From: Jim Meyering <jim@meyering.net>
Date: Sun, 15 Apr 2001 05:58:33 +0000 (+0000)
Subject: (default_sort_size): Leave a 1/16 margin for RSS.
X-Git-Tag: FILEUTILS-4_0_44~19
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=4b9aaf267e97db735549db1bafe130bde879586a;p=thirdparty%2Fcoreutils.git

(default_sort_size): Leave a 1/16 margin for RSS.
---

diff --git a/src/sort.c b/src/sort.c
index 7f78765379..ecfa8287f0 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -672,8 +672,10 @@ default_sort_size (void)
   size /= 2;
 
 #ifdef RLIMIT_RSS
-  if (getrlimit (RLIMIT_RSS, &rlimit) == 0 && rlimit.rlim_cur < size)
-    size = rlimit.rlim_cur;
+  /* Leave a 1/16 margin for RSS to leave room for code, stack, etc.
+     Exceeding RSS is not fatal, but can be quite slow.  */
+  if (getrlimit (RLIMIT_RSS, &rlimit) == 0 && rlimit.rlim_cur / 16 * 15 < size)
+    size = rlimit.rlim_cur / 16 * 15;
 #endif
 
   /* Use no less than the minimum.  */