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2026-06-03 - 18:11
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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 Jun 03, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1219721570,6sleep31362699cyclictest10:35:163
2361721450,6sleep11362499cyclictest08:40:171
765821430,3sleep21362599cyclictest11:35:132
1362699732,35cyclictest0-21swapper/308:00:263
1362399722,2cyclictest0-21swapper/009:48:520
13626996832,4cyclictest41-21ksoftirqd/312:20:003
1362699672,34cyclictest0-21swapper/311:10:143
13623996613,23cyclictest21180-21cat07:25:180
1362399643,5cyclictest0-21swapper/007:50:290
1362399633,3cyclictest134491ptp4l09:55:190
134491620,5ptp4l0-21swapper/110:25:131
134491620,5ptp4l0-21swapper/110:25:131
134491590,4ptp4l23242-21/usr/sbin/munin09:50:261
134491590,4ptp4l0-21swapper/107:05:211
134491580,3ptp4l0-21swapper/211:10:412
13626995728,6cyclictest41-21ksoftirqd/310:26:453
13626995728,6cyclictest41-21ksoftirqd/310:26:453
134491570,3ptp4l0-21swapper/007:10:230
134491560,4ptp4l0-21swapper/209:30:462
134491560,4ptp4l0-21swapper/109:10:171
134491560,3ptp4l0-21swapper/112:25:211
134491560,3ptp4l0-21swapper/111:24:021
134491560,3ptp4l0-21swapper/011:45:130
134491560,3ptp4l0-21swapper/010:02:290
1362699551,6cyclictest0-21swapper/309:05:253
134491550,4ptp4l0-21swapper/208:41:192
134491550,4ptp4l0-21swapper/110:22:191
134491550,3ptp4l0-21swapper/011:35:140
134491550,3ptp4l0-21swapper/010:35:270
1362699545,9cyclictest41-21ksoftirqd/310:20:133
1362699543,6cyclictest0-21swapper/309:00:203
1362699540,6cyclictest0-21swapper/309:55:123
134491540,4ptp4l0-21swapper/210:36:342
134491540,4ptp4l0-21swapper/210:09:172
134491540,4ptp4l0-21swapper/112:22:221
134491540,4ptp4l0-21swapper/112:04:281
134491540,4ptp4l0-21swapper/111:59:171
134491540,3ptp4l0-21swapper/208:56:592
134491540,3ptp4l0-21swapper/012:36:440
1362699532,11cyclictest0-21swapper/307:50:303
1362699532,10cyclictest0-21swapper/307:20:113
134491530,4ptp4l0-21swapper/212:01:012
134491530,4ptp4l0-21swapper/207:58:302
134491530,4ptp4l0-21swapper/207:58:302
134491530,4ptp4l0-21swapper/109:38:371
134491530,4ptp4l0-21swapper/107:47:581
134491530,3ptp4l0-21swapper/211:21:062
134491530,3ptp4l0-21swapper/111:45:081
1362699526,3cyclictest121rcu_preempt08:55:293
1362699525,5cyclictest18466-21dpkg10:50:013
1362699523,6cyclictest0-21swapper/307:30:583
1362699522,7cyclictest0-21swapper/312:00:163
1362699522,6cyclictest41-21ksoftirqd/309:15:273
13626995224,9cyclictest41-21ksoftirqd/307:10:153
1362699522,37cyclictest0-21swapper/310:30:223
1362699522,37cyclictest0-21swapper/310:30:223
1362699521,6cyclictest0-21swapper/311:20:183
134491520,4ptp4l23290-21ls11:00:012
134491520,4ptp4l0-21swapper/111:41:301
134491520,4ptp4l0-21swapper/111:09:591
134491520,4ptp4l0-21swapper/010:59:560
134491520,3ptp4l0-21swapper/112:37:501
134491520,18ptp4l25-21ksoftirqd/112:05:151
1362699512,7cyclictest0-21swapper/308:31:023
1362699512,6cyclictest41-21ksoftirqd/307:45:233
1362699512,6cyclictest0-21swapper/311:15:253
1362699510,6cyclictest0-21swapper/310:00:173
1362699505,7cyclictest41-21ksoftirqd/307:40:153
1362699503,8cyclictest41-21ksoftirqd/309:30:183
1362699502,6cyclictest0-21swapper/311:36:323
13626995022,3cyclictest41-21ksoftirqd/311:45:273
1362699501,7cyclictest41-21ksoftirqd/308:10:013
1362699501,6cyclictest0-21swapper/308:50:153
134491500,4ptp4l0-21swapper/212:24:582
134491500,4ptp4l0-21swapper/209:25:302
134491500,4ptp4l0-21swapper/111:14:121
134491500,3ptp4l0-21swapper/208:54:252
134491500,3ptp4l0-21swapper/010:16:070
1362699495,3cyclictest2614-21df_abs07:55:163
1362699495,3cyclictest2614-21df_abs07:55:163
1362699494,7cyclictest41-21ksoftirqd/307:35:013
1362699494,7cyclictest41-21ksoftirqd/307:20:003
1362699494,6cyclictest41-21ksoftirqd/310:15:143
13626994946,2cyclictest391rcuc/310:15:003
1362699494,5cyclictest41-21ksoftirqd/308:25:263
1362699492,10cyclictest0-21swapper/311:00:253
1362699491,6cyclictest0-21swapper/310:05:343
134491490,4ptp4l0-21swapper/211:41:452
134491490,4ptp4l0-21swapper/210:45:052
134491490,4ptp4l0-21swapper/209:46:152
134491490,4ptp4l0-21swapper/107:21:291
134491490,3ptp4l0-21swapper/112:13:241
134491490,3ptp4l0-21swapper/109:31:491
1362699486,3cyclictest41-21ksoftirqd/312:25:473
1362699484,5cyclictest41-21ksoftirqd/309:25:273
1362699480,11cyclictest0-21swapper/312:30:223
134491480,5ptp4l0-21swapper/207:06:292
134491480,4ptp4l0-21swapper/211:26:322
134491480,4ptp4l0-21swapper/209:10:012
134491480,4ptp4l0-21swapper/208:18:142
134491480,4ptp4l0-21swapper/208:07:292
134491480,4ptp4l0-21swapper/207:29:302
134491480,3ptp4l0-21swapper/012:27:440
1362699475,6cyclictest21410-21grep09:45:153
1362699474,8cyclictest41-21ksoftirqd/310:55:013
1362699474,7cyclictest41-21ksoftirqd/312:15:003
1362699473,7cyclictest41-21ksoftirqd/311:25:223
1362699473,4cyclictest0-21swapper/312:10:013
1362699471,6cyclictest0-21swapper/312:21:093
1362699471,6cyclictest0-21swapper/311:50:363
134491470,4ptp4l0-21swapper/110:06:451
134491470,3ptp4l0-21swapper/207:24:012
134491470,13ptp4l0-21swapper/210:20:122
1362699465,7cyclictest41-21ksoftirqd/312:35:193
1362699465,3cyclictest121rcu_preempt08:40:173
1362699464,8cyclictest41-21ksoftirqd/308:15:283
1362699463,6cyclictest41-21ksoftirqd/311:40:133
1362699462,8cyclictest41-21ksoftirqd/311:55:553
1362699462,6cyclictest0-21swapper/309:35:253
1362699460,7cyclictest41-21ksoftirqd/310:59:423
134491460,7ptp4l0-21swapper/007:05:290
134491460,3ptp4l0-21swapper/212:19:462
134491460,3ptp4l0-21swapper/108:02:351
134491460,3ptp4l0-21swapper/009:39:550
1362699455,8cyclictest41-21ksoftirqd/310:40:143
1362699454,7cyclictest41-21ksoftirqd/309:40:253
1362699451,11cyclictest0-21swapper/308:45:193
1362699450,6cyclictest41-21ksoftirqd/311:30:253
1362399457,25cyclictest1632-21timerwakeupswit10:10:270
134491450,4ptp4l0-21swapper/011:25:340
134491450,4ptp4l0-21swapper/008:36:150
134491450,4ptp4l0-21swapper/008:08:440
134491450,12ptp4l0-21swapper/012:20:130
1362699443,7cyclictest41-21ksoftirqd/309:25:013
1362699442,9cyclictest41-21ksoftirqd/309:50:173
1362699440,6cyclictest401ktimersoftd/309:10:183
134491440,9ptp4l0-21swapper/209:07:062
134491440,9ptp4l0-21swapper/011:42:410
134491440,3ptp4l0-21swapper/012:07:520
134491440,3ptp4l0-21swapper/008:46:280
134491440,3ptp4l0-21swapper/007:30:430
1362699432,7cyclictest0-21swapper/307:25:133
134491430,9ptp4l0-21swapper/208:49:372
134491430,8ptp4l0-21swapper/208:26:582
134491430,4ptp4l0-21swapper/109:43:391
134491430,4ptp4l0-21swapper/108:53:001
134491430,3ptp4l0-21swapper/209:44:142
134491430,3ptp4l0-21swapper/111:35:261
134491430,3ptp4l0-21swapper/108:13:071
134491430,3ptp4l0-21swapper/009:14:360
134491430,10ptp4l0-21swapper/210:43:452
1362699423,7cyclictest41-21ksoftirqd/308:35:203
1362499422,39cyclictest0-21swapper/110:01:391
134491420,9ptp4l0-21swapper/211:16:402
134491420,9ptp4l0-21swapper/209:02:342
134491420,9ptp4l0-21swapper/208:21:432
134491420,9ptp4l0-21swapper/207:40:512
134491420,9ptp4l0-21swapper/008:25:530
134491420,8ptp4l0-21swapper/211:08:192
134491420,5ptp4l26841-21ntp_states11:05:233
134491420,5ptp4l0-21swapper/008:50:270
134491420,4ptp4l9451-21apt-get09:20:110
134491420,4ptp4l26082-21apt-get12:15:120
134491420,4ptp4l0-21swapper/107:38:471
134491420,4ptp4l0-21swapper/008:35:010
134491420,3ptp4l0-21swapper/110:55:551
134491420,3ptp4l0-21swapper/011:02:230
13626994124,7cyclictest41-21ksoftirqd/308:20:263
1362499410,38cyclictest14491-21grep08:20:191
134491410,5ptp4l23518-21iostat_ios07:30:191
134491410,5ptp4l0-21swapper/212:05:182
134491410,5ptp4l0-21swapper/010:40:150
134491410,4ptp4l9451-21apt-get09:20:101
134491410,4ptp4l7937-21meminfo08:05:211
134491410,4ptp4l5998-21irqstats11:30:180
134491410,4ptp4l30585-21apt-get11:15:120
134491410,4ptp4l28345-21iostat_ios07:40:191
134491410,4ptp4l26647-21iostat12:15:181
134491410,4ptp4l24375-21ntp_states09:50:210
134491410,4ptp4l18352-21apt-get10:50:030
134491410,4ptp4l0-21swapper/110:40:011
134491410,4ptp4l0-21swapper/108:45:011
134491410,3ptp4l26408-21memory07:35:232
134491410,3ptp4l0-21swapper/110:38:571
134491410,2ptp4l121rcu_preempt11:25:141
1362699402,6cyclictest0-21swapper/308:10:163
134491400,9ptp4l0-21swapper/210:16:052
134491400,5ptp4l33-21ksoftirqd/212:37:522
134491400,5ptp4l0-21swapper/210:10:162
134491400,5ptp4l0-21swapper/111:30:121
134491400,5ptp4l0-21swapper/010:45:110
134491400,5ptp4l0-21swapper/009:05:280
134491400,5ptp4l0-21swapper/008:20:190
134491400,4ptp4l32254-21users11:15:291
134491400,4ptp4l26403-21meminfo07:35:220
134491400,4ptp4l2538-21apt-get09:05:131
134491400,4ptp4l23116-21apt-get08:40:120
134491400,4ptp4l16035-21users11:50:280
134491400,4ptp4l14307-21iostat_ios07:10:201
134491400,4ptp4l11891-21diskstats08:15:151
134491400,4ptp4l0-21swapper/211:55:242
134491400,4ptp4l0-21swapper/209:55:392
134491400,4ptp4l0-21swapper/208:00:392
134491400,4ptp4l0-21swapper/207:15:172
134491400,4ptp4l0-21swapper/111:00:121
134491400,4ptp4l0-21swapper/110:51:091
134491400,4ptp4l0-21swapper/109:45:101
134491400,4ptp4l0-21swapper/108:38:491
134491400,4ptp4l0-21swapper/010:27:590
134491400,4ptp4l0-21swapper/010:27:590
134491400,4ptp4l0-21swapper/010:20:140
134491400,4ptp4l0-21swapper/007:20:290
134491400,3ptp4l31173-21memory10:05:200
134491400,3ptp4l26660-21ls11:05:200
134491400,3ptp4l24907-21ntp_states12:10:240
134491400,3ptp4l19190-21apt-get12:00:120
134491400,3ptp4l18667-21apt-get09:40:120
134491400,3ptp4l1662-21ls12:30:210
134491400,3ptp4l16601-21df_inode10:45:131
134491400,3ptp4l0-21swapper/207:10:392
134491400,3ptp4l0-21swapper/110:15:141
134491390,6ptp4l25-21ksoftirqd/110:34:451
134491390,6ptp4l25-21ksoftirqd/110:34:451
134491390,5ptp4l0-21swapper/109:00:201
134491390,5ptp4l0-21swapper/011:10:190
134491390,5ptp4l0-21swapper/007:15:180
134491390,4ptp4l14672-21diskstats11:50:141
134491390,4ptp4l0-21swapper/212:25:202
134491390,4ptp4l0-21swapper/211:49:212
134491390,4ptp4l0-21swapper/210:53:262
134491390,4ptp4l0-21swapper/210:34:192
134491390,4ptp4l0-21swapper/210:34:192
134491390,4ptp4l0-21swapper/210:25:032
134491390,4ptp4l0-21swapper/210:25:032
134491390,4ptp4l0-21swapper/210:02:352
134491390,4ptp4l0-21swapper/209:54:062
134491390,4ptp4l0-21swapper/209:39:232
134491390,4ptp4l0-21swapper/208:31:482
134491390,4ptp4l0-21swapper/208:12:032
134491390,4ptp4l0-21swapper/207:51:122
134491390,4ptp4l0-21swapper/207:48:312
134491390,4ptp4l0-21swapper/109:15:151
134491390,4ptp4l0-21swapper/108:30:291
134491390,4ptp4l0-21swapper/107:51:591
134491390,4ptp4l0-21swapper/107:15:011
134491390,4ptp4l0-21swapper/011:55:300
134491390,4ptp4l0-21swapper/010:30:570
134491390,4ptp4l0-21swapper/010:30:570
134491390,4ptp4l0-21swapper/009:30:170
134491390,4ptp4l0-21swapper/008:15:230
134491390,4ptp4l0-21swapper/007:58:000
134491390,4ptp4l0-21swapper/007:58:000
134491390,3ptp4l825-21df12:30:131
134491390,3ptp4l7134-21apt-get09:15:130
134491390,3ptp4l26491-21ls09:55:191
134491390,3ptp4l12057-21diskstats09:25:170
134491390,3ptp4l0-21swapper/110:10:151
134491390,3ptp4l0-21swapper/008:10:250
13625993833,3cyclictest33-21ksoftirqd/208:35:152
13623993832,4cyclictest9-21ksoftirqd/009:00:250
134491380,5ptp4l0-21swapper/307:06:143
134491380,4ptp4l0-21swapper/212:30:072
134491380,4ptp4l0-21swapper/212:10:112
134491380,4ptp4l0-21swapper/211:50:052
134491380,4ptp4l0-21swapper/211:30:482
134491380,4ptp4l0-21swapper/211:00:132
134491380,4ptp4l0-21swapper/209:21:412
134491380,4ptp4l0-21swapper/209:15:552
134491380,4ptp4l0-21swapper/207:33:332
134491380,4ptp4l0-21swapper/109:26:011
134491380,4ptp4l0-21swapper/108:26:211
134491380,4ptp4l0-21swapper/107:55:051
134491380,4ptp4l0-21swapper/107:55:051
134491380,3ptp4l31219-21memory08:55:221
134491380,3ptp4l21210-21iostat07:25:181
134491380,3ptp4l0-21swapper/011:20:160
134491380,3ptp4l0-21swapper/008:55:170
134491380,3ptp4l0-21swapper/007:45:230
134491380,3ptp4l0-21swapper/007:40:240
134491370,3ptp4l0-21swapper/008:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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