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2025-04-18 - 15:32

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #3

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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot3s.osadl.org (updated Fri Apr 18, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18636509911939,77cyclictest1844782-21kworker/0:120:25:010
1863655998534,12cyclictest1878492-40install00:00:011
1863650996123,33cyclictest1870247-21sshd21:19:350
1863660995946,9cyclictest48-21kcompactd022:01:363
1863650995913,41cyclictest1866667-21latency_hist20:10:010
1863660995845,9cyclictest48-21kcompactd020:43:553
1863650995616,36cyclictest1864608-21cron19:30:010
1863650995616,36cyclictest1864608-21cron19:30:000
1863660995545,8cyclictest48-21kcompactd019:46:423
1863660995544,8cyclictest48-21kcompactd020:46:093
1863655995532,18cyclictest235-21systemd-journal22:55:011
1863660995438,12cyclictest1-21systemd23:00:013
1863655995432,17cyclictest1874376-21cat22:40:001
1863660995240,9cyclictest48-21kcompactd022:37:103
1863660995239,9cyclictest48-21kcompactd023:18:263
1863660995233,14cyclictest1-21systemd23:40:013
1863657995234,14cyclictest272-21dbus-daemon21:15:002
1863655995231,11cyclictest0-21swapper/120:30:001
1863650995218,29cyclictest1869538-21sed21:05:020
1863650995218,29cyclictest1869538-21sed21:05:020
1863660995135,12cyclictest1879521-21run-parts00:20:003
1863660995135,12cyclictest1879521-21run-parts00:20:003
1863655995136,10cyclictest1-21systemd00:20:011
1863655995136,10cyclictest1-21systemd00:20:011
1863655995132,14cyclictest1-21systemd21:15:001
1863660995034,12cyclictest235-21systemd-journal21:45:013
186366099502,18cyclictest1866151-21munin-plugin-st20:00:013
186366099502,18cyclictest1866151-21munin-plugin-st20:00:013
1863660995019,5cyclictest1856847-21kworker/3:120:40:023
1863657995034,12cyclictest235-21systemd-journal20:24:592
186365599507,25cyclictest1869220-21modprobe21:00:001
1863655995027,18cyclictest272-21dbus-daemon23:00:011
1863655995026,16cyclictest272-21dbus-daemon23:30:001
1863657994934,12cyclictest1-21systemd23:20:012
1863657994934,12cyclictest1-21systemd21:10:012
1863655994932,9cyclictest306-21in:imuxsock21:30:001
1863655994928,15cyclictest23-21ksoftirqd/121:10:001
186365099497,38cyclictest0-21swapper/023:15:010
1863650994919,11cyclictest1872150-21date21:55:020
1863650994919,11cyclictest1872150-21date21:55:020
1863650994915,11cyclictest1867308-21ls20:20:020
1863650994915,11cyclictest1867308-21ls20:20:010
1863660994836,9cyclictest48-21kcompactd019:53:563
1863655994831,12cyclictest23-21ksoftirqd/121:20:021
1863655994831,11cyclictest306-21in:imuxsock23:35:011
1863660994734,9cyclictest48-21kcompactd021:36:383
1863660994734,9cyclictest48-21kcompactd021:36:383
1863655994729,13cyclictest1873363-21tr22:20:001
1863660994639,3cyclictest48-21kcompactd021:08:543
1863660994624,16cyclictest272-21dbus-daemon22:15:003
186365799467,7cyclictest30-21ksoftirqd/200:05:012
1863655994623,18cyclictest272-21dbus-daemon21:55:011
1863655994623,18cyclictest272-21dbus-daemon21:55:001
1863650994633,10cyclictest1865621-21sshd19:47:350
1863650994629,13cyclictest235-21systemd-journal20:45:000
1863660994532,9cyclictest272-21dbus-daemon19:40:003
1863657994527,14cyclictest235-21systemd-journal20:20:002
1863657994527,14cyclictest235-21systemd-journal20:20:002
1863655994529,12cyclictest272-21dbus-daemon00:15:011
186365099458,33cyclictest0-21swapper/000:20:020
186365099458,33cyclictest0-21swapper/000:20:020
1863650994530,11cyclictest272-21dbus-daemon00:25:000
1863650994521,16cyclictest1869211-21cron20:59:590
1863650994518,4cyclictest1878696-21latency_hist00:00:030
1863660994431,10cyclictest48-21kcompactd020:00:043
1863657994431,10cyclictest1868744-21wc20:50:012
1863657994430,11cyclictest30-21ksoftirqd/220:40:012
1863657994422,17cyclictest1872051-21cron21:55:002
1863657994422,17cyclictest1872051-21cron21:54:592
186365599445,29cyclictest221rcuc/123:50:021
1863650994439,3cyclictest16950irq/224-800000023:55:010
1863650994425,14cyclictest235-21systemd-journal23:00:010
1863650994423,16cyclictest1869716-21sshd21:05:370
1863650994416,23cyclictest272-21dbus-daemon19:55:010
186365099441,5cyclictest131rcu_preempt23:20:010
186365099441,39cyclictest1877434-21cron23:40:000
1863660994331,9cyclictest235-21systemd-journal00:34:363
1863660994331,10cyclictest48-21kcompactd000:06:563
1863660994328,11cyclictest1-21systemd19:20:003
1863657994331,8cyclictest235-21systemd-journal00:40:012
1863657994330,10cyclictest272-21dbus-daemon21:25:012
1863657994330,10cyclictest272-21dbus-daemon21:25:002
1863657994330,10cyclictest1871050-21systemd-run21:35:002
1863657994326,13cyclictest235-21systemd-journal19:41:362
1863657994326,13cyclictest235-21systemd-journal19:41:352
186365799432,4cyclictest131rcu_preempt20:45:022
1863657994318,19cyclictest1869212-21cron21:00:002
186365599438,18cyclictest1871281-21modprobe21:40:011
186365599438,18cyclictest1871281-21modprobe21:40:011
186365599435,32cyclictest1869488-21cron21:05:001
186365599435,32cyclictest1869488-21cron21:04:591
1863655994325,12cyclictest272-21dbus-daemon22:00:001
186365599432,4cyclictest131rcu_preempt20:00:031
186365599432,4cyclictest131rcu_preempt20:00:021
186365099437,31cyclictest1880461-21latency_hist00:35:020
186365099433,8cyclictest0-21swapper/022:40:030
1863650994329,10cyclictest12-21ksoftirqd/021:40:010
1863650994329,10cyclictest12-21ksoftirqd/021:40:010
1863650994322,17cyclictest1865372-21sshd19:42:360
1863650994322,17cyclictest1865372-21sshd19:42:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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