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2025-11-25 - 22:52
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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 Tue Nov 25, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1969421390,5sleep12273099cyclictest08:10:191
2847191780,4ptp4l0-21swapper/012:39:260
2847191710,4ptp4l0-21swapper/111:27:491
2847191690,4ptp4l0-21swapper/010:13:530
2273299679,54cyclictest5406-21ps07:40:203
2847191660,3ptp4l6473-21diskstats10:00:160
2847191650,4ptp4l0-21swapper/109:50:201
2847191640,5ptp4l0-21swapper/011:25:180
2273299638,17cyclictest26516-21gpgv08:25:023
2273299638,17cyclictest26516-21gpgv08:25:023
2847191610,3ptp4l0-21swapper/009:15:210
2273299614,54cyclictest0-21swapper/307:25:243
257462600,4sleep30-21swapper/311:50:163
2847191590,3ptp4l30937-21sensors10:50:250
2847191590,3ptp4l30937-21sensors10:50:250
2847191590,3ptp4l0-21swapper/009:12:270
236652590,3sleep3391rcuc/310:35:223
2273299597,48cyclictest0-21swapper/309:55:183
2847191580,3ptp4l9050-21iostat_ios10:05:190
2847191580,3ptp4l10600-21memory07:50:190
2847191570,4ptp4l0-21swapper/208:26:182
2847191570,4ptp4l0-21swapper/208:26:182
2847191570,4ptp4l0-21swapper/111:39:281
2847191570,4ptp4l0-21swapper/012:20:140
2847191570,4ptp4l0-21swapper/010:15:150
2847191570,3ptp4l0-21swapper/208:53:522
2847191570,3ptp4l0-21swapper/108:23:281
2847191560,4ptp4l1839-21/usr/sbin/munin11:00:272
2847191560,4ptp4l0-21swapper/110:07:451
2847191560,4ptp4l0-21swapper/010:58:190
2847191560,4ptp4l0-21swapper/008:35:180
2847191560,4ptp4l0-21swapper/007:30:390
2847191560,3ptp4l32512-21meminfo09:45:210
2273299567,11cyclictest32377-21sed09:45:203
2847191550,4ptp4l0-21swapper/211:06:142
2847191550,4ptp4l0-21swapper/111:42:001
2847191550,4ptp4l0-21swapper/111:15:081
2847191550,4ptp4l0-21swapper/107:40:181
2847191550,3ptp4l0-21swapper/107:05:141
2847191550,3ptp4l0-21swapper/011:43:200
2273299558,45cyclictest0-21swapper/308:10:163
2847191540,4ptp4l0-21swapper/112:06:031
2847191540,3ptp4l0-21swapper/209:56:302
2847191540,3ptp4l0-21swapper/110:23:421
2847191540,3ptp4l0-21swapper/009:59:560
2847191540,3ptp4l0-21swapper/007:29:530
2273299549,10cyclictest20319-21sort09:20:163
2273299549,10cyclictest20319-21sort09:20:163
2273299546,14cyclictest0-21swapper/311:11:123
2847191530,4ptp4l0-21swapper/112:10:021
2847191530,4ptp4l0-21swapper/112:01:401
2847191530,4ptp4l0-21swapper/011:22:430
2847191530,3ptp4l0-21swapper/107:55:581
2847191530,3ptp4l0-21swapper/107:55:581
2847191530,3ptp4l0-21swapper/008:22:330
2847191520,4ptp4l0-21swapper/210:35:152
2847191520,4ptp4l0-21swapper/210:33:142
2847191520,4ptp4l0-21swapper/110:53:051
2847191520,4ptp4l0-21swapper/110:53:051
2847191520,4ptp4l0-21swapper/012:25:380
2847191520,4ptp4l0-21swapper/012:03:350
2847191520,4ptp4l0-21swapper/011:35:280
2847191520,4ptp4l0-21swapper/008:49:340
2847191520,4ptp4l0-21swapper/008:13:550
2847191510,4ptp4l0-21swapper/211:57:132
2847191510,4ptp4l0-21swapper/210:42:472
2847191510,4ptp4l0-21swapper/110:14:311
2847191510,4ptp4l0-21swapper/107:37:151
2847191510,4ptp4l0-21swapper/008:57:170
2847191510,4ptp4l0-21swapper/008:31:390
2847191510,3ptp4l13742-21ls07:55:280
2847191510,3ptp4l13742-21ls07:55:280
2847191510,3ptp4l0-21swapper/207:23:162
2847191510,3ptp4l0-21swapper/207:23:162
2847191510,3ptp4l0-21swapper/109:14:581
2847191510,3ptp4l0-21swapper/007:20:270
2847191510,3ptp4l0-21swapper/007:20:270
2847191510,2ptp4l0-21swapper/011:16:120
2273299518,8cyclictest24592-21apt-get09:30:123
2273299516,6cyclictest0-21swapper/308:53:243
2273299515,19cyclictest10639-21ssh12:25:433
2847191500,5ptp4l0-21swapper/207:09:302
2847191500,4ptp4l0-21swapper/307:58:413
2847191500,4ptp4l0-21swapper/307:58:413
2847191500,4ptp4l0-21swapper/207:16:372
2847191500,4ptp4l0-21swapper/011:32:540
2847191500,4ptp4l0-21swapper/011:03:340
2847191500,4ptp4l0-21swapper/010:47:500
2847191500,4ptp4l0-21swapper/008:04:400
2847191500,3ptp4l0-21swapper/009:39:060
2847191500,3ptp4l0-21swapper/008:53:300
2847191500,3ptp4l0-21swapper/008:40:180
2847191500,10ptp4l0-21swapper/211:50:432
2273299502,16cyclictest0-21swapper/308:30:293
2847191490,4ptp4l0-21swapper/111:51:101
2847191490,3ptp4l0-21swapper/112:15:061
2847191490,3ptp4l0-21swapper/010:32:350
2847191490,3ptp4l0-21swapper/009:05:590
2847191480,4ptp4l0-21swapper/109:08:331
2847191480,4ptp4l0-21swapper/009:27:460
2847191480,15ptp4l14722-21gzip11:25:262
2847191480,15ptp4l0-21swapper/211:24:362
2273299487,11cyclictest0-21swapper/307:47:493
2273299484,42cyclictest0-21swapper/311:20:213
2273299484,10cyclictest0-21swapper/312:35:143
22732994813,32cyclictest17284-21taskset09:14:403
2847191470,5ptp4l0-21swapper/007:05:550
2847191470,4ptp4l0-21swapper/009:01:060
2273299475,6cyclictest2849691phc2sys08:55:283
2847191460,4ptp4l0-21swapper/208:08:452
2847191460,4ptp4l0-21swapper/108:48:091
2847191460,3ptp4l0-21swapper/107:24:321
2847191460,3ptp4l0-21swapper/107:24:321
2847191460,3ptp4l0-21swapper/009:30:450
2273299466,6cyclictest2847191ptp4l07:15:233
22732994613,30cyclictest32291-21/usr/sbin/munin07:30:193
2847191450,4ptp4l23345-21iostat_ios07:10:201
2847191450,4ptp4l0-21swapper/109:39:291
2847191450,3ptp4l0-21swapper/110:57:211
2847191450,10ptp4l0-21swapper/107:27:531
2847191440,8ptp4l13017-21sed12:30:280
2847191440,4ptp4l0-21swapper/209:16:052
2847191440,10ptp4l0-21swapper/008:06:410
2273299448,13cyclictest0-21swapper/308:00:273
2273299447,7cyclictest16738-21mailstats10:20:253
2273299446,7cyclictest18277-21apt-get11:35:123
2849491430,10getstats0-21swapper/312:15:223
2847191430,9ptp4l0-21swapper/212:36:352
2847191430,9ptp4l0-21swapper/211:35:092
2847191430,9ptp4l0-21swapper/211:31:092
2847191430,9ptp4l0-21swapper/209:07:332
2847191430,5ptp4l0-21swapper/011:50:140
2847191430,4ptp4l6495-21apt-get11:10:120
2847191430,4ptp4l21007-21memory10:30:223
2847191430,4ptp4l1778-21gnome-shell07:32:591
2847191430,4ptp4l0-21swapper/307:09:443
2847191430,4ptp4l0-21swapper/212:18:502
2847191430,4ptp4l0-21swapper/109:59:151
2847191430,4ptp4l0-21swapper/107:52:591
2847191430,4ptp4l0-21swapper/007:45:110
2847191430,4ptp4l0-21swapper/007:10:030
2847191430,3ptp4l22571-21apt-get10:35:121
2847191430,3ptp4l0-21swapper/209:51:422
2847191430,3ptp4l0-21swapper/011:05:240
2273299438,8cyclictest2422-21if_err_enp1s011:00:183
2273299437,6cyclictest2849491getstats12:20:223
2273299436,7cyclictest32479-21/usr/sbin/munin10:55:193
2273299433,12cyclictest23348-21ps07:10:203
2849491420,10getstats0-21swapper/312:03:393
2847191420,5ptp4l0-21swapper/310:10:203
2847191420,5ptp4l0-21swapper/210:15:132
2847191420,5ptp4l0-21swapper/109:20:271
2847191420,5ptp4l0-21swapper/109:20:271
2847191420,5ptp4l0-21swapper/108:55:281
2847191420,5ptp4l0-21swapper/012:10:130
2847191420,4ptp4l21195-21apt-get08:15:010
2847191420,4ptp4l14600-21ls10:15:293
2847191420,4ptp4l0-21swapper/208:16:152
2847191420,4ptp4l0-21swapper/112:20:161
2847191420,2ptp4l0-21swapper/108:41:521
2847191420,1ptp4l0-21swapper/010:20:170
2273299427,5cyclictest0-21swapper/312:10:233
2273299427,32cyclictest26891-21/usr/sbin/munin09:35:153
2847191410,9ptp4l0-21swapper/212:14:422
2847191410,7ptp4l0-21swapper/009:40:210
2847191410,6ptp4l0-21swapper/210:24:072
2847191410,5ptp4l24657-21sed11:45:402
2847191410,5ptp4l0-21swapper/209:35:132
2847191410,4ptp4l6621-21cut10:00:173
2847191410,4ptp4l31980-21iostat_ios08:35:201
2847191410,4ptp4l30444-21/usr/sbin/munin08:30:281
2847191410,4ptp4l24086-21ntp_states11:45:351
2847191410,4ptp4l10133-21memory12:25:221
2847191410,4ptp4l0-21swapper/308:19:143
2847191410,4ptp4l0-21swapper/212:33:572
2847191410,4ptp4l0-21swapper/212:02:162
2847191410,4ptp4l0-21swapper/210:00:242
2847191410,4ptp4l0-21swapper/208:13:282
2847191410,4ptp4l0-21swapper/110:30:151
2847191410,4ptp4l0-21swapper/110:17:341
2847191410,4ptp4l0-21swapper/108:26:381
2847191410,4ptp4l0-21swapper/108:26:381
2847191410,4ptp4l0-21swapper/108:15:241
2847191410,4ptp4l0-21swapper/010:35:070
2847191410,3ptp4l29241-21apt-get09:40:121
2847191410,3ptp4l121rcu_preempt12:15:070
2847191410,2ptp4l2547-21ls09:50:230
2273299414,11cyclictest30709-21ntpq10:50:233
2273299414,11cyclictest30709-21ntpq10:50:233
22732994111,27cyclictest3342-21runrttasks08:43:513
2847191400,5ptp4l0-21swapper/207:10:002
2847191400,4ptp4l0-21swapper/311:16:403
2847191400,4ptp4l0-21swapper/310:45:213
2847191400,4ptp4l0-21swapper/309:25:353
2847191400,4ptp4l0-21swapper/308:47:563
2847191400,4ptp4l0-21swapper/307:50:403
2847191400,4ptp4l0-21swapper/212:25:322
2847191400,4ptp4l0-21swapper/210:54:352
2847191400,4ptp4l0-21swapper/210:54:352
2847191400,4ptp4l0-21swapper/210:28:172
2847191400,4ptp4l0-21swapper/210:10:162
2847191400,4ptp4l0-21swapper/208:58:132
2847191400,4ptp4l0-21swapper/208:47:172
2847191400,4ptp4l0-21swapper/208:36:302
2847191400,4ptp4l0-21swapper/112:31:021
2847191400,4ptp4l0-21swapper/111:15:001
2847191400,4ptp4l0-21swapper/111:08:481
2847191400,4ptp4l0-21swapper/110:45:011
2847191400,4ptp4l0-21swapper/110:01:051
2847191400,4ptp4l0-21swapper/109:25:271
2847191400,4ptp4l0-21swapper/109:17:511
2847191400,4ptp4l0-21swapper/108:01:181
2847191400,4ptp4l0-21swapper/011:55:130
2847191400,4ptp4l0-21swapper/010:41:370
2847191400,4ptp4l0-21swapper/008:25:210
2847191400,4ptp4l0-21swapper/008:25:210
2847191400,3ptp4l8457-21ntp_states07:45:221
2847191400,3ptp4l6493-21users07:40:290
2847191400,3ptp4l28403-21ntp_states10:45:232
2847191400,3ptp4l28048-21hddtemp_smartct11:55:171
2847191400,3ptp4l26597-21sshd09:34:271
2847191400,3ptp4l18042-21df_inode10:25:130
2847191400,3ptp4l11988-21irqstats11:20:201
2847191400,3ptp4l0-21swapper/309:16:473
2847191400,3ptp4l0-21swapper/207:34:582
2847191400,2ptp4l1795-21llvmpipe-207:35:580
2273299406,7cyclictest10048-21ls10:05:283
22730994035,3cyclictest25-21ksoftirqd/107:15:011
2847191390,4ptp4l0-21swapper/312:32:283
2847191390,4ptp4l0-21swapper/312:05:333
2847191390,4ptp4l0-21swapper/311:57:183
2847191390,4ptp4l0-21swapper/311:40:123
2847191390,4ptp4l0-21swapper/310:40:203
2847191390,4ptp4l0-21swapper/309:50:133
2847191390,4ptp4l0-21swapper/309:40:013
2847191390,4ptp4l0-21swapper/309:01:463
2847191390,4ptp4l0-21swapper/308:36:583
2847191390,4ptp4l0-21swapper/308:21:143
2847191390,4ptp4l0-21swapper/308:05:433
2847191390,4ptp4l0-21swapper/212:22:332
2847191390,4ptp4l0-21swapper/211:42:322
2847191390,4ptp4l0-21swapper/211:18:092
2847191390,4ptp4l0-21swapper/211:14:482
2847191390,4ptp4l0-21swapper/210:55:272
2847191390,4ptp4l0-21swapper/210:05:572
2847191390,4ptp4l0-21swapper/209:49:042
2847191390,4ptp4l0-21swapper/209:40:552
2847191390,4ptp4l0-21swapper/209:32:012
2847191390,4ptp4l0-21swapper/209:29:472
2847191390,4ptp4l0-21swapper/209:11:052
2847191390,4ptp4l0-21swapper/209:02:372
2847191390,4ptp4l0-21swapper/208:41:322
2847191390,4ptp4l0-21swapper/208:31:322
2847191390,4ptp4l0-21swapper/208:21:372
2847191390,4ptp4l0-21swapper/208:01:322
2847191390,4ptp4l0-21swapper/207:37:212
2847191390,4ptp4l0-21swapper/110:40:171
2847191390,4ptp4l0-21swapper/110:29:221
2847191390,4ptp4l0-21swapper/109:45:491
2847191390,4ptp4l0-21swapper/109:00:561
2847191390,4ptp4l0-21swapper/108:50:061
2847191390,4ptp4l0-21swapper/108:05:161
2847191390,4ptp4l0-21swapper/012:07:460
2847191390,4ptp4l0-21swapper/011:45:520
2847191390,4ptp4l0-21swapper/009:21:100
2847191390,4ptp4l0-21swapper/009:21:100
2847191390,4ptp4l0-21swapper/007:18:250
2847191390,3ptp4l0-21swapper/311:31:183
2847191390,3ptp4l0-21swapper/207:54:582
2847191390,3ptp4l0-21swapper/112:36:221
2847191380,5ptp4l0-21swapper/207:45:312
2847191380,4ptp4l1939-21cat11:00:141
2847191380,4ptp4l0-21swapper/309:07:253
2847191380,4ptp4l0-21swapper/307:36:343
2847191380,4ptp4l0-21swapper/307:20:433
2847191380,4ptp4l0-21swapper/307:20:433
2847191380,4ptp4l0-21swapper/209:20:062
2847191380,4ptp4l0-21swapper/209:20:062
2847191380,4ptp4l0-21swapper/207:40:532
2847191380,4ptp4l0-21swapper/207:25:192
2847191380,3ptp4l0-21swapper/212:06:002
2847191380,3ptp4l0-21swapper/207:58:392
2847191380,3ptp4l0-21swapper/207:58:392
2847191380,3ptp4l0-21swapper/111:31:201
2847191380,2ptp4l3326-21kworker/u8:110:25:263
22732993810,25cyclictest24063-21taskset11:45:273
2847191370,3ptp4l0-21swapper/311:08:163
2847191350,3ptp4l0-21swapper/311:28:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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