| Kernel v2.4.19 /Documentation/sysctl/vm.txt |
|---|
 2.4.19
 Documentation
 sysctl
 vm.txt
diff -urN linux-2.4.18/Documentation/sysctl/vm.txt linux-2.4.19/Documentation/sysctl/vm.txt
--- linux-2.4.18/Documentation/sysctl/vm.txt Mon Sep 10 14:36:25 2001
+++ linux-2.4.19/Documentation/sysctl/vm.txt Fri Aug 2 17:39:42 2002
@@ -21,6 +21,7 @@
- buffermem
- freepages
- kswapd
+- max_map_count
- overcommit_memory
- page-cluster
- pagecache
@@ -170,6 +171,19 @@
==============================================================
+max_map_count:
+
+This file contains the maximum number of memory map areas a
+process may have. Memory map areas are used as a side-effect
+of calling malloc, directly by mmap and mprotect, and also
+when loading shared libraries.
+
+While most applications need less than a thousand maps,
+certain programs, particularly malloc debuggers, may consume
+lots of them, e.g. up to one or two maps per allocation.
+
+==============================================================
+
page-cluster:
The Linux VM subsystem avoids excessive disk seeks by reading
|