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2026-08-21 - 19:52

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Fri Aug 21, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2040619999767,17cyclictest231ktimers/107:55:001
2040618999138,23cyclictest0-21swapper/007:50:020
204061899781,40cyclictest0-21swapper/010:20:020
2040618997422,48cyclictest2078581-21/usr/sbin/munin10:50:170
204061899681,52cyclictest0-21swapper/010:15:110
2040618996624,39cyclictest2070996-21dropbear10:05:200
204061999642,21cyclictest14-21rcu_preempt07:15:001
2040618996427,9cyclictest2070453-21/usr/sbin/munin10:00:260
204061899593,23cyclictest0-21swapper/008:15:010
204061899593,23cyclictest0-21swapper/008:15:010
2040618995913,43cyclictest2053265-21kernelversion08:20:230
204061899565,16cyclictest20850irq/208-8000000.ethernet12:15:010
2040618995629,3cyclictest2089323-21/usr/sbin/munin11:50:300
2040618995520,29cyclictest2091807-21sed12:05:290
204061899545,9cyclictest2095166-21grep12:25:260
204061899542,46cyclictest12-21ksoftirqd/009:45:010
2040618995345,4cyclictest167350irq/118-8000000.ethernet-tx010:50:010
2040618995325,3cyclictest2060936-21/usr/sbin/munin09:05:230
2040618995325,3cyclictest2060936-21/usr/sbin/munin09:05:230
204061899523,19cyclictest0-21swapper/009:20:010
2040619995140,6cyclictest0-21swapper/111:20:001
2040619995139,8cyclictest2097048-21sendmail12:40:001
2040619995139,8cyclictest2097048-21sendmail12:40:001
2040618995115,32cyclictest2059404-21ptp4l-jitter08:55:280
2040618995114,8cyclictest0-21swapper/009:00:170
2040618995038,7cyclictest0-21swapper/010:30:000
2040618995023,3cyclictest2058439-21meminfo08:50:260
2040618995022,3cyclictest2057469-21irqstats08:45:220
2040618995022,26cyclictest2041395-21users07:10:280
2040622994940,5cyclictest2049312-21sendmail08:00:012
2040618994942,4cyclictest167350irq/118-8000000.ethernet-tx007:50:210
2040618994937,8cyclictest20850irq/208-8000000.ethernet10:10:270
2040618994930,13cyclictest0-21swapper/009:50:110
204061899491,4cyclictest0-21swapper/008:05:010
2040619994831,10cyclictest2093579-21munin-plugin-st12:20:001
204061899484,7cyclictest2052256-21sh08:15:200
2040618994841,4cyclictest167350irq/118-8000000.ethernet-tx012:00:290
2040618994837,7cyclictest2065444-21grep09:30:280
2040618994826,11cyclictest0-21swapper/011:30:100
2040618994820,3cyclictest2083915-21irqstats11:20:230
2040618994820,3cyclictest2083915-21irqstats11:20:230
2040618994810,34cyclictest2095697-21fschecks_time12:30:190
2040619994742,2cyclictest0-21swapper/108:40:011
2040619994734,7cyclictest2078275-21grep10:45:281
2040618994742,2cyclictest0-21swapper/008:40:250
2040618994740,4cyclictest167350irq/118-8000000.ethernet-tx008:30:170
2040622994632,10cyclictest2042558-21sendmail07:20:012
2040622994632,10cyclictest2042558-21sendmail07:20:012
2040618994639,5cyclictest0-21swapper/007:10:020
2040618994618,3cyclictest2094091-21meminfo12:20:240
2040618994618,3cyclictest2075506-21memory10:30:250
2040618994614,29cyclictest2044795-21phc2sys-jitter07:30:250
204061899461,40cyclictest0-21swapper/007:20:010
204061899461,40cyclictest0-21swapper/007:20:010
2040618994612,30cyclictest2067671-21fschecks_time09:45:200
2040622994537,4cyclictest2056167-21sendmail08:40:002
2040622994534,8cyclictest0-21swapper/212:15:002
2040618994518,4cyclictest2082862-21df_inode11:15:160
2040619994427,12cyclictest0-21swapper/108:40:261
204061899446,3cyclictest2097008-21users12:35:270
204061899446,3cyclictest2097008-21users12:35:270
204061899444,37cyclictest0-21swapper/010:40:270
204061899444,37cyclictest0-21swapper/010:40:270
2040618994437,4cyclictest2043613-21apt-get07:25:100
204061899443,4cyclictest2087102-21df_inode11:40:170
2040618994433,8cyclictest2080049-21sshd10:59:230
2040618994432,8cyclictest0-21swapper/011:25:110
2040618994428,12cyclictest0-21swapper/009:20:140
2040618994427,12cyclictest0-21swapper/007:55:140
2040622994330,8cyclictest0-21swapper/211:55:312
2040619994331,6cyclictest0-21swapper/108:30:261
2040619994328,9cyclictest2046687-21grep07:40:271
2040619994328,11cyclictest231ktimers/112:20:121
2040619994327,9cyclictest0-21swapper/109:50:201
2040619994320,19cyclictest231ktimers/110:30:121
204061899438,33cyclictest0-21swapper/011:45:260
2040618994330,8cyclictest2046335-21grep07:40:200
2040618994327,14cyclictest167350irq/118-8000000.ethernet-tx011:10:150
2040618994316,3cyclictest2043070-21memory07:20:230
2040618994314,26cyclictest2093766-21date12:20:020
2040622994233,5cyclictest0-21swapper/210:55:292
2040619994228,9cyclictest0-21swapper/107:30:271
2040619994228,8cyclictest0-21swapper/108:20:271
2040619994228,7cyclictest0-21swapper/111:55:311
2040619994226,9cyclictest0-21swapper/110:00:271
2040618994233,7cyclictest2051066-21/usr/sbin/munin08:05:290
2040618994233,4cyclictest2069568-21grep09:55:250
2040618994229,10cyclictest2064314-21/usr/sbin/munin09:25:230
2040618994225,12cyclictest2076380-21/usr/sbin/munin10:35:250
204061899422,4cyclictest2089851-21memory11:55:270
2040622994125,9cyclictest0-21swapper/208:20:182
204062299412,32cyclictest2062354-21/usr/sbin/munin09:15:192
2040622994112,18cyclictest2054670-21/usr/sbin/munin08:30:192
2040619994129,8cyclictest0-21swapper/110:25:281
2040619994128,6cyclictest0-21swapper/109:15:271
204061999412,31cyclictest0-21swapper/109:40:141
2040619994110,24cyclictest2041636-21munin-node07:15:011
2040619994110,24cyclictest2041636-21munin-node07:15:011
204061899418,27cyclictest2056261-21sort08:40:010
2040618994129,9cyclictest2086497-21/usr/sbin/munin11:35:250
2040618994126,9cyclictest2080881-21grep11:00:260
2040618994124,14cyclictest2081319-21/usr/sbin/munin11:05:210
204061899411,37cyclictest0-21swapper/009:35:190
2040622994031,4cyclictest0-21swapper/209:45:272
2040622994028,8cyclictest2059634-21sendmail09:00:012
2040622994028,8cyclictest0-21swapper/208:50:302
2040622994027,8cyclictest0-21swapper/211:25:282
2040622994027,8cyclictest0-21swapper/209:25:212
2040619994031,6cyclictest2065481-21unixbench_singl09:30:291
2040619994029,5cyclictest0-21swapper/108:05:011
2040619994026,8cyclictest0-21swapper/107:35:291
2040619994024,9cyclictest0-21swapper/110:10:191
2040619994024,12cyclictest231ktimers/110:05:131
2040619994023,11cyclictest0-21swapper/108:55:281
2040619994023,11cyclictest0-21swapper/108:25:181
204061999401,32cyclictest0-21swapper/110:50:151
2040618994026,11cyclictest2061996-21/usr/sbin/munin09:10:260
2040618994014,3cyclictest2045360-21diskstats07:35:190
2040622993929,6cyclictest2048353-21unixbench_multi07:50:272
2040622993928,7cyclictest2070639-21grep10:00:292
204062299391,30cyclictest0-21swapper/210:25:282
204061999398,9cyclictest2057848-21apt-get08:50:011
2040619993929,5cyclictest0-21swapper/109:05:281
2040619993929,5cyclictest0-21swapper/109:05:271
2040619993927,6cyclictest0-21swapper/110:15:281
204061999392,4cyclictest0-21swapper/111:45:011
2040622993830,4cyclictest167550irq/134-8000000.ethernet-tx210:40:282
2040622993830,4cyclictest167550irq/134-8000000.ethernet-tx210:40:282
2040622993824,9cyclictest0-21swapper/208:15:012
2040622993824,9cyclictest0-21swapper/208:15:002
204062299381,8cyclictest0-21swapper/211:35:012
204061999387,23cyclictest832-21systemd-network09:28:441
2040619993828,5cyclictest14-21rcu_preempt12:05:211
2040619993826,6cyclictest2049189-21unixbench_multi07:55:291
2040619993825,8cyclictest0-21swapper/112:25:261
2040619993824,10cyclictest0-21swapper/111:30:251
2040622993724,10cyclictest0-21swapper/210:45:252
204062299371,34cyclictest0-21swapper/210:50:272
2040619993730,4cyclictest167450irq/126-8000000.ethernet-tx108:10:141
2040619993730,4cyclictest167450irq/126-8000000.ethernet-tx108:10:141
2040619993726,7cyclictest2080848-21grep11:00:261
2040619993726,5cyclictest0-21swapper/111:05:271
2040619993721,9cyclictest2066396-21apt-get09:40:001
2040618993729,6cyclictest2053916-21/usr/sbin/munin08:25:180
2040622993629,4cyclictest2060471-21cron09:04:592
2040622993623,9cyclictest0-21swapper/210:10:282
2040619993627,5cyclictest0-21swapper/111:25:001
2040619993627,5cyclictest0-21swapper/111:24:591
2040619993626,5cyclictest0-21swapper/107:30:011
2040619993623,8cyclictest0-21swapper/111:10:291
2040619993618,12cyclictest231ktimers/111:35:131
2040619993617,9cyclictest0-21swapper/112:00:291
204061999361,4cyclictest0-21swapper/107:50:011
2040622993529,3cyclictest2054474-21munin-plugin-st08:30:012
2040622993523,7cyclictest0-21swapper/207:25:192
2040622993518,11cyclictest0-21swapper/209:55:272
2040619993526,5cyclictest0-21swapper/112:30:271
2040619993522,6cyclictest0-21swapper/109:45:271
2040619993518,13cyclictest231ktimers/109:10:101
2040619993518,10cyclictest0-21swapper/111:45:271
2040619993510,21cyclictest231ktimers/109:00:021
2040622993426,4cyclictest0-21swapper/209:50:202
2040622993425,5cyclictest0-21swapper/210:30:282
2040622993425,5cyclictest0-21swapper/209:15:012
2040622993422,8cyclictest0-21swapper/208:40:282
204062299341,29cyclictest2096681-21kernelversion12:35:222
204062299341,29cyclictest2096681-21kernelversion12:35:222
2040619993425,6cyclictest0-21swapper/111:50:151
204061999341,2cyclictest0-21swapper/111:00:011
204061999341,27cyclictest0-21swapper/109:55:231
2040622993328,3cyclictest2093569-21cron12:20:002
2040622993327,3cyclictest2052709-21unixbench_singl08:15:282
2040622993325,4cyclictest0-21swapper/209:40:302
2040622993323,8cyclictest2083654-21/usr/sbin/munin11:20:272
2040622993323,8cyclictest2083654-21/usr/sbin/munin11:20:272
2040622993321,9cyclictest1660-21snmpd09:32:562
204062299331,4cyclictest0-21swapper/212:10:012
204062299331,20cyclictest2080278-21/usr/sbin/munin11:00:172
2040619993322,6cyclictest2043347-21grep07:20:281
2040622993225,4cyclictest2074013-21unixbench_singl10:20:282
2040622993224,4cyclictest0-21swapper/211:45:302
204062299321,27cyclictest2090937-21unixbench_multi12:00:292
2040619993221,7cyclictest0-21swapper/110:40:281
2040619993221,7cyclictest0-21swapper/110:40:271
204061999321,5cyclictest0-21swapper/108:55:011
2040622993125,4cyclictest167550irq/134-8000000.ethernet-tx207:47:562
2040622993122,6cyclictest2041385-21grep07:10:282
2040622993122,4cyclictest0-21swapper/209:35:192
2040622993115,12cyclictest0-21swapper/211:50:302
204062299311,27cyclictest2081116-21/usr/sbin/munin11:05:212
204062299311,27cyclictest0-21swapper/208:05:192
2040622993024,4cyclictest0-21swapper/211:10:172
2040622993024,4cyclictest0-21swapper/208:00:292
2040622993023,4cyclictest0-21swapper/207:20:252
2040622993022,5cyclictest0-21swapper/209:05:272
2040622993022,5cyclictest0-21swapper/209:05:262
2040622993022,4cyclictest0-21swapper/211:35:282
2040622993021,5cyclictest0-21swapper/210:05:292
2040619993019,8cyclictest2052795-21sendmail-msp08:20:001
204061999301,26cyclictest1660-21snmpd08:07:551
204061999301,24cyclictest0-21swapper/112:10:181
2040622992921,4cyclictest0-21swapper/209:20:162
2040622992920,5cyclictest0-21swapper/210:35:282
2040622992919,7cyclictest311ktimers/212:30:142
2040619992919,6cyclictest0-21swapper/110:25:011
2040622992820,6cyclictest0-21swapper/212:25:262
204061999282,23cyclictest0-21swapper/110:38:151
2040622992719,5cyclictest311ktimers/211:15:272
2040622992719,4cyclictest0-21swapper/207:40:262
2040622992718,7cyclictest311ktimers/207:35:112
2040622992710,15cyclictest167550irq/134-8000000.ethernet-tx207:32:232
2040619992714,8cyclictest0-21swapper/109:20:271
2040619992713,10cyclictest0-21swapper/111:25:281
2040622992619,4cyclictest0-21swapper/210:15:252
2040622992613,5cyclictest311ktimers/208:50:012
204062299261,23cyclictest0-21swapper/211:44:362
2040622992416,6cyclictest2094412-21sshd12:22:552
2040622992314,6cyclictest0-21swapper/207:10:022
204061999178,3cyclictest0-21swapper/107:10:011
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