From 69c914483d448cae05ebc4b658a331682532d3d3 Mon Sep 17 00:00:00 2001 From: Klaus Post Date: Fri, 18 Jun 2021 10:49:49 -0700 Subject: encode: Tweak compression settings (#4215) * Tweak compression settings zstd: Limit window sizes to 128K to keep memory in control both server and client size. zstd: Write 0 length frames. This may be needed for compatibility. zstd: Create fewer encoders. Small memory improvement. gzip: Allow -2 (Huffman only) and -3 (stateless) compression modes. * Update modules/caddyhttp/encode/zstd/zstd.go Update docs. Co-authored-by: Francis Lavoie Co-authored-by: Francis Lavoie --- modules/caddyhttp/encode/zstd/zstd.go | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'modules/caddyhttp/encode/zstd') diff --git a/modules/caddyhttp/encode/zstd/zstd.go b/modules/caddyhttp/encode/zstd/zstd.go index 5182fc4..d2a638c 100644 --- a/modules/caddyhttp/encode/zstd/zstd.go +++ b/modules/caddyhttp/encode/zstd/zstd.go @@ -47,7 +47,10 @@ func (Zstd) AcceptEncoding() string { return "zstd" } // NewEncoder returns a new gzip writer. func (z Zstd) NewEncoder() encode.Encoder { - writer, _ := zstd.NewWriter(nil) + // The default of 8MB for the window is + // too large for many clients, so we limit + // it to 128K to lighten their load. + writer, _ := zstd.NewWriter(nil, zstd.WithWindowSize(128<<10), zstd.WithEncoderConcurrency(1), zstd.WithZeroFrames(true)) return writer } -- cgit v1.2.3