A server can also restrict the byte range of a Write layout to avoid quota limits or to reduce allocation overhead, among other reasons.

服务器还能限制Write布局的字节范围，以避免配额限制或减少分配开销等等。

youdao

In addition, the row format of value compression has a two-byte overhead per row.

此外，值压缩的行格式会为每一行占用两个字节。

youdao

Each object allocated on the GC heap has an 8-byte overhead (sync block + method table pointer).

每个在GC堆中分配的对象有一个8字节的头(同步块+方法表指针)。

youdao