📅 Original date posted:2015-11-29
📝 Original message:yes, you're right, it's just the percentage compressed (size reduction)
On 28/11/2015 4:30 PM, Jonathan Toomim wrote:
> It appears you're using the term "compression ratio" to mean "size
> reduction". A compression ratio is the ratio (compressed /
> uncompressed). A 1 kB file compressed with a 10% compression ratio
> would be 0.1 kB. It seems you're using (1 - compressed/uncompressed),
> meaning that the compressed file would be 0.9 kB.
>
> On Nov 28, 2015, at 6:48 AM, Peter Tschipper via bitcoin-dev
> <bitcoin-dev at lists.linuxfoundation.org
> <mailto:bitcoin-dev at lists.linuxfoundation.org>> wrote:
>
>> The following show the compression ratio acheived for various sizes
>> of data. Zlib is the clear
>> winner for compressibility, with LZOx-999 coming close but at a cost.
>>
>> range Zlib-1 cmp%
>> Zlib-6 cmp% LZOx-1 cmp% LZOx-999 cmp%
>> 0-250b 12.44 12.86 10.79 14.34
>> 250-500b 19.33 12.97 10.34 11.11
>>
>>
>>
>>
>>
>>
>
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Peter Tschipper [ARCHIVE] /
npub14s…653tk
2023-06-07 17:44:30
in reply to nevent1q…zqkj
Author Public Key
npub14sxt5nq5l8hfvd7yfcmh8gwjqhtzcc72vz2lcwd2uw0xlllwdayqk653tkPublished at
2023-06-07 17:44:30Event JSON
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"content": "📅 Original date posted:2015-11-29\n📝 Original message:yes, you're right, it's just the percentage compressed (size reduction)\n\nOn 28/11/2015 4:30 PM, Jonathan Toomim wrote:\n\u003e It appears you're using the term \"compression ratio\" to mean \"size\n\u003e reduction\". A compression ratio is the ratio (compressed /\n\u003e uncompressed). A 1 kB file compressed with a 10% compression ratio\n\u003e would be 0.1 kB. It seems you're using (1 - compressed/uncompressed),\n\u003e meaning that the compressed file would be 0.9 kB.\n\u003e\n\u003e On Nov 28, 2015, at 6:48 AM, Peter Tschipper via bitcoin-dev\n\u003e \u003cbitcoin-dev at lists.linuxfoundation.org\n\u003e \u003cmailto:bitcoin-dev at lists.linuxfoundation.org\u003e\u003e wrote:\n\u003e\n\u003e\u003e The following show the compression ratio acheived for various sizes\n\u003e\u003e of data. Zlib is the clear\n\u003e\u003e winner for compressibility, with LZOx-999 coming close but at a cost.\n\u003e\u003e\n\u003e\u003e range \tZlib-1 cmp%\n\u003e\u003e \tZlib-6 cmp% \tLZOx-1 cmp% \tLZOx-999 cmp%\n\u003e\u003e 0-250b \t12.44 \t12.86 \t10.79 \t14.34\n\u003e\u003e 250-500b \t19.33 \t12.97 \t10.34 \t11.11\n\u003e\u003e\n\u003e\u003e \t\n\u003e\u003e \t\n\u003e\u003e \t\n\u003e\u003e \t\n\u003e\u003e\n\u003e\n\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20151128/38398a67/attachment.html\u003e",
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