[Peeweelinux] General Information for Project

[Tom Schneider]

We're using J9 from IBM. (Websphere Micro Environment)  The first thing 
I did was remove all the source code.  Next, I removed all the class 
files for the profiles we were not using.  (We are using the Foundation 
profile, J9 also includes a CDC, CDLC and MIDP profile)  Then I went 
into the bin directory and figured out what libraries I needed.  I only 
included the libraries necessary for runtime, I removed all compile 
libraries.  Using this method I was able to trim J9 from about 30 megs 
down to about 5.
Tom


Ricardo Jorge Silva Trindade wrote:

>Hi,
>
>I'd be interested to know how you were able to trim the java vm. I once tried and the results weren't good
>
>-----Original Message-----
>From: Tom Schneider <tschneider@nvisia.com>
>To: peeweelinux@adis.on.ca
>Date: Tue, 03 Dec 2002 07:03:12 -0600 
>Subject: Re: [Peeweelinux] General Information for Project
>
>Barry Gershenfeld wrote:
>
>  
>
>>>How fast is CF when booting up? Would it be quicker than a hard drive?
>>>   
>>>
>>>      
>>>
>>CF is not as fast as a hard drive, from what I can find.  Especially
>>on writes, which may not matter here.   One thing peewee does in
>>this configuration (compressed ramdisk on memory card) on startup 
>>is to copy the filesystem into RAM, which can take a few seconds.
>> 
>>
>>    
>>
>We're using disk-on-chip which is significantly faster than a hard 
>driver for both reading and writing. (At least from what I've seen)  I 
>would think that CF would be just as fast, but I'm no expert on these 
>matters.
>
>  
>
>>>When people are talking about small linux distribution of PeeWee how small can
>>>I get it?  I need to have MySQL and Perl installed - is this realistic in a
>>>128MB card for example?
>>>Paul Nuzzo
>>>   
>>>
>>>      
>>>
>>It ought to be enough.  Peewee is very small, so the question
>>becomes, "how big is MySQL + perl ?"  I'd like to know
>>that myself for future planning.
>> 
>>
>>    
>>
>Our testing shows that MySQL is roughly 10 megs for a base install 
>(binary and empty database).  I'm not sure about perl. (we did java and 
>that was another 5 megs after we trimmed down the JVM)  Ultimately we 
>chose not do use MySQL because of licensing issues.  By the way, we're 
>running on a 64 meg disk-on-chip and had postgres, the JVM, ppp, the 
>latest kernel and a decent set of utilities running with room to spare.
>
>  
>
>>Barry
>>
>>_______________________________________________
>>Peeweelinux mailing list
>>Peeweelinux@adis.on.ca
>>http://mail.adis.on.ca/lists/listinfo/peeweelinux
>> 
>>
>>    
>>
>
>
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