Re: pdf creation and memory management.

[Shane Brandes]

Yes seems good advice. I had not really thought much about what is in
the actual machine for a long time. Nor was I aware RAM had dropped in
price so considerably.

Shane

On Thu, Jan 6, 2011 at 3:44 PM, Nick Payne <address@hidden> wrote:
> On 07/01/11 05:03, Shane Brandes wrote:
>>
>> Greetings all,
>>
>>    This is a question regarding the unseen forces of actually creating
>> a PDF. Yesterday. I ran a pdf generation that included 3 files each
>> file on its own takes approximately 3-4.5 minutes to generate a PDF
>> image, but together they took 7.5 hours and 2 seconds. The resulting
>> document 29 pages 900 kbs. I have run multiple files before to
>> generate single documents before that yielded similar page lengths but
>> never of such density note wise (on looking largest was 700kbs which
>> took an hour or thereabouts. The question is this, because of the
>> complex nature of these scores the machine required the use of swap
>> memory. I checked at one point and it was eating 1.2 gigs worth, which
>> really ties up the whole machine. I don't think Lilypond with the
>> things I have "compiled" before has ever needed swap memory before. is
>> this the Achilles heel that is slowing down the machine so
>> substantially or is it mostly the fact that adding such complex files
>> together simply causes such slowness to occur? I ask since I will have
>> to run this file at least twice more. (My corrections and some other
>> editors.) And I have yet to add the orchestral parts which may at that
>> point make it a whole day affair. And if this becomes more common
>> practice it might be worth investing in more RAM if that is the big
>> bottle neck.
>>
>> Shane
>>
>> (Athlon 64 X2 4600+ 1g RAM
>> Ubuntu 10.04 ) not exactly the fastest machine but it generally gets
>> things done efficiently enough.
>
> Given how cheap RAM is these days (around $10/Gb), it sounds as though it
> would be worth your while doubling or quadrupling the RAM to eliminate the
> swapping to disk.
>
> Nick
>
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