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2026-02-23 - 02:37
[ 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 #b, slot #7

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.

Note that this system runs a non-RT kernel.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot7s.osadl.org (updated Sun Feb 22, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301442123610,1210sleep330146-21diskstats09:34:403
25891259217,558sleep226012-21latency_hist11:04:212
253132504411,73sleep225373-21sendmail_mailqu07:34:492
28272233311,268sleep213441-21snmpd09:29:222
31002231022,191sleep231029-21munin-plugin-st07:54:202
12347230118,35sleep10-21swapper/112:04:211
5184225315,188sleep20-21swapper/211:39:512
140802236116,78sleep214261-21latency_hist12:09:222
11856223423,97sleep20-21swapper/210:19:322
22912222419,112sleep223065-21unixbench_singl12:34:552
22912222419,112sleep223065-21unixbench_singl12:34:552
30612221915,188sleep230679-21switchtime09:34:512
26678221431,133sleep226696-21kernelversion07:39:422
18082221241,112sleep20-21swapper/210:39:302
2426220719,172sleep32433-21ntp_states08:04:473
20918220636,150sleep220929-21modprobe10:49:192
3519218918,153sleep13508-21apt-get08:09:371
2428721858,164sleep224295-21ntpq09:14:482
1605121857,135sleep216136-21grep12:14:402
1349721828,125sleep213621-21sed08:39:512
11121217810,156sleep211173-21fschecks_count11:59:382
10156217610,109sleep210200-21ntpq08:29:462
1938217416,141sleep12020-21mailstats11:29:491
413121726,127sleep00-21swapper/008:09:530
1498221717,54sleep20-21swapper/210:29:372
19113217045,102sleep20-21swapper/207:14:512
19113217045,102sleep20-21swapper/207:14:512
16602217026,88sleep216712-21timerandwakeup08:49:532
10034216310,116sleep210112-21ls11:54:492
908221530,15sleep212-21rcu_sched10:09:422
908221530,15sleep212-21rcu_sched10:09:422
13936215210,85sleep214014-21mailstats10:24:492
22438215021,113sleep322498-21idleruntime09:09:403
3597214715,73sleep23609-21munin-run09:54:212
29715214715,117sleep2222-21systemd-journal09:33:382
1513421445,11sleep20-21swapper/207:04:372
3999214315,112sleep24063-21sendmail_mailqu08:09:512
516214216,25sleep20-21swapper/211:24:532
20896214128,80sleep220912-21grep12:29:422
17948213890,22sleep20-21swapper/207:14:222
26805213724,17sleep20-21swapper/211:04:502
30572213613,106sleep030515-21latency_hist11:19:220
2432421338,91sleep224334-21munin-run10:59:212
20795213211,60sleep220905-21timerandwakeup07:19:512
20795213211,60sleep220905-21timerandwakeup07:19:512
14492213223,90sleep014533-21uniq12:09:530
14492213223,90sleep014533-21uniq12:09:530
14344213213,100sleep311569-21kworker/u8:310:24:543
20413213113,101sleep220564-21latency_hist12:29:212
6653212754,16sleep20-21swapper/208:19:362
4070212611,15sleep00-21swapper/009:54:400
4070212611,15sleep00-21swapper/009:54:400
7886212514,68sleep20-21swapper/211:49:322
3006121256,47sleep20-21swapper/211:14:512
17790212522,81sleep317807-21cron10:39:193
1010212512,26sleep00-21swapper/009:44:420
28050212416,86sleep128098-21fschecks_count07:44:421
28050212416,86sleep128098-21fschecks_count07:44:421
2213521199,53sleep20-21swapper/207:24:482
9433211826,49sleep30-21swapper/311:54:303
79621189,94sleep2845-21ntpq07:59:452
3849211819,76sleep03559-21apt-get09:54:230
6380211619,55sleep20-21swapper/211:44:482
3367211616,81sleep33413-21/usr/sbin/munin11:34:433
7962211418,72sleep37938-21latency_hist08:24:213
2842921147,54sleep228471-21cut07:44:512
2842921147,54sleep228471-21cut07:44:512
2183821146,11sleep20-21swapper/209:07:332
22757211315,84sleep322830-21latency_hist10:54:213
16310211316,76sleep116369-21systemd-run07:09:201
11562211112,78sleep111578-21modprobe10:19:191
10240211112,17sleep00-21swapper/011:54:510
31722211019,61sleep20-21swapper/209:39:392
3255221098,89sleep232625-21systemd-run07:59:212
174121095,11sleep20-21swapper/209:46:102
2760210840,53sleep22885-21grep11:34:222
21419210717,72sleep120933-21apt-get10:49:301
536921066,43sleep20-21swapper/208:14:432
250221069,56sleep20-21swapper/208:04:502
2184521068,26sleep10-21swapper/107:24:431
32242210513,74sleep132313-21find09:39:511
3081021059,53sleep20-21swapper/211:19:362
28599210526,26sleep30-21swapper/309:29:393
1845421055,89sleep20-21swapper/212:20:012
31379210413,26sleep131384-21diskstats07:54:391
23822210425,28sleep223259-21/usr/sbin/munin07:29:532
15907210425,54sleep115926-21apt-get12:14:301
950921038,49sleep20-21swapper/208:29:212
26205210322,64sleep326350-21latency_hist07:39:233
2671521009,40sleep226750-21date09:24:212
2142021007,57sleep20-21swapper/210:49:312
76292998,49sleep20-21swapper/210:04:472
46092998,27sleep20-21swapper/209:54:582
46092998,27sleep20-21swapper/209:54:582
353229916,67sleep13594-21apt-config09:54:201
212229815,70sleep12185-21idleruntime08:04:411
297029710,49sleep20-21swapper/211:34:302
288552976,80sleep20-21swapper/211:13:182
2638229713,31sleep30-21swapper/307:39:313
2042929712,26sleep20-21swapper/209:04:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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