Felix Winkelmann felix.winkelm...@bevuta.com writes:
From: Andy Bennett andy...@ashurst.eu.org
Subject: mmap (was: Re: [Chicken-hackers] library unit restructuring)
Date: Wed, 09 Jul 2014 14:56:38 +0100
Hi,
- memory-mapped-files
Without wishing to hijack the entire thread, as an
Felix Winkelmann scripsit:
Since nobody replied to this - I wouldn't know how this is done. I
guess there is some UNIX arcana that allows one to implement
non-blocking behaviour. As memory access will cause the blocking, we
can probably not check for this via poll/select. Do you have any
Hi,
There is no way to do this. By messing around with Linux-specific
mmap() flags, you can get Linux to prepage the whole file, paying the
entire cost at once,
Yes. These methods don't strike me as a very good way forward.
I was thinking more along the lines of executing FFI calls in a
From: Andy Bennett andy...@ashurst.eu.org
Subject: Re: [Chicken-hackers] mmap
Date: Fri, 11 Jul 2014 14:16:27 +0100
Hi,
There is no way to do this. By messing around with Linux-specific
mmap() flags, you can get Linux to prepage the whole file, paying the
entire cost at once,
Yes
Hi,
Andy, can you elaborate on the blocking scenario you are seeing?
My particular scenario is that I'm using SQLite with a pool of many
database connections and I'm seeing those connections use a lot of
memory that could be shared by using the SQLites mmap functionality
rather than it's
I'm resending this as I don't appear to have received it back from the
list??
Original Message
Subject: mmap (was: Re: [Chicken-hackers] library unit restructuring)
Date: Wed, 09 Jul 2014 14:56:38 +0100
From: Andy Bennett andy...@ashurst.eu.org
To: Felix Winkelmann
Hi,
- memory-mapped-files
Without wishing to hijack the entire thread, as an aside, is there any
way of making memory mapped files play nicely with the CHICKEN scheduler
and threading model? It's possible for memory mapped files to cause a
page fault which will then wait for I/O and, as I
