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2025-12-26 - 11:45
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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 Fri Dec 26, 2025 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2452121620,6sleep31590499cyclictest21:45:193
91552770,5sleep00-21swapper/021:15:010
15902997713,62cyclictest9399-21kworker/1:021:25:481
15901996635,4cyclictest9-21ksoftirqd/020:35:170
15901996431,6cyclictest9-21ksoftirqd/019:55:220
15901996431,5cyclictest9-21ksoftirqd/020:55:000
15901996427,6cyclictest9-21ksoftirqd/020:25:200
15901996427,6cyclictest9-21ksoftirqd/020:25:200
15901996333,4cyclictest9-21ksoftirqd/000:20:470
15901996330,6cyclictest9-21ksoftirqd/023:49:200
15901996329,3cyclictest9-21ksoftirqd/020:33:050
15901996328,5cyclictest9-21ksoftirqd/021:00:000
15901996328,5cyclictest9-21ksoftirqd/020:05:000
15901996327,6cyclictest9-21ksoftirqd/021:35:000
11742630,4sleep10-21swapper/122:05:191
15903996227,4cyclictest33-21ksoftirqd/222:20:192
15901996232,5cyclictest9-21ksoftirqd/021:00:200
15901996231,6cyclictest9-21ksoftirqd/020:10:290
15901996231,5cyclictest9-21ksoftirqd/021:39:200
15901996227,4cyclictest9-21ksoftirqd/020:40:190
134491620,4ptp4l0-21swapper/321:36:053
15901996131,4cyclictest9-21ksoftirqd/022:25:170
15901996130,5cyclictest9-21ksoftirqd/023:35:150
15901996129,5cyclictest9-21ksoftirqd/021:55:150
15901996129,3cyclictest9-21ksoftirqd/019:19:350
15901996128,5cyclictest9-21ksoftirqd/000:39:530
15901996127,7cyclictest9-21ksoftirqd/000:25:170
15901996125,4cyclictest9-21ksoftirqd/022:37:260
15901996030,7cyclictest9-21ksoftirqd/021:21:300
15901996030,4cyclictest9-21ksoftirqd/022:40:180
15901996030,4cyclictest9-21ksoftirqd/021:50:010
15901996029,6cyclictest9-21ksoftirqd/020:15:170
15901996029,6cyclictest9-21ksoftirqd/020:05:250
15901996029,6cyclictest9-21ksoftirqd/000:20:000
15901996028,4cyclictest9-21ksoftirqd/022:17:270
15901996027,4cyclictest9-21ksoftirqd/020:20:180
15901996027,3cyclictest9-21ksoftirqd/021:42:180
15901996026,7cyclictest9-21ksoftirqd/000:00:280
15901996026,6cyclictest9-21ksoftirqd/023:45:000
15901996021,5cyclictest9-21ksoftirqd/000:30:240
15902995911,46cyclictest9399-21kworker/1:021:15:281
15901995929,6cyclictest9-21ksoftirqd/019:25:000
15901995929,5cyclictest9-21ksoftirqd/021:50:140
15901995928,3cyclictest9-21ksoftirqd/023:11:170
15901995927,5cyclictest9-21ksoftirqd/021:29:060
15901995926,5cyclictest9-21ksoftirqd/019:35:170
15901995926,4cyclictest9-21ksoftirqd/022:58:440
15901995922,7cyclictest9-21ksoftirqd/019:30:270
15901995827,3cyclictest9-21ksoftirqd/023:51:220
15901995825,4cyclictest9-21ksoftirqd/019:25:410
15901995824,4cyclictest9-21ksoftirqd/022:23:210
15901995824,4cyclictest9-21ksoftirqd/021:08:360
15901995823,8cyclictest9-21ksoftirqd/023:00:150
15903995723,3cyclictest33-21ksoftirqd/220:25:172
15903995723,3cyclictest33-21ksoftirqd/220:25:172
15901995727,4cyclictest9-21ksoftirqd/022:09:080
15901995725,5cyclictest9-21ksoftirqd/019:40:170
15901995721,3cyclictest9-21ksoftirqd/020:45:230
15901995627,3cyclictest9-21ksoftirqd/000:10:160
15901995626,6cyclictest9-21ksoftirqd/023:30:190
15901995624,6cyclictest9-21ksoftirqd/022:15:010
15901995623,6cyclictest9-21ksoftirqd/023:20:000
15901995623,3cyclictest9-21ksoftirqd/022:34:400
15901995618,6cyclictest9-21ksoftirqd/023:05:130
134691560,3getstats0-21swapper/119:30:341
285982550,4sleep20-21swapper/223:05:152
169212550,5sleep20-21swapper/219:10:182
1590399552,6cyclictest33-21ksoftirqd/200:15:152
15903995521,6cyclictest33-21ksoftirqd/220:30:212
15901995529,6cyclictest9-21ksoftirqd/022:45:300
15901995528,7cyclictest9-21ksoftirqd/019:11:010
134491550,3ptp4l0-21swapper/322:36:203
1590399545,7cyclictest0-21swapper/222:15:222
1590399544,7cyclictest0-21swapper/222:05:282
1590399543,6cyclictest33-21ksoftirqd/222:35:162
1590399543,6cyclictest0-21swapper/223:10:242
134491540,4ptp4l0-21swapper/322:02:063
1590399536,6cyclictest0-21swapper/221:03:422
1590399534,6cyclictest0-21swapper/223:25:232
1590399534,6cyclictest0-21swapper/221:35:162
1590399534,12cyclictest0-21swapper/220:10:272
1590299531,50cyclictest9399-21kworker/1:019:42:481
1590399525,7cyclictest0-21swapper/221:05:232
1590399524,6cyclictest0-21swapper/222:50:282
1590399524,6cyclictest0-21swapper/219:40:232
1590399524,6cyclictest0-21swapper/200:00:252
1590399523,6cyclictest33-21ksoftirqd/220:00:242
1590399522,6cyclictest0-21swapper/223:20:152
1590399522,35cyclictest0-21swapper/200:08:092
15903995220,3cyclictest33-21ksoftirqd/223:42:352
134491520,4ptp4l0-21swapper/322:54:303
134491520,4ptp4l0-21swapper/321:44:583
134491520,3ptp4l0-21swapper/121:56:341
38132510,2sleep10-21swapper/122:10:211
1590399514,6cyclictest0-21swapper/222:00:252
1590399513,6cyclictest0-21swapper/221:40:272
1590399513,6cyclictest0-21swapper/220:35:302
1590399513,5cyclictest0-21swapper/222:55:012
15901995126,7cyclictest9-21ksoftirqd/019:45:150
15901995122,7cyclictest9-21ksoftirqd/022:00:200
134491510,5ptp4l0-21swapper/219:07:312
1590399505,6cyclictest0-21swapper/200:30:262
1590399504,6cyclictest0-21swapper/200:20:242
1590399503,6cyclictest0-21swapper/223:45:232
1590399500,6cyclictest33-21ksoftirqd/222:25:152
134491500,4ptp4l0-21swapper/223:57:452
134491500,4ptp4l0-21swapper/023:56:210
1590399494,7cyclictest0-21swapper/221:11:092
1590399493,6cyclictest33-21ksoftirqd/200:10:282
15903994933,8cyclictest33-21ksoftirqd/222:45:182
134491490,5ptp4l0-21swapper/319:06:153
134491490,3ptp4l0-21swapper/322:33:483
1590399483,6cyclictest0-21swapper/220:50:262
1590399483,6cyclictest0-21swapper/220:07:302
15903994832,5cyclictest33-21ksoftirqd/223:50:302
1590399483,11cyclictest0-21swapper/220:20:112
1590399482,31cyclictest0-21swapper/221:49:002
1590399480,6cyclictest33-21ksoftirqd/221:20:152
1590299483,43cyclictest9399-21kworker/1:019:57:281
1590199485,2cyclictest9-21ksoftirqd/000:05:280
134491480,5ptp4l26228-21turbostat00:09:591
1590399474,6cyclictest0-21swapper/222:12:382
1590399474,6cyclictest0-21swapper/219:15:182
1590399472,7cyclictest0-21swapper/223:35:242
1590399472,5cyclictest33-21ksoftirqd/222:40:162
1590399472,10cyclictest0-21swapper/221:55:212
1590399471,5cyclictest0-21swapper/223:00:322
1590299472,43cyclictest0-21swapper/123:05:391
1590199472,2cyclictest9-21ksoftirqd/023:25:280
134491470,4ptp4l0-21swapper/320:02:023
1590399466,3cyclictest121rcu_preempt21:30:202
1590399464,5cyclictest0-21swapper/222:30:482
1590399462,6cyclictest0-21swapper/219:45:252
1590399460,6cyclictest33-21ksoftirqd/220:45:312
1590399460,6cyclictest26623-21uname20:40:262
1590199463,2cyclictest9-21ksoftirqd/022:50:160
134491460,3ptp4l0-21swapper/323:29:403
134491460,3ptp4l0-21swapper/321:31:213
1590399454,7cyclictest0-21swapper/220:17:012
1590399452,29cyclictest0-21swapper/221:27:302
1590299452,42cyclictest0-21swapper/120:43:581
15901994539,4cyclictest9-21ksoftirqd/023:20:000
15901994533,4cyclictest9-21ksoftirqd/021:15:290
15901994514,6cyclictest9-21ksoftirqd/019:50:160
134491450,7ptp4l401ktimersoftd/323:05:273
134491450,3ptp4l0-21swapper/322:45:253
1590399444,5cyclictest33-21ksoftirqd/220:59:512
1590399443,6cyclictest33-21ksoftirqd/200:25:292
1590399443,6cyclictest0-21swapper/200:35:142
1590399440,6cyclictest8573-21missed_timers23:30:232
1590399440,6cyclictest23420-21if_enp4s019:25:172
1590299442,40cyclictest0-21swapper/119:12:381
134491440,9ptp4l0-21swapper/219:32:002
134491440,3ptp4l0-21swapper/122:44:101
1590399432,7cyclictest33-21ksoftirqd/221:15:322
134491430,5ptp4l0-21swapper/119:23:091
134491430,4ptp4l14700-21apt-get23:45:131
134491430,4ptp4l0-21swapper/300:22:323
1590399423,7cyclictest33-21ksoftirqd/219:35:232
1590399422,34cyclictest0-21swapper/219:20:142
134691420,9getstats0-21swapper/321:25:203
134691420,11getstats0-21swapper/322:41:543
134691420,10getstats27694-21/usr/sbin/munin19:35:303
134491420,5ptp4l0-21swapper/323:00:263
134491420,5ptp4l0-21swapper/219:50:172
134491420,5ptp4l0-21swapper/122:00:171
134491420,4ptp4l31828-21ntp_states23:10:281
134491420,4ptp4l2296-21users23:15:301
134491420,4ptp4l21056-21df_inode20:30:151
134491420,4ptp4l18764-21diskstats20:25:141
134491420,4ptp4l18764-21diskstats20:25:141
134491420,4ptp4l16947-21hddtemp_smartct21:30:161
1590399412,4cyclictest0-21swapper/221:55:012
134691410,10getstats0-21swapper/320:14:573
134491410,9ptp4l0-21swapper/223:16:332
134491410,5ptp4l17178-21/usr/sbin/munin19:10:223
134491410,5ptp4l14896-21ntp_states20:15:251
134491410,5ptp4l0-21swapper/119:45:131
134491410,4ptp4l6955-21users23:25:301
134491410,4ptp4l6791-21memory00:35:231
134491410,4ptp4l2701-21hddtemp_smartct19:50:143
134491410,4ptp4l26686-21iostat_ios23:00:201
134491410,4ptp4l19235-21memory19:15:211
134491410,4ptp4l1163-21apt-get00:25:141
134491410,4ptp4l10995-21ntp_states23:35:241
134491410,4ptp4l0-21swapper/323:30:153
134491410,4ptp4l0-21swapper/321:50:293
134491410,4ptp4l0-21swapper/123:20:271
134491410,4ptp4l0-21swapper/119:05:161
134491410,3ptp4l7884-21df_inode23:30:181
134491410,3ptp4l4741-21apt-get21:05:121
134491410,3ptp4l31109-21ls20:50:191
134491410,3ptp4l23053-21apt-get20:35:143
134491410,3ptp4l22605-21ls00:00:191
134491410,3ptp4l0-21swapper/322:18:303
1590299402,35cyclictest0-21swapper/121:20:271
1590299401,1cyclictest0-21swapper/120:37:381
134491400,5ptp4l0-21swapper/323:40:223
134491400,5ptp4l0-21swapper/121:13:571
134491400,4ptp4l16535-21hddtemp_smartct20:20:151
134491400,4ptp4l12321-21df_inode22:30:151
134491400,4ptp4l10301-21ntp_states20:05:211
134491400,4ptp4l0-21swapper/323:35:133
134491400,4ptp4l0-21swapper/323:15:213
134491400,4ptp4l0-21swapper/323:10:203
134491400,4ptp4l0-21swapper/122:20:201
134491400,4ptp4l0-21swapper/121:35:131
134491400,4ptp4l0-21swapper/120:55:211
134491400,4ptp4l0-21swapper/120:46:491
134491400,3ptp4l29539-21iostat_ios00:15:201
134491400,3ptp4l27307-21irqstats00:10:211
15903993927,3cyclictest33-21ksoftirqd/219:55:262
134491390,4ptp4l0-21swapper/322:58:363
134491390,4ptp4l0-21swapper/322:05:243
134491390,4ptp4l0-21swapper/321:00:153
134491390,4ptp4l0-21swapper/319:24:393
134491390,4ptp4l0-21swapper/123:40:161
134491390,4ptp4l0-21swapper/122:26:381
134491390,4ptp4l0-21swapper/121:50:231
134491390,4ptp4l0-21swapper/121:41:591
134491390,4ptp4l0-21swapper/120:00:191
134491390,4ptp4l0-21swapper/119:50:551
134491390,4ptp4l0-21swapper/119:25:031
134491390,4ptp4l0-21swapper/019:05:260
134491390,3ptp4l3911-21/usr/sbin/munin21:00:281
134491390,3ptp4l23338-21apt-get22:55:031
134491390,3ptp4l12597-21ntp_states20:10:231
134491390,3ptp4l1171-21ntp_states20:55:253
134491390,3ptp4l0-21swapper/119:35:251
134491390,2ptp4l24688-21strings21:45:221
15904993832,3cyclictest41-21ksoftirqd/321:05:183
134491380,4ptp4l0-21swapper/323:50:333
134491380,4ptp4l0-21swapper/323:46:433
134491380,4ptp4l0-21swapper/322:28:503
134491380,4ptp4l0-21swapper/321:55:033
134491380,4ptp4l0-21swapper/320:45:033
134491380,4ptp4l0-21swapper/320:42:353
134491380,4ptp4l0-21swapper/320:32:583
134491380,4ptp4l0-21swapper/320:25:033
134491380,4ptp4l0-21swapper/320:25:033
134491380,4ptp4l0-21swapper/319:46:133
134491380,4ptp4l0-21swapper/319:42:193
134491380,4ptp4l0-21swapper/319:15:363
134491380,4ptp4l0-21swapper/300:33:583
134491380,4ptp4l0-21swapper/300:29:103
134491380,4ptp4l0-21swapper/300:03:483
134491380,4ptp4l0-21swapper/123:55:141
134491380,4ptp4l0-21swapper/123:53:271
134491380,4ptp4l0-21swapper/122:50:181
134491380,4ptp4l0-21swapper/122:46:361
134491380,4ptp4l0-21swapper/122:37:011
134491380,4ptp4l0-21swapper/100:24:191
134491380,3ptp4l0-21swapper/322:14:293
134491380,3ptp4l0-21swapper/320:07:433
134491380,3ptp4l0-21swapper/319:25:223
134491380,2ptp4l6061-21memory22:15:211
15904993731,3cyclictest41-21ksoftirqd/320:51:003
134491370,4ptp4l0-21swapper/321:19:253
134491370,4ptp4l0-21swapper/320:21:333
134491370,4ptp4l0-21swapper/319:57:243
134491370,4ptp4l0-21swapper/319:30:103
134491370,4ptp4l0-21swapper/300:07:053
134491370,4ptp4l0-21swapper/100:30:181
134491370,3ptp4l0-21swapper/323:56:543
134491370,3ptp4l0-21swapper/323:21:313
134491370,3ptp4l0-21swapper/322:20:173
134491370,3ptp4l0-21swapper/300:36:063
134491370,3ptp4l0-21swapper/300:10:203
134491360,4ptp4l0-21swapper/321:23:133
134491360,4ptp4l0-21swapper/320:17:593
134491350,3ptp4l0-21swapper/321:14:343
134491340,3ptp4l0-21swapper/300:15:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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