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2024-04-16 - 12:52

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

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.
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 highest latencies:
System rackfslot4s.osadl.org (updated Tue Apr 16, 2024 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1601221220,2chrt16010-21ld00:01:540
3254521160,3chrt32546-21/usr/sbin/munin00:31:090
2225021150,3chrt22246-21ntpq22:16:230
1911021130,2sleep019119-21grep23:10:030
1670621110,2chrt16707-21fschecks_time20:05:270
3112221090,2chrt31123-21sleep20:34:020
1507321090,3chrt15074-21sh23:01:520
2085221040,3chrt20853-21sh20:13:380
1428521040,2chrt14284-21ssh23:59:330
2601321000,2chrt26014-21sh20:23:520
297212850,2sleep029723-21processes21:32:180
240462850,3chrt24032-21ntpq19:15:470
29802840,2chrt2954-21ntpq00:36:220
322732830,2sleep032276-21sed21:36:500
223472830,2chrt22333-21ntpq20:15:550
14782760,2sleep01482-21cut23:36:030
15812650,1sleep01583-21grep20:40:020
88952640,2sleep08897-21grep23:50:010
134442640,2sleep013445-21ssh22:59:510
176372590,46sleep017636-21cp00:05:160
48722553,43sleep04906-21cat21:46:010
289542553,42sleep028945-21ntpq23:26:490
216652532,42sleep021675-21ntp_states19:11:050
294912523,41sleep029485-21ssh22:30:190
124792522,43sleep012504-21dpkg22:00:070
242652513,7sleep024169-21ssh22:20:400
143342503,7sleep014340-21ssh22:02:310
20428904919,22cyclictest0-21swapper22:14:070
271002480,2chrt27098-21/usr/sbin/munin19:21:230
20428904819,20cyclictest0-21swapper21:20:110
20428904818,21cyclictest0-21swapper22:27:310
20428904817,22cyclictest0-21swapper00:20:100
20428904813,18cyclictest0-21swapper22:49:000
20428904719,21cyclictest0-21swapper22:39:110
20428904718,22cyclictest0-21swapper23:24:030
20428904718,22cyclictest0-21swapper23:17:440
20428904718,22cyclictest0-21swapper21:54:400
20428904717,22cyclictest0-21swapper21:12:560
20428904717,20cyclictest0-21swapper22:42:590
148192473,34sleep014837-21/usr/sbin/munin21:05:420
85042463,35sleep08497-21apt-key19:50:090
27192463,36sleep02730-21ntpq21:41:370
26232460,2chrt2609-21ntpq20:40:530
2042890467,21cyclictest32691-21ssh23:34:050
20428904620,19cyclictest20919-21ssh00:10:550
1894824611,20sleep018959-21ntpq19:05:390
59862452,36sleep05988-21ssh23:44:400
2042890454,12cyclictest3193-21munin-run19:40:020
20428904521,16cyclictest26801-21ssh21:27:050
94632433,31sleep09457-21diskstats23:50:510
298682432,6sleep029871-21ssh00:26:200
2042890435,20cyclictest26451-21/usr/sbin/munin20:25:450
2042890434,20cyclictest30991-21df19:30:210
2042890434,19cyclictest12244-21ntpq19:55:580
20428904320,16cyclictest0-21swapper22:08:310
20428904314,22cyclictest0-21swapper21:19:230
118432431,5sleep00-21swapper21:00:230
2042890424,9cyclictest14796-21ntpq20:00:560
20428904217,18cyclictest25446-21snmpd19:48:190
20428904217,16cyclictest8119-21/usr/sbin/munin22:52:160
20428904215,20cyclictest0-21swapper19:41:210
20428904211,22cyclictest0-21swapper00:17:250
2042890415,28cyclictest10240-21ntpq20:55:550
2042890414,18cyclictest6553-21munin-run20:50:020
20428904111,23cyclictest0-21swapper19:25:350
2042890396,26cyclictest20332-21ntpq23:11:140
2042890395,27cyclictest7780-21ntpq20:51:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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