Attachment 45401 Details for Bug 70005 – file.diff

[patch] file.diff

file.diff (text/plain), 1.46 KB, created by Marju Ignatjeva on 2004-08-04 18:20:09 UTC

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Creator: Marju Ignatjeva

Created: 2004-08-04 18:20:09 UTC

Size: 1.46 KB

patch

obsolete

>--- r1.161      Mon Jul 26 18:06:41 2004
>+++ conf.fix    Mon Jul 26 18:12:22 2004
>@@ -1566,18 +1566,18 @@
>          system.  Most directories are small, using just a single
>          fragment (typically 1&nbsp;K) in the file system and less
>          (typically 512&nbsp;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&nbsp;K) rather than 512&nbsp;
>-         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 on this option will generally not reduce
>          performance even with the wasted memory but you should
>          experiment to find out.</para>
>       </sect3>

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