Understanding glibc malloc
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Understanding glibc malloc
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Re: Understanding glibc malloc
#2Doug Lea's dlmalloc implementation is the basis for GCC's ptmalloc, IIRC. His writeup on the topic is a wonderful read; and for the code itself, it is beautifully organised and well commented.
Re: Understanding glibc malloc
#3jemalloc is also pretty well-documented, though it's relatively big for a malloc implementation.
BSDcan paper: http://people.freebsd.org/~jasone/jemalloc/bsdcan2006/jemall...; Facebook Engineering post: https://www.facebook.com/notes/facebook-engineering/scalable....
The NetBSD version, though probably not the most up to date, is the easiest to understand, being in a single file: http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/jema....
Re: Understanding glibc malloc
#4Doug Lea's dlmalloc implementation is the basis for GCC's ptmalloc, IIRC. His writeup on the topic is a wonderful read; and for the code itself, it is beautifully organised and well commented. http://g.oswego.edu/dl/html/malloc.html
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Re: Understanding glibc malloc
#5jemalloc is also pretty well-documented, though it's relatively big for a malloc implementation. BSDcan paper: http://people.freebsd.org/~jasone/jemalloc/bsdcan2006/jemall... ; Facebook Engineering post: https://www.facebook.com/notes/facebook-engineering/scalable... . The NetBSD version, though probably not the most up to date, is the easiest to understand, being in a single file: http://cvsweb.netbsd.org/bsdweb.cgi…
The NetBSD is also a great starting point for people who want to port to weird architectures. It's simple and a little old fashioned, but it's in the sweet spot for most bootstrappable C compilers for memory-constrained devices. This or dmalloc are usually the easiest to get up and running on a device where you can't or don't want to trust the system libraries.