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2026-07-06 - 00:02

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 Sun Jul 05, 2026 12:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2076121360,2sleep20-21swapper/209:23:242
2076121360,2sleep20-21swapper/209:23:242
2076121360,2sleep20-21swapper/209:23:242
2987621200,3sleep30-21swapper/312:38:353
2987621200,3sleep30-21swapper/312:38:353
925021060,2chrt8954-21latency_hist08:53:241
925021060,2chrt8954-21latency_hist08:53:241
925021060,2chrt8954-21latency_hist08:53:241
2185021020,3chrt0-21swapper/012:18:300
2185021020,3chrt0-21swapper/012:18:300
2185021020,3chrt0-21swapper/012:18:300
129162840,2sleep10-21swapper/111:53:341
129162840,2sleep10-21swapper/111:53:341
165962670,3sleep30-21swapper/312:03:333
165962670,3sleep30-21swapper/312:03:333
165962670,3sleep30-21swapper/312:03:333
25302620,2sleep30-21swapper/308:33:333
95182600,3sleep30-21swapper/307:28:123
186192600,1sleep018711-21latency_hist09:18:250
186192600,1sleep018711-21latency_hist09:18:250
186192600,1sleep018711-21latency_hist09:18:250
321642580,3chrt0-21swapper/209:53:272
321642580,3chrt0-21swapper/209:53:272
212972570,3chrt0-21swapper/109:23:321
155852540,1sleep10-21swapper/109:08:321
155852540,1sleep10-21swapper/109:08:321
155852540,1sleep10-21swapper/109:08:321
231312520,4sleep30-21swapper/312:23:233
231312520,4sleep30-21swapper/312:23:233
231312520,4sleep30-21swapper/312:23:233
327282500,1sleep132753-21latency_hist11:23:121
327282500,1sleep132753-21latency_hist11:23:121
273552490,2sleep127357-21basename11:08:241
4191994617,8cyclictest24002-21swap12:23:331
4191994617,8cyclictest24002-21swap12:23:331
317932450,3chrt0-21swapper/211:18:302
317932450,3chrt0-21swapper/211:18:302
141872450,2sleep00-21swapper/009:03:370
141872450,2sleep00-21swapper/009:03:370
141872450,2sleep00-21swapper/009:03:370
65002440,2sleep06698-21unixbench_singl08:43:360
65002440,2sleep06698-21unixbench_singl08:43:360
4191994421,6cyclictest28053-21df09:43:231
4191994421,6cyclictest28053-21df09:43:231
4191994420,8cyclictest2992-21taskset08:34:061
4191994417,9cyclictest18637-21sed09:18:241
4191994417,9cyclictest18637-21sed09:18:241
4191994417,9cyclictest18637-21sed09:18:241
7592430,4sleep3431rcuc/311:23:253
4191994330,7cyclictest0-21swapper/110:59:501
4191994330,7cyclictest0-21swapper/110:59:501
4191994330,7cyclictest0-21swapper/110:59:501
4191994320,5cyclictest23503-21bingrep08:03:291
4191994320,5cyclictest23503-21bingrep08:03:291
4191994316,10cyclictest964-21cat09:58:171
4191994316,10cyclictest964-21cat09:58:171
131502430,4sleep1773-21apache210:28:321
131502430,4sleep1773-21apache210:28:321
117672430,1sleep111895-21/usr/sbin/munin11:53:231
117672430,1sleep111895-21/usr/sbin/munin11:53:231
117672430,1sleep111895-21/usr/sbin/munin11:53:231
4191994234,5cyclictest700-21192.168.115.40-manager09:41:121
4191994234,5cyclictest700-21192.168.115.40-manager09:41:121
4191994219,11cyclictest30075-21chrt08:22:371
4191994219,11cyclictest30075-21chrt08:22:371
4191994219,11cyclictest30075-21chrt08:22:371
4191994219,10cyclictest10967-21if_eth010:23:271
4191994219,10cyclictest10967-21if_eth010:23:271
4191994218,7cyclictest20649-21fschecks_time09:23:241
4191994218,7cyclictest20649-21fschecks_time09:23:241
4191994218,11cyclictest4177-21cat11:33:171
4191994218,11cyclictest28932-21taskset11:12:221
4191994218,11cyclictest28932-21taskset11:12:221
4191994216,11cyclictest6067-21taskset11:38:171
4191994216,11cyclictest6067-21taskset11:38:171
4191994134,4cyclictest700-21192.168.115.40-manager07:45:321
4191994134,4cyclictest700-21192.168.115.40-manager07:45:321
4191994130,9cyclictest14982-21fschecks_count09:08:261
4191994130,9cyclictest14982-21fschecks_count09:08:261
4191994130,9cyclictest14982-21fschecks_count09:08:261
4191994118,9cyclictest21832-21taskset09:24:301
4191994118,9cyclictest21832-21taskset09:24:301
4191994118,8cyclictest5615-21/usr/sbin/munin10:08:311
4191994118,8cyclictest5615-21/usr/sbin/munin10:08:311
4191994116,8cyclictest14717-21/usr/sbin/munin11:58:351
4191994116,8cyclictest14717-21/usr/sbin/munin11:58:351
4191994116,8cyclictest14717-21/usr/sbin/munin11:58:351
4191994116,12cyclictest24266-21/usr/sbin/munin09:33:241
4191994116,12cyclictest24266-21/usr/sbin/munin09:33:241
4191994115,8cyclictest4262-21ntpq08:38:311
4191994115,8cyclictest4262-21ntpq08:38:311
212252410,2sleep021295-21processes09:23:320
47882400,2chrt4791-21wc10:08:221
47882400,2chrt4791-21wc10:08:221
47882400,2chrt4791-21wc10:08:221
4191994029,8cyclictest700-21192.168.115.40-manager08:18:191
4191994029,8cyclictest700-21192.168.115.40-manager08:18:191
4191994016,10cyclictest18711-21/usr/sbin/munin12:08:351
4191994016,10cyclictest18711-21/usr/sbin/munin12:08:351
4191994014,12cyclictest17554-21gltestperf07:48:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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