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2026-03-23 - 13:24
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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 rackdslot4.osadl.org (updated Mon Mar 23, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,23phc2sys0-21swapper/319:09:143
132812203170,22sleep10-21swapper/119:06:321
135282202169,22sleep00-21swapper/019:09:440
133642201169,21sleep20-21swapper/219:07:372
135512160122,14sleep00-21swapper/019:10:000
2542721470,3sleep31384799cyclictest22:45:243
1384499649,19cyclictest6945-21awk22:10:150
1384499597,11cyclictest4079-21date00:15:010
1384499586,15cyclictest23975-21cpu22:45:130
1384499585,10cyclictest0-21swapper/022:15:250
1384499578,9cyclictest28985-21/usr/sbin/munin20:45:110
141902560,4sleep314195-21cpuspeed_turbos23:30:133
55842550,3sleep25586-21mailstats21:00:252
138491550,1ptp4l401ktimersoftd/323:55:243
138491550,1ptp4l401ktimersoftd/323:55:233
1384499556,15cyclictest32251-21ls19:45:200
1384499556,11cyclictest7736-21irqstats00:20:180
138491540,1ptp4l401ktimersoftd/321:12:333
1384499547,8cyclictest12419-21ls20:10:190
1384499547,14cyclictest31315-21apt-get23:00:120
1384499537,16cyclictest11823-21df_abs22:20:150
1384499527,13cyclictest21265-21apt-get19:25:120
88962510,1sleep10-21swapper/123:20:011
1384499506,8cyclictest25146-21ls23:50:190
1384499506,7cyclictest1498-21apt-get22:00:120
1384499505,7cyclictest20602-21ls20:25:270
1384499496,8cyclictest18812-21apt-get19:20:130
1384499496,8cyclictest18812-21apt-get19:20:130
1384499496,7cyclictest13951-21apt-get21:20:130
1384499496,15cyclictest26497-21/usr/sbin/munin23:55:200
1384499496,15cyclictest26497-21/usr/sbin/munin23:55:190
1384499496,14cyclictest28650-21apt-get19:40:110
1384499496,10cyclictest22978-21ssh23:45:270
1384499488,7cyclictest8618-21apt-get23:20:030
1384499486,7cyclictest21257-21apt-get22:40:120
1384499486,7cyclictest21257-21apt-get22:40:110
13847994735,3cyclictest41-21ksoftirqd/321:05:283
13847994735,3cyclictest41-21ksoftirqd/321:05:283
1384499468,7cyclictest10137-21iostat_ios00:25:190
1384499466,7cyclictest958-21apt-get19:50:030
1384499456,7cyclictest12198-21ps21:15:170
13847994438,4cyclictest18533-21cron22:35:003
13847994438,3cyclictest420-21rs:main3
1384599447,23cyclictest11101-21seq22:19:341
1384499445,11cyclictest0-21swapper/020:24:410
1384599430,2cyclictest20906-21sshd20:26:561
1384499437,6cyclictest4657-21iostat19:55:170
1384499436,7cyclictest1788-21df23:05:130
138491420,1ptp4l401ktimersoftd/321:34:583
138491420,0ptp4l401ktimersoftd/320:51:063
1384499425,7cyclictest8280-21ls21:05:270
1384499425,7cyclictest8280-21ls21:05:260
1384499425,16cyclictest4718-21df_inode00:15:130
13847994128,5cyclictest41-21ksoftirqd/320:25:143
13845994127,12cyclictest25-21ksoftirqd/121:45:121
1384499416,7cyclictest11999-21df_inode23:25:160
1384799404,9cyclictest41-21ksoftirqd/323:05:193
13847994036,2cyclictest41-21ksoftirqd/321:25:003
13847994035,3cyclictest41-21ksoftirqd/323:45:003
138491390,0ptp4l401ktimersoftd/300:20:173
13847993934,3cyclictest41-21ksoftirqd/319:40:003
1384499394,10cyclictest0-21swapper/021:30:120
13847993833,3cyclictest41-21ksoftirqd/323:50:003
13847993833,3cyclictest41-21ksoftirqd/320:15:273
13847993833,3cyclictest41-21ksoftirqd/319:50:003
13847993833,3cyclictest41-21ksoftirqd/300:10:183
13847993832,3cyclictest41-21ksoftirqd/323:55:003
13846993833,3cyclictest33-21ksoftirqd/222:40:122
13846993833,3cyclictest33-21ksoftirqd/222:40:122
13846993832,4cyclictest33-21ksoftirqd/222:15:552
13846993826,10cyclictest33-21ksoftirqd/221:23:122
138491370,0ptp4l401ktimersoftd/322:25:123
138491370,0ptp4l401ktimersoftd/321:35:223
138491370,0ptp4l401ktimersoftd/320:00:003
138491370,0ptp4l401ktimersoftd/300:00:203
1384799373,4cyclictest41-21ksoftirqd/321:50:133
13847993732,3cyclictest41-21ksoftirqd/322:05:273
13847993732,3cyclictest41-21ksoftirqd/320:55:183
13847993732,3cyclictest41-21ksoftirqd/319:20:003
13847993732,2cyclictest41-21ksoftirqd/322:40:283
13847993732,2cyclictest41-21ksoftirqd/322:40:283
13847993732,2cyclictest41-21ksoftirqd/320:15:003
13847993731,3cyclictest41-21ksoftirqd/320:45:003
13847993724,11cyclictest41-21ksoftirqd/321:30:003
13845993731,4cyclictest25-21ksoftirqd/100:24:201
1384599370,3cyclictest0-21swapper/119:45:041
1384799366,4cyclictest41-21ksoftirqd/320:00:193
13847993632,2cyclictest41-21ksoftirqd/319:30:123
13847993631,3cyclictest41-21ksoftirqd/322:00:143
13847993631,3cyclictest41-21ksoftirqd/320:20:263
13847993631,3cyclictest41-21ksoftirqd/319:25:203
13847993631,3cyclictest41-21ksoftirqd/300:35:153
13847993631,3cyclictest41-21ksoftirqd/300:05:163
13847993630,4cyclictest41-21ksoftirqd/300:17:043
13846993630,4cyclictest33-21ksoftirqd/223:03:252
13846993630,4cyclictest33-21ksoftirqd/220:37:472
13846993629,4cyclictest33-21ksoftirqd/222:50:052
13845993630,4cyclictest25-21ksoftirqd/119:20:391
13845993630,4cyclictest25-21ksoftirqd/119:20:391
13845993622,12cyclictest25-21ksoftirqd/123:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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