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Hello Neo,
thanks for the ConservativeSwapfileUsage variable for SYSTEM.INI. About memory
and swapfile usage. I use Window 98 (1st - 4.10.1998). My system has 192
MB's. When I boot up, I have 128 MB's free and my swapfile is 40 MB's. The
swapfile usage depends on the amount of RAM you have available. I obtain these
figures from Norton System Doctor.
One program which seems to have a memory/resource leak is QP Charts. While I am
using QPC, the amount of available GDI and USER resources drops 20%. To free up
most of my resources, I have to exit QPC and return.
About the RT speed: I think the Equis manual is referring to your available
bandwidth. If you are collecting data while doing an Exploration, you are using
up your bandwidth doing both simultaneously. This is particularly true while
using a 56K modem. The only way you could increase your speed would be to get
DSL or preferably Cable modem.
I spoke with Omega Research and asked them about their RadarScreen. I wanted to
know how much CPU Mhz and memory you needed to track 3,000 tickers <VBG> in
realtime. They told me you only needed a 350 Mhz with at least 128 MB,
preferably 256 MB. It's amazing how quickly PC's have progressed in speed and
capacity. The amount of CPU speed available dwarfs the amount needed to use the
most sophisticated tracking software on the market.
Daniel.
neo wrote:
> I believe that, although important, the processor and memory speed are over
> emphasised. The real bottleneck is your hard drive. It runs so much slower
> than any other part of the system. The key is to have your entire program
> and data in RAM. There are 2 things required. The first is to have enough.
> For me this is 512 MB. (This can be decreased by minimising other programs
> running. The 2nd is to look in the Microsoft Knowledge Base for an article
> on ConservativeSwapfileUsage. If this is set to =1 in [386Enh] of SYSTEM.INI
> it forces Windows to use all available RAM before the swapfile on your disk.
> Normally Windows will use 50% of RAM and then start using the swapfile on
> your disk. This is probably a holdover from when we had tiny MBs of RAM. If
> you have Norton SystemWorks or another program to monitor RAM and swapfile
> (virtual memory) used you will see the difference at once.
>
> In a recent example, in another program, I had pulled out a 128 MB card and
> the time it took to open a chart went from < 1 second to about 20 seconds as
> I saw my hard drive searching for the data.
>
> One other note. I have heard from various sources that programs leak memory.
> That is, if you use a program all, or part, of it will remain in RAM and not
> be available to other programs. I cannot confirm this. The program does stay
> in memory but I believe it is over written as needed. If this leak is true
> then it would help to reboot you system from time to time.
>
> Disclaimer: I have been doing this for well over a year with Win98 (1st Ed.)
> and it works great without a single problem. If you do this I have no
> responsibility for what might happen to your system. Look at MS's Knowledge
> Base and try it if YOU decide to. This is only my personal information.
>
> -----Original Message-----
> From: owner-metastock@xxxxxxxxxxxxx
> [mailto:owner-metastock@xxxxxxxxxxxxx]On Behalf Of Rance Nunes
> Sent: Friday, November 03, 2000 12:13 PM
> To: metastock@xxxxxxxxxxxxx
> Subject: Real-time screening of multiple stocks possible?
>
> In MetaStock Professional the documentation states that (paraphrasing)
> The Explorer’s performance is significantly slower on intraday data
> while collecting real-time data.
>
> Can real-time searches be performed in MetaStock Pro?
>
> If so what is the order of magnitude of stocks that can be screened in
> real-time? That is, if a real-time Exploration is designed, how many
> simultaneous stocks can be screened when using tick by tick information
> while
> collecting real-time data? (Say on a 1-Gigahertz Pentium III with 256 Megs
> of
> memory).
>
> Any assistance is appreciated.
>
> Thanks.
>
> Rance
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