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2026-04-10 - 01:54
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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 Thu Apr 09, 2026 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
799721220,5sleep10-21swapper/108:00:191
134491640,21ptp4l9276-21grep10:20:253
134491620,4ptp4l12428-21df_inode09:20:160
134491620,3ptp4l27861-21users09:50:240
126182620,3sleep20-21swapper/208:10:182
134491610,4ptp4l0-21swapper/111:20:161
134491600,4ptp4l22131-21ntp_states08:30:221
134491590,5ptp4l0-21swapper/111:35:291
134491590,4ptp4l0-21swapper/208:45:262
134491580,21ptp4l0-21swapper/207:05:192
134491570,4ptp4l0-21swapper/308:52:233
134491560,3ptp4l0-21swapper/310:50:263
134491560,3ptp4l0-21swapper/011:45:240
134491550,4ptp4l0-21swapper/212:37:052
134491550,4ptp4l0-21swapper/112:19:201
134491550,3ptp4l0-21swapper/208:00:022
134491550,3ptp4l0-21swapper/109:45:201
134491550,3ptp4l0-21swapper/008:10:250
134491540,4ptp4l15562-21sed08:15:260
134491530,4ptp4l8401-21cut11:30:181
134491530,4ptp4l0-21swapper/111:14:301
134491530,4ptp4l0-21swapper/007:29:500
134491530,3ptp4l0-21swapper/111:55:231
134491530,3ptp4l0-21swapper/108:35:281
134491530,3ptp4l0-21swapper/107:43:411
134491520,5ptp4l0-21swapper/307:05:583
134491520,5ptp4l0-21swapper/110:51:581
134491520,4ptp4l0-21swapper/309:15:213
134491520,4ptp4l0-21swapper/211:24:052
134491520,4ptp4l0-21swapper/007:15:260
134491520,4ptp4l0-21swapper/007:15:260
134491520,3ptp4l0-21swapper/308:59:063
134491520,3ptp4l0-21swapper/112:34:271
134491520,3ptp4l0-21swapper/112:24:021
134491510,4ptp4l0-21swapper/307:37:393
134491510,4ptp4l0-21swapper/111:04:141
134491510,3ptp4l0-21swapper/107:10:481
134491500,4ptp4l0-21swapper/212:12:102
134491500,4ptp4l0-21swapper/107:36:071
134491500,4ptp4l0-21swapper/007:35:080
134491500,3ptp4l11659-21taskset10:25:291
134491500,3ptp4l0-21swapper/208:20:282
134491500,11ptp4l0-21swapper/109:30:201
134491490,9ptp4l8098-21meminfo08:00:200
134491490,4ptp4l0-21swapper/311:50:323
134491490,4ptp4l0-21swapper/307:26:023
134491490,4ptp4l0-21swapper/112:28:481
134491490,4ptp4l0-21swapper/112:28:481
134491490,4ptp4l0-21swapper/111:09:241
134491490,4ptp4l0-21swapper/110:59:321
134491490,4ptp4l0-21swapper/009:11:270
134491490,13ptp4l25-21ksoftirqd/111:45:151
134491490,11ptp4l0-21swapper/007:53:520
134491480,8ptp4l0-21swapper/110:01:101
134491480,4ptp4l0-21swapper/312:21:363
134491480,4ptp4l0-21swapper/310:49:323
134491480,4ptp4l0-21swapper/309:00:493
134491480,4ptp4l0-21swapper/111:19:091
134491480,4ptp4l0-21swapper/110:34:511
134491480,4ptp4l0-21swapper/107:25:001
134491480,3ptp4l0-21swapper/109:54:301
134491470,4ptp4l0-21swapper/311:06:523
134491470,4ptp4l0-21swapper/110:44:351
134491470,4ptp4l0-21swapper/012:14:320
134491470,4ptp4l0-21swapper/010:25:120
134491470,3ptp4l0-21swapper/108:27:391
134491460,4ptp4l0-21swapper/108:48:361
134491460,4ptp4l0-21swapper/011:43:490
134491460,4ptp4l0-21swapper/011:31:330
134491460,4ptp4l0-21swapper/008:38:100
134491460,4ptp4l0-21swapper/008:06:350
134491460,3ptp4l0-21swapper/308:03:203
134491460,13ptp4l0-21swapper/109:14:591
134491460,12ptp4l33-21ksoftirqd/207:15:122
134491460,12ptp4l33-21ksoftirqd/207:15:122
134491450,4ptp4l0-21swapper/311:01:083
134491450,4ptp4l0-21swapper/111:29:081
134491450,4ptp4l0-21swapper/110:18:561
134491450,3ptp4l0-21swapper/110:05:121
134491450,11ptp4l0-21swapper/110:49:241
134491440,9ptp4l212-21systemd-journal10:20:000
134491440,5ptp4l9449-21apt-get08:05:133
134491440,5ptp4l0-21swapper/308:00:013
134491440,4ptp4l28130-21apt-get08:45:123
134491440,4ptp4l11745-21apt-get08:10:123
134491440,4ptp4l0-21swapper/109:37:131
134491440,3ptp4l10178-21cut08:05:191
134491440,3ptp4l0-21swapper/311:45:143
134491430,8ptp4l0-21swapper/007:42:260
134491430,5ptp4l31107-21df_inode10:00:130
134491430,4ptp4l30806-21apt-get10:00:123
134491430,4ptp4l1108-21hddtemp_smartct10:05:160
134491430,4ptp4l0-21swapper/208:55:092
134491430,4ptp4l0-21swapper/112:03:121
134491430,4ptp4l0-21swapper/108:21:121
134491430,3ptp4l0-21swapper/107:49:281
1617299420,2cyclictest134491ptp4l08:59:341
134491420,5ptp4l27253-21ls07:30:253
134491420,5ptp4l0-21swapper/310:15:193
134491420,4ptp4l24944-21meminfo12:05:180
134491420,4ptp4l2318-21gnome-shell12:27:590
134491420,4ptp4l2318-21gnome-shell12:27:590
134491420,4ptp4l1653-21meminfo10:05:203
134491420,4ptp4l0-21swapper/207:22:302
134491420,3ptp4l27608-21runrttasks07:33:312
134491420,3ptp4l0-21swapper/109:20:291
134491420,3ptp4l0-21swapper/011:50:220
134491410,5ptp4l18868-21apt-get11:55:040
134491410,5ptp4l0-21swapper/107:15:221
134491410,5ptp4l0-21swapper/107:15:221
134491410,5ptp4l0-21swapper/009:30:200
134491410,4ptp4l28488-21apt-get09:55:111
134491410,4ptp4l26855-21iostat12:10:171
134491410,4ptp4l25359-21apt-get08:40:021
134491410,4ptp4l17842-21ntp_states09:30:223
134491410,4ptp4l0-21swapper/211:58:042
134491410,4ptp4l0-21swapper/012:00:200
134491410,4ptp4l0-21swapper/010:50:150
134491410,3ptp4l0-21swapper/111:41:201
134491410,3ptp4l0-21swapper/011:25:020
16173994036,3cyclictest33-21ksoftirqd/212:20:002
134491400,5ptp4l31681-21ls11:10:203
134491400,5ptp4l26384-21df_abs11:00:152
134491400,5ptp4l0-21swapper/312:30:133
134491400,5ptp4l0-21swapper/311:35:193
134491400,5ptp4l0-21swapper/212:24:052
134491400,5ptp4l0-21swapper/209:37:132
134491400,5ptp4l0-21swapper/209:30:222
134491400,5ptp4l0-21swapper/208:30:112
134491400,5ptp4l0-21swapper/111:50:151
134491400,5ptp4l0-21swapper/012:30:180
134491400,4ptp4l6569-21ntp_states12:35:231
134491400,4ptp4l33-21ksoftirqd/207:40:002
134491400,4ptp4l30635-21df08:50:140
134491400,4ptp4l24508-21ntp_states07:25:211
134491400,4ptp4l21958-21iostat09:40:171
134491400,4ptp4l21583-21iostat_ios08:30:170
134491400,4ptp4l19231-21df09:35:140
134491400,4ptp4l0-21swapper/308:25:213
134491400,4ptp4l0-21swapper/209:44:592
134491400,4ptp4l0-21swapper/207:40:172
134491400,4ptp4l0-21swapper/012:15:260
134491400,4ptp4l0-21swapper/011:35:160
134491400,4ptp4l0-21swapper/011:15:200
134491400,4ptp4l0-21swapper/010:40:280
134491400,3ptp4l8516-21irqstats10:20:170
134491400,3ptp4l6403-21meminfo12:35:190
134491400,3ptp4l5262-21hddtemp_smartct07:55:160
134491400,3ptp4l32723-21apt-get08:55:130
134491400,3ptp4l31926-21ls08:50:272
134491400,3ptp4l20911-21users10:45:290
134491390,5ptp4l5058-21cron11:25:003
134491390,5ptp4l4986-21/usr/sbin/munin09:05:240
134491390,5ptp4l0-21swapper/309:20:253
134491390,5ptp4l0-21swapper/307:17:543
134491390,5ptp4l0-21swapper/307:17:543
134491390,5ptp4l0-21swapper/210:50:132
134491390,5ptp4l0-21swapper/110:36:011
134491390,5ptp4l0-21swapper/008:25:210
134491390,4ptp4l10016-21hddtemp_smartct09:15:151
134491390,4ptp4l0-21swapper/312:25:283
134491390,4ptp4l0-21swapper/312:25:283
134491390,4ptp4l0-21swapper/312:05:183
134491390,4ptp4l0-21swapper/311:30:193
134491390,4ptp4l0-21swapper/311:26:543
134491390,4ptp4l0-21swapper/310:35:233
134491390,4ptp4l0-21swapper/310:25:073
134491390,4ptp4l0-21swapper/309:35:193
134491390,4ptp4l0-21swapper/308:35:193
134491390,4ptp4l0-21swapper/307:40:063
134491390,4ptp4l0-21swapper/307:12:153
134491390,4ptp4l0-21swapper/212:33:082
134491390,4ptp4l0-21swapper/212:00:182
134491390,4ptp4l0-21swapper/211:15:072
134491390,4ptp4l0-21swapper/210:05:132
134491390,4ptp4l0-21swapper/207:12:272
134491390,4ptp4l0-21swapper/110:10:151
134491390,4ptp4l0-21swapper/109:09:591
134491390,4ptp4l0-21swapper/108:15:181
134491390,4ptp4l0-21swapper/107:50:281
134491390,4ptp4l0-21swapper/011:10:150
134491390,4ptp4l0-21swapper/011:05:150
134491390,4ptp4l0-21swapper/011:00:130
134491390,4ptp4l0-21swapper/010:36:160
134491390,4ptp4l0-21swapper/009:55:090
134491390,4ptp4l0-21swapper/008:45:540
134491390,4ptp4l0-21swapper/007:30:210
134491390,4ptp4l0-21swapper/007:23:120
134491390,4ptp4l0-21swapper/007:12:160
134491390,3ptp4l3267-21iostat_ios09:00:170
134491390,3ptp4l27330-21strings12:10:213
134491390,3ptp4l23756-21latency_hist12:05:013
134491390,3ptp4l16089-21users09:25:281
134491390,3ptp4l0-21swapper/208:05:162
134491390,3ptp4l0-21swapper/011:20:260
16173993833,3cyclictest33-21ksoftirqd/210:10:112
16173993832,4cyclictest33-21ksoftirqd/209:04:472
16171993832,3cyclictest9-21ksoftirqd/009:49:590
134491380,5ptp4l0-21swapper/312:35:263
134491380,5ptp4l0-21swapper/312:19:223
134491380,5ptp4l0-21swapper/311:57:443
134491380,5ptp4l0-21swapper/307:50:123
134491380,4ptp4l2210-21ls11:15:273
134491380,4ptp4l17692-21latency11:50:192
134491380,4ptp4l12212-21cat11:40:123
134491380,4ptp4l0-21swapper/310:55:183
134491380,4ptp4l0-21swapper/310:40:263
134491380,4ptp4l0-21swapper/310:30:113
134491380,4ptp4l0-21swapper/310:10:123
134491380,4ptp4l0-21swapper/309:47:463
134491380,4ptp4l0-21swapper/309:10:233
134491380,4ptp4l0-21swapper/309:05:223
134491380,4ptp4l0-21swapper/308:41:383
134491380,4ptp4l0-21swapper/308:30:233
134491380,4ptp4l0-21swapper/308:17:013
134491380,4ptp4l0-21swapper/307:47:323
134491380,4ptp4l0-21swapper/212:08:402
134491380,4ptp4l0-21swapper/211:47:032
134491380,4ptp4l0-21swapper/211:37:522
134491380,4ptp4l0-21swapper/211:12:472
134491380,4ptp4l0-21swapper/210:55:052
134491380,4ptp4l0-21swapper/210:37:062
134491380,4ptp4l0-21swapper/210:31:082
134491380,4ptp4l0-21swapper/210:04:592
134491380,4ptp4l0-21swapper/209:51:132
134491380,4ptp4l0-21swapper/209:47:352
134491380,4ptp4l0-21swapper/209:20:172
134491380,4ptp4l0-21swapper/209:11:262
134491380,4ptp4l0-21swapper/208:27:362
134491380,4ptp4l0-21swapper/207:51:122
134491380,4ptp4l0-21swapper/207:26:162
134491380,4ptp4l0-21swapper/110:21:511
134491380,4ptp4l0-21swapper/109:00:141
134491380,4ptp4l0-21swapper/108:13:591
134491380,4ptp4l0-21swapper/107:55:551
134491380,4ptp4l0-21swapper/107:31:011
134491380,4ptp4l0-21swapper/010:56:230
134491380,4ptp4l0-21swapper/010:30:240
134491380,4ptp4l0-21swapper/010:11:300
134491380,4ptp4l0-21swapper/009:40:120
134491380,4ptp4l0-21swapper/009:20:000
134491380,4ptp4l0-21swapper/008:20:190
134491380,4ptp4l0-21swapper/007:46:500
134491380,3ptp4l31126-21/usr/sbin/munin12:20:140
134491380,3ptp4l24949-21/usr/sbin/munin12:05:201
134491380,3ptp4l0-21swapper/307:20:233
134491380,3ptp4l0-21swapper/211:30:242
134491370,5ptp4l0-21swapper/108:50:181
134491370,4ptp4l0-21swapper/309:59:043
134491370,4ptp4l0-21swapper/309:50:573
134491370,4ptp4l0-21swapper/309:40:113
134491370,4ptp4l0-21swapper/309:25:183
134491370,4ptp4l0-21swapper/212:27:272
134491370,4ptp4l0-21swapper/212:27:262
134491370,4ptp4l0-21swapper/211:25:062
134491370,4ptp4l0-21swapper/211:06:272
134491370,4ptp4l0-21swapper/210:43:202
134491370,4ptp4l0-21swapper/210:26:242
134491370,4ptp4l0-21swapper/210:20:552
134491370,4ptp4l0-21swapper/209:55:132
134491370,4ptp4l0-21swapper/208:35:222
134491370,4ptp4l0-21swapper/207:56:082
134491370,4ptp4l0-21swapper/207:49:122
134491370,4ptp4l0-21swapper/009:25:190
134491370,4ptp4l0-21swapper/008:40:110
134491370,3ptp4l0-21swapper/211:40:282
134491360,4ptp4l0-21swapper/308:20:133
134491360,3ptp4l0-21swapper/210:45:402
134491360,3ptp4l0-21swapper/210:15:262
134491360,3ptp4l0-21swapper/209:15:222
134491360,3ptp4l0-21swapper/209:05:152
134491360,3ptp4l0-21swapper/208:16:532
134491350,4ptp4l0-21swapper/209:28:022
134491340,3ptp4l0-21swapper/208:41:472
158782165,6sleep00-21swapper/007:10:000
147662123,4sleep10-21swapper/107:05:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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