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2026-09-03 - 06:45
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Thu Sep 03, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175882238172,23sleep10-21swapper/119:09:411
139591225163,50phc2sys0-21swapper/319:07:413
175742210176,22sleep20-21swapper/219:09:292
154852207172,23sleep00-21swapper/019:05:090
17906996527,3cyclictest9-21ksoftirqd/019:30:000
320232620,3sleep20-21swapper/223:00:202
1790899613,17cyclictest6964-21missed_timers23:15:182
17906996131,4cyclictest9-21ksoftirqd/000:15:280
1790899603,17cyclictest19724-21cut22:35:182
17906996018,4cyclictest9-21ksoftirqd/023:45:130
17906995924,5cyclictest9-21ksoftirqd/022:20:000
17906995924,4cyclictest9-21ksoftirqd/021:55:000
1790899584,12cyclictest16888-21appstreamcli20:15:012
1790899583,15cyclictest22822-21cpuspeed19:20:132
1790899583,15cyclictest11332-21irqrtprio23:25:202
1790899583,11cyclictest2096-21cat22:00:002
17906995831,7cyclictest9-21ksoftirqd/021:00:000
17906995824,5cyclictest9-21ksoftirqd/022:40:010
17906995818,8cyclictest9-21ksoftirqd/022:10:300
17906995818,8cyclictest9-21ksoftirqd/022:10:300
1790899574,19cyclictest15797-21/usr/sbin/munin23:35:162
1790899573,17cyclictest18776-21cut21:25:192
17906995730,7cyclictest9-21ksoftirqd/020:10:170
17906995725,4cyclictest9-21ksoftirqd/000:25:280
1790899564,12cyclictest2967-21sed22:00:192
17906995627,7cyclictest9-21ksoftirqd/020:35:000
17906995627,4cyclictest9-21ksoftirqd/022:40:150
17906995627,4cyclictest9-21ksoftirqd/022:30:210
17906995627,4cyclictest9-21ksoftirqd/021:05:260
17906995623,6cyclictest9-21ksoftirqd/021:45:160
17906995622,6cyclictest9-21ksoftirqd/020:05:190
17906995622,5cyclictest9-21ksoftirqd/020:20:000
17906995622,4cyclictest9-21ksoftirqd/000:30:190
17906995621,6cyclictest9-21ksoftirqd/019:45:300
17906995621,6cyclictest9-21ksoftirqd/019:10:130
17906995621,4cyclictest9-21ksoftirqd/023:25:000
1790899553,17cyclictest16403-21latency_hist22:30:002
1790899553,11cyclictest1186-21df_abs23:05:132
17906995526,7cyclictest9-21ksoftirqd/022:05:180
17906995526,3cyclictest9-21ksoftirqd/019:20:260
17906995524,4cyclictest9-21ksoftirqd/022:00:000
17906995522,6cyclictest9-21ksoftirqd/020:20:150
17906995522,5cyclictest9-21ksoftirqd/020:45:160
17906995522,5cyclictest9-21ksoftirqd/020:45:160
17906995520,6cyclictest9-21ksoftirqd/022:50:000
17906995520,5cyclictest9-21ksoftirqd/000:00:000
17906995520,5cyclictest9-21ksoftirqd/000:00:000
17906995519,8cyclictest9-21ksoftirqd/020:25:240
17906995519,6cyclictest9-21ksoftirqd/020:50:200
1790899546,10cyclictest6573-21sed19:50:262
17906995428,7cyclictest9-21ksoftirqd/019:45:020
17906995423,4cyclictest9-21ksoftirqd/021:00:220
17906995422,6cyclictest9-21ksoftirqd/023:00:170
17906995422,6cyclictest9-21ksoftirqd/019:35:160
17906995421,5cyclictest9-21ksoftirqd/022:55:000
17906995421,5cyclictest9-21ksoftirqd/000:20:100
17906995420,5cyclictest9-21ksoftirqd/000:10:150
17906995419,4cyclictest9-21ksoftirqd/023:10:040
17906995417,5cyclictest9-21ksoftirqd/019:55:000
17906995410,9cyclictest9-21ksoftirqd/022:25:140
1790899535,11cyclictest13158-21awk20:05:262
1790899534,7cyclictest11949-21cpu22:20:122
1790899533,7cyclictest25614-21perl19:25:152
17906995324,3cyclictest9-21ksoftirqd/019:55:270
17906995321,5cyclictest9-21ksoftirqd/023:40:150
17906995320,6cyclictest9-21ksoftirqd/019:30:190
17906995320,6cyclictest9-21ksoftirqd/000:35:280
17906995319,6cyclictest9-21ksoftirqd/023:15:220
17906995318,6cyclictest9-21ksoftirqd/022:50:150
1790899523,7cyclictest9656-21sshd21:05:232
17906995221,5cyclictest9-21ksoftirqd/023:25:230
17906995220,6cyclictest9-21ksoftirqd/021:40:170
17906995220,6cyclictest9-21ksoftirqd/019:20:000
17906995219,4cyclictest9-21ksoftirqd/023:05:190
17906995218,6cyclictest9-21ksoftirqd/000:00:220
17906995218,5cyclictest9-21ksoftirqd/021:35:200
17906995216,4cyclictest9-21ksoftirqd/021:10:140
17906995121,6cyclictest9-21ksoftirqd/022:00:210
17906995119,6cyclictest9-21ksoftirqd/021:20:010
17906995118,5cyclictest9-21ksoftirqd/020:00:160
17906995117,6cyclictest9-21ksoftirqd/023:50:130
17906995117,6cyclictest9-21ksoftirqd/020:40:140
17906995116,5cyclictest9-21ksoftirqd/021:20:150
17906995115,5cyclictest9-21ksoftirqd/023:35:170
144452510,4sleep233-21ksoftirqd/221:15:252
17906995019,6cyclictest9-21ksoftirqd/023:30:270
17906995019,5cyclictest9-21ksoftirqd/000:05:230
17906995018,6cyclictest9-21ksoftirqd/021:30:160
17906995018,5cyclictest9-21ksoftirqd/022:20:180
17906995017,8cyclictest9-21ksoftirqd/020:35:140
17906995016,5cyclictest9-21ksoftirqd/021:25:210
17906995011,5cyclictest9-21ksoftirqd/022:55:240
1790899492,14cyclictest3770-21ps19:45:252
1790899482,7cyclictest32509-21apt-get00:10:122
166292470,25sleep31790999cyclictest23:35:233
1790899463,7cyclictest21018-21ps19:15:172
1790899463,13cyclictest18831-21meminfo23:40:202
1790899452,7cyclictest1170-21apt-get20:50:112
1790899450,12cyclictest0-21swapper/223:55:362
1790899450,12cyclictest0-21swapper/223:55:362
1790999441,41cyclictest139852sleep300:37:533
1790899442,7cyclictest24838-21ls22:45:202
1790899441,7cyclictest7293-21apt-get00:25:132
17907994410,21cyclictest21201-21seq20:21:201
139291440,0ptp4l401ktimersoftd/322:10:263
139291440,0ptp4l401ktimersoftd/322:10:263
1790899423,7cyclictest17663-21meminfo22:30:192
1790899423,15cyclictest20226-21/usr/sbin/munin21:30:242
1790899422,8cyclictest11096-21ls20:00:262
17909994134,4cyclictest27229-21cron19:30:003
1790899414,7cyclictest5947-21meminfo00:20:172
1790899412,7cyclictest30944-21ls19:35:222
1790899412,7cyclictest28432-21ls21:45:192
1395914132,4phc2sys0-21swapper/319:10:023
139291410,0ptp4l401ktimersoftd/320:07:253
139291410,0ptp4l401ktimersoftd/319:49:553
1790899403,14cyclictest13541-21perl23:30:162
17909993932,5cyclictest41-21ksoftirqd/321:21:283
17907993932,4cyclictest25-21ksoftirqd/122:12:591
17907993932,4cyclictest25-21ksoftirqd/122:12:591
139291390,0ptp4l401ktimersoftd/323:55:223
139291390,0ptp4l401ktimersoftd/323:55:223
17909993833,3cyclictest41-21ksoftirqd/320:39:163
17909993832,4cyclictest41-21ksoftirqd/300:10:093
17909993831,5cyclictest41-21ksoftirqd/300:30:353
1790899382,7cyclictest22830-21ls20:25:192
1790899382,7cyclictest15430-21ls20:10:192
1790899381,7cyclictest30147-21ps20:40:242
1790899381,12cyclictest9662-21apt-get00:30:132
17907993832,4cyclictest25-21ksoftirqd/119:32:381
17909993731,4cyclictest41-21ksoftirqd/323:00:503
17909993731,4cyclictest41-21ksoftirqd/322:50:383
17909993731,4cyclictest41-21ksoftirqd/322:50:383
17909993731,4cyclictest41-21ksoftirqd/321:43:223
17909993730,4cyclictest41-21ksoftirqd/320:23:523
17909993715,19cyclictest23030-21timerwakeupswit22:40:273
1790899374,11cyclictest13539-21timerandwakeup00:35:272
17908993731,4cyclictest33-21ksoftirqd/223:51:072
17908993731,4cyclictest33-21ksoftirqd/222:12:342
17908993731,4cyclictest33-21ksoftirqd/222:12:342
17907993732,3cyclictest25-21ksoftirqd/123:50:341
17907993731,4cyclictest25-21ksoftirqd/120:29:161
17907993731,4cyclictest25-21ksoftirqd/100:02:371
17909993631,3cyclictest41-21ksoftirqd/323:45:113
17909993631,3cyclictest41-21ksoftirqd/323:27:053
17909993631,3cyclictest41-21ksoftirqd/319:42:193
17909993630,4cyclictest41-21ksoftirqd/322:03:283
17909993614,20cyclictest27550-21/usr/sbin/munin00:00:193
17908993630,4cyclictest33-21ksoftirqd/223:22:422
17908993630,4cyclictest33-21ksoftirqd/220:45:412
17908993630,4cyclictest33-21ksoftirqd/220:45:412
17908993630,4cyclictest33-21ksoftirqd/219:42:232
1790899362,15cyclictest1312-21snmpd22:57:402
17907993631,3cyclictest25-21ksoftirqd/123:16:481
17907993631,3cyclictest25-21ksoftirqd/119:40:001
17907993630,4cyclictest25-21ksoftirqd/123:23:581
17907993630,4cyclictest25-21ksoftirqd/121:17:261
17907993630,4cyclictest25-21ksoftirqd/119:19:131
17909993530,3cyclictest41-21ksoftirqd/323:55:003
17909993530,3cyclictest41-21ksoftirqd/320:58:223
17909993529,4cyclictest41-21ksoftirqd/323:10:043
17909993529,4cyclictest41-21ksoftirqd/321:57:143
17909993528,5cyclictest41-21ksoftirqd/300:17:113
17909993511,21cyclictest24922-21needreboot22:45:213
1790999350,32cyclictest30613-21awk20:40:273
17908993529,4cyclictest33-21ksoftirqd/222:18:112
17908993529,4cyclictest33-21ksoftirqd/221:42:582
17908993529,4cyclictest33-21ksoftirqd/219:30:132
1790899350,9cyclictest0-21swapper/223:10:242
17907993530,3cyclictest25-21ksoftirqd/123:45:111
17907993529,4cyclictest25-21ksoftirqd/122:56:501
17907993529,4cyclictest25-21ksoftirqd/122:22:281
17907993529,4cyclictest25-21ksoftirqd/122:05:551
17907993529,4cyclictest25-21ksoftirqd/121:10:081
17907993529,3cyclictest25-21ksoftirqd/119:21:261
17907993526,6cyclictest25-21ksoftirqd/119:30:001
17909993429,3cyclictest41-21ksoftirqd/319:39:103
17909993428,4cyclictest41-21ksoftirqd/323:31:103
17909993428,4cyclictest41-21ksoftirqd/322:39:463
17909993428,4cyclictest41-21ksoftirqd/319:30:313
17909993413,19cyclictest8296-21/usr/sbin/munin23:20:293
17909993413,19cyclictest31208-21/usr/sbin/munin20:45:183
17909993413,19cyclictest31208-21/usr/sbin/munin20:45:183
17909993412,19cyclictest5091-21ls19:50:133
17909993411,19cyclictest18313-21fschecks_count21:25:163
17909993410,22cyclictest1156-21/usr/sbin/munin20:50:153
17908993429,3cyclictest33-21ksoftirqd/221:24:442
17908993428,4cyclictest33-21ksoftirqd/220:31:442
17907993429,3cyclictest25-21ksoftirqd/123:04:001
17907993429,3cyclictest25-21ksoftirqd/121:56:121
17907993429,3cyclictest25-21ksoftirqd/119:58:251
17907993429,3cyclictest25-21ksoftirqd/100:11:591
17907993428,4cyclictest25-21ksoftirqd/123:07:371
17907993428,4cyclictest25-21ksoftirqd/122:41:571
17907993428,4cyclictest25-21ksoftirqd/121:06:261
17907993428,3cyclictest25-21ksoftirqd/122:00:111
17909993328,3cyclictest41-21ksoftirqd/322:20:033
17909993328,3cyclictest41-21ksoftirqd/321:15:473
17909993328,3cyclictest41-21ksoftirqd/319:19:423
17909993328,3cyclictest41-21ksoftirqd/300:27:393
17909993327,4cyclictest41-21ksoftirqd/321:38:093
17909993327,4cyclictest41-21ksoftirqd/320:14:213
17909993327,4cyclictest41-21ksoftirqd/319:56:193
17909993327,4cyclictest41-21ksoftirqd/319:22:493
17909993326,4cyclictest41-21ksoftirqd/321:35:003
17909993312,19cyclictest29559-21cat22:55:203
1790999330,4cyclictest6003-21apt-get21:00:133
1790899335,16cyclictest26196-21grep22:50:132
1790899335,16cyclictest26196-21grep22:50:132
17908993328,3cyclictest33-21ksoftirqd/200:05:032
17908993327,4cyclictest33-21ksoftirqd/220:22:222
17908993327,4cyclictest33-21ksoftirqd/219:58:062
17908993327,4cyclictest33-21ksoftirqd/200:03:102
17907993328,3cyclictest25-21ksoftirqd/123:59:111
17907993328,3cyclictest25-21ksoftirqd/123:59:111
17907993328,3cyclictest25-21ksoftirqd/123:35:321
17907993328,3cyclictest25-21ksoftirqd/123:33:291
17907993328,3cyclictest25-21ksoftirqd/122:27:371
17907993328,3cyclictest25-21ksoftirqd/122:16:181
17907993327,4cyclictest25-21ksoftirqd/122:46:191
17907993327,4cyclictest25-21ksoftirqd/121:48:221
17907993327,4cyclictest25-21ksoftirqd/121:29:301
17907993327,4cyclictest25-21ksoftirqd/100:32:581
1790999329,20cyclictest17032-21cpuspeed_turbos20:15:143
1790999329,20cyclictest10162-21cut22:15:173
17909993227,3cyclictest41-21ksoftirqd/321:13:233
17909993227,3cyclictest41-21ksoftirqd/300:09:533
17909993226,4cyclictest41-21ksoftirqd/320:31:133
17909993226,3cyclictest41-21ksoftirqd/323:40:113
1790999321,28cyclictest9478-21cat21:05:223
17909993212,18cyclictest23228-21ls20:25:233
1790899325,17cyclictest31012-21taskset21:50:272
17908993227,3cyclictest33-21ksoftirqd/222:44:312
17908993227,3cyclictest33-21ksoftirqd/221:11:122
17908993226,4cyclictest33-21ksoftirqd/220:58:402
17907993227,3cyclictest25-21ksoftirqd/100:27:241
17907993226,4cyclictest25-21ksoftirqd/120:39:581
17907993226,3cyclictest25-21ksoftirqd/119:45:141
17907993226,3cyclictest17571-21irqrtprio20:15:191
17907993218,12cyclictest25-21ksoftirqd/121:00:111
17907993210,18cyclictest25354-21df_abs21:40:141
17909993125,4cyclictest41-21ksoftirqd/322:27:193
1790999312,4cyclictest0-21swapper/320:00:123
1790999311,4cyclictest217-21systemd-journal21:54:373
1790999311,28cyclictest0-21swapper/300:20:143
17908993125,4cyclictest33-21ksoftirqd/223:48:062
17908993125,4cyclictest33-21ksoftirqd/221:38:452
17908993125,4cyclictest33-21ksoftirqd/219:13:462
17908993125,4cyclictest33-21ksoftirqd/200:18:192
17907993126,3cyclictest25-21ksoftirqd/123:11:081
17907993126,3cyclictest25-21ksoftirqd/119:10:441
17907993125,4cyclictest25-21ksoftirqd/120:30:271
17907993125,4cyclictest25-21ksoftirqd/120:06:291
17907993125,4cyclictest25-21ksoftirqd/100:06:581
17907993112,16cyclictest18506-21sed23:40:191
1790999309,18cyclictest3245-21cat23:10:003
1790999306,21cyclictest0-21swapper/321:50:003
17908993025,3cyclictest33-21ksoftirqd/220:38:362
1790899300,20cyclictest0-21swapper/221:00:132
1790799308,19cyclictest24945-21sed21:40:001
17907993025,3cyclictest25-21ksoftirqd/121:31:291
17907993025,3cyclictest25-21ksoftirqd/100:24:551
17907993024,4cyclictest25-21ksoftirqd/121:52:351
1790999297,3cyclictest6338-21fschecks_count23:15:133
1790999291,4cyclictest4973-21fschecks_count22:05:153
1790999291,4cyclictest17076-21fschecks_count22:30:153
1790799297,19cyclictest1022-21phc2sys-jitter19:40:221
1790799297,18cyclictest5906-21latency_hist21:00:001
1790799296,20cyclictest337-21dbus-daemon20:00:251
17907992924,3cyclictest25-21ksoftirqd/122:34:551
17907992923,4cyclictest25-21ksoftirqd/120:14:111
1790799290,4cyclictest12809-21turbostat23:30:011
17908992823,3cyclictest33-21ksoftirqd/222:08:292
1790799286,19cyclictest19536-21cut22:35:161
17907992823,3cyclictest25-21ksoftirqd/121:22:451
17907992823,3cyclictest25-21ksoftirqd/120:51:081
17907992823,3cyclictest25-21ksoftirqd/120:47:471
17907992823,3cyclictest25-21ksoftirqd/120:47:471
17907992823,3cyclictest25-21ksoftirqd/100:35:381
17907992822,4cyclictest25-21ksoftirqd/119:54:121
17907992822,4cyclictest25-21ksoftirqd/100:16:091
1790799270,3cyclictest29361-21hddtemp_smartct20:40:161
1790799250,4cyclictest27097-21irqrtprio22:50:181
1790799250,4cyclictest27097-21irqrtprio22:50:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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