Bug 756172 - RFE: Change heuristics so swap partition is not very high for "small" disk VMs
Summary: RFE: Change heuristics so swap partition is not very high for "small" disk VMs
Alias: None
Product: Fedora
Classification: Fedora
Component: anaconda
Version: 18
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Vratislav Podzimek
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-11-22 21:09 UTC by James Antill
Modified: 2013-10-17 11:28 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-10-17 11:28:29 UTC
Type: ---

Attachments (Terms of Use)

Description James Antill 2011-11-22 21:09:49 UTC
Description of problem:

 If I create/install a VM for Fedora 16, and allocate 2GB of RAM and 8GB of disk space to it then I actually get an almost full 4GB system disk, as anaconda is allocating 4GB to the swap partition.
 I think it would be useful to do the following:

  If the disk size is < 100 GB ...
    1. Allocate no more than 5% of the disk to swap.
    2. Use a swapfile instead of a swap partition.

Comment 1 Vratislav Podzimek 2012-02-14 11:11:42 UTC
It's more difficult than it seems, because this behaviour would make hibernation malfunctioning in many cases. We are now changing the behaviour to set swap size same as the RAM size. Hope this will be better usable for VMs.

Comment 2 James Antill 2012-02-14 16:51:13 UTC
Taking 25% is better than 50%, but still really bad. Are you using swapfiles too though (if you do it's then easy to fix it post install).

Comment 3 Fedora End Of Life 2013-01-17 00:46:11 UTC
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Comment 4 Vratislav Podzimek 2013-01-17 12:31:24 UTC
This affects also the Fedora 18 installations.

Comment 5 Vratislav Podzimek 2013-10-17 11:28:29 UTC
This should be fixed in F20 installations. Anaconda should now default to at most 10 % of disk space (e.g. ~800 MB on an 8GB VM disk)

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