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xo-allod: + per-type stats + pretty printing

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This commit is contained in:
Roland Conybeare 2025-08-06 22:34:20 -05:00
commit 593dc064f9
16 changed files with 379 additions and 191 deletions
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39
src/alloc/ArenaAlloc.cpp
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@ -4,6 +4,8 @@
*/
#include "ArenaAlloc.hpp"
#include "Object.hpp"
#include "ObjectStatistics.hpp"
#include "xo/indentlog/scope.hpp"
#include "xo/indentlog/print/tag.hpp"
#include <cassert>
@ -64,6 +66,43 @@ namespace xo {
}
}
void
ArenaAlloc::capture_object_statistics(capture_phase phase,
ObjectStatistics * p_dest) const
{
using xo::reflect::TaggedPtr;
std::byte * p = lo_;
while (p < free_ptr_) {
Object * obj = reinterpret_cast<Object *>(p);
TaggedPtr tp = obj->self_tp();
std::size_t z = obj->_shallow_size();
std::uint32_t id = tp.td()->id().id();
if (p_dest->per_type_stats_v_.size() < id + 1)
p_dest->per_type_stats_v_.resize(id + 1);
PerObjectTypeStatistics & dest = p_dest->per_type_stats_v_.at(id);
dest.td_ = tp.td();
switch (phase) {
case capture_phase::sab:
++dest.scanned_n_;
dest.scanned_z_ += z;
break;
case capture_phase::sae:
++dest.survive_n_;
dest.survive_z_ += z;
break;
}
p += z;
}
assert(p == free_ptr_);
}
std::size_t
ArenaAlloc::size() const {
return limit_ - lo_;