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YJIT: Add object shape count to stats (#6754)

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Takashi Kokubun 2022-11-17 12:59:59 -08:00 committed by GitHub
parent 4b29eb17f2
commit c80edc9f98
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GPG Key ID: 4AEE18F83AFDEB23
Notes: git 2022-11-17 21:00:22 +00:00 
Merged-By: k0kubun <takashikkbn@gmail.com>
2 changed files with 13 additions and 1 deletions
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8
yjit.c
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@ -1071,6 +1071,14 @@ rb_yjit_invalidate_all_method_lookup_assumptions(void)
// method caches, so we do nothing here for now. // method caches, so we do nothing here for now.
} }
// Number of object shapes, which might be useful for investigating YJIT exit reasons.
static VALUE
object_shape_count(rb_execution_context_t *ec, VALUE self)
{
// next_shape_id starts from 0, so it's the same as the count
return ULONG2NUM((unsigned long)GET_VM()->next_shape_id);
}
// Primitives used by yjit.rb // Primitives used by yjit.rb
VALUE rb_yjit_stats_enabled_p(rb_execution_context_t *ec, VALUE self); VALUE rb_yjit_stats_enabled_p(rb_execution_context_t *ec, VALUE self);
VALUE rb_yjit_trace_exit_locations_enabled_p(rb_execution_context_t *ec, VALUE self); VALUE rb_yjit_trace_exit_locations_enabled_p(rb_execution_context_t *ec, VALUE self);

6
yjit.rb
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@ -146,7 +146,10 @@ module RubyVM::YJIT
# Return nil when option is not passed or unavailable. # Return nil when option is not passed or unavailable.
def self.runtime_stats def self.runtime_stats
stats = Primitive.rb_yjit_get_stats stats = Primitive.rb_yjit_get_stats
return stats if stats.nil? || !Primitive.rb_yjit_stats_enabled_p return stats if stats.nil?
stats[:object_shape_count] = Primitive.object_shape_count
return stats unless Primitive.rb_yjit_stats_enabled_p
side_exits = total_exit_count(stats) side_exits = total_exit_count(stats)
total_exits = side_exits + stats[:leave_interp_return] total_exits = side_exits + stats[:leave_interp_return]
@ -270,6 +273,7 @@ module RubyVM::YJIT
$stderr.puts "freed_page_count: " + ("%10d" % stats[:freed_page_count]) $stderr.puts "freed_page_count: " + ("%10d" % stats[:freed_page_count])
$stderr.puts "code_gc_count: " + ("%10d" % stats[:code_gc_count]) $stderr.puts "code_gc_count: " + ("%10d" % stats[:code_gc_count])
$stderr.puts "num_gc_obj_refs: " + ("%10d" % stats[:num_gc_obj_refs]) $stderr.puts "num_gc_obj_refs: " + ("%10d" % stats[:num_gc_obj_refs])
$stderr.puts "object_shape_count: " + ("%10d" % stats[:object_shape_count])
$stderr.puts "side_exit_count: " + ("%10d" % stats[:side_exit_count]) $stderr.puts "side_exit_count: " + ("%10d" % stats[:side_exit_count])
$stderr.puts "total_exit_count: " + ("%10d" % stats[:total_exit_count]) $stderr.puts "total_exit_count: " + ("%10d" % stats[:total_exit_count])
$stderr.puts "total_insns_count: " + ("%10d" % stats[:total_insns_count]) if stats.key?(:total_insns_count) $stderr.puts "total_insns_count: " + ("%10d" % stats[:total_insns_count]) if stats.key?(:total_insns_count)