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2026-07-12 - 00:03
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Sat Jul 11, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1502221750,2sleep12823999cyclictest07:44:181
1504521570,6sleep22824099cyclictest07:44:362
1503621470,5sleep32824199cyclictest07:44:293
155312970,1sleep115541-21sh08:05:581
134691940,11getstats12171-21spawn07:57:093
160862820,3sleep20-21swapper/207:34:482
106812820,6sleep10-21swapper/108:02:041
106812820,6sleep10-21swapper/108:02:031
134491760,11ptp4l9-21ksoftirqd/008:02:160
134491760,11ptp4l9-21ksoftirqd/008:02:160
121082710,4sleep012114-21spawn07:57:210
285312700,7sleep22824099cyclictest07:37:332
134491660,30ptp4l41-21ksoftirqd/308:20:183
149072640,3sleep014894-21execl07:43:170
134491630,4ptp4l0-21swapper/308:06:473
312552620,4sleep00-21swapper/007:36:270
134491620,5ptp4l0-21swapper/310:55:253
134491620,4ptp4l0-21swapper/307:33:143
134491620,20ptp4l0-21swapper/107:33:451
134491610,3ptp4l26436-21od07:35:063
134491600,4ptp4l0-21swapper/107:05:201
112612590,3sleep211250-21sort08:02:332
112612590,3sleep211250-21sort08:02:332
64092580,6sleep00-21swapper/009:55:160
134491580,4ptp4l27091-21/usr/sbin/munin10:40:213
134491580,3ptp4l31912-21df10:50:151
134491580,3ptp4l13592-21diskstats10:10:171
134491580,3ptp4l13592-21diskstats10:10:171
134491580,2ptp4l0-21swapper/107:51:541
134491570,4ptp4l15788-21rm07:35:351
134491570,4ptp4l0-21swapper/112:20:171
134491570,4ptp4l0-21swapper/110:46:251
134491570,2ptp4l8559-21sed08:05:003
134491570,2ptp4l8559-21sed08:05:003
324002560,5sleep09-21ksoftirqd/007:16:080
134491560,3ptp4l0-21swapper/211:07:372
134491560,3ptp4l0-21swapper/211:07:372
134491550,3ptp4l6576-21df_inode11:05:161
134491550,3ptp4l6576-21df_inode11:05:161
134491540,4ptp4l0-21swapper/111:00:291
134491540,4ptp4l0-21swapper/109:10:301
134491540,3ptp4l335-21ls12:00:201
134491540,3ptp4l0-21swapper/111:20:121
134491530,4ptp4l26259-21grep11:45:271
134491530,4ptp4l0-21swapper/309:30:193
134491530,4ptp4l0-21swapper/309:01:463
134491530,18ptp4l9-21ksoftirqd/012:00:240
303682520,6sleep09-21ksoftirqd/007:14:480
134491520,5ptp4l0-21swapper/112:07:141
134491520,4ptp4l0-21swapper/312:27:513
134491520,3ptp4l0-21swapper/207:27:032
134491520,3ptp4l0-21swapper/109:59:331
28240995147,2cyclictest0-21swapper/207:10:452
222162510,4sleep00-21swapper/007:33:580
134491510,5ptp4l0-21swapper/212:01:442
134491510,5ptp4l0-21swapper/007:06:400
134491510,3ptp4l7367-21syscall07:58:551
134491510,3ptp4l0-21swapper/112:34:011
134491510,3ptp4l0-21swapper/107:15:391
134491500,8ptp4l27857-21chrt07:08:533
134491500,5ptp4l0-21swapper/207:08:092
134491500,4ptp4l0-21swapper/212:33:202
134491500,4ptp4l0-21swapper/211:23:172
134491500,4ptp4l0-21swapper/209:24:432
134491500,4ptp4l0-21swapper/109:53:031
134491500,4ptp4l0-21swapper/109:28:281
134491500,3ptp4l0-21swapper/108:54:521
134491500,18ptp4l0-21swapper/010:05:510
134491490,4ptp4l0-21swapper/211:49:382
134491490,4ptp4l0-21swapper/110:37:531
134491490,3ptp4l0-21swapper/210:51:262
134491490,2ptp4l11695-21spawn07:29:451
134491480,4ptp4l0-21swapper/211:37:092
134491480,4ptp4l0-21swapper/209:55:502
134491480,4ptp4l0-21swapper/209:41:412
134491480,4ptp4l0-21swapper/209:27:282
134491480,4ptp4l0-21swapper/208:39:152
134491480,4ptp4l0-21swapper/111:15:011
134491480,3ptp4l0-21swapper/111:42:091
134491470,6ptp4l25737-21meminfo10:35:202
134491470,4ptp4l0-21swapper/310:47:393
134491470,4ptp4l0-21swapper/307:50:583
134491470,4ptp4l0-21swapper/210:14:172
134491470,4ptp4l0-21swapper/210:14:172
134491470,4ptp4l0-21swapper/209:48:522
134491470,4ptp4l0-21swapper/209:06:002
134491470,4ptp4l0-21swapper/109:36:011
134491470,4ptp4l0-21swapper/109:36:011
134491470,4ptp4l0-21swapper/108:47:481
134491470,4ptp4l0-21swapper/107:45:181
134491470,3ptp4l0-21swapper/110:02:091
134491470,11ptp4l0-21swapper/208:16:452
134491460,4ptp4l0-21swapper/309:07:583
134491460,4ptp4l0-21swapper/211:57:302
134491460,4ptp4l0-21swapper/110:15:101
134491460,4ptp4l0-21swapper/010:24:030
134491460,2ptp4l17481-21fstime07:49:582
134491460,10ptp4l24660-21sed10:35:013
134491450,5ptp4l0-21swapper/010:50:120
134491450,4ptp4l0-21swapper/012:14:100
134491450,3ptp4l0-21swapper/111:55:201
134491450,2ptp4l15080-21fstime07:45:023
134491450,11ptp4l0-21swapper/207:57:522
134491450,11ptp4l0-21swapper/110:41:261
134491440,5ptp4l2450-21fstime07:21:392
134491440,4ptp4l0-21swapper/110:07:111
134491440,3ptp4l0-21swapper/210:24:252
134491440,3ptp4l0-21swapper/012:15:380
134491430,9ptp4l0-21swapper/310:39:253
134491430,9ptp4l0-21swapper/211:18:232
134491430,8ptp4l0-21swapper/212:17:292
134491430,5ptp4l0-21swapper/309:50:113
134491430,5ptp4l0-21swapper/007:46:220
134491430,4ptp4l32502-21fstime07:17:313
134491430,4ptp4l32502-21fstime07:17:242
134491430,4ptp4l21910-21apt-get08:10:131
134491430,4ptp4l15582-21apt-get10:15:152
134491430,4ptp4l0-21swapper/309:38:483
134491430,4ptp4l0-21swapper/309:38:473
134491430,4ptp4l0-21swapper/207:50:542
134491430,3ptp4l0-21swapper/208:33:532
134491430,3ptp4l0-21swapper/011:25:540
134491430,15ptp4l19556-21fstime07:51:520
46198420,10rtkit-daemon0-21swapper/311:30:383
134691420,10getstats0-21swapper/309:24:333
134491420,5ptp4l9-21ksoftirqd/008:06:280
134491420,5ptp4l0-21swapper/307:20:493
134491420,4ptp4l25498-21ntp_states09:25:240
134491420,4ptp4l22927-21irqstats09:20:180
134491420,4ptp4l2228-21sh08:06:252
134491420,4ptp4l11517-21hddtemp_smartct12:25:171
134491420,4ptp4l11399-21irqstats08:55:200
134491420,12ptp4l9-21ksoftirqd/008:40:360
134491420,10ptp4l0-21swapper/108:58:131
28241994136,3cyclictest41-21ksoftirqd/311:59:593
134691410,10getstats0-21swapper/308:45:083
134491410,9ptp4l0-21swapper/211:31:222
134491410,5ptp4l2824199cyclictest10:50:163
134491410,4ptp4l32503-21meminfo09:40:211
134491410,4ptp4l2823999cyclictest07:24:531
134491410,4ptp4l19135-21users09:10:290
134491410,4ptp4l15477-21diskstats09:05:140
134491410,4ptp4l14729-21python12:30:260
134491410,4ptp4l1445-21apt-get09:45:131
134491410,4ptp4l13759-21diskstats11:20:150
134491410,4ptp4l0-21swapper/011:52:210
134491410,3ptp4l3660-21iostat_ios07:25:170
134491410,3ptp4l27370-21irqstats08:20:191
134491410,3ptp4l2643-21ls08:35:273
134491410,3ptp4l1764-21apt-get12:05:140
134491400,5ptp4l0-21swapper/312:10:133
134491400,5ptp4l0-21swapper/311:35:133
134491400,5ptp4l0-21swapper/309:45:193
134491400,5ptp4l0-21swapper/208:10:232
134491400,5ptp4l0-21swapper/010:15:160
134491400,4ptp4l9302-21iostat_ios12:20:180
134491400,4ptp4l9-21ksoftirqd/009:40:170
134491400,4ptp4l7222-21memory11:05:220
134491400,4ptp4l7222-21memory11:05:220
134491400,4ptp4l6714-21df_inode12:15:151
134491400,4ptp4l32722-21fstime07:20:030
134491400,4ptp4l27244-21apt-get11:50:131
134491400,4ptp4l27105-21apt-get10:40:122
134491400,4ptp4l0-21swapper/310:10:293
134491400,4ptp4l0-21swapper/310:10:293
134491400,4ptp4l0-21swapper/307:27:573
134491400,4ptp4l0-21swapper/210:55:132
134491400,4ptp4l0-21swapper/108:30:181
134491400,4ptp4l0-21swapper/012:35:220
134491400,4ptp4l0-21swapper/011:10:120
134491400,4ptp4l0-21swapper/010:25:220
134491400,4ptp4l0-21swapper/009:30:240
134491400,4ptp4l0-21swapper/008:20:160
134491400,3ptp4l4370-21iostat09:50:190
134491400,3ptp4l30910-21ls10:45:272
134491400,3ptp4l28979-21apt-get09:35:122
134491400,3ptp4l28979-21apt-get09:35:122
134491400,3ptp4l27531-21hddtemp_smartct10:40:160
134491400,3ptp4l26675-21apt-get09:30:132
134491400,3ptp4l23995-21ls10:30:291
134491400,3ptp4l22964-21diskstats11:40:170
134491400,3ptp4l21264-21ls09:15:281
134491400,3ptp4l15166-21apt-get09:05:121
134491390,5ptp4l0-21swapper/311:14:283
134491390,5ptp4l0-21swapper/210:27:492
134491390,4ptp4l6233-21cat11:05:013
134491390,4ptp4l30363-21execl07:14:463
134491390,4ptp4l25879-21grep10:35:220
134491390,4ptp4l16700-21meminfo11:25:201
134491390,4ptp4l0-21swapper/312:30:133
134491390,4ptp4l0-21swapper/310:25:133
134491390,4ptp4l0-21swapper/308:55:173
134491390,4ptp4l0-21swapper/308:15:113
134491390,4ptp4l0-21swapper/212:36:002
134491390,4ptp4l0-21swapper/212:27:502
134491390,4ptp4l0-21swapper/212:13:542
134491390,4ptp4l0-21swapper/211:51:512
134491390,4ptp4l0-21swapper/211:11:452
134491390,4ptp4l0-21swapper/210:30:322
134491390,4ptp4l0-21swapper/209:00:132
134491390,4ptp4l0-21swapper/208:52:562
134491390,4ptp4l0-21swapper/208:45:222
134491390,4ptp4l0-21swapper/208:43:562
134491390,4ptp4l0-21swapper/208:25:172
134491390,4ptp4l0-21swapper/112:11:291
134491390,4ptp4l0-21swapper/110:55:191
134491390,4ptp4l0-21swapper/110:25:241
134491390,4ptp4l0-21swapper/109:31:301
134491390,4ptp4l0-21swapper/108:27:101
134491390,4ptp4l0-21swapper/108:15:261
134491390,4ptp4l0-21swapper/011:55:370
134491390,4ptp4l0-21swapper/011:15:170
134491390,4ptp4l0-21swapper/010:55:170
134491390,4ptp4l0-21swapper/010:47:350
134491390,4ptp4l0-21swapper/010:00:370
134491390,4ptp4l0-21swapper/009:38:220
134491390,4ptp4l0-21swapper/009:38:220
134491390,4ptp4l0-21swapper/009:00:230
134491390,4ptp4l0-21swapper/008:38:300
134491390,4ptp4l0-21swapper/008:33:210
134491390,4ptp4l0-21swapper/008:18:480
134491390,3ptp4l9686-21ssh08:50:260
134491390,3ptp4l8564-21apt-get11:10:121
134491390,3ptp4l29131-21df_inode08:25:140
134491390,3ptp4l21288-21meminfo11:35:211
134491390,3ptp4l19168-21ntp_states11:30:241
134491390,3ptp4l16532-21meminfo10:15:223
134491390,3ptp4l11084-21apt-get12:25:120
134491390,3ptp4l0-21swapper/209:16:542
134491390,3ptp4l0-21swapper/011:33:010
134491380,4ptp4l0-21swapper/312:20:273
134491380,4ptp4l0-21swapper/312:00:483
134491380,4ptp4l0-21swapper/311:51:213
134491380,4ptp4l0-21swapper/311:45:173
134491380,4ptp4l0-21swapper/311:26:003
134491380,4ptp4l0-21swapper/311:15:103
134491380,4ptp4l0-21swapper/310:21:563
134491380,4ptp4l0-21swapper/309:55:493
134491380,4ptp4l0-21swapper/309:41:573
134491380,4ptp4l0-21swapper/309:28:343
134491380,4ptp4l0-21swapper/309:10:163
134491380,4ptp4l0-21swapper/308:34:073
134491380,4ptp4l0-21swapper/308:27:133
134491380,4ptp4l0-21swapper/308:10:143
134491380,4ptp4l0-21swapper/212:23:282
134491380,4ptp4l0-21swapper/212:08:142
134491380,4ptp4l0-21swapper/211:41:362
134491380,4ptp4l0-21swapper/211:29:132
134491380,4ptp4l0-21swapper/211:01:022
134491380,4ptp4l0-21swapper/210:06:042
134491380,4ptp4l0-21swapper/210:01:482
134491380,4ptp4l0-21swapper/209:51:452
134491380,4ptp4l0-21swapper/209:10:242
134491380,4ptp4l0-21swapper/208:55:182
134491380,4ptp4l0-21swapper/208:20:542
134491380,4ptp4l0-21swapper/112:35:241
134491380,4ptp4l0-21swapper/110:20:141
134491380,4ptp4l0-21swapper/109:20:221
134491380,4ptp4l0-21swapper/107:11:181
134491380,4ptp4l0-21swapper/011:00:190
134491380,4ptp4l0-21swapper/010:30:280
134491380,4ptp4l0-21swapper/010:10:410
134491380,4ptp4l0-21swapper/010:10:410
134491380,4ptp4l0-21swapper/009:49:060
134491380,4ptp4l0-21swapper/009:15:160
134491380,4ptp4l0-21swapper/008:45:200
134491380,4ptp4l0-21swapper/008:10:250
134491380,3ptp4l26077-21ntpq11:45:240
134491380,3ptp4l0-21swapper/311:42:313
134491380,3ptp4l0-21swapper/309:17:403
134491380,3ptp4l0-21swapper/108:40:221
134491380,3ptp4l0-21swapper/011:35:290
46198370,4rtkit-daemon0-21swapper/312:06:213
134491370,4ptp4l0-21swapper/312:36:243
134491370,4ptp4l0-21swapper/312:16:053
134491370,4ptp4l0-21swapper/311:22:423
134491370,4ptp4l0-21swapper/310:02:513
134491370,4ptp4l0-21swapper/308:40:463
134491370,4ptp4l0-21swapper/109:00:271
134491370,3ptp4l0-21swapper/308:51:223
134491370,3ptp4l0-21swapper/108:37:271
134491360,4ptp4l0-21swapper/311:07:353
134491360,4ptp4l0-21swapper/311:07:353
134491360,4ptp4l0-21swapper/310:06:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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