/311:28:333
2847191430,4ptp4l0-21swapper/012:31:430
2847191430,3ptp4l0-21swapper/009:13:570
11430994331,3cyclictest25-21ksoftirqd/109:23:141
1143099432,3cyclictest25-21ksoftirqd/107:20:281
11429994338,3cyclictest9-21ksoftirqd/011:00:000
2847191420,9ptp4l0-21swapper/207:53:272
2847191420,8ptp4l0-21swapper/007:22:540
2847191420,6ptp4l28509-21/usr/sbin/munin10:05:133
2847191420,5ptp4l0-21swapper/310:55:223
2847191420,4ptp4l22395-21hddtemp_smartct12:10:180
2847191420,4ptp4l21932-21irqstats08:40:190
2847191420,4ptp4l14587-21df09:35:140
2847191420,4ptp4l0-21swapper/311:09:013
2847191420,4ptp4l0-21swapper/308:54:363
2847191420,4ptp4l0-21swapper/307:53:363
2847191420,4ptp4l0-21swapper/208:25:242
2847191420,4ptp4l0-21swapper/010:37:520
2847191420,4ptp4l0-21swapper/010:17:000
2847191420,4ptp4l0-21swapper/007:41:030
2847191420,3ptp4l4080-21ls10:20:220
2847191420,3ptp4l0-21swapper/108:10:221
2847191420,3ptp4l0-21swapper/011:43:170
1143199421,3cyclictest30530-21/usr/sbin/munin09:00:302
1143099425,3cyclictest25-21ksoftirqd/111:09:221
11430994217,8cyclictest25-21ksoftirqd/107:25:201
2847191410,5ptp4l11020-21/usr/sbin/munin09:25:270
2847191410,5ptp4l0-21swapper/209:30:122
2847191410,5ptp4l0-21swapper/209:11:232
2847191410,5ptp4l0-21swapper/209:05:242
2847191410,4ptp4l539-21hddtemp_smartct07:55:190
2847191410,4ptp4l31717-21iostat11:20:200
2847191410,4ptp4l2068-21memory11:25:251
2847191410,4ptp4l17828-21/usr/sbin/munin10:50:190
2847191410,4ptp4l0-21swapper/312:00:133
2847191410,4ptp4l0-21swapper/311:40:163
2847191410,4ptp4l0-21swapper/211:21:162
2847191410,4ptp4l0-21swapper/211:08:342
2847191410,4ptp4l0-21swapper/210:57:012
2847191410,4ptp4l0-21swapper/210:26:422
2847191410,4ptp4l0-21swapper/210:18:072
2847191410,4ptp4l0-21swapper/210:03:052
2847191410,4ptp4l0-21swapper/209:56:052
2847191410,4ptp4l0-21swapper/209:43:042
2847191410,4ptp4l0-21swapper/209:39:492
2847191410,4ptp4l0-21swapper/209:25:522
2847191410,4ptp4l0-21swapper/208:12:322
2847191410,4ptp4l0-21swapper/208:05:592
2847191410,4ptp4l0-21swapper/208:02:112
2847191410,4ptp4l0-21swapper/207:46:352
2847191410,4ptp4l0-21swapper/207:15:522
2847191410,4ptp4l0-21swapper/112:00:151
2847191410,4ptp4l0-21swapper/011:06:010
2847191410,4ptp4l0-21swapper/010:31:200
2847191410,4ptp4l0-21swapper/008:15:220
2847191410,3ptp4l18753-21apt-get08:35:121
1143199410,4cyclictest11462-21apt-get07:10:132
1143099415,2cyclictest25-21ksoftirqd/109:40:451
11430994114,3cyclictest25-21ksoftirqd/109:05:261
2847191400,5ptp4l0-21swapper/308:23:003
2847191400,5ptp4l0-21swapper/011:15:360
2847191400,4ptp4l27900-21/usr/sbin/munin12:20:230
2847191400,4ptp4l15399-21hddtemp_smartct11:55:170
2847191400,4ptp4l0-21swapper/309:50:223
2847191400,4ptp4l0-21swapper/309:15:263
2847191400,4ptp4l0-21swapper/309:12:493
2847191400,4ptp4l0-21swapper/308:07:213
2847191400,4ptp4l0-21swapper/212:37:222
2847191400,4ptp4l0-21swapper/212:30:442
2847191400,4ptp4l0-21swapper/212:21:152
2847191400,4ptp4l0-21swapper/212:10:092
2847191400,4ptp4l0-21swapper/211:51:352
2847191400,4ptp4l0-21swapper/211:46:112
2847191400,4ptp4l0-21swapper/211:16:262
2847191400,4ptp4l0-21swapper/210:50:592
2847191400,4ptp4l0-21swapper/210:42:172
2847191400,4ptp4l0-21swapper/210:10:182
2847191400,4ptp4l0-21swapper/210:10:182
2847191400,4ptp4l0-21swapper/209:50:092
2847191400,4ptp4l0-21swapper/209:20:582
2847191400,4ptp4l0-21swapper/208:50:212
2847191400,4ptp4l0-21swapper/208:40:292
2847191400,4ptp4l0-21swapper/208:23:222
2847191400,4ptp4l0-21swapper/207:57:032
2847191400,4ptp4l0-21swapper/207:40:122
2847191400,4ptp4l0-21swapper/207:39:292
2847191400,4ptp4l0-21swapper/207:33:212
2847191400,4ptp4l0-21swapper/207:28:062
2847191400,4ptp4l0-21swapper/207:24:362
2847191400,4ptp4l0-21swapper/011:45:180
2847191400,4ptp4l0-21swapper/011:30:210
2847191400,4ptp4l0-21swapper/010:41:390
2847191400,4ptp4l0-21swapper/010:00:390
2847191400,4ptp4l0-21swapper/009:52:200
2847191400,4ptp4l0-21swapper/009:47:580
2847191400,4ptp4l0-21swapper/008:45:270
2847191400,4ptp4l0-21swapper/007:25:200
2847191400,3ptp4l8094-21meminfo08:10:210
2847191400,3ptp4l24460-21iostat09:55:180
2847191400,3ptp4l1905-21diskstats12:35:150
2847191400,3ptp4l17076-21diskstats09:40:160
2847191400,3ptp4l0-21swapper/009:21:190
1143099400,3cyclictest121rcu_preempt12:10:171
2847191390,5ptp4l0-21swapper/008:25:110
2847191390,4ptp4l17332-21/usr/sbin/munin12:00:260
2847191390,4ptp4l0-21swapper/310:48:083
2847191390,4ptp4l0-21swapper/310:38:183
2847191390,4ptp4l0-21swapper/310:13:443
2847191390,4ptp4l0-21swapper/310:13:443
2847191390,4ptp4l0-21swapper/310:00:323
2847191390,4ptp4l0-21swapper/309:07:183
2847191390,4ptp4l0-21swapper/308:55:143
2847191390,4ptp4l0-21swapper/308:40:293
2847191390,4ptp4l0-21swapper/308:31:163
2847191390,4ptp4l0-21swapper/212:07:422
2847191390,4ptp4l0-21swapper/212:07:412
2847191390,4ptp4l0-21swapper/211:55:582
2847191390,4ptp4l0-21swapper/008:05:290
2847191390,3ptp4l0-21swapper/310:23:133
2847191390,3ptp4l0-21swapper/007:10:240
2847191390,2ptp4l0-21swapper/311:20:133
2847191380,5ptp4l0-21swapper/308:00:213
2847191380,4ptp4l0-21swapper/311:15:163
2847191380,4ptp4l0-21swapper/310:42:203
2847191380,4ptp4l0-21swapper/310:31:203
2847191380,4ptp4l0-21swapper/309:25:533
2847191380,4ptp4l0-21swapper/309:22:343
2847191380,4ptp4l0-21swapper/308:45:583
2847191380,4ptp4l0-21swapper/307:24:373
2847191380,4ptp4l0-21swapper/212:26:162
2847191380,3ptp4l0-21swapper/311:52:083
2847191380,3ptp4l0-21swapper/309:01:003
2847191380,3ptp4l0-21swapper/307:15:023
2847191370,4ptp4l0-21swapper/312:36:523
2847191370,4ptp4l0-21swapper/309:46:273
2847191370,4ptp4l0-21swapper/308:12:333
2847191370,4ptp4l0-21swapper/307:59:253
2847191370,4ptp4l0-21swapper/307:35:073
2847191370,4ptp4l0-21swapper/307:33:593
2847191370,3ptp4l0-21swapper/312:30:063
2847191370,3ptp4l0-21swapper/312:15:573
2847191370,3ptp4l0-21swapper/311:33:053
2847191370,3ptp4l0-21swapper/308:36:213
2847191370,3ptp4l0-21swapper/308:27:353
2847191370,3ptp4l0-21swapper/308:16:533
2849691365,24phc2sys0-21swapper/107:05:171
2847191360,4ptp4l0-21swapper/312:26:253
2847191360,4ptp4l0-21swapper/309:39:233
2847191360,4ptp4l0-21swapper/307:25:143
2847191360,4ptp4l0-21swapper/307:10:013
2847191360,3ptp4l0-21swapper/309:30:133
2847191340,4ptp4l0-21swapper/312:07:003
2847191340,4ptp4l0-21swapper/312:06:593
2847191340,4ptp4l0-21swapper/307:44:353
2847191340,3ptp4l0-21swapper/310:18:313
2847191330,3ptp4l0-21swapper/307:47:423
2847191320,3ptp4l0-21swapper/309:58:333
2847191300,4ptp4l0-21swapper/310:28:173
41798270,5rtkit-daemon0-21swapper/007:05:390
2849491240,10getstats0-21swapper/312:22:163
2849491230,10getstats0-21swapper/311:55:113
1143299206,5cyclictest2849491getstats12:10:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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