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2024-12-11 - 13:19

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 Wed Dec 11, 2024 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
317762920,5sleep030829-21/usr/sbin/munin23:51:490
317762920,5sleep030829-21/usr/sbin/munin23:51:490
149742910,2chrt0-21swapper/323:06:503
175332830,4chrt17536-21fschecks_time00:41:420
175332830,4chrt17536-21fschecks_time00:41:420
50652760,2chrt5063-21ntpq22:41:460
50652760,2chrt5063-21ntpq22:41:460
36222740,4chrt3624-21sed21:11:500
36222740,4chrt3624-21sed21:11:500
275842700,3chrt0-21swapper/320:51:393
275842700,3chrt0-21swapper/320:51:393
252772700,3sleep30-21swapper/323:36:363
252772700,3sleep30-21swapper/323:36:363
294572640,2sleep20-21swapper/223:46:442
294572640,2sleep20-21swapper/223:46:442
31592580,2chrt3137-21fschecks_time19:46:411
31592580,2chrt3137-21fschecks_time19:46:411
142732580,3chrt14276-21ntp_kernel_pll_00:31:450
142732580,3chrt14276-21ntp_kernel_pll_00:31:450
142732580,3chrt14276-21ntp_kernel_pll_00:31:450
317282540,3chrt0-21swapper/321:01:443
317282540,3chrt0-21swapper/321:01:443
309392530,3chrt0-21swapper/021:01:250
309392530,3chrt0-21swapper/021:01:250
227792524,35sleep122101-21/usr/sbin/munin19:11:471
227792524,35sleep122101-21/usr/sbin/munin19:11:471
264712500,2sleep30-21swapper/322:11:513
264712500,2sleep30-21swapper/322:11:513
310742490,3sleep20-21swapper/222:26:332
310742490,3sleep20-21swapper/222:26:332
112472470,2chrt0-21swapper/120:06:471
112472470,2chrt0-21swapper/120:06:471
2400799462,35cyclictest4155-40gzip00:06:361
2400799462,35cyclictest4155-40gzip00:06:361
2400799461,34cyclictest23189-21date23:31:331
79712450,3sleep00-21swapper/022:51:270
236542456,15sleep30-21swapper/319:15:203
236542456,15sleep30-21swapper/319:15:203
24006994435,7cyclictest3932-21cut00:06:300
24006994435,7cyclictest3932-21cut00:06:300
24006994435,7cyclictest3932-21cut00:06:300
71052410,5sleep1281ktimers/119:56:421
4382410,3sleep30-21swapper/323:56:383
59702400,2sleep20-21swapper/200:11:332
59702400,2sleep20-21swapper/200:11:332
29992400,1sleep00-21swapper/019:46:400
29992400,1sleep00-21swapper/019:46:400
24006993929,8cyclictest11427-21latency_hist00:26:250
24006993929,8cyclictest11427-21latency_hist00:26:250
24006993832,4cyclictest4186-21cpu00:06:370
24006993832,4cyclictest4186-21cpu00:06:370
24006993731,4cyclictest26621-21timerwakeupswit20:46:500
24006993731,4cyclictest19629-21latency_hist20:31:240
24006993731,4cyclictest19629-21latency_hist20:31:240
24006993731,4cyclictest0-21swapper/022:36:340
109082360,2sleep30-21swapper/321:31:433
24007993528,5cyclictest799-21runrttasks23:18:411
24007993528,5cyclictest799-21runrttasks23:18:411
24006993529,4cyclictest2644-21latency_hist19:46:250
24006993529,4cyclictest2644-21latency_hist19:46:250
24006993528,5cyclictest171ktimers/020:41:370
24006993528,5cyclictest171ktimers/020:41:370
24007993425,7cyclictest16103-21needreboot00:36:451
2400699348,5cyclictest0-21swapper/021:01:380
2400699348,5cyclictest0-21swapper/021:01:380
24006993428,4cyclictest11910-21fschecks_time00:26:400
24006993427,5cyclictest25274-21fschecks_time23:36:360
24006993427,5cyclictest25274-21fschecks_time23:36:360
24007993325,6cyclictest20290-21netstat21:56:441
24007993325,6cyclictest20290-21netstat21:56:441
24007993323,8cyclictest21806-21lldpd22:16:491
24007993323,8cyclictest21806-21lldpd22:16:491
2400799331,26cyclictest11913-21chrt23:01:371
2400799331,26cyclictest11913-21chrt23:01:371
24006993327,4cyclictest24005-21cyclictest20:01:250
24006993327,4cyclictest13544-21cron23:06:240
24006993327,4cyclictest13544-21cron23:06:240
24006993326,5cyclictest13925-21latency_hist21:41:340
139992330,1sleep114174-21/usr/sbin/munin23:06:411
47632320,2chrt0-21swapper/319:51:373
47632320,2chrt0-21swapper/319:51:373
24007993226,4cyclictest7085-21sendmail_mailqu22:46:501
24006993228,2cyclictest0-21swapper/022:31:360
24006993228,2cyclictest0-21swapper/022:31:360
238092323,22sleep023770-21ls19:16:260
238092323,22sleep023770-21ls19:16:260
24007993127,3cyclictest4837-21gltestperf21:16:421
24007993127,3cyclictest4837-21gltestperf21:16:421
24007993124,5cyclictest27445-21kernelversion23:41:431
24007993123,6cyclictest29290-21fschecks_count22:21:391
24007993123,6cyclictest29290-21fschecks_count22:21:391
24007993122,7cyclictest26005-21kernelversion20:46:421
2400799311,21cyclictest12059-21latency_hist21:36:331
2400699317,21cyclictest171ktimers/020:16:380
2400699317,21cyclictest171ktimers/020:16:380
24006993124,5cyclictest26038-21proc_pri22:11:480
24006993124,5cyclictest26038-21proc_pri22:11:480
24006993123,6cyclictest28624-21unixbench_singl20:51:500
24006993123,6cyclictest28624-21unixbench_singl20:51:500
165672310,2sleep016-21ksoftirqd/000:36:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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