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Compared to both lzo and zlib, zstd is the best all-around performer. Backport a kernel patch [1] (to both 5.4 and 5.10), in order to set it as default for ubifs, if available. [1] https://lore.kernel.org/linux-mtd/CAFLxGvwhtRY-6kT-sN=AgjvyssHb5qdTS6WQHkhKu3YrPuTkdw@mail.gmail.com/ Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
26 lines
744 B
Diff
26 lines
744 B
Diff
From dcdf415b740923530dc71d89fecc8361078473f5 Mon Sep 17 00:00:00 2001
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From: Rui Salvaterra <rsalvaterra@gmail.com>
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Date: Mon, 5 Apr 2021 16:11:55 +0100
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Subject: [PATCH] ubifs: default to zstd compression
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Compared to lzo and zlib, zstd is the best all-around performer, both in terms
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of speed and compression ratio. Set it as the default, if available.
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Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
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---
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fs/ubifs/sb.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/fs/ubifs/sb.c
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+++ b/fs/ubifs/sb.c
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@@ -53,6 +53,9 @@
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static int get_default_compressor(struct ubifs_info *c)
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{
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+ if (ubifs_compr_present(c, UBIFS_COMPR_ZSTD))
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+ return UBIFS_COMPR_ZSTD;
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+
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if (ubifs_compr_present(c, UBIFS_COMPR_LZO))
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return UBIFS_COMPR_LZO;
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