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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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128
src/alloc/GC.cpp
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@ -12,91 +12,6 @@
namespace xo {
namespace gc {
void
PerGenerationStatistics::include_gc(std::size_t alloc_z,
std::size_t before_z,
std::size_t after_z,
std::size_t promote_z)
{
this->update_snapshot(after_z);
new_alloc_z_ += alloc_z;
scanned_z_ += before_z;
survive_z_ += after_z;
promote_z_ += promote_z;
}
void
PerGenerationStatistics::update_snapshot(std::size_t after_z)
{
used_z_ = after_z;
}
void
PerGenerationStatistics::display(std::ostream & os) const
{
os << "<PerGenerationStatistics"
<< xtag("used", used_z_)
<< xtag("n_gc", n_gc_)
<< xtag("new_alloc_z", new_alloc_z_)
<< xtag("scanned_z", scanned_z_)
<< xtag("survive_z", survive_z_)
<< xtag("promote_z", promote_z_)
<< ">";
}
void
GcStatistics::include_gc(generation upto,
std::size_t alloc_z,
std::size_t before_z,
std::size_t after_z,
std::size_t promote_z)
{
gen_v_[static_cast<std::size_t>(upto)].include_gc(alloc_z, before_z, after_z, promote_z);
}
void
GcStatistics::update_snapshot(generation upto,
std::size_t after_z)
{
gen_v_[static_cast<std::size_t>(upto)].update_snapshot(after_z);
}
void
GcStatistics::display(std::ostream & os) const
{
os << "<GcStatistics"
<< xtag("gen_v", gen_v_)
<< xtag("total_allocated", total_allocated_)
<< xtag("total_promoted_sab", total_promoted_sab_)
// total_promoted
// n_mtuation
// n_logged_mutation
// n_xgen_mutation
// n_xckp_mutation
// << xtag("per_type_stats", per_type_stats_)
<< ">";
}
void
GcStatisticsExt::display(std::ostream & os) const
{
os << "<GcStatisticsExt"
<< xtag("gen_v", gen_v_)
<< xtag("total_allocated", total_allocated_)
<< xtag("total_promoted_sab", total_promoted_)
<< xtag("nursery_z", nursery_z_)
<< xtag("nursery_before_ckp_z", nursery_before_checkpoint_z_)
<< xtag("nursery_after_ckp_z", nursery_after_checkpoint_z_)
<< xtag("tenured_z", tenured_z_)
<< xtag("n_mutation", n_mutation_)
<< xtag("n_logged_mutation", n_logged_mutation_)
<< xtag("n_xgen_mutation", n_xgen_mutation_)
<< xtag("n_xkcp_mutation", n_xckp_mutation_)
// << xtag("per_type_stats", per_type_stats_)
<< ">";
}
bool
MutationLogEntry::is_child_forwarded() const
{
@ -542,6 +457,22 @@ namespace xo {
} /*swap_spaces*/
void
GC::capture_object_statistics(generation upto, capture_phase phase)
{
/* scan nursery */
this->nursery_[role2int(role::to_space)]->capture_object_statistics
(phase,
&object_statistics_sab_[gen2int(generation::nursery)]);
if (upto == generation::tenured) {
/* scan tenured */
this->tenured_[role2int(role::to_space)]->capture_object_statistics
(phase,
&object_statistics_sab_[gen2int(generation::tenured)]);
}
}
void
GC::copy_object(Object ** pp_object, generation upto, ObjectStatistics * object_stats)
{
@ -566,7 +497,7 @@ namespace xo {
GC::copy_globals(generation upto)
{
for (Object ** pp_root : gc_root_v_) {
this->copy_object(pp_root, upto, &gc_statistics_.per_type_stats_);
this->copy_object(pp_root, upto, &object_statistics_sae_[gen2int(upto)]);
}
}
@ -802,7 +733,7 @@ namespace xo {
if (upto == generation::tenured) {
log && log("TODO: forward mutation log for full GC");
} else {
this->incremental_gc_forward_mlog(&gc_statistics_.per_type_stats_);
this->incremental_gc_forward_mlog(&object_statistics_sae_[gen2int(generation::nursery)]);
}
}
@ -858,7 +789,7 @@ namespace xo {
void
GC::execute_gc(generation upto)
{
scope log(XO_DEBUG(config_.debug_flag_));
scope log(XO_DEBUG(config_.stats_flag_));
bool full_move = (upto == generation::tenured);
@ -876,7 +807,11 @@ namespace xo {
log && log(xtag("new_alloc", new_alloc));
log && log("step 1: swap to/from roles");
log && log("step 0: (optional) scan for object statistics");
this->capture_object_statistics(upto, capture_phase::sab);
log && log("step 1 : swap to/from roles");
this->swap_spaces(upto);
@ -886,18 +821,25 @@ namespace xo {
log && log("step 2b: TODO: copy pinned");
log && log("step 3: forward mutation log");
log && log("step 3 : forward mutation log");
this->forward_mutation_log(upto);
log && log("step 4: TODO: notify destructor log");
log && log("step 4 : TODO: notify destructor log");
log && log("step 5: TODO: keep reachable weak pointers");
log && log("step 5 : TODO: keep reachable weak pointers");
log && log("step 6: cleanup");
log && log("step 6 : cleanup");
this->cleanup_phase(upto);
this->capture_object_statistics(upto, capture_phase::sae);
log && log("object statistics [nursery]:");
log && log(refrtag("stats", object_statistics_sab_[gen2int(generation::nursery)]));
log && log("object statistics [tenured]:");
log && log(refrtag("stats", object_statistics_sab_[gen2int(generation::tenured)]));
this->runstate_ = GCRunstate();
log && log("statistics:");