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2026-07-01 - 16:00
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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 Wed Jul 01, 2026 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1290621420,7sleep33259799cyclictest12:15:013
108482760,5sleep125-21ksoftirqd/111:00:171
3259799685,22cyclictest18347-21timerwakeupswit10:05:283
3259799682,3cyclictest5806-21grep07:20:183
134491670,3ptp4l6372-21/usr/sbin/munin08:30:261
134491640,5ptp4l0-21swapper/011:20:110
134491630,4ptp4l0-21swapper/108:35:241
134491630,22ptp4l0-21swapper/011:59:240
134491600,4ptp4l0-21swapper/112:00:181
134491600,3ptp4l19800-21diskstats11:20:141
134491590,4ptp4l21770-21/usr/sbin/munin11:25:180
134491590,15ptp4l0-21swapper/109:45:241
3259799580,4cyclictest13663-21awk12:15:173
134491580,4ptp4l0-21swapper/109:00:481
134491580,4ptp4l0-21swapper/108:59:411
134491570,4ptp4l0-21swapper/111:59:311
134491570,4ptp4l0-21swapper/007:13:100
134491570,3ptp4l0-21swapper/108:27:451
134491560,4ptp4l0-21swapper/209:31:302
134491560,4ptp4l0-21swapper/207:06:452
134491560,4ptp4l0-21swapper/112:32:191
134491560,4ptp4l0-21swapper/108:07:491
134491560,4ptp4l0-21swapper/008:01:130
134491560,3ptp4l0-21swapper/011:50:330
133742560,5sleep13259599cyclictest08:45:251
134491550,4ptp4l0-21swapper/209:03:012
134491550,4ptp4l0-21swapper/111:49:221
134491550,4ptp4l0-21swapper/111:30:171
134491550,4ptp4l0-21swapper/009:17:370
134491550,4ptp4l0-21swapper/008:28:440
134491550,3ptp4l0-21swapper/112:38:301
134491550,3ptp4l0-21swapper/010:13:320
134491550,14ptp4l0-21swapper/109:20:141
134491540,4ptp4l0-21swapper/009:55:510
134491540,4ptp4l0-21swapper/009:55:500
134491540,4ptp4l0-21swapper/008:49:210
134491540,3ptp4l0-21swapper/011:00:200
134491540,3ptp4l0-21swapper/007:39:070
134491530,4ptp4l0-21swapper/112:24:551
134491530,4ptp4l0-21swapper/111:51:291
134491530,4ptp4l0-21swapper/108:15:281
134491530,4ptp4l0-21swapper/012:36:050
134491530,4ptp4l0-21swapper/008:42:560
134491520,5ptp4l0-21swapper/307:08:153
134491520,4ptp4l0-21swapper/112:19:481
134491520,4ptp4l0-21swapper/109:27:421
134491520,4ptp4l0-21swapper/109:27:421
134491520,4ptp4l0-21swapper/009:07:230
134491520,3ptp4l0-21swapper/111:27:461
134491520,3ptp4l0-21swapper/109:38:591
134491520,3ptp4l0-21swapper/109:11:081
134491520,3ptp4l0-21swapper/010:39:140
134491520,3ptp4l0-21swapper/007:55:160
134491520,11ptp4l0-21swapper/111:35:241
32596995118,3cyclictest33-21ksoftirqd/207:32:422
134491510,4ptp4l0-21swapper/111:12:351
134491510,4ptp4l0-21swapper/012:06:590
134491510,4ptp4l0-21swapper/010:51:400
134491510,3ptp4l0-21swapper/012:02:040
134491510,3ptp4l0-21swapper/010:26:570
134491510,11ptp4l0-21swapper/111:40:251
3259799503,3cyclictest31315-21cpuspeed_turbos11:45:143
3259799501,4cyclictest16764-21df_inode07:45:163
3259799501,3cyclictest29322-21missed_timers09:20:233
134491500,3ptp4l0-21swapper/210:09:302
134491500,3ptp4l0-21swapper/110:23:101
134491500,3ptp4l0-21swapper/008:56:580
134491500,3ptp4l0-21swapper/008:10:250
134491490,4ptp4l0-21swapper/207:58:352
134491490,4ptp4l0-21swapper/109:59:101
134491490,4ptp4l0-21swapper/109:59:101
134491490,3ptp4l0-21swapper/012:18:310
134491490,3ptp4l0-21swapper/009:34:020
32596994836,10cyclictest33-21ksoftirqd/211:30:252
32596994814,5cyclictest33-21ksoftirqd/212:10:272
32596994814,4cyclictest33-21ksoftirqd/209:00:002
134491480,4ptp4l0-21swapper/209:08:342
134491480,4ptp4l0-21swapper/207:49:312
134491480,4ptp4l0-21swapper/110:48:591
134491480,4ptp4l0-21swapper/007:52:070
134491480,3ptp4l0-21swapper/011:48:560
134491480,11ptp4l0-21swapper/212:05:122
134491480,10ptp4l0-21swapper/110:50:221
32596994734,10cyclictest33-21ksoftirqd/212:30:272
32596994714,3cyclictest33-21ksoftirqd/208:33:082
134491470,4ptp4l0-21swapper/108:12:521
134491470,4ptp4l0-21swapper/012:25:580
134491470,4ptp4l0-21swapper/010:19:100
134491470,3ptp4l0-21swapper/211:20:072
134491470,10ptp4l9760-21df07:30:121
134491460,5ptp4l0-21swapper/307:10:263
134491460,4ptp4l0-21swapper/110:59:181
134491460,4ptp4l0-21swapper/110:26:301
134491460,4ptp4l0-21swapper/107:39:341
134491460,4ptp4l0-21swapper/009:46:370
32596994511,8cyclictest33-21ksoftirqd/209:20:162
32596994511,4cyclictest33-21ksoftirqd/209:35:542
134491450,4ptp4l0-21swapper/112:29:511
134491450,4ptp4l0-21swapper/110:16:271
134491450,3ptp4l0-21swapper/010:55:160
134491450,3ptp4l0-21swapper/008:37:460
3259699448,5cyclictest33-21ksoftirqd/212:00:232
32596994411,6cyclictest33-21ksoftirqd/208:45:242
32596994410,6cyclictest33-21ksoftirqd/207:50:162
32594994438,3cyclictest9-21ksoftirqd/012:25:000
134491440,5ptp4l0-21swapper/211:07:582
134491440,5ptp4l0-21swapper/210:15:122
134491440,4ptp4l0-21swapper/107:10:411
134491440,4ptp4l0-21swapper/007:26:150
134491440,3ptp4l0-21swapper/110:38:301
134491440,3ptp4l0-21swapper/108:40:381
134491440,3ptp4l0-21swapper/108:22:391
3259699433,3cyclictest33-21ksoftirqd/211:18:092
3259699430,12cyclictest134491ptp4l08:40:272
134491430,9ptp4l0-21swapper/211:52:212
134491430,9ptp4l0-21swapper/211:37:322
134491430,9ptp4l0-21swapper/209:46:112
134491430,9ptp4l0-21swapper/107:19:171
134491430,8ptp4l0-21swapper/211:48:312
134491430,5ptp4l32675-21apt-get10:40:041
134491430,4ptp4l0-21swapper/109:53:091
134491430,3ptp4l0-21swapper/208:25:132
134491430,3ptp4l0-21swapper/111:08:381
134491430,3ptp4l0-21swapper/009:21:200
134491430,10ptp4l0-21swapper/211:10:252
32596994214,7cyclictest33-21ksoftirqd/210:55:182
134491420,9ptp4l0-21swapper/208:13:062
134491420,8ptp4l0-21swapper/209:57:322
134491420,8ptp4l0-21swapper/209:57:312
134491420,8ptp4l0-21swapper/209:42:002
134491420,8ptp4l0-21swapper/209:14:062
134491420,5ptp4l0-21swapper/309:10:283
134491420,5ptp4l0-21swapper/111:15:181
134491420,4ptp4l17481-21diskstats11:15:150
134491420,4ptp4l15076-21iostat10:00:171
134491420,4ptp4l0-21swapper/207:41:412
134491420,4ptp4l0-21swapper/110:34:061
134491420,4ptp4l0-21swapper/109:15:501
134491420,3ptp4l0-21swapper/110:08:431
134491420,3ptp4l0-21swapper/107:59:451
134491420,3ptp4l0-21swapper/107:45:421
134491420,3ptp4l0-21swapper/010:32:060
134491420,3ptp4l0-21swapper/009:36:320
134491420,3ptp4l0-21swapper/009:28:550
134491420,3ptp4l0-21swapper/009:28:550
3259699415,10cyclictest33-21ksoftirqd/208:15:112
32596994111,3cyclictest33-21ksoftirqd/208:05:252
134491410,9ptp4l0-21swapper/210:14:592
134491410,9ptp4l0-21swapper/207:38:252
134491410,8ptp4l0-21swapper/212:17:082
134491410,8ptp4l0-21swapper/210:23:042
134491410,8ptp4l0-21swapper/208:50:112
134491410,8ptp4l0-21swapper/208:35:492
134491410,5ptp4l3259499cyclictest08:15:180
134491410,5ptp4l14881-21apt-get11:10:123
134491410,5ptp4l0-21swapper/308:35:213
134491410,5ptp4l0-21swapper/109:30:351
134491410,5ptp4l0-21swapper/007:20:480
134491410,4ptp4l941-21df10:40:130
134491410,4ptp4l12886-21df_inode11:05:140
134491410,4ptp4l11215-21users07:30:270
134491410,4ptp4l10592-21diskstats11:00:142
134491410,4ptp4l0-21swapper/311:15:203
134491410,4ptp4l0-21swapper/208:22:592
134491410,4ptp4l0-21swapper/109:44:091
134491410,4ptp4l0-21swapper/108:02:301
134491410,4ptp4l0-21swapper/011:43:420
134491410,4ptp4l0-21swapper/011:34:020
134491410,3ptp4l26446-21iostat08:05:210
134491410,3ptp4l14305-21apt-get08:50:141
3259799407,25cyclictest10143-21hddtemp_smartct08:40:183
32597994033,5cyclictest41-21ksoftirqd/311:26:103
3259699407,3cyclictest33-21ksoftirqd/212:20:282
32596994035,3cyclictest33-21ksoftirqd/210:50:002
32595994035,3cyclictest25-21ksoftirqd/107:30:001
134491400,8ptp4l0-21swapper/211:26:152
134491400,5ptp4l0-21swapper/211:55:242
134491400,5ptp4l0-21swapper/207:15:132
134491400,5ptp4l0-21swapper/107:20:191
134491400,5ptp4l0-21swapper/009:10:010
134491400,4ptp4l797-21hddtemp_smartct08:20:170
134491400,4ptp4l24152-21perl10:20:160
134491400,4ptp4l15255-21meminfo08:50:220
134491400,4ptp4l0-21swapper/311:30:183
134491400,4ptp4l0-21swapper/308:10:193
134491400,4ptp4l0-21swapper/112:10:221
134491400,4ptp4l0-21swapper/112:05:021
134491400,4ptp4l0-21swapper/110:11:161
134491400,4ptp4l0-21swapper/109:09:361
134491400,4ptp4l0-21swapper/012:30:140
134491400,4ptp4l0-21swapper/011:13:580
134491400,4ptp4l0-21swapper/009:50:280
134491400,4ptp4l0-21swapper/009:00:290
134491400,4ptp4l0-21swapper/008:30:220
134491400,4ptp4l0-21swapper/007:47:020
134491400,3ptp4l27711-21ntp_states11:35:230
134491400,3ptp4l18757-21apt-get07:50:141
134491400,3ptp4l15464-21meminfo10:00:202
134491400,3ptp4l0-21swapper/009:42:460
134491400,2ptp4l29947-21strings11:40:213
32597993934,3cyclictest41-21ksoftirqd/309:33:203
3259799390,3cyclictest18652-21apt-get09:00:043
3259699397,5cyclictest33-21ksoftirqd/210:25:172
134491390,5ptp4l0-21swapper/311:05:283
134491390,5ptp4l0-21swapper/207:10:282
134491390,4ptp4l30614-21grep08:15:113
134491390,4ptp4l19082-21fschecks_count07:50:163
134491390,4ptp4l0-21swapper/312:09:523
134491390,4ptp4l0-21swapper/312:00:133
134491390,4ptp4l0-21swapper/309:45:123
134491390,4ptp4l0-21swapper/309:25:373
134491390,4ptp4l0-21swapper/309:25:373
134491390,4ptp4l0-21swapper/309:15:123
134491390,4ptp4l0-21swapper/308:59:243
134491390,4ptp4l0-21swapper/308:25:153
134491390,4ptp4l0-21swapper/307:40:213
134491390,4ptp4l0-21swapper/212:38:182
134491390,4ptp4l0-21swapper/211:41:282
134491390,4ptp4l0-21swapper/210:51:282
134491390,4ptp4l0-21swapper/210:40:322
134491390,4ptp4l0-21swapper/210:37:442
134491390,4ptp4l0-21swapper/210:30:282
134491390,4ptp4l0-21swapper/209:51:192
134491390,4ptp4l0-21swapper/209:25:472
134491390,4ptp4l0-21swapper/209:25:472
134491390,4ptp4l0-21swapper/209:15:132
134491390,4ptp4l0-21swapper/207:25:242
134491390,4ptp4l0-21swapper/207:20:162
134491390,4ptp4l0-21swapper/012:10:080
134491390,4ptp4l0-21swapper/010:45:240
134491390,4ptp4l0-21swapper/010:00:140
134491390,4ptp4l0-21swapper/007:40:550
134491390,4ptp4l0-21swapper/007:15:470
134491390,3ptp4l28319-21apt-get10:30:133
134491390,3ptp4l23556-21apt-get08:00:042
134491390,3ptp4l19815-21awk11:20:153
134491390,3ptp4l19110-21apt-get10:10:133
134491390,3ptp4l0-21swapper/307:15:203
32597993832,4cyclictest41-21ksoftirqd/308:00:423
134491380,4ptp4l17303-21if_enp1s010:05:180
134491380,4ptp4l0-21swapper/311:58:593
134491380,4ptp4l0-21swapper/310:56:263
134491380,4ptp4l0-21swapper/310:47:083
134491380,4ptp4l0-21swapper/310:44:203
134491380,4ptp4l0-21swapper/310:23:293
134491380,4ptp4l0-21swapper/309:40:193
134491380,4ptp4l0-21swapper/307:55:133
134491380,4ptp4l0-21swapper/307:30:153
134491380,4ptp4l0-21swapper/307:25:233
134491380,4ptp4l0-21swapper/212:27:572
134491380,4ptp4l0-21swapper/107:40:151
134491380,3ptp4l0-21swapper/311:53:263
134491380,3ptp4l0-21swapper/311:39:573
134491380,3ptp4l0-21swapper/310:00:243
134491380,3ptp4l0-21swapper/309:55:053
134491380,3ptp4l0-21swapper/309:55:053
32597993732,3cyclictest41-21ksoftirqd/312:30:113
32597993731,4cyclictest41-21ksoftirqd/308:45:523
3259799372,31cyclictest329-21apt-get08:20:133
3259799372,30cyclictest9903-21apt-get09:50:133
3259799370,3cyclictest15419-21ntp_states08:50:243
134491370,4ptp4l0-21swapper/312:39:003
134491370,4ptp4l0-21swapper/310:37:243
134491370,4ptp4l0-21swapper/310:28:183
134491370,4ptp4l0-21swapper/309:38:153
134491370,4ptp4l0-21swapper/309:08:043
134491370,4ptp4l0-21swapper/308:05:253
134491370,3ptp4l0-21swapper/311:02:043
134491360,4ptp4l0-21swapper/312:28:043
134491360,3ptp4l0-21swapper/312:23:553
134491360,3ptp4l0-21swapper/310:16:543
3259799351,28cyclictest5104-21apt-get08:30:143
134491350,3ptp4l0-21swapper/310:54:263
134491350,3ptp4l0-21swapper/307:35:183
46198310,5rtkit-daemon0-21swapper/107:06:201
302492245,11sleep00-21swapper/007:05:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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