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| author | Julien Lepiller <julien@lepiller.eu> | 2021-03-18 23:41:40 +0100 |
|---|---|---|
| committer | Julien Lepiller <julien@lepiller.eu> | 2021-06-11 02:39:29 +0200 |
| commit | 99d450b085b7bf44d669093f6c9964391ce1b451 (patch) | |
| tree | ed805603a7a4b85bdcc4ddb9c7d5ceb4ac39500f /gnu/packages/python.scm | |
| parent | 20d52562e5c943b30e48e310b58b94054c3a54e5 (diff) | |
| download | guix-patches-99d450b085b7bf44d669093f6c9964391ce1b451.tar guix-patches-99d450b085b7bf44d669093f6c9964391ce1b451.tar.gz | |
gnu: python: Enable optimizations.
As a result, python execution time of scripts is decreased by 6 to 40%.
gnu/packages/python (python-2.7)[arguments]: Add configure and make flags to
optimize the resulting python.
Diffstat (limited to 'gnu/packages/python.scm')
| -rw-r--r-- | gnu/packages/python.scm | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm index 9e29733091..ca15147c56 100644 --- a/gnu/packages/python.scm +++ b/gnu/packages/python.scm @@ -184,7 +184,10 @@ "--with-system-expat" ;for XML support "--with-system-ffi" ;build ctypes "--with-ensurepip=install" ;install pip and setuptools + "--with-computed-gotos" ;main interpreter loop optimization + "--with-lto" ;increase size by 20MB, but 15% speedup "--enable-unicode=ucs4" + "--enable-optimizations" ;; Prevent the installed _sysconfigdata.py from retaining a reference ;; to coreutils. @@ -198,8 +201,13 @@ "ac_cv_file__dev_ptmx=no" "ac_cv_file__dev_ptc=no") '()) + ;; -fno-semantic-interposition reinstates some optimizations by gcc + ;; leading to around 15% speedup. This is the default starting from + ;; python 3.10. + "CFLAGS=-fno-semantic-interposition" (string-append "LDFLAGS=-Wl,-rpath=" - (assoc-ref %outputs "out") "/lib")) + (assoc-ref %outputs "out") "/lib" + " -fno-semantic-interposition")) ;; With no -j argument tests use all available cpus, so provide one. #:make-flags (list (string-append |