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2025-11-26 - 04:46
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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 Wed Nov 26, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
261621410,6sleep22346599cyclictest21:50:262
2796321100,5sleep027960-21ls19:20:000
2847191620,9ptp4l0-21swapper/219:36:152
2346699628,11cyclictest1299-21runrttasks19:28:063
23466996213,12cyclictest2847191ptp4l22:10:303
2847191600,4ptp4l0-21swapper/119:05:181
2847191600,4ptp4l0-21swapper/021:55:240
2847191590,4ptp4l0-21swapper/121:57:461
2847191590,3ptp4l0-21swapper/021:10:230
2346699599,46cyclictest26744-21/usr/sbin/munin20:25:183
2847191580,4ptp4l0-21swapper/222:10:282
2847191580,4ptp4l0-21swapper/019:35:160
2847191580,3ptp4l0-21swapper/222:31:382
2847191580,3ptp4l0-21swapper/220:55:462
2847191570,4ptp4l0-21swapper/222:40:472
2847191570,4ptp4l0-21swapper/221:08:192
2847191570,4ptp4l0-21swapper/221:08:192
2346699579,11cyclictest10952-21taskset23:19:413
2847191560,4ptp4l0-21swapper/222:53:482
2847191560,4ptp4l0-21swapper/221:23:182
2847191560,3ptp4l0-21swapper/120:40:241
2847191560,3ptp4l0-21swapper/022:15:260
2847191550,4ptp4l0-21swapper/221:29:352
2847191550,4ptp4l0-21swapper/220:13:072
2847191540,4ptp4l0-21swapper/221:41:282
2847191540,3ptp4l0-21swapper/000:07:280
2346699545,16cyclictest0-21swapper/320:20:273
2346699544,11cyclictest4470-21irqrtprio21:55:183
2847191530,4ptp4l0-21swapper/220:01:282
2847191530,4ptp4l0-21swapper/220:01:272
2847191530,4ptp4l0-21swapper/219:52:402
2847191530,4ptp4l0-21swapper/019:46:180
2847191530,3ptp4l0-21swapper/019:14:150
2847191530,3ptp4l0-21swapper/000:02:130
2346699533,18cyclictest0-21swapper/322:25:283
23466995311,38cyclictest9306-21/usr/sbin/munin22:05:223
2847191520,4ptp4l0-21swapper/222:27:272
2847191520,4ptp4l0-21swapper/222:00:412
2346499514,10cyclictest11509-21tail21:00:251
2346499513,13cyclictest0-21swapper/123:21:101
2346499511,18cyclictest29443-21cat20:30:201
2346499511,18cyclictest29443-21cat20:30:201
2847191500,4ptp4l0-21swapper/223:54:392
2847191500,4ptp4l0-21swapper/222:36:252
2847191500,4ptp4l0-21swapper/222:23:332
2847191500,4ptp4l0-21swapper/021:22:070
2847191500,3ptp4l0-21swapper/000:33:320
2346699509,9cyclictest2993-21/usr/sbin/munin19:35:293
2346499507,7cyclictest0-21swapper/100:10:181
2346499507,7cyclictest0-21swapper/100:10:181
2847191490,4ptp4l0-21swapper/000:39:260
2346699496,11cyclictest4540-21phc2sys20:45:253
2346499491,12cyclictest0-21swapper/122:35:231
2346699485,6cyclictest0-21swapper/321:07:493
2346699485,6cyclictest0-21swapper/321:07:493
2346499486,6cyclictest0-21swapper/123:55:251
2346499484,12cyclictest0-21swapper/120:15:081
2847191470,4ptp4l0-21swapper/022:32:090
2847191470,3ptp4l0-21swapper/322:52:343
2346499475,15cyclictest1778-21gnome-shell19:43:581
2346499475,13cyclictest1778-21gnome-shell22:52:591
2346499474,6cyclictest31774-21/usr/sbin/munin22:55:151
2849491460,1getstats181-21jbd2/mmcblk1p1-19:31:022
2847191460,6ptp4l1778-21gnome-shell00:16:590
2847191460,4ptp4l0-21swapper/222:09:252
2847191460,4ptp4l0-21swapper/120:13:331
2847191460,3ptp4l0-21swapper/100:02:471
2847191460,12ptp4l1799migration/022:14:520
2346699464,11cyclictest1893-21awk21:50:183
23466994612,31cyclictest15003-21taskset22:17:013
2346499468,6cyclictest0-21swapper/122:15:201
2346499465,14cyclictest1778-21gnome-shell23:05:591
2346499465,13cyclictest1778-21gnome-shell23:18:591
2346499465,13cyclictest1778-21gnome-shell20:27:581
2346499465,13cyclictest1778-21gnome-shell20:22:581
2346499465,13cyclictest1778-21gnome-shell19:52:581
2346499465,13cyclictest1778-21gnome-shell00:31:591
2847191450,9ptp4l0-21swapper/223:19:572
2847191450,4ptp4l24480-21apt-get21:30:140
2346699456,6cyclictest0-21swapper/320:56:293
2346699455,5cyclictest0-21swapper/322:03:023
2346499455,14cyclictest1778-21gnome-shell21:25:581
2346499455,14cyclictest1778-21gnome-shell19:47:581
2346499455,14cyclictest1778-21gnome-shell00:21:591
2346499451,16cyclictest27204-21fschecks_time21:35:201
220642453,13sleep022075-21memory19:05:210
2847191440,9ptp4l0-21swapper/223:57:192
2847191440,9ptp4l0-21swapper/220:32:162
2847191440,9ptp4l0-21swapper/220:32:162
2847191440,9ptp4l0-21swapper/220:29:002
2847191440,9ptp4l0-21swapper/200:21:392
2847191440,9ptp4l0-21swapper/200:06:392
2847191440,7ptp4l1778-21gnome-shell00:39:582
2847191440,4ptp4l23868-21apt-get20:20:132
2847191440,4ptp4l0-21swapper/220:35:032
2847191440,4ptp4l0-21swapper/000:13:110
2847191440,4ptp4l0-21swapper/000:13:110
2847191440,3ptp4l2346399cyclictest19:24:380
2847191440,3ptp4l0-21swapper/120:54:501
2847191440,3ptp4l0-21swapper/119:27:301
2346699446,6cyclictest0-21swapper/300:18:133
2346699445,11cyclictest0-21swapper/321:42:243
2346499444,6cyclictest11878-21proc_pri22:10:281
2346499444,6cyclictest0-21swapper/120:07:181
2346499442,12cyclictest0-21swapper/122:29:151
2847191430,9ptp4l0-21swapper/223:41:502
2847191430,9ptp4l0-21swapper/223:32:182
2847191430,9ptp4l0-21swapper/221:10:582
2847191430,8ptp4l9673-21mailstats22:05:280
2847191430,8ptp4l0-21swapper/222:48:122
2847191430,5ptp4l13219-21meminfo19:55:203
2847191430,4ptp4l770-21apt-get20:40:130
2847191430,4ptp4l2346499cyclictest19:55:281
2847191430,4ptp4l16904-21apt-get20:05:110
2847191430,4ptp4l0-21swapper/023:51:140
2847191430,10ptp4l0-21swapper/221:34:512
2847191430,10ptp4l0-21swapper/219:11:472
2346699438,32cyclictest16493-21taskset20:02:573
2346699438,32cyclictest16493-21taskset20:02:573
2346699438,14cyclictest22088-21/usr/sbin/munin21:25:263
2346499435,13cyclictest1778-21gnome-shell19:21:581
2346499432,11cyclictest0-21swapper/122:20:531
2346499431,13cyclictest2847191ptp4l20:49:231
2847191420,9ptp4l0-21swapper/222:58:532
2847191420,5ptp4l8423-21hddtemp_smartct20:55:170
2847191420,5ptp4l583-21/usr/sbin/munin00:05:201
2847191420,5ptp4l0-21swapper/321:45:283
2847191420,5ptp4l0-21swapper/021:25:170
2847191420,4ptp4l5335-21apt-get19:40:122
2847191420,4ptp4l18494-21df_inode23:35:140
2847191420,4ptp4l12261-21apt-get19:55:120
2847191420,4ptp4l0-21swapper/323:59:283
2847191420,4ptp4l0-21swapper/020:04:280
2847191420,4ptp4l0-21swapper/020:04:270
2847191420,3ptp4l13224-21ls00:30:252
2847191420,3ptp4l0-21swapper/219:45:122
2346699427,15cyclictest0-21swapper/300:25:173
2346699426,7cyclictest21513-21/usr/sbin/munin20:15:273
2346699426,6cyclictest2849691phc2sys22:47:133
2346699426,5cyclictest0-21swapper/300:02:293
2346699426,10cyclictest0-21swapper/321:01:033
2346499427,7cyclictest0-21swapper/121:12:171
2346499426,6cyclictest0-21swapper/119:15:201
2847191410,9ptp4l0-21swapper/223:27:582
2847191410,8ptp4l0-21swapper/219:15:442
2847191410,6ptp4l0-21swapper/321:10:143
2847191410,5ptp4l25338-21irqstats21:30:231
2847191410,5ptp4l2363-21/usr/sbin/munin21:50:220
2847191410,5ptp4l15721-21cstates22:20:150
2847191410,5ptp4l12947-21diskstats21:05:150
2847191410,5ptp4l12947-21diskstats21:05:150
2847191410,5ptp4l0-21swapper/300:05:133
2847191410,5ptp4l0-21swapper/123:45:121
2847191410,5ptp4l0-21swapper/122:05:161
2847191410,5ptp4l0-21swapper/121:40:281
2847191410,4ptp4l4403-21df_inode23:05:170
2847191410,4ptp4l31646-21df21:45:151
2847191410,4ptp4l23968-21ntp_states23:45:272
2847191410,4ptp4l18953-21ntp_states22:25:220
2847191410,4ptp4l0-21swapper/223:20:172
2847191410,4ptp4l0-21swapper/221:01:532
2847191410,4ptp4l0-21swapper/219:55:192
2847191410,4ptp4l0-21swapper/219:07:002
2847191410,4ptp4l0-21swapper/123:51:171
2847191410,4ptp4l0-21swapper/119:30:231
2847191410,4ptp4l0-21swapper/021:15:320
2847191410,4ptp4l0-21swapper/019:50:190
2847191410,4ptp4l0-21swapper/000:25:190
2847191410,3ptp4l6807-21ntp_states20:50:252
2847191410,3ptp4l6187-21irqstats19:40:180
2847191410,3ptp4l608-21apt-get19:30:130
2847191410,3ptp4l1778-21gnome-shell00:35:591
2847191410,3ptp4l1663-21df_inode21:50:161
2847191410,3ptp4l0-21swapper/023:24:240
2847191410,3ptp4l0-21swapper/021:41:080
2346699419,29cyclictest27951-21apt-get19:20:023
2346699415,33cyclictest14061-21if_enp1s023:25:183
2346499415,7cyclictest9805-21diskstats00:25:161
2346499414,14cyclictest1778-21gnome-shell23:14:591
2346499412,12cyclictest0-21swapper/119:39:301
2847191400,5ptp4l0-21swapper/322:20:143
2847191400,5ptp4l0-21swapper/320:10:163
2847191400,5ptp4l0-21swapper/320:05:233
2847191400,5ptp4l0-21swapper/300:36:013
2847191400,4ptp4l7047-21hddtemp_smartct23:10:160
2847191400,4ptp4l28365-21irqstats23:55:200
2847191400,4ptp4l25045-21ntp_states20:20:240
2847191400,4ptp4l21094-21iostat_ios23:40:171
2847191400,4ptp4l18601-21python21:15:261
2847191400,4ptp4l0-21swapper/321:19:583
2847191400,4ptp4l0-21swapper/300:12:373
2847191400,4ptp4l0-21swapper/300:12:373
2847191400,4ptp4l0-21swapper/223:03:302
2847191400,4ptp4l0-21swapper/221:48:402
2847191400,4ptp4l0-21swapper/220:42:132
2847191400,4ptp4l0-21swapper/200:01:372
2847191400,4ptp4l0-21swapper/121:20:171
2847191400,4ptp4l0-21swapper/023:34:170
2847191400,4ptp4l0-21swapper/022:00:310
2847191400,4ptp4l0-21swapper/021:45:140
2847191400,4ptp4l0-21swapper/021:37:440
2847191400,4ptp4l0-21swapper/021:01:430
2847191400,4ptp4l0-21swapper/020:50:270
2847191400,4ptp4l0-21swapper/019:25:180
2847191400,4ptp4l0-21swapper/000:20:170
2847191400,3ptp4l7737-21ntp_states23:10:232
2847191400,3ptp4l31297-21hddtemp_smartct20:35:181
2847191400,3ptp4l2723-21ls23:00:201
2847191400,3ptp4l12941-21df_inode21:05:141
2847191400,3ptp4l12941-21df_inode21:05:141
2847191400,3ptp4l0-21swapper/023:44:090
2346699406,6cyclictest0-21swapper/320:39:253
2346499404,14cyclictest25287-21hddtemp_smartct22:40:181
2346499402,11cyclictest0-21swapper/123:39:071
2847191390,5ptp4l0-21swapper/321:20:043
2847191390,4ptp4l9467-21if_err_enp4s023:15:180
2847191390,4ptp4l0-21swapper/323:12:363
2847191390,4ptp4l0-21swapper/321:31:563
2847191390,4ptp4l0-21swapper/320:32:083
2847191390,4ptp4l0-21swapper/320:32:083
2847191390,4ptp4l0-21swapper/319:50:223
2847191390,4ptp4l0-21swapper/319:31:383
2847191390,4ptp4l0-21swapper/319:19:083
2847191390,4ptp4l0-21swapper/319:10:223
2847191390,4ptp4l0-21swapper/300:32:353
2847191390,4ptp4l0-21swapper/223:37:312
2847191390,4ptp4l0-21swapper/222:16:102
2847191390,4ptp4l0-21swapper/221:19:502
2847191390,4ptp4l0-21swapper/220:05:152
2847191390,4ptp4l0-21swapper/219:25:182
2847191390,4ptp4l0-21swapper/219:22:002
2847191390,4ptp4l0-21swapper/200:26:392
2847191390,4ptp4l0-21swapper/200:14:092
2847191390,4ptp4l0-21swapper/200:14:092
2847191390,4ptp4l0-21swapper/120:00:151
2847191390,4ptp4l0-21swapper/120:00:151
2847191390,4ptp4l0-21swapper/100:15:201
2847191390,4ptp4l0-21swapper/023:47:350
2847191390,4ptp4l0-21swapper/023:28:530
2847191390,4ptp4l0-21swapper/022:56:350
2847191390,4ptp4l0-21swapper/020:30:170
2847191390,4ptp4l0-21swapper/020:30:170
2847191390,4ptp4l0-21swapper/020:12:080
2847191390,3ptp4l8947-21memory20:55:211
2847191390,3ptp4l4832-21/usr/sbin/munin00:15:152
2847191390,3ptp4l26447-21df20:25:160
2847191390,3ptp4l16455-21iostat_ios23:30:181
2847191390,3ptp4l1293-21snmpd21:55:172
2847191390,3ptp4l0-21swapper/321:36:313
2847191390,3ptp4l0-21swapper/223:06:192
2847191390,3ptp4l0-21swapper/220:45:102
2847191390,3ptp4l0-21swapper/023:02:090
2847191390,3ptp4l0-21swapper/022:45:180
2847191390,3ptp4l0-21swapper/020:45:210
2847191390,2ptp4l25879-21ls22:40:230
2346699396,11cyclictest0-21swapper/323:45:173
2346499395,7cyclictest0-21swapper/122:00:171
2847191380,4ptp4l0-21swapper/322:30:553
2847191380,4ptp4l0-21swapper/319:45:293
2847191380,4ptp4l0-21swapper/319:40:123
2847191380,4ptp4l0-21swapper/319:06:583
2847191380,4ptp4l0-21swapper/300:20:293
2847191380,4ptp4l0-21swapper/122:45:131
2847191380,4ptp4l0-21swapper/022:50:010
2847191380,3ptp4l0-21swapper/323:31:123
2847191380,3ptp4l0-21swapper/221:35:202
2847191380,3ptp4l0-21swapper/220:16:212
2847191380,3ptp4l0-21swapper/123:25:171
2847191380,3ptp4l0-21swapper/122:30:111
2847191380,3ptp4l0-21swapper/022:35:290
2847191380,2ptp4l21527-21apt-get20:15:140
2346699385,5cyclictest0-21swapper/323:38:423
2346699385,5cyclictest0-21swapper/323:00:173
2847191370,4ptp4l0-21swapper/020:35:070
2847191370,3ptp4l0-21swapper/323:51:113
2847191370,3ptp4l0-21swapper/119:10:061
2346699375,5cyclictest2849691phc2sys22:59:423
2346699374,5cyclictest2847191ptp4l22:37:103
2847191360,3ptp4l0-21swapper/323:20:183
2346699368,15cyclictest5664-21/usr/sbin/munin20:50:253
2346699364,11cyclictest0-21swapper/322:44:143
2847191350,3ptp4l0-21swapper/320:41:583
2346699335,4cyclictest0-21swapper/323:09:173
2346699298,7cyclictest0-21swapper/323:40:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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