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  #1  
Old August 1st, 2003, 08:20 AM
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Ruatha Ruatha is offline
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Default Re: [OT] virtual memory

Quote:
Originally posted by Thermodyne:

No page file can cause problems. Some apps are written to use the page file for some data. This was done to free up system ram back in the day, but it still populates some code. Seti is an app that pages by default. IMHO 128megs is a ball park lower limit.
Still, if you don't use proggies that needs VM it's better to have none, as it then won't access the HD all the time.

Quote:

All things ram are done in 32’s, 32-64-128-256-512-1024. Try to work the page file size in the same increments. It eases the addressing load on the CPU.
This I seriously question!
What should be the reason for the CPU to have "easier adress load" with 33554432 Bytes (32M) or 32M-some (ex 30M)?
Every adress between the 24 and the 32M range uses the same adress length (actually, above 16M it uses the same registers IIRC).
And a modern PC is made for large adress lenghts, so it should make no significant change to the internal workload for the computer what size the page file is, the only difference is in the drive handling. (And as I've stated far below in fragmantazion, aka also drive issues)
Right?
Enlighten me.

[ August 01, 2003, 07:24: Message edited by: Ruatha ]
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  #2  
Old August 1st, 2003, 08:26 AM
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narf poit chez BOOM narf poit chez BOOM is offline
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Default Re: [OT] virtual memory

i read 2.5.

what's an SCSI?

and remember, when you open up a bunch of tabs, reload.

[ August 01, 2003, 07:27: Message edited by: narf poit chez BOOM ]
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Old August 1st, 2003, 09:07 AM
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Default Re: [OT] virtual memory

Quote:
Originally posted by narf poit chez BOOM:
i read 2.5.

what's an SCSI?

and remember, when you open up a bunch of tabs, reload.
Small Computer Systems Interface.

A interface for harddrives and other peripheals, instead of the AT/IDE bus and for example the parallel port.
Can be used for a various array of peripherals but is mainly used for disks.
Previously RAID was exlusive for SCSI (Redundant Array of Inexpensive Disks) but now you can do that in IDE with a RAID controller aswell.
The SCSI interface is smarter than IDE and has some inbuilt logic circuits that made it faster in shuffling data and SCSI disks where generally faster and larger than their ATA counterparts.
The differences are lessening all the time.
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Old August 1st, 2003, 09:26 AM
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Default Re: [OT] virtual memory

The configuration of virtual memory even depends on your Version of windows. i think windows xp can even manage multiple page-files.

On rule to speed up things is: if you have two drives, put them on different controllers. Put your resource-consuming application to the drive where the page file is NOT. So using the page file and reloading software components won't interfere.

It is not a good solution to turn of the virtual memory. If you run multiple applications, your system will soon need it. Btw: Windows usually writes first the data to disk, that appears to be less important( e.g. idle apps etc )

Quote:
All things ram are done in 32’s, 32-64-128-256-512-1024. Try to work the page file size in the same increments. It eases the addressing load on the CPU.
I think the cpu runs in protected mode anyways. So every address is 32-Bit. There are no more "far" and "short" jumps. the cpu accesses each (even)adress at the same speed.

[ August 01, 2003, 08:37: Message edited by: JoeViterbo ]
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Old August 1st, 2003, 09:51 AM
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Ruatha Ruatha is offline
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Default Re: [OT] virtual memory

I ran along time with 512M ram and no page file.
It's just when I started using many programs at once that I needed the VM, and then you get an error message telling you soo.
So there's no danger in trying to disable it and see if you can live without it.

I use XP an dhas most unnessacary services disabled or started when needed (Started automaticly then but actually in the services folder it says "Manual" )

And yes, in XP you can configure one page file for each drive if you wish.

[ August 01, 2003, 08:54: Message edited by: Ruatha ]
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Old August 1st, 2003, 11:57 AM

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Default Re: [OT] virtual memory

I run my comp with 512 mb RAM and no pagefile under Win XP fine too. I find that the only apps that need VM are resource-intensive 3-D games and graphics applications.
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Old August 1st, 2003, 10:38 PM
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Default Re: [OT] virtual memory

Quote:
Originally posted by Ruatha:
quote:
Originally posted by Thermodyne:

No page file can cause problems. Some apps are written to use the page file for some data. This was done to free up system ram back in the day, but it still populates some code. Seti is an app that pages by default. IMHO 128megs is a ball park lower limit.
Still, if you don't use proggies that needs VM it's better to have none, as it then won't access the HD all the time.

Quote:

All things ram are done in 32’s, 32-64-128-256-512-1024. Try to work the page file size in the same increments. It eases the addressing load on the CPU.
This I seriously question!
What should be the reason for the CPU to have "easier adress load" with 33554432 Bytes (32M) or 32M-some (ex 30M)?
Every adress between the 24 and the 32M range uses the same adress length (actually, above 16M it uses the same registers IIRC).
And a modern PC is made for large adress lenghts, so it should make no significant change to the internal workload for the computer what size the page file is, the only difference is in the drive handling. (And as I've stated far below in fragmantazion, aka also drive issues)
Right?
Enlighten me.

32 bit memory buss.
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