You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-02 - 05:58

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 #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Sun Aug 02, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3049021160,2sleep130491-21/usr/sbin/munin20:44:001
1680621120,2chrt0-21swapper/321:33:553
1680621120,2chrt0-21swapper/321:33:553
16122970,3sleep20-21swapper/219:28:482
16122970,3sleep20-21swapper/219:28:482
217472950,3sleep20-21swapper/221:48:502
217472950,3sleep20-21swapper/221:48:502
235922790,2sleep30-21swapper/323:18:553
57782640,3chrt0-21swapper/121:03:581
57782640,3chrt0-21swapper/121:03:581
321362640,3sleep10-21swapper/120:48:551
278262600,3chrt0-21swapper/223:28:592
278262600,3chrt0-21swapper/223:28:592
303022550,3sleep30-21swapper/322:09:013
303022550,3sleep30-21swapper/322:09:013
206062540,2sleep30-21swapper/323:10:393
206062540,2sleep30-21swapper/323:10:393
105132540,4sleep30-21swapper/322:43:543
105132540,4sleep30-21swapper/322:43:543
15902530,3sleep20-21swapper/220:53:542
15902530,3sleep20-21swapper/220:53:542
28912995244,5cyclictest0-21swapper/000:03:450
28912995244,5cyclictest0-21swapper/000:03:450
46602510,2chrt0-21swapper/123:53:591
46602510,2chrt0-21swapper/123:53:591
228252480,3sleep30-21swapper/323:18:433
228252480,3sleep30-21swapper/323:18:433
114942460,3sleep20-21swapper/200:13:502
114942460,3sleep20-21swapper/200:13:502
325312440,2sleep30-21swapper/320:49:013
261432440,1sleep2351rcuc/221:58:592
261432440,1sleep2351rcuc/221:58:592
254682430,2sleep20-21swapper/223:23:572
254682430,2sleep20-21swapper/223:23:572
96922420,2sleep1281ktimers/119:48:531
180672410,3sleep30-21swapper/323:03:563
180672410,3sleep30-21swapper/323:03:563
28913994035,3cyclictest20051-21idleruntime-cro20:18:371
28913994035,3cyclictest20051-21idleruntime-cro20:18:371
2891399385,28cyclictest7969-21memory00:03:551
2891399385,28cyclictest7969-21memory00:03:551
28913993831,6cyclictest22663-21threads21:49:001
28913993831,6cyclictest22663-21threads21:49:001
2891299382,27cyclictest8185-21/usr/sbin/munin00:04:000
2891299382,27cyclictest8185-21/usr/sbin/munin00:04:000
238782380,2sleep023880-21sed21:53:500
238782380,2sleep023880-21sed21:53:500
2891699371,16cyclictest7236-21taskset00:03:423
2891699371,16cyclictest7236-21taskset00:03:423
28913993629,5cyclictest8949-21threads22:39:011
28913993629,5cyclictest8949-21threads22:39:011
82262350,1sleep0201rcuc/019:44:010
82262350,1sleep0201rcuc/019:44:010
28913993527,6cyclictest4735-21latency22:28:531
28913993527,6cyclictest4735-21latency22:28:531
163832350,2sleep016506-21cat22:58:590
163832350,2sleep016506-21cat22:58:590
163832350,2sleep016506-21cat22:58:590
109002350,2sleep110901-21kernelversion21:18:541
109002350,2sleep110901-21kernelversion21:18:541
28913993428,4cyclictest572-21cups-browsed21:13:591
28913993428,4cyclictest572-21cups-browsed21:13:591
28913993424,8cyclictest11610-21netstat19:53:561
28913993424,8cyclictest11610-21netstat19:53:561
28913993328,3cyclictest13025-21ntp_offset21:23:561
28913993328,3cyclictest13025-21ntp_offset21:23:561
28913993327,4cyclictest1996-21fschecks_time23:48:521
28913993327,4cyclictest1996-21fschecks_time23:48:521
28913993324,7cyclictest12410-21netstat22:48:571
28913993324,7cyclictest12410-21netstat22:48:571
28912993326,5cyclictest9247-21fschecks_time19:48:490
28912993326,4cyclictest0-21swapper/022:43:370
28912993326,4cyclictest0-21swapper/022:43:370
2891599322,22cyclictest7272-21taskset00:03:452
2891599322,22cyclictest7272-21taskset00:03:452
28913993227,3cyclictest0-21swapper/123:43:371
28913993227,3cyclictest0-21swapper/123:43:371
28913993227,3cyclictest0-21swapper/123:43:371
28913993225,5cyclictest25635-21fschecks_time21:58:521
28913993225,5cyclictest25635-21fschecks_time21:58:521
28912993225,5cyclictest28911-21cyclictest19:38:510
28912993225,5cyclictest28911-21cyclictest19:38:510
28912993225,5cyclictest12040-21cut22:48:520
28912993225,5cyclictest12040-21cut22:48:520
28912993219,11cyclictest0-21swapper/023:23:530
28912993219,11cyclictest0-21swapper/023:23:530
197042320,1sleep2351rcuc/223:08:532
197042320,1sleep2351rcuc/223:08:532
2891599311,25cyclictest8664-21taskset00:04:092
2891599311,25cyclictest8664-21taskset00:04:092
28913993127,3cyclictest1854-21gltestperf19:28:501
28913993127,3cyclictest1854-21gltestperf19:28:501
28913993126,3cyclictest0-21swapper/121:13:371
28913993126,3cyclictest0-21swapper/121:13:371
28913993124,5cyclictest7204-21sshd00:03:401
28913993124,5cyclictest7204-21sshd00:03:401
28913993122,7cyclictest9759-21kernelversion00:08:571
28913993122,7cyclictest9759-21kernelversion00:08:571
209882310,8sleep120991-21kernelversion00:38:531
209882310,8sleep120991-21kernelversion00:38:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional