pve-qemu-qoup/debian/patches/pve/0045-PVE-block-stream-increase-chunk-size.patch
Stefan Reiter 677d0d169f add alloc-track block driver patch
See added patches for more info, overview:
0044: slightly increase PBS performance by reducing allocations
0045: slightly increase block-stream performance for Ceph
0046: don't crash with block-stream on RBD
0047: add alloc-track driver for live restore

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
2021-03-16 20:53:18 +01:00

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Tue, 2 Mar 2021 16:34:28 +0100
Subject: [PATCH] PVE: block/stream: increase chunk size
Ceph favors bigger chunks, so increase to 4M.
---
block/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/stream.c b/block/stream.c
index 236384f2f7..a5371420e3 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -26,7 +26,7 @@ enum {
* large enough to process multiple clusters in a single call, so
* that populating contiguous regions of the image is efficient.
*/
- STREAM_CHUNK = 512 * 1024, /* in bytes */
+ STREAM_CHUNK = 4 * 1024 * 1024, /* in bytes */
};
typedef struct StreamBlockJob {