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2026-07-05 - 01:38

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 all highest latencies:
System rackeslot6s.osadl.org (updated Sat Jul 04, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1698351999875,20cyclictest391ktimers/310:55:013
1698349997513,22cyclictest1750760-21/usr/sbin/munin12:15:182
1698349997513,22cyclictest1750760-21/usr/sbin/munin12:15:182
1698349996734,27cyclictest0-21swapper/212:05:012
169834699667,19cyclictest1703652-21apt-get07:40:021
169834699667,19cyclictest1703652-21apt-get07:40:011
169834999625,46cyclictest1712145-21grep08:25:292
1698349996122,32cyclictest0-21swapper/207:10:332
1698349996121,33cyclictest0-21swapper/209:50:282
1698349996121,33cyclictest0-21swapper/209:50:282
1698349996024,30cyclictest0-21swapper/208:40:302
169834999574,43cyclictest0-21swapper/211:50:212
1698349995732,19cyclictest0-21swapper/211:45:292
169834999573,11cyclictest1735842-21grep10:45:292
169834999572,46cyclictest1716321-21grep08:50:292
1698349995615,33cyclictest0-21swapper/211:20:002
1698349995614,34cyclictest0-21swapper/212:10:222
169834699562,38cyclictest22-21rcuc/107:55:011
1698345995645,9cyclictest1747938-21sendmail12:00:000
169834999553,44cyclictest1702770-21unixbench_singl07:30:282
1698349995513,34cyclictest0-21swapper/210:10:282
169834999543,39cyclictest1751957-21phc2sys12:20:252
1698349995414,25cyclictest1742772-21kworker/u8:4+flush-179:9611:40:052
1698345995432,19cyclictest0-21swapper/009:20:190
169834999538,36cyclictest0-21swapper/208:35:262
169834999538,35cyclictest0-21swapper/211:25:022
169834999534,38cyclictest1707113-21cron08:00:002
169834999533,42cyclictest1700166-21sed07:15:302
169834999532,5cyclictest1724848-21users09:40:292
1698349995323,25cyclictest1719708-21grep09:10:292
1698349995323,25cyclictest1719708-21grep09:10:292
1698349995322,28cyclictest0-21swapper/210:15:122
169834999531,9cyclictest1729055-21/usr/sbin/munin10:05:282
1698349995317,29cyclictest0-21swapper/209:25:192
1698349995315,29cyclictest0-21swapper/207:40:232
1698349995315,29cyclictest0-21swapper/207:40:232
1698345995340,10cyclictest1717259-21sendmail09:00:000
169834999529,34cyclictest0-21swapper/210:20:282
169834999525,37cyclictest0-21swapper/212:35:282
169834999525,37cyclictest0-21swapper/212:35:282
169834999524,38cyclictest0-21swapper/210:30:192
169834999524,38cyclictest0-21swapper/210:30:192
169834999523,39cyclictest1707860-21grep08:00:312
169834999522,7cyclictest1725588-21/usr/sbin/munin09:45:272
1698349995221,24cyclictest0-21swapper/208:05:282
1698349995218,27cyclictest0-21swapper/209:35:282
1698345995247,4cyclictest0-21swapper/007:50:190
1698345995244,5cyclictest1729183-21munin-plugin-st10:10:000
169834999516,36cyclictest0-21swapper/211:35:292
169834999515,38cyclictest1706221-21grep07:50:282
169834999515,37cyclictest0-21swapper/210:00:252
169834999515,35cyclictest1718028-21grep09:00:292
169834999514,38cyclictest1737543-21grep10:55:292
169834999513,38cyclictest1753014-21grep12:25:302
169834999512,40cyclictest1739225-21grep11:05:292
169834999511,8cyclictest1736464-21/usr/sbin/munin10:50:252
1698349995117,25cyclictest0-21swapper/208:10:272
1698349995115,28cyclictest0-21swapper/208:30:312
169834999511,44cyclictest0-21swapper/211:25:282
169834599512,45cyclictest1720167-21lsblk09:15:200
169834999505,37cyclictest1703616-21unixbench_singl07:35:292
169834999505,37cyclictest1703616-21unixbench_singl07:35:292
169834999504,37cyclictest0-21swapper/210:25:292
169834999503,14cyclictest1722969-21cut09:30:272
1698349995027,17cyclictest0-21swapper/207:45:212
1698349995020,22cyclictest0-21swapper/209:05:262
169834999501,5cyclictest1710952-21/usr/sbin/munin08:20:242
169834999501,10cyclictest1749480-21/usr/sbin/munin12:05:262
169834999498,35cyclictest0-21swapper/208:20:012
169834999495,36cyclictest1720535-21grep09:15:272
169834999493,4cyclictest1738255-21ptp4l11:00:272
169834999493,4cyclictest1721187-21phc2sys09:20:262
1698349994925,19cyclictest0-21swapper/211:10:232
169834999491,9cyclictest1715346-21cut08:45:272
169834999491,9cyclictest1715346-21cut08:45:262
169834999491,11cyclictest1700826-21tail07:20:252
169834599494,9cyclictest0-21swapper/011:05:010
169834999483,37cyclictest1717135-21grep08:55:292
169834999482,5cyclictest1753371-21diskstats12:30:182
169834999482,40cyclictest1701923-21unixbench_singl07:25:302
169834999482,40cyclictest1701923-21unixbench_singl07:25:302
169834999481,9cyclictest1747733-21/usr/sbin/munin11:55:292
169834999481,8cyclictest1734762-21/usr/sbin/munin10:40:252
169834999481,4cyclictest1734060-21/usr/sbin/munin10:35:292
169834999472,38cyclictest1727382-21grep09:55:292
1698345994741,4cyclictest1713881-21sendmail08:40:010
1698345994739,4cyclictest167350irq/118-8000000.ethernet-tx010:25:280
169834599464,5cyclictest0-21swapper/009:35:010
1698345994639,4cyclictest167350irq/118-8000000.ethernet-tx011:20:210
1698345994639,4cyclictest167350irq/118-8000000.ethernet-tx007:20:270
169834599462,6cyclictest0-21swapper/007:35:150
169834599462,6cyclictest0-21swapper/007:35:150
169834599462,40cyclictest1715932-21lsblk08:50:210
169834999451,7cyclictest1743055-21df_inode11:30:182
1698346994532,8cyclictest0-21swapper/110:50:281
1698345994531,10cyclictest0-21swapper/012:05:010
169834599452,40cyclictest1727284-21rt-features09:55:270
1698346994431,8cyclictest0-21swapper/108:20:301
1698346994429,11cyclictest1734247-21sendmail10:40:001
1698345994337,3cyclictest167350irq/118-8000000.ethernet-tx012:15:120
1698345994337,3cyclictest167350irq/118-8000000.ethernet-tx012:15:120
1698345994327,14cyclictest167350irq/118-8000000.ethernet-tx007:58:430
1698346994229,9cyclictest0-21swapper/112:05:281
1698346994229,8cyclictest0-21swapper/112:35:281
1698346994229,8cyclictest0-21swapper/112:35:281
1698346994228,9cyclictest0-21swapper/107:30:281
1698346994225,12cyclictest0-21swapper/109:25:271
169834599423,4cyclictest1719980-21cut09:15:030
169834599423,4cyclictest1719980-21cut09:15:030
169834599423,4cyclictest1707575-21/usr/sbin/munin08:00:220
1698345994232,7cyclictest0-21swapper/010:45:000
1698345994229,9cyclictest0-21swapper/011:45:000
1698345994228,9cyclictest0-21swapper/009:45:010
169834599422,5cyclictest1732944-21perl10:30:210
169834599422,5cyclictest1732944-21perl10:30:210
169834599422,37cyclictest1712930-21sed08:30:300
169834599421,6cyclictest1740664-21meminfo11:15:250
169834599421,5cyclictest1751924-21memory12:20:240
169834999412,5cyclictest1698358-21latency_hist07:10:002
1698346994127,9cyclictest0-21swapper/109:00:291
1698346994126,9cyclictest0-21swapper/108:10:181
1698345994133,4cyclictest1739762-21/usr/sbin/munin11:10:220
169834599412,4cyclictest1729448-21df_inode10:10:170
1698345994124,15cyclictest0-21swapper/010:45:220
169834599412,37cyclictest0-21swapper/009:45:220
169834599411,4cyclictest0-21swapper/007:25:170
169834599411,4cyclictest0-21swapper/007:25:170
1698346994030,5cyclictest0-21swapper/111:40:181
1698346994027,8cyclictest0-21swapper/110:45:291
1698345994035,2cyclictest0-21swapper/010:55:000
1698345994034,4cyclictest1714734-21munin-plugin-st08:45:000
1698345994031,6cyclictest1709658-21munin-plugin-st08:15:000
1698345994023,15cyclictest0-21swapper/007:40:170
1698345994023,15cyclictest0-21swapper/007:40:170
169834599401,4cyclictest1708244-21df_inode08:05:180
1698346993930,5cyclictest1727386-21grep09:55:291
1698346993930,4cyclictest1727873-21fschecks_time10:00:181
1698346993926,8cyclictest0-21swapper/107:45:291
1698346993922,10cyclictest0-21swapper/112:30:281
1698345993932,4cyclictest0-21swapper/012:35:220
1698345993932,4cyclictest0-21swapper/012:35:220
1698345993932,4cyclictest0-21swapper/008:20:190
1698345993923,14cyclictest0-21swapper/012:10:000
1698345993922,15cyclictest0-21swapper/007:10:360
169834599391,4cyclictest1730367-21ssh10:15:200
169834599391,4cyclictest1724020-21munin-run09:40:000
169834599391,4cyclictest1715302-21ps08:45:270
169834599391,4cyclictest1715302-21ps08:45:270
169834599391,36cyclictest0-21swapper/011:35:140
169834599391,32cyclictest0-21swapper/008:30:010
1698346993828,6cyclictest1739288-21grep11:05:291
1698346993826,8cyclictest0-21swapper/111:40:021
1698346993826,6cyclictest0-21swapper/107:20:261
1698346993825,8cyclictest0-21swapper/112:20:281
1698346993824,9cyclictest1721389-21grep09:20:291
1698346993824,8cyclictest1730768-21grep10:15:291
1698346993823,9cyclictest0-21swapper/109:45:011
1698346993823,11cyclictest231ktimers/108:45:121
1698346993823,11cyclictest231ktimers/108:45:121
1698346993822,8cyclictest0-21swapper/110:20:271
1698346993822,8cyclictest0-21swapper/110:10:281
169834699381,28cyclictest0-21swapper/111:15:271
1698345993833,3cyclictest167350irq/118-8000000.ethernet-tx007:45:150
1698345993830,5cyclictest1753501-21fw_packets12:30:210
169834599381,4cyclictest1710115-21irqstats08:15:240
169834599381,3cyclictest1745784-21tune2fs11:45:220
169834599381,3cyclictest1733906-21meminfo10:35:260
169834599381,35cyclictest0-21swapper/012:12:490
169834599381,35cyclictest0-21swapper/009:25:210
169834599381,35cyclictest0-21swapper/009:00:210
169834599381,35cyclictest0-21swapper/007:34:050
169834599381,2cyclictest0-21swapper/010:20:250
1698346993729,4cyclictest0-21swapper/111:50:281
1698346993725,8cyclictest0-21swapper/112:00:291
1698346993725,7cyclictest1720524-21grep09:15:271
1698346993724,8cyclictest0-21swapper/111:25:021
1698346993721,11cyclictest0-21swapper/111:25:301
169834699371,2cyclictest0-21swapper/110:45:011
1698345993731,4cyclictest0-21swapper/007:15:250
1698345993730,3cyclictest1743253-21uname11:30:240
1698345993730,3cyclictest0-21swapper/011:25:040
1698346993623,9cyclictest0-21swapper/109:50:281
1698346993623,9cyclictest0-21swapper/109:50:281
1698346993621,7cyclictest0-21swapper/111:45:291
169834699361,3cyclictest0-21swapper/112:20:021
169834699361,3cyclictest0-21swapper/112:20:011
1698345993629,4cyclictest0-21swapper/009:54:430
1698345993629,4cyclictest0-21swapper/009:54:430
169834599361,33cyclictest0-21swapper/011:05:430
1698346993524,7cyclictest0-21swapper/108:40:301
1698346993523,8cyclictest0-21swapper/107:25:301
1698346993523,8cyclictest0-21swapper/107:25:301
1698346993523,7cyclictest0-21swapper/110:55:291
1698346993523,7cyclictest0-21swapper/108:00:311
1698346993522,9cyclictest0-21swapper/109:45:281
1698346993521,9cyclictest0-21swapper/108:15:281
1698345993528,4cyclictest0-21swapper/011:50:110
169834599351,32cyclictest0-21swapper/012:29:310
169834599351,2cyclictest0-21swapper/007:10:000
1698346993424,6cyclictest1716328-21grep08:50:291
1698346993423,6cyclictest0-21swapper/112:25:181
1698346993422,8cyclictest0-21swapper/110:25:311
1698346993421,8cyclictest0-21swapper/108:55:281
1698346993421,7cyclictest0-21swapper/112:10:281
1698346993419,9cyclictest0-21swapper/108:05:191
1698346993417,14cyclictest0-21swapper/111:30:201
1698345993428,4cyclictest0-21swapper/010:01:510
1698345993427,4cyclictest0-21swapper/009:05:170
169834699332,7cyclictest22-21rcuc/111:55:131
1698346993326,4cyclictest167450irq/126-8000000.ethernet-tx109:35:111
1698346993322,8cyclictest0-21swapper/107:10:351
1698346993322,5cyclictest1719745-21grep09:10:291
1698346993322,5cyclictest1719745-21grep09:10:291
1698346993318,9cyclictest0-21swapper/110:30:291
1698346993318,9cyclictest0-21swapper/110:30:291
169834699331,30cyclictest0-21swapper/107:35:281
169834699331,30cyclictest0-21swapper/107:35:281
169834699331,27cyclictest0-21swapper/108:35:271
169834699331,26cyclictest0-21swapper/107:15:281
1698345993326,5cyclictest131ktimers/010:55:230
169834699313,25cyclictest0-21swapper/108:30:291
1698346993121,5cyclictest0-21swapper/109:30:201
1698346993117,9cyclictest0-21swapper/110:05:211
1698346993021,4cyclictest0-21swapper/107:55:201
1698346992924,2cyclictest0-21swapper/109:05:161
1698346992719,6cyclictest0-21swapper/111:00:201
1698346992719,4cyclictest0-21swapper/111:10:201
1698346992620,3cyclictest1698355-21latency_hist07:09:591
169834699261,23cyclictest0-21swapper/108:29:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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