= Mall - access malloc tuning/reporting functions + glibc extras This library provides access to the SysV mallinfo(3) and mallopt(3) functions as well as (optionally) several glibc-specific malloc_*() functions. Mall.opt, Mall.trim and Mall.xml are the most interesting. Constants and functionality are defined at build time, so changing your malloc implementation may require rebuilding and reinstalling this library. == Quick Start > require 'mall' > irb(main):007:0> Mall::info => {:arena=>12099584, :ordblks=>139, :smblks=>30, :hblks=>3, :hblkhd=>1650688, :usmblks=>0, :fsmblks=>1536, :uordblks=>12068400, :fordblks=>31184, :keepcost=>3616} Where: struct mallinfo2 { size_t arena; /* Non-mmapped space allocated (bytes) */ size_t ordblks; /* Number of free chunks */ size_t smblks; /* Number of free fastbin blocks */ size_t hblks; /* Number of mmapped regions */ size_t hblkhd; /* Space allocated in mmapped regions (bytes) */ size_t usmblks; /* See below */ size_t fsmblks; /* Space in freed fastbin blocks (bytes) */ size_t uordblks; /* Total allocated space (bytes) */ size_t fordblks; /* Total free space (bytes) */ size_t keepcost; /* Top-most, releasable space (bytes) */ }; See `man 3 mallinfo2` (https://man7.org/linux/man-pages/man3/mallinfo.3.html). irb(main):008:0> Mall::dump_stats Arena 0: system bytes = 12099584 in use bytes = 12065808 Total (incl. mmap): system bytes = 13750272 in use bytes = 13716496 max mmap regions = 4 max mmap bytes = 1851392 => nil == Requirements * A malloc implementation supporting mallinfo(3) and/or mallopt(3), the ptmalloc-family of allocators used by glibc is recommended and the only tested implementation. == Build gem install rake-compiler rake build == Install git clone https://github.com/sitano/mall.git && cd mall && git co ivan gem build mall.gemspec gem install mall-1.0.2.gem or add gem 'mall', git: 'https://github.com/sitano/mall.git', branch: 'ivan' and then: $ bundle install == SOURCE: The original source code is available via git: git://yhbt.net/mall.git http://yhbt.net/mall.git cgit repository viewer: * http://yhbt.net/mall.git (cgit) == Contact All feedback (bug reports, user/development dicussion, patches, pull requests) go to the mailing list: {mall@librelist.org}[mail@librelist.org]
Project
mall
This library provides access to the SysV mallinfo(3) and mallopt(3)
functions as well as (optionally) several glibc-specific malloc_*()
functions. Mall.opt, Mall.trim and Mall.xml are the most interesting.
1.0.3 fixes minor issues to be compatible with gem install and rake.
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