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author | Paul Eggleton <paul.eggleton@microsoft.com> | 2022-04-22 12:45:45 +0100 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2022-04-25 15:14:09 +0100 |
commit | d653a436654c28f2ec30dcaecad8ab099caf9c9c (patch) | |
tree | 00803e293b24428eef1813cc7452cf262997318b /documentation/ref-manual | |
parent | e2cb52612e348e4ec464a776ae3fb870a0c7f7d9 (diff) | |
download | poky-d653a436654c28f2ec30dcaecad8ab099caf9c9c.tar.gz |
ref-manual: add ZSTD_THREADS
ZSTD_THREADS is new for kirkstone.
(From yocto-docs rev: b970936b89bebb184c82be3a9514a9eba7c04f9b)
Signed-off-by: Paul Eggleton <paul.eggleton@microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'documentation/ref-manual')
-rw-r--r-- | documentation/ref-manual/variables.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst index 34da5bd30c..1bfa667786 100644 --- a/documentation/ref-manual/variables.rst +++ b/documentation/ref-manual/variables.rst | |||
@@ -8779,3 +8779,16 @@ system and gives an overview of their function and contents. | |||
8779 | memory and become problematic with parallelism elsewhere in the build. | 8779 | memory and become problematic with parallelism elsewhere in the build. |
8780 | "50%" has been found to be a good value. | 8780 | "50%" has been found to be a good value. |
8781 | 8781 | ||
8782 | :term:`ZSTD_THREADS` | ||
8783 | Specifies the number of parallel threads that should be used when | ||
8784 | using ZStandard compression. | ||
8785 | |||
8786 | By default this scales with core count, but is never set less than 2 | ||
8787 | to ensure that multi-threaded mode is always used so that the output | ||
8788 | file contents are deterministic. Builds will work with a value of 1 | ||
8789 | but the output will differ compared to the output from the compression | ||
8790 | generated when more than one thread is used. | ||
8791 | |||
8792 | On systems where many tasks run in parallel, setting a limit to this | ||
8793 | can be helpful in controlling system resource usage. | ||
8794 | |||