Moving fontconfig cache out of tmpfs

Moving fontconfig cache out of tmpfs

[Stefan Schmidt]

Hello.

Raster found out a pretty interestesting optimization option.

At the moment we refer to the fontconfig cahc elike this in
/etc/fonts/fonts.conf:

<cachedir>/var/cache/fontconfig</cachedir>

/var/cache is a symlink to var/volatile/cache which is mounted as tmpfs.

This means that the cache has to regenerated on every boot. This can cost up to
20s.

What do people think about pointing this to something not mounted as tmpfs? Any
problems I'm not aware of?

regards
Stefan Schmidt

Re: Moving fontconfig cache out of tmpfs

[Julien Cassignol]

On Mon, Nov 17, 2008 at 4:19 PM, Stefan Schmidt
<stefan@datenfreihafen.org> wrote:

> What do people think about pointing this to something not mounted as tmpfs? Any
> problems I'm not aware of?

As I just told Stefan, we already applied this tiny hack to SHR
postrootfs (even if I'd like to do that any other "proper" way), and
it's quite handy.

-- 
Julien Cassignol
http://www.ainulindale.net

Re: Moving fontconfig cache out of tmpfs

[Koen Kooi]

On 17-11-08 16:19, Stefan Schmidt wrote:
> Hello.
>
> Raster found out a pretty interestesting optimization option.
>
> At the moment we refer to the fontconfig cahc elike this in
> /etc/fonts/fonts.conf:
>
> <cachedir>/var/cache/fontconfig</cachedir>
>
> /var/cache is a symlink to var/volatile/cache which is mounted as tmpfs.
>
> This means that the cache has to regenerated on every boot. This can cost up to
> 20s.
>
> What do people think about pointing this to something not mounted as tmpfs? Any
> problems I'm not aware of?

+1 for pointing it to /var/lib/fontconfig

regards,

Koen

Re: Moving fontconfig cache out of tmpfs

[Leon Woestenberg]

Hello,

On Mon, Nov 17, 2008 at 4:19 PM, Stefan Schmidt
<stefan@datenfreihafen.org> wrote:
> What do people think about pointing this to something not mounted as tmpfs?

> Any problems I'm not aware of?
>
Read-only filesystems :-) But let's check www.fhs.org:

/var/lib/: "State information should generally remain valid after a reboot,"
/var/cache/: "Files located under /var/cache may be expired in an
application specific manner, by the system administrator, or both. The
application must always be able to recover from manual deletion of
these files (generally because of a disk space shortage)"

/var/lib/ looks fine to me.

Read-only systems without nv storage should probably copy/mount
/var/lib/ to volatile upon boot.

Regards,
-- 
Leon

Re: Moving fontconfig cache out of tmpfs

[Stefan Schmidt]

Hello.

On Mon, 2008-11-17 at 19:47, Leon Woestenberg wrote:
> 
> /var/lib/ looks fine to me.

Luckily fontconfig already has a configure option for the cache dir. Only some
small EXTRA_OECONF fiddeling was needed.

People are fine with this?

diff --git a/packages/fontconfig/fontconfig.inc b/packages/fontconfig/fontconfig.inc
index 252b843..9af3540 100644
--- a/packages/fontconfig/fontconfig.inc
+++ b/packages/fontconfig/fontconfig.inc
@@ -18,7 +18,7 @@ inherit autotools pkgconfig
 
 export HASDOCBOOK="no"
 
-EXTRA_OECONF = " --disable-docs"
+EXTRA_OECONF = " --disable-docs --with-cache-dir=/var/lib/fontconfig"
 EXTRA_OEMAKE = "FC_LANG=fc-lang FC_GLYPHNAME=fc-glyphname"
 
 # The tarball has some of the patched files as read only, which
diff --git a/packages/fontconfig/fontconfig_2.6.0.bb b/packages/fontconfig/fontconfig_2.6.0.bb
index 3f7eca4..d6c1019 100644
--- a/packages/fontconfig/fontconfig_2.6.0.bb
+++ b/packages/fontconfig/fontconfig_2.6.0.bb
@@ -24,7 +24,7 @@ inherit autotools pkgconfig
 
 export HASDOCBOOK="no"
 
-EXTRA_OECONF = " --disable-docs --with-arch=${HOST_ARCH}"
+EXTRA_OECONF = " --disable-docs --with-arch=${HOST_ARCH} --with-cache-dir=/var/lib/fontconfig"
 EXTRA_OEMAKE = "FC_LANG=fc-lang FC_GLYPHNAME=fc-glyphname"
 
 # The tarball has some of the patched files as read only, which

regards
Stefan Schmidt

Re: Moving fontconfig cache out of tmpfs

[Koen Kooi]

On 18-11-08 22:00, Stefan Schmidt wrote:
> Hello.
>
> On Mon, 2008-11-17 at 19:47, Leon Woestenberg wrote:
>> /var/lib/ looks fine to me.
>
> Luckily fontconfig already has a configure option for the cache dir. Only some
> small EXTRA_OECONF fiddeling was needed.

Does it create the dir at runtime, or do we have to package it?

regards,

Koen

>
> People are fine with this?
>
> diff --git a/packages/fontconfig/fontconfig.inc b/packages/fontconfig/fontconfig.inc
> index 252b843..9af3540 100644
> --- a/packages/fontconfig/fontconfig.inc
> +++ b/packages/fontconfig/fontconfig.inc
> @@ -18,7 +18,7 @@ inherit autotools pkgconfig
>
>   export HASDOCBOOK="no"
>
> -EXTRA_OECONF = " --disable-docs"
> +EXTRA_OECONF = " --disable-docs --with-cache-dir=/var/lib/fontconfig"
>   EXTRA_OEMAKE = "FC_LANG=fc-lang FC_GLYPHNAME=fc-glyphname"
>
>   # The tarball has some of the patched files as read only, which
> diff --git a/packages/fontconfig/fontconfig_2.6.0.bb b/packages/fontconfig/fontconfig_2.6.0.bb
> index 3f7eca4..d6c1019 100644
> --- a/packages/fontconfig/fontconfig_2.6.0.bb
> +++ b/packages/fontconfig/fontconfig_2.6.0.bb
> @@ -24,7 +24,7 @@ inherit autotools pkgconfig
>
>   export HASDOCBOOK="no"
>
> -EXTRA_OECONF = " --disable-docs --with-arch=${HOST_ARCH}"
> +EXTRA_OECONF = " --disable-docs --with-arch=${HOST_ARCH} --with-cache-dir=/var/lib/fontconfig"
>   EXTRA_OEMAKE = "FC_LANG=fc-lang FC_GLYPHNAME=fc-glyphname"
>
>   # The tarball has some of the patched files as read only, which
>
> regards
> Stefan Schmidt

Re: Moving fontconfig cache out of tmpfs

[Carsten Haitzler]

On Tue, 18 Nov 2008 22:00:44 +0100 Stefan Schmidt <stefan@datenfreihafen.org>
babbled:

> Hello.
> 
> On Mon, 2008-11-17 at 19:47, Leon Woestenberg wrote:
> > 
> > /var/lib/ looks fine to me.
> 
> Luckily fontconfig already has a configure option for the cache dir. Only some
> small EXTRA_OECONF fiddeling was needed.
> 
> People are fine with this?

thumbsup++ :)

> diff --git a/packages/fontconfig/fontconfig.inc
> b/packages/fontconfig/fontconfig.inc index 252b843..9af3540 100644
> --- a/packages/fontconfig/fontconfig.inc
> +++ b/packages/fontconfig/fontconfig.inc
> @@ -18,7 +18,7 @@ inherit autotools pkgconfig
>  
>  export HASDOCBOOK="no"
>  
> -EXTRA_OECONF = " --disable-docs"
> +EXTRA_OECONF = " --disable-docs --with-cache-dir=/var/lib/fontconfig"
>  EXTRA_OEMAKE = "FC_LANG=fc-lang FC_GLYPHNAME=fc-glyphname"
>  
>  # The tarball has some of the patched files as read only, which
> diff --git a/packages/fontconfig/fontconfig_2.6.0.bb
> b/packages/fontconfig/fontconfig_2.6.0.bb index 3f7eca4..d6c1019 100644
> --- a/packages/fontconfig/fontconfig_2.6.0.bb
> +++ b/packages/fontconfig/fontconfig_2.6.0.bb
> @@ -24,7 +24,7 @@ inherit autotools pkgconfig
>  
>  export HASDOCBOOK="no"
>  
> -EXTRA_OECONF = " --disable-docs --with-arch=${HOST_ARCH}"
> +EXTRA_OECONF = " --disable-docs --with-arch=${HOST_ARCH}
> --with-cache-dir=/var/lib/fontconfig" EXTRA_OEMAKE = "FC_LANG=fc-lang
> FC_GLYPHNAME=fc-glyphname" 
>  # The tarball has some of the patched files as read only, which
> 
> regards
> Stefan Schmidt
> 
> _______________________________________________
> Openembedded-devel mailing list
> Openembedded-devel@lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
> 


-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    raster@rasterman.com

Re: Moving fontconfig cache out of tmpfs

[Stefan Schmidt]

Hello.

On Tue, 2008-11-18 at 22:44, Koen Kooi wrote:
> On 18-11-08 22:00, Stefan Schmidt wrote:
>>
>> On Mon, 2008-11-17 at 19:47, Leon Woestenberg wrote:
>>> /var/lib/ looks fine to me.
>>
>> Luckily fontconfig already has a configure option for the cache dir. Only some
>> small EXTRA_OECONF fiddeling was needed.
>
> Does it create the dir at runtime, or do we have to package it?

I tested it with an updated package and without the dir prepared. It got created
at runtime.

regards
Stefan Schmidt

Re: Moving fontconfig cache out of tmpfs

[Stefan Schmidt]

Hello.

On Tue, 2008-11-18 at 22:00, Stefan Schmidt wrote:
> 
> On Mon, 2008-11-17 at 19:47, Leon Woestenberg wrote:
> > 
> > /var/lib/ looks fine to me.
> 
> Luckily fontconfig already has a configure option for the cache dir. Only some
> small EXTRA_OECONF fiddeling was needed.
> 
> People are fine with this?

Pushed:

http://git.openembedded.net/?p=openembedded.git;a=commitdiff;h=94c3438f511b4faa735064be8c563da8631b34c7

regards
Stefan Schmidt