Hi,
I want to ask, if deduplicated file content will be cached in linux kernel just
once for two deduplicated files.
To explain in deep:
- I use btrfs for whole system with few subvolumes with some compression on
some subvolumes.
- I have two directories with eclipse SDK with slightly differences (same
version, different config)
- I assume that given directories is deduplicated and so two eclipse
installations take place on hdd like one would (in rough estimation)
- I will start one of given eclipse
- linux kernel will cache all opened files during start of eclipse (I have
enough free ram)
- I am just happy stupid linux user:
1. will kernel cache file content after decompression? (I think yes)
2. cached data will be in VFS layer or in block device layer?
- When I will lunch second eclipse (different from first, but deduplicated from
first) after first one:
1. will second start require less data to be read from HDD?
2. will be metadata for second instance read from hdd? (I asume yes)
3. will be actual data read second time? (I hope not)
Thanks for answers,
have a nice day,
--
LuVar
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs"
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html