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2026-03-29 - 18:38
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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 Sun Mar 29, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165432205172,22sleep10-21swapper/107:07:191
138591204170,22phc2sys0-21swapper/307:07:533
167112201167,22sleep00-21swapper/007:09:230
167182200168,21sleep20-21swapper/207:09:292
1832121690,7sleep21725199cyclictest12:35:172
17250996630,7cyclictest25-21ksoftirqd/112:20:171
17250996530,5cyclictest25-21ksoftirqd/109:55:201
17250996527,4cyclictest25-21ksoftirqd/107:25:001
17250996429,7cyclictest25-21ksoftirqd/110:05:201
17250996331,8cyclictest25-21ksoftirqd/107:45:281
17250996331,4cyclictest25-21ksoftirqd/108:55:001
17250996329,4cyclictest25-21ksoftirqd/110:20:231
17250996232,4cyclictest25-21ksoftirqd/107:10:231
17250996227,7cyclictest25-21ksoftirqd/110:15:211
17250996131,8cyclictest25-21ksoftirqd/109:15:171
17250996130,9cyclictest25-21ksoftirqd/108:20:181
17250996130,8cyclictest25-21ksoftirqd/110:35:171
17250996129,4cyclictest25-21ksoftirqd/107:55:191
17250996128,8cyclictest25-21ksoftirqd/107:15:121
17250996128,7cyclictest25-21ksoftirqd/111:20:221
17250996128,6cyclictest25-21ksoftirqd/111:25:131
17250996128,4cyclictest25-21ksoftirqd/111:05:201
17250996128,4cyclictest25-21ksoftirqd/109:05:131
17250996127,8cyclictest25-21ksoftirqd/110:15:001
17250996127,10cyclictest25-21ksoftirqd/109:10:241
17250996126,5cyclictest25-21ksoftirqd/108:05:211
1724999610,20cyclictest25938-21cat07:25:180
1724999610,18cyclictest13567-21cut08:05:190
17250996032,4cyclictest25-21ksoftirqd/109:30:171
17250996031,8cyclictest25-21ksoftirqd/112:35:141
17250996030,9cyclictest25-21ksoftirqd/111:35:271
17250996030,7cyclictest25-21ksoftirqd/109:35:161
17250996030,4cyclictest25-21ksoftirqd/108:30:141
17250996029,8cyclictest25-21ksoftirqd/111:45:241
17250996029,8cyclictest25-21ksoftirqd/108:50:001
17250996029,7cyclictest25-21ksoftirqd/107:50:121
17250996029,7cyclictest25-21ksoftirqd/107:50:121
17250996029,10cyclictest25-21ksoftirqd/110:45:231
17250996028,8cyclictest25-21ksoftirqd/109:50:141
17250996028,4cyclictest25-21ksoftirqd/108:35:151
17250996028,11cyclictest25-21ksoftirqd/112:10:161
17250996027,6cyclictest25-21ksoftirqd/109:40:151
17250996026,4cyclictest25-21ksoftirqd/108:10:121
17250996026,10cyclictest25-21ksoftirqd/110:55:161
17250996020,4cyclictest25-21ksoftirqd/109:25:221
1724999604,18cyclictest19012-21timerandwakeup11:30:280
1724999603,17cyclictest25986-21missed_timers10:40:220
311702590,3sleep30-21swapper/310:50:213
17250995931,7cyclictest25-21ksoftirqd/109:20:221
17250995930,9cyclictest25-21ksoftirqd/111:35:001
17250995930,4cyclictest25-21ksoftirqd/108:40:241
17250995929,9cyclictest25-21ksoftirqd/110:00:221
17250995929,8cyclictest25-21ksoftirqd/107:20:231
17250995929,4cyclictest25-21ksoftirqd/112:15:141
17250995928,8cyclictest25-21ksoftirqd/111:10:131
17250995928,7cyclictest25-21ksoftirqd/111:55:191
17250995928,11cyclictest25-21ksoftirqd/112:25:161
17250995928,10cyclictest25-21ksoftirqd/108:20:001
17250995923,7cyclictest25-21ksoftirqd/111:50:131
17250995922,4cyclictest25-21ksoftirqd/107:40:161
1724999591,20cyclictest29909-21apt-get08:40:010
1724999590,18cyclictest28967-21timerandwakeup07:30:260
25752580,1sleep02578-21sed07:45:000
1725299581,3cyclictest21756-21taskset11:36:003
17250995829,8cyclictest25-21ksoftirqd/109:45:271
17250995829,3cyclictest25-21ksoftirqd/111:40:201
17250995828,7cyclictest25-21ksoftirqd/110:25:141
17250995827,9cyclictest25-21ksoftirqd/110:30:131
17250995827,8cyclictest25-21ksoftirqd/110:40:141
17250995827,4cyclictest25-21ksoftirqd/112:05:151
17250995827,10cyclictest25-21ksoftirqd/111:15:191
17250995827,10cyclictest25-21ksoftirqd/108:00:231
17250995826,7cyclictest25-21ksoftirqd/107:30:191
17250995824,11cyclictest25-21ksoftirqd/108:25:141
17250995821,4cyclictest25-21ksoftirqd/107:35:181
1724999581,25cyclictest5225-21latency_hist08:55:000
1724999581,20cyclictest18876-21/usr/sbin/munin08:15:220
1724999581,17cyclictest26319-21cat09:35:230
1725299570,3cyclictest19559-21taskset10:28:223
17250995728,4cyclictest25-21ksoftirqd/111:00:141
17250995727,8cyclictest25-21ksoftirqd/110:50:141
17250995727,8cyclictest25-21ksoftirqd/108:55:241
17250995725,8cyclictest25-21ksoftirqd/112:30:251
17250995724,10cyclictest25-21ksoftirqd/109:00:151
1724999571,20cyclictest2605-21/usr/sbin/munin12:05:120
1724999570,20cyclictest6966-21/usr/sbin/munin10:00:250
1724999561,21cyclictest1435-21/usr/sbin/munin09:50:230
1724999561,20cyclictest3363-21/usr/sbin/munin07:45:190
1724999560,21cyclictest30702-21/usr/sbin/munin10:50:170
1725299550,3cyclictest17211-21taskset10:24:413
1724999550,21cyclictest13125-21/usr/sbin/munin12:25:160
1724999550,20cyclictest26619-21uptime11:45:280
1724999550,20cyclictest21410-21/usr/sbin/munin08:20:220
17250995422,9cyclictest25-21ksoftirqd/112:00:181
1724999541,19cyclictest31941-21sshd07:39:130
1724999540,27cyclictest22994-21/usr/sbin/munin08:25:140
1724999540,20cyclictest23254-21fschecks_time09:30:150
1724999540,17cyclictest32357-21latency_hist12:00:010
1724999531,20cyclictest29279-21apt-config11:52:370
1724999530,18cyclictest16613-21mailstats08:10:240
300012520,2sleep20-21swapper/209:45:012
1724999520,28cyclictest13319-21/usr/sbin/munin09:10:160
1724999509,18cyclictest3814-21missed_timers09:55:180
1724999500,16cyclictest30298-21cstates09:45:130
1725299480,2cyclictest243112sleep310:36:163
1724999480,18cyclictest20347-21awk11:35:160
154742480,1sleep30-21swapper/312:30:143
1724999440,20cyclictest6357-21/usr/sbin/munin07:50:200
1724999440,20cyclictest6357-21/usr/sbin/munin07:50:200
138491440,0ptp4l401ktimersoftd/312:25:163
138491440,0ptp4l401ktimersoftd/307:50:383
138491440,0ptp4l401ktimersoftd/307:50:383
138491430,0ptp4l401ktimersoftd/307:55:283
1725299411,3cyclictest14943-21/usr/sbin/munin11:25:293
1725299410,3cyclictest29537-21taskset09:41:153
138491410,0ptp4l401ktimersoftd/309:07:403
17251994034,3cyclictest33-21ksoftirqd/210:20:012
1725299391,3cyclictest29649-21chrt11:54:193
17251993933,3cyclictest33-21ksoftirqd/208:40:012
1724999396,23cyclictest1303-21runrttasks09:26:170
1724999390,17cyclictest0-21swapper/010:32:350
17252993833,3cyclictest41-21ksoftirqd/311:15:003
17252993818,18cyclictest41-21ksoftirqd/310:05:003
17251993833,3cyclictest33-21ksoftirqd/207:40:002
1724999380,16cyclictest1303-21runrttasks10:55:200
17252993731,4cyclictest41-21ksoftirqd/310:58:113
17252993731,4cyclictest41-21ksoftirqd/310:19:363
1725299370,3cyclictest29578-21taskset10:47:513
17251993733,3cyclictest33-21ksoftirqd/209:50:002
17251993732,3cyclictest33-21ksoftirqd/209:20:132
17251993731,4cyclictest33-21ksoftirqd/210:59:422
17251993731,4cyclictest33-21ksoftirqd/209:32:452
17249993730,4cyclictest9-21ksoftirqd/009:05:240
1724999370,17cyclictest1303-21runrttasks09:00:240
17252993631,3cyclictest41-21ksoftirqd/312:10:113
17252993630,4cyclictest41-21ksoftirqd/308:58:203
1725299360,3cyclictest31931-21taskset07:39:083
17251993631,3cyclictest33-21ksoftirqd/212:00:012
17251993631,3cyclictest33-21ksoftirqd/211:00:182
1724999368,15cyclictest8832-21phc2sys11:10:230
17249993631,3cyclictest9-21ksoftirqd/008:58:350
17249993630,4cyclictest9-21ksoftirqd/012:16:020
1724999361,23cyclictest0-21swapper/011:25:250
17252993529,4cyclictest41-21ksoftirqd/308:31:333
17251993531,2cyclictest33-21ksoftirqd/207:49:162
17251993530,3cyclictest33-21ksoftirqd/211:45:202
17251993530,3cyclictest33-21ksoftirqd/210:45:012
17251993530,3cyclictest33-21ksoftirqd/210:20:312
17251993530,3cyclictest33-21ksoftirqd/208:00:012
17251993529,4cyclictest33-21ksoftirqd/212:21:422
17251993529,4cyclictest33-21ksoftirqd/211:22:412
17251993529,4cyclictest33-21ksoftirqd/210:09:402
17251993529,4cyclictest33-21ksoftirqd/209:08:182
17251993529,4cyclictest33-21ksoftirqd/209:01:072
17251993529,4cyclictest33-21ksoftirqd/207:23:482
17249993528,4cyclictest9-21ksoftirqd/011:18:590
17252993429,3cyclictest9812-21sshd10:09:393
17252993428,4cyclictest41-21ksoftirqd/310:42:263
17252993428,4cyclictest41-21ksoftirqd/309:17:103
17252993428,4cyclictest41-21ksoftirqd/308:08:583
17252993428,4cyclictest41-21ksoftirqd/307:32:033
17252993428,4cyclictest41-21ksoftirqd/307:28:383
1725299341,2cyclictest0-21swapper/307:13:453
17251993430,3cyclictest33-21ksoftirqd/212:15:192
17251993429,3cyclictest33-21ksoftirqd/210:29:592
17251993429,3cyclictest33-21ksoftirqd/210:10:192
17251993429,3cyclictest33-21ksoftirqd/209:29:592
17251993429,3cyclictest33-21ksoftirqd/208:57:092
17251993429,3cyclictest33-21ksoftirqd/208:00:122
17251993428,4cyclictest33-21ksoftirqd/211:53:262
17251993428,4cyclictest33-21ksoftirqd/211:34:412
17251993428,3cyclictest18834-21kworker/2:208:05:142
17251993427,5cyclictest33-21ksoftirqd/207:42:582
17251993427,4cyclictest33-21ksoftirqd/212:10:122
17251993422,10cyclictest33-21ksoftirqd/212:00:252
1724999345,15cyclictest20128-21df_abs07:15:140
1724999340,21cyclictest8732-21cat07:55:210
17252993328,3cyclictest41-21ksoftirqd/311:49:493
17252993328,3cyclictest41-21ksoftirqd/309:50:033
17252993328,3cyclictest41-21ksoftirqd/308:48:253
17252993328,3cyclictest41-21ksoftirqd/308:19:313
17252993327,4cyclictest41-21ksoftirqd/309:55:333
17252993327,4cyclictest41-21ksoftirqd/308:00:123
17252993317,14cyclictest41-21ksoftirqd/309:15:003
1725299331,29cyclictest22189-21cat07:20:003
1725299330,3cyclictest5085-21taskset11:05:033
17251993328,3cyclictest33-21ksoftirqd/210:37:592
17251993328,3cyclictest33-21ksoftirqd/208:10:182
17251993327,4cyclictest33-21ksoftirqd/211:39:102
17251993327,4cyclictest33-21ksoftirqd/210:54:042
17251993327,4cyclictest33-21ksoftirqd/209:35:302
17251993327,4cyclictest33-21ksoftirqd/207:30:382
17251993327,3cyclictest33-21ksoftirqd/211:13:012
17251993327,3cyclictest33-21ksoftirqd/209:19:282
17251993323,9cyclictest33-21ksoftirqd/212:25:262
17249993327,4cyclictest9-21ksoftirqd/011:21:590
17249993327,4cyclictest9-21ksoftirqd/011:02:160
17249993327,4cyclictest9-21ksoftirqd/009:43:510
17249993327,4cyclictest9-21ksoftirqd/008:46:180
1724999331,19cyclictest19474-21chrt07:14:430
1724999330,17cyclictest0-21swapper/010:26:050
1725299328,21cyclictest223-21systemd-journal12:38:003
1725299327,22cyclictest24566-21idleruntime-cro11:45:003
17252993227,3cyclictest41-21ksoftirqd/312:04:233
17252993227,3cyclictest41-21ksoftirqd/311:18:163
17252993226,4cyclictest41-21ksoftirqd/309:39:243
17252993226,4cyclictest41-21ksoftirqd/308:39:073
1725299321,2cyclictest0-21swapper/312:05:123
17251993227,3cyclictest33-21ksoftirqd/212:05:182
17251993227,3cyclictest33-21ksoftirqd/208:55:002
17251993227,3cyclictest33-21ksoftirqd/208:28:472
17251993227,3cyclictest33-21ksoftirqd/208:20:182
17251993226,4cyclictest33-21ksoftirqd/209:50:352
17251993221,9cyclictest33-21ksoftirqd/208:18:352
17249993226,4cyclictest9-21ksoftirqd/011:05:500
17249993226,4cyclictest9-21ksoftirqd/008:38:200
17249993225,5cyclictest9-21ksoftirqd/012:22:130
17249993214,15cyclictest29134-21timedrift10:45:250
138491320,15ptp4l1725299cyclictest09:01:593
17252993126,3cyclictest41-21ksoftirqd/309:20:433
17252993125,4cyclictest41-21ksoftirqd/312:24:033
17252993125,4cyclictest41-21ksoftirqd/312:15:053
17252993125,4cyclictest41-21ksoftirqd/311:02:043
17252993125,4cyclictest41-21ksoftirqd/310:30:033
17252993125,4cyclictest41-21ksoftirqd/309:32:423
1725299311,27cyclictest1319-21snmpd10:12:303
1725299310,28cyclictest13493-21sed11:20:183
17251993127,3cyclictest33-21ksoftirqd/207:50:172
17251993127,3cyclictest33-21ksoftirqd/207:50:172
17251993127,2cyclictest33-21ksoftirqd/208:34:592
17251993126,3cyclictest33-21ksoftirqd/211:41:352
17251993126,3cyclictest33-21ksoftirqd/209:55:112
17251993126,3cyclictest33-21ksoftirqd/209:15:012
17251993126,3cyclictest33-21ksoftirqd/208:40:182
17251993125,4cyclictest33-21ksoftirqd/210:48:352
17251993125,4cyclictest33-21ksoftirqd/207:25:402
17251993125,4cyclictest33-21ksoftirqd/207:16:582
17251993120,9cyclictest33-21ksoftirqd/212:30:262
17249993125,4cyclictest9-21ksoftirqd/012:37:200
17249993125,4cyclictest9-21ksoftirqd/010:14:110
1724999310,17cyclictest0-21swapper/010:08:530
1724999310,16cyclictest740-21ps12:00:170
1725299307,20cyclictest223-21systemd-journal07:42:013
17252993025,3cyclictest41-21ksoftirqd/308:41:263
17252993025,3cyclictest41-21ksoftirqd/308:28:333
17252993024,4cyclictest41-21ksoftirqd/311:33:083
17252993024,4cyclictest41-21ksoftirqd/307:46:323
1725299302,25cyclictest15285-21cpuspeed_turbos08:10:133
1725299300,4cyclictest20234-21sort08:20:133
17251993026,3cyclictest33-21ksoftirqd/210:00:182
17251993024,4cyclictest33-21ksoftirqd/211:05:122
17249993024,4cyclictest9-21ksoftirqd/012:11:330
17249993024,4cyclictest9-21ksoftirqd/010:36:460
17249993024,4cyclictest9-21ksoftirqd/010:18:290
17252992924,3cyclictest41-21ksoftirqd/308:51:193
1725299290,2cyclictest0-21swapper/307:20:133
17251992923,4cyclictest33-21ksoftirqd/211:29:512
17251992918,9cyclictest33-21ksoftirqd/211:15:262
17251992917,9cyclictest33-21ksoftirqd/208:45:252
17249992924,3cyclictest9-21ksoftirqd/009:25:000
17249992924,3cyclictest9-21ksoftirqd/008:32:110
17249992914,13cyclictest22817-21hwlatdetect07:20:160
1725299282,21cyclictest30090-21apt-get09:45:133
1725299280,4cyclictest31794-21users11:55:283
17251992823,3cyclictest33-21ksoftirqd/210:30:482
17251992822,3cyclictest33-21ksoftirqd/207:10:072
17249992822,4cyclictest9-21ksoftirqd/012:33:440
1725299270,3cyclictest20598-21expr09:25:133
17249992721,4cyclictest9-21ksoftirqd/008:03:580
1724999270,17cyclictest15114-21cpuspeed10:20:120
1724999261,18cyclictest15301-21apt-get09:15:100
1724999251,18cyclictest22347-21apt-get11:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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