[master] 40e2168 gzip tmp space

[Per Andreas Buer]

commit 40e216857418a420e6b8f330d5268957473d6509
Author: Per Buer <perbu at varnish-software.com>
Date:   Wed Jan 26 12:46:33 2011 +0100

    gzip tmp space

diff --git a/doc/sphinx/reference/varnishd.rst b/doc/sphinx/reference/varnishd.rst
index fb8c61c..f2e0ef4 100644
--- a/doc/sphinx/reference/varnishd.rst
+++ b/doc/sphinx/reference/varnishd.rst
@@ -482,6 +482,26 @@ gzip_level
       Gzip compression level ranging from 1 (the fastest) to 9 (the
       smallest possible output). 0 indicates "debug mode".
 
+gzip_stack_buffer
+      Unit: kilobytes
+      Default: 2048
+
+      Size of stack buffer used for in transit gzip processing, like
+      on the fly decompression.
+
+gzip_tmp_space
+      Default: 0
+
+      Where temporary space for gzip/gunzip is allocated.
+        0 - malloc
+        1 - session workspace
+        2 - thread workspace
+      
+      If you have much gzip/gunzip activity, it may be an advantage to
+      use workspace for these allocations to reduce malloc activity.
+      Be aware that gzip needs 256+KB and gunzip" needs 32+KB of
+      workspace (64+KB if ESI processing).
+
 http_headers
       Units: header lines
       Default: 64