On May 16, 2019, at 11:33 AM, Matthew Ahrens <mahr...@delphix.com> wrote:
> • Igor: There have been issues when root pools are expecting
> compression to be disabled (on SPARC?)
> • Allan: This has been the default in FreeBSD installer for ~2 years
> • Sef: Boot pools need to be different for each platform, but grub
> doesn’t seem like it needs to be different. Sef supports it being the default.
> • Compression=on has been the default in FreeNAS for several years; no
> complaints
> • *** Someone to take an action item to investigate benefits and
> issues, and write it up? (Matt will put out a call for someone to take
> ownership of this)
> openzfs / openzfs-developer / see discussions + participants + delivery
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So, unless I’m missing something, this is pretty trivial:
diff --git a/include/sys/zio.h b/include/sys/zio.h
index e69bf9208039..461cc8232394 100644
--- a/include/sys/zio.h
+++ b/include/sys/zio.h
@@ -140,7 +140,7 @@ enum zio_encrypt {
#define ZIO_COMPRESS_LEGACY_ON_VALUE ZIO_COMPRESS_LZJB
#define ZIO_COMPRESS_LZ4_ON_VALUE ZIO_COMPRESS_LZ4
-#define ZIO_COMPRESS_DEFAULT ZIO_COMPRESS_OFF
+#define ZIO_COMPRESS_DEFAULT ZIO_COMPRESS_LZ4
#define BOOTFS_COMPRESS_VALID(compress) \
((compress) == ZIO_COMPRESS_LZJB || \
That would set it to LZ4 by default; this is slightly different from using
"compress=on" when creating a pool or dataset.
Other than documentation changes, did I miss something? :)
Sean.
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