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small bump to ArenaAllocator minimum alloc size

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self-hosted parser benchmark:
throughput: 69.4 MiB/s => 72.2 MiB/s
This commit is contained in:
Andrew Kelley 2020-05-20 16:30:28 -04:00
parent 64c149ca19
commit ad4b591db1
1 changed files with 1 additions and 1 deletions
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2
lib/std/heap/arena_allocator.zig
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@ -46,7 +46,7 @@ pub const ArenaAllocator = struct {
}
fn createNode(self: *ArenaAllocator, prev_len: usize, minimum_size: usize) !*BufNode {
const actual_min_size = minimum_size + @sizeOf(BufNode);
const actual_min_size = minimum_size + (@sizeOf(BufNode) + 16);
const big_enough_len = prev_len + actual_min_size;
const len = big_enough_len + big_enough_len / 2;
const buf = try self.child_allocator.alignedAlloc(u8, @alignOf(BufNode), len);