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2026-05-07 - 07:58
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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 792 highest latencies:
System rackdslot3.osadl.org (updated Thu May 07, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13692200167,22sleep30-21swapper/319:05:513
16872199165,23sleep00-21swapper/019:09:490
15012198165,22sleep20-21swapper/219:07:262
16412196163,22sleep10-21swapper/119:09:151
544221420,4sleep2199999cyclictest23:45:182
1394918263,10phc2sys0-21swapper/319:10:003
1997997020,5cyclictest25-21ksoftirqd/119:15:141
1997997020,5cyclictest25-21ksoftirqd/119:15:141
263582640,3sleep30-21swapper/300:30:123
2000996232,11cyclictest41-21ksoftirqd/320:40:173
1997996027,5cyclictest25-21ksoftirqd/121:50:011
1997995828,4cyclictest25-21ksoftirqd/119:55:011
24472560,3sleep22448-21fschecks_count19:10:142
277092550,26sleep233-21ksoftirqd/221:10:132
2000995310,10cyclictest41-21ksoftirqd/321:20:033
1997995324,9cyclictest25-21ksoftirqd/119:10:271
200099529,8cyclictest41-21ksoftirqd/319:20:133
2000995217,7cyclictest41-21ksoftirqd/321:20:003
1999995216,9cyclictest33-21ksoftirqd/220:45:182
1996995230,6cyclictest9-21ksoftirqd/019:35:010
267532510,1sleep20-21swapper/220:00:172
2000995120,4cyclictest41-21ksoftirqd/321:35:153
2000995119,4cyclictest41-21ksoftirqd/323:10:153
2000995116,7cyclictest41-21ksoftirqd/319:55:133
2000995022,4cyclictest41-21ksoftirqd/319:35:003
2000995017,7cyclictest41-21ksoftirqd/320:20:003
2000995017,4cyclictest41-21ksoftirqd/322:15:133
2000995017,4cyclictest41-21ksoftirqd/322:15:133
2000995015,3cyclictest41-21ksoftirqd/319:45:173
2000995013,7cyclictest41-21ksoftirqd/322:30:003
139391500,1ptp4l401ktimersoftd/323:31:133
200099499,7cyclictest41-21ksoftirqd/323:05:253
2000994916,9cyclictest41-21ksoftirqd/300:35:143
2000994913,9cyclictest41-21ksoftirqd/319:15:253
2000994913,9cyclictest41-21ksoftirqd/319:15:253
2000994913,8cyclictest41-21ksoftirqd/323:25:173
2000994913,4cyclictest41-21ksoftirqd/321:30:143
2000994911,8cyclictest41-21ksoftirqd/322:50:013
1997994916,4cyclictest25-21ksoftirqd/121:10:001
200099487,7cyclictest41-21ksoftirqd/321:55:283
2000994819,3cyclictest41-21ksoftirqd/319:25:233
2000994818,4cyclictest41-21ksoftirqd/323:17:203
2000994813,6cyclictest41-21ksoftirqd/322:15:003
200099476,10cyclictest41-21ksoftirqd/322:55:163
2000994719,7cyclictest41-21ksoftirqd/323:00:183
2000994718,7cyclictest41-21ksoftirqd/322:05:173
2000994717,7cyclictest41-21ksoftirqd/300:20:193
2000994717,4cyclictest41-21ksoftirqd/323:43:083
2000994717,3cyclictest41-21ksoftirqd/321:50:143
2000994715,9cyclictest41-21ksoftirqd/322:25:003
2000994712,8cyclictest41-21ksoftirqd/320:25:003
2000994710,8cyclictest41-21ksoftirqd/320:35:243
2000994710,7cyclictest41-21ksoftirqd/322:30:243
200099470,6cyclictest41-21ksoftirqd/321:15:003
199799473,2cyclictest121rcu_preempt20:14:591
199699475,3cyclictest9-21ksoftirqd/020:55:270
43482460,2sleep10-21swapper/120:20:181
200099467,7cyclictest41-21ksoftirqd/323:50:133
2000994617,8cyclictest41-21ksoftirqd/322:00:143
2000994616,7cyclictest41-21ksoftirqd/321:00:013
2000994612,6cyclictest41-21ksoftirqd/319:50:113
2000994612,4cyclictest41-21ksoftirqd/300:05:013
2000994610,7cyclictest41-21ksoftirqd/323:55:143
2000994610,7cyclictest41-21ksoftirqd/323:55:143
1999994640,3cyclictest23355-21tr21:00:192
1996994629,8cyclictest9-21ksoftirqd/021:45:130
200099459,8cyclictest41-21ksoftirqd/300:20:003
200099456,7cyclictest41-21ksoftirqd/320:25:183
200099450,7cyclictest41-21ksoftirqd/320:30:123
1999994540,3cyclictest8156-21cron20:30:012
1997994533,2cyclictest25-21ksoftirqd/122:20:001
1997994533,2cyclictest25-21ksoftirqd/122:20:001
200099448,9cyclictest41-21ksoftirqd/319:35:233
200099445,2cyclictest41-21ksoftirqd/322:35:203
2000994434,3cyclictest41-21ksoftirqd/322:45:003
2000994417,7cyclictest41-21ksoftirqd/322:50:173
2000994410,7cyclictest41-21ksoftirqd/321:05:513
1999994427,9cyclictest33-21ksoftirqd/222:25:012
1999994426,9cyclictest33-21ksoftirqd/220:35:012
199699442,4cyclictest9-21ksoftirqd/023:20:150
200099435,4cyclictest41-21ksoftirqd/321:40:263
200099431,3cyclictest121rcu_preempt20:45:233
2000994313,3cyclictest41-21ksoftirqd/323:20:173
2000994312,8cyclictest41-21ksoftirqd/321:00:263
2000994310,11cyclictest41-21ksoftirqd/323:45:233
1999994323,10cyclictest33-21ksoftirqd/219:35:192
199999430,5cyclictest0-21swapper/223:25:232
1996994317,3cyclictest9-21ksoftirqd/000:20:140
199699431,6cyclictest9-21ksoftirqd/022:20:260
200099429,8cyclictest41-21ksoftirqd/320:05:263
200099429,6cyclictest41-21ksoftirqd/300:05:223
200099426,4cyclictest41-21ksoftirqd/300:15:003
2000994230,3cyclictest41-21ksoftirqd/321:49:473
1999994227,5cyclictest33-21ksoftirqd/222:50:182
1999994213,18cyclictest33-21ksoftirqd/222:00:192
199799423,9cyclictest25-21ksoftirqd/121:40:131
1997994236,3cyclictest25-21ksoftirqd/122:35:001
1997994210,4cyclictest25-21ksoftirqd/123:40:191
200099414,3cyclictest121rcu_preempt23:35:163
2000994113,3cyclictest41-21ksoftirqd/319:40:203
199999414,3cyclictest33-21ksoftirqd/219:50:102
199799418,3cyclictest25-21ksoftirqd/120:25:241
1997994133,3cyclictest25-21ksoftirqd/121:20:121
199799410,2cyclictest121rcu_preempt19:25:001
199699413,3cyclictest9-21ksoftirqd/023:30:250
199699413,3cyclictest121rcu_preempt23:10:130
199699412,2cyclictest121rcu_preempt00:05:510
200099401,8cyclictest121rcu_preempt20:50:153
1999994036,2cyclictest33-21ksoftirqd/223:20:002
1999994023,9cyclictest33-21ksoftirqd/221:55:012
1999994022,9cyclictest33-21ksoftirqd/200:15:012
199799403,5cyclictest25-21ksoftirqd/121:40:001
1997994028,2cyclictest25-21ksoftirqd/122:25:211
199799402,4cyclictest25-21ksoftirqd/119:40:241
1997994023,6cyclictest25-21ksoftirqd/123:50:001
199799401,2cyclictest121rcu_preempt00:15:011
1997994011,2cyclictest121rcu_preempt19:50:001
1996994021,10cyclictest9-21ksoftirqd/000:10:230
200099392,4cyclictest41-21ksoftirqd/321:25:133
1999993935,3cyclictest33-21ksoftirqd/222:45:002
1999993932,4cyclictest33-21ksoftirqd/220:20:002
1999993926,11cyclictest33-21ksoftirqd/200:00:002
1999993926,11cyclictest33-21ksoftirqd/200:00:002
1999993925,11cyclictest33-21ksoftirqd/200:20:202
1999993921,7cyclictest33-21ksoftirqd/220:44:592
1999993921,10cyclictest33-21ksoftirqd/219:15:192
1999993921,10cyclictest33-21ksoftirqd/219:15:192
199999391,5cyclictest14036-21latency_hist00:05:002
1999993912,20cyclictest33-21ksoftirqd/200:35:002
199999390,4cyclictest31857-21latency_hist23:35:002
199799397,3cyclictest25-21ksoftirqd/122:20:241
1997993934,3cyclictest25-21ksoftirqd/120:10:011
1997993934,2cyclictest25-21ksoftirqd/121:15:241
199799391,2cyclictest25-21ksoftirqd/120:54:591
199699398,8cyclictest9-21ksoftirqd/019:20:240
199699394,3cyclictest12398-21taskset22:52:280
1996993933,3cyclictest9-21ksoftirqd/000:40:000
2000993833,3cyclictest41-21ksoftirqd/320:10:173
1999993828,9cyclictest33-21ksoftirqd/219:25:242
1999993819,9cyclictest33-21ksoftirqd/222:45:182
199999381,8cyclictest0-21swapper/220:23:222
199999381,7cyclictest0-21swapper/219:24:252
1997993833,3cyclictest25-21ksoftirqd/123:25:001
1997993833,3cyclictest25-21ksoftirqd/122:50:181
1997993833,3cyclictest25-21ksoftirqd/122:45:001
1997993833,3cyclictest25-21ksoftirqd/119:25:171
1997993833,2cyclictest25-21ksoftirqd/120:30:161
1997993832,3cyclictest25-21ksoftirqd/123:00:001
1997993832,3cyclictest25-21ksoftirqd/121:15:001
1997993832,3cyclictest25-21ksoftirqd/120:20:001
1997993831,4cyclictest25-21ksoftirqd/123:05:011
1997993819,3cyclictest25-21ksoftirqd/123:30:271
199799381,3cyclictest121rcu_preempt00:40:001
199799380,2cyclictest121rcu_preempt20:00:011
199799380,2cyclictest121rcu_preempt00:25:241
199699388,3cyclictest9-21ksoftirqd/021:55:270
199699383,3cyclictest121rcu_preempt21:55:010
1996993833,3cyclictest9-21ksoftirqd/023:05:000
1996993833,3cyclictest9-21ksoftirqd/020:20:000
199699383,2cyclictest121rcu_preempt19:35:190
1996993824,4cyclictest9-21ksoftirqd/021:00:280
1996993822,10cyclictest9-21ksoftirqd/021:30:400
1996993821,7cyclictest9-21ksoftirqd/000:25:150
199699381,6cyclictest121rcu_preempt21:21:540
2000993731,3cyclictest41-21ksoftirqd/320:00:183
1999993731,3cyclictest33-21ksoftirqd/221:45:002
1999993717,9cyclictest33-21ksoftirqd/223:10:212
199999370,4cyclictest14175-21tail22:55:252
199799373,4cyclictest25-21ksoftirqd/100:19:171
1997993733,3cyclictest25-21ksoftirqd/123:25:001
1997993733,2cyclictest25-21ksoftirqd/122:00:011
1997993732,3cyclictest25-21ksoftirqd/121:55:011
1997993732,3cyclictest25-21ksoftirqd/120:40:231
1997993731,3cyclictest25-21ksoftirqd/121:25:121
1997993730,3cyclictest25-21ksoftirqd/100:25:001
1997993725,3cyclictest25-21ksoftirqd/123:50:051
1997993717,5cyclictest25-21ksoftirqd/123:15:201
199799371,5cyclictest25-21ksoftirqd/123:39:581
1996993732,3cyclictest9-21ksoftirqd/021:20:000
1996993732,3cyclictest9-21ksoftirqd/020:00:000
1996993725,3cyclictest9-21ksoftirqd/021:43:150
1996993725,3cyclictest9-21ksoftirqd/021:27:310
1996993725,3cyclictest9-21ksoftirqd/020:51:440
1996993719,9cyclictest9-21ksoftirqd/021:40:000
199699371,3cyclictest0-21swapper/022:55:250
199699371,2cyclictest121rcu_preempt19:15:190
199699371,2cyclictest121rcu_preempt19:15:180
200099361,3cyclictest121rcu_preempt00:25:133
199999364,3cyclictest16610-21cut23:00:242
1999993630,3cyclictest33-21ksoftirqd/222:15:162
1999993630,3cyclictest33-21ksoftirqd/222:15:152
1999993625,9cyclictest33-21ksoftirqd/223:20:182
1999993625,9cyclictest33-21ksoftirqd/222:05:252
1999993620,4cyclictest33-21ksoftirqd/200:05:122
199999361,5cyclictest33-21ksoftirqd/222:14:572
1997993632,2cyclictest25-21ksoftirqd/120:50:001
1997993632,2cyclictest25-21ksoftirqd/120:00:121
1997993631,3cyclictest25-21ksoftirqd/123:59:591
1997993631,3cyclictest25-21ksoftirqd/122:05:141
1997993631,3cyclictest25-21ksoftirqd/122:05:011
1997993631,3cyclictest25-21ksoftirqd/121:00:011
1997993631,3cyclictest25-21ksoftirqd/119:39:591
1997993631,3cyclictest25-21ksoftirqd/119:35:001
1997993631,3cyclictest25-21ksoftirqd/100:00:001
1997993630,3cyclictest25-21ksoftirqd/122:35:161
199799361,8cyclictest25-21ksoftirqd/100:06:061
199799361,5cyclictest25-21ksoftirqd/100:31:051
199799360,3cyclictest121rcu_preempt23:10:141
199699363,3cyclictest28085-21taskset22:16:590
199699363,3cyclictest28085-21taskset22:16:590
1996993633,2cyclictest9-21ksoftirqd/020:49:590
1996993631,3cyclictest9-21ksoftirqd/023:25:010
1996993631,3cyclictest9-21ksoftirqd/021:15:000
1996993631,3cyclictest9-21ksoftirqd/019:50:100
1996993631,3cyclictest9-21ksoftirqd/000:30:220
1996993625,3cyclictest9-21ksoftirqd/020:20:440
1996993622,6cyclictest9-21ksoftirqd/020:14:590
1996993620,9cyclictest9-21ksoftirqd/020:35:010
199999354,3cyclictest8833-21sed21:35:262
199999351,3cyclictest0-21swapper/220:39:022
199999351,2cyclictest0-21swapper/221:59:292
1997993530,3cyclictest25-21ksoftirqd/123:10:011
1997993530,3cyclictest25-21ksoftirqd/122:50:001
1997993530,3cyclictest25-21ksoftirqd/120:35:191
1997993530,3cyclictest25-21ksoftirqd/100:05:001
1997993529,3cyclictest25-21ksoftirqd/121:30:221
1996993531,2cyclictest9-21ksoftirqd/023:35:260
1996993530,3cyclictest9-21ksoftirqd/020:05:190
1996993530,3cyclictest9-21ksoftirqd/020:00:170
1996993530,3cyclictest9-21ksoftirqd/000:15:160
1996993529,4cyclictest9-21ksoftirqd/022:08:440
1996993529,4cyclictest9-21ksoftirqd/021:08:070
1996993522,3cyclictest9-21ksoftirqd/023:43:580
1996993521,4cyclictest9-21ksoftirqd/020:25:250
199699351,7cyclictest0-21swapper/022:25:190
199699351,6cyclictest0-21swapper/022:40:170
199699351,3cyclictest121rcu_preempt22:45:180
199999344,3cyclictest33-21ksoftirqd/221:15:242
199999343,3cyclictest33-21ksoftirqd/219:55:152
1999993430,3cyclictest33-21ksoftirqd/221:45:562
1999993428,4cyclictest33-21ksoftirqd/222:38:072
1999993428,4cyclictest33-21ksoftirqd/222:25:392
1999993428,4cyclictest33-21ksoftirqd/221:32:322
1999993417,5cyclictest33-21ksoftirqd/221:30:012
199999341,6cyclictest121rcu_preempt22:32:422
199999341,3cyclictest18001-21cpuspeed_turbos20:50:132
199999341,2cyclictest0-21swapper/219:41:332
1999993411,3cyclictest33-21ksoftirqd/221:20:182
1997993430,2cyclictest25-21ksoftirqd/121:00:251
1997993429,3cyclictest25-21ksoftirqd/122:10:131
199699344,3cyclictest121rcu_preempt23:55:190
199699344,3cyclictest121rcu_preempt23:55:190
1996993430,2cyclictest9-21ksoftirqd/023:45:260
1996993430,2cyclictest9-21ksoftirqd/019:15:000
1996993429,3cyclictest9-21ksoftirqd/023:50:130
1996993429,3cyclictest9-21ksoftirqd/023:15:250
1996993429,3cyclictest9-21ksoftirqd/022:10:130
1996993429,3cyclictest9-21ksoftirqd/020:35:270
1996993421,3cyclictest9-21ksoftirqd/020:41:170
1999993328,3cyclictest33-21ksoftirqd/220:10:172
1999993327,4cyclictest33-21ksoftirqd/219:34:022
1999993327,4cyclictest33-21ksoftirqd/200:18:362
1999993327,3cyclictest33-21ksoftirqd/223:35:262
199999331,3cyclictest33-21ksoftirqd/223:50:272
199999330,4cyclictest2584-21fschecks_count23:40:152
199699333,5cyclictest121rcu_preempt19:25:170
1996993330,2cyclictest9-21ksoftirqd/022:35:180
1996993329,3cyclictest9-21ksoftirqd/022:05:000
1996993328,3cyclictest9-21ksoftirqd/023:05:140
1996993328,3cyclictest9-21ksoftirqd/022:30:120
1996993328,3cyclictest9-21ksoftirqd/019:45:230
1996993328,3cyclictest9-21ksoftirqd/019:40:120
1999993229,2cyclictest33-21ksoftirqd/221:10:002
1999993228,3cyclictest33-21ksoftirqd/223:06:312
199999322,3cyclictest29187-21df_abs00:35:132
1996993220,3cyclictest9-21ksoftirqd/000:01:560
1999993126,3cyclictest33-21ksoftirqd/220:05:272
1999993026,3cyclictest33-21ksoftirqd/220:55:272
1999993019,9cyclictest33-21ksoftirqd/200:25:132
1999993012,11cyclictest33-21ksoftirqd/219:45:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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