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[Taco Hoekwater <taco@xxxxxxxxxxxxx>]

Yue Wang wrote:

> In my humble opinion this is because TeX manages memory by it self...
> and maybe a 64bit memory word of packed data uses twice of memory as
> 32bits one.... I am not sure.

It could be because web2c by default declares the integer type as
"long int" on 64-bit platforms, and that that is what makes everything
twice the size, but the --enable-dump-share argument to configure is
supposed to prevent it from doing so, so it seems something odd is
going on. Can you try to check the sizeof(integer) within a debugger?

(the 64bit linux is indeed faster than the 32bit linux on the same
hardware)

Best wishes,
Taco