*Game Cache Update* Is the built in compression. For vm’s you can sometimes get 5-10x compression because vms are mostly empty space. ZFS does compression transparently. Right now as part of the eldest’s game cache her system thinks it has written 75 gigabytes of data. ZFS compression has reduced that down to 52.5G in the background. This is roughly a 1.41x reduction in size just from basic compression. Normally with my file types(movies, music..mainly stuff that is already compressed) I do not see any real compression. With her steam apps the compression is much higher. It will be interesting to see if it goes up or down as she loads up the rest of her games.
NAME PROPERTY VALUE SOURCE
Data/Steamcache type volume –
Data/Steamcache creation Tue Nov 19 17:11 2019 –
Data/Steamcache used 52.5G –
Data/Steamcache available 4.17T –
Data/Steamcache referenced 52.5G –
Data/Steamcache compressratio 1.41x –
Data/Steamcache reservation none default
Data/Steamcache volsize 1.00T local
Data/Steamcache volblocksize 128K –
Data/Steamcache checksum on default
Data/Steamcache compression lz4 inherited from Data
Data/Steamcache readonly off default
Data/Steamcache copies 1 inherited from Data
Data/Steamcache refreservation none default
Data/Steamcache primarycache all default
Data/Steamcache secondarycache all default
Data/Steamcache usedbysnapshots 0 –
Data/Steamcache usedbydataset 52.5G –
Data/Steamcache usedbychildren 0 –
Data/Steamcache usedbyrefreservation 0 –
Data/Steamcache logbias latency default
Data/Steamcache dedup off default
Data/Steamcache mlslabel –
Data/Steamcache sync disabled inherited from Data
Data/Steamcache refcompressratio 1.41x –
Data/Steamcache written 52.5G –
Data/Steamcache logicalused 74.0G –
Data/Steamcache logicalreferenced 74.0G –
Data/Steamcache volmode default default
Data/Steamcache snapshot_limit none default
Data/Steamcache snapshot_count none default
Data/Steamcache redundant_metadata all default
Data/Steamcache org.freebsd.ioc:active yes inherited from Data