You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-25 - 18:41

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 #c, slot #7

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
  
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 rackcslot7s.osadl.org (updated Mon May 25, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
68145522450,14sleep2331rcuc/207:05:102
139099770,67rtkit-daemon0-21swapper/307:05:563
68142927347,16sleep00-21swapper/007:05:080
68286527237,13sleep10-21swapper/107:09:311
7299822500,4sleep33056-21PK-Backend09:20:133
6985472470,3sleep33056-21PK-Backend07:50:203
7356862400,3sleep20-21swapper/209:35:162
68304299374,18cyclictest0-21swapper/207:59:452
68304299374,18cyclictest0-21swapper/207:59:452
68304299373,19cyclictest0-21swapper/211:58:082
68304299373,19cyclictest0-21swapper/211:58:072
68304299291,4cyclictest883-21dbus-daemon11:35:012
683042992912,15cyclictest746519-21awk10:05:182
683039992917,8cyclictest436-20systemd-journal12:25:001
7304922280,3sleep00-21swapper/009:20:180
683042992813,13cyclictest788029-21expr12:05:122
683042992813,13cyclictest771001-21grep11:15:172
683042992812,14cyclictest714951-21cat08:35:212
68304299278,17cyclictest684715-21/usr/sbin/munin07:15:012
7514012260,8sleep234-21ksoftirqd/210:20:152
683046992618,5cyclictest729644-21idleruntime-cro09:20:013
68304299269,15cyclictest777543-21expr11:35:122
68304299268,16cyclictest883-21dbus-daemon11:00:002
68304299268,16cyclictest883-21dbus-daemon11:00:002
68304299263,21cyclictest699574-21sed07:55:002
139099260,4rtkit-daemon1389-21rtkit-daemon09:17:592
7233942250,4sleep20-21swapper/209:00:152
68304299258,15cyclictest737992-21sshd09:40:292
68304299256,17cyclictest774316-21latency11:25:152
68304299256,17cyclictest685567-21cat07:15:112
68303699250,24cyclictest696901-21/usr/sbin/munin07:45:180
68304699240,22cyclictest686536-21awk07:15:213
68304299247,15cyclictest749084-21cut10:15:012
68304299246,16cyclictest758583-21df_inode10:40:142
68304299246,16cyclictest753154-21tr10:25:122
683042992410,12cyclictest34-21ksoftirqd/208:00:212
68304299240,4cyclictest2085813-21snapd09:59:132
68303699245,5cyclictest436-20systemd-journal11:40:000
683036992416,6cyclictest796983-21df12:30:120
7459012230,4chrt3056-21PK-Backend10:05:133
683046992321,1cyclictest3056-21PK-Backend08:50:193
683046992315,6cyclictest796092-21cron12:30:003
68304699231,4cyclictest42-21ksoftirqd/312:34:543
68304299239,12cyclictest717451-21cut08:45:002
68304299237,15cyclictest688172-21sed07:20:212
68304299236,15cyclictest706361-21cat08:10:212
683042992321,1cyclictest0-21swapper/209:21:442
683042992312,9cyclictest767485-21missed_timers11:05:192
683042992310,11cyclictest978-21snmpd12:17:242
683039992320,2cyclictest3056-21PK-Backend10:56:521
683039992320,2cyclictest3056-21PK-Backend10:56:521
68303999231,20cyclictest747977-21basename10:10:151
68303699231,20cyclictest787423-21munin-run12:04:590
68303699230,21cyclictest792222-21users12:15:230
683046992220,1cyclictest0-21swapper/309:57:583
683046992220,1cyclictest0-21swapper/307:58:283
683046992220,1cyclictest0-21swapper/307:58:283
683046992219,2cyclictest3056-21PK-Backend12:17:443
683046992219,2cyclictest3056-21PK-Backend07:47:333
68304699220,20cyclictest3056-21PK-Backend12:14:193
68304699220,20cyclictest0-21swapper/310:10:163
68304299228,12cyclictest2156-21gnome-shell07:43:082
68304299227,14cyclictest0-21swapper/208:05:112
68304299226,14cyclictest762222-21grep10:50:162
68304299224,16cyclictest798622-21cat12:35:132
68304299223,17cyclictest766161-21timerwakeupswit11:00:232
683042992220,1cyclictest0-21swapper/210:17:002
683042992220,1cyclictest0-21swapper/208:25:412
683042992220,1cyclictest0-21swapper/207:32:072
68304299221,8cyclictest744560-21/usr/sbin/munin10:00:162
683042992217,4cyclictest0-21swapper/212:31:252
68304299221,2cyclictest0-21swapper/211:20:112
683039992220,1cyclictest3056-21PK-Backend08:04:231
683039992220,1cyclictest0-21swapper/110:20:091
683036992217,3cyclictest690008-21users07:25:240
683036992213,8cyclictest780610-21cut11:45:010
683046992119,1cyclictest3056-21PK-Backend07:35:293
683046992119,1cyclictest0-21swapper/311:03:553
683046992119,1cyclictest0-21swapper/310:35:583
683046992119,1cyclictest0-21swapper/310:30:373
683046992119,1cyclictest0-21swapper/309:49:263
683046992119,1cyclictest0-21swapper/308:06:113
683046992114,6cyclictest883-21dbus-daemon12:10:003
68304699210,20cyclictest3056-21PK-Backend11:48:373
68304699210,20cyclictest3056-21PK-Backend07:31:453
68304699210,20cyclictest0-21swapper/310:28:143
68304699210,20cyclictest0-21swapper/308:01:383
68304299216,14cyclictest1095-21runrttasks09:47:502
68304299216,13cyclictest754721-21/usr/sbin/munin10:30:112
68304299214,5cyclictest734174-21cut09:30:182
68304299213,3cyclictest0-21swapper/212:11:302
68304299213,3cyclictest0-21swapper/212:04:132
68304299213,3cyclictest0-21swapper/208:57:312
68304299213,3cyclictest0-21swapper/208:57:312
68304299213,3cyclictest0-21swapper/207:39:402
68304299212,16cyclictest726440-21apt09:10:112
683042992119,1cyclictest0-21swapper/212:28:002
683042992119,1cyclictest0-21swapper/211:42:302
683042992119,1cyclictest0-21swapper/210:36:132
68304299211,19cyclictest712527-21cstates08:30:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional