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2024-11-22 - 08:17

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 376 highest latencies:
System rack5slot7s.osadl.org (updated Fri Nov 22, 2024 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18551224482198,90sleep00-21swapper19:07:220
188959916519,28cyclictest31195-21diskstats20:20:340
188959916217,119cyclictest14606-21munin-run22:00:030
188959916215,121cyclictest1476-21munin-run00:00:030
188959916015,26cyclictest505-21tr20:30:470
188959916013,119cyclictest11296-21sed21:36:000
188959915942,20cyclictest7733-21ntp_kernel_err00:35:480
188959915917,100cyclictest5975-21diskstats21:05:330
188959915915,25cyclictest19774-21/usr/sbin/munin22:31:050
188959915911,123cyclictest27278-21grep23:11:010
188959915835,102cyclictest25474-21find23:00:540
188959915818,26cyclictest27558-21diskstats23:15:330
188959915815,40cyclictest1125-21diskstats20:35:320
188959915815,26cyclictest21660-21apt19:25:010
188959915812,123cyclictest12415-21diskstats21:45:330
188959915812,122cyclictest29024-21cat23:25:040
188959915734,24cyclictest4057-21sed20:51:040
188959915723,26cyclictest18980-21apt-get22:25:200
188959915719,26cyclictest5692-21apt-get00:25:240
188959915716,21cyclictest19104-21diskstats19:10:320
188959915715,117cyclictest32427-21/usr/sbin/munin23:50:470
188959915714,22cyclictest22482-21apt22:45:120
188959915710,122cyclictest21431-21apt-get22:40:260
188959915620,114cyclictest3998-21kworker/u2:500:30:210
188959915618,112cyclictest1841-21apt-get20:40:180
188959915618,100cyclictest27885-21sort20:00:480
188959915617,114cyclictest30788-21diskstats23:35:330
188959915612,120cyclictest14601-21apt-get22:00:350
188959915536,96cyclictest5033-21latency_hist21:00:060
188959915517,21cyclictest29321-21users20:07:100
188959915516,115cyclictest10582-21apt21:35:010
188959915515,36cyclictest21277-21apt-get22:40:020
188959915414,115cyclictest24877-21apt-get19:45:320
188959915411,22cyclictest29591-21switchtime23:25:590
188959915317,95cyclictest1770-21irqstats00:00:380
188959915317,113cyclictest26107-21df19:50:320
188959915316,113cyclictest4939-21df_inode00:20:300
188959915315,97cyclictest21873-21diskstats19:25:340
188959915314,40cyclictest17953-21grep22:16:020
188959915314,25cyclictest29586-21fw_packets20:10:440
188959915314,22cyclictest4709-21munin-run00:20:010
188959915314,113cyclictest13801-21munin-run21:55:020
188959915312,117cyclictest2714-21wc20:45:220
188959915231,22cyclictest0-21swapper22:06:010
188959915223,102cyclictest31505-21apt-get23:40:220
188959915218,45cyclictest20307-21irqstats19:15:570
188959915218,24cyclictest3369-21irqstats00:10:470
188959915218,105cyclictest26906-21df19:55:260
188959915216,24cyclictest23535-21df_inode22:50:400
188959915211,24cyclictest23256-21munin-plugin-st19:35:010
188959915115,116cyclictest5765-21apt21:05:010
188959915114,21cyclictest24879-21/usr/sbin/munin19:45:050
188959915114,112cyclictest23466-21diskstats19:35:320
188959915112,24cyclictest8159-21modprobe21:20:020
188959915112,24cyclictest30503-21sed23:31:090
188959915110,117cyclictest9199-21diskstats21:25:320
188959915016,24cyclictest18282-21df_inode22:20:290
188959915015,22cyclictest31993-21diskstats20:25:330
188959915011,28cyclictest2459-21ls00:05:250
188959915010,25cyclictest26276-21fgrep23:05:570
188959915010,114cyclictest32330-21/usr/sbin/munin23:50:020
188959914914,24cyclictest24462-21memory22:55:400
188959914717,30cyclictest16788-21memory22:10:460
188959914717,26cyclictest30354-21df20:15:290
188959914717,105cyclictest11615-21df_inode21:40:300
188959914711,112cyclictest7239-21cat21:11:020
188959914513,29cyclictest8405-21sshd21:20:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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