You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-26 - 04:44

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 Sun Apr 26, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80580621010,3sleep13056-21PK-Backend21:25:231
139099790,64rtkit-daemon0-21swapper/219:05:162
75688227841,13sleep30-21swapper/319:09:073
75547927548,17sleep10-21swapper/119:05:121
75688927439,9sleep00-21swapper/019:09:120
8547322640,4sleep13056-21PK-Backend23:45:131
7651102510,3sleep3411rcuc/319:30:163
8316472360,1chrt831646-21/usr/sbin/munin22:40:120
8426482270,4chrt3056-21PK-Backend23:10:121
8621942250,3sleep13056-21PK-Backend00:05:181
75710799251,11cyclictest850365-21python323:30:223
75710299251,22cyclictest845865-21/usr/sbin/munin23:20:122
75710799240,22cyclictest803974-21rt-features21:20:203
139099240,15rtkit-daemon3056-21PK-Backend21:15:103
8614702230,5sleep00-21swapper/000:05:010
75710799231,9cyclictest844899-21python323:15:213
757107992318,3cyclictest848509-21ntp_states23:25:193
757102992314,7cyclictest883-21dbus-daemon19:34:152
757102992314,7cyclictest883-21dbus-daemon19:15:002
757094992320,2cyclictest3056-21PK-Backend23:59:241
757094992318,3cyclictest808068-21grep21:35:001
757092992321,1cyclictest0-21swapper/020:34:120
757092992318,3cyclictest819645-21/usr/sbin/munin22:05:160
757102992220,1cyclictest0-21swapper/222:45:312
757102992220,1cyclictest0-21swapper/222:45:312
757102992220,1cyclictest0-21swapper/222:06:112
757102992220,1cyclictest0-21swapper/219:35:092
757102992218,3cyclictest762746-21systemd19:25:022
757102992215,5cyclictest771386-21apt19:50:012
757102992215,5cyclictest771386-21apt19:50:002
757102992211,9cyclictest859350-21sshd23:56:422
757094992220,1cyclictest0-21swapper/122:10:411
75709499220,20cyclictest3056-21PK-Backend23:28:151
75709499220,20cyclictest3056-21PK-Backend00:31:281
757092992220,1cyclictest0-21swapper/020:36:000
757092992220,1cyclictest0-21swapper/020:23:570
757092992220,1cyclictest0-21swapper/000:34:480
139099220,16rtkit-daemon3056-21PK-Backend00:12:513
139099220,15rtkit-daemon3056-21PK-Backend00:09:463
139099220,14rtkit-daemon0-21swapper/223:47:312
75710799214,5cyclictest767272-21processes19:35:203
757107992117,2cyclictest1788620-21WebKitWebProces22:37:403
75710799210,20cyclictest0-21swapper/321:28:593
757102992119,1cyclictest0-21swapper/223:25:052
757102992119,1cyclictest0-21swapper/222:29:422
757102992119,1cyclictest0-21swapper/222:16:382
757102992119,1cyclictest0-21swapper/221:48:052
757102992119,1cyclictest0-21swapper/221:48:052
757102992119,1cyclictest0-21swapper/221:43:542
757102992119,1cyclictest0-21swapper/221:43:532
757102992119,1cyclictest0-21swapper/221:20:012
757102992119,1cyclictest0-21swapper/221:13:112
757102992119,1cyclictest0-21swapper/220:43:022
757102992119,1cyclictest0-21swapper/220:28:092
757102992119,1cyclictest0-21swapper/220:17:562
757102992119,1cyclictest0-21swapper/220:12:072
757102992119,1cyclictest0-21swapper/219:52:342
757102992119,1cyclictest0-21swapper/200:27:112
757102992119,1cyclictest0-21swapper/200:24:062
757102992113,6cyclictest776860-21apt20:05:142
757102992111,7cyclictest783521-21cron20:25:002
75710299210,20cyclictest0-21swapper/223:41:212
75710299210,20cyclictest0-21swapper/223:16:202
757094992119,1cyclictest3056-21PK-Backend22:49:211
757094992119,1cyclictest3056-21PK-Backend22:49:211
757094992119,1cyclictest3056-21PK-Backend21:18:231
757094992119,1cyclictest3056-21PK-Backend20:37:401
757094992119,1cyclictest3056-21PK-Backend19:48:051
757094992119,1cyclictest3056-21PK-Backend19:48:051
757094992119,1cyclictest0-21swapper/121:13:231
757094992118,2cyclictest3056-21PK-Backend21:37:501
757094992118,2cyclictest3056-21PK-Backend19:12:301
757094992116,3cyclictest436-20systemd-journal21:59:551
75709499210,20cyclictest0-21swapper/122:35:021
75709499210,19cyclictest3056-21PK-Backend23:36:461
75709499210,19cyclictest3056-21PK-Backend23:20:441
75709499210,19cyclictest3056-21PK-Backend22:51:101
75709499210,19cyclictest3056-21PK-Backend00:01:271
757092992119,1cyclictest3056-21PK-Backend20:48:370
757092992119,1cyclictest0-21swapper/023:41:560
757092992119,1cyclictest0-21swapper/023:29:320
757092992119,1cyclictest0-21swapper/022:20:440
757092992119,1cyclictest0-21swapper/021:44:000
757092992119,1cyclictest0-21swapper/021:44:000
757092992119,1cyclictest0-21swapper/021:26:230
757092992119,1cyclictest0-21swapper/021:10:210
757092992119,1cyclictest0-21swapper/020:41:140
757092992119,1cyclictest0-21swapper/020:27:220
757092992119,1cyclictest0-21swapper/020:13:090
757092992119,1cyclictest0-21swapper/020:00:110
757092992119,1cyclictest0-21swapper/019:55:240
757092992119,1cyclictest0-21swapper/019:51:250
757092992119,1cyclictest0-21swapper/019:49:360
757092992119,1cyclictest0-21swapper/019:49:360
757092992119,1cyclictest0-21swapper/019:41:190
757092992119,1cyclictest0-21swapper/019:35:510
757092992119,1cyclictest0-21swapper/019:16:440
757092992118,2cyclictest3056-21PK-Backend22:11:180
757092992118,2cyclictest3056-21PK-Backend21:19:330
757092992113,6cyclictest809323-21ntpq21:35:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional