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07cef612c3
This change adds a TLS freelist for small dynamic memory allocations.
Cosmopolitan's TIB is now 512 bytes in size. Single-threaded malloc()
performance isn't impacted by this, until pthread_create() is called.
Single-threaded programs may also want to consider using:
#include "libc/mem/tinymalloc.inc"
Which will shave 30k off the executable size and sometimes go faster.
17 lines
447 B
Text
17 lines
447 B
Text
DESCRIPTION
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malloc-2.8.6
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written by Doug Lea
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LICENSE
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http://creativecommons.org/publicdomain/zero/1.0/
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LOCAL CHANGES
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- Use thread-local freelist from cosmo tib
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- Use faster two power roundup for memalign()
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- Poison maps to integrate with Address Sanitizer
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- Introduce __oom_hook() by using _mapanon() vs. mmap()
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- Wrap locks with __threaded check to improve perf lots
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- Use assembly init rather than ensure_initialization()
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