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2026-01-11 - 14:00
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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 Sun Jan 11, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34521520,5sleep31030699cyclictest22:15:183
3050321380,4sleep11030499cyclictest23:20:151
188362620,3sleep318840-21cpuspeed_turbos00:05:143
134491590,4ptp4l0-21swapper/220:25:142
134491590,3ptp4l28715-21/usr/sbin/munin20:55:241
134491590,3ptp4l0-21swapper/223:15:062
134491580,5ptp4l0-21swapper/219:24:412
134491580,4ptp4l0-21swapper/322:05:213
134491570,3ptp4l7182-21ls20:10:232
134491570,3ptp4l0-21swapper/222:00:162
134491570,3ptp4l0-21swapper/219:35:042
134491560,4ptp4l1804-21df_inode20:00:200
134491560,4ptp4l0-21swapper/222:15:192
134491560,3ptp4l0-21swapper/300:27:253
134491550,4ptp4l0-21swapper/121:45:161
134491550,4ptp4l0-21swapper/019:24:070
134491550,3ptp4l0-21swapper/322:44:553
134491540,5ptp4l0-21swapper/021:22:430
134491540,4ptp4l0-21swapper/023:02:000
134491540,4ptp4l0-21swapper/023:02:000
134491540,4ptp4l0-21swapper/019:13:230
134491540,3ptp4l0-21swapper/022:09:370
134491540,13ptp4l11497-21apt22:39:592
134491530,4ptp4l0-21swapper/223:35:122
134491530,4ptp4l0-21swapper/220:35:272
134491530,4ptp4l0-21swapper/219:52:362
134491530,4ptp4l0-21swapper/023:50:590
1030499539,4cyclictest25-21ksoftirqd/120:25:001
134491520,3ptp4l0-21swapper/022:30:000
46342510,5sleep20-21swapper/223:35:002
134491510,4ptp4l0-21swapper/220:02:572
134491510,4ptp4l0-21swapper/200:04:262
134491510,4ptp4l0-21swapper/121:16:221
134491510,4ptp4l0-21swapper/021:28:480
134491510,3ptp4l0-21swapper/020:25:200
134491510,12ptp4l0-21swapper/200:10:212
1030399517,3cyclictest9-21ksoftirqd/021:37:380
134491500,4ptp4l1011-21apt-get20:00:033
134491500,4ptp4l0-21swapper/223:24:282
134491500,4ptp4l0-21swapper/119:46:451
134491500,4ptp4l0-21swapper/119:14:191
134491500,4ptp4l0-21swapper/020:40:320
134491500,3ptp4l0-21swapper/321:27:323
134491500,3ptp4l0-21swapper/221:40:002
134491500,12ptp4l23855-21ps23:05:202
10304995011,9cyclictest25-21ksoftirqd/100:33:291
134491490,9ptp4l0-21swapper/119:05:271
134491490,4ptp4l0-21swapper/221:26:232
134491490,4ptp4l0-21swapper/221:02:412
134491490,4ptp4l0-21swapper/220:51:342
134491490,4ptp4l0-21swapper/200:32:592
134491490,4ptp4l0-21swapper/122:33:471
134491490,4ptp4l0-21swapper/021:51:050
134491490,3ptp4l0-21swapper/220:49:052
134491490,3ptp4l0-21swapper/219:28:252
134491490,16ptp4l0-21swapper/319:19:233
134491490,12ptp4l0-21swapper/222:41:092
1030499497,8cyclictest25-21ksoftirqd/121:30:441
1030499497,8cyclictest25-21ksoftirqd/121:30:441
134491480,4ptp4l0-21swapper/023:10:520
134491480,4ptp4l0-21swapper/022:46:240
134491480,3ptp4l0-21swapper/222:25:242
134491480,2ptp4l0-21swapper/321:44:553
134491480,13ptp4l0-21swapper/023:20:240
10303994843,3cyclictest9-21ksoftirqd/023:50:010
1030399483,9cyclictest9-21ksoftirqd/022:35:000
134491470,4ptp4l0-21swapper/222:47:182
134491470,4ptp4l0-21swapper/221:31:052
134491470,4ptp4l0-21swapper/221:31:052
134491470,4ptp4l0-21swapper/020:50:220
134491470,4ptp4l0-21swapper/019:17:060
134491470,3ptp4l0-21swapper/221:43:472
134491470,3ptp4l0-21swapper/221:10:582
134491470,3ptp4l0-21swapper/219:33:362
134491470,14ptp4l12937-21proc_pri22:40:260
10305994740,4cyclictest30525-21grep22:10:192
1030499472,3cyclictest121rcu_preempt23:25:271
134491460,4ptp4l0-21swapper/222:57:002
134491460,4ptp4l0-21swapper/123:46:041
134491460,4ptp4l0-21swapper/120:46:041
134491460,4ptp4l0-21swapper/023:58:130
134491460,4ptp4l0-21swapper/020:48:420
134491460,3ptp4l0-21swapper/220:22:372
134491460,3ptp4l0-21swapper/220:09:122
134491460,3ptp4l0-21swapper/219:55:352
134491460,3ptp4l0-21swapper/219:19:212
134491460,3ptp4l0-21swapper/200:09:122
134491460,2ptp4l0-21swapper/319:20:513
10304994616,4cyclictest25-21ksoftirqd/119:35:231
1030499461,3cyclictest121rcu_preempt23:33:411
134491450,6ptp4l0-21swapper/019:06:480
134491450,4ptp4l2318-21gnome-shell21:52:571
134491450,4ptp4l0-21swapper/319:32:303
134491450,3ptp4l0-21swapper/220:16:342
134491450,3ptp4l0-21swapper/220:16:342
134491450,3ptp4l0-21swapper/200:35:312
134491450,2ptp4l0-21swapper/319:46:033
10306994538,4cyclictest21544-21irqrtprio23:00:183
10306994538,4cyclictest21544-21irqrtprio23:00:173
134491440,5ptp4l25570-21apt-get23:10:123
134491440,5ptp4l0-21swapper/000:05:290
134491440,4ptp4l8460-21apt-get20:15:120
134491440,4ptp4l8460-21apt-get20:15:120
134491440,4ptp4l16404-21apt-get00:00:123
134491440,4ptp4l0-21swapper/320:35:293
134491440,4ptp4l0-21swapper/222:20:122
134491440,4ptp4l0-21swapper/200:21:002
1030499440,3cyclictest121rcu_preempt20:33:201
10303994415,5cyclictest9-21ksoftirqd/022:03:000
134491430,9ptp4l0-21swapper/020:36:550
134491430,9ptp4l0-21swapper/019:39:590
134491430,4ptp4l30195-21apt-get23:20:133
134491430,4ptp4l29724-21apt-get21:00:143
134491430,4ptp4l0-21swapper/300:11:403
134491430,3ptp4l29947-21apt-get22:10:120
1030499435,3cyclictest121rcu_preempt21:05:221
1030499433,4cyclictest25-21ksoftirqd/100:37:421
10304994327,4cyclictest25-21ksoftirqd/121:35:141
10303994328,4cyclictest9-21ksoftirqd/019:55:200
134491420,5ptp4l0-21swapper/323:30:143
134491420,4ptp4l5916-21ntp_states23:35:223
134491420,4ptp4l3044-21irqstats21:10:181
134491420,4ptp4l2150-21apt-get21:10:113
134491420,4ptp4l0-21swapper/323:09:373
134491420,4ptp4l0-21swapper/121:55:281
1030499424,3cyclictest25-21ksoftirqd/123:05:011
1030499424,3cyclictest25-21ksoftirqd/123:05:011
10304994237,3cyclictest25-21ksoftirqd/120:10:001
1030499421,7cyclictest121rcu_preempt19:15:001
1030399423,4cyclictest9-21ksoftirqd/020:20:190
10303994227,6cyclictest9-21ksoftirqd/023:15:290
10303994227,3cyclictest9-21ksoftirqd/019:45:130
1030399421,3cyclictest121rcu_preempt23:43:350
134491410,8ptp4l0-21swapper/022:38:020
134491410,5ptp4l0-21swapper/322:20:263
134491410,5ptp4l0-21swapper/319:50:113
134491410,5ptp4l0-21swapper/120:38:201
134491410,5ptp4l0-21swapper/021:40:140
134491410,4ptp4l4285-21hddtemp_smartct20:05:160
134491410,4ptp4l32493-21apt-get23:25:112
134491410,4ptp4l25413-21diskstats20:50:183
134491410,4ptp4l18642-21apt-get22:55:123
134491410,4ptp4l16091-21hddtemp_smartct20:30:150
134491410,4ptp4l0-21swapper/322:30:113
134491410,4ptp4l0-21swapper/319:10:213
134491410,4ptp4l0-21swapper/020:55:290
134491410,4ptp4l0-21swapper/019:40:210
134491410,3ptp4l29484-21hddtemp_smartct19:50:150
134491410,3ptp4l25962-21ls19:40:273
134491410,3ptp4l23525-21apt-get00:15:112
134491410,3ptp4l12214-21hddtemp_smartct23:50:153
134491410,3ptp4l11328-21ls19:10:192
10306994136,3cyclictest41-21ksoftirqd/323:50:013
1030499413,3cyclictest121rcu_preempt21:40:121
10304994126,4cyclictest25-21ksoftirqd/122:45:261
10304994126,4cyclictest25-21ksoftirqd/122:00:201
10303994134,3cyclictest9-21ksoftirqd/023:05:290
10303994127,4cyclictest9-21ksoftirqd/019:25:280
10303994127,3cyclictest9-21ksoftirqd/022:20:170
1030399411,3cyclictest121rcu_preempt19:30:380
134491400,6ptp4l1030499cyclictest22:05:271
134491400,5ptp4l0-21swapper/323:55:113
134491400,5ptp4l0-21swapper/322:45:243
134491400,5ptp4l0-21swapper/321:31:043
134491400,5ptp4l0-21swapper/321:31:043
134491400,5ptp4l0-21swapper/320:15:243
134491400,5ptp4l0-21swapper/320:15:243
134491400,5ptp4l0-21swapper/300:20:203
134491400,5ptp4l0-21swapper/300:18:433
134491400,5ptp4l0-21swapper/223:12:022
134491400,4ptp4l22070-21irqstats00:10:170
134491400,4ptp4l17931-21fschecks_time19:25:151
134491400,4ptp4l0-21swapper/323:40:113
134491400,4ptp4l0-21swapper/322:50:223
134491400,4ptp4l0-21swapper/321:45:153
134491400,4ptp4l0-21swapper/321:35:203
134491400,4ptp4l0-21swapper/321:20:163
134491400,4ptp4l0-21swapper/321:05:123
134491400,4ptp4l0-21swapper/319:35:253
134491400,4ptp4l0-21swapper/122:55:161
134491400,4ptp4l0-21swapper/122:50:111
134491400,4ptp4l0-21swapper/122:22:481
134491400,4ptp4l0-21swapper/122:19:281
134491400,4ptp4l0-21swapper/120:27:101
134491400,4ptp4l0-21swapper/119:40:231
134491400,4ptp4l0-21swapper/023:29:440
134491400,4ptp4l0-21swapper/022:54:150
134491400,4ptp4l0-21swapper/021:56:020
134491400,4ptp4l0-21swapper/021:16:310
134491400,4ptp4l0-21swapper/021:08:170
134491400,4ptp4l0-21swapper/020:10:380
134491400,4ptp4l0-21swapper/000:36:180
134491400,3ptp4l4981-21ntp_states20:05:233
134491400,3ptp4l28490-21irqstats22:05:192
134491400,3ptp4l26759-21apt-get19:45:112
134491400,3ptp4l18722-21df_inode21:45:140
134491400,3ptp4l12357-21ls20:20:263
134491400,3ptp4l0-21swapper/221:05:222
134491400,12ptp4l0-21swapper/120:51:321
1030499405,3cyclictest121rcu_preempt22:25:181
10304994035,3cyclictest25-21ksoftirqd/123:15:001
10304994035,3cyclictest25-21ksoftirqd/122:45:001
10304994035,3cyclictest25-21ksoftirqd/121:30:001
10304994035,3cyclictest25-21ksoftirqd/100:00:181
1030499402,7cyclictest25-21ksoftirqd/123:15:281
10304994026,4cyclictest25-21ksoftirqd/123:40:261
10304994026,4cyclictest25-21ksoftirqd/122:35:311
10304994026,3cyclictest25-21ksoftirqd/120:15:181
10304994026,3cyclictest25-21ksoftirqd/120:15:181
10304994025,4cyclictest25-21ksoftirqd/121:00:251
10304994025,4cyclictest25-21ksoftirqd/119:52:181
10304994025,4cyclictest25-21ksoftirqd/100:05:141
10304994025,3cyclictest25-21ksoftirqd/119:20:171
1030399405,4cyclictest9-21ksoftirqd/022:18:010
10303994023,3cyclictest9-21ksoftirqd/000:25:200
1030399400,3cyclictest121rcu_preempt23:30:390
134491390,5ptp4l20744-21ls19:30:191
134491390,5ptp4l1030699cyclictest22:00:203
134491390,5ptp4l0-21swapper/322:25:293
134491390,5ptp4l0-21swapper/320:30:163
134491390,5ptp4l0-21swapper/320:13:403
134491390,5ptp4l0-21swapper/223:45:122
134491390,5ptp4l0-21swapper/120:40:561
134491390,5ptp4l0-21swapper/000:00:110
134491390,4ptp4l24781-21/usr/sbin/munin19:40:152
134491390,4ptp4l0-21swapper/323:25:133
134491390,4ptp4l0-21swapper/323:15:143
134491390,4ptp4l0-21swapper/322:12:543
134491390,4ptp4l0-21swapper/321:15:193
134491390,4ptp4l0-21swapper/320:55:363
134491390,4ptp4l0-21swapper/320:45:163
134491390,4ptp4l0-21swapper/320:40:243
134491390,4ptp4l0-21swapper/223:44:032
134491390,4ptp4l0-21swapper/221:50:162
134491390,4ptp4l0-21swapper/220:58:552
134491390,4ptp4l0-21swapper/220:34:402
134491390,4ptp4l0-21swapper/120:10:181
134491390,4ptp4l0-21swapper/119:56:211
134491390,4ptp4l0-21swapper/021:30:010
134491390,4ptp4l0-21swapper/021:30:010
134491390,4ptp4l0-21swapper/021:10:150
134491390,4ptp4l0-21swapper/000:30:270
134491390,4ptp4l0-21swapper/000:22:090
134491390,4ptp4l0-21swapper/000:15:350
134491390,3ptp4l7952-21ntp_states22:30:212
134491390,3ptp4l14083-21apt-get23:55:112
134491390,3ptp4l0-21swapper/320:25:243
134491390,3ptp4l0-21swapper/300:31:013
134491390,3ptp4l0-21swapper/221:15:482
134491390,3ptp4l0-21swapper/021:01:380
10305993934,3cyclictest33-21ksoftirqd/221:55:182
10304993934,3cyclictest25-21ksoftirqd/120:00:001
10304993925,4cyclictest25-21ksoftirqd/123:08:211
10304993925,3cyclictest25-21ksoftirqd/123:52:221
10304993923,4cyclictest25-21ksoftirqd/100:15:201
10303993924,4cyclictest9-21ksoftirqd/022:55:590
134491380,4ptp4l0-21swapper/322:35:213
134491380,4ptp4l0-21swapper/319:25:203
134491380,4ptp4l0-21swapper/300:35:193
134491380,4ptp4l0-21swapper/223:53:282
134491380,4ptp4l0-21swapper/223:00:122
134491380,4ptp4l0-21swapper/223:00:122
134491380,4ptp4l0-21swapper/222:51:272
134491380,4ptp4l0-21swapper/221:45:082
134491380,4ptp4l0-21swapper/221:24:172
134491380,4ptp4l0-21swapper/220:43:382
134491380,4ptp4l0-21swapper/121:20:001
134491380,3ptp4l0-21swapper/321:55:163
134491380,3ptp4l0-21swapper/321:50:253
134491380,3ptp4l0-21swapper/319:55:133
134491380,3ptp4l0-21swapper/122:10:201
10304993833,3cyclictest25-21ksoftirqd/100:10:151
10303993823,4cyclictest9-21ksoftirqd/023:35:130
134491370,3ptp4l0-21swapper/200:25:162
1030499374,3cyclictest121rcu_preempt23:35:131
10304993723,3cyclictest25-21ksoftirqd/123:57:211
10304993723,3cyclictest25-21ksoftirqd/100:20:191
10304993529,3cyclictest25-21ksoftirqd/100:25:151
46198340,11rtkit-daemon0-21swapper/319:05:133
98382123,4sleep20-21swapper/219:07:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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