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2026-03-30 - 09:08
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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 rack7slot1.osadl.org (updated Mon Mar 30, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2948211757,55sleep20-21swapper/219:08:152
2845211251,56sleep30-21swapper/319:07:043
2733210248,21sleep10-21swapper/119:05:501
299628352,26sleep00-21swapper/019:08:490
220092550,1sleep022948-21stress23:37:390
3198995420,19cyclictest0-21swapper/222:10:212
3198995420,19cyclictest0-21swapper/222:10:212
319899525,29cyclictest22950-21stress22:25:382
3196995117,23cyclictest0-21swapper/023:00:200
3196995117,23cyclictest0-21swapper/021:30:240
3196995115,24cyclictest0-21swapper/020:05:110
3196995017,22cyclictest0-21swapper/023:40:170
3196995015,19cyclictest0-21swapper/023:10:010
319899494,26cyclictest25590-21if_eth022:30:212
319899493,28cyclictest22950-21stress00:35:232
3196994916,22cyclictest0-21swapper/021:49:380
319899483,29cyclictest1899-21runrttasks21:48:172
3196994816,22cyclictest0-21swapper/000:15:300
319899473,28cyclictest1899-21runrttasks23:49:552
3196994716,21cyclictest0-21swapper/021:50:140
3196994716,19cyclictest0-21swapper/000:35:250
319899466,23cyclictest22948-21stress00:05:342
319899466,23cyclictest22948-21stress00:05:332
319899463,28cyclictest22950-21stress23:15:012
319899454,30cyclictest22950-21stress00:25:292
319899454,26cyclictest22950-21stress23:51:572
319899453,30cyclictest1899-21runrttasks20:41:442
3198994520,22cyclictest0-21swapper/223:18:382
319699457,27cyclictest0-21swapper/021:35:110
319699457,27cyclictest0-21swapper/021:35:100
3196994515,22cyclictest0-21swapper/020:00:160
3196994515,21cyclictest0-21swapper/022:10:000
3196994514,22cyclictest0-21swapper/000:05:190
3196994514,22cyclictest0-21swapper/000:05:180
319899443,29cyclictest1899-21runrttasks20:32:272
319899443,25cyclictest22948-21stress23:36:042
3198994423,18cyclictest0-21swapper/200:14:112
3198994422,20cyclictest0-21swapper/200:20:342
319799445,18cyclictest0-21swapper/122:57:031
3196994415,20cyclictest0-21swapper/000:25:350
3196994413,23cyclictest0-21swapper/019:45:180
3196994413,23cyclictest0-21swapper/019:40:150
3196994413,17cyclictest0-21swapper/022:45:130
3196994413,17cyclictest0-21swapper/022:45:120
319899435,23cyclictest0-21swapper/222:35:322
319899433,27cyclictest9685-21cat19:20:222
319899433,27cyclictest3713-21latency_hist20:25:022
319899433,26cyclictest22950-21stress22:48:582
319899433,26cyclictest22950-21stress22:48:582
3198994321,19cyclictest0-21swapper/222:54:512
3198994319,21cyclictest0-21swapper/223:55:212
3198994319,21cyclictest0-21swapper/223:55:202
3198994318,23cyclictest0-21swapper/221:35:012
3196994315,25cyclictest0-21swapper/022:31:350
3196994314,26cyclictest0-21swapper/022:00:210
3196994314,21cyclictest0-21swapper/020:55:120
3196994312,23cyclictest0-21swapper/020:40:190
319899423,28cyclictest23709-21hostname21:10:202
319899423,26cyclictest12084-21grep19:25:242
319899423,26cyclictest12084-21grep19:25:242
3198994223,17cyclictest0-21swapper/223:25:292
3198994223,17cyclictest0-21swapper/223:25:292
3196994218,21cyclictest0-21swapper/021:55:290
3196994216,23cyclictest0-21swapper/023:48:550
3196994216,23cyclictest0-21swapper/023:11:460
3196994216,23cyclictest0-21swapper/000:00:300
3196994215,24cyclictest0-21swapper/022:19:220
3196994214,20cyclictest0-21swapper/000:20:260
3196994213,22cyclictest0-21swapper/021:00:230
3196994212,23cyclictest0-21swapper/020:30:240
3196994212,22cyclictest0-21swapper/019:35:170
319899415,24cyclictest0-21swapper/221:05:002
319899415,24cyclictest0-21swapper/221:05:002
319899415,24cyclictest0-21swapper/219:15:242
319899413,25cyclictest9384-21awk21:50:362
319899413,25cyclictest3442-21aten2_r7power_c19:10:112
3196994114,24cyclictest0-21swapper/022:55:210
3196994114,24cyclictest0-21swapper/021:22:360
3196994112,21cyclictest0-21swapper/020:20:140
3196994112,19cyclictest0-21swapper/021:15:280
319899405,23cyclictest0-21swapper/219:30:102
319899403,22cyclictest22948-21stress22:15:142
3198994020,17cyclictest0-21swapper/221:25:212
3198994020,17cyclictest0-21swapper/221:25:212
3198994019,18cyclictest0-21swapper/200:35:002
3198994018,19cyclictest0-21swapper/222:23:092
3197994010,27cyclictest0-21swapper/123:10:341
319699407,25cyclictest0-21swapper/020:45:230
319699407,24cyclictest0-21swapper/019:20:190
3196994018,19cyclictest0-21swapper/021:40:220
3196994014,23cyclictest0-21swapper/022:54:560
3196994010,21cyclictest0-21swapper/023:25:220
3196994010,21cyclictest0-21swapper/023:25:220
319899398,29cyclictest18725-21fschecks_time23:30:182
319899395,22cyclictest0-21swapper/220:35:122
319899394,20cyclictest124332expr22:00:142
3198993920,17cyclictest0-21swapper/221:35:322
3198993920,17cyclictest0-21swapper/221:35:322
319699397,25cyclictest0-21swapper/020:35:160
319699395,27cyclictest0-21swapper/020:15:150
319699395,26cyclictest0-21swapper/019:55:010
3196993919,17cyclictest0-21swapper/000:10:240
3196993913,23cyclictest0-21swapper/022:12:130
3196993913,23cyclictest0-21swapper/022:12:130
3196993913,19cyclictest0-21swapper/020:50:160
319899386,29cyclictest22948-21stress23:23:232
319899386,29cyclictest22948-21stress23:23:232
319899386,29cyclictest0-21swapper/222:05:162
319899385,22cyclictest0-21swapper/220:15:132
319899385,21cyclictest0-21swapper/219:35:112
319699386,22cyclictest0-21swapper/021:10:290
3196993823,13cyclictest0-21swapper/021:25:190
3196993823,13cyclictest0-21swapper/021:25:190
3196993822,14cyclictest0-21swapper/022:25:320
3196993818,17cyclictest0-21swapper/023:50:230
3196993817,18cyclictest0-21swapper/023:30:330
3196993817,18cyclictest0-21swapper/023:20:280
3196993817,18cyclictest0-21swapper/023:20:280
3196993817,18cyclictest0-21swapper/022:41:470
3196993814,21cyclictest0-21swapper/022:20:030
3196993813,22cyclictest0-21swapper/022:37:320
319699381,31cyclictest0-21swapper/021:08:130
319699381,31cyclictest0-21swapper/021:08:130
3196993812,18cyclictest0-21swapper/020:10:200
3196993811,19cyclictest0-21swapper/019:25:130
3196993811,19cyclictest0-21swapper/019:25:120
3196993810,17cyclictest0-21swapper/020:25:130
93282374,14sleep30-21swapper/320:35:223
319899378,26cyclictest0-21swapper/223:05:222
319899376,28cyclictest22948-21stress21:21:412
319899375,20cyclictest0-21swapper/220:55:012
319899373,31cyclictest6251-21cat23:00:222
319899373,31cyclictest29917-21wget20:10:142
319899373,31cyclictest18868-21/usr/sbin/munin21:00:192
3198993710,24cyclictest0-21swapper/221:16:582
3196993711,19cyclictest0-21swapper/019:15:120
3196993711,18cyclictest0-21swapper/023:18:470
3196993710,19cyclictest0-21swapper/019:55:090
189932375,16sleep30-21swapper/319:45:013
319899366,27cyclictest0-21swapper/223:40:172
319899366,26cyclictest22948-21stress22:40:272
319899365,29cyclictest0-21swapper/220:55:172
319899365,29cyclictest0-21swapper/220:00:262
319899363,30cyclictest21297-21/usr/sbin/munin19:50:202
319799367,26cyclictest0-21swapper/123:20:121
319799367,26cyclictest0-21swapper/123:20:121
3197993614,19cyclictest0-21swapper/122:45:071
3197993614,19cyclictest0-21swapper/122:45:071
3197993612,21cyclictest0-21swapper/123:15:311
319699365,29cyclictest0-21swapper/019:10:190
319699365,13cyclictest1888-21snmpd23:56:120
319699365,13cyclictest1888-21snmpd23:56:120
184152365,15sleep10-21swapper/120:57:451
80702355,15sleep30-21swapper/319:18:313
319899356,26cyclictest22948-21stress22:55:092
319899356,26cyclictest0-21swapper/219:40:142
319899353,29cyclictest27688-21/usr/sbin/munin20:05:202
319899353,29cyclictest22948-21stress00:00:282
319899353,29cyclictest14067-21taskset20:46:552
319799357,26cyclictest0-21swapper/122:35:151
319799357,25cyclictest0-21swapper/123:36:371
3196993513,20cyclictest0-21swapper/000:30:280
315312354,15sleep30-21swapper/320:13:043
11572355,15sleep30-21swapper/320:16:493
77082344,15sleep30-21swapper/320:32:343
3199993414,17cyclictest0-21swapper/321:28:323
3199993414,17cyclictest0-21swapper/321:28:323
3199993413,18cyclictest0-21swapper/300:18:223
319899348,23cyclictest0-21swapper/200:20:002
319899343,28cyclictest19157-21/usr/sbin/munin19:45:182
319899343,28cyclictest1888-21snmpd21:41:352
319899343,28cyclictest10409-21df21:55:172
319799348,24cyclictest0-21swapper/122:44:561
3197993412,20cyclictest0-21swapper/121:46:181
3196993410,18cyclictest0-21swapper/019:34:140
251622345,14sleep10-21swapper/119:58:281
229852345,14sleep10-21swapper/119:52:451
208962345,14sleep10-21swapper/119:48:321
185752345,15sleep10-21swapper/119:41:061
164952344,15sleep30-21swapper/319:36:393
34752335,13sleep10-21swapper/120:23:171
319899335,26cyclictest0-21swapper/220:25:132
319899333,27cyclictest23429-21/usr/sbin/munin19:55:182
319799335,17cyclictest0-21swapper/120:18:351
271552335,12sleep10-21swapper/120:01:441
228122335,12sleep30-21swapper/319:50:433
185642334,14sleep30-21swapper/319:41:003
139982335,11sleep30-21swapper/320:46:083
78842325,11sleep10-21swapper/119:16:121
3199993214,15cyclictest0-21swapper/323:42:513
3199993214,15cyclictest0-21swapper/323:28:573
3199993214,15cyclictest0-21swapper/323:28:573
3199993214,15cyclictest0-21swapper/300:30:333
3199993210,19cyclictest0-21swapper/323:50:313
3199993210,19cyclictest0-21swapper/323:00:513
319799329,17cyclictest0-21swapper/120:34:141
319799326,23cyclictest0-21swapper/122:05:221
3197993214,15cyclictest0-21swapper/121:54:421
3197993210,19cyclictest0-21swapper/100:00:301
313602325,14sleep10-21swapper/120:10:541
205272324,15sleep30-21swapper/321:02:383
3199993116,13cyclictest0-21swapper/321:15:303
3199993111,18cyclictest0-21swapper/300:10:163
3199993111,17cyclictest0-21swapper/322:35:233
3199993110,18cyclictest0-21swapper/321:43:133
3199993110,18cyclictest0-21swapper/321:10:403
3197993114,15cyclictest0-21swapper/123:40:091
3197993114,14cyclictest0-21swapper/100:30:001
294972314,13sleep30-21swapper/320:09:363
3199993011,17cyclictest0-21swapper/322:40:023
3199993011,16cyclictest0-21swapper/323:10:283
319799307,21cyclictest0-21swapper/100:20:311
319799306,22cyclictest0-21swapper/121:55:331
319799305,19cyclictest0-21swapper/120:50:551
319799305,18cyclictest0-21swapper/119:35:051
3197993016,13cyclictest0-21swapper/120:09:101
3197993015,13cyclictest0-21swapper/123:05:331
3197993015,12cyclictest0-21swapper/122:00:041
3197993014,14cyclictest0-21swapper/121:40:131
3197993014,13cyclictest0-21swapper/100:15:221
3197993013,15cyclictest0-21swapper/123:05:011
3197993013,14cyclictest0-21swapper/119:25:121
3197993013,14cyclictest0-21swapper/119:25:121
3197993012,16cyclictest0-21swapper/121:30:021
3197993012,16cyclictest0-21swapper/121:30:011
3197993011,13cyclictest0-21swapper/121:05:071
3197993011,13cyclictest0-21swapper/121:05:061
3197993011,13cyclictest0-21swapper/120:26:241
102562304,11sleep30-21swapper/319:23:523
319999296,20cyclictest0-21swapper/321:45:143
3199992915,12cyclictest0-21swapper/300:23:313
3199992914,12cyclictest0-21swapper/323:55:303
3199992914,12cyclictest0-21swapper/323:55:303
3199992914,12cyclictest0-21swapper/322:15:303
319799296,21cyclictest0-21swapper/122:30:191
319799296,17cyclictest0-21swapper/119:30:061
319799295,22cyclictest0-21swapper/121:00:191
319799295,18cyclictest0-21swapper/119:21:591
3197992915,12cyclictest0-21swapper/122:10:141
3197992915,12cyclictest0-21swapper/122:10:141
3197992915,12cyclictest0-21swapper/121:30:171
3197992915,11cyclictest0-21swapper/121:15:361
3197992913,14cyclictest0-21swapper/122:25:291
3197992912,15cyclictest0-21swapper/100:05:131
3197992912,15cyclictest0-21swapper/100:05:131
3197992912,14cyclictest0-21swapper/119:10:191
3197992911,13cyclictest0-21swapper/120:43:141
319999286,19cyclictest0-21swapper/323:45:213
319999285,21cyclictest0-21swapper/321:08:303
319999285,21cyclictest0-21swapper/321:08:293
319999285,21cyclictest0-21swapper/320:40:093
319999285,21cyclictest0-21swapper/320:26:503
319999285,21cyclictest0-21swapper/320:02:403
319999285,21cyclictest0-21swapper/319:33:403
319999285,21cyclictest0-21swapper/319:28:103
319999285,21cyclictest0-21swapper/319:28:093
319999285,21cyclictest0-21swapper/319:12:193
3199992816,11cyclictest0-21swapper/320:21:213
3199992816,11cyclictest0-21swapper/319:55:303
3199992815,11cyclictest0-21swapper/322:55:183
3199992815,11cyclictest0-21swapper/322:01:263
3199992814,12cyclictest0-21swapper/323:30:053
3199992814,12cyclictest0-21swapper/322:50:313
3199992813,12cyclictest0-21swapper/300:25:173
319799288,15cyclictest0-21swapper/120:35:011
319799286,20cyclictest0-21swapper/123:58:411
319799286,20cyclictest0-21swapper/123:58:401
319799286,20cyclictest0-21swapper/123:30:311
319799285,21cyclictest0-21swapper/120:47:491
3197992813,13cyclictest0-21swapper/123:50:331
3197992810,16cyclictest0-21swapper/100:35:241
319999279,15cyclictest0-21swapper/323:35:133
319999275,20cyclictest0-21swapper/322:10:323
319999275,20cyclictest0-21swapper/322:10:323
319999275,20cyclictest0-21swapper/320:52:093
3199992715,11cyclictest0-21swapper/320:55:293
3199992713,12cyclictest0-21swapper/300:35:143
319799277,18cyclictest0-21swapper/123:25:291
319799277,18cyclictest0-21swapper/123:25:291
319799276,18cyclictest0-21swapper/100:10:361
3197992714,11cyclictest0-21swapper/100:30:311
319999266,18cyclictest0-21swapper/322:30:263
319999266,18cyclictest0-21swapper/300:05:223
319999266,18cyclictest0-21swapper/300:05:223
3199992613,11cyclictest0-21swapper/321:55:233
319799265,19cyclictest0-21swapper/122:15:161
319999256,17cyclictest0-21swapper/321:35:013
3199992511,12cyclictest0-21swapper/321:50:153
319799258,15cyclictest0-21swapper/121:35:321
319799258,15cyclictest0-21swapper/121:35:321
319799256,17cyclictest0-21swapper/122:50:111
319799256,17cyclictest0-21swapper/121:10:301
3197992514,9cyclictest0-21swapper/123:45:221
126312252,4sleep322949-21stress23:15:263
319999246,16cyclictest0-21swapper/323:05:233
319999246,16cyclictest0-21swapper/322:20:313
3199992312,9cyclictest0-21swapper/322:05:163
319999226,14cyclictest0-21swapper/321:35:253
319999226,14cyclictest0-21swapper/321:35:253
319999226,13cyclictest0-21swapper/322:25:193
224982222,4sleep122947-21stress22:24:301
319999216,13cyclictest0-21swapper/321:20:213
319999213,16cyclictest22947-21stress00:03:293
156032212,3sleep322947-21stress23:22:373
156032212,3sleep322947-21stress23:22:373
319799202,14cyclictest22954-21iperf21:22:091
319999193,14cyclictest31554-21wc22:45:143
319999193,14cyclictest31554-21wc22:45:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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