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2026-02-12 - 17:53
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #3

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack9slot3s.osadl.org (updated Thu Feb 12, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591710,50ptp4l0-21swapper/107:05:191
1300915949,8phc2sys0-21swapper/007:09:490
2778125046,2sleep20-21swapper/207:08:352
2758724942,2sleep30-21swapper/307:06:033
308332470,1sleep030830-21perf08:15:020
119591460,31ptp4l0-21swapper/107:10:021
119591290,0ptp4l0-21swapper/111:30:241
2815299230,0cyclictest0-21swapper/009:30:130
2815299212,18cyclictest25431-21apt-get09:05:110
2815299200,19cyclictest0-21swapper/012:00:120
119591190,0ptp4l0-21swapper/111:35:191
119591180,0ptp4l2815299cyclictest09:00:220
119591180,0ptp4l0-21swapper/212:30:192
119591180,0ptp4l0-21swapper/109:40:151
2815299171,15cyclictest0-21swapper/008:05:170
119591170,0ptp4l0-21swapper/110:20:161
119591170,0ptp4l0-21swapper/108:00:111
28155991614,1cyclictest41-21ksoftirqd/312:25:233
119591160,1ptp4l27986-21apt-get10:10:120
119591160,0ptp4l0-21swapper/211:05:182
119591160,0ptp4l0-21swapper/108:45:321
119591160,0ptp4l0-21swapper/108:30:121
28154991514,0cyclictest33-21ksoftirqd/209:10:172
119591150,1ptp4l7575-21ls11:30:220
119591150,1ptp4l26161-21snmp_o5powerctl12:05:220
119591150,1ptp4l24350-21snmp_o5powerctl10:00:211
119591150,1ptp4l20766-21ls10:55:181
119591150,1ptp4l15328-21snmp_o5powerctl11:45:231
119591150,1ptp4l14813-21apt-get08:45:142
119591150,0ptp4l19167-21apt-get11:55:140
119591150,0ptp4l17360-21apt-get09:50:131
119591150,0ptp4l0-21swapper/112:35:131
119591150,0ptp4l0-21swapper/111:55:221
119591150,0ptp4l0-21swapper/109:15:231
119591150,0ptp4l0-21swapper/011:10:130
119591150,0ptp4l0-21swapper/009:20:220
119591150,0ptp4l0-21swapper/008:15:120
119591150,0ptp4l0-21swapper/007:45:120
49942140,0sleep24996-21grep11:25:242
28154991413,1cyclictest33-21ksoftirqd/212:25:232
119591140,1ptp4l8728-21cut10:35:000
119591140,1ptp4l8274-21irqstats07:30:180
119591140,1ptp4l7595-21ntp_states10:30:181
119591140,1ptp4l6630-21apt-get08:30:120
119591140,1ptp4l6192-21snmp_o5powerctl07:25:220
119591140,1ptp4l6151-21gpgv09:30:011
119591140,1ptp4l6135-21cat09:30:010
119591140,1ptp4l6052-21hddtemp_smartct12:30:151
119591140,1ptp4l5423-21wc10:25:240
119591140,1ptp4l31559-21ls12:15:231
119591140,1ptp4l31223-21kworker/1:111:20:251
119591140,1ptp4l30712-21sed07:15:010
119591140,1ptp4l3061-21telnet11:25:130
119591140,1ptp4l29831-21aten2.4-expect12:15:120
119591140,1ptp4l29204-21irqstats09:10:171
119591140,1ptp4l28674-21hddtemp_smartct10:10:141
119591140,1ptp4l22586-21expr11:00:130
119591140,1ptp4l20656-21fschecks_time08:55:160
119591140,1ptp4l19946-21df10:55:150
119591140,1ptp4l19132-21snmp_o5powerctl08:50:221
119591140,1ptp4l18248-21df07:50:130
119591140,1ptp4l16987-21df_inode11:50:150
119591140,1ptp4l1606-21perf07:20:010
119591140,1ptp4l14937-21ls11:45:180
119591140,1ptp4l11914-21cstates10:40:111
119591140,0ptp4l18499-21snmp_o5powerctl10:50:211
119591140,0ptp4l0-21swapper/208:25:232
119591140,0ptp4l0-21swapper/112:06:081
119591140,0ptp4l0-21swapper/111:29:281
119591140,0ptp4l0-21swapper/111:10:221
119591140,0ptp4l0-21swapper/111:05:261
119591140,0ptp4l0-21swapper/110:35:071
119591140,0ptp4l0-21swapper/110:25:101
119591140,0ptp4l0-21swapper/109:45:211
119591140,0ptp4l0-21swapper/109:05:121
119591140,0ptp4l0-21swapper/108:15:161
119591140,0ptp4l0-21swapper/108:14:001
119591140,0ptp4l0-21swapper/107:30:221
119591140,0ptp4l0-21swapper/012:35:130
119591140,0ptp4l0-21swapper/012:30:110
119591140,0ptp4l0-21swapper/012:20:120
119591140,0ptp4l0-21swapper/011:36:010
119591140,0ptp4l0-21swapper/011:15:100
119591140,0ptp4l0-21swapper/010:00:110
119591140,0ptp4l0-21swapper/009:50:120
119591140,0ptp4l0-21swapper/009:40:130
119591140,0ptp4l0-21swapper/009:15:230
119591140,0ptp4l0-21swapper/008:50:120
119591130,2ptp4l0-21swapper/209:16:382
119591130,1ptp4l12571-21aten_r9power_po07:40:150
119591130,0ptp4l30112-21apt-get11:15:111
119591130,0ptp4l0-21swapper/212:05:152
119591130,0ptp4l0-21swapper/210:55:212
119591130,0ptp4l0-21swapper/210:03:522
119591130,0ptp4l0-21swapper/209:55:222
119591130,0ptp4l0-21swapper/209:05:152
119591130,0ptp4l0-21swapper/207:40:212
119591130,0ptp4l0-21swapper/207:25:192
119591130,0ptp4l0-21swapper/207:20:252
119591130,0ptp4l0-21swapper/207:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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