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[Doc] add ccache guide in doc #5012

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merged 3 commits into from
May 23, 2024
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[Doc] add ccache guide in doc #5012

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add ccache guide in doc
youkaichao May 23, 2024
a8ff6f0
Update docs/source/getting_started/installation.rst
youkaichao May 23, 2024
38bc622
update doc
youkaichao May 23, 2024
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4 changes: 4 additions & 0 deletions docs/source/getting_started/installation.rst
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Expand Up @@ -56,6 +56,10 @@ You can also build and install vLLM from source:
$ # export VLLM_INSTALL_PUNICA_KERNELS=1 # optionally build for multi-LoRA capability
$ pip install -e . # This may take 5-10 minutes.
.. tip::

Building from source requires quite a lot compilation. If you are building from source for multiple times, it is beneficial to cache the compilation results. For example, you can install `ccache <https://github.com/ccache/ccache>`_ via either `conda install ccache` or `apt install ccache` . As long as `which ccache` command can find the `ccache` binary, it will be used automatically by the build system. After the first build, the subsequent builds will be much faster.

.. tip::
To avoid your system being overloaded, you can limit the number of compilation jobs
to be run simultaneously, via the environment variable `MAX_JOBS`. For example:
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