From: Kevin Wolf <kwolf@redhat.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>
Subject: [Qemu-devel] [PATCH] qcow2: Change default cluster size to 64k
Date: Tue, 16 Jun 2009 12:53:25 +0200 [thread overview]
Message-ID: <1245149605-29320-1-git-send-email-kwolf@redhat.com> (raw)
Larger cluster sizes mean less metadata. This has been discussion a few times,
let's do it now. This turns 64k clusters on by default for new images.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/qcow2.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 8604e6a..9acbddf 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -782,7 +782,7 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options)
const char *backing_fmt = NULL;
uint64_t sectors = 0;
int flags = 0;
- size_t cluster_size = 4096;
+ size_t cluster_size = 65536;
/* Read out options */
while (options && options->name) {
--
1.6.0.6
reply other threads:[~2009-06-16 10:54 UTC|newest]
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