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2026-06-26 - 04:05
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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 rackdslot4.osadl.org (updated Fri Jun 26, 2026 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
280662230202,18sleep20-21swapper/219:08:592
280662230202,18sleep20-21swapper/219:08:592
278442228161,23sleep00-21swapper/019:06:110
278442228161,23sleep00-21swapper/019:06:110
281242210174,24sleep30-21swapper/319:09:443
281242210174,24sleep30-21swapper/319:09:433
280652205171,23sleep10-21swapper/119:08:581
280652205171,23sleep10-21swapper/119:08:581
1938821530,1sleep20-21swapper/221:00:192
28439996426,7cyclictest33-21ksoftirqd/222:35:002
28439996329,7cyclictest33-21ksoftirqd/221:15:002
28439996327,7cyclictest33-21ksoftirqd/220:45:142
28439996326,6cyclictest33-21ksoftirqd/200:25:282
2844099627,28cyclictest3447-21cat22:40:003
28439996229,6cyclictest33-21ksoftirqd/222:50:232
28439996229,6cyclictest33-21ksoftirqd/222:50:232
28439996227,7cyclictest33-21ksoftirqd/219:55:132
28439996226,7cyclictest33-21ksoftirqd/221:05:152
208622620,2sleep20-21swapper/200:20:002
28439996129,7cyclictest33-21ksoftirqd/221:25:122
28439996126,7cyclictest33-21ksoftirqd/221:55:182
28439996126,6cyclictest33-21ksoftirqd/219:45:122
28439996125,6cyclictest33-21ksoftirqd/223:30:162
28439996124,6cyclictest33-21ksoftirqd/222:45:122
28437996116,5cyclictest9-21ksoftirqd/000:15:000
28439996031,6cyclictest33-21ksoftirqd/219:40:002
28439996029,4cyclictest33-21ksoftirqd/220:20:172
28439996029,4cyclictest33-21ksoftirqd/220:20:162
28439996027,7cyclictest33-21ksoftirqd/219:30:012
28439996026,8cyclictest33-21ksoftirqd/221:35:272
28439996026,6cyclictest33-21ksoftirqd/223:00:142
28439996026,6cyclictest33-21ksoftirqd/200:35:152
28439996025,7cyclictest33-21ksoftirqd/222:10:222
28439996023,7cyclictest33-21ksoftirqd/220:55:112
28439995928,6cyclictest33-21ksoftirqd/219:50:122
28439995928,6cyclictest33-21ksoftirqd/219:50:122
28439995927,7cyclictest33-21ksoftirqd/220:30:142
28439995925,6cyclictest33-21ksoftirqd/220:30:012
28439995925,6cyclictest33-21ksoftirqd/200:00:192
28437995924,6cyclictest9-21ksoftirqd/023:00:130
2844099586,10cyclictest30173-21chrt22:25:483
28439995828,6cyclictest33-21ksoftirqd/219:10:202
28439995827,6cyclictest33-21ksoftirqd/220:05:132
28439995826,6cyclictest33-21ksoftirqd/200:10:102
28439995826,5cyclictest33-21ksoftirqd/223:30:002
28439995825,9cyclictest33-21ksoftirqd/220:10:122
28439995824,7cyclictest33-21ksoftirqd/222:25:142
28439995824,4cyclictest33-21ksoftirqd/221:45:012
28439995824,11cyclictest33-21ksoftirqd/220:45:002
28439995824,10cyclictest33-21ksoftirqd/200:20:252
28437995819,6cyclictest9-21ksoftirqd/023:55:250
2844099578,11cyclictest2566-21awk19:20:203
2844099574,12cyclictest10815-21cat21:50:003
28439995725,5cyclictest33-21ksoftirqd/222:05:012
28439995724,10cyclictest33-21ksoftirqd/222:55:212
28439995722,4cyclictest33-21ksoftirqd/220:50:102
28437995724,4cyclictest9-21ksoftirqd/022:55:180
28437995720,4cyclictest9-21ksoftirqd/023:30:110
28437995714,6cyclictest9-21ksoftirqd/022:44:590
2844099568,11cyclictest5021-21awk19:25:213
2844099564,11cyclictest9342-21cut22:50:193
2844099564,11cyclictest9342-21cut22:50:193
28439995626,8cyclictest33-21ksoftirqd/220:00:182
28439995624,7cyclictest33-21ksoftirqd/222:25:012
28439995624,7cyclictest33-21ksoftirqd/222:25:012
28439995624,6cyclictest33-21ksoftirqd/221:30:142
28439995624,10cyclictest33-21ksoftirqd/223:20:262
28439995624,10cyclictest33-21ksoftirqd/223:20:262
28439995622,9cyclictest33-21ksoftirqd/223:40:132
28439995622,9cyclictest33-21ksoftirqd/223:35:222
28439995622,4cyclictest33-21ksoftirqd/223:50:112
28439995622,4cyclictest33-21ksoftirqd/223:50:112
28439995621,10cyclictest33-21ksoftirqd/220:35:272
28437995626,3cyclictest9-21ksoftirqd/021:45:160
2844099556,10cyclictest17061-21/usr/sbin/munin20:55:213
2844099552,17cyclictest28001-21latency_hist22:25:003
2844099552,17cyclictest28001-21latency_hist22:25:003
2843999554,8cyclictest33-21ksoftirqd/219:20:002
28439995524,5cyclictest33-21ksoftirqd/219:40:152
28437995517,6cyclictest9-21ksoftirqd/021:25:230
2844099544,11cyclictest7862-21awk21:40:263
2844099544,10cyclictest23886-21perl22:15:173
2844099543,11cyclictest6310-21hwlatdetect23:50:153
2844099543,11cyclictest6310-21hwlatdetect23:50:153
2844099543,11cyclictest20033-21sensors_temp19:55:233
2844099541,10cyclictest0-21swapper/322:10:243
28439995421,3cyclictest33-21ksoftirqd/221:15:242
2843999540,8cyclictest33-21ksoftirqd/223:15:142
28437995418,9cyclictest9-21ksoftirqd/022:15:150
2844099535,11cyclictest21924-21irqstats21:05:193
2844099534,8cyclictest19712-21phc2sys00:15:233
28439995326,6cyclictest33-21ksoftirqd/222:15:232
28439995325,5cyclictest33-21ksoftirqd/223:10:002
2843999530,13cyclictest33-21ksoftirqd/223:10:172
2844099527,11cyclictest24955-21awk00:25:263
2844099524,10cyclictest4650-21missed_timers20:30:213
2844099523,17cyclictest18455-21/usr/sbin/munin21:00:253
2843999525,7cyclictest33-21ksoftirqd/220:20:002
2843999518,3cyclictest33-21ksoftirqd/221:45:142
2843799515,7cyclictest0-21swapper/022:50:270
2843799515,7cyclictest0-21swapper/022:50:270
2844099502,16cyclictest32082-21open_files21:25:233
2843999503,8cyclictest33-21ksoftirqd/221:50:132
2843999503,8cyclictest33-21ksoftirqd/221:50:122
2843799503,5cyclictest9-21ksoftirqd/023:50:010
28437995019,6cyclictest9-21ksoftirqd/023:50:120
28437995019,6cyclictest9-21ksoftirqd/023:50:120
2843799501,6cyclictest9-21ksoftirqd/021:05:250
28437995014,4cyclictest9-21ksoftirqd/021:04:020
2844099495,9cyclictest477-21chrt22:34:313
2844099494,12cyclictest20729-21sed22:10:003
2844099494,10cyclictest9981-21cat20:40:243
2844099493,11cyclictest21927-21cat23:15:213
2844099492,16cyclictest0-21swapper/323:25:213
2843999495,10cyclictest33-21ksoftirqd/200:30:202
2843999494,6cyclictest33-21ksoftirqd/219:30:132
2843999493,8cyclictest33-21ksoftirqd/200:05:142
28439994922,8cyclictest33-21ksoftirqd/222:35:012
2843799494,6cyclictest9-21ksoftirqd/020:50:130
2843799492,5cyclictest9-21ksoftirqd/023:25:140
2843799492,5cyclictest9-21ksoftirqd/023:15:140
2844099486,17cyclictest23441-21chrt20:05:033
2844099484,11cyclictest0-21swapper/321:15:263
2844099482,16cyclictest0-21swapper/320:35:213
2843999483,7cyclictest33-21ksoftirqd/222:40:172
28439994826,8cyclictest33-21ksoftirqd/221:20:112
2843799486,6cyclictest9-21ksoftirqd/000:05:150
28437994818,5cyclictest9-21ksoftirqd/021:35:200
2843799481,7cyclictest9-21ksoftirqd/022:00:170
28437994816,8cyclictest9-21ksoftirqd/020:04:510
2844099474,18cyclictest10907-21turbostat19:44:553
2844099473,11cyclictest5063-21systemctl21:35:233
2844099473,10cyclictest1172-21sshd21:30:113
2844099470,11cyclictest31639-21irqrtprio23:35:183
2843999475,9cyclictest33-21ksoftirqd/223:55:122
2843999474,4cyclictest3742-21awk23:45:162
28439994727,9cyclictest33-21ksoftirqd/222:05:162
2843799475,5cyclictest9-21ksoftirqd/022:25:190
2843799475,4cyclictest9-21ksoftirqd/022:05:200
2843799473,6cyclictest9-21ksoftirqd/023:05:250
2843799473,5cyclictest9-21ksoftirqd/023:25:010
2843799473,5cyclictest9-21ksoftirqd/023:25:010
2843799473,5cyclictest9-21ksoftirqd/019:30:150
2844099465,11cyclictest16453-21fschecks_count22:00:153
2844099462,11cyclictest2598-21cat20:25:243
2843999460,5cyclictest33-21ksoftirqd/219:20:122
2843799465,7cyclictest9-21ksoftirqd/022:20:150
2843799465,7cyclictest9-21ksoftirqd/022:20:140
2843799465,7cyclictest9-21ksoftirqd/020:45:000
2843799464,4cyclictest28436-21cyclictest22:35:160
2843799463,5cyclictest9-21ksoftirqd/020:15:250
2843799462,5cyclictest9-21ksoftirqd/020:35:140
2843799462,5cyclictest9-21ksoftirqd/019:55:150
28437994620,3cyclictest9-21ksoftirqd/020:09:420
2843799460,6cyclictest9-21ksoftirqd/019:40:220
2844099455,16cyclictest2399-21ssh23:40:253
2844099453,9cyclictest12202-21ps20:45:233
2844099453,8cyclictest31129-21cstates20:20:123
2844099453,8cyclictest31129-21cstates20:20:123
2843799456,6cyclictest9-21ksoftirqd/020:45:160
2843799456,4cyclictest9-21ksoftirqd/022:10:120
2843799455,5cyclictest9-21ksoftirqd/019:25:010
2843799455,4cyclictest9-21ksoftirqd/021:10:180
2843799453,5cyclictest9-21ksoftirqd/000:10:140
2843799452,5cyclictest9-21ksoftirqd/021:30:130
28437994518,3cyclictest9-21ksoftirqd/021:16:210
2843799451,5cyclictest9-21ksoftirqd/000:20:140
2843799450,5cyclictest9-21ksoftirqd/022:30:140
2844099449,11cyclictest17922-21vmstat19:50:283
2844099449,11cyclictest17922-21vmstat19:50:273
2844099444,7cyclictest15843-21/usr/sbin/munin23:05:233
2844099444,10cyclictest28154-21turbostat20:19:543
2844099443,10cyclictest20903-21/usr/sbin/munin00:20:233
2843799446,7cyclictest9-21ksoftirqd/022:45:130
2843799444,7cyclictest9-21ksoftirqd/019:25:170
28437994441,2cyclictest111rcuc/023:35:120
2843799443,7cyclictest9-21ksoftirqd/023:15:000
2843799443,6cyclictest9-21ksoftirqd/019:20:010
2844099435,16cyclictest7949-21seq22:46:393
2844099434,9cyclictest6219-21/usr/sbin/munin19:30:233
2843799435,7cyclictest9-21ksoftirqd/023:40:240
2843799435,7cyclictest9-21ksoftirqd/020:55:140
2843799435,5cyclictest9-21ksoftirqd/019:50:240
2843799435,5cyclictest9-21ksoftirqd/019:50:240
2843799434,8cyclictest9-21ksoftirqd/019:35:220
2843799434,7cyclictest9-21ksoftirqd/019:10:450
2843799434,5cyclictest9-21ksoftirqd/019:45:100
2843799433,5cyclictest9-21ksoftirqd/021:50:260
2843799433,5cyclictest9-21ksoftirqd/021:50:260
2843799431,5cyclictest9-21ksoftirqd/021:55:260
2843799430,6cyclictest9-21ksoftirqd/021:42:040
2844099425,9cyclictest27885-21taskset20:12:003
2844099422,9cyclictest17343-21ls00:10:263
2843799426,7cyclictest9-21ksoftirqd/000:35:130
2843799426,6cyclictest9-21ksoftirqd/020:10:130
2843799423,8cyclictest9-21ksoftirqd/000:30:010
2843799422,5cyclictest9-21ksoftirqd/021:25:000
138491420,0ptp4l401ktimersoftd/322:40:113
138491420,0ptp4l401ktimersoftd/319:47:403
2844099415,8cyclictest15573-21taskset21:58:513
2844099415,7cyclictest12835-21users21:50:293
2844099415,7cyclictest12835-21users21:50:293
2844099414,14cyclictest29242-21iostat19:10:173
2844099412,8cyclictest29960-21ls21:20:253
2844099412,10cyclictest28276-21/usr/sbin/munin00:35:213
2843799416,7cyclictest9-21ksoftirqd/020:30:200
2843799413,7cyclictest9-21ksoftirqd/000:30:210
2843799413,3cyclictest9-21ksoftirqd/000:00:240
2843799410,6cyclictest9-21ksoftirqd/020:25:400
2844099405,9cyclictest30167-21chrt23:31:483
2844099403,8cyclictest12652-21ls22:55:283
2844099395,5cyclictest27416-21ssh00:30:273
28438993832,4cyclictest25-21ksoftirqd/123:26:431
28438993831,5cyclictest25-21ksoftirqd/121:18:311
28438993731,4cyclictest25-21ksoftirqd/123:06:211
2843799374,7cyclictest9-21ksoftirqd/020:20:130
2843799374,7cyclictest9-21ksoftirqd/020:20:130
2844099364,10cyclictest0-21swapper/323:24:203
2844099364,10cyclictest0-21swapper/323:24:203
2844099362,14cyclictest1319-21snmpd21:10:333
28438993630,4cyclictest25-21ksoftirqd/123:15:561
28438993630,4cyclictest25-21ksoftirqd/121:09:311
28438993630,4cyclictest25-21ksoftirqd/120:12:441
28438993630,4cyclictest25-21ksoftirqd/119:19:001
28438993530,4cyclictest25-21ksoftirqd/100:15:021
28438993530,3cyclictest25-21ksoftirqd/121:21:551
28438993530,3cyclictest25-21ksoftirqd/120:29:001
28438993529,4cyclictest25-21ksoftirqd/123:45:331
28438993529,4cyclictest25-21ksoftirqd/122:31:081
28438993529,4cyclictest25-21ksoftirqd/121:51:411
28438993529,4cyclictest25-21ksoftirqd/121:51:411
28438993529,4cyclictest25-21ksoftirqd/121:29:261
28438993529,4cyclictest25-21ksoftirqd/120:45:491
2844099345,11cyclictest660-21chrt19:18:503
2844099343,10cyclictest20176-21runrttasks23:10:423
28440993429,3cyclictest41-21ksoftirqd/319:37:123
28438993428,4cyclictest25-21ksoftirqd/122:11:181
28438993428,4cyclictest25-21ksoftirqd/121:38:281
28438993428,4cyclictest25-21ksoftirqd/119:58:561
28438993428,4cyclictest25-21ksoftirqd/119:10:331
2844099333,6cyclictest0-21swapper/323:45:253
2844099333,10cyclictest0-21swapper/320:51:403
28438993328,3cyclictest25-21ksoftirqd/123:41:121
28438993328,3cyclictest25-21ksoftirqd/121:58:531
28438993328,3cyclictest25-21ksoftirqd/121:46:431
28438993328,3cyclictest25-21ksoftirqd/121:00:111
28438993328,3cyclictest25-21ksoftirqd/120:53:431
28438993327,4cyclictest25-21ksoftirqd/123:50:471
28438993327,4cyclictest25-21ksoftirqd/123:50:461
28438993327,4cyclictest25-21ksoftirqd/123:10:111
28438993327,4cyclictest25-21ksoftirqd/123:01:281
28438993327,4cyclictest25-21ksoftirqd/122:41:191
28438993327,4cyclictest25-21ksoftirqd/121:10:191
28438993327,4cyclictest25-21ksoftirqd/120:55:441
28438993327,4cyclictest25-21ksoftirqd/120:19:091
2844099324,17cyclictest0-21swapper/300:00:223
28440993227,3cyclictest41-21ksoftirqd/300:05:453
28440993226,4cyclictest41-21ksoftirqd/323:00:103
28438993227,3cyclictest25-21ksoftirqd/122:24:031
28438993227,3cyclictest25-21ksoftirqd/122:24:021
28438993227,3cyclictest25-21ksoftirqd/119:47:511
28438993227,3cyclictest25-21ksoftirqd/119:35:131
28438993226,4cyclictest25-21ksoftirqd/123:24:151
28438993226,4cyclictest25-21ksoftirqd/123:24:151
28438993226,4cyclictest25-21ksoftirqd/122:56:301
28438993226,4cyclictest25-21ksoftirqd/122:37:021
28438993226,4cyclictest25-21ksoftirqd/122:28:341
28438993226,4cyclictest25-21ksoftirqd/100:05:351
2844099313,17cyclictest0-21swapper/323:55:143
28440993125,4cyclictest41-21ksoftirqd/320:03:073
28438993126,3cyclictest25-21ksoftirqd/122:08:551
28438993125,4cyclictest25-21ksoftirqd/123:30:091
28438993125,4cyclictest25-21ksoftirqd/120:23:191
28438993125,4cyclictest25-21ksoftirqd/120:23:191
28438993124,5cyclictest25-21ksoftirqd/119:32:111
2843899310,1cyclictest0-21swapper/120:06:541
28438993025,3cyclictest25-21ksoftirqd/122:49:271
28438993025,3cyclictest25-21ksoftirqd/120:35:281
28438993025,3cyclictest25-21ksoftirqd/100:00:001
28438993024,4cyclictest25-21ksoftirqd/123:39:081
28438992924,3cyclictest25-21ksoftirqd/122:04:461
28438992924,3cyclictest25-21ksoftirqd/100:22:071
28438992923,4cyclictest25-21ksoftirqd/121:43:411
28438992823,3cyclictest25-21ksoftirqd/100:37:091
28438992823,3cyclictest25-21ksoftirqd/100:27:291
28438992823,3cyclictest25-21ksoftirqd/100:00:121
28438992822,4cyclictest25-21ksoftirqd/121:31:071
28438992822,4cyclictest25-21ksoftirqd/120:33:261
28438992822,4cyclictest25-21ksoftirqd/120:01:161
28438992722,3cyclictest25-21ksoftirqd/120:43:091
28438992620,4cyclictest25-21ksoftirqd/119:23:411
28438992520,3cyclictest25-21ksoftirqd/119:40:091
28438992520,3cyclictest25-21ksoftirqd/100:33:041
28438992519,4cyclictest25-21ksoftirqd/122:16:361
28438992419,3cyclictest25-21ksoftirqd/122:50:111
28438992419,3cyclictest25-21ksoftirqd/122:50:111
28438992419,3cyclictest25-21ksoftirqd/100:14:541
28438992418,3cyclictest25-21ksoftirqd/119:53:111
28438992418,3cyclictest25-21ksoftirqd/119:53:101
28438992115,4cyclictest25-21ksoftirqd/119:26:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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