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2026-05-14 - 03:28
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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 Thu May 14, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1961021770,7sleep11707999cyclictest23:50:241
3160021480,7sleep11707999cyclictest19:40:151
134491650,5ptp4l0-21swapper/321:00:153
134491650,5ptp4l0-21swapper/321:00:153
134491620,5ptp4l0-21swapper/321:50:163
134491620,5ptp4l0-21swapper/121:05:171
134491620,4ptp4l0-21swapper/019:06:170
134491610,5ptp4l0-21swapper/222:25:262
134491600,6ptp4l0-21swapper/320:00:203
134491590,4ptp4l0-21swapper/021:35:140
253642580,4sleep11707999cyclictest22:55:131
134491580,4ptp4l0-21swapper/223:15:012
134491570,4ptp4l0-21swapper/220:15:172
134491570,3ptp4l30232-21iostat21:55:172
134491570,3ptp4l0-21swapper/223:00:222
134491570,3ptp4l0-21swapper/200:20:012
134491560,4ptp4l0-21swapper/200:34:492
134491560,3ptp4l0-21swapper/223:55:102
134491560,3ptp4l0-21swapper/019:40:240
134491550,5ptp4l0-21swapper/120:35:121
17081995428,3cyclictest41-21ksoftirqd/319:55:013
134491540,4ptp4l0-21swapper/219:20:342
134491540,3ptp4l0-21swapper/020:06:590
134491530,4ptp4l0-21swapper/221:06:132
134491530,4ptp4l0-21swapper/020:16:020
134491530,3ptp4l0-21swapper/322:50:233
134491530,3ptp4l0-21swapper/222:54:122
134491520,4ptp4l0-21swapper/321:35:003
134491520,4ptp4l0-21swapper/300:23:323
134491520,3ptp4l0-21swapper/220:45:252
134491510,4ptp4l0-21swapper/323:53:593
134491510,4ptp4l0-21swapper/323:48:583
134491510,4ptp4l0-21swapper/300:16:133
134491510,4ptp4l0-21swapper/300:09:303
134491510,4ptp4l0-21swapper/119:10:061
134491510,4ptp4l0-21swapper/021:17:350
134491510,3ptp4l0-21swapper/222:43:022
134491500,5ptp4l21721-21sed23:55:210
134491500,4ptp4l0-21swapper/323:59:123
134491500,4ptp4l0-21swapper/121:40:081
134491500,4ptp4l0-21swapper/120:26:121
134491500,3ptp4l0-21swapper/300:00:203
134491500,3ptp4l0-21swapper/220:39:162
134491500,3ptp4l0-21swapper/219:15:242
134491500,2ptp4l5652-21strings23:20:222
134491490,4ptp4l0-21swapper/323:10:393
134491490,4ptp4l0-21swapper/323:00:373
134491490,4ptp4l0-21swapper/319:12:503
134491490,4ptp4l0-21swapper/223:40:212
134491490,4ptp4l0-21swapper/221:29:432
134491490,4ptp4l0-21swapper/121:47:371
134491490,4ptp4l0-21swapper/100:08:521
134491490,3ptp4l0-21swapper/221:04:282
134491490,3ptp4l0-21swapper/221:04:282
134491490,3ptp4l0-21swapper/220:21:412
134491490,3ptp4l0-21swapper/123:11:311
134491490,11ptp4l0-21swapper/322:45:143
1708199480,7cyclictest134491ptp4l20:30:263
134491480,4ptp4l0-21swapper/323:41:273
134491480,4ptp4l0-21swapper/322:55:293
134491480,4ptp4l0-21swapper/321:29:543
134491480,4ptp4l0-21swapper/320:22:313
134491480,4ptp4l0-21swapper/320:16:503
134491480,4ptp4l0-21swapper/319:35:133
134491480,4ptp4l0-21swapper/221:37:302
134491480,4ptp4l0-21swapper/221:20:112
134491480,4ptp4l0-21swapper/123:04:201
134491480,4ptp4l0-21swapper/121:26:531
134491480,4ptp4l0-21swapper/121:03:571
134491480,4ptp4l0-21swapper/121:03:571
134491480,4ptp4l0-21swapper/019:48:590
134491480,4ptp4l0-21swapper/019:48:590
134491480,3ptp4l0-21swapper/223:45:072
134491480,3ptp4l0-21swapper/223:31:102
134491480,3ptp4l0-21swapper/222:00:232
134491480,3ptp4l0-21swapper/119:51:301
134491470,4ptp4l0-21swapper/323:24:173
134491470,4ptp4l0-21swapper/322:30:403
134491470,4ptp4l0-21swapper/320:49:163
134491470,4ptp4l0-21swapper/300:33:383
134491470,4ptp4l0-21swapper/223:38:492
134491470,4ptp4l0-21swapper/221:50:202
134491470,4ptp4l0-21swapper/123:47:381
134491470,4ptp4l0-21swapper/121:32:291
134491470,4ptp4l0-21swapper/023:00:280
134491470,3ptp4l0-21swapper/222:47:412
134491470,11ptp4l0-21swapper/319:27:163
134491460,4ptp4l0-21swapper/300:36:023
134491460,4ptp4l0-21swapper/223:51:252
134491460,4ptp4l0-21swapper/219:25:592
134491460,4ptp4l0-21swapper/000:36:040
134491460,3ptp4l0-21swapper/322:41:143
134491460,3ptp4l0-21swapper/222:55:292
134491460,3ptp4l0-21swapper/222:05:172
134491460,3ptp4l0-21swapper/219:33:332
134491460,2ptp4l121rcu_preempt23:05:172
17078994516,3cyclictest23489-21cut21:40:170
134491450,7ptp4l0-21swapper/321:18:593
134491450,4ptp4l0-21swapper/321:22:453
134491450,4ptp4l0-21swapper/019:39:140
134491450,3ptp4l0-21swapper/320:50:263
134491450,3ptp4l0-21swapper/222:33:082
134491450,3ptp4l0-21swapper/220:55:042
134491440,5ptp4l0-21swapper/320:10:113
134491440,4ptp4l32449-21apt-get00:20:111
134491440,4ptp4l2318-21gnome-shell19:57:591
134491440,4ptp4l16162-21apt-get22:35:122
134491440,4ptp4l0-21swapper/323:09:033
134491440,4ptp4l0-21swapper/319:15:303
134491440,4ptp4l0-21swapper/219:59:002
134491440,4ptp4l0-21swapper/200:06:252
134491440,4ptp4l0-21swapper/019:55:010
134491440,3ptp4l9-21ksoftirqd/021:05:220
134491440,3ptp4l0-21swapper/122:41:301
134491440,10ptp4l0-21swapper/323:18:163
134491440,10ptp4l0-21swapper/120:52:571
17081994315,3cyclictest41-21ksoftirqd/321:44:503
1708199430,3cyclictest121rcu_preempt21:58:043
1708199430,3cyclictest121rcu_preempt21:06:343
1708199430,2cyclictest121rcu_preempt19:46:313
1708199430,2cyclictest121rcu_preempt19:46:303
134491430,5ptp4l30690-21iostat00:15:161
134491430,5ptp4l0-21swapper/119:45:201
134491430,5ptp4l0-21swapper/119:45:201
134491430,4ptp4l27624-21diskstats21:50:131
134491430,4ptp4l2318-21gnome-shell21:12:580
134491430,4ptp4l10703-21df_inode20:05:143
134491430,3ptp4l0-21swapper/321:10:053
1708199422,3cyclictest121rcu_preempt00:30:003
1708199421,3cyclictest121rcu_preempt19:34:223
1708199420,3cyclictest121rcu_preempt20:40:263
134491420,5ptp4l15169-21perl19:05:151
134491420,5ptp4l0-21swapper/119:30:141
134491420,5ptp4l0-21swapper/023:05:140
134491420,4ptp4l7478-21iostat_ios23:25:162
134491420,4ptp4l30968-21irqstats00:15:172
134491420,4ptp4l24024-21apt-get19:25:130
134491420,4ptp4l0-21swapper/120:04:591
134491420,4ptp4l0-21swapper/100:38:331
134491420,4ptp4l0-21swapper/019:10:180
17081994135,3cyclictest41-21ksoftirqd/322:20:003
17078994136,3cyclictest9-21ksoftirqd/000:20:000
134491410,6ptp4l0-21swapper/222:20:042
134491410,5ptp4l24144-21ntp_states00:00:221
134491410,5ptp4l0-21swapper/323:35:153
134491410,5ptp4l0-21swapper/220:50:242
134491410,5ptp4l0-21swapper/120:45:241
134491410,5ptp4l0-21swapper/023:25:230
134491410,5ptp4l0-21swapper/021:21:270
134491410,5ptp4l0-21swapper/020:20:180
134491410,4ptp4l8582-21apt-get22:20:013
134491410,4ptp4l7101-21iostat_ios22:15:182
134491410,4ptp4l6907-21apt-get23:25:123
134491410,4ptp4l5183-21memory22:10:191
134491410,4ptp4l29569-21memory19:35:212
134491410,4ptp4l29133-21diskstats20:45:150
134491410,4ptp4l26133-21ntp_states21:45:223
134491410,4ptp4l2592-21df_inode23:15:150
134491410,4ptp4l21913-21apt-get20:30:102
134491410,4ptp4l19053-21ls21:30:193
134491410,4ptp4l17624-21df_inode20:20:141
134491410,4ptp4l13811-21ntp_states20:10:211
134491410,4ptp4l0-21swapper/319:20:203
134491410,4ptp4l0-21swapper/100:14:461
134491410,4ptp4l0-21swapper/023:14:020
134491410,4ptp4l0-21swapper/020:35:020
134491410,4ptp4l0-21swapper/000:09:200
134491410,3ptp4l31510-21diskstats19:40:152
134491410,3ptp4l26627-21diskstats19:30:150
134491410,3ptp4l24211-21apt-get20:35:133
1708199401,2cyclictest121rcu_preempt22:14:413
17080994034,4cyclictest33-21ksoftirqd/200:10:552
17079994036,2cyclictest25-21ksoftirqd/122:50:011
134491400,5ptp4l27801-21/usr/sbin/munin00:10:273
134491400,5ptp4l11238-21cut20:05:181
134491400,5ptp4l0-21swapper/322:35:123
134491400,5ptp4l0-21swapper/322:08:243
134491400,5ptp4l0-21swapper/220:05:202
134491400,5ptp4l0-21swapper/219:10:262
134491400,4ptp4l6900-21ntp_states19:55:233
134491400,4ptp4l656-21ntp_states22:00:213
134491400,4ptp4l11406-21df21:15:142
134491400,4ptp4l0-21swapper/323:30:133
134491400,4ptp4l0-21swapper/320:55:273
134491400,4ptp4l0-21swapper/221:10:112
134491400,4ptp4l0-21swapper/220:40:272
134491400,4ptp4l0-21swapper/123:41:221
134491400,4ptp4l0-21swapper/123:25:151
134491400,4ptp4l0-21swapper/122:28:401
134491400,4ptp4l0-21swapper/121:58:231
134491400,4ptp4l0-21swapper/121:23:151
134491400,4ptp4l0-21swapper/120:55:191
134491400,4ptp4l0-21swapper/120:40:311
134491400,4ptp4l0-21swapper/119:23:081
134491400,4ptp4l0-21swapper/023:50:200
134491400,4ptp4l0-21swapper/023:20:300
134491400,4ptp4l0-21swapper/022:50:240
134491400,4ptp4l0-21swapper/022:40:160
134491400,4ptp4l0-21swapper/022:38:240
134491400,4ptp4l0-21swapper/022:05:490
134491400,4ptp4l0-21swapper/021:59:030
134491400,4ptp4l0-21swapper/021:45:440
134491400,4ptp4l0-21swapper/021:25:060
134491400,4ptp4l0-21swapper/021:00:190
134491400,4ptp4l0-21swapper/021:00:190
134491400,4ptp4l0-21swapper/000:23:250
134491400,4ptp4l0-21swapper/000:03:070
134491400,3ptp4l5171-21ls22:10:192
134491400,3ptp4l2718-21diskstats00:25:152
134491400,3ptp4l21115-21ls20:25:262
134491400,3ptp4l12691-21ntp_states22:25:223
134491400,3ptp4l10175-21ntp_states22:20:211
17079993933,4cyclictest25-21ksoftirqd/119:35:331
134491390,5ptp4l0-21swapper/320:25:243
134491390,5ptp4l0-21swapper/221:45:222
134491390,5ptp4l0-21swapper/000:30:200
134491390,4ptp4l7323-21grep00:35:142
134491390,4ptp4l0-21swapper/223:14:062
134491390,4ptp4l0-21swapper/221:40:432
134491390,4ptp4l0-21swapper/221:30:282
134491390,4ptp4l0-21swapper/220:10:252
134491390,4ptp4l0-21swapper/220:00:232
134491390,4ptp4l0-21swapper/219:54:202
134491390,4ptp4l0-21swapper/200:00:192
134491390,4ptp4l0-21swapper/123:55:181
134491390,4ptp4l0-21swapper/123:35:321
134491390,4ptp4l0-21swapper/123:30:281
134491390,4ptp4l0-21swapper/123:15:271
134491390,4ptp4l0-21swapper/123:09:211
134491390,4ptp4l0-21swapper/122:53:111
134491390,4ptp4l0-21swapper/122:35:301
134491390,4ptp4l0-21swapper/122:32:341
134491390,4ptp4l0-21swapper/122:19:171
134491390,4ptp4l0-21swapper/122:05:091
134491390,4ptp4l0-21swapper/122:00:041
134491390,4ptp4l0-21swapper/121:37:131
134491390,4ptp4l0-21swapper/121:10:161
134491390,4ptp4l0-21swapper/120:30:231
134491390,4ptp4l0-21swapper/120:15:231
134491390,4ptp4l0-21swapper/100:31:041
134491390,4ptp4l0-21swapper/023:36:530
134491390,4ptp4l0-21swapper/023:30:540
134491390,4ptp4l0-21swapper/022:55:230
134491390,4ptp4l0-21swapper/022:46:570
134491390,4ptp4l0-21swapper/022:31:240
134491390,4ptp4l0-21swapper/022:01:030
134491390,4ptp4l0-21swapper/021:50:140
134491390,4ptp4l0-21swapper/021:33:170
134491390,4ptp4l0-21swapper/020:55:230
134491390,4ptp4l0-21swapper/020:31:110
134491390,4ptp4l0-21swapper/020:25:290
134491390,4ptp4l0-21swapper/020:01:270
134491390,4ptp4l0-21swapper/019:50:160
134491390,4ptp4l0-21swapper/000:10:050
134491390,3ptp4l1662-21iostat19:45:192
134491390,3ptp4l1662-21iostat19:45:192
134491390,3ptp4l0-21swapper/121:15:381
134491390,3ptp4l0-21swapper/022:20:250
134491390,3ptp4l0-21swapper/019:20:190
134491390,3ptp4l0-21swapper/019:17:030
134491380,4ptp4l0-21swapper/319:40:203
134491380,4ptp4l0-21swapper/123:21:551
134491380,4ptp4l0-21swapper/119:25:201
134491380,4ptp4l0-21swapper/100:26:351
134491380,4ptp4l0-21swapper/023:45:190
134491380,4ptp4l0-21swapper/023:42:510
134491380,4ptp4l0-21swapper/020:50:020
134491380,4ptp4l0-21swapper/020:40:380
134491380,4ptp4l0-21swapper/000:25:110
134491380,3ptp4l0-21swapper/119:15:081
134491380,3ptp4l0-21swapper/022:25:240
134491380,3ptp4l0-21swapper/022:15:130
134491370,3ptp4l0-21swapper/022:10:180
134491360,4ptp4l0-21swapper/020:13:440
46198320,5rtkit-daemon0-21swapper/219:07:062
167262123,4sleep30-21swapper/319:09:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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