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keep in mind we have been "researching" this for past 2 years, so we are not staring from 0 here...
things we did so far:
- ver 1 jpeg compression - 3x speed of wz jpeg with slightly better compression. Aim in PAF: maintain similar super speed while adding extra 20% compression compared to WZ Jpeg.
- ver 1 differential and versioning system - compared to leading Mozy backup service, we had 30% smaller differential backups (which means 30% faster, 30% more effcient, 30% less costly for bandwith and storage space), without strong compression implemented... Goal is to tie it together into PAF and enable stronger compression that would give us 50% gain total.
- Various multicore research into improving speed for other operations during compression, not just compression codec, that should add extra 20-30% speed improvements over current formats (with similar codecs).
- modification of lzma2 codec into pa-lzma, to fit our format better, and better overall performance (to be released as open source), this is 80% done as it is...
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