[haiku-bugs] Re: [Haiku] #7742: SWAP file constantly recreated, takes up alot of space

  • From: "axeld" <trac@xxxxxxxxxxxx>
  • Date: Thu, 30 Aug 2012 20:44:58 -0000

#7742: SWAP file constantly recreated, takes up alot of space
-----------------------------------------+----------------------------
   Reporter:  Cypress                    |      Owner:  axeld
       Type:  bug                        |     Status:  new
   Priority:  normal                     |  Milestone:  R1
  Component:  Preferences/VirtualMemory  |    Version:  R1/Development
 Resolution:                             |   Keywords:
 Blocked By:                             |   Blocking:
Has a Patch:  1                          |   Platform:  All
-----------------------------------------+----------------------------

Comment (by axeld):

 I'm not fond of the suggested solution. First of all, the swap file should
 be enabled by default as Ryan pointed out when there is no settings file.

 Second of all, it makes no sense to have a settings file by default, as
 the size of RAM, and available HD space are not constants. Also, the
 kernel should not create a settings file for the same reason: move the
 installation to a new system, and the same heuristic should determine the
 best swap file size, instead of using whatever else was good at some other
 point in time (unless the user changes the setting, that is).

 The best solution is to have a syscall that returns the current swap file
 configuration (if there isn't already), and have VirtualMemory always show
 this. When you change the settings, it will create a settings file that is
 then honoured by the kernel on the next boot. VirtualMemory should
 probably have a setting "automatic" which is the default in which case it
 would delete the settings file.

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/7742#comment:7>
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