[LinuxBIOS] Compressing the OLPC VSM?

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Tue May 23 20:52:00 CEST 2006


jardel wrote:
> Carl-Daniel Hailfinger wrote:
>> jardel wrote:
>>
>>> JCalg compression library is possible too, isn't ? It's open source and
>>> the source is already assembly optimized. It was available
>>> www.collakesoftware.com.
>>>
>> How small does JCalg compress the VSA module at the link below?
>>
>> http://laptop.org/pipermail/devel/attachments/20060521/e389e3ea/vsa_test.64k-0001.bin
>>
>>>>> 65536 vsa_test.64k-0001.bin
>>>>> 35587 vsa_test.64k-0001.bin.nrv2b
>>>>> 32143 vsa_test.64k-0001.bin.lzma
>>>>>        
>>>>>
>> If it is better than the lzma result, we may consider it.
>> But IIRC the JCalg author said that lzma should be better.
> 
> This is the result for compressing the file vsa_test.64k-0001.bin in
> 1 to 9 level compressions of JCalg:
> 
> 36382 vsa1.jc
> [...]
> 34970 vsa9.jc

OK, so it is worse than lzma. Thanks for checking that.

Regards,
Carl-Daniel
-- 
http://www.hailfinger.org/




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