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2026-08-15 - 21:58

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 Sat Aug 15, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
96452899911,3cyclictest0-21swapper/010:55:000
964530999069,15cyclictest0-21swapper/110:55:001
96453499871,57cyclictest0-21swapper/312:20:013
96453499871,57cyclictest0-21swapper/312:20:013
964528998243,32cyclictest982637-21cut08:50:260
964528997938,37cyclictest1660-21snmpd12:10:150
964528997849,23cyclictest20650irq/252-8000000.ethernet07:15:010
964528997526,40cyclictest0-21swapper/008:10:210
964528997526,40cyclictest0-21swapper/008:10:210
964528997326,40cyclictest0-21swapper/010:15:280
964530997264,5cyclictest0-21swapper/108:50:011
964528997043,22cyclictest20650irq/252-8000000.ethernet12:05:250
964528997030,36cyclictest0-21swapper/010:40:290
964528996942,19cyclictest20650irq/252-8000000.ethernet10:30:040
964528996942,19cyclictest20650irq/252-8000000.ethernet10:30:040
964528996936,29cyclictest0-21swapper/011:05:220
964528996844,20cyclictest20650irq/252-8000000.ethernet07:45:000
964528996837,26cyclictest976967-21grep08:20:000
964532996760,5cyclictest0-21swapper/210:45:012
964528996643,19cyclictest20650irq/252-8000000.ethernet12:30:290
964528996628,34cyclictest0-21swapper/012:15:280
964528996628,34cyclictest0-21swapper/012:15:280
964528996624,38cyclictest1010684-21ptp4l-jitter11:35:270
964528996624,38cyclictest1010684-21ptp4l-jitter11:35:270
964528996543,16cyclictest1004077-21grep10:55:280
964528996543,16cyclictest1004077-21grep10:55:280
964528996542,20cyclictest0-21swapper/007:55:270
964528996542,17cyclictest980290-21sed08:35:290
964528996540,22cyclictest20650irq/252-8000000.ethernet12:00:300
964528996535,26cyclictest0-21swapper/008:45:280
96452899651,24cyclictest0-21swapper/012:35:310
964528996440,19cyclictest20650irq/252-8000000.ethernet11:55:200
964528996434,26cyclictest970016-21latency_hist07:40:000
964528996430,31cyclictest20850irq/208-8000000.ethernet07:50:290
964528996335,25cyclictest991848-21phc2sys09:45:260
964528996335,22cyclictest1013555-21latency_hist11:55:020
964528996335,22cyclictest1013555-21latency_hist11:55:010
964528996323,36cyclictest996187-21sendmail_mailqu10:10:270
964528996238,21cyclictest20650irq/252-8000000.ethernet12:25:240
964528996238,20cyclictest20650irq/252-8000000.ethernet11:15:200
964528996139,18cyclictest20650irq/252-8000000.ethernet11:10:170
964528996133,23cyclictest993160-21latency_hist09:55:010
96452899612,5cyclictest990883-21perl09:40:230
96452899611,4cyclictest990466-21munin-run09:40:000
964528996035,17cyclictest20650irq/252-8000000.ethernet11:00:130
96452899603,11cyclictest979454-21unixbench_singl08:30:290
96452899601,7cyclictest0-21swapper/009:10:010
964528996013,6cyclictest167350irq/118-8000000.ethernet-tx008:05:010
964528995941,15cyclictest20650irq/252-8000000.ethernet11:25:170
964528995941,13cyclictest20650irq/252-8000000.ethernet11:50:010
964528995938,18cyclictest20650irq/252-8000000.ethernet07:15:140
964528995936,18cyclictest0-21swapper/010:30:010
964528995934,22cyclictest0-21swapper/008:40:300
964528995933,23cyclictest0-21swapper/009:30:010
964528995834,20cyclictest0-21swapper/008:25:000
964528995834,20cyclictest0-21swapper/008:25:000
964528995739,15cyclictest20650irq/252-8000000.ethernet09:15:110
964530995645,6cyclictest973395-21munin-plugin-st08:00:001
964530995614,5cyclictest965330-21apt-get07:15:011
964528995633,20cyclictest0-21swapper/009:00:200
96452899561,51cyclictest966822-21df07:20:170
964528995540,12cyclictest20650irq/252-8000000.ethernet09:20:240
964528995539,13cyclictest20650irq/252-8000000.ethernet08:30:010
964528995536,16cyclictest20650irq/252-8000000.ethernet10:10:000
964528995535,16cyclictest0-21swapper/007:35:010
964528995535,16cyclictest0-21swapper/007:35:010
964528995519,32cyclictest0-21swapper/009:55:220
96453099545,18cyclictest24-21ksoftirqd/109:45:201
964528995441,9cyclictest20650irq/252-8000000.ethernet09:00:000
964528995439,12cyclictest20650irq/252-8000000.ethernet10:00:220
964528995433,17cyclictest1000981-21latency_hist10:40:020
96452899543,14cyclictest974699-21grep08:05:210
96452899542,49cyclictest986129-21sed09:10:300
964530995341,5cyclictest231ktimers/109:30:131
964530995211,17cyclictest24-21ksoftirqd/111:35:011
964530995211,17cyclictest24-21ksoftirqd/111:35:011
96452899527,12cyclictest1008096-21/usr/sbin/munin11:20:280
96452899521,3cyclictest0-21swapper/011:40:120
96452899521,2cyclictest0-21swapper/010:50:010
964528995144,4cyclictest0-21swapper/011:30:220
964528995113,6cyclictest971569-21unixbench_singl07:45:290
96452899511,22cyclictest0-21swapper/012:20:130
964530995044,4cyclictest231ktimers/111:15:021
964528995031,15cyclictest0-21swapper/010:20:190
964528995021,4cyclictest20850irq/208-8000000.ethernet07:25:240
964530994943,4cyclictest1660-21snmpd10:20:121
964530994922,7cyclictest22-21rcuc/109:35:191
96453099489,2cyclictest0-21swapper/111:25:011
964530994829,14cyclictest231ktimers/112:20:171
964532994731,8cyclictest0-21swapper/207:20:292
964530994628,12cyclictest231ktimers/107:25:121
964528994639,5cyclictest0-21swapper/009:30:160
964532994536,5cyclictest1004908-21unixbench_multi11:00:282
964532994530,9cyclictest0-21swapper/210:20:032
96453099455,9cyclictest0-21swapper/109:25:011
96453099452,20cyclictest14-21rcu_preempt09:15:011
964532994432,7cyclictest0-21swapper/207:10:282
964532994429,8cyclictest0-21swapper/210:25:012
964532994415,22cyclictest0-21swapper/208:58:222
96453099433,26cyclictest22-21rcuc/108:05:011
964530994328,10cyclictest0-21swapper/108:20:011
964528994327,13cyclictest0-21swapper/007:10:000
96453299424,20cyclictest14-21rcu_preempt08:55:012
964530994223,11cyclictest0-21swapper/107:30:291
964530994223,11cyclictest0-21swapper/107:30:291
964530994132,5cyclictest0-21swapper/107:20:291
964530994123,10cyclictest0-21swapper/110:45:171
964532994032,4cyclictest167550irq/134-8000000.ethernet-tx211:45:302
964532994032,4cyclictest0-21swapper/211:10:002
964532994029,7cyclictest0-21swapper/208:20:002
964532994024,10cyclictest0-21swapper/212:20:212
96453299401,35cyclictest979429-21unixbench_singl08:30:292
964532994012,19cyclictest984763-21/usr/sbin/munin09:05:182
964530994026,9cyclictest0-21swapper/108:10:291
964530994026,9cyclictest0-21swapper/108:10:291
964530994026,10cyclictest0-21swapper/109:50:291
964530994018,20cyclictest22-21rcuc/107:45:191
96453099401,2cyclictest0-21swapper/109:00:011
964530994012,15cyclictest231ktimers/107:40:111
964532993923,9cyclictest966206-21sshd07:15:262
96453299391,32cyclictest0-21swapper/211:40:302
96453299391,29cyclictest0-21swapper/211:55:282
964530993935,2cyclictest0-21swapper/111:45:011
964530993931,5cyclictest14-21rcu_preempt09:15:001
964530993925,10cyclictest0-21swapper/109:30:001
964530993923,9cyclictest996297-21grep10:10:281
964532993831,4cyclictest0-21swapper/208:15:012
964532993831,4cyclictest0-21swapper/208:15:002
964532993829,5cyclictest0-21swapper/208:20:292
964532993829,5cyclictest0-21swapper/208:20:292
964530993829,6cyclictest1020189-21munin-plugin-st12:35:011
964530993824,7cyclictest1021131-21sendmail12:40:001
964532993728,3cyclictest0-21swapper/209:55:002
964532993726,6cyclictest0-21swapper/209:35:292
964532993726,5cyclictest0-21swapper/209:30:312
964532993723,9cyclictest0-21swapper/207:30:222
964532993723,9cyclictest0-21swapper/207:30:212
964532993722,9cyclictest0-21swapper/210:25:252
964532993720,8cyclictest311ktimers/208:45:192
96453299371,28cyclictest973086-21grep07:55:262
96453299371,28cyclictest970725-21unixbench_singl07:40:282
96453099373,7cyclictest24-21ksoftirqd/111:10:011
964530993728,5cyclictest0-21swapper/112:25:291
964530993728,5cyclictest0-21swapper/111:55:011
964530993728,5cyclictest0-21swapper/111:55:001
964530993726,6cyclictest995505-21grep10:05:301
964530993725,9cyclictest984558-21sh09:05:011
964530993724,7cyclictest274-21systemd-journal07:55:001
964530993723,9cyclictest0-21swapper/108:25:021
964530993723,9cyclictest0-21swapper/108:25:011
964530993723,7cyclictest996574-21/usr/sbin/munin10:15:241
96453099372,24cyclictest22-21rcuc/110:40:191
96453099371,30cyclictest0-21swapper/111:45:301
96453299368,11cyclictest973613-21/usr/sbin/munin08:00:192
964532993628,4cyclictest1004146-21latency_hist11:00:012
964532993628,4cyclictest1004146-21latency_hist11:00:012
964532993627,6cyclictest0-21swapper/210:35:282
964532993626,4cyclictest0-21swapper/211:30:202
964532993624,6cyclictest0-21swapper/212:25:202
96453099364,26cyclictest0-21swapper/112:10:301
964530993624,6cyclictest0-21swapper/109:55:221
96453099362,20cyclictest965903-21/usr/sbin/munin07:15:201
964530993613,12cyclictest998363-21/usr/sbin/munin10:25:191
96453099361,12cyclictest0-21swapper/110:05:011
964532993527,4cyclictest167550irq/134-8000000.ethernet-tx207:25:242
964532993526,4cyclictest984462-21grep09:00:282
964532993525,6cyclictest0-21swapper/212:35:052
964532993525,4cyclictest0-21swapper/210:00:222
964532993524,6cyclictest971742-21latency_hist07:50:012
964532993524,6cyclictest0-21swapper/210:50:172
964532993524,4cyclictest0-21swapper/210:00:002
964532993523,8cyclictest0-21swapper/209:15:272
964532993523,8cyclictest0-21swapper/208:05:302
96453299351,28cyclictest1002130-21dropbear10:45:262
964530993520,8cyclictest981144-21head08:40:301
964530993517,5cyclictest995649-21kworker/u8:0+writeback10:40:011
96453099351,4cyclictest0-21swapper/109:10:011
964532993424,5cyclictest0-21swapper/208:45:012
964530993425,4cyclictest14-21rcu_preempt11:15:221
964530993424,7cyclictest979398-21unixbench_multi08:30:291
964530993423,7cyclictest0-21swapper/108:25:291
964532993324,6cyclictest991316-21cron09:45:002
96453299331,27cyclictest0-21swapper/208:35:182
964530993324,5cyclictest0-21swapper/112:05:271
96453299328,12cyclictest0-21swapper/207:55:012
964532993227,2cyclictest0-21swapper/212:30:282
964532993224,4cyclictest0-21swapper/209:15:002
964532993222,6cyclictest1016765-21grep12:10:312
964532993221,8cyclictest0-21swapper/211:40:012
964532993221,8cyclictest0-21swapper/211:40:012
964532993221,8cyclictest0-21swapper/210:30:192
964532993221,8cyclictest0-21swapper/210:30:192
964532993216,10cyclictest0-21swapper/211:25:282
96453299321,4cyclictest0-21swapper/207:40:012
96453299321,26cyclictest0-21swapper/212:00:252
964530993223,6cyclictest0-21swapper/108:45:281
964530993222,6cyclictest999835-21grep10:30:291
964530993222,6cyclictest999835-21grep10:30:291
964530993216,9cyclictest1009478-21dropbear11:30:171
964530993216,10cyclictest231ktimers/108:35:151
96453099321,4cyclictest0-21swapper/109:40:271
964530993214,4cyclictest969914-21kworker/u8:0-ext4-rsv-conversion08:10:011
96453099321,25cyclictest0-21swapper/107:35:171
964532993122,5cyclictest0-21swapper/210:05:282
964532993121,5cyclictest0-21swapper/212:05:202
964532993121,4cyclictest0-21swapper/210:10:252
964530993123,4cyclictest0-21swapper/111:00:261
964530993121,7cyclictest0-21swapper/112:15:191
964530993121,7cyclictest0-21swapper/112:15:191
964532993026,2cyclictest0-21swapper/211:10:282
964532993016,10cyclictest0-21swapper/209:45:202
96453299301,3cyclictest1007528-21munin-run11:20:002
964530993021,7cyclictest0-21swapper/112:00:001
964530992914,8cyclictest0-21swapper/111:00:011
964530992914,8cyclictest0-21swapper/111:00:011
96453299283,8cyclictest1007740-21/usr/sbin/munin11:20:192
964532992818,7cyclictest311ktimers/208:25:282
964532992817,7cyclictest0-21swapper/207:10:002
96453299263,5cyclictest832-21systemd-network11:50:232
96453299263,5cyclictest832-21systemd-network11:50:232
964532992616,8cyclictest311ktimers/212:15:172
964532992616,8cyclictest311ktimers/212:15:172
964530992620,3cyclictest964539-21latency_hist07:10:001
964530992618,5cyclictest0-21swapper/111:30:011
964532992517,6cyclictest311ktimers/209:25:162
964532992515,6cyclictest0-21swapper/209:20:202
96453099251,2cyclictest0-21swapper/112:00:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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