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authorMax Kellermann <max@duempel.org>2010-05-19 23:29:13 +0200
committerMax Kellermann <max@duempel.org>2010-05-20 09:31:51 +0200
commited0b48040c41d2080e4abaa311a158d7115ef842 (patch)
treebce2fb0f22a83e1d57bbea39e4a79a9d3bb34a23 /src
parent9aeed069641d69d69290a802f3626d2e6d804abc (diff)
downloadmpd-ed0b48040c41d2080e4abaa311a158d7115ef842.tar.gz
mpd-ed0b48040c41d2080e4abaa311a158d7115ef842.tar.xz
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pcm_buffer: 8 kB alignment instead of 64 kB
Reduce the overhead. Most buffers used by MPD are around 2 to 4 kB. 8 kB seems large enough to keep heap fragmentation low. Additionally, this patch fixes an off-by-one error in the alignment formula.
Diffstat (limited to '')
-rw-r--r--src/pcm_buffer.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/pcm_buffer.h b/src/pcm_buffer.h
index 0046b7470..626851990 100644
--- a/src/pcm_buffer.h
+++ b/src/pcm_buffer.h
@@ -65,8 +65,8 @@ pcm_buffer_get(struct pcm_buffer *buffer, size_t size)
/* free the old buffer */
g_free(buffer->buffer);
- /* allocate a new buffer; align at 64kB boundaries */
- buffer->size = (size | 0xffff) + 1;
+ /* allocate a new buffer; align at 8 kB boundaries */
+ buffer->size = ((size - 1) | 0x1fff) + 1;
buffer->buffer = g_malloc(buffer->size);
}