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2026-01-01 - 04:03

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot6s.osadl.org (updated Thu Jan 01, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2062950999641,48cyclictest167350irq/118-8000000.ethernet-tx019:25:290
206295099891,81cyclictest2118285-21/usr/sbin/munin00:35:230
206295099891,81cyclictest2118285-21/usr/sbin/munin00:35:220
206295299814,49cyclictest0-21swapper/123:30:011
206295099812,72cyclictest0-21swapper/023:20:280
206295099712,60cyclictest0-21swapper/020:05:160
206295099711,2cyclictest2065100-21apt-get19:20:130
2062950996932,30cyclictest0-21swapper/022:05:200
206295099691,66cyclictest0-21swapper/020:55:290
206295099691,65cyclictest2064414-21/usr/sbin/munin19:15:200
206295099691,4cyclictest2101945-21/usr/sbin/munin22:55:240
206295099691,3cyclictest2102592-21df23:00:180
206295099681,3cyclictest2109350-21/usr/sbin/munin23:40:170
206295099671,64cyclictest2096392-21users22:20:290
206295099671,63cyclictest2098093-21cron22:35:000
206295099671,62cyclictest2082804-21wc21:05:010
206295099661,61cyclictest2063864-21latency_hist19:15:020
206295099661,59cyclictest2097156-21grep22:25:260
206295099661,3cyclictest2111872-21df_inode23:55:160
2062950996525,37cyclictest0-21swapper/021:50:010
2062950996525,37cyclictest0-21swapper/021:50:000
206295099651,61cyclictest2112963-21meminfo00:00:260
206295099651,3cyclictest2099010-21latency_hist22:40:010
206295099644,55cyclictest0-21swapper/021:10:200
206295099641,61cyclictest2078850-21if_eth120:40:220
206295099641,56cyclictest2113728-21latency_hist00:10:020
206295099641,3cyclictest2094048-21df22:10:180
2062950996337,23cyclictest167350irq/118-8000000.ethernet-tx021:25:150
206295099631,60cyclictest0-21swapper/022:00:240
206295099631,60cyclictest0-21swapper/022:00:240
206295499628,20cyclictest2064041-21cpu19:15:022
2062950996226,31cyclictest0-21swapper/000:20:220
2062950996226,31cyclictest0-21swapper/000:20:210
206295099621,59cyclictest0-21swapper/019:35:230
206295099621,53cyclictest2075873-21latency_hist20:25:020
206295099620,2cyclictest0-21swapper/021:05:130
2062950996140,16cyclictest167350irq/118-8000000.ethernet-tx020:35:310
206295099612,4cyclictest2117927-21latency_hist00:35:000
206295099611,58cyclictest0-21swapper/020:25:170
206295099611,57cyclictest2074769-21uname20:15:270
2062952996051,6cyclictest231ktimers/100:20:001
2062950996025,30cyclictest0-21swapper/020:00:300
206295099602,3cyclictest2103700-21phc2sys23:05:320
206295099601,5cyclictest1660-21snmpd00:10:200
206295099601,57cyclictest0-21swapper/019:50:090
206295099601,56cyclictest1660-21snmpd20:54:200
206295099601,56cyclictest1660-21snmpd20:54:200
206295099601,55cyclictest2069905-21sed19:45:280
206295099601,53cyclictest0-21swapper/023:50:130
206295099601,3cyclictest2067075-21meminfo19:30:230
2062950995924,4cyclictest167350irq/118-8000000.ethernet-tx022:45:250
206295099591,4cyclictest2110186-21df23:45:170
206295099591,4cyclictest2106821-21diskstats23:25:180
206295099591,28cyclictest0-21swapper/021:50:110
206295099581,54cyclictest2108681-21interrupts23:35:210
206295099581,3cyclictest2107659-21diskstats23:30:190
2062950995719,32cyclictest0-21swapper/019:40:340
206295099571,3cyclictest2071295-21meminfo19:55:250
2062950995622,29cyclictest0-21swapper/021:15:310
206295099561,4cyclictest2088890-21df21:40:160
206295099561,3cyclictest2087438-21meminfo21:30:240
206295099561,31cyclictest0-21swapper/022:50:140
2062950995517,9cyclictest0-21swapper/021:35:280
206295099551,47cyclictest0-21swapper/022:00:010
206295099551,28cyclictest0-21swapper/020:30:140
2062950995416,9cyclictest0-21swapper/020:10:250
206295099541,4cyclictest2116426-21diskstats00:25:180
206295099541,3cyclictest2062946-21cyclictest23:15:300
206295099531,4cyclictest2104819-21users23:10:460
206295099531,49cyclictest0-21swapper/022:15:140
206295099521,4cyclictest0-21swapper/021:20:140
2062952995141,5cyclictest2111608-21munin-plugin-st23:55:011
206295099511,48cyclictest0-21swapper/022:41:390
206295099511,29cyclictest2079866-21ptp4l20:45:270
2062954994934,11cyclictest2075023-21sendmail20:20:002
206295099491,18cyclictest2063070-21latency_hist19:10:020
2062954994836,8cyclictest0-21swapper/223:55:262
2062952994826,12cyclictest0-21swapper/123:55:271
2062954994733,10cyclictest311ktimers/220:35:182
2062954994731,8cyclictest30-21rcuc/220:15:002
2062954994727,13cyclictest311ktimers/220:30:132
2062952994739,5cyclictest2110761-21cron23:50:001
2062952994737,5cyclictest2065740-21munin-plugin-st19:25:001
2062952994733,9cyclictest0-21swapper/120:50:021
206295099471,25cyclictest2114117-1kworker/0:1H+kblockd00:20:010
2062954994637,5cyclictest0-21swapper/223:30:002
2062954994634,7cyclictest2088512-21grep21:35:292
2062954994630,8cyclictest0-21swapper/222:40:282
2062952994633,8cyclictest2116997-21munin-plugin-st00:30:001
2062952994632,8cyclictest2094573-21grep22:10:291
2062954994534,7cyclictest0-21swapper/221:45:292
2062954994534,7cyclictest0-21swapper/221:45:282
2062954994533,8cyclictest0-21swapper/222:15:282
206295299453,23cyclictest22-21rcuc/121:25:011
2062954994435,5cyclictest2083553-21cron21:10:002
2062954994435,5cyclictest2069949-21cron19:50:012
2062954994434,7cyclictest2080094-21munin-plugin-st20:50:012
2062954994333,6cyclictest2118700-21cut00:40:012
2062954994333,6cyclictest2118700-21cut00:40:012
206295499431,6cyclictest2094547-21unixbench_multi22:10:302
2062952994335,5cyclictest2103174-21munin-plugin-st23:05:001
2062952994332,7cyclictest2070798-21munin-plugin-st19:55:011
206295299431,4cyclictest0-21swapper/119:45:201
2062954994230,8cyclictest0-21swapper/220:55:282
2062952994230,4cyclictest167450irq/126-8000000.ethernet-tx120:50:201
2062952994230,4cyclictest167450irq/126-8000000.ethernet-tx120:50:201
2062952994229,8cyclictest2081324-21sh20:55:201
2062952994224,9cyclictest0-21swapper/121:35:281
2062954994135,3cyclictest0-21swapper/219:40:022
2062954994132,4cyclictest0-21swapper/222:00:282
2062954994132,4cyclictest0-21swapper/222:00:282
2062954994129,9cyclictest0-21swapper/223:15:312
2062954994129,8cyclictest2066524-21grep19:25:302
2062954994128,10cyclictest311ktimers/221:20:152
2062952994132,6cyclictest0-21swapper/123:25:001
2062952994125,10cyclictest0-21swapper/122:20:201
2062954994032,4cyclictest0-21swapper/220:20:292
2062954994031,5cyclictest0-21swapper/200:10:012
2062954994027,8cyclictest311ktimers/220:50:122
2062954994027,8cyclictest311ktimers/220:50:122
2062954994027,8cyclictest0-21swapper/200:25:302
2062954994026,11cyclictest311ktimers/222:05:142
2062954994025,10cyclictest0-21swapper/221:30:272
2062954994024,13cyclictest311ktimers/222:20:132
2062954994024,12cyclictest311ktimers/219:20:132
2062952994027,8cyclictest0-21swapper/123:40:011
2062952994025,11cyclictest0-21swapper/121:50:261
2062954993928,8cyclictest0-21swapper/220:25:302
2062954993926,5cyclictest0-21swapper/223:50:302
2062952993930,5cyclictest2064830-21grep19:15:261
2062952993927,5cyclictest0-21swapper/100:25:001
2062952993927,5cyclictest0-21swapper/100:25:001
2062952993926,9cyclictest0-21swapper/122:30:221
206295499387,2cyclictest0-21swapper/223:20:272
2062954993831,4cyclictest2108230-21munin-plugin-st23:35:002
2062954993828,6cyclictest0-21swapper/219:40:452
2062954993827,5cyclictest0-21swapper/221:25:172
2062954993826,7cyclictest0-21swapper/223:40:292
2062954993825,9cyclictest0-21swapper/220:00:302
2062952993829,5cyclictest2074951-21head20:15:281
2062952993824,6cyclictest0-21swapper/120:40:291
2062952993822,8cyclictest231ktimers/122:15:211
206295299381,30cyclictest2097151-21grep22:25:271
206295299381,2cyclictest0-21swapper/119:35:011
2062954993733,2cyclictest0-21swapper/223:50:012
2062954993727,7cyclictest2108968-21grep23:35:272
2062954993722,10cyclictest0-21swapper/223:00:272
2062954993719,14cyclictest311ktimers/222:55:122
206295299373,27cyclictest0-21swapper/121:30:291
2062952993726,7cyclictest1660-21snmpd21:40:301
2062952993725,8cyclictest0-21swapper/120:00:301
2062952993724,9cyclictest0-21swapper/123:15:271
2062952993724,8cyclictest0-21swapper/119:35:221
206295499366,5cyclictest0-21swapper/200:00:222
2062954993628,4cyclictest2116119-21grep00:20:292
2062954993628,4cyclictest2116119-21grep00:20:292
2062954993625,8cyclictest311ktimers/200:15:152
2062954993625,6cyclictest0-21swapper/200:30:292
2062954993621,8cyclictest0-21swapper/220:40:292
2062952993625,7cyclictest2073271-21grep20:05:281
2062952993625,5cyclictest0-21swapper/122:45:301
206295299362,4cyclictest2104787-21unixbench_singl23:10:441
2062952993623,8cyclictest0-21swapper/119:40:451
2062952993620,9cyclictest0-21swapper/120:25:291
206295299361,3cyclictest0-21swapper/100:35:011
206295299361,2cyclictest0-21swapper/120:35:001
2062954993527,4cyclictest0-21swapper/222:45:292
2062954993525,6cyclictest2089377-21grep21:40:292
2062954993524,7cyclictest0-21swapper/221:15:302
2062954993523,8cyclictest0-21swapper/222:40:012
2062954993519,12cyclictest311ktimers/219:50:122
206295499351,5cyclictest30-21rcuc/219:55:272
206295299357,4cyclictest2063772-21munin-node19:15:011
2062952993526,6cyclictest0-21swapper/123:35:001
2062952993525,7cyclictest0-21swapper/120:35:301
206295299352,3cyclictest2102206-21unixbench_multi22:55:281
2062952993523,8cyclictest0-21swapper/122:50:281
2062952993520,8cyclictest0-21swapper/121:50:011
2062952993520,8cyclictest0-21swapper/121:50:011
2062954993422,6cyclictest2097144-21grep22:25:272
2062952993430,2cyclictest0-21swapper/121:10:231
2062952993420,8cyclictest0-21swapper/121:20:001
2062952993420,10cyclictest0-21swapper/119:10:011
2062952993419,8cyclictest0-21swapper/122:00:001
206295299341,27cyclictest0-21swapper/123:40:281
2062954993323,4cyclictest0-21swapper/222:30:282
2062954993322,5cyclictest0-21swapper/219:15:012
2062954993320,8cyclictest0-21swapper/223:10:362
206295499321,4cyclictest2091703-21irqstats21:55:222
206295299321,7cyclictest0-21swapper/100:10:021
2062954993120,5cyclictest0-21swapper/220:05:262
2062954993119,8cyclictest0-21swapper/221:10:282
2062952993123,5cyclictest2099156-21/usr/sbin/munin22:40:261
2062952993121,5cyclictest0-21swapper/100:10:251
2062952993118,9cyclictest2086823-21grep21:25:241
206295499303,18cyclictest2082078-21/usr/sbin/munin21:00:192
2062954993017,9cyclictest0-21swapper/200:10:252
206295499301,23cyclictest0-21swapper/219:30:122
2062952993023,5cyclictest231ktimers/122:35:241
2062952993023,5cyclictest231ktimers/100:40:011
2062952993023,5cyclictest231ktimers/100:40:011
2062952993018,8cyclictest0-21swapper/121:00:291
2062954992920,7cyclictest0-21swapper/223:05:332
2062954992919,4cyclictest0-21swapper/221:50:042
2062952992920,4cyclictest0-21swapper/122:05:011
2062952992920,4cyclictest0-21swapper/122:05:011
206295299291,2cyclictest0-21swapper/119:30:001
2062952992821,5cyclictest0-21swapper/120:00:001
2062952992818,7cyclictest0-21swapper/122:05:181
2062952992815,9cyclictest0-21swapper/123:05:331
206295299281,2cyclictest0-21swapper/100:05:011
206295299281,24cyclictest2083468-21grep21:05:281
2062952992714,9cyclictest0-21swapper/120:10:311
206295299271,24cyclictest0-21swapper/120:23:331
2062954992616,6cyclictest0-21swapper/222:55:012
206295499251,2cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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