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2023-03-20 - 16:43

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 
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ARM Freescale i.MX6UL @528 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50500000 -m -n -a0 -t1 -p99 -i396 -h400 -q
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 alll highest latencies:
System rack5slot7s.osadl.org (updated Mon Mar 20, 2023 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3870224372206,87sleep00-21swapper07:07:080
42409916212,126cyclictest410-21awk10:01:040
42409916118,117cyclictest17161-21irqstats08:25:470
42409916011,27cyclictest7007-21apt-get07:26:420
42409915939,21cyclictest12807-21unixbench_singl11:16:150
42409915911,125cyclictest19561-21cat12:00:010
42409915820,27cyclictest16463-21apt-get11:40:320
42409915716,35cyclictest5266-21ntpq10:31:040
42409915715,36cyclictest16068-21munin-run08:20:020
42409915618,112cyclictest27572-21apt-get09:30:320
42409915611,120cyclictest12182-21sshd07:55:330
42409915610,120cyclictest32457-21sendmail10:00:010
42409915535,19cyclictest15178-21unixbench_singl08:11:120
42409915530,22cyclictest15062-21kworker/u2:1511:35:220
42409915528,17cyclictest0-21swapper10:10:000
42409915517,113cyclictest5051-21munin-node07:15:090
42409915517,106cyclictest20207-21apt-get08:45:240
42409915516,24cyclictest19510-21df08:40:340
42409915512,118cyclictest25686-21wc12:36:110
42409915421,106cyclictest9027-21diskstats07:35:450
42409915314,25cyclictest7273-21apt10:45:020
42409915313,29cyclictest5947-21mailstats07:16:240
42409915310,24cyclictest8024-21grep10:46:190
42409915310,117cyclictest22517-21modprobe09:00:030
42409915219,25cyclictest17261-21apt-get11:45:280
42409915213,24cyclictest25756-21munin-run09:20:040
4240991519,118cyclictest23282-21grep12:21:060
42409915137,22cyclictest6109-21proc_pri10:36:060
42409915120,29cyclictest8975-21apt-get10:55:340
42409915118,35cyclictest2761-21memory10:15:570
42409915112,116cyclictest18684-21df08:35:320
42409915111,21cyclictest28710-21uname09:36:020
42409915016,25cyclictest8487-21ps07:31:110
42409915015,112cyclictest9737-21apt-get07:40:220
42409915014,25cyclictest2379-21users10:11:170
42409915014,22cyclictest14523-21apt-get11:31:160
42409915011,26cyclictest22691-21snmpd11:07:040
42409915010,27cyclictest24141-21find12:26:130
42409914936,95cyclictest21177-21modprobe12:10:020
42409914935,20cyclictest8178-21apt-get10:50:340
42409914922,27cyclictest13940-21diskstats11:25:450
42409914917,26cyclictest21113-21df08:50:340
42409914910,116cyclictest24596-21wc12:30:390
42409914832,23cyclictest23234-21timerwakeupswit09:01:100
42409914826,100cyclictest0-21swapper12:00:410
42409914823,19cyclictest0-21swapper12:15:320
42409914822,21cyclictest0-21swapper08:30:350
42409914817,105cyclictest13858-21df08:05:360
42409914814,112cyclictest10534-21apt-get07:45:240
42409914812,27cyclictest436-21sendmail-mta07:20:490
42409914719,24cyclictest16885-21apt08:25:010
42409914717,23cyclictest12956-21apt-get08:00:320
42409914717,22cyclictest13726-21munin-run11:25:020
42409914717,104cyclictest23435-21apt-get09:05:350
42409914715,25cyclictest11631-21/usr/sbin/munin07:50:580
42409914715,111cyclictest10228-21wc11:01:140
42409914713,112cyclictest18838-21cat11:55:070
42409914713,109cyclictest3350-21/usr/sbin/munin10:20:470
42409914626,19cyclictest25873-21/usr/sbin/munin09:20:330
42409914617,105cyclictest21397-21diskstats12:10:480
42409914616,106cyclictest30254-21df_inode09:45:410
42409914611,26cyclictest29650-21ntpq09:41:040
42409914422,20cyclictest0-21swapper09:26:070
42409914417,25cyclictest31060-21df_inode09:50:470
42409914417,101cyclictest24352-21diskstats09:10:400
42409914416,26cyclictest11509-21diskstats11:10:470
42409914414,104cyclictest4149-21apt-get10:25:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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