diff options
| -rw-r--r-- | src/include/storage/buf_internals.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/include/storage/buf_internals.h b/src/include/storage/buf_internals.h index 9cbf1fc3fad..33fcaf5c9a8 100644 --- a/src/include/storage/buf_internals.h +++ b/src/include/storage/buf_internals.h @@ -174,6 +174,10 @@ typedef struct buftag * Be careful to avoid increasing the size of the struct when adding or * reordering members. Keeping it below 64 bytes (the most common CPU * cache line size) is fairly important for performance. + * + * Per-buffer I/O condition variables are currently kept outside this struct in + * a separate array. They could be moved in here and still fit within that + * limit on common systems, but for now that is not done. */ typedef struct BufferDesc { |