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2025-11-13 - 11:11
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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 all highest latencies:
System rackdslot1.osadl.org (updated Thu Nov 13, 2025 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1410321740,2sleep32184499cyclictest20:00:263
2847191670,21ptp4l30527-21df00:05:142
210462620,6sleep20-21swapper/222:35:182
2847191610,9ptp4l0-21swapper/221:40:222
63802600,3sleep20-21swapper/219:45:212
2847191600,4ptp4l0-21swapper/221:39:072
2847191600,3ptp4l0-21swapper/121:40:291
21842996027,7cyclictest25-21ksoftirqd/100:00:001
2847191590,4ptp4l0-21swapper/223:10:242
2847191590,4ptp4l0-21swapper/200:05:012
2847191590,4ptp4l0-21swapper/200:05:002
2847191590,4ptp4l0-21swapper/122:50:281
2847191580,3ptp4l0-21swapper/323:02:323
2847191580,3ptp4l0-21swapper/323:02:313
2847191580,3ptp4l0-21swapper/122:17:311
21842995821,7cyclictest25-21ksoftirqd/100:06:021
2847191570,4ptp4l0-21swapper/223:21:012
2847191570,4ptp4l0-21swapper/221:47:592
2847191570,4ptp4l0-21swapper/200:30:152
2847191570,3ptp4l0-21swapper/120:25:511
2847191570,3ptp4l0-21swapper/120:25:511
2847191570,3ptp4l0-21swapper/022:23:530
21842995728,7cyclictest25-21ksoftirqd/121:30:331
2847191560,4ptp4l0-21swapper/200:19:452
2847191560,4ptp4l0-21swapper/023:10:210
2847191560,3ptp4l0-21swapper/223:54:392
2847191560,3ptp4l0-21swapper/120:23:071
2847191560,3ptp4l0-21swapper/020:40:160
21842995628,3cyclictest25-21ksoftirqd/121:05:151
21842995627,7cyclictest25-21ksoftirqd/121:25:151
21842995622,7cyclictest25-21ksoftirqd/121:15:151
2847191550,4ptp4l0-21swapper/321:59:223
2847191550,3ptp4l0-21swapper/120:10:401
2847191550,2ptp4l0-21swapper/323:05:183
2847191550,14ptp4l0-21swapper/023:34:590
2847191550,14ptp4l0-21swapper/023:34:590
21842995527,8cyclictest25-21ksoftirqd/120:50:001
2847191540,4ptp4l0-21swapper/221:25:372
2847191540,3ptp4l0-21swapper/321:26:283
2847191540,3ptp4l0-21swapper/319:28:503
2847191540,3ptp4l0-21swapper/122:27:431
2847191540,3ptp4l0-21swapper/121:56:401
21842995424,9cyclictest25-21ksoftirqd/122:35:291
21842995423,9cyclictest25-21ksoftirqd/120:20:001
21842995420,4cyclictest25-21ksoftirqd/119:10:241
21842995419,7cyclictest25-21ksoftirqd/121:02:051
2847191530,4ptp4l0-21swapper/200:22:462
2847191530,4ptp4l0-21swapper/119:30:211
2847191530,3ptp4l0-21swapper/323:23:143
21842995330,8cyclictest25-21ksoftirqd/100:20:231
21842995322,7cyclictest25-21ksoftirqd/123:00:181
21842995322,7cyclictest25-21ksoftirqd/123:00:181
21842995321,7cyclictest25-21ksoftirqd/120:00:191
2847191520,4ptp4l0-21swapper/321:49:123
2847191520,4ptp4l0-21swapper/300:14:343
2847191520,4ptp4l0-21swapper/219:15:532
2847191520,4ptp4l0-21swapper/200:28:232
2847191520,3ptp4l0-21swapper/123:19:411
21842995226,3cyclictest25-21ksoftirqd/100:05:011
21842995226,3cyclictest25-21ksoftirqd/100:05:011
21842995223,4cyclictest25-21ksoftirqd/122:40:211
21842995219,7cyclictest25-21ksoftirqd/119:50:291
21842995218,7cyclictest25-21ksoftirqd/121:10:181
21842995218,6cyclictest25-21ksoftirqd/119:29:101
2847191510,5ptp4l0-21swapper/322:00:183
2847191510,4ptp4l0-21swapper/220:36:442
2847191510,4ptp4l0-21swapper/220:22:002
2847191510,4ptp4l0-21swapper/219:36:502
2847191510,4ptp4l0-21swapper/120:53:481
2847191510,4ptp4l0-21swapper/119:47:411
2847191510,3ptp4l0-21swapper/122:48:411
21842995124,3cyclictest25-21ksoftirqd/121:45:291
2184299512,41cyclictest0-21swapper/100:39:591
21842995122,8cyclictest25-21ksoftirqd/100:26:201
21842995121,3cyclictest25-21ksoftirqd/100:16:131
2847191500,3ptp4l0-21swapper/021:14:050
2847191500,3ptp4l0-21swapper/000:38:110
21842995026,7cyclictest25-21ksoftirqd/123:20:271
21842995024,4cyclictest25-21ksoftirqd/123:45:231
21842995018,3cyclictest25-21ksoftirqd/119:35:251
2847191490,4ptp4l0-21swapper/321:12:503
2847191490,3ptp4l0-21swapper/300:04:293
2847191490,3ptp4l0-21swapper/300:04:293
2184299496,3cyclictest25-21ksoftirqd/120:30:291
21842994924,3cyclictest25-21ksoftirqd/122:07:371
21842994922,7cyclictest25-21ksoftirqd/121:35:151
21842994920,7cyclictest25-21ksoftirqd/123:30:211
21842994920,7cyclictest25-21ksoftirqd/123:30:211
21842994919,6cyclictest25-21ksoftirqd/100:30:151
21842994918,6cyclictest25-21ksoftirqd/122:30:201
2847191480,8ptp4l21173-21users19:05:291
2847191480,4ptp4l0-21swapper/120:35:311
2847191480,3ptp4l0-21swapper/321:01:583
2847191480,3ptp4l0-21swapper/019:05:200
21842994818,8cyclictest25-21ksoftirqd/119:25:001
21842994815,9cyclictest25-21ksoftirqd/122:20:151
21842994812,4cyclictest25-21ksoftirqd/119:15:221
2184299477,3cyclictest25-21ksoftirqd/120:05:291
21842994721,4cyclictest25-21ksoftirqd/120:40:151
21842994719,9cyclictest25-21ksoftirqd/123:50:151
2847191460,3ptp4l0-21swapper/319:10:353
2847191460,3ptp4l0-21swapper/123:08:041
2847191460,3ptp4l0-21swapper/122:11:201
2847191460,3ptp4l0-21swapper/121:21:451
21842994623,2cyclictest25-21ksoftirqd/120:58:051
21842994623,2cyclictest25-21ksoftirqd/120:58:051
2847191450,4ptp4l31201-21apt-get19:30:122
2847191450,4ptp4l3015-21apt-get00:15:120
2847191450,4ptp4l0-21swapper/021:48:000
2847191450,10ptp4l0-21swapper/222:02:392
21842994525,2cyclictest25-21ksoftirqd/122:56:351
21842994521,3cyclictest25-21ksoftirqd/100:14:061
21842994517,9cyclictest25-21ksoftirqd/119:55:161
2847191440,9ptp4l0-21swapper/221:11:482
2847191440,9ptp4l0-21swapper/221:07:162
2847191440,5ptp4l31201-21apt-get19:30:123
2847191440,4ptp4l27625-21apt-get22:50:122
2847191440,4ptp4l23938-21iostat_ios23:50:180
2847191440,4ptp4l20980-21apt-get23:45:113
2847191440,4ptp4l1090-21apt-get19:35:140
2847191440,4ptp4l0-21swapper/322:39:243
2184299443,5cyclictest25-21ksoftirqd/123:28:121
21842994423,3cyclictest25-21ksoftirqd/123:37:031
2849491430,11getstats0-21swapper/320:33:453
2847191430,9ptp4l0-21swapper/220:29:182
2847191430,9ptp4l0-21swapper/220:29:182
2847191430,9ptp4l0-21swapper/219:21:582
2847191430,8ptp4l0-21swapper/321:08:233
2847191430,8ptp4l0-21swapper/220:54:042
2847191430,8ptp4l0-21swapper/200:38:172
2847191430,4ptp4l21562-21iostat_ios23:45:180
2847191430,4ptp4l18665-21apt-get23:40:110
2847191430,4ptp4l17298-21meminfo23:35:222
2847191430,3ptp4l32274-21apt-get23:00:130
2847191430,3ptp4l32274-21apt-get23:00:130
2847191430,3ptp4l0-21swapper/022:02:540
2847191430,2ptp4l121rcu_preempt19:36:123
2184299436,3cyclictest25-21ksoftirqd/122:00:201
2184299435,3cyclictest25-21ksoftirqd/119:40:161
2184299433,8cyclictest25-21ksoftirqd/123:10:141
2184299433,3cyclictest25-21ksoftirqd/123:40:471
2847191420,5ptp4l2009-21grep23:05:002
2847191420,5ptp4l2009-21grep23:05:002
2847191420,4ptp4l6886-21meminfo20:55:220
2847191420,4ptp4l6886-21meminfo20:55:220
2847191420,4ptp4l15617-21apt-get21:15:100
2847191420,4ptp4l0-21swapper/323:35:183
2847191420,3ptp4l31910-21apt-get21:50:130
2847191420,3ptp4l25322-21apt-get22:45:160
2849491410,6getstats2184399cyclictest23:28:212
2847191410,5ptp4l9073-21memory19:50:210
2847191410,5ptp4l27290-21grep23:55:302
2847191410,5ptp4l0-21swapper/020:10:280
2847191410,4ptp4l7990-21/usr/sbin/munin22:05:293
2847191410,4ptp4l4197-21iostat20:50:190
2847191410,4ptp4l31440-21ntp_states00:05:243
2847191410,4ptp4l31408-21df19:30:130
2847191410,4ptp4l18804-21/usr/sbin/munin21:20:200
2847191410,4ptp4l15638-21iostat20:05:200
2847191410,4ptp4l12464-21users21:05:280
2847191410,4ptp4l0-21swapper/223:30:142
2847191410,4ptp4l0-21swapper/223:30:142
2847191410,4ptp4l0-21swapper/222:05:062
2847191410,4ptp4l0-21swapper/221:18:482
2847191410,4ptp4l0-21swapper/219:28:582
2847191410,4ptp4l0-21swapper/023:05:270
2847191410,4ptp4l0-21swapper/021:40:150
2847191410,4ptp4l0-21swapper/000:23:140
2847191410,3ptp4l9984-21ls22:10:202
2847191410,3ptp4l6516-21apt-get22:05:120
2847191410,3ptp4l23173-21iostat_ios21:30:230
2847191410,3ptp4l22951-21apt-get22:40:120
2847191410,3ptp4l22116-21ntp_states23:45:242
2847191410,3ptp4l22022-21apt-get20:20:130
2847191410,3ptp4l17572-21ls22:25:300
2847191410,3ptp4l1592-21meminfo00:10:200
2847191410,3ptp4l0-21swapper/220:14:222
21842994129,3cyclictest25-21ksoftirqd/121:50:261
41798400,4rtkit-daemon0-21swapper/219:57:262
2847191400,6ptp4l0-21swapper/023:35:150
2847191400,5ptp4l0-21swapper/321:35:143
2847191400,5ptp4l0-21swapper/222:18:402
2847191400,5ptp4l0-21swapper/220:42:042
2847191400,5ptp4l0-21swapper/021:59:580
2847191400,4ptp4l25987-21diskstats23:55:180
2847191400,4ptp4l0-21swapper/322:10:093
2847191400,4ptp4l0-21swapper/321:30:283
2847191400,4ptp4l0-21swapper/320:55:003
2847191400,4ptp4l0-21swapper/319:59:223
2847191400,4ptp4l0-21swapper/300:35:003
2847191400,4ptp4l0-21swapper/300:15:153
2847191400,4ptp4l0-21swapper/223:16:162
2847191400,4ptp4l0-21swapper/223:06:462
2847191400,4ptp4l0-21swapper/222:55:282
2847191400,4ptp4l0-21swapper/222:44:112
2847191400,4ptp4l0-21swapper/222:31:362
2847191400,4ptp4l0-21swapper/222:23:472
2847191400,4ptp4l0-21swapper/221:50:092
2847191400,4ptp4l0-21swapper/221:00:062
2847191400,4ptp4l0-21swapper/220:16:222
2847191400,4ptp4l0-21swapper/219:50:142
2847191400,4ptp4l0-21swapper/200:10:022
2847191400,4ptp4l0-21swapper/021:36:410
2847191400,4ptp4l0-21swapper/019:56:400
2847191400,4ptp4l0-21swapper/019:10:410
2847191400,4ptp4l0-21swapper/000:00:020
2847191400,4ptp4l0-21swapper/000:00:010
2847191400,3ptp4l8259-21apt-get21:00:120
2847191400,3ptp4l7881-21df00:25:160
2847191400,3ptp4l7818-21meminfo23:15:200
2847191400,3ptp4l26703-21apt-get20:30:140
2847191400,3ptp4l25198-21meminfo19:15:180
2847191400,3ptp4l20821-21df22:35:160
2847191400,3ptp4l19263-21meminfo22:30:240
2847191400,3ptp4l1778-21gnome-shell19:24:580
2847191400,3ptp4l0-21swapper/320:21:283
2847191400,3ptp4l0-21swapper/319:23:223
2847191400,3ptp4l0-21swapper/020:45:120
2847191400,2ptp4l0-21swapper/322:56:163
2847191390,8ptp4l0-21swapper/321:41:323
2847191390,5ptp4l6163-21fschecks_count19:45:180
2847191390,5ptp4l12610-21cat00:35:143
2847191390,5ptp4l0-21swapper/300:25:463
2847191390,5ptp4l0-21swapper/023:20:140
2847191390,4ptp4l20648-21/usr/sbin/munin20:15:240
2847191390,4ptp4l0-21swapper/323:54:463
2847191390,4ptp4l0-21swapper/323:43:523
2847191390,4ptp4l0-21swapper/323:33:523
2847191390,4ptp4l0-21swapper/323:33:523
2847191390,4ptp4l0-21swapper/323:28:453
2847191390,4ptp4l0-21swapper/323:15:403
2847191390,4ptp4l0-21swapper/322:51:593
2847191390,4ptp4l0-21swapper/322:30:263
2847191390,4ptp4l0-21swapper/322:22:443
2847191390,4ptp4l0-21swapper/321:50:193
2847191390,4ptp4l0-21swapper/321:15:183
2847191390,4ptp4l0-21swapper/320:25:383
2847191390,4ptp4l0-21swapper/320:25:383
2847191390,4ptp4l0-21swapper/320:19:253
2847191390,4ptp4l0-21swapper/320:12:093
2847191390,4ptp4l0-21swapper/320:05:323
2847191390,4ptp4l0-21swapper/319:15:253
2847191390,4ptp4l0-21swapper/300:00:013
2847191390,4ptp4l0-21swapper/223:40:592
2847191390,4ptp4l0-21swapper/222:25:062
2847191390,4ptp4l0-21swapper/221:30:212
2847191390,4ptp4l0-21swapper/221:22:102
2847191390,4ptp4l0-21swapper/220:57:062
2847191390,4ptp4l0-21swapper/220:57:062
2847191390,4ptp4l0-21swapper/220:46:372
2847191390,4ptp4l0-21swapper/220:33:582
2847191390,4ptp4l0-21swapper/220:01:402
2847191390,4ptp4l0-21swapper/219:41:002
2847191390,4ptp4l0-21swapper/023:25:190
2847191390,4ptp4l0-21swapper/022:57:380
2847191390,4ptp4l0-21swapper/021:26:150
2847191390,4ptp4l0-21swapper/020:35:280
2847191390,4ptp4l0-21swapper/020:25:340
2847191390,4ptp4l0-21swapper/020:25:340
2847191390,4ptp4l0-21swapper/019:25:440
2847191390,4ptp4l0-21swapper/000:07:530
2847191390,3ptp4l28897-21/usr/sbin/munin22:50:240
2847191390,3ptp4l0-21swapper/221:56:232
2847191390,3ptp4l0-21swapper/219:12:042
2847191390,3ptp4l0-21swapper/022:15:130
2847191390,2ptp4l10564-21iostat_ios00:30:200
2847191380,4ptp4l0-21swapper/323:11:243
2847191380,4ptp4l0-21swapper/322:29:333
2847191380,4ptp4l0-21swapper/321:24:563
2847191380,4ptp4l0-21swapper/320:58:293
2847191380,4ptp4l0-21swapper/320:58:293
2847191380,4ptp4l0-21swapper/320:45:203
2847191380,4ptp4l0-21swapper/320:35:173
2847191380,4ptp4l0-21swapper/319:51:403
2847191380,4ptp4l0-21swapper/319:46:463
2847191380,4ptp4l0-21swapper/319:41:563
2847191380,4ptp4l0-21swapper/020:00:250
2847191380,4ptp4l0-21swapper/019:40:130
2847191380,3ptp4l0-21swapper/222:47:012
2847191380,3ptp4l0-21swapper/220:08:412
2847191380,3ptp4l0-21swapper/022:10:400
2847191370,3ptp4l0-21swapper/322:47:363
2847191370,3ptp4l0-21swapper/322:42:563
2847191370,3ptp4l0-21swapper/322:15:283
2847191370,3ptp4l0-21swapper/320:43:283
2847191360,3ptp4l0-21swapper/300:21:113
41798310,5rtkit-daemon0-21swapper/319:09:003
2849691254,13phc2sys20623-21ntp_states19:05:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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