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2026-05-27 - 06:32
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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 Wed May 27, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
485599711,1cyclictest0-21swapper/220:00:282
134491620,4ptp4l0-21swapper/223:43:052
134491610,9ptp4l0-21swapper/223:23:222
134491600,4ptp4l0-21swapper/123:55:191
134491590,3ptp4l11848-21ls00:00:291
134491580,5ptp4l0-21swapper/219:09:282
134491580,4ptp4l0-21swapper/223:11:592
134491580,2ptp4l22493-21grep19:45:251
134491570,4ptp4l0-21swapper/100:07:591
134491570,3ptp4l9-21ksoftirqd/019:35:140
134491560,4ptp4l0-21swapper/119:55:201
134491560,3ptp4l0-21swapper/121:18:361
134491560,3ptp4l0-21swapper/019:20:170
134491550,4ptp4l0-21swapper/122:43:571
134491550,3ptp4l0-21swapper/123:05:481
134491550,3ptp4l0-21swapper/123:05:481
134491550,3ptp4l0-21swapper/119:13:581
134491540,3ptp4l0-21swapper/119:15:231
134491540,17ptp4l0-21swapper/122:57:051
134491530,3ptp4l0-21swapper/123:40:211
134491530,19ptp4l25-21ksoftirqd/120:14:051
134491520,4ptp4l0-21swapper/023:31:140
134491520,3ptp4l0-21swapper/119:28:221
134491510,4ptp4l0-21swapper/121:54:461
134491510,4ptp4l0-21swapper/120:25:561
134491510,3ptp4l0-21swapper/120:40:541
134491510,3ptp4l0-21swapper/120:34:151
134491510,3ptp4l0-21swapper/120:34:141
134491510,3ptp4l0-21swapper/019:52:350
134491500,4ptp4l0-21swapper/119:40:401
134491500,4ptp4l0-21swapper/100:35:531
134491500,3ptp4l0-21swapper/219:29:452
134491500,3ptp4l0-21swapper/121:34:201
134491490,4ptp4l485399cyclictest22:51:410
134491490,4ptp4l0-21swapper/119:07:161
134491490,3ptp4l0-21swapper/122:50:251
134491490,10ptp4l3641-21ntpq19:05:240
136412480,4sleep213646-21irqrtprio00:05:212
134491480,4ptp4l0-21swapper/121:26:221
134491480,4ptp4l0-21swapper/121:11:061
134491480,3ptp4l0-21swapper/123:32:551
134491480,3ptp4l0-21swapper/123:03:481
134491480,3ptp4l0-21swapper/120:52:401
134491480,3ptp4l0-21swapper/120:45:581
134491480,3ptp4l0-21swapper/119:30:231
134491480,3ptp4l0-21swapper/019:17:270
134491480,2ptp4l0-21swapper/022:38:000
134491470,4ptp4l0-21swapper/122:46:091
134491470,4ptp4l0-21swapper/019:59:250
134491470,3ptp4l121rcu_preempt21:05:270
134491470,3ptp4l0-21swapper/123:22:041
134491470,3ptp4l0-21swapper/122:27:301
134491460,3ptp4l0-21swapper/120:19:331
134491450,4ptp4l0-21swapper/121:24:341
134491450,4ptp4l0-21swapper/120:08:181
134491450,3ptp4l0-21swapper/123:15:281
134491450,10ptp4l0-21swapper/219:34:262
134491440,4ptp4l30408-21apt-get21:15:122
134491440,4ptp4l0-21swapper/123:38:561
134491440,4ptp4l0-21swapper/123:38:561
134491440,2ptp4l13444-21ls20:35:270
4856994337,3cyclictest5382-21fschecks_count20:20:163
134491430,5ptp4l0-21swapper/323:35:223
134491430,5ptp4l0-21swapper/323:35:223
134491430,4ptp4l9-21ksoftirqd/021:30:190
134491430,4ptp4l26274-21ls00:30:280
134491430,3ptp4l0-21swapper/023:42:290
134491420,9ptp4l0-21swapper/223:08:032
134491420,9ptp4l0-21swapper/223:08:022
134491420,5ptp4l22252-21iostat_ios23:15:180
134491420,5ptp4l0-21swapper/323:10:133
134491420,5ptp4l0-21swapper/321:30:153
134491420,4ptp4l713-21df21:20:150
134491420,4ptp4l27311-21users19:55:262
134491420,4ptp4l26597-21perl22:15:150
134491420,4ptp4l24672-21irqstats22:10:181
134491420,4ptp4l19235-21apt-get22:00:123
134491420,4ptp4l12473-21apt-get22:55:140
134491420,4ptp4l0-21swapper/120:20:541
134491420,4ptp4l0-21swapper/020:05:280
134491420,3ptp4l0-21swapper/123:45:251
134491420,3ptp4l0-21swapper/121:39:271
485599412,38cyclictest0-21swapper/220:45:192
134491410,7ptp4l0-21swapper/023:50:010
134491410,5ptp4l23983-21/usr/sbin/munin23:20:283
134491410,5ptp4l22260-21ntp_states20:55:232
134491410,5ptp4l0-21swapper/323:25:233
134491410,5ptp4l0-21swapper/319:10:023
134491410,5ptp4l0-21swapper/019:45:120
134491410,5ptp4l0-21swapper/019:10:150
134491410,4ptp4l6682-21meminfo23:50:211
134491410,4ptp4l5003-21sshd22:36:091
134491410,4ptp4l485399cyclictest21:56:370
134491410,4ptp4l28018-21meminfo00:35:210
134491410,4ptp4l24406-21ntp_states19:50:241
134491410,4ptp4l19693-21/usr/sbin/munin23:10:161
134491410,4ptp4l18054-21users19:35:291
134491410,4ptp4l16860-21df_inode20:45:140
134491410,4ptp4l13272-21memory21:45:201
134491410,4ptp4l1236-21iostat_ios22:30:170
134491410,4ptp4l0-21swapper/200:10:232
134491410,4ptp4l0-21swapper/021:51:240
134491410,4ptp4l0-21swapper/000:25:040
134491410,3ptp4l24775-21apt-get00:30:131
134491410,3ptp4l22017-21apt-get00:25:021
134491410,3ptp4l20983-21ls00:20:210
134491410,3ptp4l11312-21ls21:40:260
134491400,5ptp4l28929-21sed20:00:220
134491400,5ptp4l17739-21sed23:05:193
134491400,5ptp4l17739-21sed23:05:193
134491400,5ptp4l0-21swapper/321:50:263
134491400,5ptp4l0-21swapper/220:20:202
134491400,5ptp4l0-21swapper/122:30:141
134491400,5ptp4l0-21swapper/121:00:261
134491400,5ptp4l0-21swapper/120:55:181
134491400,5ptp4l0-21swapper/020:55:200
134491400,4ptp4l8596-21iostat23:55:180
134491400,4ptp4l5884-21df_inode22:40:150
134491400,4ptp4l31909-21ntp_states22:25:240
134491400,4ptp4l26026-21df21:05:141
134491400,4ptp4l23463-21apt-get21:00:132
134491400,4ptp4l22100-21iostat_ios22:05:161
134491400,4ptp4l15560-21df00:10:140
134491400,4ptp4l13290-21ls19:25:260
134491400,4ptp4l0-21swapper/323:40:163
134491400,4ptp4l0-21swapper/323:30:233
134491400,4ptp4l0-21swapper/323:20:013
134491400,4ptp4l0-21swapper/321:25:233
134491400,4ptp4l0-21swapper/223:45:582
134491400,4ptp4l0-21swapper/221:31:442
134491400,4ptp4l0-21swapper/221:24:062
134491400,4ptp4l0-21swapper/200:39:072
134491400,4ptp4l0-21swapper/200:27:512
134491400,4ptp4l0-21swapper/200:20:172
134491400,4ptp4l0-21swapper/122:15:211
134491400,4ptp4l0-21swapper/121:40:271
134491400,4ptp4l0-21swapper/120:35:201
134491400,4ptp4l0-21swapper/100:10:151
134491400,4ptp4l0-21swapper/021:25:280
134491400,4ptp4l0-21swapper/021:18:580
134491400,4ptp4l0-21swapper/020:40:120
134491400,4ptp4l0-21swapper/020:25:470
134491400,4ptp4l0-21swapper/019:40:180
134491400,3ptp4l632-21df_inode20:10:140
134491400,3ptp4l29919-21ls22:20:270
134491400,3ptp4l25300-21ls22:10:260
134491400,3ptp4l19801-21memory20:50:210
134491400,3ptp4l19593-21df23:10:150
134491400,3ptp4l18761-21ntp_states00:15:230
134491400,3ptp4l0-21swapper/120:00:501
134491400,3ptp4l0-21swapper/020:20:160
134491390,5ptp4l0-21swapper/321:45:023
134491390,5ptp4l0-21swapper/319:51:323
134491390,5ptp4l0-21swapper/223:25:332
134491390,5ptp4l0-21swapper/023:35:130
134491390,5ptp4l0-21swapper/023:35:130
134491390,5ptp4l0-21swapper/021:45:220
134491390,4ptp4l9771-21/usr/sbin/munin19:20:151
134491390,4ptp4l30212-21latency_hist21:15:002
134491390,4ptp4l24443-21grep23:20:160
134491390,4ptp4l0-21swapper/322:24:463
134491390,4ptp4l0-21swapper/320:50:143
134491390,4ptp4l0-21swapper/320:49:403
134491390,4ptp4l0-21swapper/320:19:043
134491390,4ptp4l0-21swapper/320:10:303
134491390,4ptp4l0-21swapper/319:45:033
134491390,4ptp4l0-21swapper/300:01:133
134491390,4ptp4l0-21swapper/223:31:152
134491390,4ptp4l0-21swapper/223:16:192
134491390,4ptp4l0-21swapper/222:37:452
134491390,4ptp4l0-21swapper/222:30:282
134491390,4ptp4l0-21swapper/222:10:152
134491390,4ptp4l0-21swapper/221:25:102
134491390,4ptp4l0-21swapper/221:05:222
134491390,4ptp4l0-21swapper/220:40:372
134491390,4ptp4l0-21swapper/220:31:472
134491390,4ptp4l0-21swapper/220:31:472
134491390,4ptp4l0-21swapper/220:27:142
134491390,4ptp4l0-21swapper/219:22:212
134491390,4ptp4l0-21swapper/219:17:542
134491390,4ptp4l0-21swapper/219:10:112
134491390,4ptp4l0-21swapper/200:32:142
134491390,4ptp4l0-21swapper/121:56:441
134491390,4ptp4l0-21swapper/023:09:000
134491390,4ptp4l0-21swapper/023:08:590
134491390,4ptp4l0-21swapper/023:00:160
134491390,4ptp4l0-21swapper/022:05:110
134491390,4ptp4l0-21swapper/021:00:140
134491390,4ptp4l0-21swapper/020:30:200
134491390,4ptp4l0-21swapper/020:30:200
134491390,3ptp4l4397-21users20:15:280
134491390,3ptp4l26657-21diskstats23:25:150
134491390,3ptp4l17953-21df_inode00:15:151
134491390,3ptp4l14626-21ls00:05:300
134491390,3ptp4l0-21swapper/222:46:442
134491390,3ptp4l0-21swapper/220:50:012
134491390,3ptp4l0-21swapper/021:37:380
134491390,2ptp4l28537-21hddtemp_smartct21:10:160
4856993817,4cyclictest0-21swapper/300:35:273
4855993832,4cyclictest33-21ksoftirqd/219:50:222
134491380,5ptp4l30543-21cpuspeed_turbos21:15:133
134491380,5ptp4l0-21swapper/323:46:003
134491380,5ptp4l0-21swapper/221:44:372
134491380,4ptp4l0-21swapper/323:02:323
134491380,4ptp4l0-21swapper/322:43:473
134491380,4ptp4l0-21swapper/322:17:383
134491380,4ptp4l0-21swapper/321:20:233
134491380,4ptp4l0-21swapper/321:00:103
134491380,4ptp4l0-21swapper/320:06:313
134491380,4ptp4l0-21swapper/320:03:163
134491380,4ptp4l0-21swapper/319:27:273
134491380,4ptp4l0-21swapper/319:21:373
134491380,4ptp4l0-21swapper/223:55:482
134491380,4ptp4l0-21swapper/223:37:272
134491380,4ptp4l0-21swapper/223:37:272
134491380,4ptp4l0-21swapper/222:57:022
134491380,4ptp4l0-21swapper/222:53:482
134491380,4ptp4l0-21swapper/222:26:072
134491380,4ptp4l0-21swapper/222:17:372
134491380,4ptp4l0-21swapper/222:05:312
134491380,4ptp4l0-21swapper/222:01:292
134491380,4ptp4l0-21swapper/221:46:412
134491380,4ptp4l0-21swapper/221:37:332
134491380,4ptp4l0-21swapper/220:15:532
134491380,4ptp4l0-21swapper/220:12:232
134491380,4ptp4l0-21swapper/220:06:492
134491380,4ptp4l0-21swapper/219:45:452
134491380,4ptp4l0-21swapper/219:43:482
134491380,4ptp4l0-21swapper/200:00:312
134491380,4ptp4l0-21swapper/122:00:191
134491380,4ptp4l0-21swapper/023:53:310
134491380,4ptp4l0-21swapper/000:03:030
134491380,3ptp4l0-21swapper/322:13:143
134491380,3ptp4l0-21swapper/320:55:023
134491380,3ptp4l0-21swapper/319:55:273
134491380,3ptp4l0-21swapper/223:54:302
134491380,3ptp4l0-21swapper/223:02:402
134491380,3ptp4l0-21swapper/221:51:302
134491380,3ptp4l0-21swapper/220:35:202
134491380,3ptp4l0-21swapper/200:15:192
134491380,3ptp4l0-21swapper/122:20:241
134491380,3ptp4l0-21swapper/022:01:470
134491380,3ptp4l0-21swapper/019:30:250
134491380,2ptp4l0-21swapper/123:25:141
4856993732,3cyclictest41-21ksoftirqd/321:55:103
134491370,4ptp4l0-21swapper/323:54:313
134491370,4ptp4l0-21swapper/322:32:303
134491370,4ptp4l0-21swapper/322:28:073
134491370,4ptp4l0-21swapper/321:44:143
134491370,4ptp4l0-21swapper/321:11:133
134491370,4ptp4l0-21swapper/321:08:303
134491370,4ptp4l0-21swapper/319:05:113
134491370,4ptp4l0-21swapper/300:05:393
134491370,4ptp4l0-21swapper/222:42:392
134491370,4ptp4l0-21swapper/221:56:342
134491370,4ptp4l0-21swapper/100:20:411
134491370,3ptp4l0-21swapper/322:55:503
134491370,3ptp4l0-21swapper/319:39:013
134491370,3ptp4l0-21swapper/022:45:150
134491360,4ptp4l0-21swapper/322:37:423
134491360,4ptp4l0-21swapper/300:14:113
134491360,3ptp4l0-21swapper/322:54:083
134491360,3ptp4l0-21swapper/322:05:093
134491360,3ptp4l0-21swapper/320:35:033
134491360,3ptp4l0-21swapper/222:23:052
134491350,4ptp4l0-21swapper/321:37:493
134491350,4ptp4l0-21swapper/300:27:253
134491350,3ptp4l0-21swapper/320:32:503
134491350,3ptp4l0-21swapper/320:32:503
134491350,3ptp4l0-21swapper/320:29:453
134491350,3ptp4l0-21swapper/219:37:122
4856993328,3cyclictest41-21ksoftirqd/300:16:213
134491330,4ptp4l0-21swapper/319:18:273
4856993226,4cyclictest41-21ksoftirqd/320:40:343
134491320,4ptp4l0-21swapper/322:47:413
134491300,4ptp4l0-21swapper/300:22:333
134491260,3ptp4l0-21swapper/300:32:373
134491230,4ptp4l0-21swapper/323:55:493
134491230,4ptp4l0-21swapper/319:40:433
134491230,4ptp4l0-21swapper/319:32:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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