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2026-05-09 - 20:15
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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 Sat May 09, 2026 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1404721570,6sleep32704499cyclictest07:50:193
2704399762,33cyclictest0-21swapper/207:30:232
27043996730,5cyclictest33-21ksoftirqd/209:25:002
27043996534,4cyclictest33-21ksoftirqd/208:55:002
27043996330,5cyclictest33-21ksoftirqd/211:50:012
27043996231,6cyclictest33-21ksoftirqd/207:45:192
27043996231,5cyclictest33-21ksoftirqd/207:10:152
27043996229,8cyclictest33-21ksoftirqd/209:40:002
27043996228,5cyclictest33-21ksoftirqd/209:55:282
27043996227,4cyclictest33-21ksoftirqd/208:41:332
2704399622,32cyclictest0-21swapper/212:10:222
2704399622,31cyclictest0-21swapper/210:34:252
27043996130,5cyclictest33-21ksoftirqd/212:20:162
27043996129,9cyclictest33-21ksoftirqd/207:15:132
27043996129,5cyclictest33-21ksoftirqd/207:55:212
27043996127,5cyclictest33-21ksoftirqd/211:20:152
2704399612,33cyclictest0-21swapper/208:02:252
2704399612,32cyclictest0-21swapper/210:45:522
134491610,2ptp4l19087-21ntp_states08:00:223
27043996031,5cyclictest33-21ksoftirqd/207:40:012
27043996025,6cyclictest33-21ksoftirqd/209:00:202
27043996024,5cyclictest33-21ksoftirqd/210:40:222
2704399602,32cyclictest0-21swapper/212:09:242
134491600,5ptp4l2704499cyclictest10:47:293
27043995928,5cyclictest33-21ksoftirqd/212:35:192
27043995923,6cyclictest33-21ksoftirqd/211:00:182
27043995923,5cyclictest33-21ksoftirqd/208:15:162
134491590,3ptp4l0-21swapper/009:40:270
2704399586,4cyclictest33-21ksoftirqd/209:00:002
27043995827,9cyclictest33-21ksoftirqd/207:25:002
2704399582,32cyclictest0-21swapper/209:46:512
27043995820,6cyclictest33-21ksoftirqd/209:30:252
134491580,5ptp4l0-21swapper/307:07:153
134491580,4ptp4l0-21swapper/107:20:191
134491580,3ptp4l9967-21memory11:10:193
27043995725,5cyclictest33-21ksoftirqd/211:29:182
27043995724,5cyclictest33-21ksoftirqd/210:15:262
2704399572,35cyclictest0-21swapper/208:30:132
27043995722,5cyclictest33-21ksoftirqd/208:10:192
134491570,5ptp4l0-21swapper/010:05:380
134491570,3ptp4l0-21swapper/308:55:003
27043995631,7cyclictest33-21ksoftirqd/208:35:292
2704399562,35cyclictest0-21swapper/209:40:152
134491560,4ptp4l0-21swapper/308:15:373
134491560,3ptp4l0-21swapper/110:35:391
134491560,3ptp4l0-21swapper/007:45:250
2704399552,35cyclictest0-21swapper/208:45:232
2704399550,6cyclictest13797-21latency_hist12:30:002
134491550,3ptp4l0-21swapper/308:26:003
134491550,3ptp4l0-21swapper/011:00:130
2704399542,7cyclictest0-21swapper/211:10:172
27043995423,9cyclictest33-21ksoftirqd/207:35:172
134491540,4ptp4l0-21swapper/309:47:553
134491540,3ptp4l0-21swapper/307:11:583
134491540,2ptp4l0-21swapper/309:30:293
2704399534,6cyclictest27863-21tr11:50:142
2704399534,5cyclictest33-21ksoftirqd/211:40:012
27043995330,6cyclictest33-21ksoftirqd/210:04:282
2704399532,7cyclictest0-21swapper/210:35:242
2704399532,7cyclictest0-21swapper/208:20:232
2704399532,7cyclictest0-21swapper/207:50:282
27043995323,7cyclictest33-21ksoftirqd/210:25:132
134491530,6ptp4l0-21swapper/107:09:451
134491530,4ptp4l0-21swapper/310:50:373
134491530,3ptp4l0-21swapper/010:50:190
2704399524,6cyclictest33-21ksoftirqd/211:15:142
2704399523,7cyclictest0-21swapper/210:20:162
27043995221,3cyclictest33-21ksoftirqd/210:50:162
134491520,4ptp4l0-21swapper/211:58:032
134491520,4ptp4l0-21swapper/010:28:180
2704399515,8cyclictest33-21ksoftirqd/211:05:132
2704399515,5cyclictest33-21ksoftirqd/209:50:262
2704399515,2cyclictest0-21swapper/210:05:142
2704399512,22cyclictest0-21swapper/210:57:442
2704399510,7cyclictest33-21ksoftirqd/210:10:182
134491510,4ptp4l0-21swapper/212:33:472
134491510,4ptp4l0-21swapper/212:33:472
134491510,4ptp4l0-21swapper/109:37:461
134491510,3ptp4l0-21swapper/309:01:583
134491510,3ptp4l0-21swapper/307:30:363
134491510,3ptp4l0-21swapper/008:05:040
134491510,12ptp4l0-21swapper/110:19:281
2704399505,5cyclictest33-21ksoftirqd/211:45:002
2704399502,7cyclictest0-21swapper/207:25:142
2704399500,11cyclictest33-21ksoftirqd/212:15:152
134491500,5ptp4l0-21swapper/207:07:372
134491500,4ptp4l0-21swapper/309:24:093
134491500,4ptp4l0-21swapper/211:34:382
134491500,4ptp4l0-21swapper/209:05:362
134491500,3ptp4l0-21swapper/310:35:453
134491500,3ptp4l0-21swapper/307:45:093
2704399492,7cyclictest0-21swapper/209:25:182
134491490,5ptp4l0-21swapper/007:35:210
134491490,4ptp4l0-21swapper/309:10:303
134491490,4ptp4l0-21swapper/308:09:303
134491490,4ptp4l0-21swapper/111:19:331
134491490,4ptp4l0-21swapper/010:02:230
134491490,4ptp4l0-21swapper/009:27:550
134491490,3ptp4l0-21swapper/310:07:013
134491490,3ptp4l0-21swapper/308:45:313
134491490,10ptp4l0-21swapper/307:22:163
2704399484,5cyclictest33-21ksoftirqd/209:15:172
134491480,4ptp4l0-21swapper/309:43:583
134491480,4ptp4l0-21swapper/307:56:333
134491480,4ptp4l0-21swapper/011:32:040
134491480,3ptp4l2704199cyclictest11:14:360
134491480,3ptp4l0-21swapper/307:43:473
2704399474,3cyclictest121rcu_preempt09:10:272
2704399471,8cyclictest33-21ksoftirqd/208:10:002
2704399470,6cyclictest33-21ksoftirqd/208:25:172
134491470,9ptp4l0-21swapper/012:00:230
134491470,4ptp4l0-21swapper/307:25:343
134491470,3ptp4l0-21swapper/309:08:043
134491470,13ptp4l25-21ksoftirqd/109:23:081
134491470,12ptp4l25-21ksoftirqd/112:05:331
2704399463,5cyclictest33-21ksoftirqd/212:00:142
134491460,3ptp4l0-21swapper/311:06:563
134491460,3ptp4l0-21swapper/308:30:413
134491460,3ptp4l0-21swapper/109:55:391
134491460,3ptp4l0-21swapper/108:39:261
134491460,3ptp4l0-21swapper/008:28:070
27041994539,3cyclictest4337-21sh12:10:000
134491450,9ptp4l0-21swapper/007:05:180
134491450,5ptp4l0-21swapper/011:40:110
134491450,4ptp4l0-21swapper/110:28:241
134491440,4ptp4l17972-21apt-get08:00:120
134491440,4ptp4l0-21swapper/308:44:183
134491440,4ptp4l0-21swapper/109:06:451
134491440,3ptp4l0-21swapper/309:25:153
134491440,17ptp4l9-21ksoftirqd/011:21:590
134491430,9ptp4l0-21swapper/011:48:180
134491430,5ptp4l2318-21gnome-shell08:52:580
134491430,5ptp4l0-21swapper/312:30:213
134491430,5ptp4l0-21swapper/312:30:213
134491430,4ptp4l0-21swapper/311:04:403
134491430,4ptp4l0-21swapper/310:20:413
134491430,4ptp4l0-21swapper/008:56:570
134491430,3ptp4l0-21swapper/111:56:101
134491430,3ptp4l0-21swapper/009:03:590
134491420,5ptp4l1432-21apt-get09:45:020
134491420,5ptp4l1328-21ls12:00:261
134491420,5ptp4l0-21swapper/008:45:150
134491420,5ptp4l0-21swapper/007:10:160
134491420,4ptp4l6720-21apt-get11:05:121
134491420,3ptp4l12321-21ls10:05:201
134491420,3ptp4l0-21swapper/310:55:363
134491420,3ptp4l0-21swapper/111:00:591
134491410,6ptp4l0-21swapper/007:40:550
134491410,5ptp4l0-21swapper/108:55:111
134491410,5ptp4l0-21swapper/011:05:140
134491410,5ptp4l0-21swapper/009:15:190
134491410,5ptp4l0-21swapper/007:51:260
134491410,4ptp4l31148-21users09:35:290
134491410,4ptp4l30596-21ntp_states09:35:233
134491410,4ptp4l30315-21diskstats11:55:153
134491410,4ptp4l25614-21df11:45:131
134491410,4ptp4l16449-21diskstats11:25:151
134491410,4ptp4l0-21swapper/010:43:100
134491410,4ptp4l0-21swapper/009:33:140
134491410,3ptp4l4542-21hddtemp_smartct08:40:150
134491410,3ptp4l22879-21apt-get10:30:120
134491410,3ptp4l17861-21ls12:35:271
134491400,5ptp4l5792-21ps12:10:241
134491400,5ptp4l0-21swapper/309:55:163
134491400,5ptp4l0-21swapper/112:30:121
134491400,5ptp4l0-21swapper/112:30:121
134491400,5ptp4l0-21swapper/112:20:191
134491400,5ptp4l0-21swapper/110:30:121
134491400,4ptp4l9189-21apt-get12:20:083
134491400,4ptp4l7967-21/usr/sbin/munin12:15:211
134491400,4ptp4l31121-21ntp_states11:55:230
134491400,4ptp4l2667-21iostat10:55:171
134491400,4ptp4l25227-21diskstats08:15:150
134491400,4ptp4l23518-21meminfo08:10:203
134491400,4ptp4l22780-21df_abs09:20:140
134491400,4ptp4l17309-21ls12:35:210
134491400,4ptp4l0-21swapper/309:15:233
134491400,4ptp4l0-21swapper/308:50:253
134491400,4ptp4l0-21swapper/110:50:411
134491400,4ptp4l0-21swapper/110:20:211
134491400,4ptp4l0-21swapper/011:25:170
134491400,4ptp4l0-21swapper/010:55:140
134491400,4ptp4l0-21swapper/009:50:250
134491400,4ptp4l0-21swapper/009:10:200
134491400,4ptp4l0-21swapper/009:05:300
134491400,4ptp4l0-21swapper/008:30:460
134491400,4ptp4l0-21swapper/007:56:230
134491400,4ptp4l0-21swapper/007:25:440
134491400,4ptp4l0-21swapper/007:23:490
134491390,5ptp4l9361-21tr12:20:100
134491390,5ptp4l14519-21irqstats10:10:211
134491390,5ptp4l0-21swapper/310:15:073
134491390,5ptp4l0-21swapper/111:10:431
134491390,5ptp4l0-21swapper/109:14:251
134491390,4ptp4l2704199cyclictest08:35:580
134491390,4ptp4l21159-21hddtemp_smartct11:35:150
134491390,4ptp4l18932-21awk11:30:171
134491390,4ptp4l0-21swapper/310:40:103
134491390,4ptp4l0-21swapper/310:28:423
134491390,4ptp4l0-21swapper/310:00:313
134491390,4ptp4l0-21swapper/308:35:163
134491390,4ptp4l0-21swapper/307:35:183
134491390,4ptp4l0-21swapper/307:16:113
134491390,4ptp4l0-21swapper/112:25:201
134491390,4ptp4l0-21swapper/111:35:171
134491390,4ptp4l0-21swapper/110:00:131
134491390,4ptp4l0-21swapper/109:02:531
134491390,4ptp4l0-21swapper/108:50:231
134491390,4ptp4l0-21swapper/108:45:201
134491390,4ptp4l0-21swapper/108:30:291
134491390,4ptp4l0-21swapper/107:34:531
134491390,4ptp4l0-21swapper/012:25:520
134491390,4ptp4l0-21swapper/012:19:030
134491390,4ptp4l0-21swapper/011:52:220
134491390,4ptp4l0-21swapper/011:18:330
134491390,4ptp4l0-21swapper/010:46:320
134491390,4ptp4l0-21swapper/010:19:580
134491390,4ptp4l0-21swapper/010:11:590
134491390,4ptp4l0-21swapper/008:20:200
134491390,4ptp4l0-21swapper/008:12:550
134491390,4ptp4l0-21swapper/007:34:000
134491390,4ptp4l0-21swapper/007:15:220
134491390,3ptp4l7333-21iostat09:55:190
134491390,3ptp4l28127-21iostat_ios10:40:171
134491390,3ptp4l26183-21/usr/sbin/munin10:35:220
134491390,3ptp4l26135-21ps08:15:241
134491390,3ptp4l15192-21python11:20:251
134491390,3ptp4l0-21swapper/309:50:223
134491390,3ptp4l0-21swapper/109:19:271
134491390,3ptp4l0-21swapper/108:05:241
134491380,4ptp4l0-21swapper/312:35:273
134491380,4ptp4l0-21swapper/312:15:013
134491380,4ptp4l0-21swapper/312:10:153
134491380,4ptp4l0-21swapper/311:48:593
134491380,4ptp4l0-21swapper/311:25:253
134491380,4ptp4l0-21swapper/311:15:203
134491380,4ptp4l0-21swapper/310:30:223
134491380,4ptp4l0-21swapper/308:20:093
134491380,4ptp4l0-21swapper/110:45:131
134491380,4ptp4l0-21swapper/109:46:161
134491380,4ptp4l0-21swapper/109:40:121
134491380,4ptp4l0-21swapper/108:40:031
134491380,4ptp4l0-21swapper/108:25:511
134491380,4ptp4l0-21swapper/108:22:111
134491380,4ptp4l0-21swapper/108:14:561
134491380,4ptp4l0-21swapper/107:55:281
134491380,4ptp4l0-21swapper/107:50:111
134491380,4ptp4l0-21swapper/107:48:561
134491380,4ptp4l0-21swapper/107:35:061
134491380,4ptp4l0-21swapper/012:13:110
134491380,4ptp4l0-21swapper/010:20:150
134491380,3ptp4l28820-21ntpq11:50:231
134491380,3ptp4l25158-21latency_hist11:45:001
134491380,3ptp4l13983-21/usr/sbin/munin12:30:280
134491380,3ptp4l13983-21/usr/sbin/munin12:30:280
134491380,3ptp4l0-21swapper/312:27:173
134491380,3ptp4l0-21swapper/311:31:163
134491380,3ptp4l0-21swapper/109:51:171
134491380,3ptp4l0-21swapper/109:30:581
134491380,3ptp4l0-21swapper/109:26:271
134491380,3ptp4l0-21swapper/107:40:001
134491380,3ptp4l0-21swapper/107:25:101
134491380,3ptp4l0-21swapper/107:16:551
134491370,4ptp4l0-21swapper/312:07:573
134491370,4ptp4l0-21swapper/311:51:233
134491370,3ptp4l14326-21if_enp1s011:20:163
134491370,3ptp4l0-21swapper/311:35:233
134491370,3ptp4l0-21swapper/310:11:143
134491370,3ptp4l0-21swapper/108:00:031
134491370,3ptp4l0-21swapper/107:10:011
134491360,4ptp4l0-21swapper/311:42:213
134491360,2ptp4l41-21ksoftirqd/312:00:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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