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2026-06-11 - 08:43

OSADL QA Farm on Real-time of Mainline Linux

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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 
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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 Thu Jun 11, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
273792850,3sleep30-21swapper/321:03:103
273792850,3sleep30-21swapper/321:03:103
41642680,3sleep20-21swapper/222:53:162
41642680,3sleep20-21swapper/222:53:162
286922670,3sleep30-21swapper/321:08:043
286922670,3sleep30-21swapper/321:08:043
286922670,3sleep30-21swapper/321:08:043
18396996757,7cyclictest29337-21grep00:03:020
18396996757,7cyclictest29337-21grep00:03:020
18396996757,7cyclictest29337-21grep00:03:020
89482660,3chrt0-21swapper/123:08:021
89482660,3chrt0-21swapper/123:08:021
302622650,3sleep30-21swapper/322:38:053
302622650,3sleep30-21swapper/322:38:053
47342620,3sleep10-21swapper/121:28:121
47342620,3sleep10-21swapper/121:28:121
301612550,4sleep20-21swapper/222:38:042
301612550,4sleep20-21swapper/222:38:042
14642540,2sleep01465-21if_wlan022:48:030
14642540,2sleep01465-21if_wlan022:48:030
170032530,1sleep10-21swapper/123:28:121
170032530,1sleep10-21swapper/123:28:121
33292490,3sleep30-21swapper/322:53:053
33292490,3sleep30-21swapper/322:53:053
23512490,1sleep3431rcuc/321:23:083
23512490,1sleep3431rcuc/321:23:083
23512490,1sleep3431rcuc/321:23:083
18396994824,10cyclictest0-21swapper/023:19:580
18396994824,10cyclictest0-21swapper/023:19:580
18396994821,16cyclictest4218-21seq22:53:580
18396994821,16cyclictest4218-21seq22:53:580
18396994819,18cyclictest23534-21chrt22:18:400
18396994819,18cyclictest23534-21chrt22:18:400
18396994819,18cyclictest23534-21chrt22:18:400
242052470,3sleep20-21swapper/223:48:072
242052470,3sleep20-21swapper/223:48:072
242052470,3sleep20-21swapper/223:48:072
18396994638,5cyclictest0-21swapper/000:02:560
18396994638,5cyclictest0-21swapper/000:02:560
18396994621,16cyclictest8604-21chrt21:39:330
18396994621,16cyclictest8604-21chrt21:39:330
18396994620,17cyclictest22985-21taskset23:43:470
18396994620,17cyclictest22985-21taskset23:43:470
18396994620,17cyclictest22985-21taskset23:43:470
18396994533,10cyclictest700-21192.168.115.40-manager23:37:060
18396994533,10cyclictest700-21192.168.115.40-manager23:37:060
18396994533,10cyclictest700-21192.168.115.40-manager23:37:060
18396994521,16cyclictest24633-21seq19:28:200
18396994521,10cyclictest17918-21chrt22:03:210
18396994521,10cyclictest17918-21chrt22:03:210
18396994519,17cyclictest6809-21seq21:35:270
18396994519,17cyclictest6809-21seq21:35:270
18396994519,17cyclictest11270-21taskset00:40:230
18396994519,10cyclictest18638-21taskset20:40:550
18396994422,13cyclictest683-21taskset22:46:380
18396994422,13cyclictest683-21taskset22:46:380
18396994422,13cyclictest683-21taskset22:46:380
18396994419,9cyclictest3115-21runrttasks21:26:100
18396994419,9cyclictest3115-21runrttasks21:26:100
18396994419,9cyclictest3115-21runrttasks21:26:100
18396994419,10cyclictest17577-21chrt23:31:250
18396994419,10cyclictest17577-21chrt23:31:250
18396994418,17cyclictest24294-21runrttasks20:56:310
18396994418,15cyclictest28001-21taskset21:06:030
18396994418,15cyclictest28001-21taskset21:06:030
18396994418,15cyclictest25000-21taskset23:50:460
18396994418,15cyclictest25000-21taskset23:50:460
18396994418,15cyclictest25000-21taskset23:50:460
310232430,2chrt31022-21ntp_states21:13:091
310232430,2chrt31022-21ntp_states21:13:091
310232430,2chrt31022-21ntp_states21:13:091
18396994334,7cyclictest700-21192.168.115.40-manager00:33:310
18396994334,7cyclictest700-21192.168.115.40-manager00:33:310
18396994322,10cyclictest12580-21taskset21:52:140
18396994322,10cyclictest12580-21taskset21:52:140
18396994319,10cyclictest7481-21chrt00:29:540
18396994319,10cyclictest7481-21chrt00:29:540
18396994319,10cyclictest7481-21chrt00:29:540
18396994318,11cyclictest15472-21taskset23:23:190
18396994318,11cyclictest15472-21taskset23:23:190
18396994318,11cyclictest15472-21taskset23:23:190
18396994318,10cyclictest25618-21taskset22:26:100
18396994318,10cyclictest25618-21taskset22:26:100
18396994318,10cyclictest25618-21taskset22:26:100
18396994317,10cyclictest1964-21cat19:57:520
18396994317,10cyclictest1964-21cat19:57:520
18396994316,9cyclictest0-21swapper/021:10:010
18396994316,9cyclictest0-21swapper/021:10:010
18396994316,9cyclictest0-21swapper/021:10:010
279902420,3sleep30-21swapper/323:58:093
279902420,3sleep30-21swapper/323:58:093
18396994221,7cyclictest6109-21chrt22:59:010
18396994221,7cyclictest6109-21chrt22:59:010
18396994221,7cyclictest6109-21chrt22:59:010
18396994218,7cyclictest20061-21taskset22:11:550
18396994218,7cyclictest20061-21taskset22:11:550
18396994218,10cyclictest31699-21seq21:15:050
18396994218,10cyclictest31699-21seq21:15:050
18396994218,10cyclictest31699-21seq21:15:050
18396994217,11cyclictest9878-21chrt23:08:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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