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2026-09-15 - 16:23
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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 Tue Sep 15, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3094821900,7sleep20-21swapper/207:05:182
2116921780,5sleep03254499cyclictest12:30:280
1846821380,3sleep00-21swapper/011:15:220
1846821380,3sleep00-21swapper/011:15:220
714621190,6sleep33254799cyclictest12:00:223
159672690,5sleep115971-21irqrtprio11:10:211
134491610,4ptp4l21207-21/usr/sbin/munin07:55:300
168042600,3sleep216809-21unixbench_multi11:10:302
134491600,4ptp4l0-21swapper/208:05:122
134491600,18ptp4l9980-21apt-get09:50:133
134491580,3ptp4l18922-21apt-get07:50:120
134491580,3ptp4l0-21swapper/009:25:270
134491570,4ptp4l0-21swapper/011:03:270
134491560,3ptp4l0-21swapper/208:18:062
134491560,3ptp4l0-21swapper/011:50:190
134491550,5ptp4l0-21swapper/208:10:142
134491550,3ptp4l8289-21/usr/sbin/munin07:25:231
134491550,3ptp4l0-21swapper/012:25:260
134491550,3ptp4l0-21swapper/010:05:240
134491540,4ptp4l0-21swapper/109:30:171
134491540,3ptp4l0-21swapper/110:05:201
134491530,4ptp4l0-21swapper/009:39:560
134491530,3ptp4l0-21swapper/111:20:321
134491530,3ptp4l0-21swapper/108:24:371
134491520,4ptp4l0-21swapper/307:30:453
134491520,4ptp4l0-21swapper/307:30:453
134491520,3ptp4l0-21swapper/108:14:121
134491520,3ptp4l0-21swapper/008:50:250
134491520,18ptp4l25-21ksoftirqd/109:16:231
134491520,12ptp4l0-21swapper/009:00:150
134491510,4ptp4l0-21swapper/008:22:280
134491510,4ptp4l0-21swapper/007:40:010
134491510,3ptp4l0-21swapper/207:44:422
134491510,3ptp4l0-21swapper/011:08:490
134491510,3ptp4l0-21swapper/008:30:320
134491510,12ptp4l30621-21grep07:05:160
134491500,4ptp4l0-21swapper/310:01:113
134491500,4ptp4l0-21swapper/107:30:441
134491500,4ptp4l0-21swapper/107:30:441
134491500,4ptp4l0-21swapper/012:09:400
134491500,3ptp4l0-21swapper/309:57:093
134491500,3ptp4l0-21swapper/309:37:123
134491500,17ptp4l9-21ksoftirqd/010:00:320
134491490,9ptp4l0-21swapper/107:05:121
134491490,4ptp4l0-21swapper/011:40:410
134491490,4ptp4l0-21swapper/011:25:560
134491490,4ptp4l0-21swapper/009:47:210
134491490,4ptp4l0-21swapper/007:38:470
134491490,3ptp4l0-21swapper/209:59:592
134491490,3ptp4l0-21swapper/010:39:190
134491480,9ptp4l0-21swapper/010:52:530
134491480,4ptp4l0-21swapper/311:23:233
134491480,4ptp4l0-21swapper/111:37:591
134491480,4ptp4l0-21swapper/109:01:351
134491480,4ptp4l0-21swapper/012:04:220
134491480,4ptp4l0-21swapper/008:27:100
134491480,4ptp4l0-21swapper/007:20:300
134491480,3ptp4l0-21swapper/110:35:281
134491480,3ptp4l0-21swapper/012:22:390
46198470,2rtkit-daemon460-21rtkit-daemon10:25:101
134491470,4ptp4l0-21swapper/110:20:181
134491470,4ptp4l0-21swapper/108:58:561
134491470,4ptp4l0-21swapper/008:36:000
134491470,4ptp4l0-21swapper/008:36:000
134491470,3ptp4l0-21swapper/312:11:023
134491470,3ptp4l0-21swapper/312:11:023
134491470,3ptp4l0-21swapper/112:00:241
134491470,3ptp4l0-21swapper/009:50:180
134491470,3ptp4l0-21swapper/009:24:280
134491470,3ptp4l0-21swapper/009:09:250
134491470,15ptp4l25-21ksoftirqd/111:56:201
134491460,4ptp4l0-21swapper/312:20:123
134491460,4ptp4l0-21swapper/010:10:460
134491460,4ptp4l0-21swapper/008:41:130
134491460,3ptp4l0-21swapper/011:12:540
134491460,3ptp4l0-21swapper/007:45:210
134491460,2ptp4l0-21swapper/307:58:043
134491460,15ptp4l25-21ksoftirqd/107:24:041
134491450,8ptp4l0-21swapper/310:14:003
134491450,7ptp4l32503-21cut07:10:012
134491450,4ptp4l5387-21apt-get09:40:123
134491450,4ptp4l0-21swapper/111:17:511
134491450,4ptp4l0-21swapper/111:17:511
134491450,4ptp4l0-21swapper/109:58:301
134491450,4ptp4l0-21swapper/010:31:400
134491450,4ptp4l0-21swapper/010:31:400
134491450,3ptp4l0-21swapper/109:47:301
32546994425,17cyclictest33-21ksoftirqd/207:55:002
32546994424,17cyclictest33-21ksoftirqd/207:40:002
134491440,9ptp4l0-21swapper/311:12:123
134491440,9ptp4l0-21swapper/310:30:413
134491440,9ptp4l0-21swapper/310:30:413
134491440,5ptp4l23800-21users11:25:281
134491440,5ptp4l0-21swapper/112:35:171
134491440,4ptp4l15395-21apt-get12:20:122
134491440,3ptp4l0-21swapper/009:30:260
134491440,3ptp4l0-21swapper/007:34:390
134491440,3ptp4l0-21swapper/007:34:390
134491440,3ptp4l0-21swapper/007:18:370
134491440,10ptp4l0-21swapper/309:24:443
32546994338,3cyclictest33-21ksoftirqd/210:40:002
32546994338,3cyclictest33-21ksoftirqd/209:00:002
134491430,9ptp4l0-21swapper/310:40:463
134491430,9ptp4l0-21swapper/308:49:423
134491430,9ptp4l0-21swapper/308:37:343
134491430,9ptp4l0-21swapper/308:37:343
134491430,9ptp4l0-21swapper/209:18:272
134491430,9ptp4l0-21swapper/208:34:222
134491430,9ptp4l0-21swapper/207:29:202
134491430,8ptp4l0-21swapper/307:18:073
134491430,5ptp4l17051-21hddtemp_smartct07:45:141
134491430,5ptp4l0-21swapper/308:25:133
134491430,5ptp4l0-21swapper/012:19:020
134491430,4ptp4l26576-21apt-get10:25:130
134491430,4ptp4l0-21swapper/210:25:422
134491430,4ptp4l0-21swapper/111:40:581
134491430,4ptp4l0-21swapper/108:42:341
134491430,4ptp4l0-21swapper/008:08:460
134491430,3ptp4l0-21swapper/012:12:170
134491430,3ptp4l0-21swapper/012:12:170
134491430,3ptp4l0-21swapper/009:56:080
134491430,2ptp4l121rcu_preempt08:49:581
134491430,10ptp4l0-21swapper/311:31:053
32546994237,3cyclictest33-21ksoftirqd/211:00:012
134491420,9ptp4l0-21swapper/309:18:483
134491420,9ptp4l0-21swapper/209:43:022
134491420,4ptp4l9539-21ntp_states12:05:233
134491420,4ptp4l9378-21memory12:05:211
134491420,4ptp4l18264-21iostat_ios12:25:181
134491420,4ptp4l15431-21memory08:50:211
134491420,4ptp4l10877-21diskstats11:00:161
134491420,4ptp4l0-21swapper/109:40:271
134491420,4ptp4l0-21swapper/109:22:031
134491420,4ptp4l0-21swapper/107:50:201
134491420,4ptp4l0-21swapper/107:10:231
134491420,3ptp4l8254-21apt-get10:55:130
134491420,3ptp4l3809-21apt-get11:55:123
32545994134,4cyclictest25-21ksoftirqd/108:35:001
134491410,7ptp4l0-21swapper/010:20:000
134491410,6ptp4l0-21swapper/212:25:162
134491410,5ptp4l8563-21diskstats10:55:161
134491410,5ptp4l7361-21df07:25:140
134491410,5ptp4l30733-21df_inode08:15:150
134491410,5ptp4l0-21swapper/311:45:263
134491410,5ptp4l0-21swapper/108:00:281
134491410,4ptp4l5500-21apt-get10:50:021
134491410,4ptp4l3878-21hddtemp_smartct10:45:160
134491410,4ptp4l2961-21hddtemp_smartct07:15:161
134491410,4ptp4l24995-21iostat11:30:190
134491410,4ptp4l24483-21meminfo08:00:200
134491410,4ptp4l16988-21df08:55:160
134491410,4ptp4l15593-21meminfo10:00:211
134491410,4ptp4l13647-21iostat_ios12:15:191
134491410,4ptp4l13386-21diskstats12:15:162
134491410,4ptp4l0-21swapper/312:35:153
134491410,4ptp4l0-21swapper/211:20:082
134491410,3ptp4l4741-21users09:35:301
134491410,3ptp4l30429-21apt-get08:15:121
134491410,3ptp4l23688-21apt-get09:10:142
134491410,3ptp4l0-21swapper/008:49:550
32546994035,3cyclictest33-21ksoftirqd/210:40:112
32546994029,9cyclictest33-21ksoftirqd/211:40:192
134491400,6ptp4l32582-21needreboot11:45:231
134491400,6ptp4l1301-21snmpd07:06:483
134491400,5ptp4l25887-21awk08:05:143
134491400,5ptp4l0-21swapper/311:50:303
134491400,5ptp4l0-21swapper/110:30:161
134491400,5ptp4l0-21swapper/110:30:161
134491400,5ptp4l0-21swapper/010:40:280
134491400,5ptp4l0-21swapper/007:10:160
134491400,4ptp4l5406-21unixbench_multi11:55:270
134491400,4ptp4l5373-21munin-node09:40:110
134491400,4ptp4l29080-21memory08:10:200
134491400,4ptp4l0-21swapper/312:34:293
134491400,4ptp4l0-21swapper/311:16:183
134491400,4ptp4l0-21swapper/311:16:183
134491400,4ptp4l0-21swapper/310:18:343
134491400,4ptp4l0-21swapper/308:04:593
134491400,4ptp4l0-21swapper/307:10:203
134491400,4ptp4l0-21swapper/211:16:152
134491400,4ptp4l0-21swapper/211:16:142
134491400,4ptp4l0-21swapper/211:05:292
134491400,4ptp4l0-21swapper/209:37:042
134491400,4ptp4l0-21swapper/209:32:302
134491400,4ptp4l0-21swapper/209:29:172
134491400,4ptp4l0-21swapper/208:44:092
134491400,4ptp4l0-21swapper/208:35:532
134491400,4ptp4l0-21swapper/208:35:532
134491400,4ptp4l0-21swapper/207:30:282
134491400,4ptp4l0-21swapper/207:30:282
134491400,4ptp4l0-21swapper/207:22:032
134491400,4ptp4l0-21swapper/111:30:171
134491400,4ptp4l0-21swapper/110:45:201
134491400,4ptp4l0-21swapper/110:15:141
134491400,4ptp4l0-21swapper/108:30:001
134491400,4ptp4l0-21swapper/107:55:161
134491400,4ptp4l0-21swapper/107:35:021
134491400,4ptp4l0-21swapper/012:35:260
134491400,3ptp4l8426-21apt-get12:05:112
134491400,3ptp4l7066-21apt-get08:35:031
134491400,3ptp4l7066-21apt-get08:35:031
134491400,3ptp4l26193-21df09:15:150
134491400,3ptp4l15979-21ls08:50:272
134491400,3ptp4l12924-21apt-get11:05:133
32546993933,4cyclictest33-21ksoftirqd/212:10:352
32546993933,4cyclictest33-21ksoftirqd/212:10:352
134491390,5ptp4l0-21swapper/209:50:122
134491390,5ptp4l0-21swapper/208:26:442
134491390,5ptp4l0-21swapper/108:05:261
134491390,4ptp4l14465-21/usr/sbin/munin08:50:283
134491390,4ptp4l0-21swapper/311:03:563
134491390,4ptp4l0-21swapper/310:38:023
134491390,4ptp4l0-21swapper/310:26:533
134491390,4ptp4l0-21swapper/310:21:463
134491390,4ptp4l0-21swapper/310:09:263
134491390,4ptp4l0-21swapper/309:12:043
134491390,4ptp4l0-21swapper/309:04:163
134491390,4ptp4l0-21swapper/308:40:053
134491390,4ptp4l0-21swapper/308:33:433
134491390,4ptp4l0-21swapper/308:22:053
134491390,4ptp4l0-21swapper/308:16:383
134491390,4ptp4l0-21swapper/307:48:463
134491390,4ptp4l0-21swapper/307:43:143
134491390,4ptp4l0-21swapper/307:37:243
134491390,4ptp4l0-21swapper/307:21:563
134491390,4ptp4l0-21swapper/212:37:182
134491390,4ptp4l0-21swapper/212:30:452
134491390,4ptp4l0-21swapper/212:00:172
134491390,4ptp4l0-21swapper/211:50:552
134491390,4ptp4l0-21swapper/211:01:322
134491390,4ptp4l0-21swapper/210:53:142
134491390,4ptp4l0-21swapper/210:48:392
134491390,4ptp4l0-21swapper/210:32:542
134491390,4ptp4l0-21swapper/210:32:542
134491390,4ptp4l0-21swapper/210:21:262
134491390,4ptp4l0-21swapper/210:18:192
134491390,4ptp4l0-21swapper/210:07:472
134491390,4ptp4l0-21swapper/210:02:572
134491390,4ptp4l0-21swapper/209:46:352
134491390,4ptp4l0-21swapper/208:21:362
134491390,4ptp4l0-21swapper/208:05:002
134491390,4ptp4l0-21swapper/207:46:422
134491390,4ptp4l0-21swapper/207:18:392
134491390,4ptp4l0-21swapper/112:20:271
134491390,4ptp4l0-21swapper/111:50:131
134491390,4ptp4l0-21swapper/111:08:091
134491390,4ptp4l0-21swapper/110:11:311
134491390,4ptp4l0-21swapper/109:50:191
134491390,4ptp4l0-21swapper/107:42:521
134491390,4ptp4l0-21swapper/011:45:230
134491390,4ptp4l0-21swapper/009:12:060
134491390,3ptp4l31380-21iostat_ios09:25:181
134491390,3ptp4l27674-21meminfo11:35:212
134491390,3ptp4l22384-21sed09:05:213
134491390,3ptp4l21601-21df09:05:141
134491390,3ptp4l17472-21sed08:55:203
134491390,3ptp4l0-21swapper/310:50:203
134491390,3ptp4l0-21swapper/310:49:243
134491390,3ptp4l0-21swapper/309:30:443
134491390,3ptp4l0-21swapper/209:23:312
134491390,3ptp4l0-21swapper/011:35:050
32545993833,3cyclictest25-21ksoftirqd/112:30:221
134491380,5ptp4l25116-21date09:10:281
134491380,4ptp4l28542-21taskset11:37:123
134491380,4ptp4l0-21swapper/312:19:583
134491380,4ptp4l0-21swapper/311:40:293
134491380,4ptp4l0-21swapper/311:25:333
134491380,4ptp4l0-21swapper/310:56:073
134491380,4ptp4l0-21swapper/309:46:363
134491380,4ptp4l0-21swapper/309:25:283
134491380,4ptp4l0-21swapper/308:10:033
134491380,4ptp4l0-21swapper/307:51:423
134491380,4ptp4l0-21swapper/211:55:182
134491380,4ptp4l0-21swapper/211:45:062
134491380,4ptp4l0-21swapper/211:28:352
134491380,4ptp4l0-21swapper/210:13:042
134491380,4ptp4l0-21swapper/209:01:552
134491380,4ptp4l0-21swapper/207:56:282
134491380,4ptp4l0-21swapper/112:10:161
134491380,4ptp4l0-21swapper/112:10:161
134491380,4ptp4l0-21swapper/011:22:320
134491380,4ptp4l0-21swapper/010:21:100
32546993730,4cyclictest33-21ksoftirqd/209:05:292
134491370,4ptp4l0-21swapper/307:29:403
134491370,4ptp4l0-21swapper/211:30:032
134491370,4ptp4l0-21swapper/208:49:422
134491370,3ptp4l0-21swapper/312:25:163
134491370,3ptp4l0-21swapper/110:40:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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