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2026-09-14 - 23:12
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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 Sep 14, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2938121820,5sleep329385-21irqrtprio07:05:173
2096621810,4sleep33109299cyclictest10:15:133
119322770,4sleep00-21swapper/012:15:000
134491760,3ptp4l0-21swapper/209:28:052
31090996531,4cyclictest25-21ksoftirqd/107:45:001
31090996429,4cyclictest25-21ksoftirqd/109:45:201
31090996429,4cyclictest25-21ksoftirqd/109:45:201
17182640,6sleep20-21swapper/211:50:242
288162610,4sleep20-21swapper/208:15:002
134491590,5ptp4l0-21swapper/212:19:222
3109099581,12cyclictest0-21swapper/111:00:241
134491580,3ptp4l0-21swapper/210:50:012
134491570,4ptp4l0-21swapper/008:59:570
134491560,4ptp4l0-21swapper/208:06:012
134491560,4ptp4l0-21swapper/208:06:012
134491560,4ptp4l0-21swapper/008:00:190
134491560,3ptp4l0-21swapper/109:30:051
134491560,3ptp4l0-21swapper/010:00:260
134491560,12ptp4l30844-21ls07:10:003
61422550,6sleep03108999cyclictest07:25:170
3109099551,7cyclictest25-21ksoftirqd/110:55:141
134491550,4ptp4l0-21swapper/210:14:502
134491550,4ptp4l0-21swapper/107:48:041
134491550,3ptp4l0-21swapper/108:40:241
134491550,3ptp4l0-21swapper/011:03:170
134491550,3ptp4l0-21swapper/009:40:250
3109099545,8cyclictest25-21ksoftirqd/109:10:241
134491540,9ptp4l0-21swapper/209:10:072
134491540,9ptp4l0-21swapper/208:56:262
134491540,9ptp4l0-21swapper/208:32:252
134491540,4ptp4l0-21swapper/310:51:173
134491540,3ptp4l0-21swapper/012:15:210
134491540,3ptp4l0-21swapper/011:55:000
134491540,2ptp4l27158-21ls10:25:273
3109099534,11cyclictest0-21swapper/109:29:431
3109099533,6cyclictest25-21ksoftirqd/110:30:161
134691530,4getstats0-21swapper/309:25:193
134491530,4ptp4l0-21swapper/312:17:183
134491530,4ptp4l0-21swapper/212:31:552
134491530,4ptp4l0-21swapper/208:15:102
134491530,3ptp4l0-21swapper/209:20:252
134491530,3ptp4l0-21swapper/107:54:321
46198520,17rtkit-daemon0-21swapper/312:30:003
3109099526,11cyclictest0-21swapper/111:15:261
3109099524,8cyclictest25-21ksoftirqd/112:30:001
3109099523,5cyclictest25-21ksoftirqd/111:55:141
134491520,6ptp4l0-21swapper/207:08:062
134491520,5ptp4l0-21swapper/211:43:452
134491520,3ptp4l0-21swapper/108:16:241
134491520,3ptp4l0-21swapper/011:10:260
3109099510,6cyclictest25-21ksoftirqd/111:50:231
3109099510,6cyclictest23666-21cat12:40:011
134491510,4ptp4l0-21swapper/310:03:083
134491510,4ptp4l0-21swapper/210:09:482
134491510,4ptp4l0-21swapper/208:04:222
3109099505,7cyclictest25-21ksoftirqd/110:50:011
3109099505,7cyclictest25-21ksoftirqd/109:05:221
3109099505,6cyclictest25-21ksoftirqd/110:25:131
134491500,4ptp4l0-21swapper/212:20:402
134491500,4ptp4l0-21swapper/211:09:152
134491500,4ptp4l0-21swapper/208:52:232
134491500,3ptp4l0-21swapper/310:32:143
134491500,3ptp4l0-21swapper/011:40:300
134491500,19ptp4l9-21ksoftirqd/007:18:120
3109099495,7cyclictest25-21ksoftirqd/109:20:191
3109099495,7cyclictest25-21ksoftirqd/107:10:131
3109099493,9cyclictest25-21ksoftirqd/108:45:211
3109099492,6cyclictest25-21ksoftirqd/108:01:301
3109099491,6cyclictest25-21ksoftirqd/110:20:131
3109099490,7cyclictest25-21ksoftirqd/108:05:291
3109099490,7cyclictest25-21ksoftirqd/108:05:281
134491490,5ptp4l0-21swapper/310:56:153
134491490,4ptp4l0-21swapper/212:39:242
134491490,4ptp4l0-21swapper/212:25:532
134491490,4ptp4l0-21swapper/209:37:502
134491490,4ptp4l0-21swapper/209:31:112
134491490,4ptp4l0-21swapper/209:15:162
134491490,4ptp4l0-21swapper/207:29:572
134491490,4ptp4l0-21swapper/007:39:170
3109099485,8cyclictest25-21ksoftirqd/111:20:191
3109099485,7cyclictest25-21ksoftirqd/107:35:001
3109099484,8cyclictest25-21ksoftirqd/109:00:001
3109099483,6cyclictest25-21ksoftirqd/109:15:131
3109099482,3cyclictest121rcu_preempt11:25:241
3109099480,8cyclictest25-21ksoftirqd/109:35:191
3109099480,6cyclictest3464-21cpu07:20:131
3109099480,6cyclictest0-21swapper/112:10:121
134491480,17ptp4l9-21ksoftirqd/007:45:490
3109099475,9cyclictest25-21ksoftirqd/107:15:231
3109099475,7cyclictest25-21ksoftirqd/110:50:181
3109099475,7cyclictest25-21ksoftirqd/110:40:181
3109099475,7cyclictest25-21ksoftirqd/109:45:001
3109099475,7cyclictest25-21ksoftirqd/107:35:151
3109099473,6cyclictest25-21ksoftirqd/112:10:011
3109099472,11cyclictest0-21swapper/108:35:141
3109099472,11cyclictest0-21swapper/108:35:141
3109099470,7cyclictest25-21ksoftirqd/108:50:241
3109099470,5cyclictest9236-21/usr/sbin/munin09:50:231
134491470,4ptp4l0-21swapper/209:55:042
134491470,4ptp4l0-21swapper/209:09:572
134491470,4ptp4l0-21swapper/011:06:310
134491470,3ptp4l3109299cyclictest08:24:133
134491470,3ptp4l0-21swapper/212:11:322
134491470,1ptp4l111rcuc/010:30:000
134491470,11ptp4l8793-21irqrtprio08:40:170
3109099464,5cyclictest0-21swapper/110:36:551
3109099461,6cyclictest25-21ksoftirqd/112:30:161
31090994614,3cyclictest25-21ksoftirqd/111:12:221
3109099460,5cyclictest28244-21/usr/sbin/munin11:40:201
3109099460,5cyclictest25-21ksoftirqd/110:05:201
3109099460,12cyclictest25-21ksoftirqd/108:25:011
3109099454,7cyclictest25-21ksoftirqd/109:00:191
3109099454,6cyclictest25-21ksoftirqd/110:10:131
3109099450,6cyclictest25-21ksoftirqd/108:25:181
3109099450,5cyclictest25-21ksoftirqd/112:00:131
3109099450,5cyclictest25-21ksoftirqd/107:25:271
134491450,4ptp4l5904-21apt-get08:35:132
134491450,4ptp4l5904-21apt-get08:35:132
134491450,4ptp4l3109299cyclictest09:01:023
134491450,4ptp4l0-21swapper/007:05:200
134491450,2ptp4l0-21swapper/109:57:391
134491450,11ptp4l0-21swapper/210:15:152
3109099445,7cyclictest25-21ksoftirqd/111:45:141
3109099445,7cyclictest25-21ksoftirqd/111:32:041
3109099443,7cyclictest0-21swapper/110:02:371
3109099443,3cyclictest25-21ksoftirqd/112:15:251
134491440,4ptp4l18064-21hddtemp_smartct09:00:170
134491440,4ptp4l0-21swapper/210:40:252
134491440,10ptp4l0-21swapper/208:47:122
31092994338,3cyclictest41-21ksoftirqd/309:40:003
3109099434,6cyclictest25-21ksoftirqd/111:05:131
134491430,9ptp4l0-21swapper/212:03:322
134491430,9ptp4l0-21swapper/211:17:582
134491430,9ptp4l0-21swapper/207:35:462
134491430,6ptp4l20151-21memory12:30:203
134491430,5ptp4l30694-21df_inode10:35:170
134491430,5ptp4l0-21swapper/312:35:163
134491430,5ptp4l0-21swapper/210:50:182
134491430,4ptp4l31603-21df_inode08:20:140
134491430,4ptp4l30550-21apt-get11:45:110
134491430,4ptp4l0-21swapper/011:57:430
31091994227,12cyclictest33-21ksoftirqd/207:55:222
3109099424,4cyclictest134491ptp4l10:15:251
134491420,9ptp4l0-21swapper/211:27:112
134491420,9ptp4l0-21swapper/210:23:492
134491420,9ptp4l0-21swapper/208:28:312
134491420,8ptp4l0-21swapper/211:59:262
134491420,8ptp4l0-21swapper/207:40:432
134491420,5ptp4l409-21memory09:30:210
134491420,5ptp4l22831-21apt-get10:20:033
134491420,4ptp4l4200-21sensors_temp11:55:253
134491420,4ptp4l22687-21df09:10:133
134491420,4ptp4l10941-21hddtemp_smartct08:45:150
134491420,4ptp4l0-21swapper/310:42:243
134491420,4ptp4l0-21swapper/310:14:453
134491420,4ptp4l0-21swapper/211:20:112
134491420,4ptp4l0-21swapper/209:42:582
134491420,3ptp4l5180-21apt-get12:00:110
134491420,3ptp4l22302-21memory11:25:190
3109099415,7cyclictest25-21ksoftirqd/111:35:211
134491410,9ptp4l0-21swapper/212:08:072
134491410,9ptp4l0-21swapper/211:46:312
134491410,8ptp4l0-21swapper/208:23:492
134491410,8ptp4l0-21swapper/207:20:172
134491410,6ptp4l0-21swapper/107:06:261
134491410,5ptp4l20362-21/usr/sbin/munin09:05:173
134491410,5ptp4l0-21swapper/210:25:202
134491410,4ptp4l9148-21users12:05:260
134491410,4ptp4l3450-21apt-get07:20:130
134491410,4ptp4l32069-21meminfo07:10:210
134491410,4ptp4l27244-21iostat_ios08:10:191
134491410,4ptp4l26376-21hddtemp_smartct11:35:180
134491410,4ptp4l22045-21apt-get09:10:010
134491410,4ptp4l0-21swapper/307:40:123
134491410,4ptp4l0-21swapper/211:01:172
134491410,4ptp4l0-21swapper/209:45:112
134491410,4ptp4l0-21swapper/209:45:112
134491410,4ptp4l0-21swapper/208:43:242
134491410,4ptp4l0-21swapper/010:58:580
134491410,3ptp4l845-21iostat10:40:170
134491410,3ptp4l30349-21memory09:25:200
134491410,3ptp4l2722-21apt-get10:45:110
134491410,3ptp4l24076-21hddtemp_smartct11:30:150
134491400,8ptp4l0-21swapper/207:30:442
134491400,5ptp4l22121-21cat10:15:250
134491400,5ptp4l13134-21fschecks_count08:50:140
134491400,5ptp4l0-21swapper/312:10:103
134491400,4ptp4l28205-21/usr/sbin/munin09:20:230
134491400,4ptp4l20877-21ntp_states07:55:230
134491400,4ptp4l0-21swapper/308:01:003
134491400,4ptp4l0-21swapper/211:31:292
134491400,4ptp4l0-21swapper/211:12:312
134491400,4ptp4l0-21swapper/210:55:122
134491400,4ptp4l0-21swapper/210:35:242
134491400,4ptp4l0-21swapper/209:54:182
134491400,4ptp4l0-21swapper/207:51:372
134491400,4ptp4l0-21swapper/207:16:372
134491400,4ptp4l0-21swapper/112:20:281
134491400,4ptp4l0-21swapper/010:20:190
134491400,4ptp4l0-21swapper/009:35:240
134491400,4ptp4l0-21swapper/008:35:140
134491400,4ptp4l0-21swapper/008:35:140
134491400,4ptp4l0-21swapper/008:25:230
134491400,4ptp4l0-21swapper/008:15:170
134491400,3ptp4l20175-21ntp_states11:20:230
134491400,3ptp4l11551-21apt-get09:55:130
134491390,5ptp4l9257-21ps07:30:230
134491390,5ptp4l0-21swapper/108:00:001
134491390,5ptp4l0-21swapper/012:35:010
134491390,5ptp4l0-21swapper/012:30:230
134491390,5ptp4l0-21swapper/010:05:150
134491390,4ptp4l0-21swapper/311:44:053
134491390,4ptp4l0-21swapper/311:37:273
134491390,4ptp4l0-21swapper/311:33:323
134491390,4ptp4l0-21swapper/310:35:233
134491390,4ptp4l0-21swapper/309:53:383
134491390,4ptp4l0-21swapper/309:19:353
134491390,4ptp4l0-21swapper/308:40:233
134491390,4ptp4l0-21swapper/308:31:553
134491390,4ptp4l0-21swapper/308:25:163
134491390,4ptp4l0-21swapper/308:10:243
134491390,4ptp4l0-21swapper/307:37:183
134491390,4ptp4l0-21swapper/307:25:183
134491390,4ptp4l0-21swapper/211:35:022
134491390,4ptp4l0-21swapper/210:32:592
134491390,4ptp4l0-21swapper/210:00:522
134491390,4ptp4l0-21swapper/209:00:232
134491390,4ptp4l0-21swapper/207:10:512
134491390,4ptp4l0-21swapper/108:30:151
134491390,4ptp4l0-21swapper/012:21:410
134491390,4ptp4l0-21swapper/011:15:240
134491390,4ptp4l0-21swapper/010:50:230
134491390,4ptp4l0-21swapper/010:31:270
134491390,4ptp4l0-21swapper/009:05:250
134491390,4ptp4l0-21swapper/008:31:160
134491390,4ptp4l0-21swapper/008:05:230
134491390,4ptp4l0-21swapper/008:05:230
134491390,4ptp4l0-21swapper/007:53:040
134491390,4ptp4l0-21swapper/007:40:140
134491390,3ptp4l24982-21df09:15:130
134491390,3ptp4l0-21swapper/009:50:070
134491390,3ptp4l0-21swapper/009:45:180
134491390,3ptp4l0-21swapper/009:45:170
134491390,3ptp4l0-21swapper/008:10:250
134491380,4ptp4l0-21swapper/312:22:123
134491380,4ptp4l0-21swapper/312:01:143
134491380,4ptp4l0-21swapper/311:20:403
134491380,4ptp4l0-21swapper/311:13:343
134491380,4ptp4l0-21swapper/309:49:453
134491380,4ptp4l0-21swapper/309:49:453
134491380,4ptp4l0-21swapper/309:34:153
134491380,4ptp4l0-21swapper/309:22:173
134491380,4ptp4l0-21swapper/308:55:263
134491380,4ptp4l0-21swapper/308:50:133
134491380,4ptp4l0-21swapper/308:46:313
134491380,4ptp4l0-21swapper/308:18:323
134491380,4ptp4l0-21swapper/308:07:063
134491380,4ptp4l0-21swapper/308:07:063
134491380,4ptp4l0-21swapper/307:53:033
134491380,4ptp4l0-21swapper/307:46:013
134491380,4ptp4l0-21swapper/307:33:443
134491380,4ptp4l0-21swapper/307:21:493
134491380,4ptp4l0-21swapper/307:16:083
134491380,4ptp4l0-21swapper/207:45:362
134491380,4ptp4l0-21swapper/012:25:130
134491380,4ptp4l0-21swapper/010:10:170
134491380,3ptp4l0-21swapper/312:08:383
134491380,3ptp4l0-21swapper/310:45:123
134491380,3ptp4l0-21swapper/308:39:413
134491380,3ptp4l0-21swapper/308:39:413
134491370,4ptp4l0-21swapper/311:54:073
134491370,4ptp4l0-21swapper/311:16:583
134491370,4ptp4l0-21swapper/311:07:023
134491370,4ptp4l0-21swapper/311:01:543
134491370,4ptp4l0-21swapper/309:58:293
134491370,4ptp4l0-21swapper/307:56:593
134491370,3ptp4l0-21swapper/311:27:293
134491370,3ptp4l0-21swapper/309:42:373
134491360,4ptp4l0-21swapper/311:46:093
46198350,4rtkit-daemon0-21swapper/310:07:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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