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2025-12-08 - 22:24
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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 Dec 08, 2025 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
744621350,6sleep11015299cyclictest11:40:181
2847191680,3ptp4l0-21swapper/212:12:162
2847191680,19ptp4l0-21swapper/212:30:242
1015299680,28cyclictest19005-21chrt07:27:411
1015299640,27cyclictest30195-21taskset12:29:481
1015299631,58cyclictest17475-21memory12:00:231
1015299631,23cyclictest11247-21sed08:20:191
1015299630,59cyclictest11712-21egrep11:50:141
1015299630,28cyclictest13365-21taskset10:44:571
1015299621,58cyclictest6374-21df_inode09:20:151
1015299620,21cyclictest14020-21phc2sys08:25:211
2847191610,5ptp4l0-21swapper/308:05:213
1015299610,21cyclictest2847191ptp4l12:08:411
1015299600,21cyclictest3562-21phc2sys11:30:271
2847191590,5ptp4l0-21swapper/209:38:102
2847191590,4ptp4l0-21swapper/309:15:583
1015299590,55cyclictest26707-21apt-get10:05:011
1015299590,28cyclictest28161-21taskset07:45:311
1015299590,27cyclictest3124-21chrt08:02:181
2847191580,4ptp4l0-21swapper/208:53:442
2847191580,4ptp4l0-21swapper/110:04:551
2847191580,4ptp4l0-21swapper/007:20:150
2847191580,3ptp4l0-21swapper/311:51:243
2847191580,3ptp4l0-21swapper/109:25:271
1015299582,52cyclictest0-21swapper/111:25:361
1015299580,24cyclictest2847191ptp4l10:55:141
2847191570,4ptp4l0-21swapper/212:26:352
2847191570,3ptp4l0-21swapper/207:25:242
2847191570,3ptp4l0-21swapper/108:18:541
2847191570,3ptp4l0-21swapper/107:19:281
2847191570,3ptp4l0-21swapper/012:05:210
2847191560,7ptp4l0-21swapper/208:56:032
2847191560,4ptp4l0-21swapper/309:13:273
2847191560,4ptp4l0-21swapper/307:39:293
2847191560,4ptp4l0-21swapper/209:27:022
2847191560,4ptp4l0-21swapper/208:33:032
2847191560,3ptp4l0-21swapper/211:02:412
1015299562,21cyclictest0-21swapper/112:30:241
1015299560,28cyclictest2638-21chrt12:39:151
1015299560,26cyclictest17453-21chrt08:35:041
2847191550,4ptp4l0-21swapper/309:27:473
2847191550,4ptp4l0-21swapper/211:40:332
2847191550,3ptp4l0-21swapper/208:10:552
263332550,4sleep00-21swapper/007:45:010
1015299552,22cyclictest0-21swapper/109:41:241
1015299550,26cyclictest23928-21chrt08:46:081
2847191540,4ptp4l0-21swapper/308:15:373
2847191540,4ptp4l0-21swapper/308:13:313
2847191540,4ptp4l0-21swapper/207:34:382
2847191540,3ptp4l0-21swapper/009:58:360
1015299540,28cyclictest30490-21seq07:50:411
2847191530,4ptp4l0-21swapper/309:51:283
2847191530,4ptp4l0-21swapper/210:58:462
2847191530,4ptp4l0-21swapper/210:41:012
2847191530,4ptp4l0-21swapper/209:18:292
2847191530,3ptp4l10688-21apt-get09:30:133
2847191530,3ptp4l0-21swapper/009:20:200
2847191530,3ptp4l0-21swapper/008:20:000
1015299532,23cyclictest0-21swapper/109:37:451
2847191520,4ptp4l0-21swapper/309:48:593
2847191520,4ptp4l0-21swapper/209:41:432
2847191520,4ptp4l0-21swapper/209:03:492
2847191520,3ptp4l1015199cyclictest08:12:140
2847191520,2ptp4l0-21swapper/008:45:030
2847191520,12ptp4l0-21swapper/211:05:182
2847191520,10ptp4l8984-21/usr/sbin/munin07:05:230
2847191520,10ptp4l0-21swapper/207:43:062
10154995216,3cyclictest41-21ksoftirqd/311:25:523
1015299522,22cyclictest0-21swapper/111:06:151
1015299521,31cyclictest25402-21seq12:17:561
1015299520,28cyclictest17779-21taskset10:52:181
1015299520,28cyclictest17779-21taskset10:52:181
1015299520,27cyclictest22682-21taskset11:04:571
2847191510,4ptp4l0-21swapper/311:22:393
2847191510,4ptp4l0-21swapper/310:21:213
2847191510,4ptp4l0-21swapper/310:21:213
2847191510,4ptp4l0-21swapper/208:43:152
2847191510,3ptp4l0-21swapper/210:13:512
180132510,5sleep20-21swapper/212:00:282
1015299512,24cyclictest0-21swapper/112:10:371
1015299512,24cyclictest0-21swapper/108:54:351
1015299510,28cyclictest1351-21taskset10:18:531
2847191500,4ptp4l0-21swapper/210:17:272
2847191500,12ptp4l0-21swapper/207:18:412
2847191500,10ptp4l0-21swapper/211:30:072
1015299500,25cyclictest10471-21taskset10:35:591
2847191490,3ptp4l0-21swapper/211:19:422
10154994916,3cyclictest41-21ksoftirqd/311:20:003
1015299495,26cyclictest12084-21seq07:13:031
1015299490,27cyclictest15148-21runrttasks08:30:101
1015299490,25cyclictest25904-21seq07:41:111
1015299490,19cyclictest2847191ptp4l09:05:141
41798480,4rtkit-daemon0-21swapper/312:16:273
2847191480,3ptp4l0-21swapper/109:10:331
2847191480,3ptp4l0-21swapper/009:54:010
2847191480,2ptp4l0-21swapper/007:49:120
1015499482,8cyclictest0-21swapper/312:10:363
10154994818,4cyclictest41-21ksoftirqd/308:41:393
1015299482,23cyclictest0-21swapper/110:24:301
1015299482,23cyclictest0-21swapper/110:24:301
1015299480,26cyclictest21483-21chrt07:34:071
1015299480,25cyclictest16663-21seq07:22:141
2847191470,4ptp4l0-21swapper/310:02:493
2847191470,4ptp4l0-21swapper/309:00:273
2847191470,3ptp4l0-21swapper/307:44:173
2847191470,13ptp4l0-21swapper/008:05:300
10154994719,4cyclictest41-21ksoftirqd/311:57:533
10154994718,4cyclictest41-21ksoftirqd/309:55:233
1015299472,43cyclictest0-21swapper/109:55:181
2847191460,5ptp4l8772-21meminfo07:05:201
2847191460,10ptp4l0-21swapper/011:54:480
10154994615,3cyclictest41-21ksoftirqd/307:30:013
1015299460,24cyclictest27623-21seq12:21:291
1015299460,21cyclictest11077-21runrttasks11:45:511
2847191450,9ptp4l0-21swapper/211:49:402
2847191450,6ptp4l0-21swapper/311:35:273
2847191450,4ptp4l0-21swapper/309:39:563
1015499459,10cyclictest41-21ksoftirqd/307:49:073
10154994519,3cyclictest41-21ksoftirqd/308:55:213
10154994518,4cyclictest41-21ksoftirqd/311:50:003
10154994517,4cyclictest41-21ksoftirqd/311:42:313
10154994517,3cyclictest41-21ksoftirqd/310:55:223
10154994516,4cyclictest41-21ksoftirqd/310:30:233
10154994516,4cyclictest41-21ksoftirqd/310:25:593
10154994515,3cyclictest41-21ksoftirqd/308:25:383
10154994513,6cyclictest41-21ksoftirqd/312:08:373
1015299450,25cyclictest5491-21seq08:08:021
1015299450,25cyclictest15501-21taskset10:47:441
2847191440,9ptp4l0-21swapper/209:21:462
2847191440,5ptp4l8950-21iostat_ios09:25:200
2847191440,4ptp4l18245-21apt-get10:55:130
2847191440,4ptp4l0-21swapper/207:51:322
2847191440,3ptp4l28768-21apt-get07:50:140
2847191440,3ptp4l23505-21apt-get12:15:132
10154994418,8cyclictest41-21ksoftirqd/308:01:293
10154994416,4cyclictest41-21ksoftirqd/311:32:523
10154994412,7cyclictest41-21ksoftirqd/307:13:293
1015299441,29cyclictest32017-21seq11:23:001
2847191430,9ptp4l0-21swapper/210:49:062
2847191430,6ptp4l0-21swapper/208:23:252
2847191430,5ptp4l0-21swapper/209:45:132
2847191430,5ptp4l0-21swapper/008:00:160
2847191430,4ptp4l8720-21apt-get10:35:140
2847191430,4ptp4l22131-21diskstats07:35:160
2847191430,4ptp4l20765-21meminfo08:40:190
2847191430,4ptp4l20582-21ntp_states07:30:243
2847191430,4ptp4l17919-21hddtemp_smartct08:35:150
2847191430,4ptp4l0-21swapper/212:09:472
2847191430,4ptp4l0-21swapper/210:05:112
2847191430,4ptp4l0-21swapper/209:10:182
2847191430,3ptp4l8211-21apt-get08:15:122
2847191430,3ptp4l31493-21ls12:30:220
2847191430,3ptp4l16679-21ls08:30:303
2847191430,3ptp4l0-21swapper/210:25:312
10154994314,4cyclictest41-21ksoftirqd/308:45:243
10154994314,3cyclictest41-21ksoftirqd/311:12:523
1015299430,29cyclictest8182-21chrt10:31:211
1015299430,29cyclictest31154-21chrt09:04:331
1015299430,28cyclictest31055-21chrt07:55:041
2847191420,6ptp4l31938-21if_enp1s009:05:170
2847191420,5ptp4l16553-21ps09:40:260
2847191420,5ptp4l0-21swapper/312:01:133
2847191420,5ptp4l0-21swapper/211:55:162
2847191420,5ptp4l0-21swapper/208:05:142
2847191420,5ptp4l0-21swapper/011:06:030
2847191420,5ptp4l0-21swapper/008:30:160
2847191420,5ptp4l0-21swapper/008:25:190
2847191420,4ptp4l32307-21ps07:55:263
2847191420,4ptp4l30098-21memory09:00:230
2847191420,4ptp4l15329-21apt-get09:40:133
2847191420,4ptp4l0-21swapper/210:54:472
2847191420,4ptp4l0-21swapper/210:54:462
2847191420,4ptp4l0-21swapper/209:09:152
2847191420,4ptp4l0-21swapper/207:57:312
2847191420,4ptp4l0-21swapper/011:10:190
2847191420,3ptp4l25469-21apt-get11:10:131
2847191420,3ptp4l22067-21ls11:00:300
2847191420,3ptp4l10549-21apt-get08:20:130
2847191420,3ptp4l0-21swapper/011:16:330
2847191420,2ptp4l121rcu_preempt07:20:013
10154994226,6cyclictest41-21ksoftirqd/312:25:273
10154994218,3cyclictest41-21ksoftirqd/312:32:423
10154994216,3cyclictest41-21ksoftirqd/308:37:223
10154994214,4cyclictest41-21ksoftirqd/309:08:373
1015499421,2cyclictest121rcu_preempt10:43:523
1015299421,27cyclictest23789-21chrt07:39:001
1015299420,28cyclictest31467-21chrt10:14:051
1015299420,27cyclictest15945-21chrt11:59:001
1015299420,24cyclictest12650-21taskset09:33:511
2847191410,6ptp4l9-21ksoftirqd/011:36:340
2847191410,5ptp4l24859-21df_abs10:00:152
2847191410,5ptp4l0-21swapper/307:15:143
2847191410,5ptp4l0-21swapper/009:10:200
2847191410,4ptp4l30429-21df_inode11:20:152
2847191410,4ptp4l28461-21df_inode12:25:140
2847191410,4ptp4l28027-21irqstats10:05:210
2847191410,4ptp4l22946-21ntp_states07:35:232
2847191410,4ptp4l20991-21ntp_states08:40:231
2847191410,4ptp4l16146-21df10:50:160
2847191410,4ptp4l16146-21df10:50:150
2847191410,4ptp4l10718-21if_enp4s007:10:170
2847191410,4ptp4l0-21swapper/308:50:303
2847191410,4ptp4l0-21swapper/209:51:182
2847191410,4ptp4l0-21swapper/208:36:202
2847191410,4ptp4l0-21swapper/012:35:200
2847191410,4ptp4l0-21swapper/012:17:530
2847191410,4ptp4l0-21swapper/011:59:550
2847191410,4ptp4l0-21swapper/010:40:330
2847191410,4ptp4l0-21swapper/010:21:080
2847191410,4ptp4l0-21swapper/010:21:080
2847191410,4ptp4l0-21swapper/009:37:140
2847191410,4ptp4l0-21swapper/009:30:160
2847191410,4ptp4l0-21swapper/007:32:570
2847191410,4ptp4l0-21swapper/007:29:160
2847191410,4ptp4l0-21swapper/007:15:000
2847191410,3ptp4l552-21apt-get12:35:132
2847191410,3ptp4l32215-21ntp_states07:55:260
2847191410,3ptp4l31241-21ntp_states11:20:230
2847191410,3ptp4l28229-21ls08:55:281
2847191410,3ptp4l22631-21diskstats09:55:152
2847191410,3ptp4l0-21swapper/012:03:360
10154994135,3cyclictest41-21ksoftirqd/310:50:003
10154994114,8cyclictest41-21ksoftirqd/311:05:263
10154994112,4cyclictest41-21ksoftirqd/309:21:563
10154994112,3cyclictest41-21ksoftirqd/307:54:573
1015299410,26cyclictest7640-21chrt08:10:561
2847191400,5ptp4l0-21swapper/312:20:173
2847191400,4ptp4l0-21swapper/312:35:253
2847191400,4ptp4l0-21swapper/311:00:233
2847191400,4ptp4l0-21swapper/310:35:173
2847191400,4ptp4l0-21swapper/310:10:173
2847191400,4ptp4l0-21swapper/310:08:303
2847191400,4ptp4l0-21swapper/308:20:193
2847191400,4ptp4l0-21swapper/212:21:192
2847191400,4ptp4l0-21swapper/211:35:222
2847191400,4ptp4l0-21swapper/211:25:362
2847191400,4ptp4l0-21swapper/210:36:442
2847191400,4ptp4l0-21swapper/210:30:092
2847191400,4ptp4l0-21swapper/210:23:362
2847191400,4ptp4l0-21swapper/210:23:362
2847191400,4ptp4l0-21swapper/209:30:222
2847191400,4ptp4l0-21swapper/208:49:232
2847191400,4ptp4l0-21swapper/208:29:312
2847191400,4ptp4l0-21swapper/207:21:232
2847191400,4ptp4l0-21swapper/111:15:131
2847191400,4ptp4l0-21swapper/109:15:291
2847191400,4ptp4l0-21swapper/011:40:160
2847191400,4ptp4l0-21swapper/011:30:150
2847191400,4ptp4l0-21swapper/010:45:220
2847191400,4ptp4l0-21swapper/010:27:020
2847191400,4ptp4l0-21swapper/010:16:440
2847191400,4ptp4l0-21swapper/010:13:550
2847191400,4ptp4l0-21swapper/010:00:330
2847191400,4ptp4l0-21swapper/009:48:510
2847191400,4ptp4l0-21swapper/009:17:050
2847191400,3ptp4l27907-21ntpq08:55:230
2847191400,3ptp4l25843-21apt-get12:20:160
2847191400,3ptp4l25680-21df11:10:142
2847191400,3ptp4l25043-21if_err_enp4s008:50:190
2847191400,3ptp4l1536-21diskstats08:00:152
2847191400,3ptp4l0-21swapper/012:12:030
2847191400,3ptp4l0-21swapper/011:47:560
10151994013,24cyclictest2117-21seq11:29:460
2847191390,4ptp4l0-21swapper/310:51:563
2847191390,4ptp4l0-21swapper/310:51:563
2847191390,4ptp4l0-21swapper/310:17:373
2847191390,4ptp4l0-21swapper/211:50:202
2847191390,4ptp4l0-21swapper/207:45:112
2847191390,4ptp4l0-21swapper/207:10:092
2847191390,4ptp4l0-21swapper/110:26:521
2847191390,4ptp4l0-21swapper/109:50:211
2847191390,4ptp4l0-21swapper/109:45:251
2847191390,4ptp4l0-21swapper/010:34:180
2847191390,3ptp4l0-21swapper/111:37:131
41798280,11rtkit-daemon0-21swapper/307:05:203
81252195,8sleep20-21swapper/207:05:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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