You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-22 - 02:26

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 Sat Aug 22, 2026 00:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
252892890,2sleep20-21swapper/223:59:172
252892890,2sleep20-21swapper/223:59:172
31842720,2sleep20-21swapper/221:34:212
283332690,2sleep00-21swapper/019:49:100
45502670,3sleep00-21swapper/020:13:590
216282660,4sleep00-21swapper/022:24:110
41282640,1sleep04129-21/usr/sbin/munin21:39:060
41282640,1sleep04129-21/usr/sbin/munin21:39:060
308712600,3sleep20-21swapper/222:49:102
308712600,3sleep20-21swapper/222:49:102
15175995747,5cyclictest0-21swapper/000:04:000
15175995747,5cyclictest0-21swapper/000:04:000
307982530,1sleep130869-21kernelversion22:49:101
307982530,1sleep130869-21kernelversion22:49:101
224982510,4chrt0-21swapper/320:59:163
224982510,4chrt0-21swapper/320:59:163
220372490,3sleep30-21swapper/319:33:583
124572480,2chrt0-21swapper/021:59:150
124572480,2chrt0-21swapper/021:59:150
243602430,3sleep20-21swapper/219:39:072
243602430,3sleep20-21swapper/219:39:072
179612420,3chrt0-21swapper/322:14:133
15175994215,17cyclictest26199-21fschecks_count00:04:080
46882410,3sleep10-21swapper/120:14:051
46882410,3sleep10-21swapper/120:14:051
291812400,3sleep20-21swapper/222:44:112
291812400,3sleep20-21swapper/222:44:112
267662400,3sleep30-21swapper/319:44:153
15176994031,7cyclictest26623-21netstat19:44:121
160592380,1sleep00-21swapper/023:34:180
160592380,1sleep00-21swapper/023:34:180
15176993732,3cyclictest25702-21latency_hist19:43:551
15176993732,3cyclictest25702-21latency_hist19:43:551
15176993731,4cyclictest1921-21switchtime20:04:171
15175993730,5cyclictest30722-21cron21:23:550
15175993730,5cyclictest30722-21cron21:23:550
278092360,2sleep30-21swapper/322:39:183
278092360,2sleep30-21swapper/322:39:183
15175993629,4cyclictest20308-21/usr/sbin/munin19:29:110
15175993627,7cyclictest20739-21threads20:54:180
15175993529,4cyclictest31747-21fschecks_time19:59:080
15175993529,4cyclictest31747-21fschecks_time19:59:080
86522340,1sleep08705-21grep21:49:150
86522340,1sleep08705-21grep21:49:150
15176993429,3cyclictest0-21swapper/100:04:071
15175993427,5cyclictest3368-21runrttasks23:03:560
15175993427,5cyclictest3368-21runrttasks23:03:560
280412330,1sleep00-21swapper/022:41:000
280412330,1sleep00-21swapper/022:41:000
1517599338,10cyclictest8279-21seq00:42:440
1517599338,10cyclictest8279-21seq00:42:440
15175993329,3cyclictest887-21grep00:23:560
15175993329,3cyclictest887-21grep00:23:560
15175993329,3cyclictest887-21grep00:23:560
15175993326,5cyclictest29778-21fschecks_count19:54:070
15175993326,5cyclictest29778-21fschecks_count19:54:070
15175993325,6cyclictest9202-21netstat20:24:140
15175993325,6cyclictest9202-21netstat20:24:140
15176993225,5cyclictest26384-21sshd22:38:391
15176993224,6cyclictest25585-21fschecks_time21:09:071
15176993223,7cyclictest28454-21needreboot19:49:121
15176993222,8cyclictest24855-21sshd21:05:391
15175993226,5cyclictest20127-21sshd23:47:390
15175993226,5cyclictest20127-21sshd23:47:390
15175993226,4cyclictest10283-21kernelversion21:54:110
15175993226,4cyclictest10283-21kernelversion21:54:110
323532310,1sleep132485-21/usr/sbin/munin22:54:081
15176993125,4cyclictest572-21cups-browsed21:03:551
15176993125,4cyclictest572-21cups-browsed21:03:551
15176993125,3cyclictest0-21swapper/120:03:551
15176993125,3cyclictest0-21swapper/120:03:551
15176993120,9cyclictest14918-21processes20:39:131
15176993120,9cyclictest14918-21processes20:39:131
15176993120,9cyclictest14918-21processes20:39:131
30672300,2sleep13182-21awk21:34:211
15176993025,2cyclictest0-21swapper/123:03:561
15176993025,2cyclictest0-21swapper/123:03:561
15176993025,2cyclictest0-21swapper/120:19:091
15176993025,2cyclictest0-21swapper/120:19:091
15176993024,4cyclictest12568-21sed20:34:091
15176993024,4cyclictest12568-21sed20:34:091
15176993023,5cyclictest6944-21fschecks_time00:39:091
15176993023,5cyclictest6944-21fschecks_time00:39:091
15176993023,5cyclictest5727-21cut23:09:091
15176993023,5cyclictest5727-21cut23:09:091
15176993022,6cyclictest19968-21fschecks_time20:54:091
15175993025,3cyclictest90-1pr/ttyS023:54:090
15175993025,3cyclictest90-1pr/ttyS023:54:090
15175993023,5cyclictest15172-21cyclictest21:01:190
15175993023,5cyclictest15172-21cyclictest21:01:190
15175993022,6cyclictest17969-21needreboot22:14:140
1517599301,12cyclictest16862-21taskset22:11:170
76922290,3sleep20-21swapper/220:19:192
76922290,3sleep20-21swapper/220:19:192
215062290,3sleep30-21swapper/320:59:003
203932290,2chrt0-21swapper/222:19:192
203932290,2chrt0-21swapper/222:19:192
203932290,2chrt0-21swapper/222:19:192
164132290,3sleep20-21swapper/222:09:182
15177992922,4cyclictest289772sleep200:09:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional