From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: generating and compiling a very large file
Date: Sun, 3 Jun 2018 21:48:49 +0200
Date: 2018-06-03T21:48:49+02:00 [thread overview]
Message-ID: <pf1gn0$6m3$1@gioia.aioe.org> (raw)
In-Reply-To: b2d2bc59-7283-4a71-b949-2918cd515f90@googlegroups.com
On 2018-06-03 21:14, Stephen Leake wrote:
> On my 64bit 32GB ram Windows box running GNAT GPL 2017, this takes 1.5 minutes to compile; slow, but acceptable since I don't compile it very often. In a Debian 8 VM on that same box, allocated 1 GB ram, it takes 11 minutes. I can allocate more ram to that VM, but 1 GB is enough for everything else I do in it, and other people who might use this have slow/small machines.
I don't think it is memory. In my case when the compiler runs out of
memory it simply crashes with STORAGE_ERROR and prints the infamous BUG
REPORT box.
Do you use a shared folder? Because if the guest has files in a host's
shared folder that makes compilation drastically slower. You could try
rsync or winscp to copy files between the host and the guests instead of
shared folder.
> Is there anything I can do to the code to shorten the compile time? I have complete control over this; for example, I could combine all those Add_Goto statements into one line.
I know that using generic packages instances, even only in the
with-clause causes a huge impact on both space and time.
> A more drastic change would be to put all the numbers in a text file, read in at run time. I haven't tried that yet, mostly because some of those 'null' values are procedure'access in other parts of the file.
What about writing a small Ada program that generates an initialized object:
State : constant := ( large-generated-aggregate );
I used this approach to embed images.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2018-06-03 19:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-03 19:14 generating and compiling a very large file Stephen Leake
2018-06-03 19:48 ` Dmitry A. Kazakov [this message]
2018-06-03 21:43 ` Shark8
2018-06-04 21:56 ` Randy Brukardt
2018-07-13 7:04 ` Stephen Leake
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