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2026-05-27 - 19:38

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 Wed May 27, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1699305998115,32cyclictest311ktimers/208:15:182
1699302998074,3cyclictest1743931-21cmp11:30:010
169930299751,66cyclictest1723111-21fschecks_time09:25:220
169930299722,62cyclictest1712054-21wc08:20:260
1699302997029,32cyclictest20650irq/252-8000000.ethernet10:20:270
1699302997028,36cyclictest1754859-21grep12:30:290
1699302996832,32cyclictest20650irq/252-8000000.ethernet11:15:250
1699302996827,38cyclictest0-21swapper/009:30:280
1699302996733,28cyclictest167350irq/118-8000000.ethernet-tx010:25:230
1699302996622,37cyclictest1752326-21users12:15:290
169930299661,6cyclictest1699368-21latency_hist07:10:010
169930299661,51cyclictest0-21swapper/009:15:100
169930299661,3cyclictest1751130-21irqstats12:10:230
1699302996425,35cyclictest1752670-21cut12:20:190
169930299633,4cyclictest1745307-21phc2sys-jitter11:35:250
1699302996235,23cyclictest167350irq/118-8000000.ethernet-tx007:55:270
1699302996233,24cyclictest20650irq/252-8000000.ethernet08:30:010
1699305996155,3cyclictest1700086-21kworker/u8:0-ext4-rsv-conversion08:05:012
169930299612,4cyclictest1725310-21latency_hist09:40:010
1699302996122,31cyclictest1730580-21df_inode10:10:150
169930299612,14cyclictest1700106-21latency_hist07:15:010
169930299612,14cyclictest1700106-21latency_hist07:15:000
1699302996030,26cyclictest20650irq/252-8000000.ethernet09:25:010
1699302996028,28cyclictest20650irq/252-8000000.ethernet07:25:240
169930299602,55cyclictest0-21swapper/010:30:240
169930299602,10cyclictest1746074-21/usr/sbin/munin11:40:220
169930299598,4cyclictest131ktimers/007:20:230
1699302995931,25cyclictest1715684-21grep08:40:280
169930299592,4cyclictest1716687-21head08:45:290
1699302995916,38cyclictest0-21swapper/012:30:010
1699302995916,38cyclictest0-21swapper/012:30:010
1699302995834,20cyclictest1728535-21grep09:55:290
1699302995731,24cyclictest167350irq/118-8000000.ethernet-tx007:15:220
1699302995730,24cyclictest20850irq/208-8000000.ethernet10:55:280
1699302995720,33cyclictest0-21swapper/008:55:210
169930299571,15cyclictest1704838-21apt-get07:40:150
1699302995631,22cyclictest20850irq/208-8000000.ethernet11:20:200
1699302995627,26cyclictest1727770-21cron09:55:000
1699302995623,29cyclictest1706973-21grep07:50:250
169930299562,14cyclictest1750614-21grep12:05:290
1699302995621,32cyclictest1703199-21ssh07:30:170
169930299561,49cyclictest1713161-21apt-get08:30:040
1699302995527,24cyclictest20650irq/252-8000000.ethernet08:35:250
1699302995523,28cyclictest20650irq/252-8000000.ethernet11:55:170
169930299552,10cyclictest1708853-21grep08:00:300
1699302995514,37cyclictest0-21swapper/007:45:280
169930599541,32cyclictest311ktimers/212:30:022
169930599541,32cyclictest311ktimers/212:30:012
169930299544,44cyclictest1731957-21grep10:15:270
169930299543,47cyclictest0-21swapper/008:10:250
1699302995433,16cyclictest1720890-21grep09:10:290
1699302995429,21cyclictest20650irq/252-8000000.ethernet12:35:170
1699302995429,21cyclictest20650irq/252-8000000.ethernet09:00:180
1699302995429,21cyclictest20650irq/252-8000000.ethernet09:00:180
1699302995428,22cyclictest20650irq/252-8000000.ethernet10:45:200
1699302995428,22cyclictest20650irq/252-8000000.ethernet10:45:200
1699302995427,23cyclictest20650irq/252-8000000.ethernet10:50:150
169930299534,44cyclictest1728951-21grep10:00:190
169930299533,4cyclictest1730279-21grep10:05:280
1699302995325,24cyclictest0-21swapper/011:45:180
1699302995325,24cyclictest0-21swapper/011:45:180
169930299531,9cyclictest1704403-21/usr/sbin/munin07:35:270
169930299531,9cyclictest1704403-21/usr/sbin/munin07:35:270
1699302995318,32cyclictest1744382-21sshd11:30:230
169930299531,49cyclictest1711305-21/usr/sbin/munin08:15:270
1699305995238,9cyclictest0-21swapper/211:55:282
169930299523,12cyclictest1726032-21grep09:40:270
169930299522,6cyclictest1747920-21/usr/sbin/munin11:50:260
169930299522,10cyclictest1735218-21/usr/sbin/munin10:35:280
169930299512,6cyclictest1736128-21grep10:40:270
169930299511,9cyclictest1740530-21latency_hist11:10:000
169930299511,3cyclictest1719527-21diskstats09:05:170
1699305995036,10cyclictest0-21swapper/208:40:002
1699302995019,27cyclictest0-21swapper/011:00:270
169930299501,8cyclictest1741212-21/usr/sbin/munin11:10:280
1699303994941,4cyclictest1702939-21munin-plugin-st07:30:011
1699302994910,32cyclictest0-21swapper/008:50:280
1699305994831,12cyclictest0-21swapper/208:45:012
169930299481,6cyclictest1726647-21tail09:45:250
169930299481,5cyclictest1749456-21sshd12:00:220
1699305994740,4cyclictest1703780-21munin-plugin-st07:35:002
169930299473,4cyclictest1709499-21/usr/sbin/munin08:05:260
169930299473,4cyclictest1709499-21/usr/sbin/munin08:05:260
1699305994629,9cyclictest1283-21cron07:50:002
1699305994624,16cyclictest311ktimers/209:20:132
1699303994619,4cyclictest22-21rcuc/107:10:251
1699303994619,4cyclictest22-21rcuc/107:10:251
169930599457,19cyclictest0-21swapper/207:15:012
169930599457,19cyclictest0-21swapper/207:15:012
1699305994535,6cyclictest1750568-21grep12:05:282
1699305994531,10cyclictest0-21swapper/210:20:282
1699303994536,6cyclictest1737905-21cron10:55:001
1699303994536,4cyclictest0-21swapper/109:25:011
1699303994535,6cyclictest1749719-21grep12:00:271
1699305994435,6cyclictest0-21swapper/208:55:302
1699305994430,7cyclictest0-21swapper/207:55:312
1699305994428,11cyclictest311ktimers/210:40:102
1699305994426,9cyclictest0-21swapper/208:30:012
1699303994429,10cyclictest0-21swapper/112:30:201
1699305994334,5cyclictest1705569-21apt-key07:45:002
1699305994332,8cyclictest0-21swapper/210:00:002
1699305994321,14cyclictest311ktimers/211:45:112
1699305994321,14cyclictest311ktimers/211:45:102
1699303994335,5cyclictest1746460-21munin-plugin-st11:45:001
1699305994235,4cyclictest1755740-21sendmail12:40:002
1699305994234,5cyclictest1720089-21cron09:10:002
1699305994231,7cyclictest0-21swapper/209:30:282
1699305994217,13cyclictest311ktimers/207:50:122
1699303994227,10cyclictest0-21swapper/108:50:271
1699303994224,10cyclictest0-21swapper/111:55:261
1699305994133,5cyclictest0-21swapper/210:10:182
1699305994128,8cyclictest0-21swapper/211:35:282
1699305994126,11cyclictest311ktimers/209:35:112
1699305994118,13cyclictest311ktimers/207:15:122
1699303994134,4cyclictest1725237-21cron09:40:001
1699303994129,6cyclictest0-21swapper/111:35:251
1699303994128,7cyclictest0-21swapper/108:40:201
1699303994124,11cyclictest0-21swapper/109:00:301
1699303994124,11cyclictest0-21swapper/109:00:301
1699305994032,4cyclictest0-21swapper/211:40:282
1699305994028,7cyclictest1720937-21munin-plugin-st09:15:002
1699303994031,5cyclictest1731092-21grep10:10:261
1699303994031,5cyclictest0-21swapper/111:50:271
1699303994026,9cyclictest1713266-21latency_hist08:30:011
1699303994025,8cyclictest0-21swapper/108:30:291
1699305993928,8cyclictest0-21swapper/209:25:292
1699305993926,8cyclictest0-21swapper/208:20:282
1699305993923,10cyclictest0-21swapper/209:45:282
1699303993930,5cyclictest1712326-21munin-plugin-st08:24:591
1699303993930,5cyclictest0-21swapper/108:20:001
1699303993928,6cyclictest1704521-21grep07:35:291
1699303993928,6cyclictest1704521-21grep07:35:281
1699303993926,9cyclictest0-21swapper/112:25:281
1699303993926,9cyclictest0-21swapper/112:25:281
1699305993822,9cyclictest0-21swapper/207:20:272
1699305993810,11cyclictest1709141-21/usr/sbin/munin08:05:192
1699305993810,11cyclictest1709141-21/usr/sbin/munin08:05:192
1699303993829,5cyclictest0-21swapper/109:10:001
1699303993826,8cyclictest0-21swapper/110:15:251
1699303993825,8cyclictest0-21swapper/107:40:281
1699303993825,6cyclictest0-21swapper/109:25:301
1699303993824,8cyclictest0-21swapper/111:25:011
1699303993823,9cyclictest1742136-21sendmail11:20:001
169930399382,28cyclictest0-21swapper/108:05:001
1699303993814,18cyclictest2-21kthreadd09:14:251
1699305993726,7cyclictest0-21swapper/209:40:272
1699305993724,8cyclictest0-21swapper/212:20:282
1699305993724,8cyclictest0-21swapper/208:10:272
169930599371,30cyclictest1733053-21/usr/sbin/munin10:25:112
1699303993730,4cyclictest1734536-21munin-plugin-st10:35:001
1699303993728,5cyclictest0-21swapper/109:45:001
1699303993725,8cyclictest1708094-21sendmail08:00:011
1699305993628,4cyclictest0-21swapper/211:10:282
1699305993627,6cyclictest0-21swapper/211:00:002
1699305993625,5cyclictest0-21swapper/211:50:282
1699305993624,8cyclictest0-21swapper/212:00:202
1699305993623,9cyclictest0-21swapper/212:15:272
1699305993621,10cyclictest0-21swapper/211:20:282
1699303993628,4cyclictest231ktimers/112:05:291
1699303993626,5cyclictest0-21swapper/107:30:201
169930599351,27cyclictest1744001-21latency_hist11:30:012
169930399354,25cyclictest22-21rcuc/108:10:261
169930399353,27cyclictest22-21rcuc/107:50:191
1699303993528,4cyclictest231ktimers/110:45:111
1699303993528,4cyclictest231ktimers/110:45:101
1699303993525,7cyclictest1752351-21cron12:20:001
1699303993524,8cyclictest231ktimers/110:20:251
1699303993524,6cyclictest231ktimers/108:55:251
1699303993524,6cyclictest0-21swapper/111:45:251
1699303993524,6cyclictest0-21swapper/111:45:251
1699303993523,9cyclictest0-21swapper/107:15:181
1699303993523,8cyclictest0-21swapper/111:10:281
1699303993522,7cyclictest1728547-21grep09:55:291
1699303993522,7cyclictest0-21swapper/107:48:241
1699305993425,4cyclictest0-21swapper/211:15:192
1699305993424,6cyclictest0-21swapper/210:50:272
169930599341,23cyclictest311ktimers/208:35:002
169930399344,24cyclictest0-21swapper/111:05:161
1699303993426,5cyclictest231ktimers/107:20:261
1699303993426,4cyclictest0-21swapper/110:25:281
1699303993423,5cyclictest231ktimers/112:20:201
169930399341,28cyclictest0-21swapper/111:25:201
169930399341,27cyclictest1729674-21/usr/sbin/munin10:05:161
1699303993410,13cyclictest1699296-21cyclictest09:15:101
1699305993325,4cyclictest0-21swapper/207:35:272
1699305993325,4cyclictest0-21swapper/207:35:272
1699305993322,7cyclictest0-21swapper/209:15:272
1699303993328,2cyclictest0-21swapper/110:00:271
1699303993326,5cyclictest231ktimers/108:05:131
1699303993326,5cyclictest231ktimers/108:05:131
169930399332,25cyclictest0-21swapper/108:35:221
1699303993319,9cyclictest1716079-21/usr/sbin/munin08:45:181
1699305993222,6cyclictest0-21swapper/211:00:272
1699305993222,5cyclictest0-21swapper/210:15:252
1699303993225,5cyclictest231ktimers/112:15:001
1699303993225,4cyclictest1699296-21cyclictest11:30:261
1699303993224,6cyclictest231ktimers/109:50:131
1699303993224,5cyclictest231ktimers/110:55:171
1699303993224,5cyclictest231ktimers/110:40:241
169930399322,26cyclictest2-21kthreadd10:36:201
1699303993221,6cyclictest0-21swapper/111:05:001
169930399321,26cyclictest0-21swapper/109:45:221
1699305993124,4cyclictest0-21swapper/212:10:272
1699305993123,5cyclictest0-21swapper/210:05:272
1699305993122,4cyclictest0-21swapper/211:05:262
1699305993122,4cyclictest0-21swapper/208:50:012
1699303993123,4cyclictest0-21swapper/109:30:261
1699305993018,10cyclictest311ktimers/210:45:132
1699305993018,10cyclictest311ktimers/210:45:132
169930599301,27cyclictest0-21swapper/207:25:172
1699305993012,4cyclictest8321systemd-network09:51:162
1699305992921,5cyclictest1734465-21grep10:30:272
1699305992919,7cyclictest0-21swapper/210:35:292
1699305992919,7cyclictest0-21swapper/210:00:282
1699305992822,4cyclictest0-21swapper/208:55:012
1699305992816,6cyclictest0-21swapper/207:10:012
1699303992816,5cyclictest0-21swapper/112:40:011
1699305992719,6cyclictest1754252-21/usr/sbin/munin12:30:272
1699305992716,8cyclictest311ktimers/211:30:112
1699305992517,6cyclictest0-21swapper/209:05:012
1699305992517,6cyclictest0-21swapper/209:05:002
1699303992316,5cyclictest22-21rcuc/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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