[Python-Dev] Using PEP384 Stable ABI for the lzma extension module (original) (raw)

Amaury Forgeot d'Arc amauryfa at gmail.com
Thu Oct 6 10:16:19 CEST 2011


Le 6 octobre 2011 10:09, Charles-François Natali <neologix at free.fr> a écrit :

But under certain circumstances (if a large block is requested), the allocator uses mmap(), no? That's right, if the block requested is bigger than mmapthreshold (256K by default with glibc, forgetting the sliding window algorithm): I'm not sure of what percentage of strings/buffers are concerned in a "typical" program.

Most usages of _PyBytes_Resize() are in compression libraries. 256K payloads are not rare in this area.

-- Amaury Forgeot d'Arc



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