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2025-07-19 - 05:43
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Sat Jul 19, 2025 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191780,7ptp4l0-21swapper/221:22:332
2847191780,4ptp4l1778-21gnome-shell21:29:580
2847191640,5ptp4l0-21swapper/219:50:142
117402630,5sleep10-21swapper/123:25:171
117402630,5sleep10-21swapper/123:25:171
2847191620,5ptp4l0-21swapper/323:55:023
2847191620,4ptp4l0-21swapper/200:15:032
2847191610,4ptp4l0-21swapper/219:55:172
2847191600,3ptp4l0-21swapper/220:00:342
2847191600,3ptp4l0-21swapper/220:00:332
21536996027,4cyclictest41-21ksoftirqd/320:40:003
2847191590,4ptp4l0-21swapper/322:42:573
21536995928,4cyclictest41-21ksoftirqd/323:46:253
2847191580,4ptp4l0-21swapper/319:30:153
2847191580,4ptp4l0-21swapper/222:05:202
2847191580,3ptp4l1293-21snmpd22:12:342
2847191580,3ptp4l0-21swapper/223:57:182
2847191580,3ptp4l0-21swapper/220:35:282
2847191570,5ptp4l0-21swapper/023:50:240
2847191570,4ptp4l0-21swapper/023:23:160
2847191570,3ptp4l0-21swapper/322:48:513
2847191570,3ptp4l0-21swapper/319:50:093
2847191570,3ptp4l0-21swapper/220:27:062
2847191570,3ptp4l0-21swapper/219:25:192
21536995727,3cyclictest41-21ksoftirqd/300:03:173
2847191560,4ptp4l0-21swapper/221:00:282
2847191560,3ptp4l0-21swapper/223:10:262
2847191550,5ptp4l0-21swapper/219:09:532
2847191550,5ptp4l0-21swapper/122:15:041
2847191550,4ptp4l0-21swapper/300:15:333
2847191550,4ptp4l0-21swapper/123:35:271
2847191550,3ptp4l970-21df19:35:172
2847191550,3ptp4l0-21swapper/223:25:202
2847191550,3ptp4l0-21swapper/223:25:202
2847191550,3ptp4l0-21swapper/222:22:182
21536995527,3cyclictest41-21ksoftirqd/322:13:133
21536995527,3cyclictest41-21ksoftirqd/300:23:443
21536995526,3cyclictest41-21ksoftirqd/323:29:153
21536995526,3cyclictest41-21ksoftirqd/323:29:153
21536995525,3cyclictest41-21ksoftirqd/321:28:133
21536995523,7cyclictest41-21ksoftirqd/320:20:003
120852550,4sleep30-21swapper/300:35:003
2847191540,3ptp4l0-21swapper/023:03:220
21536995426,3cyclictest41-21ksoftirqd/320:30:143
21536995424,4cyclictest41-21ksoftirqd/322:30:583
21536995423,4cyclictest41-21ksoftirqd/323:39:223
2847191530,4ptp4l0-21swapper/323:40:213
2847191530,4ptp4l0-21swapper/323:05:533
2847191530,4ptp4l0-21swapper/121:25:111
21536995324,4cyclictest41-21ksoftirqd/323:51:463
21536995322,3cyclictest41-21ksoftirqd/321:17:313
2847191520,4ptp4l0-21swapper/223:31:542
2847191520,4ptp4l0-21swapper/223:31:542
2847191520,4ptp4l0-21swapper/220:08:502
2847191520,12ptp4l19507-21diskstats19:05:151
21536995226,3cyclictest41-21ksoftirqd/320:49:413
21536995225,4cyclictest41-21ksoftirqd/321:45:463
21536995224,4cyclictest41-21ksoftirqd/321:57:263
21536995224,4cyclictest41-21ksoftirqd/320:54:103
21536995223,4cyclictest41-21ksoftirqd/319:39:043
2847191510,4ptp4l0-21swapper/321:01:313
2847191510,4ptp4l0-21swapper/319:56:273
2847191510,4ptp4l0-21swapper/223:18:122
2847191510,4ptp4l0-21swapper/223:07:062
2847191510,4ptp4l0-21swapper/222:38:212
2847191510,4ptp4l0-21swapper/220:30:512
2847191510,4ptp4l0-21swapper/200:08:262
2847191510,3ptp4l0-21swapper/221:59:092
2847191510,3ptp4l0-21swapper/220:45:362
2847191510,3ptp4l0-21swapper/219:30:262
2847191510,3ptp4l0-21swapper/219:18:082
2847191510,3ptp4l0-21swapper/021:47:460
21536995117,10cyclictest41-21ksoftirqd/319:44:593
2847191500,4ptp4l0-21swapper/223:47:402
2847191500,4ptp4l0-21swapper/222:40:182
2847191500,4ptp4l0-21swapper/221:42:002
2847191500,4ptp4l0-21swapper/220:54:272
2847191500,4ptp4l0-21swapper/220:12:372
2847191500,4ptp4l0-21swapper/200:11:582
2847191500,4ptp4l0-21swapper/200:11:582
2847191500,4ptp4l0-21swapper/122:13:521
2847191500,3ptp4l0-21swapper/221:45:202
2847191500,3ptp4l0-21swapper/219:21:262
2847191500,3ptp4l0-21swapper/121:15:161
21536995023,3cyclictest41-21ksoftirqd/322:05:273
21536995019,4cyclictest41-21ksoftirqd/319:25:173
21536995012,8cyclictest41-21ksoftirqd/322:04:063
2847191490,4ptp4l0-21swapper/219:48:582
2847191490,4ptp4l0-21swapper/200:38:342
2847191490,3ptp4l0-21swapper/222:28:202
2847191490,3ptp4l0-21swapper/220:16:152
21536994918,4cyclictest41-21ksoftirqd/321:22:483
2847191480,4ptp4l0-21swapper/200:01:072
2847191480,3ptp4l0-21swapper/223:44:502
2847191480,3ptp4l0-21swapper/222:50:212
2847191480,3ptp4l0-21swapper/222:16:132
21536994821,8cyclictest41-21ksoftirqd/321:50:203
21536994820,8cyclictest41-21ksoftirqd/320:10:203
21536994820,4cyclictest41-21ksoftirqd/319:20:273
21536994819,4cyclictest41-21ksoftirqd/300:05:173
21536994814,8cyclictest41-21ksoftirqd/322:25:003
21536994813,7cyclictest41-21ksoftirqd/321:31:213
2847191470,6ptp4l0-21swapper/319:06:343
2847191470,4ptp4l0-21swapper/021:53:020
2847191470,3ptp4l0-21swapper/222:49:442
2847191470,3ptp4l0-21swapper/221:30:082
2847191470,3ptp4l0-21swapper/220:59:102
2847191470,3ptp4l0-21swapper/220:22:182
21536994722,6cyclictest41-21ksoftirqd/323:20:003
21536994721,7cyclictest41-21ksoftirqd/319:10:253
21536994721,3cyclictest41-21ksoftirqd/320:20:483
21536994714,8cyclictest41-21ksoftirqd/323:00:013
2847191460,6ptp4l15561-21apt-get22:25:113
2847191460,4ptp4l0-21swapper/221:14:022
21536994618,4cyclictest41-21ksoftirqd/323:00:243
21536994615,7cyclictest41-21ksoftirqd/320:55:233
2847191450,4ptp4l15062-21ls23:30:283
2847191450,4ptp4l15062-21ls23:30:283
2847191450,4ptp4l0-21swapper/319:45:153
2847191450,4ptp4l0-21swapper/223:52:372
2847191450,4ptp4l0-21swapper/020:40:470
2847191450,10ptp4l0-21swapper/022:35:010
21536994533,4cyclictest41-21ksoftirqd/322:52:343
21536994516,3cyclictest41-21ksoftirqd/323:20:333
21536994512,7cyclictest41-21ksoftirqd/321:35:503
2847191440,9ptp4l0-21swapper/023:58:040
2847191440,3ptp4l0-21swapper/221:05:242
2847191440,3ptp4l0-21swapper/219:43:442
2847191440,3ptp4l0-21swapper/019:05:470
2153699446,6cyclictest41-21ksoftirqd/322:15:173
21536994416,7cyclictest41-21ksoftirqd/300:35:293
21536994414,3cyclictest41-21ksoftirqd/322:35:313
21536994412,10cyclictest41-21ksoftirqd/320:10:003
2847191430,9ptp4l9-21ksoftirqd/022:24:440
2847191430,7ptp4l11394-21cpuspeed_turbos23:25:140
2847191430,7ptp4l11394-21cpuspeed_turbos23:25:140
2847191430,5ptp4l0-21swapper/320:00:283
2847191430,5ptp4l0-21swapper/320:00:283
2847191430,5ptp4l0-21swapper/122:45:191
2847191430,5ptp4l0-21swapper/022:15:280
2847191430,5ptp4l0-21swapper/000:25:140
2847191430,4ptp4l31778-21meminfo19:30:210
2847191430,4ptp4l0-21swapper/321:14:503
2153699439,7cyclictest41-21ksoftirqd/321:45:013
21536994329,3cyclictest41-21ksoftirqd/320:42:243
2847191420,5ptp4l6523-21ntp_states00:20:242
2847191420,5ptp4l31894-21hddtemp_smartct21:50:171
2847191420,5ptp4l14066-21/usr/sbin/munin23:30:181
2847191420,5ptp4l14066-21/usr/sbin/munin23:30:181
2847191420,4ptp4l8941-21apt-get23:20:122
2847191420,4ptp4l21015-21df_inode23:45:141
2847191420,3ptp4l7709-21apt-get00:25:141
2847191420,3ptp4l4121-21diskstats22:00:160
2847191420,3ptp4l1778-21gnome-shell21:31:580
2847191420,11ptp4l0-21swapper/221:37:222
2153699426,2cyclictest41-21ksoftirqd/300:30:003
2153699424,2cyclictest41-21ksoftirqd/321:09:163
21536994212,10cyclictest41-21ksoftirqd/323:10:223
21536994210,7cyclictest41-21ksoftirqd/320:25:163
2847191410,6ptp4l6236-21fw_packets20:55:180
2847191410,5ptp4l4408-21/usr/sbin/munin19:40:240
2847191410,5ptp4l2093-21sed20:45:200
2847191410,5ptp4l0-21swapper/300:10:153
2847191410,5ptp4l0-21swapper/300:10:153
2847191410,5ptp4l0-21swapper/121:43:201
2847191410,5ptp4l0-21swapper/023:18:260
2847191410,5ptp4l0-21swapper/022:55:240
2847191410,5ptp4l0-21swapper/022:05:140
2847191410,5ptp4l0-21swapper/021:20:130
2847191410,4ptp4l8669-21meminfo00:25:222
2847191410,4ptp4l22721-21df22:40:171
2847191410,4ptp4l0-21swapper/120:45:221
2847191410,4ptp4l0-21swapper/021:37:170
2847191410,4ptp4l0-21swapper/020:30:190
2847191410,3ptp4l6638-21meminfo19:45:191
2847191410,3ptp4l3124-21ntp_states23:05:241
2847191410,3ptp4l28725-21df19:25:151
2847191410,3ptp4l14867-21mailstats23:30:260
2847191410,3ptp4l14867-21mailstats23:30:260
21533994137,2cyclictest9-21ksoftirqd/020:20:000
2847191400,5ptp4l0-21swapper/100:10:191
2847191400,5ptp4l0-21swapper/100:10:181
2847191400,5ptp4l0-21swapper/020:05:210
2847191400,4ptp4l6575-21phc2sys00:20:250
2847191400,4ptp4l29476-21memory19:25:230
2847191400,4ptp4l22287-21ls23:45:270
2847191400,4ptp4l18469-21/usr/sbin/munin20:10:231
2847191400,4ptp4l0-21swapper/123:23:321
2847191400,4ptp4l0-21swapper/122:08:061
2847191400,4ptp4l0-21swapper/121:57:121
2847191400,4ptp4l0-21swapper/121:39:191
2847191400,4ptp4l0-21swapper/121:30:191
2847191400,4ptp4l0-21swapper/120:50:211
2847191400,4ptp4l0-21swapper/120:25:171
2847191400,4ptp4l0-21swapper/120:05:311
2847191400,4ptp4l0-21swapper/120:00:131
2847191400,4ptp4l0-21swapper/120:00:131
2847191400,4ptp4l0-21swapper/119:57:191
2847191400,4ptp4l0-21swapper/119:33:171
2847191400,4ptp4l0-21swapper/119:10:171
2847191400,4ptp4l0-21swapper/100:30:061
2847191400,4ptp4l0-21swapper/023:40:150
2847191400,4ptp4l0-21swapper/023:10:180
2847191400,4ptp4l0-21swapper/023:06:280
2847191400,4ptp4l0-21swapper/022:52:320
2847191400,4ptp4l0-21swapper/022:47:500
2847191400,4ptp4l0-21swapper/022:40:260
2847191400,4ptp4l0-21swapper/021:40:220
2847191400,4ptp4l0-21swapper/021:15:280
2847191400,4ptp4l0-21swapper/021:12:460
2847191400,4ptp4l0-21swapper/021:07:480
2847191400,4ptp4l0-21swapper/021:01:340
2847191400,4ptp4l0-21swapper/020:54:360
2847191400,4ptp4l0-21swapper/020:35:180
2847191400,4ptp4l0-21swapper/020:10:190
2847191400,4ptp4l0-21swapper/019:58:450
2847191400,4ptp4l0-21swapper/019:54:200
2847191400,4ptp4l0-21swapper/019:47:300
2847191400,4ptp4l0-21swapper/019:37:030
2847191400,4ptp4l0-21swapper/019:23:270
2847191400,4ptp4l0-21swapper/019:16:290
2847191400,4ptp4l0-21swapper/019:10:060
2847191400,4ptp4l0-21swapper/000:36:100
2847191400,4ptp4l0-21swapper/000:32:160
2847191400,4ptp4l0-21swapper/000:17:330
2847191400,4ptp4l0-21swapper/000:11:380
2847191400,4ptp4l0-21swapper/000:11:380
2847191400,4ptp4l0-21swapper/000:06:520
2847191400,3ptp4l29653-21apt-get22:55:152
2847191400,3ptp4l25187-21meminfo20:25:220
2847191400,3ptp4l20705-21ls21:25:202
2847191400,3ptp4l17071-21ls22:25:250
2847191400,3ptp4l0-21swapper/100:05:221
2847191400,2ptp4l17376-21apt-get21:20:141
2847191390,5ptp4l0-21swapper/021:55:220
2847191390,4ptp4l31966-21/usr/sbin/munin23:00:172
2847191390,4ptp4l1293-21snmpd23:37:212
2847191390,4ptp4l0-21swapper/222:00:242
2847191390,4ptp4l0-21swapper/221:15:182
2847191390,4ptp4l0-21swapper/220:40:232
2847191390,4ptp4l0-21swapper/123:53:431
2847191390,4ptp4l0-21swapper/123:41:221
2847191390,4ptp4l0-21swapper/123:03:151
2847191390,4ptp4l0-21swapper/122:58:371
2847191390,4ptp4l0-21swapper/122:30:301
2847191390,4ptp4l0-21swapper/121:10:261
2847191390,4ptp4l0-21swapper/121:00:371
2847191390,4ptp4l0-21swapper/120:59:461
2847191390,4ptp4l0-21swapper/120:34:021
2847191390,4ptp4l0-21swapper/119:50:411
2847191390,4ptp4l0-21swapper/100:39:481
2847191390,4ptp4l0-21swapper/100:01:481
2847191390,4ptp4l0-21swapper/023:36:050
2847191390,4ptp4l0-21swapper/022:35:240
2847191390,4ptp4l0-21swapper/020:24:560
2847191390,4ptp4l0-21swapper/000:00:210
2847191390,3ptp4l8618-21/usr/sbin/munin22:10:250
2847191390,3ptp4l29417-21/usr/sbin/munin20:35:211
2847191390,3ptp4l23000-21ls19:10:282
2847191390,3ptp4l11590-21ls00:30:292
2847191390,3ptp4l0-21swapper/020:00:210
2847191390,3ptp4l0-21swapper/020:00:200
2153699391,2cyclictest121rcu_preempt19:17:463
2847191380,4ptp4l0-21swapper/222:30:192
2847191380,4ptp4l0-21swapper/123:57:271
2847191380,4ptp4l0-21swapper/123:12:501
2847191380,4ptp4l0-21swapper/122:52:391
2847191380,4ptp4l0-21swapper/122:35:251
2847191380,4ptp4l0-21swapper/122:20:291
2847191380,4ptp4l0-21swapper/122:05:001
2847191380,4ptp4l0-21swapper/121:47:211
2847191380,4ptp4l0-21swapper/120:21:251
2847191380,4ptp4l0-21swapper/120:15:201
2847191380,4ptp4l0-21swapper/119:40:291
2847191380,4ptp4l0-21swapper/119:37:071
2847191380,4ptp4l0-21swapper/100:20:181
2847191380,4ptp4l0-21swapper/100:15:161
2847191380,3ptp4l0-21swapper/221:51:082
2847191380,3ptp4l0-21swapper/123:19:581
2847191380,3ptp4l0-21swapper/122:28:051
2847191380,3ptp4l0-21swapper/119:23:421
2847191380,2ptp4l21532-21cyclictest20:44:091
2847191360,3ptp4l0-21swapper/119:16:501
21534993126,3cyclictest25-21ksoftirqd/121:08:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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