Re: Quality-of-Life patches

[Viacheslav Usov <via.usov@...>]

On Thu, Feb 24, 2022 at 11:53 PM Roberto Ierusalimschy
<roberto@inf.puc-rio.br> wrote:

> Statically-linked packages are already served by preload, you should not
> need a new searcher for that.

This may be only slightly related to the original topic, but, in
general, preload works well only when the number of static libraries
is small and the act of preloading is not costly. To illustrate costly
preloading, consider luasocket: it is a mix of C and Lua modules. When
they are really fully embedded statically, that means the Lua files
are also embedded (as original strings or pre-compiled byte code) and
to be "preloaded" those strings or byte code must actually be loaded
into the new Lua VM, memory allocated, etc. When you have
preload-costly embedded libraries, or just really many embedded
libraries and many Lua VMs in your application, you have to consider
the cost of preloading, it may have a noticeable effect on
performance.

Cheers,
V.