zfs/cmd/zstream
George Melikov 7eb2da21e9 zio_compress: introduce max size threshold
Now default compression is lz4, which can stop
compression process by itself on incompressible data.
If there are additional size checks -
we will only make our compressratio worse.

New usable compression thresholds are:
- less than BPE_PAYLOAD_SIZE (embedded_data feature);
- at least one saved sector.

Old 12.5% threshold is left to minimize affect
on existing user expectations of CPU utilization.

If data wasn't compressed - it will be saved as
ZIO_COMPRESS_OFF, so if we really need to recompress
data without ashift info and check anything -
we can just compress it with zero threshold.
So, we don't need a new feature flag here!

Signed-off-by: George Melikov <mail@gmelikov.ru>
2024-08-29 00:46:48 +03:00
..
Makefile.am build: rename FORCEDEBUG_CPPFLAGS to LIBZPOOL_CPPFLAGS 2024-08-27 12:53:27 -07:00
zstream.c Add ability to recompress send streams with new compression algorithm 2022-11-10 15:23:46 -08:00
zstream.h Add ability to recompress send streams with new compression algorithm 2022-11-10 15:23:46 -08:00
zstream_decompress.c zstream decompress: fix decompress size and output 2024-08-22 16:22:24 -07:00
zstream_dump.c Fix declarations of non-global variables 2022-10-18 11:05:32 -07:00
zstream_recompress.c zio_compress: introduce max size threshold 2024-08-29 00:46:48 +03:00
zstream_redup.c zstream: remove duplicate highbit64 definition 2024-08-09 14:31:41 -07:00
zstream_token.c Fix userland dereference NULL return value bugs 2022-09-30 17:02:57 -07:00