You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-18 - 17:41
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 Tue Nov 18, 2025 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191237170,22phc2sys0-21swapper/307:06:183
300842213164,22sleep10-21swapper/107:08:131
300232205172,22sleep20-21swapper/207:07:262
280732203169,23sleep00-21swapper/007:05:010
2631521370,4sleep13052899cyclictest11:30:031
3052899660,25cyclictest5155-21tail09:35:321
3052899590,30cyclictest1975-21dpkg08:25:151
3052899580,23cyclictest22886-21expr11:20:281
3052799587,20cyclictest1900-21cut09:30:210
3052799586,15cyclictest17670-21cut08:55:270
3052899578,18cyclictest15884-21expr12:15:161
3052899571,22cyclictest1843-21cut11:45:191
3052799576,16cyclictest22717-21grep08:00:180
3052799565,16cyclictest18963-21cpu11:15:130
3052799562,16cyclictest0-21swapper/012:10:170
136991560,1ptp4l401ktimersoftd/311:24:253
136991560,1ptp4l401ktimersoftd/308:09:583
3052899550,22cyclictest5567-21dpkg07:25:121
3052799555,11cyclictest6903-21gzip07:25:250
3052799542,16cyclictest0-21swapper/011:50:150
3052899530,24cyclictest11579-21awk08:45:141
3052899530,23cyclictest26516-21gunzip12:35:281
3052899511,24cyclictest20080-21mailstats09:00:261
3052899511,22cyclictest27889-21seq09:18:521
3052899500,22cyclictest22534-21expr08:00:161
59298490,2rtkit-daemon0-21swapper/311:27:443
3052899480,22cyclictest19575-21seq10:06:261
3052799486,8cyclictest9649-21sensors09:45:270
3052799485,13cyclictest10596-21df07:35:140
3052899470,22cyclictest3793-21unixbench_multi10:40:311
3052799475,9cyclictest23562-21ls10:15:210
3052799475,15cyclictest6751-21/usr/sbin/munin08:35:250
3052799475,15cyclictest31978-21/usr/sbin/munin08:20:230
3052799475,15cyclictest19527-21sed09:00:200
3052899460,22cyclictest5202-21sed08:30:201
3052999453,39cyclictest22539-21cron12:30:002
3052899451,21cyclictest22561-21switchtime09:05:271
3052799456,7cyclictest11790-21irqstats12:05:210
3052799455,12cyclictest27695-21df_inode10:25:160
3052899440,23cyclictest13357-21irqrtprio07:40:181
3052799445,36cyclictest19751-21grep07:55:010
3052799444,7cyclictest10075-21irqstats08:40:220
136991430,1ptp4l401ktimersoftd/311:52:553
3052899423,22cyclictest19082-21unixbench_multi07:50:251
3052899420,23cyclictest8164-21cat09:45:001
136991420,0ptp4l401ktimersoftd/309:50:323
3052899412,37cyclictest24911-21cron12:35:001
3052799414,7cyclictest28985-21hddtemp_smartct09:20:180
3052799414,7cyclictest28985-21hddtemp_smartct09:20:180
1371914132,4phc2sys0-21swapper/307:10:003
30529994033,4cyclictest33-21ksoftirqd/211:35:122
30528994015,18cyclictest0-21swapper/107:20:241
3052899400,22cyclictest8989-21cut09:45:211
3052899400,22cyclictest7185-21cat11:55:211
3052899400,18cyclictest0-21swapper/112:05:231
3052799404,12cyclictest22639-21ps11:20:240
3052799403,7cyclictest13083-21diskstats07:40:130
30529993933,3cyclictest33-21ksoftirqd/208:30:002
30529993932,4cyclictest33-21ksoftirqd/210:46:582
3052899390,22cyclictest10595-21expr07:35:151
30530993831,5cyclictest41-21ksoftirqd/310:07:263
30529993820,16cyclictest23505-21cron11:25:002
3052899381,19cyclictest31063-21/usr/sbin/munin09:25:161
3052799383,7cyclictest32105-21memory09:25:210
3052899370,22cyclictest17437-21awk08:55:251
3052899370,22cyclictest1169-21irqrtprio07:15:221
30530993630,4cyclictest41-21ksoftirqd/311:56:333
30530993630,4cyclictest41-21ksoftirqd/308:38:073
30530993630,4cyclictest41-21ksoftirqd/307:33:383
30529993631,3cyclictest33-21ksoftirqd/211:02:532
30529993630,4cyclictest33-21ksoftirqd/212:09:082
30529993630,4cyclictest33-21ksoftirqd/211:48:422
30529993630,4cyclictest33-21ksoftirqd/211:35:002
30529993630,4cyclictest33-21ksoftirqd/209:17:192
30529993630,4cyclictest33-21ksoftirqd/207:21:452
30529993630,3cyclictest33-21ksoftirqd/209:02:582
30529993629,4cyclictest33-21ksoftirqd/207:25:022
30529993622,12cyclictest33-21ksoftirqd/212:25:002
30530993530,3cyclictest41-21ksoftirqd/312:25:003
30530993529,4cyclictest41-21ksoftirqd/310:26:393
30530993529,4cyclictest41-21ksoftirqd/309:48:123
30530993529,4cyclictest41-21ksoftirqd/307:19:043
30530993528,5cyclictest41-21ksoftirqd/309:41:103
3053099351,32cyclictest25578-21cron09:15:003
30529993529,4cyclictest33-21ksoftirqd/210:51:412
30529993529,4cyclictest33-21ksoftirqd/210:43:312
30529993529,4cyclictest33-21ksoftirqd/209:23:412
30529993529,4cyclictest33-21ksoftirqd/209:23:402
30529993529,4cyclictest33-21ksoftirqd/208:54:202
30529993529,4cyclictest33-21ksoftirqd/207:41:312
30528993513,18cyclictest24174-21grep11:25:191
3052899351,17cyclictest0-21swapper/108:35:221
30527993528,4cyclictest2708-21cron07:20:010
30530993430,3cyclictest41-21ksoftirqd/311:40:133
30530993430,3cyclictest41-21ksoftirqd/311:18:353
30530993428,4cyclictest41-21ksoftirqd/312:14:223
30530993428,4cyclictest41-21ksoftirqd/311:06:273
30530993428,4cyclictest41-21ksoftirqd/309:56:503
30530993428,4cyclictest41-21ksoftirqd/307:38:033
30530993427,5cyclictest41-21ksoftirqd/309:37:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional