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logrusx
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Joined: 22 Feb 2018
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user
Apprentice
Joined: 08 Feb 2004
Posts: 223
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 Posted: Sun Feb 16, 2025 11:22 am Post subject: |
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| logrusx wrote: | | https://wiki.gentoo.org/wiki/Ccache |
| Code: | * Contents of dev-util/ccache-4.10.2-r1:
/usr
/usr/bin
/usr/bin/ccache
/usr/bin/ccache-config
/usr/share
/usr/share/doc
/usr/share/doc/ccache-4.10.2-r1
/usr/share/doc/ccache-4.10.2-r1/AUTHORS.adoc.lz
/usr/share/doc/ccache-4.10.2-r1/CONTRIBUTING.md.lz
/usr/share/doc/ccache-4.10.2-r1/MANUAL.adoc.lz
/usr/share/doc/ccache-4.10.2-r1/NEWS.adoc.lz
/usr/share/doc/ccache-4.10.2-r1/README.md.lz
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/ccache.1.lz
/usr/share/shadowman
/usr/share/shadowman/tools
/usr/share/shadowman/tools/ccache
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no portage-ccache |
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mi_unixbird
Tux's lil' helper
Joined: 24 Jul 2015
Posts: 141
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| Posted: Sun Feb 16, 2025 12:12 pm Post subject: |
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| user wrote: | | Which package provide "portage-ccache" ? |
Nothing, it's just a script I made that does nothing more than automatically setting the CCACHE_DIR environment variable.
The important part is this part of /etc/portage/bashrc:
| Code: | if [[ ${FEATURES} == *ccache* && ${EBUILD_PHASE_FUNC} == src_* ]]; then
export CCACHE_BASEDIR="${PORTAGE_TMPDIR}/portage"
if [[ ${CCACHE_DIR} == /var/cache/portage/ccache ]]; then
if [[ ${CATEGORY} == kde-frameworks ]]; then
export CCACHE_DIR=${CCACHE_DIR}/${CATEGORY}
else
export CCACHE_DIR=${CCACHE_DIR}/${CATEGORY}/${PN}
fi
mkdir -p "${CCACHE_DIR}" || die
fi
fi |
Which assigns each package it's own private cache in /var/cache/portage/ccache for better statistics and monitoring.
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execctl --path exec filectl --current-directory list |
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logrusx
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Joined: 22 Feb 2018
Posts: 2738
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| Posted: Sun Feb 16, 2025 4:41 pm Post subject: |
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| mi_unixbird wrote: |
As in: “prefix_command_cpp=/usr/local/libexec/ccache_pp_wrapper” with this simply executing “exec "$@" -P” and nothing more. It seems like this change makes a lot of packages which didn't work well with upgrades compile get a high hit ratio. |
Where do you put that?
Best Regards,
Georgi |
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mi_unixbird
Tux's lil' helper
Joined: 24 Jul 2015
Posts: 141
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| Posted: Sun Feb 16, 2025 6:48 pm Post subject: |
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| logrusx wrote: | | mi_unixbird wrote: |
As in: “prefix_command_cpp=/usr/local/libexec/ccache_pp_wrapper” with this simply executing “exec "$@" -P” and nothing more. It seems like this change makes a lot of packages which didn't work well with upgrades compile get a high hit ratio. |
Where do you put that?
Best Regards,
Georgi |
In the /etc/ccache.conf or local per-cache configuration.
https://ccache.dev/manual
The “prefix_command_cpp” option and the configuration style syntax is explained here.
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execctl --path exec filectl --current-directory list |
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logrusx
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Joined: 22 Feb 2018
Posts: 2738
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| Posted: Mon Feb 17, 2025 5:33 pm Post subject: |
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Thanks. I almost filled the cache, only a few thousand units remain until the compilation completes. We'll see what happens on the next release. I've never had good results with ccache, but I remain optimistic. No big hoes though.
EIDT: it finished. Cache size is 2.1 Gb. It even had 2 cache hits during the compilation. However I'm disappointed. Three years after they enabled Wayland support and Chromium still does not allow me to select more than 1080p YouTube video quality, while Firefox has been supporting it for quite a while now. I've abandoned Chromium for more than a year and I'm doing this out of curiosity only.
Best Regards,
Georgi |
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