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2025-10-19 - 22:45

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 the highest latencies:
System rack5slot7s.osadl.org (updated Sun Oct 19, 2025 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20845224322202,85sleep00-21swapper07:06:590
21227991599,126cyclictest26542-21sed10:55:410
212279915916,99cyclictest9312-21apt-get12:31:150
212279915829,19cyclictest4033-21munin-run08:40:020
212279915814,121cyclictest7515-21wc12:16:020
212279915741,24cyclictest8337-21irqstats09:05:420
212279915617,38cyclictest22023-21munin-run07:15:020
212279915616,21cyclictest4250-21apt-get12:00:350
212279915610,120cyclictest23613-21apt-get10:41:360
212279915610,120cyclictest13918-21munin-run09:40:020
212279915516,116cyclictest32421-21apt-get08:15:300
212279915515,119cyclictest20394-21munin-run10:20:040
21227991548,121cyclictest112-21systemd-journal09:49:410
212279915440,23cyclictest5284-21/usr/sbin/munin08:45:520
212279915417,24cyclictest16323-21munin-run09:55:020
212279915415,26cyclictest31103-21munin-run11:25:000
212279915415,115cyclictest23170-21apt07:20:010
212279915411,26cyclictest27370-21/usr/sbin/munin07:45:120
212279915411,119cyclictest25188-21find10:46:040
212279915318,112cyclictest21487-21irqstats10:25:410
212279915316,113cyclictest10466-21apt09:20:020
212279915313,25cyclictest12085-21munin-run09:30:020
212279915313,117cyclictest17078-21users09:56:070
212279915312,116cyclictest22216-21df_inode10:30:300
212279915214,25cyclictest26612-21df_inode07:40:300
212279915213,115cyclictest21214-21munin-run10:25:000
212279915212,119cyclictest23088-21sshd10:35:410
212279915212,114cyclictest7241-21apt09:00:010
212279915113,113cyclictest1956-21/usr/sbin/munin11:45:130
212279915112,26cyclictest6383-21grep08:51:020
212279915110,117cyclictest18269-21ls10:05:460
21227991509,118cyclictest30211-21sed11:16:060
212279915016,34cyclictest26388-21munin-run07:40:030
212279915016,25cyclictest27289-21df_inode11:00:320
212279915016,110cyclictest31380-21irqstats11:25:420
212279915014,112cyclictest32241-21memory11:30:410
212279915013,113cyclictest29359-21memory07:55:420
212279914978,50cyclictest30741-21apt08:05:130
212279914935,22cyclictest4309-21gpgv12:00:070
212279914923,20cyclictest13504-1kworker/u3:609:40:190
212279914915,25cyclictest7824-21apt-get12:20:170
212279914911,27cyclictest1039-21apt11:40:020
212279914910,121cyclictest27874-1kworker/u3:507:50:190
212279914821,100cyclictest945-21apt-get08:20:300
212279914820,101cyclictest4324-21irqstats08:40:380
212279914817,20cyclictest0-21swapper07:25:460
212279914729,22cyclictest0-21swapper08:00:260
212279914728,96cyclictest0-21swapper12:10:420
212279914720,28cyclictest28084-21df_inode11:05:280
212279914719,103cyclictest23295-21apt-get07:20:180
212279914716,24cyclictest8620-21apt-get12:25:180
212279914715,23cyclictest5510-21diskstats12:05:420
212279914712,112cyclictest3376-21sed11:51:030
212279914711,113cyclictest12182-21/usr/sbin/munin09:30:370
212279914710,26cyclictest10961-21proc_pri09:20:540
212279914630,95cyclictest31610-21cstates08:10:250
212279914624,20cyclictest11143-21cron12:40:000
212279914617,110cyclictest19205-21wc10:10:540
212279914615,26cyclictest24998-21diskstats07:30:340
212279914613,26cyclictest1764-21unixbench_singl11:41:020
212279914612,25cyclictest9238-21/usr/sbin/munin09:10:490
212279914533,17cyclictest0-21swapper08:30:470
212279914512,109cyclictest2446-21sort08:30:040
212279914510,29cyclictest17369-21/usr/sbin/munin10:00:340
212279914415,26cyclictest29430-21users11:11:060
212279914413,25cyclictest8059-21latency_hist09:05:050
212279914011,25cyclictest25559-21/usr/sbin/munin10:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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