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2026-08-17 - 04:58
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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 Mon Aug 17, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3080621500,5sleep11423399cyclictest19:45:181
3080621500,5sleep11423399cyclictest19:45:181
14234996536,3cyclictest33-21ksoftirqd/221:20:002
134491610,4ptp4l22248-21iostat_ios22:55:210
134491590,5ptp4l0-21swapper/200:05:252
134491590,5ptp4l0-21swapper/200:05:252
134491590,4ptp4l0-21swapper/220:54:112
134491590,4ptp4l0-21swapper/119:52:391
134491590,4ptp4l0-21swapper/022:50:180
240852580,5sleep20-21swapper/221:50:152
134491580,4ptp4l0-21swapper/121:35:201
134491570,4ptp4l0-21swapper/223:33:342
134491570,3ptp4l6091-21if_enp4s022:20:182
134491570,3ptp4l0-21swapper/019:45:300
134491570,3ptp4l0-21swapper/019:45:300
134491560,4ptp4l0-21swapper/022:00:180
14234995526,4cyclictest33-21ksoftirqd/221:57:452
14234995526,3cyclictest33-21ksoftirqd/222:50:222
14234995519,8cyclictest33-21ksoftirqd/200:00:342
134491550,3ptp4l0-21swapper/220:45:142
134491550,3ptp4l0-21swapper/200:35:042
134491550,3ptp4l0-21swapper/121:25:181
134491540,4ptp4l0-21swapper/220:43:282
14234995320,6cyclictest33-21ksoftirqd/221:35:242
14234995319,8cyclictest33-21ksoftirqd/222:45:242
134491530,3ptp4l0-21swapper/223:27:342
134491530,11ptp4l0-21swapper/121:45:441
14234995222,4cyclictest33-21ksoftirqd/223:52:292
14234995222,4cyclictest33-21ksoftirqd/219:10:212
14234995221,3cyclictest33-21ksoftirqd/219:29:252
14234995220,5cyclictest33-21ksoftirqd/221:25:262
14234995218,4cyclictest33-21ksoftirqd/221:05:162
134491520,4ptp4l0-21swapper/120:06:221
134491520,11ptp4l12834-21/usr/sbin/munin19:05:193
14234995122,7cyclictest33-21ksoftirqd/223:43:442
14234995121,7cyclictest33-21ksoftirqd/200:10:442
14234995121,7cyclictest33-21ksoftirqd/200:10:442
14234995121,6cyclictest33-21ksoftirqd/220:19:522
14234995118,6cyclictest33-21ksoftirqd/220:10:012
134491510,5ptp4l1423299cyclictest23:30:290
134491510,5ptp4l1423299cyclictest23:08:230
134491510,4ptp4l0-21swapper/323:05:273
134491510,4ptp4l0-21swapper/223:18:282
134491510,4ptp4l0-21swapper/223:04:282
134491510,3ptp4l0-21swapper/219:52:362
134491510,3ptp4l0-21swapper/122:57:551
14234995019,3cyclictest33-21ksoftirqd/200:26:552
14234995012,8cyclictest33-21ksoftirqd/222:07:272
14234995012,6cyclictest33-21ksoftirqd/219:45:002
134491500,4ptp4l0-21swapper/323:38:163
134491500,4ptp4l0-21swapper/222:40:302
134491500,4ptp4l0-21swapper/221:43:142
134491500,3ptp4l0-21swapper/200:30:252
134491500,3ptp4l0-21swapper/100:28:191
134491500,11ptp4l0-21swapper/120:23:241
43492490,5sleep10-21swapper/119:55:291
1423499498,8cyclictest33-21ksoftirqd/219:39:272
14234994923,6cyclictest33-21ksoftirqd/219:32:402
14234994918,5cyclictest33-21ksoftirqd/219:15:232
14234994918,3cyclictest33-21ksoftirqd/219:20:202
14234994916,8cyclictest33-21ksoftirqd/221:23:122
14234994916,3cyclictest33-21ksoftirqd/220:30:182
14234994915,4cyclictest33-21ksoftirqd/220:10:202
14234994915,4cyclictest33-21ksoftirqd/220:00:192
14234994911,8cyclictest33-21ksoftirqd/221:02:522
134491490,4ptp4l0-21swapper/222:19:122
134491490,4ptp4l0-21swapper/221:33:202
134491490,4ptp4l0-21swapper/220:29:062
134491490,4ptp4l0-21swapper/023:20:470
14235994842,3cyclictest5325-21turbostat.cron22:20:003
14234994820,7cyclictest33-21ksoftirqd/200:19:142
14234994818,7cyclictest33-21ksoftirqd/219:58:302
14234994817,4cyclictest33-21ksoftirqd/222:35:162
14234994817,3cyclictest33-21ksoftirqd/223:06:542
134491480,4ptp4l0-21swapper/220:24:122
134491480,3ptp4l0-21swapper/121:22:131
134491480,3ptp4l0-21swapper/121:07:401
134491480,2ptp4l0-21swapper/121:56:331
134491480,12ptp4l0-21swapper/121:15:141
14234994711,3cyclictest33-21ksoftirqd/223:10:152
134491470,4ptp4l0-21swapper/223:49:352
134491470,3ptp4l0-21swapper/322:55:283
134491460,5ptp4l0-21swapper/019:10:010
134491460,4ptp4l0-21swapper/323:56:193
134491460,4ptp4l0-21swapper/323:30:273
134491460,4ptp4l0-21swapper/322:45:103
134491460,4ptp4l0-21swapper/321:58:443
134491460,4ptp4l0-21swapper/023:53:280
134491460,4ptp4l0-21swapper/023:02:250
134491460,3ptp4l0-21swapper/320:27:043
14234994518,3cyclictest33-21ksoftirqd/222:10:192
1423499451,3cyclictest7966-21kworker/2:019:46:232
1423499451,3cyclictest7966-21kworker/2:019:46:232
134491450,6ptp4l0-21swapper/219:05:142
134491450,4ptp4l0-21swapper/119:18:141
134491450,3ptp4l0-21swapper/123:44:341
134491450,11ptp4l0-21swapper/223:20:252
134491450,11ptp4l0-21swapper/221:10:182
134491450,11ptp4l0-21swapper/221:10:172
134491450,11ptp4l0-21swapper/023:15:210
14234994438,3cyclictest33-21ksoftirqd/220:35:192
134491440,9ptp4l0-21swapper/222:57:382
134491440,6ptp4l25015-21ntp_states20:40:233
134491440,4ptp4l0-21swapper/100:37:511
134491440,3ptp4l0-21swapper/123:22:311
134491440,3ptp4l0-21swapper/120:36:131
134491440,2ptp4l0-21swapper/120:58:081
134491440,10ptp4l0-21swapper/122:12:201
1423499438,4cyclictest33-21ksoftirqd/223:59:292
134491430,9ptp4l0-21swapper/122:31:221
134491430,7ptp4l9765-21grep21:20:000
134491430,5ptp4l25818-21apt-get19:35:113
134491430,5ptp4l0-21swapper/100:05:231
134491430,5ptp4l0-21swapper/100:05:231
134491430,4ptp4l10168-21apt-get22:30:142
134491430,4ptp4l0-21swapper/021:35:580
134491430,3ptp4l0-21swapper/000:18:210
134691420,11getstats0-21swapper/119:25:291
134691420,10getstats0-21swapper/122:08:141
134691420,10getstats0-21swapper/121:30:341
134491420,5ptp4l31018-21apt-get00:25:023
134491420,5ptp4l0-21swapper/223:35:292
134491420,5ptp4l0-21swapper/120:00:221
134491420,4ptp4l8925-21ntp_states23:35:251
134491420,4ptp4l30937-21apt-get23:15:143
134491420,4ptp4l24840-21ls20:40:200
134491420,4ptp4l20300-21ntp_states21:40:220
134491420,4ptp4l13967-21ls22:35:280
134491420,3ptp4l0-21swapper/321:29:123
134491420,3ptp4l0-21swapper/120:10:211
134491420,10ptp4l0-21swapper/122:40:341
14234994136,3cyclictest30535-21cron22:05:002
134691410,10getstats0-21swapper/123:01:061
134691410,10getstats0-21swapper/119:23:201
134691410,10getstats0-21swapper/119:12:431
134691410,10getstats0-21swapper/100:22:511
134691410,10getstats0-21swapper/100:15:451
134491410,8ptp4l0-21swapper/222:26:262
134491410,5ptp4l0-21swapper/322:20:163
134491410,5ptp4l0-21swapper/200:23:512
134491410,5ptp4l0-21swapper/120:45:121
134491410,5ptp4l0-21swapper/100:30:221
134491410,5ptp4l0-21swapper/000:35:140
134491410,4ptp4l3520-21df_inode23:25:190
134491410,4ptp4l31739-21meminfo20:55:210
134491410,4ptp4l17575-21ls19:15:200
134491410,4ptp4l17448-21hddtemp_smartct23:55:180
134491410,4ptp4l15839-21ntp_states23:50:253
134491410,4ptp4l10276-21df_inode21:20:150
134491410,4ptp4l0-21swapper/323:45:343
134491410,4ptp4l0-21swapper/320:20:133
134491410,4ptp4l0-21swapper/022:20:110
134491410,3ptp4l9221-21ls21:15:273
14234994035,3cyclictest33-21ksoftirqd/221:45:212
134691400,10getstats0-21swapper/100:12:561
134691400,10getstats0-21swapper/100:12:561
134491400,8ptp4l0-21swapper/000:01:500
134491400,5ptp4l0-21swapper/323:40:173
134491400,5ptp4l0-21swapper/021:05:190
134491400,5ptp4l0-21swapper/019:25:000
134491400,5ptp4l0-21swapper/019:09:130
134491400,5ptp4l0-21swapper/000:06:410
134491400,5ptp4l0-21swapper/000:06:400
134491400,4ptp4l32726-21/usr/sbin/munin19:50:110
134491400,4ptp4l30436-21apt-get19:45:143
134491400,4ptp4l30436-21apt-get19:45:143
134491400,4ptp4l29606-21ntp_states22:00:251
134491400,4ptp4l19487-21df_inode21:40:131
134491400,4ptp4l183-21jbd2/mmcblk1p1-23:10:211
134491400,4ptp4l15356-21iostat_ios22:40:180
134491400,4ptp4l0-21swapper/300:05:153
134491400,4ptp4l0-21swapper/300:05:153
134491400,4ptp4l0-21swapper/220:56:232
134491400,4ptp4l0-21swapper/122:45:241
134491400,4ptp4l0-21swapper/122:25:191
134491400,4ptp4l0-21swapper/121:10:221
134491400,4ptp4l0-21swapper/121:10:221
134491400,4ptp4l0-21swapper/023:44:590
134491400,4ptp4l0-21swapper/021:56:100
134491400,4ptp4l0-21swapper/021:25:160
134491400,4ptp4l0-21swapper/021:10:250
134491400,4ptp4l0-21swapper/021:10:240
134491400,4ptp4l0-21swapper/021:00:220
134491400,4ptp4l0-21swapper/020:46:500
134491400,4ptp4l0-21swapper/019:55:260
134491400,4ptp4l0-21swapper/019:35:490
134491400,4ptp4l0-21swapper/019:25:140
134491400,3ptp4l6548-21strings23:30:241
134491400,3ptp4l5569-21apt-get22:20:131
134491400,3ptp4l26124-21diskstats19:35:141
134491400,3ptp4l25501-21users21:50:290
134491400,3ptp4l2226-21irqstats00:30:220
134491400,3ptp4l18441-21ls23:55:291
14235993934,3cyclictest41-21ksoftirqd/320:10:013
14235993933,4cyclictest41-21ksoftirqd/319:55:013
14232993934,3cyclictest9-21ksoftirqd/020:10:010
134491390,5ptp4l31907-21ntp_states20:55:243
134491390,5ptp4l23205-21chrt21:45:583
134491390,5ptp4l15310-21sed20:20:190
134491390,5ptp4l0-21swapper/323:12:463
134491390,5ptp4l0-21swapper/322:06:123
134491390,5ptp4l0-21swapper/319:55:223
134491390,4ptp4l4154-21hddtemp_smartct00:35:183
134491390,4ptp4l23825-21df_inode19:30:140
134491390,4ptp4l22049-21iostat21:45:180
134491390,4ptp4l20542-21mailstats20:30:260
134491390,4ptp4l13586-21/usr/sbin/munin23:45:220
134491390,4ptp4l12742-21hddtemp_smartct20:15:160
134491390,4ptp4l0-21swapper/322:35:123
134491390,4ptp4l0-21swapper/321:50:173
134491390,4ptp4l0-21swapper/321:04:443
134491390,4ptp4l0-21swapper/320:50:263
134491390,4ptp4l0-21swapper/320:35:193
134491390,4ptp4l0-21swapper/320:10:033
134491390,4ptp4l0-21swapper/300:15:253
134491390,4ptp4l0-21swapper/121:50:141
134491390,4ptp4l0-21swapper/121:00:151
134491390,4ptp4l0-21swapper/120:50:501
134491390,4ptp4l0-21swapper/119:42:051
134491390,4ptp4l0-21swapper/119:30:171
134491390,4ptp4l0-21swapper/022:45:030
134491390,4ptp4l0-21swapper/022:10:280
134491390,4ptp4l0-21swapper/021:30:210
134491390,4ptp4l0-21swapper/020:53:160
134491390,4ptp4l0-21swapper/020:35:550
134491390,4ptp4l0-21swapper/020:29:520
134491390,4ptp4l0-21swapper/000:26:270
134491390,4ptp4l0-21swapper/000:24:260
134491390,4ptp4l0-21swapper/000:10:200
134491390,4ptp4l0-21swapper/000:10:200
134491390,3ptp4l21050-21users22:50:291
134491390,3ptp4l12888-21iostat_ios20:15:181
134491390,3ptp4l0-21swapper/323:00:273
134491390,3ptp4l0-21swapper/319:40:253
134491390,3ptp4l0-21swapper/020:10:260
134491380,4ptp4l4717-21ls23:25:313
134491380,4ptp4l31340-21cut23:15:181
134491380,4ptp4l0-21swapper/323:20:153
134491380,4ptp4l0-21swapper/322:41:313
134491380,4ptp4l0-21swapper/322:03:283
134491380,4ptp4l0-21swapper/321:39:403
134491380,4ptp4l0-21swapper/321:31:463
134491380,4ptp4l0-21swapper/321:20:243
134491380,4ptp4l0-21swapper/320:02:523
134491380,4ptp4l0-21swapper/319:30:193
134491380,4ptp4l0-21swapper/319:24:583
134491380,4ptp4l0-21swapper/300:33:573
134491380,4ptp4l0-21swapper/300:20:193
134491380,4ptp4l0-21swapper/300:00:523
134491380,4ptp4l0-21swapper/123:53:471
134491380,4ptp4l0-21swapper/123:46:381
134491380,4ptp4l0-21swapper/123:25:231
134491380,4ptp4l0-21swapper/123:05:151
134491380,4ptp4l0-21swapper/122:35:161
134491380,4ptp4l0-21swapper/122:15:361
134491380,4ptp4l0-21swapper/120:30:141
134491380,4ptp4l0-21swapper/120:27:161
134491380,4ptp4l0-21swapper/023:10:270
134491380,4ptp4l0-21swapper/022:30:130
134491380,4ptp4l0-21swapper/022:25:270
134491380,4ptp4l0-21swapper/022:15:040
134491380,4ptp4l0-21swapper/019:41:380
134491380,3ptp4l5782-21iostat_ios20:00:200
134491380,3ptp4l20735-21ls20:30:283
134491380,3ptp4l0-21swapper/023:37:590
46198370,4rtkit-daemon0-21swapper/319:15:483
134491370,4ptp4l0-21swapper/321:40:183
134491370,4ptp4l0-21swapper/320:45:223
134491370,4ptp4l0-21swapper/300:10:053
134491370,4ptp4l0-21swapper/300:10:053
134491370,4ptp4l0-21swapper/022:05:250
134491370,3ptp4l0-21swapper/322:50:213
134491370,3ptp4l0-21swapper/322:30:183
134491370,3ptp4l0-21swapper/322:27:593
134491370,3ptp4l0-21swapper/322:10:263
134491370,3ptp4l0-21swapper/120:44:261
134491370,3ptp4l0-21swapper/100:01:071
134491360,4ptp4l0-21swapper/319:25:243
134491360,3ptp4l0-21swapper/321:13:383
134491360,3ptp4l0-21swapper/321:13:383
134491360,3ptp4l0-21swapper/320:16:503
134491360,3ptp4l0-21swapper/319:11:143
134491350,3ptp4l0-21swapper/321:06:143
134491300,24ptp4l25-21ksoftirqd/119:09:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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