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2025-12-06 - 18:58
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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 rackdslot4.osadl.org (updated Sat Dec 06, 2025 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
427791205172,21phc2sys0-21swapper/307:06:003
12612203169,22sleep20-21swapper/207:07:112
12332203169,22sleep00-21swapper/007:06:490
12342199165,22sleep10-21swapper/107:06:491
1705621530,4sleep3185199cyclictest07:40:143
2389921370,6sleep2185099cyclictest12:10:232
1848996624,4cyclictest9-21ksoftirqd/008:18:200
1849996536,4cyclictest25-21ksoftirqd/108:00:141
427291630,1ptp4l401ktimersoftd/312:40:003
1849996335,4cyclictest25-21ksoftirqd/112:00:191
1849996332,4cyclictest25-21ksoftirqd/109:40:221
1849996328,15cyclictest25-21ksoftirqd/110:30:211
1848996334,3cyclictest9-21ksoftirqd/011:40:230
427291620,1ptp4l401ktimersoftd/308:23:133
1848996227,6cyclictest9-21ksoftirqd/009:35:160
1849996130,4cyclictest25-21ksoftirqd/107:30:281
1849996030,4cyclictest25-21ksoftirqd/110:55:301
1849996030,4cyclictest25-21ksoftirqd/110:55:301
1848996030,3cyclictest9-21ksoftirqd/011:25:270
1848996029,4cyclictest9-21ksoftirqd/011:50:010
1848996029,4cyclictest9-21ksoftirqd/009:25:130
1849995930,4cyclictest25-21ksoftirqd/109:20:151
1849995929,4cyclictest25-21ksoftirqd/108:35:151
1849995928,4cyclictest25-21ksoftirqd/109:10:141
1849995926,7cyclictest25-21ksoftirqd/109:30:251
1849995926,4cyclictest25-21ksoftirqd/109:35:271
1849995925,3cyclictest25-21ksoftirqd/112:20:151
1848995931,3cyclictest9-21ksoftirqd/007:10:180
1848995927,4cyclictest9-21ksoftirqd/011:35:270
1848995924,6cyclictest9-21ksoftirqd/009:15:000
1849995827,4cyclictest25-21ksoftirqd/107:50:201
1849995826,4cyclictest25-21ksoftirqd/107:40:191
1849995824,7cyclictest25-21ksoftirqd/111:40:001
1849995824,4cyclictest25-21ksoftirqd/107:25:201
1848995827,3cyclictest9-21ksoftirqd/011:15:130
1848995825,5cyclictest9-21ksoftirqd/012:15:160
1848995823,8cyclictest9-21ksoftirqd/012:25:300
1848995819,8cyclictest9-21ksoftirqd/007:55:000
1848995817,6cyclictest9-21ksoftirqd/007:20:120
1849995728,5cyclictest25-21ksoftirqd/109:05:261
1849995726,5cyclictest25-21ksoftirqd/109:50:281
1849995725,4cyclictest25-21ksoftirqd/107:10:161
1849995724,4cyclictest25-21ksoftirqd/112:25:181
1849995717,10cyclictest25-21ksoftirqd/110:25:291
1848995717,7cyclictest9-21ksoftirqd/007:17:590
1849995627,4cyclictest25-21ksoftirqd/112:10:241
1849995625,5cyclictest25-21ksoftirqd/110:05:171
1849995625,4cyclictest25-21ksoftirqd/112:30:181
1849995625,4cyclictest25-21ksoftirqd/111:05:241
1849995625,4cyclictest25-21ksoftirqd/107:45:251
1849995624,4cyclictest25-21ksoftirqd/108:05:251
1849995622,5cyclictest25-21ksoftirqd/111:40:271
1848995627,4cyclictest9-21ksoftirqd/009:05:220
1848995623,5cyclictest9-21ksoftirqd/009:45:270
1848995622,9cyclictest9-21ksoftirqd/012:10:170
1848995620,4cyclictest9-21ksoftirqd/008:06:170
1848995616,6cyclictest9-21ksoftirqd/009:00:200
1850995536,16cyclictest12034-21cron09:40:002
1849995526,4cyclictest25-21ksoftirqd/107:20:261
1849995520,4cyclictest25-21ksoftirqd/110:10:231
1849995518,4cyclictest25-21ksoftirqd/111:25:291
1848995529,3cyclictest9-21ksoftirqd/008:58:250
1848995525,3cyclictest9-21ksoftirqd/009:40:160
1849995425,4cyclictest25-21ksoftirqd/110:45:231
1849995424,4cyclictest25-21ksoftirqd/112:18:561
1849995422,5cyclictest25-21ksoftirqd/107:35:161
1849995420,5cyclictest25-21ksoftirqd/111:45:211
184899548,3cyclictest9-21ksoftirqd/008:45:190
1848995415,6cyclictest9-21ksoftirqd/010:50:370
427291530,0ptp4l401ktimersoftd/310:19:383
1849995336,4cyclictest25-21ksoftirqd/109:25:251
1849995324,4cyclictest25-21ksoftirqd/108:10:151
1849995323,4cyclictest25-21ksoftirqd/108:27:521
1849995322,7cyclictest25-21ksoftirqd/110:53:221
1849995322,4cyclictest25-21ksoftirqd/110:35:151
1848995324,3cyclictest9-21ksoftirqd/010:05:230
1848995314,10cyclictest9-21ksoftirqd/009:55:150
184999524,6cyclictest227-21systemd-journal12:06:191
1849995236,13cyclictest24455-21cat10:05:001
1849995224,4cyclictest25-21ksoftirqd/112:35:401
1849995223,4cyclictest25-21ksoftirqd/107:55:261
1849995220,4cyclictest25-21ksoftirqd/111:50:221
1849995217,4cyclictest25-21ksoftirqd/109:15:181
1848995240,2cyclictest9-21ksoftirqd/010:25:190
1848995227,3cyclictest9-21ksoftirqd/008:00:010
1848995217,5cyclictest9-21ksoftirqd/011:53:150
1848995216,10cyclictest9-21ksoftirqd/010:35:150
1848995215,4cyclictest9-21ksoftirqd/010:02:560
184999514,7cyclictest121rcu_preempt09:45:241
1849995135,4cyclictest25-21ksoftirqd/111:10:151
1848995124,10cyclictest9-21ksoftirqd/012:10:000
1848995116,11cyclictest9-21ksoftirqd/007:47:070
184999504,6cyclictest121rcu_preempt09:00:161
1849995039,3cyclictest25-21ksoftirqd/111:20:191
1849995019,4cyclictest25-21ksoftirqd/111:00:251
1849995019,4cyclictest25-21ksoftirqd/110:20:251
1848995019,8cyclictest9-21ksoftirqd/009:50:230
184999495,7cyclictest25-21ksoftirqd/109:55:511
1849994942,3cyclictest25-21ksoftirqd/109:00:001
1849994932,4cyclictest25-21ksoftirqd/107:15:131
1849994921,3cyclictest25-21ksoftirqd/108:40:221
1848994918,4cyclictest9-21ksoftirqd/007:40:500
1848994917,6cyclictest9-21ksoftirqd/012:30:260
1848994910,5cyclictest9-21ksoftirqd/008:25:260
264642480,1sleep20-21swapper/212:15:252
1849994842,3cyclictest25-21ksoftirqd/108:19:591
1849994818,4cyclictest25-21ksoftirqd/111:15:181
1849994814,10cyclictest25-21ksoftirqd/110:15:141
184899483,7cyclictest9-21ksoftirqd/009:30:180
184899483,3cyclictest9-21ksoftirqd/007:50:190
1848994832,3cyclictest9-21ksoftirqd/010:10:160
1848994825,3cyclictest9-21ksoftirqd/011:00:180
184899481,2cyclictest121rcu_preempt10:55:280
184899481,2cyclictest121rcu_preempt10:55:280
184999474,3cyclictest121rcu_preempt08:30:241
1849994720,3cyclictest25-21ksoftirqd/108:21:331
1848994732,3cyclictest9-21ksoftirqd/007:30:140
1848994732,3cyclictest9-21ksoftirqd/007:29:590
184899472,2cyclictest121rcu_preempt11:10:150
1848994720,3cyclictest9-21ksoftirqd/012:35:400
1849994633,4cyclictest25-21ksoftirqd/110:40:261
1849994618,4cyclictest25-21ksoftirqd/108:49:171
184899468,2cyclictest9-21ksoftirqd/008:42:230
184899466,2cyclictest121rcu_preempt10:30:010
184899465,3cyclictest121rcu_preempt09:18:590
1848994620,4cyclictest9-21ksoftirqd/011:58:450
184899461,3cyclictest9-21ksoftirqd/008:30:420
184899460,2cyclictest121rcu_preempt12:00:190
1849994539,3cyclictest25-21ksoftirqd/108:55:011
1849994531,4cyclictest25-21ksoftirqd/111:55:241
184899457,3cyclictest9-21ksoftirqd/010:15:130
184899453,3cyclictest9-21ksoftirqd/011:05:190
1848994527,3cyclictest9-21ksoftirqd/011:20:190
1848994524,9cyclictest9-21ksoftirqd/010:40:170
1850994441,2cyclictest33-21ksoftirqd/210:05:012
1850994438,3cyclictest33-21ksoftirqd/207:20:012
1849994429,4cyclictest25-21ksoftirqd/111:30:261
1849994429,4cyclictest25-21ksoftirqd/111:30:261
184899443,3cyclictest9-21ksoftirqd/008:50:190
184899443,2cyclictest121rcu_preempt07:35:140
1848994428,9cyclictest9-21ksoftirqd/012:20:130
427291430,0ptp4l401ktimersoftd/310:20:223
427291430,0ptp4l401ktimersoftd/307:15:143
427291430,0ptp4l401ktimersoftd/307:10:263
184899435,3cyclictest9-21ksoftirqd/010:22:230
1848994338,2cyclictest101ktimersoftd/009:20:150
1848994322,3cyclictest9-21ksoftirqd/011:30:250
1848994322,3cyclictest9-21ksoftirqd/011:30:240
427291420,0ptp4l401ktimersoftd/310:31:053
427291420,0ptp4l401ktimersoftd/308:44:223
1850994237,3cyclictest33-21ksoftirqd/207:39:592
184899428,2cyclictest9-21ksoftirqd/008:21:380
184899423,6cyclictest9-21ksoftirqd/010:45:250
184899421,10cyclictest9-21ksoftirqd/008:35:230
1850994135,3cyclictest33-21ksoftirqd/208:05:012
184899413,3cyclictest121rcu_preempt08:10:240
427291400,0ptp4l401ktimersoftd/310:04:063
1851994033,4cyclictest41-21ksoftirqd/312:12:293
1851994033,4cyclictest41-21ksoftirqd/310:55:143
1851994033,4cyclictest41-21ksoftirqd/310:55:143
1850994036,3cyclictest33-21ksoftirqd/209:00:012
1850994034,3cyclictest33-21ksoftirqd/208:00:002
1851993933,4cyclictest41-21ksoftirqd/312:21:483
1851993933,4cyclictest41-21ksoftirqd/312:03:183
1851993933,4cyclictest41-21ksoftirqd/311:41:433
1851993933,4cyclictest41-21ksoftirqd/310:51:093
1851993932,4cyclictest41-21ksoftirqd/311:57:343
1850993934,3cyclictest33-21ksoftirqd/208:25:002
1850993934,3cyclictest33-21ksoftirqd/208:20:002
1850993933,3cyclictest33-21ksoftirqd/209:15:002
1850993928,4cyclictest33-21ksoftirqd/207:15:012
1850993927,9cyclictest33-21ksoftirqd/212:20:262
1851993833,3cyclictest41-21ksoftirqd/311:21:143
1851993833,3cyclictest41-21ksoftirqd/310:45:103
1851993833,3cyclictest41-21ksoftirqd/308:36:293
1851993833,3cyclictest41-21ksoftirqd/308:08:503
1851993832,4cyclictest41-21ksoftirqd/308:55:513
1851993831,4cyclictest41-21ksoftirqd/311:10:513
1850993835,2cyclictest33-21ksoftirqd/209:19:592
1850993833,3cyclictest2180-21apt08:15:002
1850993832,3cyclictest33-21ksoftirqd/208:35:192
1850993824,4cyclictest33-21ksoftirqd/209:50:012
185099380,3cyclictest121rcu_preempt11:40:012
1851993732,3cyclictest41-21ksoftirqd/310:25:153
1851993732,3cyclictest41-21ksoftirqd/309:54:593
1851993732,3cyclictest41-21ksoftirqd/309:11:003
1851993732,3cyclictest41-21ksoftirqd/309:05:423
1851993732,3cyclictest41-21ksoftirqd/307:25:333
1851993731,4cyclictest41-21ksoftirqd/311:49:543
1851993730,4cyclictest427291ptp4l09:00:423
1851993730,4cyclictest41-21ksoftirqd/310:38:263
1850993733,3cyclictest33-21ksoftirqd/210:55:232
1850993733,3cyclictest33-21ksoftirqd/210:55:232
1850993732,3cyclictest33-21ksoftirqd/208:49:592
1850993731,4cyclictest33-21ksoftirqd/210:40:132
1850993731,4cyclictest33-21ksoftirqd/207:47:062
1850993730,4cyclictest33-21ksoftirqd/212:00:002
1850993726,9cyclictest33-21ksoftirqd/208:05:172
1851993631,3cyclictest41-21ksoftirqd/311:04:263
1851993631,3cyclictest41-21ksoftirqd/307:45:443
1851993631,3cyclictest41-21ksoftirqd/307:23:173
1851993630,4cyclictest41-21ksoftirqd/312:26:093
1851993630,4cyclictest41-21ksoftirqd/309:39:283
1850993631,3cyclictest33-21ksoftirqd/212:35:012
1850993631,3cyclictest33-21ksoftirqd/209:55:002
1850993630,4cyclictest33-21ksoftirqd/210:17:502
1850993630,3cyclictest33-21ksoftirqd/210:55:002
1850993624,9cyclictest33-21ksoftirqd/212:35:432
185099362,3cyclictest33-21ksoftirqd/211:40:192
1851993530,3cyclictest41-21ksoftirqd/307:54:063
1851993530,3cyclictest41-21ksoftirqd/307:35:353
1851993529,4cyclictest41-21ksoftirqd/310:41:583
1851993529,4cyclictest41-21ksoftirqd/308:13:023
1851993528,4cyclictest41-21ksoftirqd/308:50:013
1850993530,3cyclictest33-21ksoftirqd/210:20:142
1850993530,3cyclictest33-21ksoftirqd/209:30:182
1850993529,4cyclictest33-21ksoftirqd/211:31:452
1850993529,4cyclictest33-21ksoftirqd/211:31:452
1850993529,4cyclictest33-21ksoftirqd/211:22:372
1850993529,4cyclictest33-21ksoftirqd/209:02:212
1850993529,4cyclictest33-21ksoftirqd/208:44:392
1850993528,5cyclictest33-21ksoftirqd/209:26:072
185099352,24cyclictest33-21ksoftirqd/210:50:002
1851993429,3cyclictest41-21ksoftirqd/308:25:053
1851993429,3cyclictest41-21ksoftirqd/308:02:533
1851993428,4cyclictest41-21ksoftirqd/310:08:203
1850993430,3cyclictest33-21ksoftirqd/208:30:002
1850993429,3cyclictest33-21ksoftirqd/210:05:562
1850993429,3cyclictest33-21ksoftirqd/208:50:222
1850993429,3cyclictest33-21ksoftirqd/207:55:002
1850993428,4cyclictest33-21ksoftirqd/211:10:282
1850993428,4cyclictest33-21ksoftirqd/211:09:582
1850993428,4cyclictest33-21ksoftirqd/209:06:462
1850993428,4cyclictest33-21ksoftirqd/207:42:322
1850993428,4cyclictest33-21ksoftirqd/207:23:402
1850993428,3cyclictest33-21ksoftirqd/211:46:172
185099341,3cyclictest121rcu_preempt12:00:212
427291330,0ptp4l401ktimersoftd/309:55:213
1851993328,3cyclictest41-21ksoftirqd/312:17:453
1851993328,3cyclictest41-21ksoftirqd/311:50:113
1851993328,3cyclictest41-21ksoftirqd/310:11:333
1851993328,3cyclictest41-21ksoftirqd/309:47:263
1851993328,3cyclictest41-21ksoftirqd/307:33:173
1850993327,4cyclictest33-21ksoftirqd/211:30:002
1850993327,4cyclictest33-21ksoftirqd/211:05:012
1850993327,3cyclictest33-21ksoftirqd/211:55:002
1850993327,3cyclictest33-21ksoftirqd/210:00:012
1850993318,4cyclictest33-21ksoftirqd/210:35:002
427291320,0ptp4l401ktimersoftd/309:25:543
1851993227,3cyclictest41-21ksoftirqd/311:38:243
1851993227,3cyclictest41-21ksoftirqd/309:42:373
1851993226,4cyclictest41-21ksoftirqd/311:34:263
1851993226,4cyclictest41-21ksoftirqd/311:34:263
1850993226,4cyclictest33-21ksoftirqd/207:30:052
4277913123,3phc2sys41-21ksoftirqd/309:20:133
1851993126,3cyclictest41-21ksoftirqd/312:09:423
1851993126,3cyclictest41-21ksoftirqd/308:34:293
1851993126,3cyclictest41-21ksoftirqd/308:17:453
1851993125,4cyclictest41-21ksoftirqd/311:28:003
1851993125,4cyclictest41-21ksoftirqd/309:19:393
1851993125,3cyclictest41-21ksoftirqd/311:08:583
1851993124,5cyclictest41-21ksoftirqd/312:32:473
1850993128,2cyclictest33-21ksoftirqd/210:15:002
1850993126,3cyclictest33-21ksoftirqd/211:19:592
1850993126,3cyclictest33-21ksoftirqd/210:25:202
1850993126,3cyclictest33-21ksoftirqd/209:43:542
1850993125,3cyclictest33-21ksoftirqd/212:25:172
1850993125,3cyclictest33-21ksoftirqd/209:25:002
427291300,0ptp4l401ktimersoftd/307:55:353
1851993024,4cyclictest41-21ksoftirqd/308:46:413
1850993026,3cyclictest33-21ksoftirqd/210:35:142
1850993025,3cyclictest33-21ksoftirqd/208:33:252
1850993024,3cyclictest33-21ksoftirqd/212:05:212
1850993017,11cyclictest33-21ksoftirqd/207:29:592
1851992823,3cyclictest41-21ksoftirqd/309:33:003
1851992621,3cyclictest41-21ksoftirqd/311:16:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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