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Hello! i want to make my os run on real hardware. but sadly i can only get around 1fps but 600fps on virtual machine. so I'm wondering what graphics card is good At VBE.

and btw here's my OS
you can find it in github/nifanfa

It seems that older graphics cards are good at VBE. i noticed of ati rage xl 8mb. will it get higher fps?

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Got it!

Say do you have a repository of you code wat is the address? Thanks?

There is no reason to increase the font size for your posts.

VBE is not inherently slow. Even modern cards still sometimes (but not always, i.e., not for all tranfers) use memory mapped VRAM to transfer data. If writes to the framebuffer are slow, you are probably not using write combining (WC). Look up WC in the Wiki and Intel manuals, and set it up properly.

In addition to WC, you should also make sure you're not reading from the framebuffer. Reading is usually much slower than writing.

Hi Octocontrabass

i didn't read from video memory. I'm using double buffering

honeydatax wrote:Say do you have a repository of you code wat is the address? Thanks?

you can find it in github/nifanfa

Octocontrabass wrote:In addition to WC, you should also make sure you're not reading from the framebuffer. Reading is usually much slower than writing.

Hi Octocontrabass

i didn't read from video memory. I'm using double buffering

nifanfa wrote:Hello! i want to make my os run on real hardware. but sadly i can only get around 1fps but 600fps on virtual machine. so I'm wondering what graphics card is good At VBE.

and btw here's my OS
you can find it in github/nifanfa

哈哈哈，你在不在胡自成群里～

You should avoid Intel platforms if you want high-performance VBE. You generally should also avoid new systems and go with systems that are a bit dated. Although, modern AMD systems work pretty well.

rdos wrote:You should avoid Intel platforms if you want high-performance VBE. You generally should also avoid new systems and go with systems that are a bit dated. Although, modern AMD systems work pretty well.

Why is that (avoid Intel platforms)? And also why would "a bit dated" systems be faster?

davmac314 wrote:

rdos wrote:You should avoid Intel platforms if you want high-performance VBE. You generally should also avoid new systems and go with systems that are a bit dated. Although, modern AMD systems work pretty well.

Why is that (avoid Intel platforms)? And also why would "a bit dated" systems be faster?

Confused about this as well. Considering that the Linux Intel GPU drivers are plenty fast, there's a high probability that your doing something wrong if they're slow. The dated hardware argument only makes sense in the context of "this might be easier to program". But I generally find the Intel GPU manuals incredibly confusing and disorganized, especially since they went "Hey lets break tradition and organize our GPU registers alphabetically and not by category/address like everybody else". (What's ironic about that is they also wrote the AHCI and HDA specifications and didn't do that.)

benjixu wrote:

nifanfa wrote:Hello! i want to make my os run on real hardware. but sadly i can only get around 1fps but 600fps on virtual machine. so I'm wondering what graphics card is good At VBE.

and btw here's my OS
you can find it in github/nifanfa

哈哈哈，你在不在胡自成群里～

胡自成是谁？？？

um. I don't want to write a specified graphics card driver(that's is very difficult and it is not as compatible as VBE). and i just want a graphics card as fast as virtual machine.

i got 8fps on hd3000. and that's still pretty slow..