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2025-12-26 - 19:46

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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: 50.5 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack5slot7s.osadl.org (updated Fri Dec 26, 2025 12:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28526223982172,85sleep00-21swapper07:06:370
289519916212,126cyclictest15068-21sort09:00:450
289519916131,92cyclictest13821-21wc12:15:040
289519916116,120cyclictest27532-21apt10:20:020
289519916033,19cyclictest24321-21munin-run10:00:010
289519916014,122cyclictest25135-21latency_hist10:05:000
289519915817,117cyclictest14696-21munin-run09:00:010
289519915714,24cyclictest7444-21apt-get11:35:190
289519915615,22cyclictest4226-21apt-get11:15:190
289519915614,102cyclictest11354-21munin-run12:00:010
289519915536,23cyclictest3803-21processes11:10:520
289519915518,112cyclictest3349-21apt-get07:50:180
289519915514,118cyclictest16174-21apt-get12:31:030
289519915437,96cyclictest7754-21processes08:15:560
289519915427,106cyclictest0-21swapper09:30:240
289519915419,24cyclictest1721-21munin-run11:00:020
289519915419,107cyclictest4142-21apt-get07:55:190
289519915416,23cyclictest1842-21apt-get11:00:190
289519915411,41cyclictest28348-21apt-get10:26:490
289519915324,27cyclictest22825-21apt-get09:50:210
289519915322,26cyclictest13315-21diskstats08:50:360
289519915318,109cyclictest12055-21apt-get08:41:590
289519915317,106cyclictest22143-21diskstats09:45:330
289519915314,114cyclictest8694-21wc11:40:580
289519915313,38cyclictest10662-21df08:35:280
289519915313,113cyclictest10548-21sh11:55:000
289519915312,99cyclictest30882-21sh07:20:020
289519915240,91cyclictest29756-21munin-node07:15:090
289519915240,89cyclictest5339-21processes08:00:550
289519915217,25cyclictest2879-21memory11:05:420
289519915217,24cyclictest12269-21apt-get12:05:180
289519915217,22cyclictest1597-21users07:36:080
289519915216,25cyclictest31887-21apt-get10:45:170
289519915215,24cyclictest18927-21df09:25:270
289519915215,24cyclictest16271-21cat12:30:080
289519915215,112cyclictest11474-21apt-get12:00:190
289519915212,101cyclictest13100-21sh08:50:000
289519915121,29cyclictest31748-21users10:41:090
289519915115,97cyclictest7164-21unixbench_singl08:11:020
289519915115,31cyclictest27954-21ntpq10:20:490
289519915113,116cyclictest18109-21wc09:20:220
289519915112,115cyclictest5855-21apt-get11:25:190
289519915110,26cyclictest30695-21sendmail_mailqu10:35:560
289519915030,21cyclictest15611-21apt-get09:05:190
289519915015,36cyclictest5758-21apt-get08:05:190
289519915013,111cyclictest20414-21apt-get09:35:180
289519915010,24cyclictest26638-21/usr/sbin/munin10:11:020
289519914936,92cyclictest17408-21df_inode12:35:320
289519914932,97cyclictest21764-21ls09:41:030
289519914916,24cyclictest32677-21/usr/sbin/munin10:50:240
289519914915,105cyclictest31009-21apt-get07:20:180
289519914913,113cyclictest1764-21apt-get07:40:190
289519914912,28cyclictest6890-21/usr/sbin/munin11:30:430
289519914912,24cyclictest16478-21cstates09:10:210
289519914911,27cyclictest14502-21head12:16:010
289519914831,19cyclictest0-21swapper08:30:490
289519914829,21cyclictest0-21swapper07:49:190
289519914814,96cyclictest30173-21munin-run10:35:010
289519914812,111cyclictest9598-21grep08:26:040
289519914810,115cyclictest32165-21wc07:25:530
289519914723,109cyclictest4145-1kworker/u3:308:20:420
289519914715,22cyclictest32596-21apt-get07:30:160
289519914714,24cyclictest14687-21/usr/sbin/munin12:20:110
289519914711,96cyclictest9060-21/usr/sbin/munin11:45:340
289519914610,113cyclictest25463-21sort10:05:410
289519914514,23cyclictest5372-21grep11:20:490
289519914512,93cyclictest17904-21apt09:20:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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