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2026-05-31 - 11:16
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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 Sun May 31, 2026 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
66442950,7sleep32993599cyclictest19:40:393
66442950,7sleep32993599cyclictest19:40:393
134491840,4ptp4l0-21swapper/100:35:281
264242810,4sleep20-21swapper/219:44:072
264242810,4sleep20-21swapper/219:44:072
241342740,4sleep124116-21sh19:39:531
134491680,5ptp4l7950-21tee19:44:301
134491680,5ptp4l7950-21tee19:44:301
258982660,1sleep125899-21expr19:16:261
175692660,3sleep317572-21sh19:15:073
109162660,5sleep210879-21sh19:15:342
173312630,6sleep30-21swapper/300:30:163
134491630,6ptp4l7374-21tee19:41:390
134491630,6ptp4l7374-21tee19:41:390
134491630,10ptp4l20555-21execl19:22:580
172692620,3sleep317267-21sh19:39:473
134491620,4ptp4l8349-21grep19:11:502
134491620,4ptp4l8349-21grep19:11:502
85782610,6sleep02993299cyclictest19:16:410
315182610,4sleep0101ktimersoftd/019:11:300
315182610,4sleep0101ktimersoftd/019:11:300
134491610,4ptp4l18149-21df19:55:141
134491610,19ptp4l4591-21df_inode20:35:151
134491590,9ptp4l0-21swapper/220:00:242
134491590,3ptp4l0-21swapper/021:57:350
134491590,20ptp4l33-21ksoftirqd/221:06:382
79142580,5sleep17915-21irqrtprio23:00:191
134491580,4ptp4l0-21swapper/220:33:502
134491580,4ptp4l0-21swapper/119:30:211
134491580,4ptp4l0-21swapper/021:27:440
134491580,3ptp4l0-21swapper/023:30:330
204282570,6sleep12993399cyclictest19:21:431
134491570,4ptp4l0-21swapper/320:09:243
134491570,4ptp4l0-21swapper/222:10:022
134491570,3ptp4l0-21swapper/222:58:322
134491570,3ptp4l0-21swapper/122:05:591
78712560,5sleep30-21swapper/319:12:503
78712560,5sleep30-21swapper/319:12:503
41992560,4sleep14198-21rt-features00:00:251
134491560,4ptp4l0-21swapper/019:55:150
134491560,4ptp4l0-21swapper/019:33:510
134491560,16ptp4l0-21swapper/000:25:130
134491550,15ptp4l0-21swapper/023:05:180
134491540,4ptp4l0-21swapper/223:49:262
134491540,4ptp4l0-21swapper/223:44:442
134491540,3ptp4l0-21swapper/221:31:402
134491540,3ptp4l0-21swapper/122:27:391
134491540,2ptp4l0-21swapper/019:29:480
134491540,13ptp4l0-21swapper/022:35:160
134491530,3ptp4l0-21swapper/221:55:252
134491530,18ptp4l0-21swapper/323:10:573
134491520,8ptp4l0-21swapper/119:07:231
134491520,4ptp4l0-21swapper/220:18:292
134491520,4ptp4l0-21swapper/220:09:022
134491520,4ptp4l0-21swapper/023:25:160
134491520,4ptp4l0-21swapper/019:36:050
134491520,3ptp4l0-21swapper/120:19:511
134491520,3ptp4l0-21swapper/000:05:110
134491510,4ptp4l0-21swapper/222:38:542
134491510,4ptp4l0-21swapper/221:21:152
134491510,4ptp4l0-21swapper/220:46:062
134491510,4ptp4l0-21swapper/219:25:092
134491510,4ptp4l0-21swapper/021:08:040
204552500,2sleep320426-21execl19:22:053
134491500,4ptp4l0-21swapper/222:53:242
134491500,4ptp4l0-21swapper/222:22:342
134491500,4ptp4l0-21swapper/222:09:182
134491500,2ptp4l19981-21whetstone-doubl19:20:322
134491490,4ptp4l6920-21cat22:59:590
134491490,4ptp4l0-21swapper/320:59:513
134491490,4ptp4l0-21swapper/223:58:382
134491490,4ptp4l0-21swapper/121:25:011
134491490,4ptp4l0-21swapper/121:22:291
134491490,4ptp4l0-21swapper/019:05:400
134491490,4ptp4l0-21swapper/000:01:160
134491490,3ptp4l25414-21pipe19:32:252
134491490,3ptp4l0-21swapper/223:32:032
134491490,13ptp4l0-21swapper/000:30:180
134491480,4ptp4l0-21swapper/321:17:263
134491480,4ptp4l0-21swapper/321:14:483
134491480,4ptp4l0-21swapper/221:01:102
134491480,4ptp4l0-21swapper/219:47:032
134491480,4ptp4l0-21swapper/023:44:010
134491480,3ptp4l0-21swapper/223:54:402
134491480,3ptp4l0-21swapper/220:37:472
134491480,3ptp4l0-21swapper/023:24:230
134491480,3ptp4l0-21swapper/020:12:580
134491470,4ptp4l0-21swapper/321:07:533
134491470,4ptp4l0-21swapper/223:09:162
134491470,4ptp4l0-21swapper/122:50:471
134491470,4ptp4l0-21swapper/121:32:291
134491470,4ptp4l0-21swapper/023:49:420
134491470,3ptp4l0-21swapper/022:20:020
134491460,3ptp4l2993299cyclictest23:57:230
134491460,3ptp4l0-21swapper/119:49:321
134491450,5ptp4l0-21swapper/100:15:251
134491450,4ptp4l13498-21apt-get20:55:132
134491450,4ptp4l0-21swapper/319:05:523
134491450,4ptp4l0-21swapper/022:48:230
134491450,3ptp4l0-21swapper/200:02:112
134491450,3ptp4l0-21swapper/023:19:560
29935994438,3cyclictest41-21ksoftirqd/320:30:013
134691440,11getstats0-21swapper/021:16:080
134691440,11getstats0-21swapper/020:01:040
134491440,9ptp4l0-21swapper/223:12:462
134491440,9ptp4l0-21swapper/200:37:182
134491440,9ptp4l0-21swapper/122:40:261
134491440,9ptp4l0-21swapper/122:40:261
134491440,4ptp4l0-21swapper/323:26:523
134491440,3ptp4l0-21swapper/220:40:302
134491440,10ptp4l0-21swapper/200:21:542
134491440,10ptp4l0-21swapper/020:26:290
29935994338,3cyclictest41-21ksoftirqd/323:40:013
134691430,11getstats0-21swapper/023:10:370
134691430,11getstats0-21swapper/021:04:130
134691430,11getstats0-21swapper/000:38:410
134691430,10getstats0-21swapper/021:13:520
134691430,10getstats0-21swapper/020:55:490
134491430,9ptp4l0-21swapper/219:56:492
134491430,9ptp4l0-21swapper/020:53:060
134491430,9ptp4l0-21swapper/020:15:580
134491430,5ptp4l0-21swapper/219:05:512
134491430,4ptp4l9046-21apt-get21:55:103
134491430,4ptp4l7383-21df23:00:142
134491430,4ptp4l0-21swapper/119:25:441
134491430,3ptp4l32699-21grep19:45:030
134491430,3ptp4l2725-21syscall19:38:532
134491430,3ptp4l0-21swapper/321:47:483
134491430,3ptp4l0-21swapper/021:43:140
134491430,10ptp4l0-21swapper/220:51:242
134691420,10getstats0-21swapper/023:02:070
134691420,10getstats0-21swapper/021:54:510
134691420,10getstats0-21swapper/021:39:200
134691420,10getstats0-21swapper/021:34:530
134691420,10getstats0-21swapper/020:38:430
134491420,4ptp4l4462-21apt-get21:45:142
134491420,4ptp4l2318-21gnome-shell22:47:591
134491420,4ptp4l2149-21df20:30:120
134491420,4ptp4l0-21swapper/022:12:360
134491420,4ptp4l0-21swapper/000:13:080
29935994135,3cyclictest41-21ksoftirqd/319:45:073
134691410,10getstats30306-21iostat20:20:170
134691410,10getstats0-21swapper/023:36:450
134691410,10getstats0-21swapper/022:33:580
134691410,10getstats0-21swapper/021:23:140
134691410,10getstats0-21swapper/020:44:250
134691410,10getstats0-21swapper/020:06:040
134491410,5ptp4l26232-21ntp_states20:10:221
134491410,5ptp4l0-21swapper/322:50:113
134491410,5ptp4l0-21swapper/221:35:132
134491410,5ptp4l0-21swapper/120:25:201
134491410,4ptp4l3555-21ls20:30:261
134491410,4ptp4l3284-21ntp_states21:40:233
134491410,4ptp4l23616-21hddtemp_smartct22:25:160
134491410,4ptp4l1938-21apt-get20:30:103
134491410,4ptp4l18567-21apt-get22:15:131
134491410,4ptp4l16951-21iostat23:20:182
134491410,4ptp4l14636-21iostat_ios23:15:183
134491410,4ptp4l13305-21apt-get22:03:300
134491410,4ptp4l11197-21apt-get20:50:121
134491410,4ptp4l0-21swapper/322:03:333
134491410,4ptp4l0-21swapper/320:39:183
134491410,4ptp4l0-21swapper/319:29:523
134491410,4ptp4l0-21swapper/223:39:422
134491410,3ptp4l30208-21apt-get23:50:041
134491410,3ptp4l22764-21apt-get21:15:162
134491410,3ptp4l0-21swapper/220:26:462
29935994035,2cyclictest41-21ksoftirqd/322:20:013
29933994035,3cyclictest25-21ksoftirqd/100:30:011
29933994034,3cyclictest25-21ksoftirqd/123:20:001
29933994034,3cyclictest25-21ksoftirqd/119:12:521
29933994034,3cyclictest25-21ksoftirqd/119:12:521
134491400,5ptp4l0-21swapper/323:30:143
134491400,5ptp4l0-21swapper/321:35:153
134491400,5ptp4l0-21swapper/123:55:161
134491400,5ptp4l0-21swapper/123:05:181
134491400,5ptp4l0-21swapper/122:03:311
134491400,5ptp4l0-21swapper/121:35:191
134491400,5ptp4l0-21swapper/121:05:191
134491400,5ptp4l0-21swapper/100:10:231
134491400,5ptp4l0-21swapper/023:55:000
134491400,4ptp4l30405-21df_inode22:40:140
134491400,4ptp4l30405-21df_inode22:40:140
134491400,4ptp4l3010-21irqstats21:40:191
134491400,4ptp4l18052-21apt-get22:15:020
134491400,4ptp4l16983-21python19:50:250
134491400,4ptp4l14649-21meminfo22:05:170
134491400,4ptp4l12658-21diskstats00:20:141
134491400,4ptp4l0-21swapper/321:00:173
134491400,4ptp4l0-21swapper/320:40:193
134491400,4ptp4l0-21swapper/319:30:363
134491400,4ptp4l0-21swapper/300:10:213
134491400,4ptp4l0-21swapper/222:45:502
134491400,4ptp4l0-21swapper/222:41:112
134491400,4ptp4l0-21swapper/222:41:112
134491400,4ptp4l0-21swapper/221:50:122
134491400,4ptp4l0-21swapper/221:29:262
134491400,4ptp4l0-21swapper/200:30:272
134491400,4ptp4l0-21swapper/200:13:032
134491400,4ptp4l0-21swapper/122:10:191
134491400,4ptp4l0-21swapper/121:55:121
134491400,4ptp4l0-21swapper/120:45:201
134491400,3ptp4l30691-21memory20:20:201
134491400,3ptp4l24448-21ntp_states23:35:251
134491390,5ptp4l25758-21apt-config23:40:011
134491390,5ptp4l1301-21snmpd23:04:013
134491390,5ptp4l0-21swapper/321:20:133
134491390,5ptp4l0-21swapper/320:50:203
134491390,5ptp4l0-21swapper/320:15:263
134491390,5ptp4l0-21swapper/200:18:322
134491390,5ptp4l0-21swapper/123:11:071
134491390,5ptp4l0-21swapper/121:14:511
134491390,4ptp4l8900-21/usr/sbin/munin20:45:120
134491390,4ptp4l2993399cyclictest21:50:131
134491390,4ptp4l0-21swapper/323:55:223
134491390,4ptp4l0-21swapper/323:40:233
134491390,4ptp4l0-21swapper/322:55:123
134491390,4ptp4l0-21swapper/322:45:173
134491390,4ptp4l0-21swapper/321:25:163
134491390,4ptp4l0-21swapper/320:10:293
134491390,4ptp4l0-21swapper/300:26:033
134491390,4ptp4l0-21swapper/300:00:133
134491390,4ptp4l0-21swapper/223:15:402
134491390,4ptp4l0-21swapper/222:34:382
134491390,4ptp4l0-21swapper/222:26:342
134491390,4ptp4l0-21swapper/222:15:542
134491390,4ptp4l0-21swapper/222:01:582
134491390,4ptp4l0-21swapper/220:14:142
134491390,4ptp4l0-21swapper/200:25:182
134491390,4ptp4l0-21swapper/123:46:131
134491390,4ptp4l0-21swapper/122:55:131
134491390,4ptp4l0-21swapper/122:36:371
134491390,4ptp4l0-21swapper/122:30:251
134491390,4ptp4l0-21swapper/122:20:251
134491390,4ptp4l0-21swapper/121:15:031
134491390,4ptp4l0-21swapper/121:00:241
134491390,4ptp4l0-21swapper/120:03:321
134491390,4ptp4l0-21swapper/119:50:181
134491390,4ptp4l0-21swapper/100:30:271
134491390,4ptp4l0-21swapper/022:50:200
134491390,4ptp4l0-21swapper/000:21:450
134491390,3ptp4l6374-21ls00:05:201
134491390,3ptp4l22910-21df_inode20:05:151
134491390,3ptp4l19579-21irqstats23:25:191
134491390,3ptp4l14449-21memory20:55:201
134491390,3ptp4l10464-21hddtemp_smartct00:15:160
134491390,3ptp4l0-21swapper/300:15:293
134491390,3ptp4l0-21swapper/223:25:222
134491390,2ptp4l22526-21ls23:30:251
134491380,5ptp4l29789-21head23:45:293
134491380,5ptp4l0-21swapper/323:50:153
134491380,4ptp4l0-21swapper/322:38:073
134491380,4ptp4l0-21swapper/322:26:593
134491380,4ptp4l0-21swapper/322:21:273
134491380,4ptp4l0-21swapper/322:09:553
134491380,4ptp4l0-21swapper/321:53:223
134491380,4ptp4l0-21swapper/321:30:153
134491380,4ptp4l0-21swapper/320:45:183
134491380,4ptp4l0-21swapper/320:22:553
134491380,4ptp4l0-21swapper/319:55:323
134491380,4ptp4l0-21swapper/300:20:323
134491380,4ptp4l0-21swapper/300:09:193
134491380,4ptp4l0-21swapper/200:06:222
134491380,4ptp4l0-21swapper/121:46:321
134491380,4ptp4l0-21swapper/120:40:111
134491380,4ptp4l0-21swapper/021:46:170
134491380,3ptp4l16783-21fschecks_time23:20:151
134491380,3ptp4l0-21swapper/320:00:253
134491380,3ptp4l0-21swapper/221:40:252
134491380,3ptp4l0-21swapper/221:12:502
134491380,3ptp4l0-21swapper/220:23:142
134491370,4ptp4l16044-21fschecks_time19:50:163
134491370,4ptp4l0-21swapper/322:40:333
134491370,4ptp4l0-21swapper/322:40:333
134491370,4ptp4l0-21swapper/322:10:393
134491370,4ptp4l0-21swapper/219:50:022
134491370,3ptp4l0-21swapper/323:05:053
134491370,3ptp4l0-21swapper/322:34:593
134491370,3ptp4l0-21swapper/300:36:043
29935993631,3cyclictest41-21ksoftirqd/323:20:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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