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2026-03-17 - 14:11
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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 Tue Mar 17, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491660,3ptp4l0-21swapper/122:55:221
134491620,5ptp4l0-21swapper/219:20:122
206172600,6sleep30-21swapper/320:40:173
134491590,4ptp4l0-21swapper/100:30:251
134491580,4ptp4l0-21swapper/100:25:151
134491570,3ptp4l0-21swapper/122:35:161
134491570,3ptp4l0-21swapper/019:21:270
134491560,3ptp4l0-21swapper/023:10:240
134491550,3ptp4l0-21swapper/223:55:202
134491550,3ptp4l0-21swapper/000:27:350
134491550,15ptp4l9674-21mailstats19:05:231
134491550,15ptp4l0-21swapper/021:15:250
134491540,3ptp4l0-21swapper/121:24:541
134491540,3ptp4l0-21swapper/119:31:071
134491540,2ptp4l0-21swapper/100:10:401
134491530,3ptp4l0-21swapper/121:25:211
134491530,3ptp4l0-21swapper/020:02:360
134491520,4ptp4l0-21swapper/323:30:293
134491520,4ptp4l0-21swapper/320:26:093
134491520,4ptp4l0-21swapper/020:31:220
134491520,3ptp4l0-21swapper/023:41:540
134491510,4ptp4l0-21swapper/319:39:563
134491510,4ptp4l0-21swapper/122:06:281
134491510,4ptp4l0-21swapper/120:54:121
134491510,3ptp4l0-21swapper/220:57:472
134491510,10ptp4l0-21swapper/321:45:153
134491500,4ptp4l0-21swapper/122:44:541
134491500,4ptp4l0-21swapper/121:33:351
134491500,4ptp4l0-21swapper/023:48:200
134491500,3ptp4l1067499cyclictest22:52:490
134491500,3ptp4l1067499cyclictest21:35:060
134491500,3ptp4l0-21swapper/100:01:321
134491500,3ptp4l0-21swapper/023:55:450
134491500,18ptp4l25-21ksoftirqd/122:29:081
134491500,12ptp4l0-21swapper/220:41:582
134491490,4ptp4l0-21swapper/320:46:403
134491490,4ptp4l0-21swapper/319:23:343
134491490,4ptp4l0-21swapper/300:16:593
134491490,4ptp4l0-21swapper/123:46:511
134491490,4ptp4l0-21swapper/121:12:511
134491490,4ptp4l0-21swapper/100:20:501
134491490,4ptp4l0-21swapper/021:24:250
134491490,3ptp4l0-21swapper/122:15:071
134491490,3ptp4l0-21swapper/020:55:100
134491490,3ptp4l0-21swapper/019:51:360
134491480,9ptp4l0-21swapper/221:05:222
134491480,4ptp4l1067499cyclictest22:43:380
134491480,4ptp4l0-21swapper/123:21:221
134491480,4ptp4l0-21swapper/122:14:081
134491480,4ptp4l0-21swapper/119:55:551
134491480,4ptp4l0-21swapper/023:53:420
134491480,3ptp4l0-21swapper/122:22:411
134491480,13ptp4l0-21swapper/221:55:162
134491480,11ptp4l0-21swapper/219:45:222
134491470,4ptp4l0-21swapper/123:19:031
134491470,4ptp4l0-21swapper/123:07:181
134491470,4ptp4l0-21swapper/122:50:361
134491470,4ptp4l0-21swapper/019:30:520
134491470,4ptp4l0-21swapper/000:35:410
134491470,3ptp4l1067499cyclictest20:22:110
134491470,3ptp4l0-21swapper/321:20:243
134491470,3ptp4l0-21swapper/223:35:342
134491470,10ptp4l0-21swapper/220:35:212
134491460,4ptp4l1067499cyclictest21:33:390
134491460,4ptp4l0-21swapper/320:34:103
134491460,4ptp4l0-21swapper/222:35:252
134491460,4ptp4l0-21swapper/200:22:312
134491460,4ptp4l0-21swapper/023:16:100
134491460,4ptp4l0-21swapper/000:02:030
134491460,3ptp4l1067499cyclictest22:04:140
134491460,3ptp4l0-21swapper/321:54:213
134491460,3ptp4l0-21swapper/321:00:163
134491460,3ptp4l0-21swapper/321:00:163
134491460,3ptp4l0-21swapper/221:30:162
134491460,3ptp4l0-21swapper/023:20:110
134491450,4ptp4l27189-21apt-get22:05:112
134491450,4ptp4l0-21swapper/300:27:573
134491450,3ptp4l0-21swapper/022:20:120
134491450,3ptp4l0-21swapper/021:50:510
134491450,3ptp4l0-21swapper/020:17:030
134491450,10ptp4l0-21swapper/200:07:002
134491450,10ptp4l0-21swapper/200:07:002
10675994540,3cyclictest20606-21latency_hist00:10:001
10675994540,3cyclictest20606-21latency_hist00:10:001
134491440,9ptp4l0-21swapper/221:48:082
134491440,9ptp4l0-21swapper/220:04:342
134491440,4ptp4l0-21swapper/021:10:170
134491440,4ptp4l0-21swapper/019:28:220
134491440,3ptp4l0-21swapper/322:36:343
134491440,3ptp4l0-21swapper/020:26:470
134491440,2ptp4l0-21swapper/123:14:571
1067699442,40cyclictest0-21swapper/200:10:392
134491430,9ptp4l0-21swapper/223:14:272
134491430,9ptp4l0-21swapper/222:46:212
134491430,9ptp4l0-21swapper/222:13:112
134491430,9ptp4l0-21swapper/020:39:560
134491430,8ptp4l0-21swapper/221:50:122
134491430,8ptp4l0-21swapper/020:42:220
134491430,7ptp4l0-21swapper/019:59:500
134491430,5ptp4l8575-21apt-get23:45:023
134491430,4ptp4l3737-21apt-get20:05:100
134491430,4ptp4l22268-21apt-get19:35:122
134491430,3ptp4l31786-21apt-get22:15:130
134491430,3ptp4l0-21swapper/122:02:371
134491430,3ptp4l0-21swapper/022:39:160
134491430,3ptp4l0-21swapper/019:14:460
134491430,10ptp4l0-21swapper/200:37:302
134491420,9ptp4l0-21swapper/223:51:572
134491420,9ptp4l0-21swapper/223:18:482
134491420,9ptp4l0-21swapper/200:02:132
134491420,8ptp4l0-21swapper/200:15:022
134491420,5ptp4l28127-21ls22:05:183
134491420,5ptp4l20812-21iostat_ios23:00:190
134491420,5ptp4l14432-21ntp_states21:35:233
134491420,5ptp4l14390-21ntp_states22:45:223
134491420,5ptp4l0-21swapper/320:20:123
134491420,5ptp4l0-21swapper/319:25:193
134491420,5ptp4l0-21swapper/123:30:131
134491420,5ptp4l0-21swapper/123:00:181
134491420,5ptp4l0-21swapper/022:25:130
134491420,4ptp4l3886-21apt-get21:15:102
134491420,4ptp4l22434-21apt-get20:45:122
134491420,4ptp4l1948-21df_inode23:30:150
134491420,4ptp4l15466-21apt-get20:30:112
134491420,4ptp4l13939-21diskstats23:55:143
134491420,4ptp4l13574-21iostat_ios19:15:181
134491420,4ptp4l12892-21apt-get21:35:012
134491420,4ptp4l0-21swapper/223:06:192
134491420,4ptp4l0-21swapper/021:05:120
134491420,3ptp4l0-21swapper/121:07:101
134491420,3ptp4l0-21swapper/120:55:161
134491420,2ptp4l121rcu_preempt21:26:540
134491420,10ptp4l0-21swapper/223:29:372
134691410,4getstats0-21swapper/321:42:293
134491410,9ptp4l0-21swapper/219:54:522
134491410,8ptp4l441-21in:imuxsock20:40:003
134491410,7ptp4l0-21swapper/121:54:291
134491410,6ptp4l4041-21/usr/sbin/munin22:25:172
134491410,5ptp4l25923-21python19:40:261
134491410,5ptp4l15557-21/usr/sbin/munin22:50:223
134491410,5ptp4l0-21swapper/221:40:222
134491410,5ptp4l0-21swapper/220:20:032
134491410,5ptp4l0-21swapper/120:05:101
134491410,5ptp4l0-21swapper/023:35:160
134491410,5ptp4l0-21swapper/023:25:110
134491410,5ptp4l0-21swapper/020:45:220
134491410,5ptp4l0-21swapper/019:35:210
134491410,4ptp4l29174-21apt-get19:50:133
134491410,4ptp4l25028-21df_inode20:50:140
134491410,4ptp4l21367-21iostat_ios00:10:180
134491410,4ptp4l0-21swapper/223:34:542
134491410,4ptp4l0-21swapper/221:00:202
134491410,4ptp4l0-21swapper/221:00:202
134491410,4ptp4l0-21swapper/023:05:080
134491410,3ptp4l8333-21apt-get20:15:141
134491410,3ptp4l30393-21memory23:20:203
10677994136,3cyclictest41-21ksoftirqd/300:15:003
3642400,4sleep30-21swapper/300:35:173
134491400,5ptp4l9601-21sendmail_mailqu20:15:263
134491400,5ptp4l0-21swapper/323:15:273
134491400,5ptp4l0-21swapper/322:15:163
134491400,5ptp4l0-21swapper/321:15:223
134491400,5ptp4l0-21swapper/222:55:482
134491400,5ptp4l0-21swapper/221:12:052
134491400,5ptp4l0-21swapper/200:28:102
134491400,5ptp4l0-21swapper/121:55:131
134491400,5ptp4l0-21swapper/120:35:281
134491400,5ptp4l0-21swapper/120:20:161
134491400,5ptp4l0-21swapper/022:57:060
134491400,5ptp4l0-21swapper/019:45:020
134491400,5ptp4l0-21swapper/019:40:220
134491400,5ptp4l0-21swapper/019:15:140
134491400,5ptp4l0-21swapper/019:05:230
134491400,4ptp4l20301-21fschecks_count19:30:173
134491400,4ptp4l0-21swapper/323:40:213
134491400,4ptp4l0-21swapper/323:00:363
134491400,4ptp4l0-21swapper/321:25:273
134491400,4ptp4l0-21swapper/321:05:183
134491400,4ptp4l0-21swapper/300:00:213
134491400,4ptp4l0-21swapper/223:47:332
134491400,4ptp4l0-21swapper/223:43:012
134491400,4ptp4l0-21swapper/222:40:182
134491400,4ptp4l0-21swapper/222:17:252
134491400,4ptp4l0-21swapper/220:54:182
134491400,4ptp4l0-21swapper/219:10:192
134491400,4ptp4l0-21swapper/122:32:561
134491400,4ptp4l0-21swapper/121:35:151
134491400,4ptp4l0-21swapper/120:27:281
134491400,4ptp4l0-21swapper/022:05:270
134491400,4ptp4l0-21swapper/021:01:310
134491400,4ptp4l0-21swapper/021:01:310
134491400,4ptp4l0-21swapper/000:22:350
134491400,4ptp4l0-21swapper/000:15:260
134491400,3ptp4l6335-21df_inode20:10:140
134491400,3ptp4l26878-21apt-get19:45:133
134491400,3ptp4l18924-21ls21:45:201
134491400,3ptp4l10705-21apt-get19:10:123
134491390,5ptp4l0-21swapper/323:35:133
134491390,5ptp4l0-21swapper/322:00:163
134491390,5ptp4l0-21swapper/321:55:163
134491390,5ptp4l0-21swapper/200:31:522
134491390,4ptp4l1067799cyclictest19:40:213
134491390,4ptp4l0-21swapper/323:10:203
134491390,4ptp4l0-21swapper/322:55:263
134491390,4ptp4l0-21swapper/322:30:273
134491390,4ptp4l0-21swapper/321:11:183
134491390,4ptp4l0-21swapper/320:55:133
134491390,4ptp4l0-21swapper/320:10:203
134491390,4ptp4l0-21swapper/320:00:283
134491390,4ptp4l0-21swapper/319:55:223
134491390,4ptp4l0-21swapper/300:05:213
134491390,4ptp4l0-21swapper/300:05:213
134491390,4ptp4l0-21swapper/223:02:082
134491390,4ptp4l0-21swapper/222:50:362
134491390,4ptp4l0-21swapper/222:04:292
134491390,4ptp4l0-21swapper/221:20:182
134491390,4ptp4l0-21swapper/220:18:402
134491390,4ptp4l0-21swapper/220:11:122
134491390,4ptp4l0-21swapper/220:08:182
134491390,4ptp4l0-21swapper/219:42:182
134491390,4ptp4l0-21swapper/219:30:242
134491390,4ptp4l0-21swapper/219:17:322
134491390,4ptp4l0-21swapper/123:29:381
134491390,4ptp4l0-21swapper/122:45:171
134491390,4ptp4l0-21swapper/121:40:191
134491390,4ptp4l0-21swapper/121:16:011
134491390,4ptp4l0-21swapper/120:45:231
134491390,4ptp4l0-21swapper/119:35:211
134491390,4ptp4l0-21swapper/100:35:231
134491390,4ptp4l0-21swapper/100:15:201
134491390,4ptp4l0-21swapper/022:30:140
134491390,4ptp4l0-21swapper/022:10:320
134491390,4ptp4l0-21swapper/000:30:210
134491390,3ptp4l6925-21iostat_ios22:30:182
134491390,3ptp4l15753-21hddtemp_smartct19:20:161
134491390,3ptp4l13641-21tune2fs22:45:150
134491390,3ptp4l11273-21iostat19:10:181
134491390,3ptp4l0-21swapper/223:21:072
134491390,3ptp4l0-21swapper/021:40:240
134491380,5ptp4l14021-21uname20:25:192
134491380,5ptp4l0-21swapper/123:50:121
134491380,4ptp4l0-21swapper/323:05:013
134491380,4ptp4l0-21swapper/322:25:213
134491380,4ptp4l0-21swapper/322:20:263
134491380,4ptp4l0-21swapper/320:50:273
134491380,4ptp4l0-21swapper/320:05:183
134491380,4ptp4l0-21swapper/319:15:423
134491380,4ptp4l0-21swapper/222:21:542
134491380,4ptp4l0-21swapper/219:26:242
134491380,4ptp4l0-21swapper/123:57:481
134491380,4ptp4l0-21swapper/123:40:331
134491380,4ptp4l0-21swapper/121:01:161
134491380,4ptp4l0-21swapper/121:01:161
134491380,4ptp4l0-21swapper/120:41:491
134491380,4ptp4l0-21swapper/120:30:151
134491380,4ptp4l0-21swapper/120:10:061
134491380,4ptp4l0-21swapper/120:00:021
134491380,4ptp4l0-21swapper/119:51:011
134491380,4ptp4l0-21swapper/119:48:161
134491380,4ptp4l0-21swapper/021:55:240
134491380,4ptp4l0-21swapper/021:45:080
134491380,3ptp4l4563-21/usr/sbin/munin23:35:191
134491380,3ptp4l0-21swapper/323:50:153
134491380,3ptp4l0-21swapper/321:30:153
134491380,3ptp4l0-21swapper/219:55:142
134491380,3ptp4l0-21swapper/119:25:091
134491370,4ptp4l0-21swapper/322:42:123
134491370,4ptp4l0-21swapper/300:20:163
134491370,3ptp4l0-21swapper/300:30:043
134491370,3ptp4l0-21swapper/221:25:162
134491370,3ptp4l0-21swapper/000:05:090
134491370,3ptp4l0-21swapper/000:05:090
134491360,3ptp4l0-21swapper/323:25:173
134491360,3ptp4l0-21swapper/322:10:163
85322213,11sleep28642-21df_inode19:05:142
46198200,13rtkit-daemon15899-21apache219:06:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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