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2025-07-01 - 01:21

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 Mon Jun 30, 2025 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12134224362190,87sleep00-21swapper07:06:470
125439917216,26cyclictest26043-21/usr/sbin/munin08:30:330
125439916214,122cyclictest7343-21apt-get09:56:150
125439915719,95cyclictest21707-21apt-get08:06:190
125439915618,26cyclictest28457-21apt-get08:45:200
125439915518,111cyclictest30865-21apt-get09:00:230
125439915511,99cyclictest15700-21ls10:45:050
125439915426,107cyclictest0-21swapper07:20:490
125439915413,116cyclictest6475-21grep09:46:140
125439915413,116cyclictest11121-21memory10:15:470
125439915410,41cyclictest19225-21grep11:05:500
125439915319,22cyclictest21709-21munin-run08:05:050
125439915314,115cyclictest5107-21wc09:40:410
125439915314,114cyclictest24641-21df11:40:280
125439915312,24cyclictest28393-21fgrep12:01:490
125439915218,25cyclictest13347-21munin-node07:15:050
125439915215,114cyclictest18846-21memory07:45:480
125439915214,24cyclictest16507-21/usr/sbin/munin10:50:510
125439915213,26cyclictest4636-21grep09:36:100
125439915212,25cyclictest32415-21grep09:10:040
125439915210,26cyclictest29672-21find08:50:590
125439915118,25cyclictest1495-21apt09:20:000
125439915117,108cyclictest26128-21apt-get11:50:250
125439915116,112cyclictest24337-21munin-run08:20:010
125439915116,103cyclictest21339-21apt-get11:20:190
125439915111,115cyclictest16117-21latency_hist07:30:040
125439915110,116cyclictest25923-21awk08:26:100
125439915017,25cyclictest25573-21memory11:45:460
125439915016,23cyclictest19810-21df11:10:270
125439915015,111cyclictest7343-21apt09:55:020
125439915014,112cyclictest32097-21diskstats12:25:360
125439915013,50cyclictest12512-21apt-get10:25:260
125439915012,97cyclictest14340-21memory10:35:480
125439915010,28cyclictest20075-21sshd07:52:490
125439915010,115cyclictest29897-21open_inodes12:10:540
12543991499,42cyclictest481-21cut09:11:030
125439914913,112cyclictest12341-21head10:21:070
125439914910,116cyclictest112-21systemd-journal11:30:010
125439914821,27cyclictest24457-21apt-get08:20:250
125439914817,25cyclictest16192-21apt-get07:30:170
125439914815,94cyclictest1015-21munin-run12:35:020
125439914815,112cyclictest21199-21cron11:20:010
125439914813,24cyclictest18006-21munin-run11:00:010
12543991479,40cyclictest28845-21ls12:05:360
125439914731,22cyclictest30744-21sendmail09:00:020
125439914718,25cyclictest18126-21apt-get11:00:200
125439914718,22cyclictest13347-21munin-node07:15:100
125439914718,102cyclictest1115-21apt-get12:35:190
125439914717,46cyclictest9947-21users10:06:050
125439914712,25cyclictest1849-21latency09:20:490
125439914711,36cyclictest112-21systemd-journal08:14:480
125439914711,113cyclictest27629-21sort08:40:060
125439914620,101cyclictest8501-21apt-get10:00:300
125439914618,101cyclictest23828-21diskstats11:35:360
125439914618,100cyclictest3456-21memory09:30:520
125439914612,36cyclictest27223-21awk11:55:500
125439914612,111cyclictest30869-21sort12:16:000
125439914612,108cyclictest31701-21switchtime12:21:050
125439914611,22cyclictest13933-21unixbench_singl10:31:080
125439914516,24cyclictest17095-21df_inode07:35:290
125439914513,108cyclictest18572-21sort07:45:040
125439914512,27cyclictest16218-21awk10:46:020
12543991449,113cyclictest20501-21/usr/sbin/munin07:55:550
125439914430,19cyclictest28206-21timerandwakeup08:41:040
125439914416,27cyclictest23163-21memory11:30:440
125439914411,109cyclictest10199-21diskstats10:10:380
125439914313,28cyclictest2761-21/usr/sbin/munin09:25:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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