AW: [Openinteract-dev] More on: Preloading of everything

[<And...@Be...>]

Hi Antti,

We are still into OI1 and see similar behavior since we are using quite =
a lot of packages. Actually we hoped, that OI2 would show a different =
behavior - maybe s.o. has an idea ?


Cheers

Andreas

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Gesendet: Sonntag, 19. Juni 2005 17:02
An: ope...@li...
Betreff: [Openinteract-dev] More on: Preloading of everything


After a good night sleep I came to the conclusion that maybe providing a =

way not to preload everything is not very urgent and it might be good to =

delay it for a 2.x release.

But to give you some idea of what kind of benefits you might get from=20
not preloading everything, I did some poking around with a stick on =
Dicole.

By default the main apache thread takes up 61 Mb on startup. Leaving =
languages (2 full and one paritial) uninitialized frees ~1 Mb. Leaving =
SPOPS objects uninitialized frees ~3 Mb. Leaving Actions uninitialized =
frees ~27 Mb.

If all of these are left uninitialized, the main apache thread takes up=20
28,5 Mb. If the whole Context is left uninitialized, the main thread=20
takes up 23,5 Mb, so only about 5 Mb of Context is not in these three =
parts.

I also noticed that building the Setup hierarchy does a require on all=20
of the Setup classes and this, with their dependencies, seems to use=20
something like 6 Mb of space - much of which might be possible to avoid=20
and which is probably not used after startup.

I'm not really sure if OI2 will ever be really usable with CGI though.=20
Even if the required initialization could be dropped somewhere close to=20
25 Mb, after leaving the 7 mb of mod_perl apache, it still leaves 18 Mb=20
of modules to be initialized on each request. But it would still be nice =

to have a bit smaller apache threads when having multiple OI2=20
installations on the same machine and use CGI when developing, so that=20
one would not have to restart apache after each change.

- Antti


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