diff --git a/en_US.ISO8859-1/books/handbook/config/chapter.sgml b/en_US.ISO8859-1/books/handbook/config/chapter.sgml index 2f56093f1d..70b899112a 100644 --- a/en_US.ISO8859-1/books/handbook/config/chapter.sgml +++ b/en_US.ISO8859-1/books/handbook/config/chapter.sgml @@ -1574,18 +1574,18 @@ device_probe_and_attach: cbb0 attach returned 12 system. Most directories are small, using just a single fragment (typically 1 K) in the file system and less (typically 512 bytes) in the buffer cache. - However, when operating in the default mode the buffer + With this variable turned off (to 0), the buffer cache will only cache a fixed number of directories even if - you have a huge amount of memory. Turning on this sysctl + you have a huge amount of memory. When turned on (to 1), this sysctl allows the buffer cache to use the VM Page Cache to cache the directories, making all the memory available for caching directories. However, the minimum in-core memory used to cache a directory is the physical page size (typically 4 K) rather than 512  - bytes. We recommend turning this option on if you are running + bytes. We recommend keeping this option on if you are running any services which manipulate large numbers of files. Such services can include web caches, large mail systems, and news - systems. Turning on this option will generally not reduce + systems. Keeping this option on will generally not reduce performance even with the wasted memory but you should experiment to find out.