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Always collect after an import

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Imports generate a lot of garbage so cleaning it up immediately
reduces the likelihood longer lived data structures don't end up in
the middle of the heap.

Fixes #856
This commit is contained in:
Scott Shawcroft 2018-06-28 10:39:12 -07:00
parent 519287550c
commit 9de611c056
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1 changed files with 5 additions and 0 deletions
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5
py/builtinimport.c Normal file → Executable file
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@ -31,6 +31,7 @@
#include "py/compile.h"
#include "py/gc_long_lived.h"
#include "py/gc.h"
#include "py/objmodule.h"
#include "py/persistentcode.h"
#include "py/runtime.h"
@ -468,6 +469,10 @@ mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) {
// (the module that was just loaded) is not a package. This will be caught
// on the next iteration because the file will not exist.
}
// Loading a module thrashes the heap significantly so we explicitly clean up
// afterwards.
gc_collect();
}
if (outer_module_obj != MP_OBJ_NULL) {
qstr s = qstr_from_strn(mod_str + last, i - last);