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2025-10-29 - 06:40
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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 Wed Oct 29, 2025 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191770,4ptp4l0-21swapper/120:28:371
2847191660,3ptp4l30760-21df_abs21:55:151
2847191650,4ptp4l29370-21/usr/sbin/munin19:30:291
18182996534,4cyclictest33-21ksoftirqd/220:20:002
2847191640,4ptp4l0-21swapper/100:19:371
2847191640,4ptp4l0-21swapper/020:30:300
2847191630,3ptp4l19856-21apt-get23:50:143
2847191630,3ptp4l121rcu_preempt22:40:251
37182620,5sleep10-21swapper/123:15:151
2847191610,3ptp4l25458-21memory00:00:221
2847191600,4ptp4l0-21swapper/122:35:201
18182996024,8cyclictest33-21ksoftirqd/222:17:212
1818299602,31cyclictest0-21swapper/222:51:302
18182995925,11cyclictest33-21ksoftirqd/223:10:002
2847191580,5ptp4l17931-21ls19:10:000
2847191580,4ptp4l0-21swapper/023:50:290
18182995826,6cyclictest33-21ksoftirqd/221:40:002
18182995825,6cyclictest33-21ksoftirqd/219:15:232
18182995823,7cyclictest33-21ksoftirqd/219:11:462
1818299582,31cyclictest0-21swapper/222:25:002
1818299582,30cyclictest0-21swapper/223:35:182
18182995822,5cyclictest33-21ksoftirqd/221:45:002
2847191570,4ptp4l0-21swapper/120:15:271
2847191570,3ptp4l0-21swapper/319:21:453
2847191570,3ptp4l0-21swapper/119:29:081
2847191570,2ptp4l0-21swapper/220:56:362
18182995726,6cyclictest33-21ksoftirqd/200:10:152
18182995726,4cyclictest33-21ksoftirqd/222:55:222
18182995723,6cyclictest33-21ksoftirqd/223:30:012
1818299572,31cyclictest0-21swapper/219:35:172
18182995722,8cyclictest33-21ksoftirqd/219:58:122
1818299572,28cyclictest0-21swapper/221:51:252
2847191560,3ptp4l0-21swapper/021:20:240
2847191560,11ptp4l0-21swapper/320:40:433
18182995629,3cyclictest33-21ksoftirqd/200:20:152
18182995629,3cyclictest33-21ksoftirqd/200:20:142
18182995626,5cyclictest33-21ksoftirqd/222:37:032
1818299562,29cyclictest0-21swapper/223:20:232
1818299562,28cyclictest0-21swapper/223:49:592
1818299562,28cyclictest0-21swapper/223:49:592
18182995621,8cyclictest33-21ksoftirqd/220:01:052
18182995621,7cyclictest33-21ksoftirqd/222:08:352
18182995619,8cyclictest33-21ksoftirqd/219:27:272
2847191550,3ptp4l0-21swapper/319:56:513
2847191550,3ptp4l0-21swapper/121:50:191
2847191550,2ptp4l0-21swapper/123:05:151
18182995520,6cyclictest33-21ksoftirqd/221:15:282
2847191540,4ptp4l0-21swapper/121:48:421
2847191540,3ptp4l0-21swapper/321:30:163
2847191540,3ptp4l0-21swapper/319:41:213
18182995422,7cyclictest33-21ksoftirqd/222:45:192
18182995422,7cyclictest33-21ksoftirqd/222:45:192
1818299542,27cyclictest0-21swapper/222:29:582
18182995421,8cyclictest33-21ksoftirqd/220:44:382
18182995420,13cyclictest33-21ksoftirqd/222:43:332
2847191530,4ptp4l0-21swapper/122:18:401
2847191530,3ptp4l0-21swapper/123:45:441
2847191530,3ptp4l0-21swapper/123:45:441
2847191530,13ptp4l0-21swapper/123:55:541
18182995323,7cyclictest33-21ksoftirqd/219:35:002
18182995320,6cyclictest33-21ksoftirqd/223:45:002
18182995320,3cyclictest33-21ksoftirqd/200:07:072
18182995318,7cyclictest33-21ksoftirqd/200:04:542
18182995317,7cyclictest33-21ksoftirqd/221:49:572
2847191520,4ptp4l0-21swapper/322:55:553
2847191520,4ptp4l0-21swapper/123:02:261
2847191520,4ptp4l0-21swapper/122:59:511
2847191520,4ptp4l0-21swapper/122:49:391
2847191520,4ptp4l0-21swapper/122:49:391
2847191520,4ptp4l0-21swapper/119:38:231
2847191520,3ptp4l0-21swapper/323:03:353
2847191520,3ptp4l0-21swapper/120:50:571
2847191520,3ptp4l0-21swapper/119:48:471
18182995221,9cyclictest33-21ksoftirqd/220:15:002
18182995218,7cyclictest33-21ksoftirqd/221:21:572
2847191510,4ptp4l0-21swapper/319:31:403
2847191510,4ptp4l0-21swapper/122:14:481
2847191510,4ptp4l0-21swapper/120:04:551
2847191510,4ptp4l0-21swapper/119:40:271
2847191510,11ptp4l0-21swapper/121:15:301
18182995125,7cyclictest33-21ksoftirqd/223:10:292
18182995122,4cyclictest33-21ksoftirqd/219:55:002
18182995117,7cyclictest33-21ksoftirqd/220:08:112
18182995115,8cyclictest33-21ksoftirqd/222:12:202
1818299510,6cyclictest33-21ksoftirqd/219:45:242
2849491500,3getstats16778-21grep21:25:150
2847191500,7ptp4l0-21swapper/121:25:011
2847191500,4ptp4l0-21swapper/220:46:182
2847191500,4ptp4l0-21swapper/122:08:151
2847191500,3ptp4l0-21swapper/122:22:251
2847191500,3ptp4l0-21swapper/121:01:221
2847191500,3ptp4l0-21swapper/119:12:021
18182995025,8cyclictest33-21ksoftirqd/200:30:162
18182995021,8cyclictest33-21ksoftirqd/221:30:142
2847191490,5ptp4l0-21swapper/219:07:262
2847191490,4ptp4l0-21swapper/322:17:553
2847191490,4ptp4l0-21swapper/321:21:013
2847191490,3ptp4l0-21swapper/122:32:441
1818299492,22cyclictest0-21swapper/221:26:032
18182994919,6cyclictest33-21ksoftirqd/220:25:192
18182994918,6cyclictest33-21ksoftirqd/222:31:242
18182994917,7cyclictest33-21ksoftirqd/223:57:382
18182994916,6cyclictest33-21ksoftirqd/221:55:202
18182994915,5cyclictest33-21ksoftirqd/220:21:152
2847191480,3ptp4l121rcu_preempt23:40:000
2847191480,3ptp4l0-21swapper/121:10:001
2847191480,3ptp4l0-21swapper/120:57:281
1818299483,7cyclictest0-21swapper/219:20:312
1818299472,7cyclictest0-21swapper/200:35:232
2847191460,4ptp4l0-21swapper/320:54:543
2847191460,4ptp4l0-21swapper/221:10:072
2847191460,3ptp4l0-21swapper/100:12:471
2847191460,10ptp4l0-21swapper/322:50:313
1818299464,6cyclictest32667-21tr00:15:222
18182994615,7cyclictest33-21ksoftirqd/222:02:052
18182994612,7cyclictest33-21ksoftirqd/221:05:342
2847191450,4ptp4l0-21swapper/019:25:140
2847191450,4ptp4l0-21swapper/000:12:240
2847191450,3ptp4l0-21swapper/323:27:093
2847191450,3ptp4l0-21swapper/320:09:573
1818299452,7cyclictest0-21swapper/220:50:312
18182994519,3cyclictest33-21ksoftirqd/220:30:222
2847191440,5ptp4l18925-21apt-get21:30:121
2847191440,4ptp4l8545-21apt-get00:35:131
2847191440,4ptp4l0-21swapper/120:06:591
2847191440,10ptp4l0-21swapper/022:05:250
1818299445,3cyclictest33-21ksoftirqd/223:30:282
1818299442,6cyclictest0-21swapper/223:50:292
18182994417,8cyclictest33-21ksoftirqd/221:00:182
18182994415,7cyclictest33-21ksoftirqd/219:40:472
2847191430,4ptp4l30587-21iostat_ios19:35:180
2847191430,4ptp4l20264-21users20:20:320
2847191430,4ptp4l15227-21apt-get23:40:131
2847191430,4ptp4l12283-21diskstats21:15:180
2847191430,4ptp4l1195-21apt-get23:10:141
2847191430,4ptp4l0-21swapper/319:06:533
2847191430,4ptp4l0-21swapper/021:47:290
2847191430,4ptp4l0-21swapper/020:02:080
1818299435,2cyclictest33-21ksoftirqd/223:15:282
18182994323,3cyclictest33-21ksoftirqd/220:35:162
18182994311,5cyclictest33-21ksoftirqd/200:25:182
2847191420,5ptp4l2743-21hddtemp_smartct19:45:180
2847191420,5ptp4l0-21swapper/323:35:123
2847191420,5ptp4l0-21swapper/319:15:253
2847191420,5ptp4l0-21swapper/119:05:221
2847191420,5ptp4l0-21swapper/022:53:230
2847191420,5ptp4l0-21swapper/020:05:220
2847191420,5ptp4l0-21swapper/019:30:140
2847191420,4ptp4l7196-21meminfo00:30:221
2847191420,4ptp4l6831-21apt-get21:05:030
2847191420,4ptp4l32570-21apt-get22:00:010
2847191420,4ptp4l20473-21memory22:40:230
2847191420,4ptp4l15253-21meminfo21:20:211
2847191420,4ptp4l0-21swapper/121:05:081
2847191420,4ptp4l0-21swapper/020:51:380
2847191420,3ptp4l21236-21apt-get21:35:131
1818299427,6cyclictest33-21ksoftirqd/223:00:252
2847191410,7ptp4l0-21swapper/100:26:231
2847191410,6ptp4l0-21swapper/022:15:300
2847191410,5ptp4l962-21dump-pmu-power23:10:000
2847191410,5ptp4l0-21swapper/122:50:201
2847191410,5ptp4l0-21swapper/122:25:151
2847191410,5ptp4l0-21swapper/120:35:151
2847191410,5ptp4l0-21swapper/021:53:590
2847191410,5ptp4l0-21swapper/020:10:170
2847191410,5ptp4l0-21swapper/019:55:160
2847191410,4ptp4l4242-21df_inode00:25:170
2847191410,4ptp4l29571-21iostat_ios23:00:190
2847191410,4ptp4l23646-21hddtemp_smartct20:30:183
2847191410,4ptp4l0-21swapper/323:20:203
2847191410,4ptp4l0-21swapper/323:15:143
2847191410,4ptp4l0-21swapper/322:42:433
2847191410,4ptp4l0-21swapper/320:36:003
2847191410,4ptp4l0-21swapper/320:15:313
2847191410,4ptp4l0-21swapper/319:50:513
2847191410,4ptp4l0-21swapper/120:41:121
2847191410,4ptp4l0-21swapper/120:10:161
2847191410,4ptp4l0-21swapper/023:55:130
2847191410,4ptp4l0-21swapper/022:59:400
2847191410,4ptp4l0-21swapper/021:41:260
2847191410,4ptp4l0-21swapper/021:35:240
2847191410,4ptp4l0-21swapper/020:42:560
2847191410,4ptp4l0-21swapper/020:16:130
2847191410,4ptp4l0-21swapper/019:54:580
2847191410,3ptp4l6876-21memory23:20:250
2847191410,3ptp4l20277-21python21:30:260
2847191410,3ptp4l10882-21irqstats22:20:210
2847191410,3ptp4l0-21swapper/123:53:521
2847191410,1ptp4l0-21swapper/322:26:113
18183994136,3cyclictest1293-21snmpd22:05:153
2847191400,5ptp4l12547-21df22:25:140
2847191400,5ptp4l0-21swapper/322:22:493
2847191400,5ptp4l0-21swapper/019:42:420
2847191400,5ptp4l0-21swapper/019:10:190
2847191400,4ptp4l2967-21/usr/sbin/munin00:20:271
2847191400,4ptp4l2967-21/usr/sbin/munin00:20:271
2847191400,4ptp4l14961-21df_inode22:30:170
2847191400,4ptp4l11941-21python23:30:280
2847191400,4ptp4l0-21swapper/322:00:133
2847191400,4ptp4l0-21swapper/320:55:223
2847191400,4ptp4l0-21swapper/320:25:133
2847191400,4ptp4l0-21swapper/319:40:013
2847191400,4ptp4l0-21swapper/319:14:553
2847191400,4ptp4l0-21swapper/300:15:173
2847191400,4ptp4l0-21swapper/121:40:231
2847191400,4ptp4l0-21swapper/120:20:161
2847191400,4ptp4l0-21swapper/119:51:241
2847191400,4ptp4l0-21swapper/023:45:470
2847191400,4ptp4l0-21swapper/023:45:470
2847191400,4ptp4l0-21swapper/023:15:170
2847191400,4ptp4l0-21swapper/023:10:240
2847191400,4ptp4l0-21swapper/022:45:050
2847191400,4ptp4l0-21swapper/022:45:050
2847191400,4ptp4l0-21swapper/022:12:030
2847191400,4ptp4l0-21swapper/021:55:150
2847191400,4ptp4l0-21swapper/021:11:220
2847191400,4ptp4l0-21swapper/021:00:390
2847191400,4ptp4l0-21swapper/020:55:330
2847191400,4ptp4l0-21swapper/020:45:390
2847191400,4ptp4l0-21swapper/020:35:280
2847191400,4ptp4l0-21swapper/020:29:340
2847191400,4ptp4l0-21swapper/019:18:530
2847191400,4ptp4l0-21swapper/000:35:240
2847191400,4ptp4l0-21swapper/000:23:220
2847191400,4ptp4l0-21swapper/000:23:220
2847191400,4ptp4l0-21swapper/000:15:350
2847191400,3ptp4l6233-21diskstats23:20:191
2847191400,3ptp4l24510-21grep19:20:300
2847191400,3ptp4l0-21swapper/123:25:151
2847191390,4ptp4l2338-21/usr/sbin/munin22:00:301
2847191390,4ptp4l0-21swapper/323:45:223
2847191390,4ptp4l0-21swapper/323:45:223
2847191390,4ptp4l0-21swapper/323:11:483
2847191390,4ptp4l0-21swapper/322:46:333
2847191390,4ptp4l0-21swapper/322:46:333
2847191390,4ptp4l0-21swapper/322:36:053
2847191390,4ptp4l0-21swapper/322:11:423
2847191390,4ptp4l0-21swapper/321:45:233
2847191390,4ptp4l0-21swapper/321:41:513
2847191390,4ptp4l0-21swapper/321:40:003
2847191390,4ptp4l0-21swapper/321:01:363
2847191390,4ptp4l0-21swapper/320:45:243
2847191390,4ptp4l0-21swapper/320:20:333
2847191390,4ptp4l0-21swapper/320:12:153
2847191390,4ptp4l0-21swapper/320:02:183
2847191390,4ptp4l0-21swapper/319:28:273
2847191390,4ptp4l0-21swapper/300:39:073
2847191390,4ptp4l0-21swapper/300:26:033
2847191390,4ptp4l0-21swapper/300:10:263
2847191390,4ptp4l0-21swapper/120:33:191
2847191390,4ptp4l0-21swapper/119:55:191
2847191390,4ptp4l0-21swapper/023:25:260
2847191390,4ptp4l0-21swapper/022:35:110
2847191390,4ptp4l0-21swapper/000:32:410
2847191390,3ptp4l0-21swapper/323:40:263
2847191390,3ptp4l0-21swapper/000:00:170
2847191390,2ptp4l27122-21df_inode00:05:180
2847191380,5ptp4l0-21swapper/023:40:270
2847191380,4ptp4l0-21swapper/323:30:303
2847191380,4ptp4l0-21swapper/323:05:093
2847191380,4ptp4l0-21swapper/321:51:533
2847191380,4ptp4l0-21swapper/321:16:093
2847191380,4ptp4l0-21swapper/321:08:103
2847191380,4ptp4l0-21swapper/300:31:573
2847191380,4ptp4l0-21swapper/123:35:251
2847191380,3ptp4l23288-21df19:20:191
2847191380,3ptp4l0-21swapper/322:31:143
2847191380,3ptp4l0-21swapper/321:57:253
2847191380,3ptp4l0-21swapper/319:45:173
2847191380,3ptp4l0-21swapper/120:45:171
2847191380,3ptp4l0-21swapper/119:15:311
2847191380,3ptp4l0-21swapper/100:05:251
2847191370,4ptp4l0-21swapper/321:10:023
2847191370,3ptp4l0-21swapper/323:58:433
2847191370,3ptp4l0-21swapper/321:26:523
2847191370,3ptp4l0-21swapper/123:30:261
2847191330,3ptp4l0-21swapper/300:02:383
18183992620,4cyclictest41-21ksoftirqd/300:20:363
18183992620,4cyclictest41-21ksoftirqd/300:20:363
2847191250,4ptp4l0-21swapper/300:06:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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