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2026-08-01 - 21:51
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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 Aug 01, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1135521510,6sleep01205099cyclictest08:15:210
134491760,7ptp4l0-21swapper/107:05:211
134491740,4ptp4l0-21swapper/108:10:271
134491610,5ptp4l0-21swapper/112:00:181
134491590,4ptp4l0-21swapper/107:45:201
134491580,4ptp4l0-21swapper/107:50:191
134491570,5ptp4l0-21swapper/111:50:261
134491570,4ptp4l0-21swapper/207:20:032
134491570,4ptp4l0-21swapper/010:20:240
134491560,5ptp4l0-21swapper/111:00:231
134491560,3ptp4l0-21swapper/312:07:533
134491550,3ptp4l0-21swapper/111:40:221
134491540,3ptp4l0-21swapper/111:30:141
134491540,3ptp4l0-21swapper/009:45:400
134491530,4ptp4l0-21swapper/110:15:201
134491530,3ptp4l0-21swapper/107:57:581
134491530,3ptp4l0-21swapper/107:27:111
134491530,2ptp4l3409-21apt-get08:00:150
134491530,2ptp4l3409-21apt-get08:00:150
134491530,17ptp4l0-21swapper/007:24:270
134491520,4ptp4l0-21swapper/210:27:172
134491510,3ptp4l0-21swapper/009:11:020
134491510,3ptp4l0-21swapper/008:39:560
134491500,5ptp4l0-21swapper/208:33:072
134491500,4ptp4l0-21swapper/309:34:033
134491500,4ptp4l0-21swapper/110:08:491
134491500,4ptp4l0-21swapper/109:55:311
134491500,4ptp4l0-21swapper/107:37:261
134491500,4ptp4l0-21swapper/011:57:280
134491500,4ptp4l0-21swapper/007:09:200
134491500,3ptp4l0-21swapper/311:12:483
134491500,3ptp4l0-21swapper/010:15:140
134491500,10ptp4l10666-21meminfo07:05:183
134491490,4ptp4l0-21swapper/308:34:263
134491490,4ptp4l0-21swapper/108:46:391
134491490,4ptp4l0-21swapper/108:02:261
134491490,4ptp4l0-21swapper/108:02:251
134491490,4ptp4l0-21swapper/008:05:110
134491490,3ptp4l0-21swapper/012:29:170
134491490,3ptp4l0-21swapper/010:35:270
134491490,19ptp4l9-21ksoftirqd/008:11:490
134491480,5ptp4l41-21ksoftirqd/311:26:303
134491480,4ptp4l0-21swapper/209:29:302
134491480,4ptp4l0-21swapper/207:16:132
134491480,4ptp4l0-21swapper/110:30:501
134491480,4ptp4l0-21swapper/107:40:101
134491480,3ptp4l0-21swapper/110:02:121
134491480,3ptp4l0-21swapper/109:44:441
134491480,12ptp4l18553-21/usr/sbin/munin08:30:261
134491470,7ptp4l9719-21apt-get07:05:112
134491470,4ptp4l0-21swapper/112:08:011
134491470,4ptp4l0-21swapper/110:25:401
134491470,4ptp4l0-21swapper/109:03:201
134491470,4ptp4l0-21swapper/108:53:301
134491470,4ptp4l0-21swapper/108:22:221
134491470,4ptp4l0-21swapper/107:32:201
134491470,4ptp4l0-21swapper/007:46:330
134491470,3ptp4l0-21swapper/109:24:391
134491460,4ptp4l0-21swapper/312:04:463
134491460,4ptp4l0-21swapper/307:47:443
134491460,4ptp4l0-21swapper/011:30:230
134491460,4ptp4l0-21swapper/009:00:170
134491460,4ptp4l0-21swapper/008:47:420
134491460,3ptp4l0-21swapper/212:35:542
134491460,3ptp4l0-21swapper/212:35:542
134491460,3ptp4l0-21swapper/212:21:002
134491460,3ptp4l0-21swapper/110:52:081
134491460,3ptp4l0-21swapper/110:12:391
134491460,12ptp4l24685-21fschecks_count09:55:183
12052994639,4cyclictest1943-21grep10:15:192
134491450,9ptp4l0-21swapper/211:07:382
134491450,3ptp4l0-21swapper/212:00:052
134491450,2ptp4l0-21swapper/309:40:453
134491440,9ptp4l0-21swapper/012:03:480
134491440,9ptp4l0-21swapper/010:53:320
134491440,4ptp4l21884-21apt-get08:40:132
134491440,4ptp4l0-21swapper/210:05:482
134491440,3ptp4l24661-21cpu12:15:140
134491440,3ptp4l0-21swapper/212:18:422
134491430,9ptp4l0-21swapper/208:18:342
134491430,9ptp4l0-21swapper/010:12:000
134491430,7ptp4l29701-21hddtemp_smartct12:25:181
134491430,5ptp4l0-21swapper/309:35:123
134491430,5ptp4l0-21swapper/307:20:113
134491430,4ptp4l0-21swapper/210:50:302
134491430,3ptp4l22202-21apt-get11:00:122
134491430,3ptp4l0-21swapper/112:12:001
134491430,3ptp4l0-21swapper/111:20:261
134491430,3ptp4l0-21swapper/008:25:070
134491420,9ptp4l0-21swapper/209:03:082
134491420,9ptp4l0-21swapper/207:37:562
134491420,6ptp4l0-21swapper/310:20:223
134491420,4ptp4l12084-21apt-get07:10:120
134491420,4ptp4l0-21swapper/012:30:160
134491420,3ptp4l0-21swapper/109:34:171
134491420,1ptp4l0-21swapper/011:22:540
12053994237,3cyclictest41-21ksoftirqd/311:40:003
12053994237,3cyclictest41-21ksoftirqd/311:40:003
12052994237,3cyclictest33-21ksoftirqd/212:00:002
12050994237,3cyclictest9-21ksoftirqd/011:00:000
134491410,9ptp4l0-21swapper/209:50:382
134491410,9ptp4l0-21swapper/209:35:112
134491410,9ptp4l0-21swapper/208:02:562
134491410,9ptp4l0-21swapper/208:02:562
134491410,8ptp4l0-21swapper/208:12:242
134491410,5ptp4l24326-21diskstats07:35:163
134491410,5ptp4l0-21swapper/310:40:243
134491410,4ptp4l31419-21apt-get11:20:123
134491410,4ptp4l30108-21meminfo10:05:200
134491410,4ptp4l29310-21df11:15:141
134491410,3ptp4l10666-21/usr/sbin/munin10:35:181
134491410,3ptp4l10350-21apt-get08:15:131
12050994135,3cyclictest9-21ksoftirqd/007:20:000
134491400,6ptp4l0-21swapper/010:30:100
134491400,5ptp4l31837-21sed12:30:153
134491400,5ptp4l313-1kworker/2:1H10:25:002
134491400,5ptp4l10121-21latency_hist09:25:003
134491400,5ptp4l0-21swapper/307:44:423
134491400,5ptp4l0-21swapper/210:10:182
134491400,5ptp4l0-21swapper/208:38:212
134491400,5ptp4l0-21swapper/109:35:151
134491400,5ptp4l0-21swapper/109:16:021
134491400,5ptp4l0-21swapper/009:20:240
134491400,4ptp4l32511-21meminfo12:30:202
134491400,4ptp4l30047-21meminfo11:15:190
134491400,4ptp4l27920-21meminfo12:20:200
134491400,4ptp4l27755-21memory11:10:241
134491400,4ptp4l27598-21meminfo10:00:220
134491400,4ptp4l2110-21ntp_states09:05:231
134491400,4ptp4l19874-21diskstats08:35:151
134491400,4ptp4l1986-21df_inode12:35:151
134491400,4ptp4l1986-21df_inode12:35:151
134491400,4ptp4l16011-21iostat11:55:201
134491400,4ptp4l0-21swapper/211:18:462
134491400,4ptp4l0-21swapper/209:15:382
134491400,4ptp4l0-21swapper/207:43:332
134491400,4ptp4l0-21swapper/011:52:550
134491400,4ptp4l0-21swapper/011:11:240
134491400,4ptp4l0-21swapper/011:00:250
134491400,4ptp4l0-21swapper/007:52:560
134491400,3ptp4l28775-21apt-get08:55:131
134491400,3ptp4l1530-21apt-get11:25:121
134491400,3ptp4l10850-21apt-get11:45:150
134491400,3ptp4l0-21swapper/110:44:491
1205299400,37cyclictest8956-21irqrtprio10:30:182
12050994035,3cyclictest32554-21kworker/0:209:27:420
134491390,5ptp4l7815-21sed11:35:281
134491390,5ptp4l7815-21sed11:35:281
134491390,5ptp4l24520-21cat07:35:190
134491390,5ptp4l0-21swapper/211:20:122
134491390,5ptp4l0-21swapper/209:21:282
134491390,5ptp4l0-21swapper/107:15:251
134491390,5ptp4l0-21swapper/010:49:220
134491390,4ptp4l6990-21basename09:15:250
134491390,4ptp4l6037-21fschecks_count09:15:163
134491390,4ptp4l30462-21sshd08:55:310
134491390,4ptp4l22014-21sed07:30:163
134491390,4ptp4l0-21swapper/312:25:153
134491390,4ptp4l0-21swapper/312:15:143
134491390,4ptp4l0-21swapper/311:30:273
134491390,4ptp4l0-21swapper/310:50:243
134491390,4ptp4l0-21swapper/310:47:483
134491390,4ptp4l0-21swapper/308:49:183
134491390,4ptp4l0-21swapper/308:05:163
134491390,4ptp4l0-21swapper/211:52:232
134491390,4ptp4l0-21swapper/211:47:582
134491390,4ptp4l0-21swapper/211:36:082
134491390,4ptp4l0-21swapper/211:36:082
134491390,4ptp4l0-21swapper/211:31:522
134491390,4ptp4l0-21swapper/211:25:372
134491390,4ptp4l0-21swapper/210:48:202
134491390,4ptp4l0-21swapper/210:40:172
134491390,4ptp4l0-21swapper/210:37:522
134491390,4ptp4l0-21swapper/210:00:152
134491390,4ptp4l0-21swapper/209:32:432
134491390,4ptp4l0-21swapper/209:12:432
134491390,4ptp4l0-21swapper/209:05:142
134491390,4ptp4l0-21swapper/208:48:172
134491390,4ptp4l0-21swapper/207:51:062
134491390,4ptp4l0-21swapper/207:45:382
134491390,4ptp4l0-21swapper/207:34:412
134491390,4ptp4l0-21swapper/207:25:372
134491390,4ptp4l0-21swapper/112:30:121
134491390,4ptp4l0-21swapper/111:45:131
134491390,4ptp4l0-21swapper/108:40:211
134491390,4ptp4l0-21swapper/011:38:290
134491390,4ptp4l0-21swapper/011:38:290
134491390,4ptp4l0-21swapper/009:55:140
134491390,4ptp4l0-21swapper/009:50:160
134491390,4ptp4l0-21swapper/009:43:250
134491390,4ptp4l0-21swapper/009:35:230
134491390,4ptp4l0-21swapper/008:53:120
134491390,4ptp4l0-21swapper/008:40:290
134491390,4ptp4l0-21swapper/008:30:280
134491390,4ptp4l0-21swapper/007:55:180
134491390,3ptp4l9671-21ntp_states11:40:240
134491390,3ptp4l3298-21ls12:35:280
134491390,3ptp4l3298-21ls12:35:280
134491390,3ptp4l31458-21apt-get10:10:143
134491390,3ptp4l29840-21iostat_ios12:25:192
134491390,3ptp4l22153-21hddtemp_smartct07:30:190
134491390,3ptp4l16096-21ntp_states08:25:241
134491390,3ptp4l1051-21apt-get11:25:030
134491390,3ptp4l0-21swapper/208:21:362
12053993933,3cyclictest41-21ksoftirqd/308:12:193
12052993934,3cyclictest33-21ksoftirqd/210:00:002
134491380,5ptp4l22050-21sed09:50:153
134491380,5ptp4l0-21swapper/009:30:270
134491380,4ptp4l20626-21iostat12:05:170
134491380,4ptp4l0-21swapper/312:35:373
134491380,4ptp4l0-21swapper/312:35:373
134491380,4ptp4l0-21swapper/312:21:413
134491380,4ptp4l0-21swapper/311:50:343
134491380,4ptp4l0-21swapper/311:45:233
134491380,4ptp4l0-21swapper/310:25:283
134491380,4ptp4l0-21swapper/310:15:223
134491380,4ptp4l0-21swapper/310:04:593
134491380,4ptp4l0-21swapper/309:25:363
134491380,4ptp4l0-21swapper/308:57:183
134491380,4ptp4l0-21swapper/308:42:123
134491380,4ptp4l0-21swapper/308:25:363
134491380,4ptp4l0-21swapper/308:21:383
134491380,4ptp4l0-21swapper/308:20:003
134491380,4ptp4l0-21swapper/307:15:213
134491380,4ptp4l0-21swapper/307:13:173
134491380,4ptp4l0-21swapper/212:13:362
134491380,4ptp4l0-21swapper/212:06:542
134491380,4ptp4l0-21swapper/211:40:442
134491380,4ptp4l0-21swapper/211:12:342
134491380,4ptp4l0-21swapper/210:58:582
134491380,4ptp4l0-21swapper/208:52:122
134491380,4ptp4l0-21swapper/208:26:102
134491380,4ptp4l0-21swapper/208:05:082
134491380,4ptp4l0-21swapper/207:56:282
134491380,4ptp4l0-21swapper/112:20:221
134491380,4ptp4l0-21swapper/112:15:171
134491380,4ptp4l0-21swapper/111:05:521
134491380,4ptp4l0-21swapper/110:55:121
134491380,4ptp4l0-21swapper/110:20:301
134491380,4ptp4l0-21swapper/109:50:501
134491380,4ptp4l0-21swapper/109:10:301
134491380,4ptp4l0-21swapper/108:06:321
134491380,4ptp4l0-21swapper/107:20:151
134491380,4ptp4l0-21swapper/011:05:190
134491380,4ptp4l0-21swapper/010:40:120
134491380,4ptp4l0-21swapper/009:06:320
134491380,4ptp4l0-21swapper/007:40:280
134491380,3ptp4l6405-21/usr/sbin/munin10:25:160
134491380,3ptp4l20329-21ntp_states07:25:230
134491380,3ptp4l19523-21apt-get09:45:121
134491380,3ptp4l0-21swapper/309:04:063
134491380,3ptp4l0-21swapper/209:40:402
134491380,3ptp4l0-21swapper/207:10:032
134491380,3ptp4l0-21swapper/109:28:191
134491370,4ptp4l0-21swapper/311:57:373
134491370,4ptp4l0-21swapper/311:05:503
134491370,4ptp4l0-21swapper/311:02:093
134491370,4ptp4l0-21swapper/309:10:043
134491370,4ptp4l0-21swapper/308:36:343
134491370,4ptp4l0-21swapper/307:51:073
134491370,4ptp4l0-21swapper/208:57:162
134491370,4ptp4l0-21swapper/110:45:201
134491370,4ptp4l0-21swapper/107:10:011
134491370,3ptp4l0-21swapper/311:16:133
134491370,3ptp4l0-21swapper/310:36:453
134491370,3ptp4l0-21swapper/310:30:423
134491370,3ptp4l0-21swapper/310:05:223
134491370,3ptp4l0-21swapper/308:52:523
134491370,3ptp4l0-21swapper/308:04:573
134491370,3ptp4l0-21swapper/308:04:573
134491370,3ptp4l0-21swapper/209:47:022
134491370,3ptp4l0-21swapper/012:10:270
134491370,2ptp4l13244-21iostat08:20:170
134491360,4ptp4l0-21swapper/309:46:183
134491360,4ptp4l0-21swapper/307:58:363
134491360,3ptp4l1335-21fschecks_count09:05:153
134491360,3ptp4l0-21swapper/307:25:573
134491350,3ptp4l0-21swapper/311:40:013
134491350,3ptp4l0-21swapper/310:55:593
134491340,3ptp4l0-21swapper/312:14:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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