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2025-12-04 - 14:36

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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.

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 rack2slot7s.osadl.org (updated Thu Dec 04, 2025 12:39:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2299825994738,6cyclictest2368661-21ssh10:00:012
2299824994738,6cyclictest2343375-21latency_hist09:20:031
2299823994640,4cyclictest2395160-21munin-run10:40:010
2299824994434,6cyclictest422-21dbus-daemon10:20:021
2299823994437,4cyclictest2326801-21sendmail08:40:010
2299823994330,9cyclictest2370592-21gltestperf10:04:120
2299824994234,5cyclictest2355661-21munin-run09:40:001
2299824994234,5cyclictest2355661-21munin-run09:40:001
2299824994232,6cyclictest2478952-21systemd-run12:40:011
2299825994132,6cyclictest1484156-21cups-browsed10:14:152
2299824994134,4cyclictest2443439-21latency_hist11:50:021
2299824994133,5cyclictest422-21dbus-daemon11:10:011
2299823994133,5cyclictest2348861-21ssh09:29:220
2299825994031,6cyclictest421-21avahi-daemon09:24:102
2299825994031,6cyclictest421-21avahi-daemon09:24:102
2299823994031,6cyclictest1484156-21cups-browsed11:19:370
2299823994028,10cyclictest2299822-21cyclictest07:50:010
2299825993832,3cyclictest0-21swapper/211:00:022
2299825993830,5cyclictest2422538-21cron11:20:012
2299825993829,6cyclictest421-21avahi-daemon09:11:492
2299825993829,6cyclictest1484156-21cups-browsed12:13:302
2299825993828,7cyclictest2436355-21cron11:40:012
2299825993827,8cyclictest2381597-21munin-plugin-st10:20:012
2299824993830,5cyclictest2358905-21cron09:45:001
2299825993729,5cyclictest2467647-21unixbench_singl12:24:322
2299825993728,6cyclictest2395163-21sendmail10:40:012
2299825993727,7cyclictest422-21dbus-daemon12:25:162
2299824993729,5cyclictest2450315-21cron12:00:011
2299824993729,5cyclictest2346023-21timerandwakeup09:24:321
2299824993729,5cyclictest2346023-21timerandwakeup09:24:321
2299824993729,5cyclictest1-21systemd08:15:011
2299824993729,5cyclictest1-21systemd08:15:011
2299824993729,4cyclictest2409001-21ssh11:00:011
2299824993728,6cyclictest1484156-21cups-browsed11:26:571
2299823993730,5cyclictest1-21systemd12:20:000
2299823993730,5cyclictest1-21systemd12:20:000
2299823993729,6cyclictest421-21avahi-daemon11:09:220
2299823993729,5cyclictest2478912-21munin-plugin-st12:40:010
2299825993628,5cyclictest2424618-21telnet11:24:132
2299825993628,5cyclictest1484156-21cups-browsed10:48:402
2299825993627,6cyclictest486-21gmain12:33:392
2299824993627,6cyclictest2424758-21fschecks_count11:24:151
2299824993626,7cyclictest2364847-21ntp_offset09:54:231
2299823993627,6cyclictest1484156-21cups-browsed12:14:140
2299825993529,3cyclictest0-21swapper/211:35:012
2299825993527,5cyclictest959-21mta-sts-daemon11:44:202
2299825993527,5cyclictest1484156-21cups-browsed07:28:272
2299825993526,6cyclictest1484156-21cups-browsed12:02:392
2299824993527,5cyclictest2460422-21unixbench_singl12:14:331
2299824993527,5cyclictest2395160-21munin-run10:40:011
2299824993527,5cyclictest2385014-21idleruntime-cro10:25:011
2299824993527,5cyclictest2333971-21munin-run09:05:011
2299823993529,4cyclictest2388327-21systemd-run10:30:020
2299823993527,5cyclictest2468068-21cat12:25:020
2299825993428,3cyclictest0-21swapper/209:44:322
2299825993426,5cyclictest2429160-21unixbench_multi11:29:352
2299825993425,6cyclictest2362256-21systemd-run09:50:012
229982499344,28cyclictest2335806-21diskmemload10:34:111
2299824993430,2cyclictest0-21swapper/111:15:011
2299824993428,4cyclictest0-21swapper/109:35:001
2299824993428,4cyclictest0-21swapper/109:35:001
2299824993426,5cyclictest957-21mta-sts-daemon10:54:541
2299824993426,5cyclictest2310262-21unixbench_singl07:44:331
2299824993426,5cyclictest2304861-21fschecks_time07:29:131
2299824993425,6cyclictest422-21dbus-daemon12:10:021
2299824993425,6cyclictest1484156-21cups-browsed08:39:211
2299824993424,7cyclictest2368646-21sendmail10:00:011
2299824993424,6cyclictest421-21avahi-daemon09:10:101
2299823993427,4cyclictest2374409-21wc10:09:290
2299823993426,5cyclictest1484156-21cups-browsed12:30:470
2299823993426,5cyclictest1484156-21cups-browsed11:48:290
2299823993425,6cyclictest1484156-21cups-browsed09:59:420
2299825993327,3cyclictest0-21swapper/211:50:022
2299825993324,6cyclictest1484156-21cups-browsed08:29:262
2299824993329,2cyclictest0-21swapper/111:19:161
2299824993328,2cyclictest0-21swapper/107:15:021
2299824993327,3cyclictest0-21swapper/112:19:271
2299824993327,3cyclictest0-21swapper/112:19:271
2299824993322,8cyclictest2401486-21mailstats10:49:261
2299824993322,8cyclictest2386903-21/usr/sbin/munin10:29:151
2299823993327,4cyclictest2333770-21sshd09:04:220
2299823993326,4cyclictest2425985-21ssh11:25:010
2299823993326,4cyclictest2342418-21sh09:19:260
2299823993325,5cyclictest453-21systemd-logind11:45:020
2299823993325,5cyclictest421-21avahi-daemon09:47:250
2299823993325,5cyclictest2380130-21aten_r2power_fr10:19:100
2299823993325,5cyclictest2355656-21cron09:40:000
2299823993325,5cyclictest2355656-21cron09:40:000
2299823993325,5cyclictest2335806-21diskmemload11:00:020
2299823993325,5cyclictest1-21systemd07:40:010
2299823993324,6cyclictest1484156-21cups-browsed08:00:190
2299823993320,3cyclictest0-21swapper/009:24:120
2299823993320,3cyclictest0-21swapper/009:24:120
2299825993224,5cyclictest2320863-21latency_hist08:20:022
2299825993224,5cyclictest2310861-21fschecks_time07:49:102
2299825993224,5cyclictest1484156-21cups-browsed12:00:022
2299825993223,7cyclictest2335806-21diskmemload09:19:132
2299825993223,6cyclictest1484156-21cups-browsed10:00:362
2299825993222,7cyclictest698-21cron07:40:012
2299824993227,2cyclictest0-21swapper/111:45:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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