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PureBytes Links
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Great link. Thanks for the post.
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "tuzo_wilson" <j.tuzo.wilson@xxx> wrote:
>
> If anyone is interested in a technical article around windows memory, Mark Russinovich has a great blog post called Pushing the Limits of Windows: Virtual Memory at http://blogs.technet.com/markrussinovich/archive/2008/11/17/3155406.aspx where he covers topics such as virtual memory, private bytes, committed memory, etc.
>
>
> Tuzo
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
> >
> > Hello,
> >
> > Windows Task Manager you say.
> > Do you know that WTM can display dozen of different "memory usage" figures
> > and most of them are misleading?
> > Windows works with Virtual memory. RAM is NOT allocated to process. Virtual memory is.
> > Then, on the fly, virtual memory pages are mapped to RAM and used, but one second later
> > the same RAM cells can be (re)used by different process and different virtual memory address.
> >
> > So called "mem usage" in WTM is not total memory usage, but working set size.
> > http://technet.microsoft.com/en-us/library/cc938567.aspx
> >
> > Total memory usage is shown as "private bytes" (aka "virtual memory size").
> >
> > Also if you run 32 bit OS, it will allow only 2GB to be used for apps, regardless how much RAM you have
> > (or 3GB with /LARGEADDRESSAWARE and /3G boot ini switch)
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
> > ----- Original Message -----
> > From: "reefbreak_sd" <reefbreak_sd@>
> > To: <amibroker@xxxxxxxxxxxxxxx>
> > Sent: Tuesday, November 17, 2009 6:58 AM
> > Subject: [amibroker] Re: How much ram is being used.
> >
> >
> > > The details are different on various Windows versions, but press CTRL+ALT+DELETE and you will get windows task manager. Click on
> > > the Performance dropdown and you can see your memory usage as you run and exit various programs.
> > >
> > > Just for Example:
> > > I run Win Vista (hate it !) with 4gbytes of RAM. I run AB in real time mode with data from IQ Feed. One processor runs AB and
> > > the other processor runs IQ Feed data manager. Both CPU's are busy about 50% of the time and I'm using just over 2gbytes or RAM.
> > > There is no page file activity on the disk.
> > >
> > > ReefBreak
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "jmdeacon" <jmdeacon@> wrote:
> > >>
> > >> I am considering buying a new computer and was wondering if there was a way to figure out how much Ram I am using. I am not a
> > >> programmer by profession and have self taught myself a fair amount, but sometimes my assumptions about computers etc are just
> > >> plain wrong, so let me no if my thinking is correct.
> > >>
> > >> I noticed when I run an optimization, the first pass will take about 3 minutes and then each subsequent step takes about 1
> > >> minute. I noticed a while ago that when I installed more ram, the first step time did not change as much as the additional step
> > >> times. I am assuming that the amount of ram is part of this. If the amount of ram is more than the amount of data loaded in to
> > >> be tested, then I will minimize the time for each additional step after the first pass.
> > >>
> > >> If I am correct of this, is there a way to find out how much ram that threshold is on my system?
> > >>
> > >> Thanks,
> > >>
> > >> John
> > >>
> > >
> > >
> > >
> > >
> > > ------------------------------------
> > >
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> >
>
------------------------------------
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