document update

diff --git a/doc/wl-ja.texi b/doc/wl-ja.texi
index 66d180e..1844230 100644 (file)
--- a/doc/wl-ja.texi
+++ b/doc/wl-ja.texi
@@ -2702,11 +2702,18 @@ IMAP \e$B$N%a%C%;!<%8$@$1$,@hFI$_$5$l$^$9!#$3$NJQ?t$O\e(B
 
 @item wl-message-buffer-prefetch-depth
 @vindex wl-message-buffer-prefetch-depth
-\e$B=i4|@_Dj$O\e(B 5\e$B!#@hFI$_5!G=$9$k%a%C%;!<%8$N?t!#\e(B
+\e$B=i4|@_Dj$O\e(B 3\e$B!#@hFI$_5!G=$9$k%a%C%;!<%8$N?t!#\e(B
 
 @item wl-message-buffer-prefetch-idle-time
 @vindex wl-message-buffer-prefetch-idle-time
 \e$B=i4|@_Dj$O\e(B 0.2 (\e$BC10L\e(B:\e$BIC\e(B)\e$B!#@hFI$_5!G=$9$k;~4V4V3V!#\e(B
+
+@item wl-message-buffer-prefetch-threshold
+@vindex wl-message-buffer-prefetch-threshold
+\e$B=i4|@_Dj$O\e(B 30000 (bytes)\e$B!#\e(B@code{wl-message-buffer-prefetch-threshold} \e$B$r\e(B
+\e$B1[$($k%5%$%:$N%a%C%;!<%8$O!"@hFI$_$7$^$;$s!#\e(B
+@code{wl-message-buffer-prefetch-threshold}\e$B$r\e(B @code{nil} \e$B$K$9$k$H!"\e(B
+\e$B@hFI$_$9$k%a%C%;!<%8$N%5%$%:$N%A%'%C%/$r$7$^$;$s!#\e(B
 @end table
 
 

diff --git a/doc/wl.texi b/doc/wl.texi
index 3fba201..8c41b73 100644 (file)
--- a/doc/wl.texi
+++ b/doc/wl.texi
@@ -2708,11 +2708,18 @@ A list of regexp of folders to enable message prefetching.
 
 @item wl-message-buffer-prefetch-depth
 @vindex wl-message-buffer-prefetch-depth
-The initial setting is 5. The number of messages to prefetch.
+The initial setting is 3. The number of messages for automatical prefetch.
 
 @item wl-message-buffer-prefetch-idle-time
 @vindex wl-message-buffer-prefetch-idle-time
-The initial setting is 0.2 (in seconds). The period of prefetching.
+The initial setting is 0.2 (in seconds). The period of automatical prefetch.
+
+@item wl-message-buffer-prefetch-threshold
+@vindex wl-message-buffer-prefetch-threshold
+The initial setting is 30000 (bytes). If prefetching message has larger
+size than this value, Wanderlust does not prefetch automatically.
+If @code{wl-message-buffer-prefetch-threshold} is @code{nil}, 
+the message is not checked for the size.
 @end table