Process.warmup: invoke `malloc_trim` if available

Similar to releasing free GC pages, releasing free malloc pages
reduce the amount of page faults post fork.

1 files changed, 1 insertions, 0 deletions

diff --git a/process.c b/process.c
index d7e04830ee..690872ad36 100644
--- a/process.c
+++ b/process.c
@@ -8789,6 +8789,7 @@ static VALUE rb_mProcID_Syscall;
  *  * Precomputes the coderange of all strings.
  *  * Frees all empty heap pages and increments the allocatable pages counter
  *    by the number of pages freed.
+ *  * Invoke +malloc_trim+ if available to free empty malloc pages.
  */
 
 static VALUE