From 074355a0d96d204d92307a4066c231cb89b2d8bf Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg42.2a@gmail.com>
Date: Sun, 10 Nov 2013 19:22:13 +0100
Subject: [db] call fontloader.close() for some minor gain
---
luaotfload-database.lua | 39 ++++++++++++++++++++++++++++++++++-----
1 file changed, 34 insertions(+), 5 deletions(-)
diff --git a/luaotfload-database.lua b/luaotfload-database.lua
index 5198b16..0b9f1f8 100644
--- a/luaotfload-database.lua
+++ b/luaotfload-database.lua
@@ -6,10 +6,35 @@ if not modules then modules = { } end modules ['luaotfload-database'] = {
license = "GNU GPL v2"
}
---- TODO: if the specification is an absolute filename with a font not in the
---- database, add the font to the database and load it. There is a small
---- difficulty with the filenames of the TEXMF tree that are referenced as
---- relative paths...
+--[[doc--
+
+ Some statistics:
+
+ a) TL 2012, mkluatexfontdb --force
+ b) v2.4, luaotfload-tool --update --force
+ c) v2.4, luaotfload-tool --update --force --formats=+afm,pfa,pfb
+ d) Context, mtxrun --script fonts --reload --force
+
+ (Keep in mind that Context does index fewer fonts since it
+ considers only the contents of the minimals tree, not the
+ tex live one!)
+
+ time (m:s) peak VmSize (B)
+ a 1:19 386 018
+ b 0:37 715 797
+ c 2:27 1 017 674
+ d 0:44 1 082 313
+
+ Most of the increase in memory consumption from version 1.x to 2.2+
+ can be attributed to the move from single-pass to a multi-pass
+ approach to building the index: Information is first gathered from
+ all reachable fonts and only afterwards processed, classified and
+ discarded. Also, there is a good deal of additional stuff kept in
+ the database now: two extra tables for file names and font families
+ have been added, making font lookups more efficient while improving
+ maintainability of the code.
+
+--doc]]--
local lpeg = require "lpeg"
@@ -1481,7 +1506,7 @@ ot_fullinfo = function (filename,
english_names,
info)
- return {
+ local res = {
file = { base = basename,
full = filename,
subfont = subfont,
@@ -1491,6 +1516,10 @@ ot_fullinfo = function (filename,
style = style,
version = metadata.version,
}
+ --- Closing the file manually is a tad faster and more memory
+ --- efficient than having it closed by the gc
+ fontloaderclose (metadata)
+ return res
end
--[[doc--
--
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