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2025-11-02 - 20:15
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Sun Nov 02, 2025 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191227198,19phc2sys0-21swapper/307:09:583
107912206172,23sleep10-21swapper/107:07:211
107922204170,23sleep20-21swapper/207:07:232
109092201167,23sleep00-21swapper/007:08:500
136991830,2ptp4l391rcuc/308:30:133
1130599680,25cyclictest1285-21snmpd07:13:173
1130499670,25cyclictest6606-21sed09:15:002
5932660,3sleep20-21swapper/209:00:192
1130499660,37cyclictest0-21swapper/210:20:002
1130499660,28cyclictest6799-21/usr/sbin/munin09:15:162
276552650,1sleep10-21swapper/112:10:231
1130599631,23cyclictest10339-21irqstats09:20:203
1130599610,24cyclictest26104-21grep09:55:113
1130599610,24cyclictest26104-21grep09:55:113
1130599600,28cyclictest992-21mailstats09:00:243
1130499591,24cyclictest10484-21sed11:35:202
1130499590,23cyclictest17971-21grep10:45:152
11302995921,3cyclictest9-21ksoftirqd/008:40:000
32492580,1sleep00-21swapper/010:15:120
121222580,3sleep30-21swapper/309:25:163
1130499580,33cyclictest14756-21iwlist09:30:172
1130499580,23cyclictest21639-21expr09:45:172
11302995820,3cyclictest9-21ksoftirqd/009:50:000
1130499573,23cyclictest24668-21phc2sys07:35:232
1130499571,24cyclictest22744-21sshd10:55:112
1130499571,24cyclictest22744-21sshd10:55:112
1130599560,25cyclictest493-21dpkg07:55:023
1130499560,24cyclictest10788-21tr10:30:152
1130499560,23cyclictest1053-21expr10:10:142
1130499560,22cyclictest670-21dpkg07:55:012
1130599551,23cyclictest23118-21df_abs10:55:153
1130599551,23cyclictest23118-21df_abs10:55:143
1130499551,23cyclictest28810-21df_abs10:00:152
1130499550,21cyclictest31430-21if_enp1s010:05:182
1130499550,21cyclictest29961-21missed_timers12:15:232
1130499540,33cyclictest32132-21cat07:50:302
1130499540,23cyclictest26911-21cut09:55:172
1130499540,23cyclictest26911-21cut09:55:172
1130499540,22cyclictest4209-21latency_hist09:10:002
1130599530,28cyclictest0-21swapper/308:10:173
1130499530,22cyclictest28052-21switchtime12:10:252
1130499530,22cyclictest14036-21sed08:20:232
1130599521,20cyclictest0-21swapper/308:40:283
1130499520,23cyclictest7917-21latency_hist10:25:002
1130599511,24cyclictest9209-21phc2sys10:25:243
1130499510,22cyclictest12416-21cat07:10:212
11302995120,4cyclictest9-21ksoftirqd/012:20:130
1130499500,22cyclictest8210-21cstates08:10:152
1130599490,24cyclictest22019-21sed10:50:263
11303994917,5cyclictest25-21ksoftirqd/108:05:191
11303994914,9cyclictest25-21ksoftirqd/109:40:011
1130599480,24cyclictest9627-21/usr/sbin/munin11:35:283
1130599480,24cyclictest10932-21sed10:30:163
1130499481,20cyclictest16771-21cstates09:35:142
1130499480,22cyclictest21938-21irqrtprio07:30:192
1130499471,24cyclictest19254-21if_enp1s007:25:162
1130499470,22cyclictest12070-21cstates09:25:152
1130499470,21cyclictest28825-21if_enp4s007:45:162
11302994718,3cyclictest9-21ksoftirqd/007:35:140
180782460,3sleep10-21swapper/111:50:251
132691460,8getstats1130599cyclictest12:27:413
1130599460,23cyclictest28543-21df_abs07:45:143
1130599460,23cyclictest2533-21cpu11:20:133
1130499460,22cyclictest26527-21date12:10:002
11303994614,5cyclictest25-21ksoftirqd/107:30:141
11303994614,4cyclictest25-21ksoftirqd/112:25:181
11303994612,4cyclictest25-21ksoftirqd/109:20:011
11302994632,4cyclictest9-21ksoftirqd/012:35:000
136991450,0ptp4l401ktimersoftd/309:17:293
1130599451,24cyclictest19359-21uniq09:40:163
1130599450,24cyclictest32679-21mailstats12:20:253
1130499452,20cyclictest19440-21cpuspeed11:55:132
1130499451,21cyclictest25952-21sed09:55:002
1130499450,24cyclictest6604-21hddtemp_smartct12:35:182
1130499450,24cyclictest6604-21hddtemp_smartct12:35:182
1130499450,23cyclictest16834-21sed08:25:252
1130399454,3cyclictest121rcu_preempt07:50:011
11303994515,4cyclictest25-21ksoftirqd/107:55:211
1130499441,29cyclictest20553-21timerwakeupswit09:40:272
11303994430,3cyclictest11435-21sshd09:23:421
11303994413,5cyclictest25-21ksoftirqd/109:50:151
11303994413,11cyclictest25-21ksoftirqd/111:40:011
11302994412,4cyclictest9-21ksoftirqd/012:35:150
11302994412,4cyclictest9-21ksoftirqd/012:35:150
136991430,0ptp4l401ktimersoftd/312:38:213
136991430,0ptp4l401ktimersoftd/312:38:213
1130599430,24cyclictest4447-21phc2sys10:15:233
1130599430,22cyclictest0-21swapper/309:35:013
1130499430,31cyclictest25819-21sed08:45:222
1130499430,23cyclictest5128-21expr11:25:172
1130499430,23cyclictest5128-21expr11:25:172
1130499430,21cyclictest3776-21cat08:00:162
11303994338,3cyclictest25-21ksoftirqd/108:40:001
1130399431,3cyclictest121rcu_preempt07:40:001
1130299430,4cyclictest9-21ksoftirqd/011:15:000
1130599420,29cyclictest28306-21users12:10:293
1130499421,20cyclictest31764-21fschecks_count12:20:162
1130499420,29cyclictest30915-21sed11:10:222
1130499420,23cyclictest18571-21irqrtprio08:30:202
1130499420,23cyclictest14322-21date11:45:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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