faster gc

source/quickjs-internal.h

@@ -1082,6 +1082,11 @@ struct JSContext {
   uint8_t *heap_end;         /* end of block */
   size_t current_block_size; /* current block size (64KB initially) */
   size_t next_block_size;    /* doubles if <10% recovered after GC */
+  int gc_poor_streak;        /* consecutive poor-recovery GC cycles */
+
+  /* GC stats (lightweight, always on) */
+  uint64_t gc_count;         /* number of GC cycles */
+  uint64_t gc_bytes_copied;  /* total bytes copied across all GCs */
 
   /* Constant text pool — compilation constants */
   uint8_t *ct_base;              /* pool base */