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2025-11-17 - 05:28
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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 Mon Nov 17, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
835121200,6sleep21461999cyclictest22:20:262
2847191830,16ptp4l0-21swapper/020:40:330
26392640,4sleep10-21swapper/123:20:141
2847191620,4ptp4l0-21swapper/219:15:292
2847191610,5ptp4l0-21swapper/200:30:172
2847191600,4ptp4l0-21swapper/322:50:173
2847191590,9ptp4l0-21swapper/220:49:212
2847191590,4ptp4l18832-21apt-get23:55:152
2847191590,3ptp4l0-21swapper/321:39:163
2847191580,4ptp4l0-21swapper/322:07:023
2847191570,4ptp4l0-21swapper/323:05:013
2847191570,4ptp4l0-21swapper/200:38:272
2847191570,4ptp4l0-21swapper/122:35:271
2847191570,3ptp4l0-21swapper/221:10:312
2847191570,2ptp4l0-21swapper/221:20:222
2847191570,10ptp4l0-21swapper/122:20:351
2847191560,5ptp4l0-21swapper/119:07:371
2847191560,4ptp4l0-21swapper/323:35:293
2847191560,4ptp4l0-21swapper/320:10:263
2847191550,5ptp4l0-21swapper/222:28:072
2847191550,5ptp4l0-21swapper/222:28:072
2847191550,4ptp4l0-21swapper/120:57:381
2847191550,3ptp4l0-21swapper/222:55:232
2847191550,3ptp4l0-21swapper/222:55:232
2847191550,16ptp4l4188-21apt-get21:05:151
2847191540,3ptp4l0-21swapper/319:10:273
2847191540,3ptp4l0-21swapper/223:40:592
2847191540,3ptp4l0-21swapper/123:49:561
2847191530,5ptp4l0-21swapper/222:32:352
2847191530,4ptp4l0-21swapper/322:40:453
2847191530,4ptp4l0-21swapper/322:30:313
2847191530,4ptp4l0-21swapper/322:13:183
2847191530,4ptp4l0-21swapper/300:22:313
2847191530,4ptp4l0-21swapper/220:09:152
2847191530,13ptp4l0-21swapper/200:07:222
1461899534,47cyclictest0-21swapper/122:11:101
2847191520,4ptp4l0-21swapper/223:51:562
2847191520,4ptp4l0-21swapper/222:53:232
2847191520,4ptp4l0-21swapper/220:21:032
2847191520,4ptp4l0-21swapper/219:48:292
2847191520,13ptp4l28056-21apt-get00:15:033
2847191520,11ptp4l0-21swapper/019:45:160
2847191520,10ptp4l12852-21iostat_ios19:05:180
2847191510,4ptp4l0-21swapper/322:35:393
2847191510,4ptp4l0-21swapper/319:38:283
2847191510,4ptp4l0-21swapper/220:34:482
2847191510,3ptp4l0-21swapper/322:00:283
2847191510,3ptp4l0-21swapper/221:01:192
2847191500,8ptp4l0-21swapper/200:00:302
2847191500,4ptp4l0-21swapper/321:28:223
2847191500,4ptp4l0-21swapper/221:55:242
2847191500,4ptp4l0-21swapper/221:47:202
2847191500,4ptp4l0-21swapper/221:47:202
2847191500,4ptp4l0-21swapper/221:32:242
2847191500,4ptp4l0-21swapper/221:28:302
2847191500,4ptp4l0-21swapper/221:08:592
2847191500,3ptp4l0-21swapper/222:44:262
2847191500,3ptp4l0-21swapper/219:31:402
2847191500,3ptp4l0-21swapper/023:10:300
2847191490,4ptp4l0-21swapper/321:45:553
2847191490,4ptp4l0-21swapper/321:45:553
2847191490,3ptp4l0-21swapper/319:50:283
2847191490,3ptp4l0-21swapper/220:54:092
2847191490,3ptp4l0-21swapper/219:14:122
2847191480,4ptp4l0-21swapper/223:08:052
2847191480,3ptp4l0-21swapper/219:40:592
2847191470,3ptp4l0-21swapper/220:39:282
2847191470,17ptp4l0-21swapper/000:24:500
2847191460,4ptp4l0-21swapper/222:04:302
2847191460,3ptp4l0-21swapper/321:56:283
2847191450,6ptp4l0-21swapper/020:25:180
2847191450,4ptp4l6552-21apt-get21:10:163
2847191450,4ptp4l31716-21ls23:10:301
2847191450,4ptp4l26805-21ls21:50:282
2847191450,4ptp4l16033-21apt-get21:30:133
2847191450,3ptp4l0-21swapper/223:16:332
2847191440,9ptp4l0-21swapper/023:42:310
2847191440,5ptp4l4535-21memory19:55:240
2847191440,5ptp4l1461899cyclictest21:15:171
2847191440,4ptp4l21598-21apt-get19:25:113
2847191440,4ptp4l21058-21meminfo20:30:220
2847191440,4ptp4l0-21swapper/300:32:333
2847191440,4ptp4l0-21swapper/219:25:122
2847191440,3ptp4l27611-21apt-get21:55:170
2847191440,3ptp4l0-21swapper/320:15:213
2847191440,3ptp4l0-21swapper/223:30:042
2847191440,3ptp4l0-21swapper/223:30:042
2847191440,10ptp4l0-21swapper/219:37:492
2847191430,9ptp4l0-21swapper/222:08:172
2847191430,5ptp4l1263-21df_inode00:25:151
2847191430,5ptp4l0-21swapper/219:20:212
2847191430,4ptp4l952-21apt-get00:25:133
2847191430,4ptp4l32260-21apt-get22:05:171
2847191430,4ptp4l0-21swapper/220:10:282
2847191430,4ptp4l0-21swapper/021:05:180
2847191430,3ptp4l25153-21ls19:30:241
2847191430,3ptp4l11896-21apt-get23:40:133
2847191430,10ptp4l0-21swapper/021:44:080
1461899431,6cyclictest26841-21irqstats00:10:231
2847191420,9ptp4l0-21swapper/221:16:132
2847191420,9ptp4l0-21swapper/022:53:190
2847191420,5ptp4l23442-21needreboot20:35:240
2847191420,5ptp4l21142-21/usr/sbin/munin21:40:191
2847191420,5ptp4l0-21swapper/222:15:212
2847191420,5ptp4l0-21swapper/022:25:200
2847191420,5ptp4l0-21swapper/022:25:200
2847191420,5ptp4l0-21swapper/020:55:230
2847191420,4ptp4l5365-21ntp_states21:05:263
2847191420,4ptp4l27759-21apt-get23:05:171
2847191420,4ptp4l25613-21diskstats21:50:161
2847191420,4ptp4l17172-21df19:15:141
2847191420,4ptp4l1522-21diskstats19:50:182
2847191420,4ptp4l1293-21snmpd19:15:333
2847191420,4ptp4l0-21swapper/319:22:163
2847191420,4ptp4l0-21swapper/219:56:452
2847191420,3ptp4l3655-21df_inode00:30:190
2847191420,3ptp4l20676-21apt-get21:40:143
2847191420,3ptp4l19600-21df_inode19:20:131
2847191420,3ptp4l18916-21ntp_states20:25:263
2847191420,3ptp4l11963-21ntp_states20:10:251
2847191420,3ptp4l0-21swapper/320:57:163
41798410,4rtkit-daemon0-21swapper/223:10:172
2847191410,8ptp4l0-21swapper/122:48:231
2847191410,5ptp4l23098-21/usr/sbin/munin22:55:213
2847191410,5ptp4l23098-21/usr/sbin/munin22:55:213
2847191410,5ptp4l19022-21tr23:55:160
2847191410,5ptp4l10688-21ntpq23:35:240
2847191410,5ptp4l0-21swapper/320:09:463
2847191410,5ptp4l0-21swapper/221:40:152
2847191410,5ptp4l0-21swapper/220:25:202
2847191410,5ptp4l0-21swapper/023:15:150
2847191410,5ptp4l0-21swapper/023:05:170
2847191410,5ptp4l0-21swapper/022:05:150
2847191410,5ptp4l0-21swapper/021:15:220
2847191410,4ptp4l31430-21apt-get20:55:042
2847191410,4ptp4l26422-21users20:40:312
2847191410,4ptp4l19065-21iostat22:45:180
2847191410,4ptp4l0-21swapper/323:00:133
2847191410,4ptp4l0-21swapper/322:29:533
2847191410,4ptp4l0-21swapper/322:29:533
2847191410,4ptp4l0-21swapper/320:35:253
2847191410,4ptp4l0-21swapper/320:23:243
2847191410,4ptp4l0-21swapper/319:31:413
2847191410,4ptp4l0-21swapper/300:35:173
2847191410,4ptp4l0-21swapper/300:13:323
2847191410,4ptp4l0-21swapper/222:35:132
2847191410,4ptp4l0-21swapper/123:35:161
2847191410,4ptp4l0-21swapper/122:50:211
2847191410,4ptp4l0-21swapper/121:39:081
2847191410,4ptp4l0-21swapper/120:29:331
2847191410,4ptp4l0-21swapper/119:55:001
2847191410,4ptp4l0-21swapper/119:45:191
2847191410,4ptp4l0-21swapper/023:30:210
2847191410,4ptp4l0-21swapper/023:30:210
2847191410,4ptp4l0-21swapper/021:50:130
2847191410,4ptp4l0-21swapper/020:05:280
2847191410,4ptp4l0-21swapper/019:41:400
2847191410,4ptp4l0-21swapper/019:25:090
2847191410,4ptp4l0-21swapper/019:21:400
2847191410,4ptp4l0-21swapper/019:17:290
2847191410,4ptp4l0-21swapper/000:09:080
2847191410,4ptp4l0-21swapper/000:00:530
2847191410,3ptp4l8844-21diskstats20:05:191
2847191410,3ptp4l6608-21hddtemp_smartct20:00:201
2847191410,3ptp4l5967-21diskstats00:35:180
2847191410,3ptp4l341-21df23:15:163
2847191410,3ptp4l30855-21apt-get00:20:162
2847191410,3ptp4l30222-21irqstats20:50:210
2847191410,3ptp4l27491-21hddtemp_smartct20:45:183
2847191410,3ptp4l22292-21ntp_states00:00:251
2847191410,3ptp4l20100-21apt-get20:30:143
2847191410,3ptp4l17305-21ntp_states22:40:231
2847191410,3ptp4l15925-21hddtemp_smartct20:20:180
2847191410,3ptp4l0-21swapper/120:30:271
2847191410,2ptp4l1793-21llvmpipe-023:25:592
2847191410,10ptp4l0-21swapper/122:55:371
2847191410,10ptp4l0-21swapper/122:55:371
1461999412,37cyclictest0-21swapper/220:00:302
2847191400,6ptp4l0-21swapper/320:50:313
2847191400,5ptp4l15099-21grep23:45:242
2847191400,5ptp4l0-21swapper/322:45:153
2847191400,5ptp4l0-21swapper/123:50:191
2847191400,5ptp4l0-21swapper/122:34:171
2847191400,5ptp4l0-21swapper/120:50:231
2847191400,5ptp4l0-21swapper/021:35:210
2847191400,5ptp4l0-21swapper/020:45:130
2847191400,4ptp4l16234-21/usr/sbin/munin21:30:150
2847191400,4ptp4l1416-21grep19:50:170
2847191400,4ptp4l0-21swapper/323:55:203
2847191400,4ptp4l0-21swapper/323:30:173
2847191400,4ptp4l0-21swapper/323:30:173
2847191400,4ptp4l0-21swapper/323:20:283
2847191400,4ptp4l0-21swapper/321:15:023
2847191400,4ptp4l0-21swapper/321:00:313
2847191400,4ptp4l0-21swapper/319:55:273
2847191400,4ptp4l0-21swapper/319:45:173
2847191400,4ptp4l0-21swapper/319:41:373
2847191400,4ptp4l0-21swapper/300:00:223
2847191400,4ptp4l0-21swapper/223:40:012
2847191400,4ptp4l0-21swapper/223:20:182
2847191400,4ptp4l0-21swapper/220:15:342
2847191400,4ptp4l0-21swapper/122:19:131
2847191400,4ptp4l0-21swapper/121:49:341
2847191400,4ptp4l0-21swapper/121:49:341
2847191400,4ptp4l0-21swapper/120:36:241
2847191400,4ptp4l0-21swapper/120:16:281
2847191400,4ptp4l0-21swapper/119:55:171
2847191400,4ptp4l0-21swapper/119:25:011
2847191400,4ptp4l0-21swapper/119:10:261
2847191400,4ptp4l0-21swapper/100:38:421
2847191400,4ptp4l0-21swapper/023:28:500
2847191400,4ptp4l0-21swapper/023:22:420
2847191400,4ptp4l0-21swapper/022:55:270
2847191400,4ptp4l0-21swapper/022:55:270
2847191400,4ptp4l0-21swapper/022:40:250
2847191400,4ptp4l0-21swapper/022:20:170
2847191400,4ptp4l0-21swapper/022:02:510
2847191400,4ptp4l0-21swapper/020:16:140
2847191400,4ptp4l0-21swapper/020:10:070
2847191400,4ptp4l0-21swapper/020:02:210
2847191400,4ptp4l0-21swapper/019:35:280
2847191400,4ptp4l0-21swapper/019:30:240
2847191400,4ptp4l0-21swapper/019:10:120
2847191400,4ptp4l0-21swapper/000:11:570
2847191400,3ptp4l32598-21apt-get23:15:141
2847191400,3ptp4l29642-21ntp_states00:15:252
2847191400,3ptp4l27789-21python19:35:281
2847191400,3ptp4l10190-21memory22:25:211
2847191400,3ptp4l10190-21memory22:25:211
2847191400,2ptp4l16064-21iostat_ios20:20:201
2847191390,5ptp4l27049-21unixbench_multi23:00:301
2847191390,4ptp4l7055-21iwlist21:10:200
2847191390,4ptp4l1461799cyclictest23:00:450
2847191390,4ptp4l0-21swapper/323:25:153
2847191390,4ptp4l0-21swapper/322:20:273
2847191390,4ptp4l0-21swapper/321:50:153
2847191390,4ptp4l0-21swapper/321:20:243
2847191390,4ptp4l0-21swapper/320:40:313
2847191390,4ptp4l0-21swapper/320:01:143
2847191390,4ptp4l0-21swapper/300:05:213
2847191390,4ptp4l0-21swapper/223:00:172
2847191390,4ptp4l0-21swapper/222:45:252
2847191390,4ptp4l0-21swapper/222:10:222
2847191390,4ptp4l0-21swapper/221:39:022
2847191390,4ptp4l0-21swapper/200:25:432
2847191390,4ptp4l0-21swapper/200:11:332
2847191390,4ptp4l0-21swapper/123:40:181
2847191390,4ptp4l0-21swapper/123:34:191
2847191390,4ptp4l0-21swapper/123:34:191
2847191390,4ptp4l0-21swapper/122:02:521
2847191390,4ptp4l0-21swapper/121:55:091
2847191390,4ptp4l0-21swapper/121:32:141
2847191390,4ptp4l0-21swapper/121:25:121
2847191390,4ptp4l0-21swapper/121:21:211
2847191390,4ptp4l0-21swapper/120:46:571
2847191390,4ptp4l0-21swapper/120:40:281
2847191390,4ptp4l0-21swapper/100:20:351
2847191390,4ptp4l0-21swapper/023:47:580
2847191390,4ptp4l0-21swapper/022:30:010
2847191390,4ptp4l0-21swapper/022:15:150
2847191390,4ptp4l0-21swapper/022:10:230
2847191390,4ptp4l0-21swapper/021:28:050
2847191390,4ptp4l0-21swapper/000:27:370
2847191390,4ptp4l0-21swapper/000:16:160
2847191390,3ptp4l3489-21expr00:30:181
2847191390,3ptp4l28752-21df_abs00:15:161
2847191390,3ptp4l0-21swapper/123:25:191
2847191390,3ptp4l0-21swapper/121:10:271
2847191390,3ptp4l0-21swapper/119:40:201
2847191390,3ptp4l0-21swapper/021:45:230
2847191390,3ptp4l0-21swapper/021:45:230
2847191380,4ptp4l8142-21kworker/1:123:55:161
2847191380,4ptp4l0-21swapper/323:52:343
2847191380,4ptp4l0-21swapper/323:45:203
2847191380,4ptp4l0-21swapper/323:10:193
2847191380,4ptp4l0-21swapper/121:00:191
2847191380,4ptp4l0-21swapper/100:05:481
2847191380,4ptp4l0-21swapper/022:35:230
2847191380,4ptp4l0-21swapper/021:00:140
2847191380,3ptp4l0-21swapper/322:15:173
2847191380,3ptp4l0-21swapper/021:21:430
41798370,12rtkit-daemon0-21swapper/319:05:133
2847191370,3ptp4l0-21swapper/023:50:230
139652113,4sleep20-21swapper/219:05:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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