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2026-05-05 - 05:30
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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 May 05, 2026 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16452996932,10cyclictest33-21ksoftirqd/222:00:002
16452996829,8cyclictest33-21ksoftirqd/221:06:212
16452996733,5cyclictest33-21ksoftirqd/200:39:592
16452996732,9cyclictest33-21ksoftirqd/220:20:012
16452996729,8cyclictest33-21ksoftirqd/219:14:212
16452996630,8cyclictest33-21ksoftirqd/220:02:192
16452996626,8cyclictest33-21ksoftirqd/200:02:002
16452996532,9cyclictest33-21ksoftirqd/219:20:222
16452996526,8cyclictest33-21ksoftirqd/223:52:062
16452996526,8cyclictest33-21ksoftirqd/220:36:372
1645299652,34cyclictest0-21swapper/220:30:142
1645299652,33cyclictest0-21swapper/222:25:292
1645299643,35cyclictest0-21swapper/222:21:592
16452996432,6cyclictest33-21ksoftirqd/222:45:132
16452996430,4cyclictest33-21ksoftirqd/223:55:242
16452996426,8cyclictest33-21ksoftirqd/200:18:212
1645299642,34cyclictest0-21swapper/200:30:192
16452996329,9cyclictest33-21ksoftirqd/223:35:182
16452996327,3cyclictest33-21ksoftirqd/222:15:182
16452996325,8cyclictest33-21ksoftirqd/220:07:132
1645299632,33cyclictest0-21swapper/223:22:122
313942620,5sleep20-21swapper/220:50:182
16452996231,5cyclictest33-21ksoftirqd/219:30:182
16452996230,9cyclictest33-21ksoftirqd/223:05:292
16452996227,6cyclictest33-21ksoftirqd/200:10:142
16452996225,7cyclictest33-21ksoftirqd/221:33:212
16452996224,7cyclictest33-21ksoftirqd/223:30:482
1645299622,35cyclictest0-21swapper/221:15:182
1645299622,31cyclictest0-21swapper/222:50:152
16452996223,13cyclictest33-21ksoftirqd/222:44:422
16452996129,5cyclictest33-21ksoftirqd/219:35:142
16452996128,5cyclictest33-21ksoftirqd/223:25:172
16452996128,10cyclictest33-21ksoftirqd/223:10:252
16452996126,5cyclictest33-21ksoftirqd/222:35:002
16452996126,5cyclictest33-21ksoftirqd/222:35:002
134491610,4ptp4l0-21swapper/222:10:082
16452996033,7cyclictest33-21ksoftirqd/222:40:012
16452996028,9cyclictest33-21ksoftirqd/219:40:202
16452996026,6cyclictest33-21ksoftirqd/223:15:182
16452996026,5cyclictest33-21ksoftirqd/222:00:282
16452996024,12cyclictest33-21ksoftirqd/220:13:392
16452996023,7cyclictest33-21ksoftirqd/221:41:112
16452995929,6cyclictest33-21ksoftirqd/223:45:232
16452995927,6cyclictest33-21ksoftirqd/221:50:152
134491590,3ptp4l12846-21df21:20:150
16452995828,5cyclictest33-21ksoftirqd/221:45:222
16452995823,5cyclictest33-21ksoftirqd/219:45:182
16452995722,5cyclictest33-21ksoftirqd/223:00:272
134491570,4ptp4l0-21swapper/121:17:291
134491570,3ptp4l41-21ksoftirqd/321:50:173
134491570,3ptp4l0-21swapper/100:05:491
16452995626,4cyclictest33-21ksoftirqd/221:11:112
16452995623,5cyclictest33-21ksoftirqd/221:00:192
134491560,3ptp4l503-21ls00:20:171
134491560,3ptp4l0-21swapper/100:15:151
16452995528,6cyclictest33-21ksoftirqd/220:55:162
16452995528,6cyclictest33-21ksoftirqd/220:55:162
16452995524,3cyclictest33-21ksoftirqd/220:45:272
134491550,5ptp4l0-21swapper/119:08:301
134491550,5ptp4l0-21swapper/000:15:330
134491550,3ptp4l0-21swapper/319:12:343
134491550,3ptp4l0-21swapper/020:05:280
134491550,3ptp4l0-21swapper/019:20:250
16452995422,5cyclictest33-21ksoftirqd/220:40:182
134491540,3ptp4l21826-21sshd23:56:221
134491540,3ptp4l0-21swapper/022:30:150
134491540,3ptp4l0-21swapper/022:30:150
1645299532,6cyclictest33-21ksoftirqd/223:00:012
16452995323,4cyclictest33-21ksoftirqd/221:20:162
16452995321,3cyclictest33-21ksoftirqd/221:38:042
134491530,5ptp4l0-21swapper/120:05:121
134491530,3ptp4l0-21swapper/123:53:441
82602520,3sleep00-21swapper/022:20:140
192762520,4sleep10-21swapper/119:15:171
1645299523,6cyclictest33-21ksoftirqd/220:00:002
16452995220,8cyclictest33-21ksoftirqd/200:05:312
16452995215,10cyclictest33-21ksoftirqd/200:20:092
134491520,4ptp4l1645399cyclictest21:55:153
134491520,4ptp4l0-21swapper/122:36:191
134491520,4ptp4l0-21swapper/020:49:370
1645299517,3cyclictest33-21ksoftirqd/219:25:192
1645299515,5cyclictest33-21ksoftirqd/200:25:152
1645299512,5cyclictest33-21ksoftirqd/223:40:152
1645299511,11cyclictest33-21ksoftirqd/221:25:162
134491510,3ptp4l0-21swapper/122:20:591
134491510,3ptp4l0-21swapper/122:05:231
1645299505,3cyclictest33-21ksoftirqd/220:20:152
134491500,5ptp4l0-21swapper/020:14:540
134491500,4ptp4l0-21swapper/120:52:131
134491500,4ptp4l0-21swapper/022:46:350
134491500,4ptp4l0-21swapper/021:26:470
16452994939,3cyclictest33-21ksoftirqd/219:50:252
134491490,7ptp4l41-21ksoftirqd/323:10:143
134491490,5ptp4l0-21swapper/219:05:302
134491490,4ptp4l0-21swapper/119:57:251
134491490,4ptp4l0-21swapper/100:02:501
134491490,3ptp4l0-21swapper/121:30:001
1645299483,6cyclictest33-21ksoftirqd/220:25:152
134491480,4ptp4l0-21swapper/319:05:463
134491480,4ptp4l0-21swapper/121:45:001
134491480,4ptp4l0-21swapper/121:06:541
134491480,4ptp4l0-21swapper/120:58:571
134491480,4ptp4l0-21swapper/120:58:571
134491480,4ptp4l0-21swapper/120:02:511
134491480,4ptp4l0-21swapper/100:28:211
134491480,4ptp4l0-21swapper/023:42:380
134491480,4ptp4l0-21swapper/023:14:370
134491480,4ptp4l0-21swapper/022:35:280
134491480,3ptp4l0-21swapper/119:10:491
134491480,3ptp4l0-21swapper/022:56:330
46198470,15rtkit-daemon0-21swapper/322:14:593
1645299473,3cyclictest121rcu_preempt19:18:502
1645299471,8cyclictest33-21ksoftirqd/222:05:242
134491470,4ptp4l0-21swapper/123:33:091
134491470,4ptp4l0-21swapper/119:32:311
134491470,4ptp4l0-21swapper/021:41:030
134491470,4ptp4l0-21swapper/020:42:580
134491470,10ptp4l0-21swapper/100:14:231
134491460,4ptp4l1645199cyclictest23:03:071
134491460,4ptp4l0-21swapper/123:40:571
134491460,3ptp4l0-21swapper/123:46:241
134491460,3ptp4l0-21swapper/120:27:031
134491460,3ptp4l0-21swapper/119:40:071
134491450,4ptp4l0-21swapper/023:48:470
134491450,3ptp4l0-21swapper/123:05:141
134491450,3ptp4l0-21swapper/121:24:121
134491450,3ptp4l0-21swapper/022:07:180
134491450,3ptp4l0-21swapper/021:55:370
134491450,11ptp4l0-21swapper/319:19:273
16453994411,31cyclictest0-21swapper/321:36:093
134491440,4ptp4l0-21swapper/320:56:203
134491440,4ptp4l0-21swapper/320:56:203
134491440,3ptp4l0-21swapper/122:57:281
134491440,11ptp4l22850-21switchtime20:30:251
134491440,10ptp4l0-21swapper/019:45:580
134491430,9ptp4l0-21swapper/022:18:140
134491430,3ptp4l0-21swapper/020:15:250
16451994236,3cyclictest8598-21grep21:10:171
134491420,6ptp4l0-21swapper/300:14:593
134491420,5ptp4l21018-21meminfo23:55:193
134491420,5ptp4l0-21swapper/120:10:261
134491420,5ptp4l0-21swapper/100:35:111
134491420,3ptp4l0-21swapper/120:24:231
134491420,3ptp4l0-21swapper/021:05:160
16451994125,4cyclictest25-21ksoftirqd/122:15:171
134491410,5ptp4l0-21swapper/321:05:023
134491410,5ptp4l0-21swapper/023:30:230
134491410,5ptp4l0-21swapper/023:05:230
134491410,5ptp4l0-21swapper/000:20:150
134491410,4ptp4l2537-21iostat_ios00:25:193
134491410,4ptp4l2318-21gnome-shell20:34:583
134491410,4ptp4l22806-21memory21:40:201
134491410,4ptp4l0-21swapper/321:25:143
134491410,3ptp4l3215-21apt-get21:00:130
1645399402,36cyclictest0-21swapper/321:01:093
134491400,5ptp4l8609-21grep21:10:183
134491400,5ptp4l29362-21/usr/sbin/munin19:35:231
134491400,5ptp4l0-21swapper/320:20:203
134491400,5ptp4l0-21swapper/320:14:523
134491400,5ptp4l0-21swapper/320:05:233
134491400,5ptp4l0-21swapper/122:10:171
134491400,5ptp4l0-21swapper/121:35:221
134491400,5ptp4l0-21swapper/022:25:270
134491400,5ptp4l0-21swapper/019:35:020
134491400,4ptp4l6571-21df_inode23:25:160
134491400,4ptp4l4458-21/usr/sbin/munin00:30:131
134491400,4ptp4l31678-21iostat22:00:190
134491400,4ptp4l26565-21apt-get23:00:033
134491400,4ptp4l0-21swapper/023:50:110
134491400,4ptp4l0-21swapper/020:29:530
134491400,4ptp4l0-21swapper/020:20:230
134491400,4ptp4l0-21swapper/019:50:260
134491400,4ptp4l0-21swapper/019:40:110
134491400,4ptp4l0-21swapper/019:06:290
134491400,4ptp4l0-21swapper/000:05:150
134491400,3ptp4l7509-21meminfo00:35:180
134491400,3ptp4l2318-21gnome-shell21:49:590
134491390,5ptp4l9073-21latency22:20:203
134491390,5ptp4l5276-21latency_hist21:05:001
134491390,5ptp4l18196-21iostat_ios22:40:161
134491390,5ptp4l0-21swapper/323:25:243
134491390,5ptp4l0-21swapper/322:05:183
134491390,5ptp4l0-21swapper/319:50:143
134491390,5ptp4l0-21swapper/300:02:013
134491390,5ptp4l0-21swapper/120:35:201
134491390,5ptp4l0-21swapper/020:59:320
134491390,5ptp4l0-21swapper/020:59:320
134491390,4ptp4l23341-21ntp_states22:50:250
134491390,4ptp4l19445-21users23:50:273
134491390,4ptp4l11745-21grep21:15:263
134491390,4ptp4l0-21swapper/323:45:103
134491390,4ptp4l0-21swapper/323:30:123
134491390,4ptp4l0-21swapper/323:17:593
134491390,4ptp4l0-21swapper/323:06:433
134491390,4ptp4l0-21swapper/322:46:123
134491390,4ptp4l0-21swapper/322:30:283
134491390,4ptp4l0-21swapper/322:30:283
134491390,4ptp4l0-21swapper/320:35:113
134491390,4ptp4l0-21swapper/320:00:153
134491390,4ptp4l0-21swapper/300:35:223
134491390,4ptp4l0-21swapper/300:20:203
134491390,4ptp4l0-21swapper/300:10:233
134491390,4ptp4l0-21swapper/122:30:251
134491390,4ptp4l0-21swapper/122:30:251
134491390,4ptp4l0-21swapper/120:48:481
134491390,4ptp4l0-21swapper/120:15:201
134491390,4ptp4l0-21swapper/119:25:211
134491390,4ptp4l0-21swapper/023:59:470
134491390,4ptp4l0-21swapper/023:38:150
134491390,4ptp4l0-21swapper/023:20:560
134491390,4ptp4l0-21swapper/021:51:010
134491390,4ptp4l0-21swapper/020:38:070
134491390,4ptp4l0-21swapper/020:32:140
134491390,4ptp4l0-21swapper/019:27:510
134491390,4ptp4l0-21swapper/019:10:220
134491390,4ptp4l0-21swapper/000:29:170
134491390,3ptp4l7173-21apt-get20:00:020
134491390,3ptp4l31960-21irqstats22:00:211
134491390,3ptp4l19844-21diskstats21:35:140
134491390,3ptp4l0-21swapper/000:10:390
16451993833,3cyclictest25-21ksoftirqd/123:15:281
134491380,5ptp4l0-21swapper/023:18:590
134491380,5ptp4l0-21swapper/000:30:190
134491380,4ptp4l29151-21meminfo19:35:213
134491380,4ptp4l1301-21snmpd22:40:133
134491380,4ptp4l0-21swapper/323:41:573
134491380,4ptp4l0-21swapper/323:20:113
134491380,4ptp4l0-21swapper/322:55:133
134491380,4ptp4l0-21swapper/322:50:213
134491380,4ptp4l0-21swapper/322:35:133
134491380,4ptp4l0-21swapper/322:29:483
134491380,4ptp4l0-21swapper/322:15:473
134491380,4ptp4l0-21swapper/322:01:473
134491380,4ptp4l0-21swapper/321:47:323
134491380,4ptp4l0-21swapper/321:40:183
134491380,4ptp4l0-21swapper/321:31:273
134491380,4ptp4l0-21swapper/321:20:183
134491380,4ptp4l0-21swapper/320:50:193
134491380,4ptp4l0-21swapper/320:45:223
134491380,4ptp4l0-21swapper/320:40:153
134491380,4ptp4l0-21swapper/319:57:263
134491380,4ptp4l0-21swapper/319:30:263
134491380,4ptp4l0-21swapper/300:30:173
134491380,4ptp4l0-21swapper/123:37:291
134491380,4ptp4l0-21swapper/123:25:051
134491380,4ptp4l0-21swapper/123:20:151
134491380,4ptp4l0-21swapper/122:50:181
134491380,4ptp4l0-21swapper/122:45:271
134491380,4ptp4l0-21swapper/121:57:291
134491380,4ptp4l0-21swapper/121:51:151
134491380,4ptp4l0-21swapper/121:31:591
134491380,4ptp4l0-21swapper/120:40:161
134491380,4ptp4l0-21swapper/119:47:221
134491380,4ptp4l0-21swapper/119:20:191
134491380,4ptp4l0-21swapper/023:00:170
134491380,4ptp4l0-21swapper/022:10:170
134491380,4ptp4l0-21swapper/021:30:110
134491380,4ptp4l0-21swapper/021:15:180
134491380,4ptp4l0-21swapper/019:55:200
134491380,4ptp4l0-21swapper/019:19:270
134491380,3ptp4l31594-21/usr/sbin/munin19:40:213
134491380,3ptp4l11448-21meminfo22:25:211
134491380,3ptp4l0-21swapper/019:30:260
134491380,3ptp4l0-21swapper/000:00:160
134491370,4ptp4l0-21swapper/323:35:093
134491370,4ptp4l0-21swapper/320:25:163
134491370,4ptp4l0-21swapper/319:45:243
134491370,4ptp4l0-21swapper/319:25:153
134491370,4ptp4l0-21swapper/319:22:513
134491370,4ptp4l0-21swapper/300:05:203
134491370,4ptp4l0-21swapper/022:40:190
134491370,4ptp4l0-21swapper/021:11:230
134491370,4ptp4l0-21swapper/020:50:000
134491370,3ptp4l0-21swapper/119:50:381
46198360,4rtkit-daemon0-21swapper/320:15:313
134491360,4ptp4l0-21swapper/123:14:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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