ccache help?

[sk8harddiefast]

I read on Google about a package named ccache which is on ports and make compile faster. Use some kind of space (on disk I guess) and save compilation to do it faster next time? What exactly is that and how to setup it? Searching on forum, I read about some problems with ccache on and compiling / rebuilding world errors. Is dangerous? Try it?

 

[graudeejs]

http://forums.freebsd.org/showthread.php?t=174
It only helps if you compile same/similar source more than 1 time.
For the first time, it will probably slow things down....

Also if you're porter or developer of some c/c++ apps, ccache is very useful

 

[vermaden]

Also if you're porter or developer of some c/c++ apps, ccache is very useful

... or use Ports a lot and source upgrades (kernel/world rebuild).

 

[sk8harddiefast]

From: http://forums.freebsd.org/showthread.php?t=174

# set ccache temp size to 512MB (default 1GB)

What exactly is that? How I should give?

 

[vermaden]

Size of ccache's cache on disk, You can give as much as You want.

 

[sk8harddiefast]

add the following to /.cshrc:
Code:

# set ccache varibles
setenv PATH /usr/local/libexec/ccache:$PATH
setenv CCACHE_PATH /usr/bin:/usr/local/bin
setenv CCACHE_DIR /var/tmp/ccache
setenv CCACHE_LOGFILE /var/log/ccache.log

# set ccache temp size to 512MB (default 1GB)
if ( -x /usr/local/bin/ccache ) then
  /usr/local/bin/ccache -M 512m > /dev/null
endif

If I use bash?

 

[vermaden]

# set ccache temp size to 4G (default 1GB)
if [ -x /usr/local/bin/ccache ]; then
  export PATH=/usr/local/libexec/ccache:$PATH
  export CCACHE_PATH=/usr/bin:/usr/local/bin
  export CCACHE_DIR=/var/ccache
  /usr/local/bin/ccache -M 4g > /dev/null
fi

 

[sk8harddiefast]

My /etc/make.conf

.if !defined(NO_CCACHE)
  CC=/usr/local/libexec/ccache/world-cc
  CXX=/usr/local/libexec/ccache/world-c++
.endif

.if ${.CURDIR:M*/ports/devel/ccache}
  NO_CCACHE=yes
.endif

My .bashrc

# set ccache temp size to 4G (default 1GB)
if [ -x /usr/local/bin/ccache ]; then
  export PATH=/usr/local/libexec/ccache:$PATH
  export CCACHE_PATH=/usr/bin:/usr/local/bin
  export CCACHE_DIR=/var/ccache
  /usr/local/bin/ccache -M 5g > /dev/null
fi

but ccache -s

cache                 directory                     /var/ccache
cache hit (direct)                     0
cache hit (preprocessed)               0
cache miss                             0
files in cache                         0
cache size                             0 Kbytes
max cache size                       1.0 Gbytes

 

[vermaden]

# source ~/.bashrc
# ccache -s

 

[sk8harddiefast]

sudo source ~/.bashrc
Password:
sudo: source: command not found

:OOO

 

[vermaden]

Learn how to use sudo(8) properly:

/usr/local/etc/sudoers

Defaults        env_keep += "PKG_PATH PKG_DBDIR PKG_TMPDIR TMPDIR PACKAGEROOT PACKAGESITE PKGDIR FTP_PASSIVE_MODE"
Defaults        env_keep += "PATH CCACHE_PATH CCACHE_DIR"

... or use it as root:

# su -
# source /home/YOU/.bashrc
# ccache -s

 

[fronclynne]

I thought source was a csh builtin

# source ~/.bashrc
# ccache -s

Oughtn't that be # . ~/.bashrc or is my memory of Bourne syntax obsolete?