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2026-05-04 - 09:07
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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 Mon May 04, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18232206170,24sleep00-21swapper/019:08:460
138591204171,22phc2sys0-21swapper/319:05:033
18582201169,21sleep20-21swapper/219:09:132
16512201168,22sleep10-21swapper/119:06:371
1195921380,6sleep2222099cyclictest20:35:002
203442790,5sleep220345-21irqrtprio19:45:172
197722630,6sleep2222099cyclictest20:50:122
2218996225,5cyclictest9-21ksoftirqd/022:55:160
2218996222,6cyclictest9-21ksoftirqd/023:30:170
44042610,3sleep30-21swapper/320:20:013
2218996124,6cyclictest9-21ksoftirqd/021:20:250
2218996124,6cyclictest9-21ksoftirqd/020:20:220
2218996124,5cyclictest9-21ksoftirqd/021:30:160
2218996124,5cyclictest9-21ksoftirqd/019:35:240
2218996124,5cyclictest9-21ksoftirqd/000:05:220
2218996123,6cyclictest9-21ksoftirqd/020:25:260
2218996123,5cyclictest9-21ksoftirqd/021:45:140
2218996123,5cyclictest9-21ksoftirqd/020:05:240
2218996123,5cyclictest9-21ksoftirqd/019:20:130
2218996122,6cyclictest9-21ksoftirqd/019:30:130
2218996028,9cyclictest9-21ksoftirqd/000:00:240
2218996024,6cyclictest9-21ksoftirqd/021:10:230
2218996023,5cyclictest9-21ksoftirqd/022:45:230
2218996023,5cyclictest9-21ksoftirqd/020:55:150
2218996022,6cyclictest9-21ksoftirqd/022:40:170
2218996021,5cyclictest9-21ksoftirqd/020:50:150
111122600,5sleep111114-21rt-features19:25:241
2218995924,5cyclictest9-21ksoftirqd/022:05:160
2218995924,5cyclictest9-21ksoftirqd/019:45:210
2218995924,5cyclictest9-21ksoftirqd/000:35:280
2218995923,7cyclictest9-21ksoftirqd/022:20:190
2218995923,5cyclictest9-21ksoftirqd/022:50:230
2218995923,5cyclictest9-21ksoftirqd/022:15:120
2218995923,5cyclictest9-21ksoftirqd/021:55:240
2218995923,5cyclictest9-21ksoftirqd/020:00:140
2218995923,5cyclictest9-21ksoftirqd/019:15:280
2218995923,5cyclictest9-21ksoftirqd/000:25:250
2218995922,6cyclictest9-21ksoftirqd/021:00:200
2218995922,5cyclictest9-21ksoftirqd/023:20:150
2218995922,5cyclictest9-21ksoftirqd/022:35:250
2218995922,5cyclictest9-21ksoftirqd/020:40:180
2218995922,5cyclictest9-21ksoftirqd/020:30:210
2218995922,5cyclictest9-21ksoftirqd/020:10:250
2218995922,5cyclictest9-21ksoftirqd/019:50:220
2218995921,6cyclictest9-21ksoftirqd/023:25:130
2218995921,5cyclictest9-21ksoftirqd/023:15:230
247882580,5sleep224791-21cpuspeed_turbos21:00:112
222199584,15cyclictest14719-21latency_hist20:40:013
2218995827,11cyclictest9-21ksoftirqd/000:30:130
2218995823,5cyclictest9-21ksoftirqd/019:55:260
2218995823,5cyclictest9-21ksoftirqd/000:10:140
2218995822,6cyclictest9-21ksoftirqd/022:10:160
2218995822,6cyclictest9-21ksoftirqd/021:25:150
2218995822,5cyclictest9-21ksoftirqd/021:35:280
2218995821,5cyclictest9-21ksoftirqd/023:55:230
2218995816,7cyclictest9-21ksoftirqd/020:35:250
2218995725,5cyclictest9-21ksoftirqd/023:05:170
2218995724,5cyclictest9-21ksoftirqd/023:35:280
2218995722,8cyclictest9-21ksoftirqd/022:25:220
2218995722,5cyclictest9-21ksoftirqd/020:45:170
2218995721,5cyclictest9-21ksoftirqd/021:40:160
2218995720,5cyclictest9-21ksoftirqd/023:10:180
222199566,17cyclictest16232-21sed21:45:273
222199563,17cyclictest0-21swapper/300:05:203
2218995624,6cyclictest9-21ksoftirqd/023:40:260
2218995621,5cyclictest9-21ksoftirqd/000:15:150
2218995620,5cyclictest9-21ksoftirqd/023:00:150
222199555,11cyclictest32426-21sed23:25:173
222199555,10cyclictest11641-21sshd19:26:513
2218995523,9cyclictest9-21ksoftirqd/021:50:130
2218995523,4cyclictest9-21ksoftirqd/022:30:260
2218995520,5cyclictest9-21ksoftirqd/019:40:230
222199541,16cyclictest0-21swapper/320:00:183
2218995426,3cyclictest9-21ksoftirqd/023:52:460
2218995425,6cyclictest9-21ksoftirqd/021:15:130
2218995419,7cyclictest9-21ksoftirqd/019:25:240
2218995320,5cyclictest9-21ksoftirqd/023:45:010
222199524,9cyclictest7952-21irqrtprio21:30:193
138491520,1ptp4l391rcuc/320:20:433
222199514,16cyclictest6768-21/usr/sbin/munin22:35:273
222199512,16cyclictest0-21swapper/321:25:143
326052500,5sleep232609-21irqrtprio23:25:192
222199505,17cyclictest2232-21/usr/sbin/munin19:10:183
222199505,17cyclictest17251-21/usr/sbin/munin20:45:143
2218995024,4cyclictest9-21ksoftirqd/021:05:150
2218994920,6cyclictest9-21ksoftirqd/022:00:120
206502490,2sleep3391rcuc/319:45:193
221899481,6cyclictest9-21ksoftirqd/020:15:130
222199475,16cyclictest657-21sed21:15:183
222199474,16cyclictest14423-21latency_hist19:35:013
222199474,15cyclictest23092-21sed19:50:203
222199472,15cyclictest6052-21ls22:30:273
222199464,7cyclictest24277-21apt-get23:10:103
221899462,5cyclictest9-21ksoftirqd/019:10:160
221899461,5cyclictest9-21ksoftirqd/000:20:190
138491460,0ptp4l401ktimersoftd/322:40:113
222199455,8cyclictest27835-21meminfo23:15:213
222199453,8cyclictest21094-21ps20:50:243
222199452,7cyclictest15973-21grep23:55:253
138491450,0ptp4l401ktimersoftd/319:17:373
222199445,7cyclictest30374-21memory22:15:203
222199444,7cyclictest3267-21memory21:20:203
222199434,7cyclictest28002-21ls00:20:193
222199432,10cyclictest11880-21apt-get23:50:113
222199431,15cyclictest0-21swapper/323:45:153
222199424,8cyclictest17129-21apt-get19:40:123
222199424,14cyclictest31729-21/usr/sbin/munin22:20:193
222199424,10cyclictest23275-21memory20:55:203
2219994237,3cyclictest25-21ksoftirqd/123:00:001
222199414,8cyclictest29826-21diskstats00:25:143
222199413,17cyclictest9740-21munin-node21:10:103
222199412,7cyclictest11924-21apt-get22:45:133
2219994136,3cyclictest25-21ksoftirqd/122:55:001
2219994136,3cyclictest25-21ksoftirqd/119:40:011
138491410,0ptp4l401ktimersoftd/322:00:003
222199392,8cyclictest23149-21ls00:10:223
2219993935,2cyclictest420-21rs:main1
2219993935,2cyclictest25-21ksoftirqd/122:20:001
2219993934,3cyclictest25-21ksoftirqd/122:30:001
222199382,7cyclictest18463-21ls22:55:243
222199382,15cyclictest1319-21snmpd00:31:143
2219993834,3cyclictest25-21ksoftirqd/122:40:001
2219993833,3cyclictest25-21ksoftirqd/123:40:001
2219993833,3cyclictest25-21ksoftirqd/121:20:121
2220993730,4cyclictest33-21ksoftirqd/223:10:532
2219993733,3cyclictest25-21ksoftirqd/123:15:001
2219993733,3cyclictest25-21ksoftirqd/120:05:001
2219993733,2cyclictest25-21ksoftirqd/120:40:001
2219993732,3cyclictest25-21ksoftirqd/122:30:191
2219993732,3cyclictest25-21ksoftirqd/120:35:001
2219993732,3cyclictest25-21ksoftirqd/120:15:001
2219993732,3cyclictest25-21ksoftirqd/119:25:001
2219993730,4cyclictest25-21ksoftirqd/100:02:271
221999371,7cyclictest25-21ksoftirqd/119:20:001
221999370,2cyclictest121rcu_preempt20:20:181
2221993630,4cyclictest41-21ksoftirqd/323:37:223
2221993630,4cyclictest41-21ksoftirqd/323:07:253
222199362,14cyclictest24417-21/usr/sbin/munin00:15:223
2220993630,4cyclictest33-21ksoftirqd/220:14:112
2220993630,4cyclictest33-21ksoftirqd/219:57:102
221999365,2cyclictest25-21ksoftirqd/100:30:011
2219993632,3cyclictest25-21ksoftirqd/121:00:011
2219993631,3cyclictest25-21ksoftirqd/120:05:161
2219993631,2cyclictest25-21ksoftirqd/122:05:001
2219993630,4cyclictest25-21ksoftirqd/123:46:361
2219993630,4cyclictest25-21ksoftirqd/123:29:461
2219993630,3cyclictest25-21ksoftirqd/100:10:201
2219993629,5cyclictest25-21ksoftirqd/122:45:341
2219993629,5cyclictest25-21ksoftirqd/120:44:031
2219993629,4cyclictest25-21ksoftirqd/123:02:061
2219993629,4cyclictest25-21ksoftirqd/121:58:201
2221993529,4cyclictest41-21ksoftirqd/319:38:543
2220993530,3cyclictest33-21ksoftirqd/221:39:392
2220993530,3cyclictest33-21ksoftirqd/200:26:142
2220993530,3cyclictest14262-21cron21:45:002
2220993529,4cyclictest33-21ksoftirqd/222:42:252
2220993529,4cyclictest33-21ksoftirqd/221:27:522
2220993529,4cyclictest33-21ksoftirqd/220:04:072
2220993529,4cyclictest33-21ksoftirqd/219:12:492
2220993528,4cyclictest33-21ksoftirqd/200:17:332
221999357,3cyclictest25-21ksoftirqd/100:30:121
221999357,3cyclictest25-21ksoftirqd/100:05:141
221999354,3cyclictest25-21ksoftirqd/121:15:241
2219993531,3cyclictest25-21ksoftirqd/123:20:121
2219993530,3cyclictest25-21ksoftirqd/121:40:141
2219993530,3cyclictest25-21ksoftirqd/121:00:181
2219993530,3cyclictest25-21ksoftirqd/120:29:131
2219993529,4cyclictest25-21ksoftirqd/123:56:421
2219993529,4cyclictest25-21ksoftirqd/122:11:031
2219993529,4cyclictest25-21ksoftirqd/119:32:061
2219993529,4cyclictest25-21ksoftirqd/100:35:121
2219993528,4cyclictest25-21ksoftirqd/123:08:401
221999351,4cyclictest26735-21latency_hist20:00:011
2221993429,3cyclictest41-21ksoftirqd/323:30:443
2221993428,4cyclictest41-21ksoftirqd/322:52:543
2220993429,3cyclictest33-21ksoftirqd/219:17:542
2220993428,4cyclictest33-21ksoftirqd/221:45:412
2220993428,4cyclictest33-21ksoftirqd/220:19:362
2220993428,4cyclictest33-21ksoftirqd/219:41:242
2220993428,4cyclictest33-21ksoftirqd/219:38:432
2220993428,4cyclictest33-21ksoftirqd/219:20:102
2220993428,4cyclictest33-21ksoftirqd/200:39:472
2220993428,4cyclictest33-21ksoftirqd/200:02:042
2220993427,4cyclictest33-21ksoftirqd/223:20:082
221999345,3cyclictest25-21ksoftirqd/121:45:191
221999345,3cyclictest25-21ksoftirqd/119:50:131
221999345,2cyclictest25-21ksoftirqd/121:50:131
221999343,5cyclictest121rcu_preempt20:50:221
2219993430,2cyclictest25-21ksoftirqd/100:20:131
2219993429,3cyclictest25-21ksoftirqd/120:20:001
2219993428,4cyclictest25-21ksoftirqd/122:43:581
2219993428,4cyclictest25-21ksoftirqd/121:05:081
222199334,13cyclictest20084-21iostat23:00:173
2220993327,4cyclictest33-21ksoftirqd/223:51:052
2220993327,4cyclictest33-21ksoftirqd/223:04:562
2220993327,4cyclictest33-21ksoftirqd/222:28:182
2220993327,4cyclictest33-21ksoftirqd/222:01:132
2220993327,4cyclictest33-21ksoftirqd/221:20:012
2219993329,3cyclictest25-21ksoftirqd/123:40:271
2219993329,3cyclictest25-21ksoftirqd/121:35:201
2219993328,3cyclictest25-21ksoftirqd/120:45:141
2219993328,3cyclictest25-21ksoftirqd/119:45:131
2219993328,3cyclictest25-21ksoftirqd/119:15:001
2219993328,2cyclictest25-21ksoftirqd/123:50:131
2219993327,4cyclictest25-21ksoftirqd/100:20:001
222199323,12cyclictest7886-21ls23:40:243
2221993227,3cyclictest41-21ksoftirqd/321:43:343
2221993227,3cyclictest41-21ksoftirqd/321:00:093
2221993227,3cyclictest41-21ksoftirqd/320:32:103
2221993226,4cyclictest41-21ksoftirqd/323:22:103
2221993226,4cyclictest41-21ksoftirqd/300:35:513
2221993225,4cyclictest41-21ksoftirqd/322:27:223
222199322,12cyclictest31007-21ls20:05:223
2220993226,4cyclictest33-21ksoftirqd/222:55:372
2220993226,4cyclictest33-21ksoftirqd/220:26:102
2220993226,4cyclictest33-21ksoftirqd/200:33:382
2220993226,4cyclictest33-21ksoftirqd/200:09:592
2220993225,4cyclictest33-21ksoftirqd/200:12:312
221999324,3cyclictest25-21ksoftirqd/122:05:131
221999323,3cyclictest121rcu_preempt22:20:131
2219993226,3cyclictest25-21ksoftirqd/119:40:141
222199318,20cyclictest17026-21latency_hist20:45:013
2221993125,4cyclictest41-21ksoftirqd/322:09:163
2221993125,4cyclictest41-21ksoftirqd/319:56:063
2220993126,3cyclictest33-21ksoftirqd/222:37:102
2220993124,4cyclictest33-21ksoftirqd/222:46:102
2219993127,3cyclictest25-21ksoftirqd/123:15:191
2219993126,3cyclictest25-21ksoftirqd/121:30:131
2219993117,3cyclictest25-21ksoftirqd/121:10:101
2221993025,3cyclictest41-21ksoftirqd/321:35:173
2221993025,3cyclictest41-21ksoftirqd/319:20:103
2221993025,3cyclictest41-21ksoftirqd/300:00:113
2221993024,4cyclictest41-21ksoftirqd/321:53:373
2220993025,3cyclictest33-21ksoftirqd/221:22:102
2220993024,4cyclictest33-21ksoftirqd/223:44:432
2220993024,4cyclictest33-21ksoftirqd/223:07:402
2220993024,4cyclictest33-21ksoftirqd/221:57:362
2220993024,4cyclictest33-21ksoftirqd/221:54:582
2220993024,4cyclictest33-21ksoftirqd/221:32:412
2220993024,4cyclictest33-21ksoftirqd/220:21:452
2220993023,4cyclictest33-21ksoftirqd/220:06:082
221999305,3cyclictest25-21ksoftirqd/121:25:191
2221992923,4cyclictest41-21ksoftirqd/322:12:493
2220992924,3cyclictest33-21ksoftirqd/222:05:472
2220992924,3cyclictest19465-21cron20:50:002
2220992923,4cyclictest33-21ksoftirqd/223:46:442
2220992923,4cyclictest33-21ksoftirqd/220:37:172
2221992821,5cyclictest41-21ksoftirqd/320:15:003
2220992824,3cyclictest33-21ksoftirqd/222:52:302
2220992823,3cyclictest33-21ksoftirqd/222:20:502
2220992822,4cyclictest33-21ksoftirqd/221:12:002
2221992720,4cyclictest41-21ksoftirqd/320:27:553
2220992721,4cyclictest33-21ksoftirqd/223:15:162
222199263,8cyclictest28201-21ls21:05:213
2220992621,3cyclictest33-21ksoftirqd/221:08:402
2220992621,3cyclictest33-21ksoftirqd/220:42:102
2220992620,4cyclictest33-21ksoftirqd/200:20:342
2220992520,3cyclictest33-21ksoftirqd/223:35:132
2220992520,3cyclictest33-21ksoftirqd/222:11:502
222099250,23cyclictest0-21swapper/222:30:172
2220992419,3cyclictest33-21ksoftirqd/222:19:442
2220992419,3cyclictest33-21ksoftirqd/219:33:582
2220992419,3cyclictest33-21ksoftirqd/219:28:342
138491240,0ptp4l401ktimersoftd/322:00:223
2220992318,3cyclictest33-21ksoftirqd/223:58:032
2220992317,4cyclictest33-21ksoftirqd/219:54:442
2220992216,4cyclictest33-21ksoftirqd/220:57:382
2220991914,3cyclictest1857-21cut23:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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