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2026-03-28 - 17:48
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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 rackdslot2.osadl.org (updated Sat Mar 28, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591222155,22phc2sys0-21swapper/307:09:573
139591222155,22phc2sys0-21swapper/307:09:563
317692207159,37sleep20-21swapper/207:08:592
317692207159,37sleep20-21swapper/207:08:582
316042205171,22sleep10-21swapper/107:06:491
316042205171,22sleep10-21swapper/107:06:481
3018322050,6sleep00-21swapper/007:05:150
3018322050,6sleep00-21swapper/007:05:140
2750021610,7sleep13214599cyclictest10:20:281
32146996934,9cyclictest33-21ksoftirqd/212:30:002
32146996529,6cyclictest33-21ksoftirqd/208:05:262
3214499656,17cyclictest0-21swapper/011:25:240
32146996432,6cyclictest33-21ksoftirqd/209:20:192
32146996427,4cyclictest33-21ksoftirqd/210:50:232
3214499649,15cyclictest2313-21mailstats08:20:250
32146996330,10cyclictest33-21ksoftirqd/210:35:012
32146996326,4cyclictest33-21ksoftirqd/207:45:002
32146996323,5cyclictest33-21ksoftirqd/211:00:202
32146996231,10cyclictest33-21ksoftirqd/208:40:232
32146996229,9cyclictest33-21ksoftirqd/210:40:002
32146996229,4cyclictest33-21ksoftirqd/211:10:242
32146996228,8cyclictest33-21ksoftirqd/211:55:002
32146996130,3cyclictest33-21ksoftirqd/211:30:262
32146996129,9cyclictest33-21ksoftirqd/207:40:002
32146996128,4cyclictest33-21ksoftirqd/210:20:212
32146996128,10cyclictest33-21ksoftirqd/209:45:152
32146996126,7cyclictest33-21ksoftirqd/209:35:112
32146996123,6cyclictest33-21ksoftirqd/210:55:172
32146996123,5cyclictest33-21ksoftirqd/211:15:222
32144996110,17cyclictest27463-21ps08:05:230
32146996030,4cyclictest33-21ksoftirqd/207:45:122
32146996029,4cyclictest33-21ksoftirqd/212:20:242
32146996027,8cyclictest33-21ksoftirqd/210:45:162
32146996026,6cyclictest33-21ksoftirqd/207:50:172
32146996026,4cyclictest33-21ksoftirqd/208:30:142
32146996026,11cyclictest33-21ksoftirqd/209:07:162
32146996024,5cyclictest33-21ksoftirqd/211:20:242
32146996020,5cyclictest33-21ksoftirqd/209:50:182
32146996017,6cyclictest33-21ksoftirqd/210:25:142
3214499608,15cyclictest2462-21mailstats10:35:240
226292600,2sleep20-21swapper/207:55:232
32146995930,3cyclictest33-21ksoftirqd/212:35:252
32146995930,3cyclictest33-21ksoftirqd/212:35:252
32146995928,5cyclictest33-21ksoftirqd/208:45:272
32146995927,7cyclictest33-21ksoftirqd/212:30:242
32146995926,3cyclictest33-21ksoftirqd/212:00:162
32146995924,6cyclictest33-21ksoftirqd/212:10:132
32146995922,5cyclictest33-21ksoftirqd/209:15:142
32146995921,4cyclictest33-21ksoftirqd/210:00:142
32146995920,6cyclictest33-21ksoftirqd/208:35:152
32146995919,7cyclictest33-21ksoftirqd/209:10:262
3214499598,15cyclictest24249-21switchtime11:20:250
32146995830,4cyclictest33-21ksoftirqd/209:30:202
32146995828,7cyclictest33-21ksoftirqd/211:40:122
32146995822,5cyclictest33-21ksoftirqd/211:45:342
32146995821,5cyclictest33-21ksoftirqd/209:40:272
3214599587,23cyclictest14690-21seq08:45:401
3214499589,16cyclictest2521-21gnome-shell08:42:580
200482580,4sleep3401ktimersoftd/310:05:223
32146995729,4cyclictest33-21ksoftirqd/211:05:182
32146995727,9cyclictest33-21ksoftirqd/209:00:132
3214499579,15cyclictest22525-21awk10:10:250
32144995711,12cyclictest7620-21sed09:40:180
32146995630,7cyclictest33-21ksoftirqd/207:30:262
32146995624,3cyclictest33-21ksoftirqd/208:10:192
32146995622,4cyclictest33-21ksoftirqd/209:55:232
32146995620,5cyclictest33-21ksoftirqd/207:20:002
32146995619,7cyclictest33-21ksoftirqd/210:15:172
32146995619,6cyclictest33-21ksoftirqd/208:55:232
3214499569,10cyclictest26702-21cut10:20:210
3214499566,15cyclictest0-21swapper/012:30:240
3214499565,10cyclictest0-21swapper/009:20:260
32144995611,14cyclictest21416-21gdbus07:55:010
32144995610,15cyclictest19883-21date09:00:000
139291560,1ptp4l391rcuc/309:55:173
3214699559,3cyclictest33-21ksoftirqd/210:05:222
3214699555,3cyclictest33-21ksoftirqd/211:30:002
32146995524,4cyclictest33-21ksoftirqd/208:55:022
32146995517,5cyclictest33-21ksoftirqd/211:35:222
32144995510,7cyclictest30707-21if_enp4s011:35:170
32146995423,5cyclictest33-21ksoftirqd/208:20:202
32146995422,4cyclictest33-21ksoftirqd/212:15:152
32146995417,10cyclictest33-21ksoftirqd/207:25:172
326592530,3sleep032663-21irqrtprio09:25:150
32146995323,7cyclictest33-21ksoftirqd/211:55:212
32146995322,7cyclictest33-21ksoftirqd/209:25:192
32146995321,7cyclictest33-21ksoftirqd/207:20:172
32146995320,5cyclictest33-21ksoftirqd/210:40:162
32146995319,6cyclictest33-21ksoftirqd/208:15:242
3214499539,8cyclictest9448-21ps08:35:230
3214499539,16cyclictest3350-21/usr/sbin/munin08:25:100
3214499539,16cyclictest31832-21sed10:30:190
3214499535,16cyclictest0-21swapper/008:00:220
32144995210,8cyclictest20694-21irqrtprio09:00:190
34422510,4sleep33440-21sed10:40:003
3214699514,5cyclictest33-21ksoftirqd/207:10:182
32144995111,8cyclictest12910-21apt08:45:110
32144995111,7cyclictest17465-21iostat_ios12:15:200
32144995111,10cyclictest9753-21iostat_ios09:45:190
32144995110,9cyclictest16423-21/usr/sbin/munin10:00:110
32144995110,7cyclictest592-21hwlatdetect11:40:150
3214499509,7cyclictest28047-21apt-get10:25:020
3214499509,13cyclictest3442-21proc_pri07:15:220
32144995010,8cyclictest1956-21cpuspeed09:30:130
32144995010,8cyclictest16968-21rt-features11:05:240
32144995010,7cyclictest28938-21sensors_temp11:30:240
32144995010,7cyclictest13895-21sshd12:06:070
3214699497,7cyclictest33-21ksoftirqd/212:05:202
3214499499,8cyclictest15931-21ps08:50:200
3214499498,7cyclictest21569-21apt-get12:25:110
3214499495,16cyclictest0-21swapper/009:55:200
32144994911,8cyclictest4575-21df09:35:120
32144994911,7cyclictest19312-21hddtemp_smartct10:05:150
32144994911,12cyclictest27489-21df_abs09:15:160
32144994910,9cyclictest15377-21kernelversion12:10:180
32144994910,8cyclictest4108-21diskstats10:40:160
3214699483,8cyclictest33-21ksoftirqd/210:10:142
3214699483,5cyclictest33-21ksoftirqd/208:30:002
3214499489,7cyclictest3917-21mailstats11:45:320
32144994810,7cyclictest7536-21uptime08:30:290
32144994810,7cyclictest14789-21iostat07:40:170
32144994810,6cyclictest19736-21sshd12:20:180
139291480,0ptp4l401ktimersoftd/310:54:493
32146994716,5cyclictest33-21ksoftirqd/208:00:192
32144994610,7cyclictest10424-21memory07:30:230
3214499459,7cyclictest31327-21df_inode08:15:150
32144994510,17cyclictest11917-21cat12:05:000
32144994510,12cyclictest16892-21entropy07:45:120
32147994439,2cyclictest6465-21sh09:40:013
3214499449,6cyclictest27331-21meminfo12:35:210
3214499449,6cyclictest27331-21meminfo12:35:210
3214499439,13cyclictest23430-21meminfo09:05:200
139291430,0ptp4l401ktimersoftd/312:30:283
32147994136,3cyclictest41-21ksoftirqd/307:15:013
3214499417,7cyclictest7065-21irqstats10:45:190
139291410,0ptp4l401ktimersoftd/308:00:223
3214499407,6cyclictest13397-21ls07:35:250
139291400,0ptp4l401ktimersoftd/309:17:293
32147993935,2cyclictest41-21ksoftirqd/309:55:003
32147993933,4cyclictest41-21ksoftirqd/310:10:433
32147993933,4cyclictest41-21ksoftirqd/309:23:303
32147993933,3cyclictest41-21ksoftirqd/309:30:123
32147993833,3cyclictest41-21ksoftirqd/311:00:003
32147993832,4cyclictest41-21ksoftirqd/311:18:553
32147993832,4cyclictest41-21ksoftirqd/310:28:383
32147993831,4cyclictest41-21ksoftirqd/311:23:043
32145993832,4cyclictest25-21ksoftirqd/108:56:321
3214499389,8cyclictest7019-21apt-get07:25:130
32147993733,3cyclictest41-21ksoftirqd/312:25:013
32147993732,3cyclictest41-21ksoftirqd/312:13:153
32147993732,3cyclictest41-21ksoftirqd/308:07:373
32147993732,3cyclictest41-21ksoftirqd/307:20:263
32147993732,2cyclictest41-21ksoftirqd/308:45:133
32147993732,2cyclictest41-21ksoftirqd/307:45:103
32147993731,4cyclictest41-21ksoftirqd/311:38:013
32147993731,4cyclictest41-21ksoftirqd/309:11:383
32147993731,4cyclictest41-21ksoftirqd/308:23:363
32147993731,4cyclictest41-21ksoftirqd/307:58:063
32147993731,4cyclictest41-21ksoftirqd/307:26:443
32145993731,4cyclictest25-21ksoftirqd/111:37:511
32145993731,4cyclictest25-21ksoftirqd/109:13:291
32145993731,3cyclictest25-21ksoftirqd/110:25:051
3214499377,7cyclictest11974-21hddtemp_smartct09:50:150
32144993711,16cyclictest5977-21mailstats07:20:250
32147993632,3cyclictest41-21ksoftirqd/309:45:143
32147993631,3cyclictest41-21ksoftirqd/311:55:003
32147993631,3cyclictest41-21ksoftirqd/308:10:203
32147993631,3cyclictest41-21ksoftirqd/307:54:593
32147993630,4cyclictest41-21ksoftirqd/312:03:163
32147993630,4cyclictest41-21ksoftirqd/311:31:273
32147993630,4cyclictest41-21ksoftirqd/308:33:403
32145993631,3cyclictest25-21ksoftirqd/111:02:041
32145993631,3cyclictest25-21ksoftirqd/109:20:121
32145993630,4cyclictest25-21ksoftirqd/109:59:501
32145993630,4cyclictest25-21ksoftirqd/109:51:121
32145993630,4cyclictest25-21ksoftirqd/107:42:071
3214499369,16cyclictest22351-21sshd11:18:180
3214499366,21cyclictest0-21swapper/011:50:250
32147993531,2cyclictest41-21ksoftirqd/311:00:203
32147993530,3cyclictest41-21ksoftirqd/312:17:283
32147993530,3cyclictest41-21ksoftirqd/311:28:353
32147993530,3cyclictest41-21ksoftirqd/310:20:463
32147993530,3cyclictest41-21ksoftirqd/309:40:023
32147993530,3cyclictest41-21ksoftirqd/309:01:363
32147993529,4cyclictest41-21ksoftirqd/308:16:223
32145993529,4cyclictest25-21ksoftirqd/111:53:031
3214499358,15cyclictest10867-21/usr/sbin/munin10:55:220
32144993529,4cyclictest9-21ksoftirqd/011:10:580
32144993529,4cyclictest9-21ksoftirqd/011:03:160
32144993529,4cyclictest9-21ksoftirqd/007:11:530
32147993430,3cyclictest41-21ksoftirqd/308:59:593
32147993430,2cyclictest41-21ksoftirqd/311:45:143
32147993429,3cyclictest5489-21cron08:30:003
32147993429,3cyclictest41-21ksoftirqd/311:44:443
32147993429,3cyclictest41-21ksoftirqd/311:07:573
32147993428,4cyclictest41-21ksoftirqd/311:57:263
32147993428,4cyclictest41-21ksoftirqd/310:33:303
32147993428,4cyclictest41-21ksoftirqd/308:41:503
32147993428,4cyclictest41-21ksoftirqd/307:31:303
32145993429,3cyclictest25-21ksoftirqd/112:26:531
32145993429,3cyclictest25-21ksoftirqd/112:20:131
32145993428,4cyclictest25-21ksoftirqd/110:15:391
32145993428,4cyclictest25-21ksoftirqd/109:30:111
32145993428,4cyclictest25-21ksoftirqd/107:19:331
32145993412,19cyclictest29112-21ls11:30:261
3214599340,4cyclictest16049-21fschecks_count11:05:161
3214499348,13cyclictest1308-21runrttasks08:10:530
32147993328,3cyclictest41-21ksoftirqd/312:28:073
32147993328,3cyclictest41-21ksoftirqd/310:42:563
32147993328,3cyclictest41-21ksoftirqd/307:37:443
32147993328,3cyclictest28443-21sendmail12:40:003
32147993328,3cyclictest28443-21sendmail12:40:003
32147993327,4cyclictest41-21ksoftirqd/310:46:343
32147993327,4cyclictest41-21ksoftirqd/308:52:453
32147993327,4cyclictest41-21ksoftirqd/307:17:333
32145993328,3cyclictest25-21ksoftirqd/111:29:121
32145993328,3cyclictest25-21ksoftirqd/110:04:411
32145993328,3cyclictest25-21ksoftirqd/108:52:021
32145993328,3cyclictest25-21ksoftirqd/107:25:561
32145993327,4cyclictest25-21ksoftirqd/110:41:021
32145993316,14cyclictest13913-21uname07:40:011
3214499336,16cyclictest0-21swapper/010:15:160
3214499335,15cyclictest0-21swapper/009:10:110
32144993328,3cyclictest9-21ksoftirqd/010:53:500
32144993328,3cyclictest9-21ksoftirqd/007:52:090
139291330,0ptp4l401ktimersoftd/310:00:123
32147993226,4cyclictest41-21ksoftirqd/309:25:583
32147993221,3cyclictest14547-21cut07:40:153
3214599328,21cyclictest32348-21grep07:10:141
32145993228,3cyclictest25-21ksoftirqd/109:00:141
32145993226,4cyclictest25-21ksoftirqd/109:06:401
32145993226,4cyclictest25-21ksoftirqd/108:05:461
32145993226,4cyclictest25-21ksoftirqd/107:56:391
32145993226,4cyclictest25-21ksoftirqd/107:24:571
3214599321,25cyclictest182302sleep112:15:261
32144993226,4cyclictest9-21ksoftirqd/011:56:110
3214599319,19cyclictest24932-21latency_hist11:25:001
3214599315,4cyclictest18792-21cut11:10:191
32145993126,3cyclictest25-21ksoftirqd/109:36:281
32145993126,3cyclictest25-21ksoftirqd/108:22:171
32145993126,3cyclictest25-21ksoftirqd/108:14:561
32145993126,3cyclictest25-21ksoftirqd/108:00:131
32145993126,3cyclictest25-21ksoftirqd/107:49:571
32145993125,4cyclictest25-21ksoftirqd/112:08:321
32145993125,4cyclictest25-21ksoftirqd/110:56:511
32145993124,4cyclictest25-21ksoftirqd/109:16:381
3214599311,28cyclictest0-21swapper/110:12:371
3214599310,2cyclictest0-21swapper/110:45:121
32147993025,3cyclictest41-21ksoftirqd/312:05:183
32147993025,3cyclictest41-21ksoftirqd/310:16:063
32147993019,9cyclictest41-21ksoftirqd/309:05:253
3214599307,19cyclictest19303-21tune2fs07:50:161
3214599303,4cyclictest1185-21grep09:25:231
3214599303,24cyclictest3350-21/usr/sbin/munin08:25:141
32145993025,3cyclictest25-21ksoftirqd/111:48:531
32145993025,3cyclictest25-21ksoftirqd/109:40:111
32145993025,3cyclictest25-21ksoftirqd/108:43:071
3214599302,4cyclictest9389-21apt-get07:30:131
32145993015,13cyclictest9023-21hddtemp_smartct10:50:171
32145993011,17cyclictest3101-21seq10:38:161
32147992924,3cyclictest41-21ksoftirqd/311:13:363
3214599299,18cyclictest20588-21seq10:05:471
3214599296,20cyclictest258692chrt12:32:391
3214599292,4cyclictest0-21swapper/110:30:131
32145992924,3cyclictest25-21ksoftirqd/112:11:231
32145992924,3cyclictest25-21ksoftirqd/111:56:541
32145992924,3cyclictest25-21ksoftirqd/109:47:351
32145992923,4cyclictest25-21ksoftirqd/111:17:411
3214599292,22cyclictest5738-21apt-get08:30:151
139291290,0ptp4l401ktimersoftd/308:35:163
3214599287,18cyclictest32620-21cpuspeed_turbos11:40:121
3214599286,19cyclictest5142chrt08:18:291
32145992823,3cyclictest25-21ksoftirqd/112:03:141
32145992810,15cyclictest27511-21phc2sys-jitter12:35:241
32145992810,15cyclictest27511-21phc2sys-jitter12:35:241
32145992722,3cyclictest25-21ksoftirqd/108:35:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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