Re: Pi program and hard disk usage

On Sep 28, 12:44 pm, user923005 <dcor...@xxxxxxxxx> wrote:
On Sep 27, 8:40 pm, mike3 <mike4...@xxxxxxxxx> wrote:
<snip>
To minimize disk access, load only the pieces that actually
participate in a given phase of the multiplication into memory. So
you do not load either original number or any partial product into
memory as a complete number. Just load the hunks that directly
participate in the given phase of multiplication from the first number
and the second and only create partial product storage large enough to
hold the intermediate results.

Well I've done something that should take away
some of that disk access. However I've noticed
something else. It seems that sometimes when I
run the program it can go through a loop fairly
quickly, but then at other times it seems to pause
and take longer. What could be causing this,
anyway? Is there any way to mitigate it as it seems
to cause a large performance drop.

.

Relevant Pages

  • Re: Pi program and hard disk usage
    ... participate in a given phase of the multiplication into memory. ... Just load the hunks that directly ... and the second and only create partial product storage large enough to ... but then at other times it seems to pause ...
    (comp.programming)
  • Re: Pi program and hard disk usage
    ... participate in a given phase of the multiplication into memory. ... Just load the hunks that directly ... and the second and only create partial product storage large enough to ... will see a lot of IRQs because you are using disk for memory. ...
    (comp.programming)
  • Re: Memory limit reached with Windows Mobile
    ... That would explain the memory problem - you just can't do that. ... You have to load stuff when it's ... All native DLLs get loaded ...
    (microsoft.public.pocketpc.developer)
  • Re: Memory limit reached with Windows Mobile
    ... That would explain the memory problem - you just can't do that. ... Once I reached the 12 Mb limit, I cannot load any DLLs, yet if I ... Actually, simply by loading our 18 Native DLLs, we reduce the Virtual ...
    (microsoft.public.pocketpc.developer)
  • Re: Generating one table with a terabyte of data
    ... Take any simple string matching issues and run them as external C code on the files before loading. ... not match the job but can be adjusted for greater performance by changing memory type or adjusting IO layouts. ... them after a bulk load. ... Another thing is to split the updates across file sets. ...
    (microsoft.public.sqlserver.dts)