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2026-06-21 - 22:59
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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 Sun Jun 21, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2206021570,3sleep33042899cyclictest12:35:273
99421420,4sleep13042699cyclictest11:50:281
3042799722,68cyclictest0-21swapper/208:50:282
3042799722,68cyclictest0-21swapper/208:50:282
3042899680,24cyclictest5075-21cpu07:25:123
111612620,7sleep03042599cyclictest07:35:270
134491610,5ptp4l0-21swapper/012:15:110
134491600,18ptp4l0-21swapper/109:05:181
30428995912,45cyclictest0-21swapper/309:49:483
3042899590,4cyclictest5637-21unixbench_multi12:00:273
298362590,7sleep33042899cyclictest10:35:153
134491590,4ptp4l0-21swapper/309:30:263
134491590,4ptp4l0-21swapper/011:35:180
33952580,6sleep23042799cyclictest11:55:262
3042899580,31cyclictest20137-21seq12:34:563
134491580,4ptp4l0-21swapper/210:05:592
3042899570,32cyclictest22014-21taskset10:15:493
134491570,6ptp4l0-21swapper/012:05:290
134491570,4ptp4l0-21swapper/012:02:540
134491570,3ptp4l10414-21/usr/sbin/munin08:45:212
134491570,3ptp4l0-21swapper/211:30:002
3042899562,29cyclictest0-21swapper/310:29:243
30428995611,43cyclictest0-21swapper/310:33:093
134491560,5ptp4l0-21swapper/108:35:161
3042899554,14cyclictest134491ptp4l07:20:223
3042899550,4cyclictest14593-21cpuspeed_turbos07:45:123
134491550,9ptp4l0-21swapper/010:33:000
134491550,4ptp4l0-21swapper/010:08:090
134491550,4ptp4l0-21swapper/008:30:190
134491550,4ptp4l0-21swapper/008:16:210
134491550,4ptp4l0-21swapper/007:16:050
3042899548,44cyclictest0-21swapper/308:49:293
134491540,4ptp4l0-21swapper/211:44:322
134491540,4ptp4l0-21swapper/008:59:590
134491540,4ptp4l0-21swapper/007:42:260
134491540,3ptp4l0-21swapper/210:15:192
134491530,4ptp4l0-21swapper/008:49:030
134491530,3ptp4l0-21swapper/110:17:521
134491520,4ptp4l0-21swapper/010:45:510
134491520,4ptp4l0-21swapper/010:04:090
134491520,4ptp4l0-21swapper/007:57:230
134491520,3ptp4l0-21swapper/310:45:213
134491520,3ptp4l0-21swapper/212:18:142
134491520,3ptp4l0-21swapper/011:20:380
3042899511,29cyclictest19730-21seq11:21:303
3042899510,30cyclictest2411-21taskset07:19:293
134491510,7ptp4l33-21ksoftirqd/207:25:262
134491510,4ptp4l0-21swapper/010:12:580
134491510,3ptp4l0-21swapper/207:14:042
134491510,3ptp4l0-21swapper/010:26:590
3042899500,29cyclictest26677-21seq11:37:203
134491500,4ptp4l0-21swapper/010:43:150
134491500,4ptp4l0-21swapper/009:53:550
134491500,4ptp4l0-21swapper/009:26:150
134491500,4ptp4l0-21swapper/007:10:480
134491500,3ptp4l0-21swapper/109:12:591
3042899491,29cyclictest21838-21seq09:08:443
134491490,8ptp4l28932-21irqstats07:05:181
134491490,4ptp4l0-21swapper/012:39:080
134491480,4ptp4l0-21swapper/208:01:382
134491480,4ptp4l0-21swapper/012:13:470
134491470,4ptp4l0-21swapper/311:05:133
134491470,3ptp4l0-21swapper/109:25:561
3042899460,30cyclictest8117-21chrt08:40:103
3042899460,2cyclictest29107-21apt-get09:25:133
3042899460,27cyclictest10546-21chrt11:02:313
30426994631,5cyclictest25-21ksoftirqd/109:53:451
134491460,4ptp4l0-21swapper/011:52:230
134491460,4ptp4l0-21swapper/010:22:550
134491460,4ptp4l0-21swapper/008:04:040
134491460,3ptp4l0-21swapper/209:38:002
134491460,3ptp4l0-21swapper/107:25:401
134491460,3ptp4l0-21swapper/007:30:460
134491460,10ptp4l0-21swapper/210:00:152
3042899452,24cyclictest0-21swapper/310:43:093
3042899451,21cyclictest134691getstats10:55:243
3042899450,31cyclictest1066-21seq11:50:553
3042899450,30cyclictest17075-21seq08:59:293
3042899450,29cyclictest29166-21taskset11:44:313
134491450,5ptp4l0-21swapper/009:30:270
134491450,4ptp4l16803-21apt-get07:50:140
134491450,4ptp4l16803-21apt-get07:50:140
134491450,4ptp4l0-21swapper/307:10:173
134491450,4ptp4l0-21swapper/010:59:230
134491450,3ptp4l0-21swapper/210:35:292
134491450,3ptp4l0-21swapper/112:35:151
134491450,3ptp4l0-21swapper/111:09:581
3042899442,1cyclictest0-21swapper/308:15:143
3042899440,27cyclictest17710-21taskset12:28:153
134491440,9ptp4l0-21swapper/007:25:490
134491440,7ptp4l0-21swapper/007:05:180
134491440,5ptp4l0-21swapper/312:05:143
134491440,4ptp4l20512-21ls07:55:253
134491440,3ptp4l3684-21apt-get09:40:112
134491440,3ptp4l0-21swapper/112:26:521
3042899430,26cyclictest6022-21chrt10:53:453
134491430,9ptp4l0-21swapper/210:24:292
134491430,5ptp4l32147-21diskstats10:40:172
134491430,5ptp4l23488-21apt-get08:05:020
134491430,4ptp4l18535-21hddtemp_smartct12:30:160
134491430,4ptp4l18172-21iostat09:00:190
134491430,4ptp4l1137-21df08:25:130
134491430,4ptp4l0-21swapper/307:51:193
134491430,4ptp4l0-21swapper/307:51:183
3042899420,28cyclictest17424-21taskset11:16:433
30427994236,4cyclictest33-21ksoftirqd/212:27:322
134491420,5ptp4l9652-21ls12:10:203
134491420,5ptp4l23772-21/usr/sbin/munin10:20:231
134491420,5ptp4l0-21swapper/307:30:183
134491420,5ptp4l0-21swapper/108:23:421
134491420,5ptp4l0-21swapper/011:25:140
134491420,4ptp4l31484-21hddtemp_smartct08:20:170
134491420,4ptp4l27758-21meminfo09:20:192
134491420,4ptp4l24797-21diskstats09:15:132
134491420,4ptp4l23922-21apt-get08:05:132
134491420,4ptp4l22622-21hddtemp_smartct09:10:163
134491420,4ptp4l19029-21ls09:00:272
134491420,4ptp4l13293-21apt-get11:10:123
134491420,4ptp4l10970-21python07:35:273
134491420,3ptp4l8134-21apt-get08:40:112
134491420,3ptp4l17796-21apt-get10:10:132
3042899415,19cyclictest137891phc2sys09:00:203
134491410,5ptp4l19099-21mailstats10:10:261
134491410,5ptp4l0-21swapper/309:40:123
134491410,5ptp4l0-21swapper/308:30:193
134491410,5ptp4l0-21swapper/211:10:122
134491410,5ptp4l0-21swapper/112:10:221
134491410,5ptp4l0-21swapper/011:30:260
134491410,5ptp4l0-21swapper/011:15:170
134491410,5ptp4l0-21swapper/011:05:170
134491410,5ptp4l0-21swapper/009:45:170
134491410,5ptp4l0-21swapper/008:10:140
134491410,4ptp4l4992-21memory12:00:202
134491410,4ptp4l1533-21df_abs09:35:123
134491410,4ptp4l14028-21iostat12:20:171
134491410,4ptp4l12975-21apt-get12:20:030
134491410,4ptp4l0-21swapper/310:10:233
134491410,4ptp4l0-21swapper/309:50:223
134491410,4ptp4l0-21swapper/309:17:583
134491410,4ptp4l0-21swapper/210:47:052
134491410,4ptp4l0-21swapper/108:05:041
134491410,4ptp4l0-21swapper/011:11:260
134491410,4ptp4l0-21swapper/009:40:570
134491410,3ptp4l27215-21apt-get10:30:132
134491410,3ptp4l26809-21apt-get09:20:123
134491410,3ptp4l22555-21apt-get11:30:113
134491410,3ptp4l19005-21strings11:20:212
134491410,3ptp4l18370-21ls07:50:282
134491410,3ptp4l18370-21ls07:50:282
134491410,3ptp4l0-21swapper/209:47:112
134491410,3ptp4l0-21swapper/207:23:322
134491410,3ptp4l0-21swapper/008:37:330
3042899400,27cyclictest21389-21taskset08:00:063
30426994026,4cyclictest25-21ksoftirqd/107:23:061
134491400,5ptp4l0-21swapper/310:05:153
134491400,5ptp4l0-21swapper/212:20:142
134491400,5ptp4l0-21swapper/208:20:182
134491400,5ptp4l0-21swapper/208:15:212
134491400,5ptp4l0-21swapper/011:45:180
134491400,4ptp4l21851-21/usr/sbin/munin08:00:171
134491400,4ptp4l20112-21cstates09:05:140
134491400,4ptp4l15330-21diskstats08:55:142
134491400,4ptp4l12723-21/usr/sbin/munin08:50:110
134491400,4ptp4l12723-21/usr/sbin/munin08:50:110
134491400,4ptp4l0-21swapper/310:00:003
134491400,4ptp4l0-21swapper/308:52:143
134491400,4ptp4l0-21swapper/308:52:143
134491400,4ptp4l0-21swapper/308:25:183
134491400,4ptp4l0-21swapper/308:05:133
134491400,4ptp4l0-21swapper/212:05:302
134491400,4ptp4l0-21swapper/211:05:172
134491400,4ptp4l0-21swapper/209:50:122
134491400,4ptp4l0-21swapper/209:10:132
134491400,4ptp4l0-21swapper/208:37:312
134491400,4ptp4l0-21swapper/208:25:212
134491400,4ptp4l0-21swapper/207:55:182
134491400,4ptp4l0-21swapper/207:38:342
134491400,4ptp4l0-21swapper/011:55:250
134491400,4ptp4l0-21swapper/011:40:260
134491400,4ptp4l0-21swapper/009:21:230
134491400,4ptp4l0-21swapper/009:10:170
134491400,4ptp4l0-21swapper/007:46:340
134491400,4ptp4l0-21swapper/007:20:230
134491400,3ptp4l29464-21apt-get11:45:102
134491400,3ptp4l21257-21memory10:15:220
134491400,3ptp4l14574-21ntp_states12:20:223
134491400,3ptp4l11521-21meminfo09:55:182
134491400,3ptp4l1018-21users11:50:282
134491390,5ptp4l8687-21awk12:10:122
134491390,5ptp4l0-21swapper/207:32:122
134491390,4ptp4l0-21swapper/312:15:183
134491390,4ptp4l0-21swapper/311:55:033
134491390,4ptp4l0-21swapper/311:25:203
134491390,4ptp4l0-21swapper/310:00:153
134491390,4ptp4l0-21swapper/308:35:283
134491390,4ptp4l0-21swapper/308:20:203
134491390,4ptp4l0-21swapper/308:10:223
134491390,4ptp4l0-21swapper/307:41:493
134491390,4ptp4l0-21swapper/212:35:222
134491390,4ptp4l0-21swapper/211:36:142
134491390,4ptp4l0-21swapper/211:02:592
134491390,4ptp4l0-21swapper/210:51:412
134491390,4ptp4l0-21swapper/210:28:182
134491390,4ptp4l0-21swapper/209:28:352
134491390,4ptp4l0-21swapper/209:05:152
134491390,4ptp4l0-21swapper/208:30:122
134491390,4ptp4l0-21swapper/207:49:182
134491390,4ptp4l0-21swapper/207:40:222
134491390,4ptp4l0-21swapper/112:07:461
134491390,4ptp4l0-21swapper/111:25:181
134491390,4ptp4l0-21swapper/111:20:001
134491390,4ptp4l0-21swapper/110:05:531
134491390,4ptp4l0-21swapper/108:57:501
134491390,4ptp4l0-21swapper/108:44:201
134491390,4ptp4l0-21swapper/108:16:581
134491390,4ptp4l0-21swapper/108:14:281
134491390,4ptp4l0-21swapper/107:56:521
134491390,4ptp4l0-21swapper/009:35:070
134491390,3ptp4l8334-21/usr/sbin/munin08:40:130
134491390,3ptp4l18110-21apt-get12:30:122
134491390,3ptp4l0-21swapper/310:20:013
134491390,3ptp4l0-21swapper/211:33:472
134491390,3ptp4l0-21swapper/208:13:212
134491390,3ptp4l0-21swapper/207:15:292
134491390,3ptp4l0-21swapper/111:12:441
134491390,3ptp4l0-21swapper/108:32:231
134491390,3ptp4l0-21swapper/107:51:551
134491390,3ptp4l0-21swapper/107:51:551
134491390,3ptp4l0-21swapper/009:15:310
134491380,4ptp4l0-21swapper/209:30:172
134491380,4ptp4l0-21swapper/112:01:511
134491380,4ptp4l0-21swapper/111:58:231
134491380,4ptp4l0-21swapper/111:44:411
134491380,4ptp4l0-21swapper/111:32:411
134491380,4ptp4l0-21swapper/111:23:201
134491380,4ptp4l0-21swapper/110:59:051
134491380,4ptp4l0-21swapper/110:01:021
134491380,4ptp4l0-21swapper/109:15:211
134491380,4ptp4l0-21swapper/109:02:301
134491380,4ptp4l0-21swapper/108:25:201
134491380,4ptp4l0-21swapper/107:45:221
134491380,4ptp4l0-21swapper/107:40:111
134491380,4ptp4l0-21swapper/107:36:251
134491380,4ptp4l0-21swapper/107:14:491
134491380,4ptp4l0-21swapper/011:00:160
134491380,4ptp4l0-21swapper/010:50:280
134491380,4ptp4l0-21swapper/009:57:120
134491380,3ptp4l12239-21mailstats12:15:241
134491380,3ptp4l0-21swapper/311:45:133
134491380,3ptp4l0-21swapper/110:32:411
134491380,3ptp4l0-21swapper/109:45:231
134491380,3ptp4l0-21swapper/109:30:121
134491380,3ptp4l0-21swapper/109:23:151
134491380,3ptp4l0-21swapper/012:25:140
30426993731,4cyclictest25-21ksoftirqd/109:57:021
134491370,4ptp4l0-21swapper/211:15:252
134491370,4ptp4l0-21swapper/108:50:241
134491370,4ptp4l0-21swapper/108:50:241
134491370,4ptp4l0-21swapper/107:17:511
134491370,4ptp4l0-21swapper/010:35:140
134491370,3ptp4l0-21swapper/210:55:192
134491370,3ptp4l0-21swapper/112:30:221
134491370,3ptp4l0-21swapper/111:48:021
134491370,3ptp4l0-21swapper/111:37:481
134491370,3ptp4l0-21swapper/111:03:221
134491370,3ptp4l0-21swapper/109:36:351
134491370,3ptp4l0-21swapper/108:45:131
134491370,3ptp4l0-21swapper/107:32:501
134491360,4ptp4l0-21swapper/110:48:371
134491360,3ptp4l0-21swapper/110:39:301
134491360,3ptp4l0-21swapper/109:40:101
134491350,3ptp4l0-21swapper/110:51:231
134491350,3ptp4l0-21swapper/110:29:101
134491340,3ptp4l0-21swapper/110:42:211
46198290,4rtkit-daemon0-21swapper/207:06:482
283962134,4sleep30-21swapper/307:05:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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