Initial size of dynamically growing disk images

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msanders
Posts: 2
Joined: 5. May 2008, 00:26

Initial size of dynamically growing disk images

Post by msanders »

I got the impression that installing a new system on a dynamically growing disk image is pretty slow due to the continuous need to grow the file system for every new packet.

How about adding an option for specifying a minimum initial size that will be immediately allocated?
atompkins
Posts: 1
Joined: 4. May 2017, 02:19

Re: Initial size of dynamically growing disk images

Post by atompkins »

+1
mpack
Site Moderator
Posts: 39134
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP

Re: Initial size of dynamically growing disk images

Post by mpack »

"I got the impression" doesn't sound like very strong evidence, and being the first +1 to a post from 2008 probably indicates that this suggestion may not be a runner...

In any case the observation is b******t. The guest filesystem is not grown at any time. All that happens is that an additional 1MB block may be appended to the VDI file. That takes very little time unless your host drive is incredibly slow and congested - in which case no amount of fiddling in the VBox code will improve matters much.
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