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2026-06-16 - 08:35
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Tue Jun 16, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2905121600,6sleep01383299cyclictest19:40:210
2248121410,5sleep30-21swapper/320:35:243
134491640,3ptp4l14626-21/usr/sbin/munin22:40:161
134491630,4ptp4l0-21swapper/220:42:072
122722620,1sleep112274-21sh22:35:011
134491610,3ptp4l7928-21hddtemp_smartct21:15:170
203162600,5sleep10-21swapper/122:50:221
134491600,5ptp4l0-21swapper/020:15:220
134491600,4ptp4l0-21swapper/019:08:180
134491590,4ptp4l0-21swapper/022:10:230
134491580,4ptp4l0-21swapper/022:40:230
134491580,3ptp4l15236-21memory20:20:222
134491580,3ptp4l0-21swapper/022:27:230
134491570,4ptp4l11694-21seq21:22:513
134491570,4ptp4l0-21swapper/120:14:321
134491560,4ptp4l941-21irqstats19:50:181
134491560,3ptp4l5011-21apt-get20:00:140
134491560,3ptp4l5011-21apt-get20:00:140
134491560,3ptp4l27388-21ntp_states00:15:230
134491560,3ptp4l0-21swapper/022:15:270
134491560,3ptp4l0-21swapper/021:20:160
134491560,17ptp4l0-21swapper/019:20:270
134491540,3ptp4l0-21swapper/121:05:261
134491540,3ptp4l0-21swapper/022:58:470
168972530,5sleep10-21swapper/120:25:151
134491530,4ptp4l0-21swapper/020:30:260
134491530,4ptp4l0-21swapper/020:30:260
134491530,4ptp4l0-21swapper/000:31:590
134491530,3ptp4l0-21swapper/121:13:061
134491520,4ptp4l0-21swapper/019:25:570
134491520,3ptp4l0-21swapper/023:50:240
134491500,5ptp4l33-21ksoftirqd/219:57:032
134491500,5ptp4l0-21swapper/119:09:551
134491500,4ptp4l0-21swapper/322:16:443
134491500,4ptp4l0-21swapper/322:01:103
134491500,4ptp4l0-21swapper/222:49:202
134491500,4ptp4l0-21swapper/123:50:071
134491500,3ptp4l0-21swapper/019:39:380
134491500,10ptp4l0-21swapper/022:50:270
134491490,4ptp4l0-21swapper/220:47:312
134491490,4ptp4l0-21swapper/121:53:281
134491490,4ptp4l0-21swapper/119:35:301
134491490,4ptp4l0-21swapper/119:11:401
134491490,4ptp4l0-21swapper/100:24:151
134491490,4ptp4l0-21swapper/019:15:010
134491490,3ptp4l0-21swapper/000:00:300
89032480,1sleep18907-21timerandwakeup22:25:261
134491480,4ptp4l0-21swapper/123:01:131
134491480,4ptp4l0-21swapper/122:07:461
134491480,4ptp4l0-21swapper/121:33:031
134491480,4ptp4l0-21swapper/021:32:480
134491480,3ptp4l0-21swapper/220:33:052
134491480,3ptp4l0-21swapper/220:33:042
134491480,3ptp4l0-21swapper/123:55:211
134491480,13ptp4l0-21swapper/222:50:512
134491470,4ptp4l0-21swapper/223:11:312
134491470,4ptp4l0-21swapper/219:08:162
134491470,4ptp4l0-21swapper/121:45:531
134491470,4ptp4l0-21swapper/119:32:061
134491470,4ptp4l0-21swapper/119:32:061
134491470,4ptp4l0-21swapper/023:09:010
134491470,4ptp4l0-21swapper/022:08:310
134491470,4ptp4l0-21swapper/021:58:390
134491470,3ptp4l0-21swapper/320:40:133
134491470,3ptp4l0-21swapper/121:02:461
134491470,3ptp4l0-21swapper/022:31:170
134491470,3ptp4l0-21swapper/021:49:300
134491460,4ptp4l0-21swapper/319:08:133
134491460,4ptp4l0-21swapper/120:54:411
134491460,4ptp4l0-21swapper/021:53:330
134491460,4ptp4l0-21swapper/021:25:310
134491460,11ptp4l0-21swapper/223:26:322
134491450,5ptp4l0-21swapper/319:50:123
134491450,4ptp4l1383899cyclictest20:55:453
134491450,4ptp4l0-21swapper/121:57:201
134491450,4ptp4l0-21swapper/020:11:490
134491450,3ptp4l0-21swapper/020:40:260
134491450,12ptp4l0-21swapper/219:14:332
134491450,11ptp4l0-21swapper/223:17:382
134491450,10ptp4l0-21swapper/321:01:183
134491440,9ptp4l0-21swapper/223:50:502
134491440,5ptp4l0-21swapper/222:05:272
134491440,4ptp4l0-21swapper/100:35:481
134491440,3ptp4l0-21swapper/123:31:131
134491440,3ptp4l0-21swapper/023:20:140
134491440,3ptp4l0-21swapper/020:53:370
134491440,2ptp4l0-21swapper/322:53:243
134491440,11ptp4l2199migration/120:42:091
13834994338,3cyclictest25-21ksoftirqd/123:10:001
134491430,5ptp4l0-21swapper/323:05:133
134491430,5ptp4l0-21swapper/321:50:213
134491430,4ptp4l9906-21apt-get23:40:101
134491430,4ptp4l0-21swapper/219:21:342
134491430,3ptp4l6722-21ls22:20:271
134491430,3ptp4l17954-21ls22:45:211
134491430,3ptp4l0-21swapper/100:32:071
134491430,3ptp4l0-21swapper/022:35:220
134491430,11ptp4l0-21swapper/220:08:242
1383899420,5cyclictest15074-21sed21:30:183
134491420,9ptp4l0-21swapper/222:37:202
134491420,8ptp4l25-21ksoftirqd/119:19:071
134491420,8ptp4l0-21swapper/020:25:220
134491420,7ptp4l0-21swapper/222:27:162
134491420,5ptp4l33-21ksoftirqd/221:35:232
134491420,5ptp4l24533-21iostat00:10:181
134491420,5ptp4l0-21swapper/122:30:141
134491420,4ptp4l425-21apt-get22:10:121
134491420,4ptp4l27929-21apt-get19:40:101
134491420,4ptp4l17341-21iostat_ios21:35:190
134491420,4ptp4l16859-21apt-get23:55:120
134491420,4ptp4l0-21swapper/121:38:091
134491420,3ptp4l26933-21ls20:45:180
134491420,3ptp4l101ktimersoftd/020:05:230
134491420,3ptp4l0-21swapper/022:21:550
134491420,10ptp4l0-21swapper/200:32:252
134491410,5ptp4l10336-21hddtemp_smartct23:40:150
134491410,5ptp4l0-21swapper/323:15:193
134491410,5ptp4l0-21swapper/322:40:273
134491410,5ptp4l0-21swapper/321:40:243
134491410,5ptp4l0-21swapper/120:55:111
134491410,4ptp4l2318-21gnome-shell23:41:593
134491410,4ptp4l19392-21diskstats21:40:161
134491410,4ptp4l1301-21snmpd23:00:433
134491410,4ptp4l0-21swapper/121:15:201
134491410,3ptp4l31341-21ntp_states19:45:220
134491410,3ptp4l23106-21apt-get19:30:103
134491410,3ptp4l23106-21apt-get19:30:103
134491410,3ptp4l20947-21apt-get20:35:030
134491410,3ptp4l20815-21apt-get19:25:121
13836994035,3cyclictest33-21ksoftirqd/222:10:112
13836994021,17cyclictest33-21ksoftirqd/200:30:002
13834994035,3cyclictest7278-21kworker/1:120:15:241
13834994035,3cyclictest25-21ksoftirqd/100:20:011
134491400,5ptp4l1808-21phc2sys23:20:233
134491400,5ptp4l17952-21phc2sys-jitter21:35:263
134491400,5ptp4l0-21swapper/323:45:153
134491400,5ptp4l0-21swapper/322:48:393
134491400,5ptp4l0-21swapper/223:39:572
134491400,5ptp4l0-21swapper/223:39:572
134491400,5ptp4l0-21swapper/122:15:121
134491400,5ptp4l0-21swapper/021:00:170
134491400,4ptp4l8163-21iostat_ios23:35:190
134491400,4ptp4l8163-21iostat_ios23:35:190
134491400,4ptp4l29393-21ntpq22:00:201
134491400,4ptp4l28745-21diskstats23:10:150
134491400,4ptp4l2318-21gnome-shell23:39:593
134491400,4ptp4l2318-21gnome-shell23:39:583
134491400,4ptp4l22571-21/usr/sbin/munin00:05:231
134491400,4ptp4l19928-21irqstats21:40:190
134491400,4ptp4l15020-21ntp_states19:10:220
134491400,4ptp4l1046-21meminfo19:50:190
134491400,4ptp4l0-21swapper/319:58:233
134491400,4ptp4l0-21swapper/300:10:043
134491400,4ptp4l0-21swapper/223:30:152
134491400,4ptp4l0-21swapper/223:04:272
134491400,4ptp4l0-21swapper/220:51:322
134491400,4ptp4l0-21swapper/123:12:211
134491400,4ptp4l0-21swapper/119:48:431
134491400,4ptp4l0-21swapper/100:00:151
134491400,4ptp4l0-21swapper/019:30:210
134491400,4ptp4l0-21swapper/019:30:210
134491400,3ptp4l30632-21apt-get20:55:120
134491400,3ptp4l241ktimersoftd/120:31:411
134491400,3ptp4l241ktimersoftd/120:31:411
134491400,3ptp4l23969-21apt-get00:10:130
134491400,3ptp4l13591-21ls21:25:261
134491400,3ptp4l12468-21df23:45:131
134491390,5ptp4l3742-21grep19:55:220
134491390,5ptp4l0-21swapper/320:50:173
134491390,5ptp4l0-21swapper/123:19:211
134491390,5ptp4l0-21swapper/122:55:141
134491390,4ptp4l6050-21/usr/sbin/munin21:10:190
134491390,4ptp4l3803-21sed21:05:193
134491390,4ptp4l0-21swapper/323:59:243
134491390,4ptp4l0-21swapper/323:50:093
134491390,4ptp4l0-21swapper/323:34:573
134491390,4ptp4l0-21swapper/323:29:233
134491390,4ptp4l0-21swapper/322:38:293
134491390,4ptp4l0-21swapper/322:30:563
134491390,4ptp4l0-21swapper/322:26:253
134491390,4ptp4l0-21swapper/322:20:253
134491390,4ptp4l0-21swapper/322:10:293
134491390,4ptp4l0-21swapper/322:06:013
134491390,4ptp4l0-21swapper/321:25:213
134491390,4ptp4l0-21swapper/321:15:443
134491390,4ptp4l0-21swapper/320:20:193
134491390,4ptp4l0-21swapper/320:11:233
134491390,4ptp4l0-21swapper/320:05:193
134491390,4ptp4l0-21swapper/319:48:303
134491390,4ptp4l0-21swapper/319:41:143
134491390,4ptp4l0-21swapper/319:35:373
134491390,4ptp4l0-21swapper/319:25:343
134491390,4ptp4l0-21swapper/319:11:123
134491390,4ptp4l0-21swapper/300:37:463
134491390,4ptp4l0-21swapper/300:31:413
134491390,4ptp4l0-21swapper/300:25:103
134491390,4ptp4l0-21swapper/300:06:233
134491390,4ptp4l0-21swapper/223:45:232
134491390,4ptp4l0-21swapper/223:06:502
134491390,4ptp4l0-21swapper/222:22:312
134491390,4ptp4l0-21swapper/222:16:092
134491390,4ptp4l0-21swapper/219:51:432
134491390,4ptp4l0-21swapper/219:30:082
134491390,4ptp4l0-21swapper/219:30:082
134491390,4ptp4l0-21swapper/200:38:412
134491390,4ptp4l0-21swapper/123:35:231
134491390,4ptp4l0-21swapper/123:35:221
134491390,4ptp4l0-21swapper/123:25:191
134491390,4ptp4l0-21swapper/121:20:141
134491390,4ptp4l0-21swapper/120:45:191
134491390,4ptp4l0-21swapper/120:21:261
134491390,4ptp4l0-21swapper/119:55:011
134491390,4ptp4l0-21swapper/119:22:531
134491390,4ptp4l0-21swapper/100:29:571
134491390,4ptp4l0-21swapper/023:30:210
134491390,4ptp4l0-21swapper/023:00:180
134491390,4ptp4l0-21swapper/022:00:220
134491390,4ptp4l0-21swapper/021:09:220
134491390,4ptp4l0-21swapper/000:35:150
134491390,4ptp4l0-21swapper/000:25:190
134491390,4ptp4l0-21swapper/000:22:330
134491390,4ptp4l0-21swapper/000:06:430
134491390,3ptp4l3952-21meminfo23:25:200
134491390,3ptp4l31570-21ls20:55:202
134491390,3ptp4l17785-21ps20:25:252
134491390,3ptp4l1052-21/usr/sbin/munin23:20:161
134491390,3ptp4l0-21swapper/320:17:113
134491390,3ptp4l0-21swapper/320:01:103
134491390,3ptp4l0-21swapper/320:01:103
134491390,3ptp4l0-21swapper/319:23:063
134491390,3ptp4l0-21swapper/022:48:250
13836993832,4cyclictest33-21ksoftirqd/200:03:362
13836993828,9cyclictest33-21ksoftirqd/221:30:272
134491380,4ptp4l33-21ksoftirqd/221:13:132
134491380,4ptp4l13171-21cat21:25:212
134491380,4ptp4l0-21swapper/321:57:413
134491380,4ptp4l0-21swapper/321:47:263
134491380,4ptp4l0-21swapper/321:12:593
134491380,4ptp4l0-21swapper/320:31:073
134491380,4ptp4l0-21swapper/320:31:073
134491380,4ptp4l0-21swapper/320:25:073
134491380,4ptp4l0-21swapper/300:18:013
134491380,4ptp4l0-21swapper/223:55:242
134491380,4ptp4l0-21swapper/223:43:592
134491380,4ptp4l0-21swapper/222:44:082
134491380,4ptp4l0-21swapper/220:17:382
134491380,4ptp4l0-21swapper/219:49:122
134491380,4ptp4l0-21swapper/219:15:582
134491380,4ptp4l0-21swapper/200:06:572
134491380,4ptp4l0-21swapper/120:35:061
134491380,4ptp4l0-21swapper/120:05:431
134491380,4ptp4l0-21swapper/120:02:411
134491380,4ptp4l0-21swapper/120:02:411
134491380,4ptp4l0-21swapper/023:46:130
134491380,4ptp4l0-21swapper/020:21:000
134491380,3ptp4l0-21swapper/322:57:163
134491380,3ptp4l0-21swapper/300:20:163
134491380,3ptp4l0-21swapper/222:00:192
134491380,3ptp4l0-21swapper/221:50:282
134491380,3ptp4l0-21swapper/221:40:242
134491380,3ptp4l0-21swapper/023:15:250
13836993732,2cyclictest33-21ksoftirqd/222:55:202
134491370,4ptp4l11806-21cat20:15:022
134491370,4ptp4l0-21swapper/300:00:103
134491370,4ptp4l0-21swapper/221:05:322
134491370,4ptp4l0-21swapper/200:15:092
134491370,3ptp4l0-21swapper/323:10:113
134491370,3ptp4l0-21swapper/223:20:242
134491370,3ptp4l0-21swapper/220:02:122
134491370,3ptp4l0-21swapper/220:02:122
134491370,3ptp4l0-21swapper/219:37:582
134491370,3ptp4l0-21swapper/200:12:152
134491370,2ptp4l0-21swapper/220:36:012
134491360,4ptp4l0-21swapper/320:46:533
134491360,3ptp4l0-21swapper/222:33:332
134491360,3ptp4l0-21swapper/221:57:432
134491360,3ptp4l0-21swapper/221:47:242
134491360,3ptp4l0-21swapper/221:16:122
134491360,3ptp4l0-21swapper/219:28:182
134491350,4ptp4l0-21swapper/319:16:333
134491350,4ptp4l0-21swapper/219:41:542
134491350,3ptp4l0-21swapper/221:23:452
13836992924,3cyclictest33-21ksoftirqd/221:03:272
134491290,4ptp4l0-21swapper/200:23:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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