diff options
Diffstat (limited to 'py/mpconfig.h')
| -rw-r--r-- | py/mpconfig.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/py/mpconfig.h b/py/mpconfig.h index 491a53746..23591e0da 100644 --- a/py/mpconfig.h +++ b/py/mpconfig.h @@ -107,6 +107,15 @@ #define MICROPY_ALLOC_GC_STACK_SIZE (64) #endif +// Be conservative and always clear to zero newly (re)allocated memory in the GC. +// This helps eliminate stray pointers that hold on to memory that's no longer +// used. It decreases performance due to unnecessary memory clearing. +// TODO Do analysis to understand why some memory is not properly cleared and +// find a more efficient way to clear it. +#ifndef MICROPY_GC_CONSERVATIVE_CLEAR +#define MICROPY_GC_CONSERVATIVE_CLEAR (1) +#endif + // Support automatic GC when reaching allocation threshold, // configurable by gc.threshold(). #ifndef MICROPY_GC_ALLOC_THRESHOLD |