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2026-03-27 - 23:12
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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 Fri Mar 27, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76862680,4sleep17690-21irqrtprio08:20:171
667699645,57cyclictest0-21swapper/209:06:492
320902620,4sleep032086-21awk08:04:590
134491610,4ptp4l0-21swapper/011:55:250
134491610,3ptp4l21468-21apt-get11:10:122
134491600,3ptp4l0-21swapper/111:45:191
134491590,5ptp4l0-21swapper/009:24:510
134491590,3ptp4l0-21swapper/012:01:190
134491580,5ptp4l0-21swapper/009:56:290
134491570,3ptp4l0-21swapper/210:05:262
134491570,3ptp4l0-21swapper/208:03:512
134491570,3ptp4l0-21swapper/111:25:151
134491570,3ptp4l0-21swapper/012:37:500
134491550,4ptp4l0-21swapper/311:20:453
134491550,3ptp4l0-21swapper/008:49:570
134491550,13ptp4l0-21swapper/211:30:192
134491540,5ptp4l0-21swapper/107:05:061
134491540,4ptp4l0-21swapper/012:05:150
134491540,3ptp4l0-21swapper/211:52:482
134491540,3ptp4l0-21swapper/110:10:301
34222530,4sleep30-21swapper/310:30:163
134491530,4ptp4l0-21swapper/212:10:402
134491530,4ptp4l0-21swapper/210:59:122
134491530,4ptp4l0-21swapper/208:35:462
134491530,3ptp4l0-21swapper/209:42:222
134491530,3ptp4l0-21swapper/208:05:152
134491530,3ptp4l0-21swapper/012:20:240
134491530,3ptp4l0-21swapper/011:15:280
134491530,3ptp4l0-21swapper/010:30:080
134491520,4ptp4l32005-21ntp_states11:30:223
134491520,4ptp4l0-21swapper/208:42:382
134491510,4ptp4l0-21swapper/207:48:162
134491510,4ptp4l0-21swapper/207:48:162
134491510,4ptp4l0-21swapper/011:47:380
134491510,4ptp4l0-21swapper/011:31:330
134491510,4ptp4l0-21swapper/011:10:100
134491510,3ptp4l0-21swapper/311:16:473
134491510,3ptp4l0-21swapper/010:20:250
134491500,4ptp4l0-21swapper/308:24:183
134491500,4ptp4l0-21swapper/007:41:110
134491500,3ptp4l0-21swapper/212:32:282
134491500,12ptp4l0-21swapper/211:45:302
134491490,4ptp4l0-21swapper/007:07:020
134491490,12ptp4l0-21swapper/309:45:193
134491480,4ptp4l0-21swapper/309:53:183
134491480,3ptp4l0-21swapper/009:49:390
134491480,3ptp4l0-21swapper/007:10:540
667699472,43cyclictest0-21swapper/209:52:392
134491470,4ptp4l0-21swapper/311:27:313
134491470,4ptp4l0-21swapper/007:37:170
134491470,3ptp4l0-21swapper/207:38:302
134491470,3ptp4l0-21swapper/007:33:270
667699462,42cyclictest0-21swapper/212:35:192
667699462,42cyclictest0-21swapper/207:28:282
134491460,4ptp4l0-21swapper/110:53:121
134491460,4ptp4l0-21swapper/010:55:140
134491460,3ptp4l0-21swapper/211:41:242
134491460,12ptp4l6507-21wc10:35:242
667499452,39cyclictest27553-21sshd09:04:280
134491450,5ptp4l0-21swapper/010:25:190
134491450,4ptp4l747-21apt-get11:35:130
134491450,4ptp4l0-21swapper/312:23:183
134491450,4ptp4l0-21swapper/110:34:231
134491450,3ptp4l0-21swapper/307:59:403
134491450,3ptp4l0-21swapper/211:25:372
134491450,3ptp4l0-21swapper/008:16:360
134491440,7ptp4l23670-21hddtemp_smartct08:55:160
134491440,4ptp4l4931-21apt-get09:25:111
134491440,4ptp4l0-21swapper/112:24:571
134491440,4ptp4l0-21swapper/107:36:351
134491440,4ptp4l0-21swapper/009:32:060
134491440,3ptp4l0-21swapper/109:14:301
134491440,3ptp4l0-21swapper/009:42:290
134491440,3ptp4l0-21swapper/009:18:010
134491440,10ptp4l0-21swapper/209:32:082
134491430,9ptp4l0-21swapper/210:13:212
134491430,4ptp4l15079-21ls09:45:201
134491430,4ptp4l0-21swapper/312:39:143
134491430,4ptp4l0-21swapper/208:15:022
134491430,4ptp4l0-21swapper/110:42:301
134491430,4ptp4l0-21swapper/109:34:361
134491430,4ptp4l0-21swapper/107:43:261
134491430,4ptp4l0-21swapper/012:25:380
134491430,3ptp4l600-21apt-get10:25:132
134491430,3ptp4l0-21swapper/108:00:251
6676994235,4cyclictest33-21ksoftirqd/210:45:162
134491420,9ptp4l0-21swapper/211:16:162
134491420,9ptp4l0-21swapper/210:43:182
134491420,6ptp4l0-21swapper/307:07:453
134491420,5ptp4l0-21swapper/311:10:123
134491420,5ptp4l0-21swapper/307:45:123
134491420,5ptp4l0-21swapper/307:45:123
134491420,4ptp4l6705-21apt-get07:10:131
134491420,4ptp4l3581-21meminfo09:20:172
134491420,4ptp4l3162-21apt-get11:40:123
134491420,4ptp4l27240-21ntp_states10:10:230
134491420,4ptp4l26085-21apt-get11:20:122
134491420,4ptp4l23684-21apt-get12:25:023
134491420,4ptp4l21060-21apt-get10:00:022
134491420,4ptp4l17987-21ntp_states11:00:210
134491420,4ptp4l11030-21ls09:35:282
134491420,4ptp4l0-21swapper/209:55:122
134491420,4ptp4l0-21swapper/207:51:132
134491420,4ptp4l0-21swapper/111:55:261
134491420,3ptp4l0-21swapper/012:33:260
667699412,37cyclictest0-21swapper/208:27:392
667599410,4cyclictest24596-21irqrtprio11:15:181
134491410,9ptp4l0-21swapper/210:16:052
134491410,5ptp4l495-21hddtemp_smartct08:05:160
134491410,5ptp4l0-21swapper/309:24:233
134491410,5ptp4l0-21swapper/307:40:173
134491410,5ptp4l0-21swapper/212:25:012
134491410,5ptp4l0-21swapper/210:50:232
134491410,5ptp4l0-21swapper/111:50:251
134491410,5ptp4l0-21swapper/012:10:220
134491410,5ptp4l0-21swapper/010:40:180
134491410,4ptp4l2318-21gnome-shell08:25:583
134491410,4ptp4l10480-21meminfo09:35:200
134491410,4ptp4l0-21swapper/212:03:452
134491410,4ptp4l0-21swapper/211:37:142
134491410,4ptp4l0-21swapper/208:10:272
134491410,4ptp4l0-21swapper/109:50:281
134491410,4ptp4l0-21swapper/108:40:181
134491410,4ptp4l0-21swapper/010:18:570
134491410,3ptp4l22093-21iostat10:00:170
134491410,3ptp4l21529-21apt-get10:00:121
134491410,2ptp4l101ktimersoftd/010:45:280
134491410,10ptp4l0-21swapper/207:40:362
6677994035,3cyclictest41-21ksoftirqd/310:30:003
6675994032,5cyclictest25-21ksoftirqd/108:15:001
134491400,8ptp4l0-21swapper/208:52:282
134491400,5ptp4l0-21swapper/311:05:203
134491400,5ptp4l0-21swapper/310:56:243
134491400,5ptp4l0-21swapper/112:30:151
134491400,5ptp4l0-21swapper/112:25:151
134491400,5ptp4l0-21swapper/112:10:271
134491400,5ptp4l0-21swapper/109:40:191
134491400,5ptp4l0-21swapper/008:10:260
134491400,4ptp4l8325-21iostat11:50:173
134491400,4ptp4l32052-21apt-get08:05:021
134491400,4ptp4l31319-21hddtemp_smartct11:30:151
134491400,4ptp4l29520-21apt-get08:00:023
134491400,4ptp4l25605-21hddtemp_smartct07:50:170
134491400,4ptp4l1208-21ntp_states08:05:233
134491400,4ptp4l11627-21diskstats07:20:140
134491400,4ptp4l0-21swapper/310:05:183
134491400,4ptp4l0-21swapper/310:00:023
134491400,4ptp4l0-21swapper/308:41:143
134491400,4ptp4l0-21swapper/209:04:042
134491400,4ptp4l0-21swapper/208:48:052
134491400,4ptp4l0-21swapper/012:16:120
134491400,4ptp4l0-21swapper/011:25:220
134491400,4ptp4l0-21swapper/011:23:410
134491400,4ptp4l0-21swapper/009:29:590
134491400,4ptp4l0-21swapper/009:13:580
134491400,3ptp4l9654-21irqrtprio07:15:193
134491400,3ptp4l20438-21ntp_states12:15:233
134491400,3ptp4l18646-21apt-get08:45:111
134491400,3ptp4l12699-21ls08:30:212
134491400,3ptp4l12375-21apt-get12:00:121
134491400,3ptp4l10060-21apt-get11:55:132
134491400,3ptp4l0-21swapper/209:12:302
6677993933,3cyclictest41-21ksoftirqd/308:15:173
134491390,5ptp4l0-21swapper/308:30:113
134491390,5ptp4l0-21swapper/210:31:272
134491390,5ptp4l0-21swapper/111:10:111
134491390,5ptp4l0-21swapper/110:35:111
134491390,4ptp4l22187-21processes08:50:233
134491390,4ptp4l17638-21users07:30:291
134491390,4ptp4l11889-21iostat_ios07:20:181
134491390,4ptp4l0-21swapper/312:34:373
134491390,4ptp4l0-21swapper/312:13:303
134491390,4ptp4l0-21swapper/312:05:233
134491390,4ptp4l0-21swapper/311:45:173
134491390,4ptp4l0-21swapper/311:38:093
134491390,4ptp4l0-21swapper/311:00:133
134491390,4ptp4l0-21swapper/309:55:153
134491390,4ptp4l0-21swapper/309:39:293
134491390,4ptp4l0-21swapper/308:46:123
134491390,4ptp4l0-21swapper/308:10:133
134491390,4ptp4l0-21swapper/212:05:472
134491390,4ptp4l0-21swapper/210:22:002
134491390,4ptp4l0-21swapper/209:45:242
134491390,4ptp4l0-21swapper/209:26:412
134491390,4ptp4l0-21swapper/209:17:422
134491390,4ptp4l0-21swapper/208:58:412
134491390,4ptp4l0-21swapper/208:22:302
134491390,4ptp4l0-21swapper/110:56:181
134491390,4ptp4l0-21swapper/110:20:231
134491390,4ptp4l0-21swapper/110:05:221
134491390,4ptp4l0-21swapper/108:15:171
134491390,4ptp4l0-21swapper/107:25:131
134491390,4ptp4l0-21swapper/011:51:160
134491390,4ptp4l0-21swapper/011:41:180
134491390,4ptp4l0-21swapper/011:06:380
134491390,4ptp4l0-21swapper/010:38:080
134491390,4ptp4l0-21swapper/009:50:210
134491390,4ptp4l0-21swapper/008:41:390
134491390,4ptp4l0-21swapper/008:38:010
134491390,4ptp4l0-21swapper/008:30:590
134491390,4ptp4l0-21swapper/008:26:580
134491390,4ptp4l0-21swapper/008:21:420
134491390,4ptp4l0-21swapper/007:27:000
134491390,3ptp4l9430-21hddtemp_smartct07:15:171
134491390,3ptp4l28486-21ls07:55:210
134491390,3ptp4l1065-21df_inode11:35:161
134491390,3ptp4l0-21swapper/307:35:553
134491390,3ptp4l0-21swapper/010:51:400
134491390,2ptp4l20365-21strings12:15:222
6677993833,3cyclictest41-21ksoftirqd/307:50:153
6676993833,3cyclictest33-21ksoftirqd/207:56:112
6675993832,4cyclictest25-21ksoftirqd/107:45:111
6675993832,4cyclictest25-21ksoftirqd/107:45:111
667599380,3cyclictest19176-21apt-get11:05:121
134691380,10getstats0-21swapper/308:36:523
134491380,5ptp4l0-21swapper/207:08:372
134491380,5ptp4l0-21swapper/112:35:261
134491380,4ptp4l0-21swapper/312:00:153
134491380,4ptp4l0-21swapper/310:45:343
134491380,4ptp4l0-21swapper/309:27:123
134491380,4ptp4l0-21swapper/309:15:103
134491380,4ptp4l0-21swapper/309:05:003
134491380,4ptp4l0-21swapper/309:00:203
134491380,4ptp4l0-21swapper/307:31:333
134491380,4ptp4l0-21swapper/212:20:272
134491380,4ptp4l0-21swapper/211:05:082
134491380,4ptp4l0-21swapper/211:00:102
134491380,4ptp4l0-21swapper/207:23:332
134491380,4ptp4l0-21swapper/112:16:411
134491380,4ptp4l0-21swapper/112:05:131
134491380,4ptp4l0-21swapper/111:41:191
134491380,4ptp4l0-21swapper/110:45:191
134491380,4ptp4l0-21swapper/109:35:171
134491380,4ptp4l0-21swapper/109:15:151
134491380,4ptp4l0-21swapper/109:05:251
134491380,4ptp4l0-21swapper/108:56:351
134491380,4ptp4l0-21swapper/108:38:471
134491380,4ptp4l0-21swapper/108:31:401
134491380,4ptp4l0-21swapper/107:52:061
134491380,4ptp4l0-21swapper/010:07:060
134491380,4ptp4l0-21swapper/008:50:140
134491380,4ptp4l0-21swapper/007:45:260
134491380,4ptp4l0-21swapper/007:45:260
134491380,3ptp4l25-21ksoftirqd/108:25:101
134491380,3ptp4l21239-21sed08:50:131
134491380,3ptp4l19237-21df_abs09:55:141
134491380,3ptp4l0-21swapper/310:55:003
134491380,3ptp4l0-21swapper/309:10:183
134491380,3ptp4l0-21swapper/207:15:182
134491380,3ptp4l0-21swapper/111:00:221
134491380,3ptp4l0-21swapper/110:15:141
134491380,3ptp4l0-21swapper/009:05:240
134491370,4ptp4l0-21swapper/310:41:423
134491370,4ptp4l0-21swapper/310:10:223
134491370,4ptp4l0-21swapper/309:40:283
134491370,4ptp4l0-21swapper/309:31:253
134491370,4ptp4l0-21swapper/308:55:583
134491370,4ptp4l0-21swapper/207:30:342
134491370,4ptp4l0-21swapper/207:10:562
134491370,4ptp4l0-21swapper/109:00:121
134491370,4ptp4l0-21swapper/107:55:431
134491370,4ptp4l0-21swapper/007:17:300
134491370,3ptp4l28411-21/usr/sbin/munin10:15:203
134491370,3ptp4l0-21swapper/311:55:123
134491370,3ptp4l0-21swapper/307:14:023
134491370,3ptp4l0-21swapper/111:20:361
134491370,3ptp4l0-21swapper/110:25:271
134491370,3ptp4l0-21swapper/109:20:111
134491360,4ptp4l0-21swapper/310:24:153
134491360,4ptp4l0-21swapper/307:27:273
134491360,4ptp4l0-21swapper/307:23:033
134491360,3ptp4l0-21swapper/310:35:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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