Re: What is the largest file I can edit using vim?

On 07/06/12 03:16, cellurl wrote:
> I have a 4GB text file.
> Q: Can I use vim to edit it?
> If not, any suggestions?
>
> thanks for publishing vim ;-)
>
> -cellurl
>

There are two kinds of limits:

1. Your processor must be able to address a single data-memory space
larger than the file.

See ":help limits" for 16- and 32-bit processors. 64-bit processors can
typically address all your installed RAM and swap memory as one linear
address space: see 2 below. (N.B. 2^63 = approx. 9.22e18)

2. Your total installed RAM and swap space must be larger than the file
+ the resident Vim code + whatever else you're running in parallel.

The largest file you can edit depends on the smaller of the limits
defined by 1 and 2 above.

Notes:
- It's no use having more installed memory than your processor can address;
- It's usually recommended not to have more swap than twice your
installed RAM. (Using swap too much might bring the system to the point
where all it's doing is waiting for disk heads to move to the right
record of your swapfile or swap partition. I've had the case, for
instance when linking the libxul of a Mozilla application at the end of
an own-compile in order to test a bugfix before landing it.)


Best regards,
Tony.
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