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2026-03-30 - 04:20
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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 Mar 30, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3131221680,6sleep30-21swapper/319:10:013
134691870,11getstats0-21swapper/200:10:122
305162760,3sleep30-21swapper/320:15:283
134491760,9ptp4l30739-21users19:05:261
134491650,5ptp4l0-21swapper/019:45:210
31406996428,10cyclictest25-21ksoftirqd/100:20:251
38622620,6sleep03140599cyclictest19:20:130
58662610,4sleep10-21swapper/121:45:001
3140699616,8cyclictest3432-21latency_hist20:30:001
31406996126,6cyclictest25-21ksoftirqd/123:55:261
134491610,4ptp4l0-21swapper/222:40:142
31406996025,7cyclictest25-21ksoftirqd/121:05:221
31406996025,7cyclictest25-21ksoftirqd/100:25:271
138282600,4sleep00-21swapper/000:20:110
134491600,4ptp4l0-21swapper/220:15:122
31406995928,6cyclictest25-21ksoftirqd/119:45:011
31406995927,3cyclictest25-21ksoftirqd/120:20:161
134491590,7ptp4l41-21ksoftirqd/321:25:313
134491590,4ptp4l0-21swapper/122:11:301
31406995824,3cyclictest25-21ksoftirqd/100:37:441
31406995821,7cyclictest25-21ksoftirqd/123:40:131
134491580,4ptp4l0-21swapper/223:35:462
31406995726,4cyclictest25-21ksoftirqd/122:20:271
134491570,4ptp4l0-21swapper/020:10:160
134491570,3ptp4l0-21swapper/019:10:250
134491570,2ptp4l0-21swapper/020:30:160
3140699563,6cyclictest25-21ksoftirqd/123:05:221
31406995627,10cyclictest25-21ksoftirqd/120:50:011
31406995624,7cyclictest25-21ksoftirqd/122:30:141
134491560,3ptp4l0-21swapper/323:31:323
134491560,3ptp4l0-21swapper/322:40:223
134491560,3ptp4l0-21swapper/000:15:270
3140699555,9cyclictest25-21ksoftirqd/120:10:221
3140699553,9cyclictest25-21ksoftirqd/121:55:161
3140699550,7cyclictest25-21ksoftirqd/119:15:221
134491550,3ptp4l0-21swapper/322:39:563
134491550,3ptp4l0-21swapper/223:23:302
134491550,3ptp4l0-21swapper/021:30:250
3140699545,6cyclictest25-21ksoftirqd/100:17:001
3140699544,9cyclictest25-21ksoftirqd/122:25:161
3140699543,9cyclictest25-21ksoftirqd/122:50:001
31406995419,6cyclictest25-21ksoftirqd/119:24:021
134491540,4ptp4l0-21swapper/323:55:313
134491540,4ptp4l0-21swapper/323:47:313
134491540,3ptp4l723-21mailstats23:50:240
3140699536,7cyclictest25-21ksoftirqd/123:10:271
3140699536,7cyclictest25-21ksoftirqd/123:10:271
3140699535,7cyclictest8548-21df_abs20:40:131
3140699535,7cyclictest8548-21df_abs20:40:131
3140699534,8cyclictest25-21ksoftirqd/122:55:171
3140699534,8cyclictest25-21ksoftirqd/122:50:251
31406995324,8cyclictest25-21ksoftirqd/123:00:251
31406995323,4cyclictest25-21ksoftirqd/119:45:161
134491530,3ptp4l0-21swapper/020:35:260
134491530,3ptp4l0-21swapper/019:35:230
3140699525,3cyclictest121rcu_preempt21:25:201
3140699525,10cyclictest25-21ksoftirqd/123:25:191
3140699523,8cyclictest25-21ksoftirqd/119:30:201
3140699523,8cyclictest25-21ksoftirqd/119:30:201
31406995225,8cyclictest25-21ksoftirqd/100:30:261
3140699521,6cyclictest25-21ksoftirqd/121:45:141
134491520,3ptp4l443-21rs:main3
134491520,3ptp4l0-21swapper/123:31:281
134491520,11ptp4l0-21swapper/300:10:273
3140699515,3cyclictest121rcu_preempt00:10:171
3140699514,7cyclictest8027-21basename20:40:001
3140699514,4cyclictest25-21ksoftirqd/122:35:251
3140699514,10cyclictest25-21ksoftirqd/119:50:261
3140699513,8cyclictest25-21ksoftirqd/123:20:221
3140699510,6cyclictest25-21ksoftirqd/120:30:181
3140699510,6cyclictest23830-21unixbench_singl20:00:291
134491510,9ptp4l28612-21apt-get19:05:032
134491510,4ptp4l0-21swapper/222:48:262
134491510,4ptp4l0-21swapper/021:47:070
3140699506,7cyclictest25-21ksoftirqd/120:05:171
3140699505,9cyclictest25-21ksoftirqd/122:40:251
3140699504,9cyclictest25-21ksoftirqd/123:45:211
3140699503,10cyclictest25-21ksoftirqd/119:55:261
3140699502,7cyclictest25-21ksoftirqd/120:20:011
3140699502,6cyclictest25-21ksoftirqd/119:35:161
31406995018,6cyclictest25-21ksoftirqd/121:00:051
3140699501,7cyclictest25-21ksoftirqd/121:35:011
134491500,4ptp4l0-21swapper/320:08:503
134491500,11ptp4l0-21swapper/221:26:392
134491500,10ptp4l30280-21ps19:05:230
3140699494,7cyclictest25-21ksoftirqd/119:30:001
3140699492,10cyclictest0-21swapper/123:35:251
3140699491,6cyclictest0-21swapper/122:02:371
3140699490,5cyclictest25-21ksoftirqd/122:05:141
3140699490,5cyclictest231rcuc/100:05:201
134491490,3ptp4l0-21swapper/319:59:223
3140699480,7cyclictest26931-21/usr/sbin/munin21:20:141
134491480,4ptp4l0-21swapper/019:44:540
134491480,3ptp4l0-21swapper/320:55:013
134491480,3ptp4l0-21swapper/021:53:130
134491480,10ptp4l0-21swapper/000:06:100
3140799470,2cyclictest121rcu_preempt21:49:382
3140799470,2cyclictest121rcu_preempt20:39:262
3140699476,9cyclictest25-21ksoftirqd/123:15:191
3140699473,7cyclictest25-21ksoftirqd/122:20:001
134491470,4ptp4l1301-21snmpd23:14:042
134491470,4ptp4l1301-21snmpd23:14:042
134491470,4ptp4l0-21swapper/022:59:400
134491470,3ptp4l0-21swapper/321:32:163
3140799466,8cyclictest33-21ksoftirqd/219:50:212
3140699464,7cyclictest25-21ksoftirqd/121:19:281
3140699463,10cyclictest25-21ksoftirqd/100:00:241
3140699462,8cyclictest25-21ksoftirqd/123:50:141
31406994620,3cyclictest25-21ksoftirqd/121:51:361
31406994618,3cyclictest25-21ksoftirqd/120:58:041
3140699460,7cyclictest25-21ksoftirqd/119:15:001
134491460,4ptp4l0-21swapper/219:37:162
134491460,3ptp4l0-21swapper/321:54:073
134491460,3ptp4l0-21swapper/223:30:212
134491460,2ptp4l111rcuc/021:55:260
134491460,10ptp4l0-21swapper/219:26:572
31407994539,3cyclictest33-21ksoftirqd/222:05:002
134491450,9ptp4l0-21swapper/200:06:542
134491450,4ptp4l6010-21apt-get19:25:133
134491450,10ptp4l0-21swapper/223:42:542
31407994439,3cyclictest33-21ksoftirqd/223:09:592
3140799443,2cyclictest121rcu_preempt21:05:012
31407994431,11cyclictest33-21ksoftirqd/220:20:122
3140799441,3cyclictest121rcu_preempt23:52:312
3140799441,2cyclictest121rcu_preempt19:18:592
31407994411,8cyclictest33-21ksoftirqd/200:30:282
134491440,9ptp4l0-21swapper/222:35:312
134491440,9ptp4l0-21swapper/219:48:312
134491440,5ptp4l0-21swapper/300:20:133
134491440,4ptp4l3959-21apt-get22:50:092
134491440,4ptp4l13751-21apt-get00:20:102
134491440,3ptp4l0-21swapper/322:45:293
134491440,10ptp4l0-21swapper/021:04:560
31407994338,3cyclictest33-21ksoftirqd/222:19:592
134491430,9ptp4l0-21swapper/221:50:582
134491430,9ptp4l0-21swapper/219:58:382
134491430,9ptp4l0-21swapper/020:04:000
134491430,6ptp4l0-21swapper/020:50:120
134491430,4ptp4l0-21swapper/319:17:163
134491430,3ptp4l28513-21ls22:30:260
134491430,3ptp4l0-21swapper/200:38:592
31406994238,2cyclictest231rcuc/121:35:151
3140699420,6cyclictest25-21ksoftirqd/121:10:161
3140699420,6cyclictest25-21ksoftirqd/120:51:301
134491420,9ptp4l0-21swapper/222:58:392
134491420,9ptp4l0-21swapper/221:33:032
134491420,9ptp4l0-21swapper/220:32:312
134491420,5ptp4l0-21swapper/020:15:170
134491420,4ptp4l8301-21apt-get19:30:100
134491420,4ptp4l8301-21apt-get19:30:100
134491420,4ptp4l28211-21memory23:40:200
134491420,4ptp4l13169-21apt-get23:10:100
134491420,4ptp4l13169-21apt-get23:10:100
134491420,4ptp4l0-21swapper/000:35:250
31407994136,3cyclictest33-21ksoftirqd/220:53:592
3140799411,12cyclictest33-21ksoftirqd/220:46:292
3140799410,5cyclictest121rcu_preempt22:13:392
3140799410,3cyclictest121rcu_preempt22:21:212
134491410,9ptp4l0-21swapper/221:44:402
134491410,9ptp4l0-21swapper/219:33:082
134491410,9ptp4l0-21swapper/219:33:082
134491410,9ptp4l0-21swapper/219:11:202
134491410,8ptp4l0-21swapper/223:16:362
134491410,5ptp4l0-21swapper/022:00:140
134491410,5ptp4l0-21swapper/019:15:190
134491410,4ptp4l31711-21apt-get22:40:120
134491410,4ptp4l2070-21df_inode23:55:140
134491410,3ptp4l3712-21apt-get19:20:122
134491410,3ptp4l29679-21hddtemp_smartct21:25:190
134491410,3ptp4l24732-21apt-get23:35:110
134491410,3ptp4l1434-21apt-get21:35:110
134491410,3ptp4l10561-21apt-get20:45:110
134491410,2ptp4l0-21swapper/200:00:252
31407994034,3cyclictest33-21ksoftirqd/223:25:102
3140799402,11cyclictest33-21ksoftirqd/221:55:042
134491400,8ptp4l0-21swapper/221:24:472
134491400,5ptp4l0-21swapper/323:10:173
134491400,5ptp4l0-21swapper/323:10:173
134491400,5ptp4l0-21swapper/322:50:113
134491400,5ptp4l0-21swapper/200:25:242
134491400,5ptp4l0-21swapper/023:25:210
134491400,5ptp4l0-21swapper/020:40:200
134491400,5ptp4l0-21swapper/020:40:200
134491400,4ptp4l25580-21meminfo21:15:210
134491400,4ptp4l25372-21iostat_ios22:25:193
134491400,4ptp4l18127-21iostat19:50:170
134491400,4ptp4l1597-21df_inode20:25:130
134491400,4ptp4l0-21swapper/323:21:573
134491400,4ptp4l0-21swapper/322:30:253
134491400,4ptp4l0-21swapper/220:57:372
134491400,4ptp4l0-21swapper/023:49:350
134491400,4ptp4l0-21swapper/023:15:280
134491400,4ptp4l0-21swapper/022:45:180
134491400,4ptp4l0-21swapper/022:22:360
134491400,4ptp4l0-21swapper/022:19:330
134491400,4ptp4l0-21swapper/022:05:110
134491400,4ptp4l0-21swapper/020:56:040
134491400,4ptp4l0-21swapper/000:00:160
134491400,3ptp4l9007-21/usr/sbin/munin23:00:140
134491400,3ptp4l27511-21iostat21:20:160
134491400,3ptp4l25748-21ntp_states21:15:253
134491400,3ptp4l11184-21diskstats23:05:140
134491400,2ptp4l0-21swapper/019:55:100
31407993935,2cyclictest33-21ksoftirqd/200:17:502
31407993934,3cyclictest33-21ksoftirqd/221:05:122
31407993934,2cyclictest33-21ksoftirqd/220:10:192
134491390,5ptp4l0-21swapper/320:25:263
134491390,5ptp4l0-21swapper/022:50:160
134491390,5ptp4l0-21swapper/021:40:100
134491390,4ptp4l0-21swapper/323:40:213
134491390,4ptp4l0-21swapper/323:05:433
134491390,4ptp4l0-21swapper/323:02:433
134491390,4ptp4l0-21swapper/321:20:243
134491390,4ptp4l0-21swapper/320:50:213
134491390,4ptp4l0-21swapper/319:40:203
134491390,4ptp4l0-21swapper/300:00:233
134491390,4ptp4l0-21swapper/223:55:252
134491390,4ptp4l0-21swapper/223:46:202
134491390,4ptp4l0-21swapper/223:00:122
134491390,4ptp4l0-21swapper/222:30:112
134491390,4ptp4l0-21swapper/222:27:402
134491390,4ptp4l0-21swapper/222:06:352
134491390,4ptp4l0-21swapper/221:38:352
134491390,4ptp4l0-21swapper/221:17:192
134491390,4ptp4l0-21swapper/221:14:442
134491390,4ptp4l0-21swapper/220:40:222
134491390,4ptp4l0-21swapper/220:40:222
134491390,4ptp4l0-21swapper/220:07:412
134491390,4ptp4l0-21swapper/219:41:412
134491390,4ptp4l0-21swapper/023:20:340
134491390,4ptp4l0-21swapper/019:25:160
134491390,3ptp4l9495-21iostat_ios00:10:180
134491390,3ptp4l31970-21iostat_ios20:20:180
134491390,3ptp4l29958-21iostat_ios22:35:170
134491390,3ptp4l18917-21iostat_ios00:30:180
134491390,3ptp4l10868-21diskstats20:45:143
134491390,3ptp4l0-21swapper/220:25:252
134491390,3ptp4l0-21swapper/021:10:190
134491380,4ptp4l25328-21/usr/sbin/munin20:05:180
134491380,4ptp4l25125-21fschecks_count22:25:150
134491380,4ptp4l0-21swapper/323:50:493
134491380,4ptp4l0-21swapper/323:25:123
134491380,4ptp4l0-21swapper/322:55:213
134491380,4ptp4l0-21swapper/322:00:003
134491380,4ptp4l0-21swapper/321:49:283
134491380,4ptp4l0-21swapper/321:01:383
134491380,4ptp4l0-21swapper/320:44:063
134491380,4ptp4l0-21swapper/320:44:063
134491380,4ptp4l0-21swapper/320:35:243
134491380,4ptp4l0-21swapper/320:33:133
134491380,4ptp4l0-21swapper/320:20:283
134491380,4ptp4l0-21swapper/320:10:223
134491380,4ptp4l0-21swapper/319:20:263
134491380,4ptp4l0-21swapper/300:38:493
134491380,4ptp4l0-21swapper/300:32:353
134491380,4ptp4l0-21swapper/220:00:032
134491380,4ptp4l0-21swapper/022:10:090
134491380,4ptp4l0-21swapper/000:25:140
134491380,3ptp4l22736-21df_inode23:30:140
134491380,3ptp4l0-21swapper/322:15:183
134491380,3ptp4l0-21swapper/321:40:013
134491370,4ptp4l0-21swapper/323:36:473
134491370,4ptp4l0-21swapper/323:16:413
134491370,4ptp4l0-21swapper/322:07:333
134491370,4ptp4l0-21swapper/321:35:563
134491370,4ptp4l0-21swapper/320:01:323
134491370,4ptp4l0-21swapper/319:50:183
134491370,4ptp4l0-21swapper/319:34:123
134491370,4ptp4l0-21swapper/319:34:123
134491370,4ptp4l0-21swapper/300:29:423
134491370,3ptp4l0-21swapper/322:10:063
134491370,3ptp4l0-21swapper/322:01:503
134491370,3ptp4l0-21swapper/300:15:503
134491370,3ptp4l0-21swapper/300:06:033
134491370,3ptp4l0-21swapper/021:05:150
134491360,4ptp4l0-21swapper/322:20:463
134491360,4ptp4l0-21swapper/319:39:373
134491360,3ptp4l0-21swapper/319:49:533
134491350,4ptp4l0-21swapper/321:11:003
134491350,3ptp4l0-21swapper/321:07:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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