Ram disk Scratch Space

[Jonathan Aquilina]

Hi Wol,

I have 16gb of ram. When I was on gentoo I was using 9gb of ram as a ramdisk to help speed up compilation. You mention temp if its on the same disk aren’t you going to have no gains in performance like that?

Regards,
Jonathan


On 29/09/2019, 12:24, "LibreOffice on behalf of Wols Lists" <libreoffice-bounces at lists.freedesktop.org on behalf of antlists at youngman.org.uk> wrote:

    On 27/09/19 14:28, Jonathan Aquilina wrote:
    > I’m not sure it uses as much as it needs I have seen it max out at
    > around 6.1gb I know on gentoo, ok that is a source based distribution, I
    > had around 9gb of ram allocated as scratch space which greatly sped up
    > compile times.
    
    And are your compile options the same? In particular concerning parallel
    compilation?
    
    No, on linux it pulls absolutely everything it needs into cache
    (assuming the ram is available) and runs it from there. I notice you
    haven't said how much ram your system actually has ...
    
    If you really want to do something of the sort, I guess it might be
    using /tmp - is that set up as a tmpfs? Please note that the definition
    of /tmp says the contents may be lost at any time, so setting it up as
    tmpfs is a *sensible* thing to do. On the other hand, the contents of
    /var/tmp are defined as surviving a reboot (for things like crash
    recovery) so that should *not* be tmpfs.
    
    I run gentoo, and have a lot of tmpfs defined, but that's so that if
    something overflows available ram the compile doesn't need to care about
    it - it'll use all the ram available IFF it needs it.
    
    Cheers,
    Wol
    > 
    > Regards,
    > Jonathan Aquilina
    > Owner managing director
    > 
    > Phone (356) 20330099
    > Mobile (356) 79957942
    > 
    
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