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2025-08-30 - 19:40

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 Sat Aug 30, 2025 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12290224362201,98sleep00-21swapper07:09:000
12446991609,110cyclictest12782-21memory07:10:460
124469916014,23cyclictest20862-21munin-run08:00:030
124469915914,22cyclictest30742-21munin-run09:00:050
124469915912,125cyclictest25402-21irqstats08:25:390
124469915818,40cyclictest30926-21apt-get09:00:330
124469915718,115cyclictest14592-21apt-get10:41:270
124469915715,27cyclictest24902-21ntp_states11:40:520
124469915617,23cyclictest14597-21munin-run10:40:020
124469915616,27cyclictest30187-21apt-get12:15:190
124469915515,116cyclictest21675-21apt-get08:06:110
124469915514,117cyclictest16752-21latency10:50:450
124469915513,119cyclictest314-21irqstats12:30:450
124469915511,120cyclictest8908-21grep10:01:030
124469915417,29cyclictest27902-21df_inode12:00:290
124469915417,115cyclictest4948-21munin-run09:40:020
124469915416,113cyclictest20979-21/usr/sbin/munin08:00:250
124469915414,98cyclictest27886-21memory08:40:460
124469915414,23cyclictest17033-21df_inode07:35:390
124469915412,102cyclictest4129-21sshd09:34:460
124469915332,22cyclictest24286-21switchtime11:36:010
124469915318,22cyclictest12994-21apt10:30:000
124469915311,120cyclictest23013-21cat08:10:490
124469915216,21cyclictest0-21swapper09:25:470
124469915215,25cyclictest26266-21memory08:30:450
124469915215,112cyclictest32061-21irqstats09:05:460
124469915214,30cyclictest13347-21munin-node09:42:460
124469915213,39cyclictest16536-21awk07:30:570
124469915213,115cyclictest20782-21memory11:15:450
124469915212,23cyclictest31988-21irqstats12:25:440
124469915140,23cyclictest31652-21unixbench_singl12:21:070
124469915133,98cyclictest1734-21munin-plugin-st09:20:010
124469915119,25cyclictest6660-21apt-get09:50:220
124469915076,38cyclictest28800-21cat12:05:430
124469915014,47cyclictest18676-21diskstats07:45:340
124469915014,40cyclictest25487-21df_inode11:45:280
124469915014,25cyclictest2534-21sshd09:23:450
124469915014,22cyclictest20403-21users11:11:220
124469915013,115cyclictest11374-21apt10:20:020
124469915013,114cyclictest14390-21munin-run07:20:030
124469915012,25cyclictest14791-21ntpq07:20:490
124469915012,118cyclictest10669-1kworker/u3:010:30:150
124469915011,98cyclictest10091-21wc10:10:430
124469915011,117cyclictest12129-21unixbench_singl10:21:050
12446991499,116cyclictest29656-21ls12:10:490
124469914924,22cyclictest0-21swapper11:30:490
124469914912,22cyclictest18009-21memory07:40:460
124469914911,114cyclictest26543-21grep11:50:550
12446991488,118cyclictest29694-21cut08:51:010
124469914812,25cyclictest16050-21ntp_offset10:45:590
12446991479,115cyclictest1359-21awk12:35:560
124469914784,39cyclictest24436-21apt-get08:20:220
124469914735,92cyclictest9357-21ntpq10:05:490
124469914729,21cyclictest0-21swapper11:00:410
124469914720,28cyclictest15306-21apt-get07:25:210
124469914714,112cyclictest27146-21irqstats11:55:390
124469914712,95cyclictest6559-21munin-plugin-st09:50:000
124469914712,110cyclictest28932-21mailstats08:46:000
124469914711,27cyclictest26821-21/usr/sbin/munin08:35:480
124469914711,26cyclictest17952-21grep10:56:120
124469914711,111cyclictest19124-21irqstats11:05:410
124469914614,21cyclictest22869-21munin-run11:30:010
124469914614,110cyclictest22074-21munin-run11:25:010
124469914515,25cyclictest23702-21df08:15:280
124469914514,110cyclictest8081-21head09:56:080
124469914418,24cyclictest326-21diskstats09:10:320
124469914310,112cyclictest19851-21cut07:51:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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