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2026-09-04 - 08:25
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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 rackdslot3.osadl.org (updated Fri Sep 04, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39172223158,21sleep00-21swapper/019:09:360
38592215181,23sleep20-21swapper/219:08:502
38902204169,23sleep30-21swapper/319:09:163
38832204172,21sleep10-21swapper/119:09:101
575521530,6sleep2424299cyclictest22:35:022
139391760,0ptp4l391rcuc/323:10:223
4243996329,7cyclictest41-21ksoftirqd/319:35:003
4243996128,8cyclictest41-21ksoftirqd/320:20:263
4243996121,10cyclictest41-21ksoftirqd/322:45:003
4243996027,4cyclictest41-21ksoftirqd/321:05:143
4243996025,4cyclictest41-21ksoftirqd/320:15:163
4243995825,4cyclictest41-21ksoftirqd/323:40:143
4243995824,5cyclictest41-21ksoftirqd/322:35:193
4243995821,4cyclictest41-21ksoftirqd/323:05:013
4243995820,9cyclictest41-21ksoftirqd/321:35:113
4243995730,5cyclictest41-21ksoftirqd/322:05:163
4243995720,4cyclictest41-21ksoftirqd/322:00:143
4243995624,7cyclictest41-21ksoftirqd/319:40:273
4243995623,4cyclictest41-21ksoftirqd/319:25:243
4243995522,4cyclictest41-21ksoftirqd/320:50:003
4243995521,9cyclictest41-21ksoftirqd/323:52:123
424399551,6cyclictest41-21ksoftirqd/322:15:193
4243995424,9cyclictest41-21ksoftirqd/300:36:113
4243995422,6cyclictest41-21ksoftirqd/321:30:283
4243995421,4cyclictest41-21ksoftirqd/320:35:183
4243995421,4cyclictest41-21ksoftirqd/320:30:143
4243995420,7cyclictest41-21ksoftirqd/300:00:243
4243995420,4cyclictest41-21ksoftirqd/300:05:163
4243995418,10cyclictest41-21ksoftirqd/300:25:233
394825437,9sleep30-21swapper/319:10:013
424399535,8cyclictest41-21ksoftirqd/322:55:123
424399532,7cyclictest41-21ksoftirqd/321:40:263
4243995324,7cyclictest41-21ksoftirqd/322:25:203
4243995324,7cyclictest41-21ksoftirqd/319:50:243
4243995323,7cyclictest41-21ksoftirqd/321:55:273
4243995323,7cyclictest41-21ksoftirqd/321:55:273
139391530,0ptp4l391rcuc/321:50:143
139391530,0ptp4l391rcuc/321:50:133
424399524,9cyclictest41-21ksoftirqd/319:45:153
424399524,8cyclictest41-21ksoftirqd/322:30:293
424399524,8cyclictest41-21ksoftirqd/320:25:293
424399523,10cyclictest41-21ksoftirqd/321:50:003
4243995224,8cyclictest41-21ksoftirqd/319:55:213
4243995221,12cyclictest41-21ksoftirqd/323:49:433
4243995122,4cyclictest41-21ksoftirqd/323:30:013
424399511,6cyclictest41-21ksoftirqd/321:20:253
4243995115,7cyclictest41-21ksoftirqd/322:45:013
424399510,6cyclictest41-21ksoftirqd/322:10:203
115662510,2sleep30-21swapper/323:55:143
66012500,2sleep00-21swapper/020:20:240
424399502,9cyclictest41-21ksoftirqd/322:50:293
424399502,6cyclictest41-21ksoftirqd/300:35:003
424399501,5cyclictest41-21ksoftirqd/320:10:013
424399501,5cyclictest41-21ksoftirqd/320:10:013
424399495,7cyclictest41-21ksoftirqd/321:00:013
424399493,6cyclictest41-21ksoftirqd/319:15:183
8822480,3sleep0885-21tr00:40:000
424399483,9cyclictest41-21ksoftirqd/323:35:203
424399482,9cyclictest41-21ksoftirqd/323:05:213
4243994819,4cyclictest41-21ksoftirqd/322:20:173
4243994819,3cyclictest41-21ksoftirqd/320:40:253
424399475,8cyclictest41-21ksoftirqd/320:00:143
424399475,10cyclictest41-21ksoftirqd/323:20:273
424399473,8cyclictest41-21ksoftirqd/300:20:233
424399472,4cyclictest41-21ksoftirqd/319:35:243
4243994719,4cyclictest41-21ksoftirqd/323:35:003
4243994718,4cyclictest41-21ksoftirqd/319:20:153
70862460,2sleep00-21swapper/022:35:250
424399465,8cyclictest41-21ksoftirqd/321:10:223
424399464,8cyclictest41-21ksoftirqd/323:15:153
4243994629,8cyclictest41-21ksoftirqd/321:00:183
424399462,5cyclictest41-21ksoftirqd/321:15:183
424399454,6cyclictest41-21ksoftirqd/320:12:353
424399452,6cyclictest41-21ksoftirqd/321:25:293
424399444,8cyclictest41-21ksoftirqd/320:50:193
57898420,8rtkit-daemon0-21swapper/100:32:381
4243994215,8cyclictest41-21ksoftirqd/300:16:543
4240994135,4cyclictest24512-21sh23:15:000
424099411,3cyclictest1317-21runrttasks19:42:180
4240994034,4cyclictest760-21wc22:25:140
424399391,7cyclictest41-21ksoftirqd/300:10:223
4242993935,2cyclictest33-21ksoftirqd/200:20:002
4242993934,3cyclictest33-21ksoftirqd/221:20:002
4242993833,3cyclictest33-21ksoftirqd/219:35:002
4241993834,2cyclictest25-21ksoftirqd/119:24:591
4241993832,4cyclictest25-21ksoftirqd/100:27:051
4241993831,5cyclictest25-21ksoftirqd/119:44:311
57898370,3rtkit-daemon22028-21apt-get20:55:110
4242993732,3cyclictest1652-21cron23:35:002
4242993631,3cyclictest33-21ksoftirqd/223:00:002
4242993631,3cyclictest33-21ksoftirqd/200:00:022
4242993631,2cyclictest33-21ksoftirqd/223:45:132
4242993630,4cyclictest33-21ksoftirqd/221:29:472
4241993631,3cyclictest25-21ksoftirqd/123:00:001
4241993631,3cyclictest25-21ksoftirqd/122:00:011
4241993631,3cyclictest25-21ksoftirqd/122:00:011
4241993630,4cyclictest25-21ksoftirqd/119:38:531
4241993630,4cyclictest25-21ksoftirqd/100:18:031
4242993530,3cyclictest33-21ksoftirqd/222:45:102
4242993530,3cyclictest33-21ksoftirqd/221:40:002
4242993530,3cyclictest33-21ksoftirqd/219:25:192
4242993530,3cyclictest33-21ksoftirqd/200:30:142
4242993529,4cyclictest33-21ksoftirqd/223:05:592
4242993529,4cyclictest33-21ksoftirqd/221:51:052
4242993529,4cyclictest33-21ksoftirqd/221:51:052
4242993529,4cyclictest33-21ksoftirqd/221:47:442
4241993530,3cyclictest25-21ksoftirqd/122:51:011
4241993530,3cyclictest25-21ksoftirqd/122:40:201
4241993530,3cyclictest25-21ksoftirqd/120:30:091
4241993529,4cyclictest25-21ksoftirqd/123:12:281
4241993529,4cyclictest25-21ksoftirqd/122:23:371
4241993529,4cyclictest25-21ksoftirqd/119:31:591
4241993529,4cyclictest25-21ksoftirqd/100:04:151
4241993528,4cyclictest25-21ksoftirqd/122:26:581
4240993529,4cyclictest9-21ksoftirqd/019:24:530
4240993528,5cyclictest9-21ksoftirqd/021:45:450
424099350,3cyclictest10040-21seq22:41:580
4242993430,3cyclictest33-21ksoftirqd/200:15:002
4242993429,3cyclictest33-21ksoftirqd/220:15:182
4242993429,3cyclictest33-21ksoftirqd/200:05:202
4242993428,4cyclictest33-21ksoftirqd/219:35:342
4242993427,5cyclictest33-21ksoftirqd/220:59:062
4242993423,9cyclictest33-21ksoftirqd/223:50:282
4241993429,3cyclictest25-21ksoftirqd/123:59:051
4241993429,3cyclictest25-21ksoftirqd/123:37:231
4241993429,3cyclictest25-21ksoftirqd/123:20:201
4241993428,4cyclictest25-21ksoftirqd/122:03:281
4241993428,4cyclictest25-21ksoftirqd/121:48:071
4241993428,4cyclictest25-21ksoftirqd/121:43:291
4241993428,4cyclictest25-21ksoftirqd/119:48:241
4241993428,4cyclictest25-21ksoftirqd/119:26:011
4240993428,4cyclictest9-21ksoftirqd/023:20:110
4240993428,4cyclictest9-21ksoftirqd/020:31:310
4242993329,3cyclictest33-21ksoftirqd/220:36:102
4242993328,3cyclictest33-21ksoftirqd/220:00:182
4242993328,3cyclictest33-21ksoftirqd/200:25:472
4242993327,4cyclictest33-21ksoftirqd/223:40:492
4242993327,4cyclictest33-21ksoftirqd/223:22:312
4242993327,4cyclictest33-21ksoftirqd/222:43:402
4242993327,4cyclictest33-21ksoftirqd/222:28:372
4242993327,4cyclictest33-21ksoftirqd/222:17:532
4242993327,4cyclictest33-21ksoftirqd/221:31:242
4242993327,4cyclictest33-21ksoftirqd/219:23:192
4241993327,4cyclictest25-21ksoftirqd/123:30:371
4241993327,4cyclictest25-21ksoftirqd/120:25:481
4241993327,4cyclictest25-21ksoftirqd/120:17:371
4241993327,4cyclictest25-21ksoftirqd/119:54:311
4241993326,5cyclictest25-21ksoftirqd/123:16:141
4240993328,3cyclictest9-21ksoftirqd/023:27:510
4240993327,4cyclictest9-21ksoftirqd/019:29:380
4240993327,3cyclictest9-21ksoftirqd/000:30:050
4240993327,3cyclictest9-21ksoftirqd/000:06:260
4242993227,3cyclictest33-21ksoftirqd/221:11:112
4242993227,3cyclictest33-21ksoftirqd/200:35:142
4242993226,4cyclictest33-21ksoftirqd/222:03:562
4242993226,4cyclictest33-21ksoftirqd/221:21:482
4242993226,4cyclictest33-21ksoftirqd/219:17:532
4241993227,3cyclictest9463-21kworker/1:022:15:211
4241993227,3cyclictest25-21ksoftirqd/122:33:201
4241993226,4cyclictest25-21ksoftirqd/123:08:191
4241993226,4cyclictest25-21ksoftirqd/122:12:021
4241993226,4cyclictest25-21ksoftirqd/120:21:511
4241993226,4cyclictest25-21ksoftirqd/120:00:451
4240993227,3cyclictest9-21ksoftirqd/023:02:030
4240993227,3cyclictest9-21ksoftirqd/021:55:130
4240993227,3cyclictest9-21ksoftirqd/021:55:130
4240993227,3cyclictest9-21ksoftirqd/021:50:270
4240993227,3cyclictest9-21ksoftirqd/021:50:270
4240993226,4cyclictest9-21ksoftirqd/022:34:120
4240993226,4cyclictest9-21ksoftirqd/021:38:480
4240993226,4cyclictest9-21ksoftirqd/021:31:020
4240993226,4cyclictest9-21ksoftirqd/021:20:120
4240993226,4cyclictest9-21ksoftirqd/021:10:430
4240993214,15cyclictest27476-21threads22:10:280
4240993214,15cyclictest20288-21expr23:05:120
4242993127,2cyclictest33-21ksoftirqd/222:09:412
4242993126,3cyclictest33-21ksoftirqd/223:25:412
4242993126,3cyclictest33-21ksoftirqd/223:05:002
4242993126,3cyclictest33-21ksoftirqd/220:40:082
4242993126,3cyclictest33-21ksoftirqd/220:10:122
4242993126,3cyclictest33-21ksoftirqd/219:13:512
4242993125,4cyclictest33-21ksoftirqd/220:50:072
4242993125,4cyclictest33-21ksoftirqd/200:22:532
4241993126,3cyclictest25-21ksoftirqd/122:07:271
4241993126,3cyclictest25-21ksoftirqd/100:20:391
4241993125,4cyclictest25-21ksoftirqd/122:46:041
4241993125,4cyclictest25-21ksoftirqd/121:07:081
4241993125,4cyclictest25-21ksoftirqd/120:41:271
4241993125,4cyclictest25-21ksoftirqd/120:11:281
4241993125,3cyclictest4508-21cpuspeed_turbos23:40:141
424099319,19cyclictest6483-21latency_hist23:45:000
424099318,20cyclictest24401-21sed22:05:210
424099318,20cyclictest14159-21df_abs00:00:140
4240993125,4cyclictest9-21ksoftirqd/022:02:380
4240993125,4cyclictest9-21ksoftirqd/019:13:370
424099310,2cyclictest13892-21grep22:50:240
4242993026,3cyclictest33-21ksoftirqd/220:05:202
4242993026,3cyclictest33-21ksoftirqd/220:05:202
4242993025,3cyclictest33-21ksoftirqd/222:50:232
4242993025,3cyclictest33-21ksoftirqd/222:24:392
4242993025,3cyclictest33-21ksoftirqd/219:50:402
4242993024,4cyclictest33-21ksoftirqd/219:42:362
4242993019,9cyclictest33-21ksoftirqd/220:30:122
4242993019,9cyclictest33-21ksoftirqd/200:00:212
4241993025,3cyclictest25-21ksoftirqd/121:25:211
4241993025,3cyclictest25-21ksoftirqd/120:36:131
4241993025,3cyclictest25-21ksoftirqd/119:56:421
4241993024,4cyclictest25-21ksoftirqd/121:16:011
4241993024,4cyclictest25-21ksoftirqd/120:48:211
424099307,20cyclictest25940-21ptp4l-jitter21:00:250
4240993025,3cyclictest9-21ksoftirqd/022:17:580
4240993025,3cyclictest9-21ksoftirqd/021:42:570
4240993024,4cyclictest9-21ksoftirqd/022:58:020
4240993024,4cyclictest9-21ksoftirqd/000:23:590
4240993024,3cyclictest9-21ksoftirqd/021:08:380
4240993014,14cyclictest18496-21phc2sys-jitter20:45:230
4240993012,15cyclictest22142-21sed00:15:190
424099300,3cyclictest1896-21/usr/sbin/munin20:10:240
4242992925,3cyclictest33-21ksoftirqd/223:15:002
4242992924,3cyclictest33-21ksoftirqd/221:40:162
4242992924,3cyclictest33-21ksoftirqd/221:05:182
4242992924,3cyclictest33-21ksoftirqd/221:00:202
4242992924,3cyclictest33-21ksoftirqd/220:45:202
4242992924,3cyclictest33-21ksoftirqd/220:20:212
4242992923,4cyclictest33-21ksoftirqd/219:55:512
4242992923,4cyclictest33-21ksoftirqd/219:48:422
4241992924,3cyclictest25-21ksoftirqd/123:51:031
4241992924,3cyclictest25-21ksoftirqd/121:35:221
4241992924,3cyclictest25-21ksoftirqd/100:37:561
4241992923,4cyclictest25-21ksoftirqd/100:06:551
4241992922,4cyclictest25-21ksoftirqd/100:15:001
424099299,17cyclictest21670-21sshd20:53:420
424099298,18cyclictest8322-21timerwakeupswit23:45:260
4240992924,3cyclictest9-21ksoftirqd/023:34:360
4240992924,3cyclictest9-21ksoftirqd/019:16:030
4240992923,3cyclictest9-21ksoftirqd/023:15:020
4240992913,14cyclictest5378-21latency21:25:220
4242992823,3cyclictest33-21ksoftirqd/223:36:152
4241992825,2cyclictest25-21ksoftirqd/119:15:001
4241992823,3cyclictest25-21ksoftirqd/123:46:501
4241992823,3cyclictest25-21ksoftirqd/123:03:531
4241992822,4cyclictest25-21ksoftirqd/121:31:301
4241992822,3cyclictest25-21ksoftirqd/123:25:021
4241992821,4cyclictest25-21ksoftirqd/120:55:031
4240992824,3cyclictest9-21ksoftirqd/000:25:120
4240992823,3cyclictest9-21ksoftirqd/023:55:320
4240992823,3cyclictest9-21ksoftirqd/022:20:120
4240992822,4cyclictest9-21ksoftirqd/019:48:040
4240992810,15cyclictest14678-21latency_hist20:40:010
424099280,4cyclictest26541-21irqstats19:55:200
424099280,3cyclictest16774-21iostat19:35:170
424099280,3cyclictest14203-21fschecks_count19:30:170
4241992723,3cyclictest25-21ksoftirqd/120:05:231
4241992723,3cyclictest25-21ksoftirqd/120:05:231
4241992722,3cyclictest25-21ksoftirqd/122:35:161
4241992721,4cyclictest25-21ksoftirqd/121:15:001
424199270,25cyclictest18419-21sleep21:55:011
424199270,25cyclictest18419-21sleep21:55:001
424099277,18cyclictest32408-21fschecks_count21:15:150
424099276,19cyclictest12741-21sed22:50:000
424099276,18cyclictest4437-21timerwakeupswit20:15:260
4240992722,3cyclictest9-21ksoftirqd/023:52:420
4240992721,4cyclictest9-21ksoftirqd/020:09:090
4240992721,4cyclictest9-21ksoftirqd/020:09:090
4240992721,4cyclictest9-21ksoftirqd/019:53:040
4240992711,14cyclictest19055-21expr00:10:130
424099270,4cyclictest2292-21df_inode23:35:160
424099270,3cyclictest28589-21if_enp4s020:00:160
424099270,3cyclictest15951-21memory20:40:210
4242992621,3cyclictest33-21ksoftirqd/223:17:362
4242992621,3cyclictest33-21ksoftirqd/222:33:362
4242992621,3cyclictest33-21ksoftirqd/221:58:312
4242992621,3cyclictest33-21ksoftirqd/221:58:312
4241992622,2cyclictest25-21ksoftirqd/119:15:251
4241992621,3cyclictest25-21ksoftirqd/120:50:181
4241992519,4cyclictest25-21ksoftirqd/121:02:061
4242992418,4cyclictest33-21ksoftirqd/220:25:192
4241992419,3cyclictest25-21ksoftirqd/121:20:201
4240992418,4cyclictest9-21ksoftirqd/020:25:380
4242992217,3cyclictest33-21ksoftirqd/222:10:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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