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2026-08-16 - 10:08
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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 Aug 16, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265682710,5sleep30-21swapper/319:35:213
1407299673,61cyclictest0-21swapper/200:05:292
14071996632,7cyclictest25-21ksoftirqd/123:20:221
1407299654,59cyclictest0-21swapper/220:40:292
1407299635,56cyclictest0-21swapper/221:40:092
14071996329,4cyclictest25-21ksoftirqd/122:35:201
14071996231,7cyclictest25-21ksoftirqd/122:30:251
14071996221,7cyclictest25-21ksoftirqd/119:50:251
14071996221,7cyclictest25-21ksoftirqd/119:50:251
14071996130,8cyclictest25-21ksoftirqd/122:25:251
14071996130,8cyclictest25-21ksoftirqd/122:10:141
134491610,4ptp4l0-21swapper/019:17:380
14071996032,8cyclictest25-21ksoftirqd/122:40:171
14071996026,7cyclictest25-21ksoftirqd/100:10:181
14071996026,3cyclictest25-21ksoftirqd/121:50:281
134491600,4ptp4l0-21swapper/119:10:171
134491600,4ptp4l0-21swapper/119:10:171
14071995929,8cyclictest25-21ksoftirqd/120:10:001
14071995926,8cyclictest25-21ksoftirqd/120:35:001
14071995921,3cyclictest25-21ksoftirqd/122:15:231
134491590,4ptp4l0-21swapper/223:50:222
14071995823,4cyclictest25-21ksoftirqd/100:05:311
14071995821,8cyclictest25-21ksoftirqd/123:10:111
14071995820,4cyclictest25-21ksoftirqd/122:20:171
14071995820,4cyclictest25-21ksoftirqd/100:20:171
134491580,4ptp4l0-21swapper/000:17:360
134491580,4ptp4l0-21swapper/000:17:360
134491580,3ptp4l0-21swapper/121:35:211
276802570,6sleep10-21swapper/123:05:291
1407199575,6cyclictest25-21ksoftirqd/123:30:001
14071995728,6cyclictest25-21ksoftirqd/100:25:181
14071995719,4cyclictest25-21ksoftirqd/119:30:291
134491570,7ptp4l0-21swapper/119:05:511
134491570,3ptp4l0-21swapper/219:47:222
134491570,3ptp4l0-21swapper/119:37:061
14071995626,9cyclictest25-21ksoftirqd/120:40:221
14071995626,5cyclictest25-21ksoftirqd/100:15:211
14071995626,5cyclictest25-21ksoftirqd/100:15:211
14071995625,6cyclictest25-21ksoftirqd/121:25:271
14071995624,7cyclictest25-21ksoftirqd/119:25:181
14071995624,3cyclictest25-21ksoftirqd/123:55:161
134491560,5ptp4l0-21swapper/121:30:141
14071995518,4cyclictest25-21ksoftirqd/121:20:401
134491550,3ptp4l0-21swapper/022:15:260
1407199546,3cyclictest25-21ksoftirqd/120:10:181
14071995422,8cyclictest25-21ksoftirqd/119:40:261
134491540,3ptp4l0-21swapper/021:22:000
1407199536,9cyclictest25-21ksoftirqd/123:50:141
1407199535,7cyclictest25-21ksoftirqd/100:35:001
1407199532,7cyclictest25-21ksoftirqd/121:40:271
14071995326,7cyclictest25-21ksoftirqd/122:45:161
134491530,3ptp4l0-21swapper/120:45:211
134491530,20ptp4l9-21ksoftirqd/021:59:100
65042520,4sleep10-21swapper/123:30:251
1407199524,9cyclictest25-21ksoftirqd/123:15:301
134491520,3ptp4l0-21swapper/020:29:300
1407199512,8cyclictest25-21ksoftirqd/100:40:011
14071995119,8cyclictest25-21ksoftirqd/120:00:271
134491510,4ptp4l0-21swapper/321:26:083
134491510,12ptp4l0-21swapper/319:20:473
1407199505,7cyclictest25-21ksoftirqd/123:00:161
1407199504,6cyclictest25-21ksoftirqd/123:40:001
1407199503,2cyclictest25-21ksoftirqd/120:40:001
1407199503,10cyclictest25-21ksoftirqd/121:05:151
14071995019,8cyclictest25-21ksoftirqd/120:25:001
1407199501,7cyclictest25-21ksoftirqd/119:45:151
14071995017,8cyclictest25-21ksoftirqd/121:10:251
1407199500,9cyclictest25-21ksoftirqd/122:50:011
1407199495,7cyclictest25-21ksoftirqd/120:55:191
1407199490,9cyclictest25-21ksoftirqd/122:00:181
134491490,3ptp4l0-21swapper/121:01:531
1407199484,6cyclictest25-21ksoftirqd/121:55:261
1407199481,5cyclictest25-21ksoftirqd/100:00:011
134491480,3ptp4l0-21swapper/122:06:361
1407199473,3cyclictest25-21ksoftirqd/121:20:011
14071994732,8cyclictest25-21ksoftirqd/119:55:151
1407199472,9cyclictest25-21ksoftirqd/119:20:211
1407199472,8cyclictest25-21ksoftirqd/120:20:261
14071994723,9cyclictest25-21ksoftirqd/119:15:281
134491470,2ptp4l0-21swapper/320:41:223
134491470,12ptp4l0-21swapper/000:28:560
1407199462,7cyclictest25-21ksoftirqd/122:55:301
1407199462,7cyclictest0-21swapper/123:45:151
1407199461,3cyclictest121rcu_preempt23:44:121
1407199460,6cyclictest25-21ksoftirqd/120:15:031
134491460,3ptp4l0-21swapper/121:46:121
134491460,27ptp4l9-21ksoftirqd/022:37:160
134491450,3ptp4l101ktimersoftd/021:05:150
134491450,11ptp4l0-21swapper/019:31:090
134491440,9ptp4l0-21swapper/221:47:392
134491440,7ptp4l0-21swapper/019:50:560
134491440,7ptp4l0-21swapper/019:50:550
134491440,5ptp4l0-21swapper/319:10:283
134491440,5ptp4l0-21swapper/319:10:283
134491440,4ptp4l0-21swapper/021:39:220
134491440,3ptp4l1407399cyclictest23:50:543
134491440,2ptp4l0-21swapper/022:09:480
134491440,11ptp4l0-21swapper/020:21:460
134491430,9ptp4l0-21swapper/223:49:172
134491430,9ptp4l0-21swapper/222:05:042
134491430,9ptp4l0-21swapper/220:59:112
134491430,9ptp4l0-21swapper/220:53:032
134491430,5ptp4l0-21swapper/021:15:160
134491430,4ptp4l0-21swapper/300:38:073
134491430,3ptp4l0-21swapper/322:18:343
134491420,9ptp4l0-21swapper/221:06:072
134491420,9ptp4l0-21swapper/220:12:212
134491420,8ptp4l0-21swapper/221:36:122
134491420,7ptp4l0-21swapper/019:05:220
134491420,5ptp4l1407099cyclictest23:27:180
134491420,5ptp4l13536-21ls21:25:260
134491420,5ptp4l10762-21ntp_states20:10:220
134491420,5ptp4l0-21swapper/300:30:153
134491420,5ptp4l0-21swapper/022:45:200
134491420,4ptp4l1407399cyclictest19:18:403
134491420,3ptp4l31517-21perl00:25:152
134491410,6ptp4l4330-21missed_timers00:35:220
134491410,5ptp4l0-21swapper/321:20:283
134491410,5ptp4l0-21swapper/300:10:323
134491410,5ptp4l0-21swapper/022:50:180
134491410,4ptp4l3636-21ntp_states19:55:230
134491410,4ptp4l28241-21apt-get22:00:160
134491410,4ptp4l26405-21diskstats23:05:160
134491410,4ptp4l20700-21users21:40:270
134491410,4ptp4l10392-21hddtemp_smartct23:40:180
134491410,4ptp4l0-21swapper/200:20:292
134491410,3ptp4l30428-21df19:45:150
134491410,3ptp4l19396-21apt-get00:00:150
134491410,3ptp4l16787-21apt-get20:25:153
134491410,3ptp4l0-21swapper/219:13:162
134491410,3ptp4l0-21swapper/219:13:162
1407299403,35cyclictest0-21swapper/221:17:252
134491400,9ptp4l0-21swapper/223:57:242
134491400,5ptp4l0-21swapper/023:20:130
134491400,4ptp4l4383-21sshd19:57:393
134491400,4ptp4l29109-21df_inode00:20:170
134491400,4ptp4l21585-21df20:35:150
134491400,4ptp4l0-21swapper/319:30:133
134491400,4ptp4l0-21swapper/222:33:012
134491400,4ptp4l0-21swapper/222:25:232
134491400,4ptp4l0-21swapper/222:23:102
134491400,4ptp4l0-21swapper/221:29:192
134491400,4ptp4l0-21swapper/220:37:432
134491400,4ptp4l0-21swapper/220:25:072
134491400,4ptp4l0-21swapper/220:20:222
134491400,4ptp4l0-21swapper/219:42:522
134491400,4ptp4l0-21swapper/023:47:590
134491400,4ptp4l0-21swapper/021:45:140
134491400,4ptp4l0-21swapper/020:40:130
134491400,4ptp4l0-21swapper/020:05:050
134491400,4ptp4l0-21swapper/019:10:160
134491400,4ptp4l0-21swapper/019:10:160
134491400,3ptp4l29296-21ls20:50:191
134491400,3ptp4l24189-21apt-get00:10:150
134491400,3ptp4l1407399cyclictest00:29:413
134491400,3ptp4l1282-21df_inode00:30:172
134491400,3ptp4l0-21swapper/021:30:090
134491400,3ptp4l0-21swapper/020:51:530
14073993934,3cyclictest41-21ksoftirqd/323:34:363
14073993916,3cyclictest4643-21grep23:25:283
1407299393,34cyclictest0-21swapper/220:46:212
134491390,5ptp4l14337-21sendmail22:40:002
134491390,5ptp4l0-21swapper/322:01:483
134491390,5ptp4l0-21swapper/321:56:043
134491390,5ptp4l0-21swapper/223:27:152
134491390,5ptp4l0-21swapper/019:25:180
134491390,4ptp4l6010-21irqstats22:20:200
134491390,4ptp4l33-21ksoftirqd/222:10:282
134491390,4ptp4l1645-21/usr/sbin/munin21:00:250
134491390,4ptp4l1407399cyclictest19:49:153
134491390,4ptp4l0-21swapper/322:42:523
134491390,4ptp4l0-21swapper/322:30:323
134491390,4ptp4l0-21swapper/321:06:033
134491390,4ptp4l0-21swapper/319:51:453
134491390,4ptp4l0-21swapper/319:51:453
134491390,4ptp4l0-21swapper/319:40:293
134491390,4ptp4l0-21swapper/319:25:213
134491390,4ptp4l0-21swapper/300:20:133
134491390,4ptp4l0-21swapper/223:42:362
134491390,4ptp4l0-21swapper/223:06:022
134491390,4ptp4l0-21swapper/222:56:212
134491390,4ptp4l0-21swapper/222:45:102
134491390,4ptp4l0-21swapper/222:40:042
134491390,4ptp4l0-21swapper/222:16:322
134491390,4ptp4l0-21swapper/221:55:572
134491390,4ptp4l0-21swapper/221:53:352
134491390,4ptp4l0-21swapper/221:31:072
134491390,4ptp4l0-21swapper/221:24:442
134491390,4ptp4l0-21swapper/221:12:182
134491390,4ptp4l0-21swapper/221:04:092
134491390,4ptp4l0-21swapper/220:30:592
134491390,4ptp4l0-21swapper/220:17:412
134491390,4ptp4l0-21swapper/220:00:212
134491390,4ptp4l0-21swapper/219:56:202
134491390,4ptp4l0-21swapper/219:35:242
134491390,4ptp4l0-21swapper/219:34:592
134491390,4ptp4l0-21swapper/200:17:582
134491390,4ptp4l0-21swapper/200:17:582
134491390,4ptp4l0-21swapper/023:55:130
134491390,4ptp4l0-21swapper/022:59:530
134491390,4ptp4l0-21swapper/022:40:140
134491390,4ptp4l0-21swapper/022:30:260
134491390,4ptp4l0-21swapper/022:28:340
134491390,4ptp4l0-21swapper/020:55:100
134491390,4ptp4l0-21swapper/020:18:080
134491390,4ptp4l0-21swapper/020:01:220
134491390,4ptp4l0-21swapper/019:35:160
134491390,4ptp4l0-21swapper/000:33:370
134491390,3ptp4l30686-21apt-get23:15:140
134491390,3ptp4l30440-21turbostat23:15:000
134491390,3ptp4l20191-21ntp_states20:30:230
134491390,3ptp4l19281-21iostat19:20:180
134491390,3ptp4l0-21swapper/320:10:203
134491390,3ptp4l0-21swapper/320:00:193
134491390,3ptp4l0-21swapper/219:25:422
134491390,3ptp4l0-21swapper/022:10:220
134491390,3ptp4l0-21swapper/021:10:190
14073993816,3cyclictest15390-21ntp_states20:20:223
1407299382,34cyclictest0-21swapper/222:52:292
134491380,5ptp4l0-21swapper/322:52:183
134491380,4ptp4l0-21swapper/323:08:523
134491380,4ptp4l0-21swapper/322:46:023
134491380,4ptp4l0-21swapper/322:21:023
134491380,4ptp4l0-21swapper/322:10:293
134491380,4ptp4l0-21swapper/322:06:283
134491380,4ptp4l0-21swapper/321:45:593
134491380,4ptp4l0-21swapper/321:40:243
134491380,4ptp4l0-21swapper/321:37:373
134491380,4ptp4l0-21swapper/321:16:183
134491380,4ptp4l0-21swapper/321:11:073
134491380,4ptp4l0-21swapper/320:56:133
134491380,4ptp4l0-21swapper/320:47:143
134491380,4ptp4l0-21swapper/320:35:413
134491380,4ptp4l0-21swapper/320:07:313
134491380,4ptp4l0-21swapper/300:17:143
134491380,4ptp4l0-21swapper/300:17:143
134491380,4ptp4l0-21swapper/223:35:392
134491380,4ptp4l0-21swapper/223:32:162
134491380,4ptp4l0-21swapper/223:23:042
134491380,4ptp4l0-21swapper/223:10:592
134491380,4ptp4l0-21swapper/223:00:032
134491380,4ptp4l0-21swapper/222:04:192
134491380,4ptp4l0-21swapper/220:05:252
134491380,4ptp4l0-21swapper/219:50:402
134491380,4ptp4l0-21swapper/219:50:392
134491380,4ptp4l0-21swapper/219:21:422
134491380,4ptp4l0-21swapper/219:17:212
134491380,4ptp4l0-21swapper/200:39:362
134491380,4ptp4l0-21swapper/200:12:472
134491380,4ptp4l0-21swapper/200:03:152
134491380,4ptp4l0-21swapper/021:50:220
134491380,4ptp4l0-21swapper/020:45:160
134491380,4ptp4l0-21swapper/000:05:180
134491380,3ptp4l0-21swapper/322:25:283
134491380,3ptp4l0-21swapper/321:32:103
134491380,3ptp4l0-21swapper/300:05:223
134491380,3ptp4l0-21swapper/019:40:160
14073993732,3cyclictest41-21ksoftirqd/323:45:113
1407399371,4cyclictest134691getstats21:00:133
134491370,4ptp4l0-21swapper/322:36:423
134491370,4ptp4l0-21swapper/321:52:243
134491370,4ptp4l0-21swapper/320:52:153
134491370,4ptp4l0-21swapper/320:31:013
134491370,4ptp4l0-21swapper/223:16:412
134491370,3ptp4l7242-21chrt23:33:040
46198360,4rtkit-daemon0-21swapper/323:37:573
134491360,4ptp4l0-21swapper/023:35:140
134491360,4ptp4l0-21swapper/023:01:190
134491360,3ptp4l0-21swapper/323:43:243
134491360,3ptp4l0-21swapper/320:18:273
134491350,3ptp4l0-21swapper/323:15:473
134491340,3ptp4l0-21swapper/300:01:073
134491320,3ptp4l0-21swapper/023:50:330
1378913127,1phc2sys0-21swapper/319:06:413
14073992927,1cyclictest0-21swapper/322:55:193
14073992416,5cyclictest0-21swapper/323:00:233
134491240,3ptp4l0-21swapper/323:59:183
134491230,3ptp4l0-21swapper/323:22:013
134491230,3ptp4l0-21swapper/323:14:233
131622235,10sleep20-21swapper/219:05:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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