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Compression on L2 cache?
Posted: Tue Jun 28, 2011 1:18 pm
by kukreknecmi
Does Fancy Cache supports/operates compression? I guess readyboost is using some kind of compression and it is said more or less it success around 2:1 compression. I wonder if fancycache support any kind of compression on L1 or L2, or if there isnt any, are any plans on implementing a compression. Something like compcache i guess.
Re: Compression on L2 cache?
Posted: Tue Jun 28, 2011 10:58 pm
by intika
good idea ! may be if we could set the compression level it will be better...
i don't think it support compression for now, but support will tell exactly...
don't forget that compression will use cpu... make computer hotter, and user more battery on laptop...
Re: Compression on L2 cache?
Posted: Wed Jun 29, 2011 1:53 am
by Support
Currently we've no plan to support compression. The compression increases cache capacity, but it degrade the access speed.
Re: Compression on L2 cache?
Posted: Thu Jun 30, 2011 7:21 am
by sparkler
yes but its still faster access time then a hdd
Re: Compression on L2 cache?
Posted: Thu Jun 30, 2011 7:24 am
by intika
i think this stuff will make the machine buggy when you will be using a lot of softs at same time... maybe developer should test and see
Re: Compression on L2 cache?
Posted: Thu Jun 30, 2011 7:37 am
by Nina
I believe that it's possible to get the same result if you're using NTFS compression.. Compressed NTFS data chunks will be cached as it is in Fancy Cache buffer.. Maybe I'm wrong..
Re: Compression on L2 cache?
Posted: Thu Jun 30, 2011 7:58 am
by intika
oho ! good idea Nina

! ... but one the data is read it's uncompressed... it depend on how fc work...
Re: Compression on L2 cache?
Posted: Thu Jun 30, 2011 11:30 pm
by sparkler
NTFS compression requires an NTFS partition that journals data = more wear to SSD also the MTF wastes quite a bit of space
Re: Compression on L2 cache?
Posted: Fri Jul 01, 2011 1:19 am
by BikeHelmet
sparkler wrote:NTFS compression requires an NTFS partition that journals data = more wear to SSD also the MTF wastes quite a bit of space
That can't be true.
fsutil usn queryjournal reports that journaling is off for my drives, yet I'm definitely using NTFS compression. (How else would I fit 600GB of Steam games on a 500GB partition?)
I seem to recall the journal also being visible in Defraggler, but after turning it off it vanished. They don't seem to be connected. It's definitely possible to have one
or the other on XP.