[desktop-discuss] JDS Login and Basic Registration

[Erwann Chenede]

Hi Ghee,

    Is there a bug logged already about this issue ?
    If not could you log one ?

          Thanks,

             Erwann

Ghee Teo wrote:
> Moinak Ghosh wrote:
>> Hi,
>>
>>   I observed that JDS login time in SX Build60 from pressing enter in
>> the login screen to a usable desktop was taking 15 seconds on my fairly
>> well-endowed desktop whereas Gnome login on Ubuntu on the same
>> system took much less time.
>>
>> So just to see the kind of I/O happening I ran iosnoop from the 
>> DTraceToolkit
>> and was surprised to see a JVM being started and dozens of accesses 
>> to JAR
>> files. It turned out to be the Basic Registration and Update manager 
>> tools
>> being started via these files:
>>
>> /usr/dt/config/Xsession.d/1001.swupnot
>> /usr/dt/config/Xsession.d/1099.br
>>
>   These packages
>
> SUNWupdatemgru
> SUNWbrg
>
>   are delivered by consolidation (SCN) outside desktop.
>> So I did the following:
>>
>> mv /usr/dt/config/Xsession.d/1001.swupnot <backup location>
>> mv /usr/dt/config/Xsession.d/1099.br <backup location>
>>
>> After that a reboot to clear any caching and this time JDS login time 
>> was
>> close to 8 seconds. Almost a 50% improvement!
>>
>> I wonder why we have these things in an execution path that has a direct
>> negative impact on user experience. These stuff should be started as low
>> priority processes in the background after the desktop has come up.
>> Windows has been doing this for years. 
>
>    You have an excellent point here, need to find out the owner and teach
> them how to do it properly though. I remember there was a long thread on
> complaining about the performances hogged by the update manager some 
> times
> back in opensolaris-discuss
>
> -Ghee
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> desktop-discuss at opensolaris.org


-- 
              Erwann Chénedé,
 Desktop Group, Sun Microsystems, Grenoble
 Phone  : +33 476 188 358       ext: 38358
[ I speak for myself, not for my employer ]