v20250930-0022-try-LZ4_compress_fast.patch
text/x-patch
Filename: v20250930-0022-try-LZ4_compress_fast.patch
Type: text/x-patch
Part: 21
Patch
Same data as JSON:
GET /api/v1/attachments/:id/patch
the parsed metadata as JSON — format, series position, per-file stats; never the diff bytes.
API reference →
Format: format-patch
Series: patch v20250930-0022
Subject: try LZ4_compress_fast
| File | + | − |
|---|---|---|
| src/backend/storage/file/buffile.c | 4 | 3 |
From ee08e8b8c6d0de57ce9c478afd1ce89aebafce94 Mon Sep 17 00:00:00 2001
From: Tomas Vondra <tomas@vondra.me>
Date: Tue, 30 Sep 2025 13:00:10 +0200
Subject: [PATCH v20250930 22/22] try LZ4_compress_fast
---
src/backend/storage/file/buffile.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c
index 881fc44faa3..e3d4e2a342e 100644
--- a/src/backend/storage/file/buffile.c
+++ b/src/backend/storage/file/buffile.c
@@ -774,9 +774,10 @@ BufFileDumpBuffer(BufFile *file)
* The length is stored at the beginning, we'll fill it in
* at the end.
*/
- cSize = LZ4_compress_default(file->buffer.data,
- cData + sizeof(CompressHeader),
- file->nbytes, cBufferSize);
+ cSize = LZ4_compress_fast(file->buffer.data,
+ cData + sizeof(CompressHeader),
+ file->nbytes, cBufferSize,
+ 10); /* somewhat higher value */
if (cSize == 0)
{
ereport(ERROR,
--
2.51.0