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ircd::allocator: Add mallinfo to string support w/ console command.

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This commit is contained in:
Jason Volk 2018-06-09 14:28:10 -07:00
parent feb1aa5d2f
commit acddfa77f8
3 changed files with 40 additions and 0 deletions
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1
include/ircd/allocator.h
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@ -26,6 +26,7 @@ namespace ircd::allocator
template<class T> struct node; template<class T> struct node;
bool trim(const size_t &pad = 0); // malloc_trim(3) bool trim(const size_t &pad = 0); // malloc_trim(3)
string_view info(const mutable_buffer &);
}; };
/// Profiling counters. /// Profiling counters.

34
ircd/allocator.cc
View file

@ -18,6 +18,40 @@
// //
// #define RB_PROF_ALLOC // #define RB_PROF_ALLOC
#if defined(__GNU_LIBRARY__) && defined(HAVE_MALLOC_H)
ircd::string_view
ircd::allocator::info(const mutable_buffer &buf)
{
std::stringstream out;
pubsetbuf(out, buf);
const auto ma
{
::mallinfo()
};
out << "arena: " << ma.arena << std::endl
<< "ordblks: " << ma.ordblks << std::endl
<< "smblks: " << ma.smblks << std::endl
<< "hblks: " << ma.hblks << std::endl
<< "hblkhd: " << ma.hblkhd << std::endl
<< "usmblks: " << ma.usmblks << std::endl
<< "fsmblks: " << ma.fsmblks << std::endl
<< "uordblks: " << ma.uordblks << std::endl
<< "fordblks: " << ma.fordblks << std::endl
<< "keepcost: " << ma.keepcost << std::endl
;
return view(out, buf);
}
#else
ircd::string_view
ircd::allocator::info(const mutable_buffer &buf)
{
return {};
}
#endif
#if defined(__GNU_LIBRARY__) && defined(HAVE_MALLOC_H) #if defined(__GNU_LIBRARY__) && defined(HAVE_MALLOC_H)
bool bool
ircd::allocator::trim(const size_t &pad) ircd::allocator::trim(const size_t &pad)

5
modules/console.cc
View file

@ -535,6 +535,11 @@ console_cmd__mem(opt &out, const string_view &line)
<< "freed count ____ " << this_thread.free_count << std::endl << "freed count ____ " << this_thread.free_count << std::endl
<< "alloc bytes ____ " << this_thread.alloc_bytes << std::endl << "alloc bytes ____ " << this_thread.alloc_bytes << std::endl
<< "freed bytes ____ " << this_thread.free_bytes << std::endl << "freed bytes ____ " << this_thread.free_bytes << std::endl
<< std::endl;
thread_local char buf[1024];
out << "malloc() information:" << std::endl
<< allocator::info(buf) << std::endl
; ;
return true; return true;