You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-23 - 16:29

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #9, slot #3

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  Kontron
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack9slot3s.osadl.org (updated Mon Mar 23, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591650,44ptp4l0-21swapper/007:08:450
119591570,40ptp4l0-21swapper/107:08:471
3066325144,2sleep20-21swapper/207:09:552
3038725042,6sleep30-21swapper/307:06:233
119591480,35ptp4l0-21swapper/007:10:020
279792460,0sleep10-21swapper/111:05:121
171892450,0sleep317155-21perf10:45:013
30935992120,0cyclictest33-21ksoftirqd/210:30:122
119591210,1ptp4l18475-21basename09:45:160
119591210,0ptp4l0-21swapper/012:35:160
110292190,0sleep20-21swapper/209:30:172
119591180,0ptp4l0-21swapper/007:45:220
119591170,4ptp4l22244-21cat11:55:021
119591170,0ptp4l0-21swapper/111:45:161
119591170,0ptp4l0-21swapper/109:40:221
119591170,0ptp4l0-21swapper/007:15:240
30935991616,0cyclictest33-21ksoftirqd/210:55:242
119591160,1ptp4l30647-21apt-get11:10:121
119591160,1ptp4l27028-21snmp_o5powerctl11:00:210
119591160,0ptp4l0-21swapper/112:30:011
119591160,0ptp4l0-21swapper/107:35:181
30934991515,0cyclictest25-21ksoftirqd/108:50:181
119591150,2ptp4l2182-21snmp_o5powerctl12:15:230
119591150,2ptp4l0-21swapper/007:52:030
119591150,1ptp4l972-21snmpd08:52:380
119591150,1ptp4l7110-21ls12:25:181
119591150,1ptp4l5799-21ls09:20:180
119591150,1ptp4l5475-21sed11:20:240
119591150,1ptp4l494-21ntp_states08:10:180
119591150,1ptp4l32609-21ls09:10:171
119591150,1ptp4l32330-21snmp_o5powerctl11:10:210
119591150,1ptp4l27769-21snmp_o5powerctl09:00:220
119591150,1ptp4l20946-21tune2fs09:50:140
119591150,1ptp4l18597-21ls10:45:161
119591150,1ptp4l16787-21snmp_o5powerctl09:40:200
119591150,1ptp4l16422-21snmp_o5powerctl10:40:222
119591150,1ptp4l15832-21snmp_o5powerctl11:40:220
119591150,1ptp4l14812-21apt-get08:40:011
119591150,1ptp4l11480-21snmp_o5powerctl09:30:211
119591150,1ptp4l11475-21snmp_o5powerctl09:30:210
119591150,1ptp4l10144-21snmp_o5powerctl12:30:220
119591150,0ptp4l9757-21apt-get08:30:110
119591150,0ptp4l0-21swapper/112:35:131
119591150,0ptp4l0-21swapper/111:00:121
119591150,0ptp4l0-21swapper/110:40:031
119591150,0ptp4l0-21swapper/109:55:121
119591150,0ptp4l0-21swapper/109:20:111
119591150,0ptp4l0-21swapper/108:55:121
119591150,0ptp4l0-21swapper/012:25:230
119591150,0ptp4l0-21swapper/010:30:110
119591150,0ptp4l0-21swapper/010:20:130
119591150,0ptp4l0-21swapper/009:39:450
119591150,0ptp4l0-21swapper/009:15:140
119591150,0ptp4l0-21swapper/009:05:130
119591140,1ptp4l7749-21df_inode07:25:151
119591140,1ptp4l7709-21grep11:25:211
119591140,1ptp4l4252-21smartctl11:20:151
119591140,1ptp4l4076-21ps12:20:160
119591140,1ptp4l30272-21aten_r9power_cu12:10:121
119591140,1ptp4l29338-21netstat11:05:200
119591140,1ptp4l28345-21/usr/sbin/munin10:05:190
119591140,1ptp4l28312-21smartctl12:05:140
119591140,1ptp4l27577-21cat12:05:020
119591140,1ptp4l2605-21/usr/sbin/munin08:15:150
119591140,1ptp4l23778-21cpuspeed_turbos07:55:140
119591140,1ptp4l23469-21if_enp3s010:55:161
119591140,1ptp4l20368-21expr10:50:140
119591140,1ptp4l19063-21snmp_o5powerctl10:45:200
119591140,1ptp4l15751-21df_inode08:40:130
119591140,1ptp4l14282-21aten2.4-expect11:40:141
119591140,1ptp4l12055-21/usr/sbin/munin10:35:270
119591140,1ptp4l11468-21/usr/sbin/munin11:35:140
119591140,0ptp4l30041-21snmp_o5powerctl10:05:251
119591140,0ptp4l28905-21ls12:05:161
119591140,0ptp4l24215-21ps10:55:220
119591140,0ptp4l22021-21ls07:50:181
119591140,0ptp4l19652-21ls09:45:221
119591140,0ptp4l0-21swapper/209:35:222
119591140,0ptp4l0-21swapper/208:35:232
119591140,0ptp4l0-21swapper/207:35:142
119591140,0ptp4l0-21swapper/112:20:161
119591140,0ptp4l0-21swapper/111:50:251
119591140,0ptp4l0-21swapper/111:35:151
119591140,0ptp4l0-21swapper/111:30:261
119591140,0ptp4l0-21swapper/111:15:181
119591140,0ptp4l0-21swapper/110:50:221
119591140,0ptp4l0-21swapper/110:35:241
119591140,0ptp4l0-21swapper/110:20:171
119591140,0ptp4l0-21swapper/110:10:031
119591140,0ptp4l0-21swapper/110:10:021
119591140,0ptp4l0-21swapper/109:25:191
119591140,0ptp4l0-21swapper/109:15:021
119591140,0ptp4l0-21swapper/109:00:021
119591140,0ptp4l0-21swapper/108:45:161
119591140,0ptp4l0-21swapper/108:20:261
119591140,0ptp4l0-21swapper/108:15:221
119591140,0ptp4l0-21swapper/108:10:101
119591140,0ptp4l0-21swapper/107:45:221
119591140,0ptp4l0-21swapper/107:30:221
119591140,0ptp4l0-21swapper/011:50:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional