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Cache: Rewrite based on lua-lru

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Ought to be faster than our naive array-based approach.
Especially for the glyph cache, which has a solid amount of elements,
and is mostly cache hits.
(There are few things worse for performance in Lua than
table.remove @ !tail and table.insert @ !tail, which this was full of :/).

DocCache: New module that's now an actual Cache instance instead of a
weird hack. Replaces "Cache" (the instance) as used across Document &
co.
Only Cache instance with on-disk persistence.

ImageCache: Update to new Cache.

GlyphCache: Update to new Cache.
Also, actually free glyph bbs on eviction.
This commit is contained in:
NiLuJe
2021-05-04 23:13:24 +02:00
parent ce624be8b8
commit 21b067792d
15 changed files with 243 additions and 229 deletions
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18
spec/unit/cache_spec.lua
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@@ -1,11 +1,11 @@
describe("Cache module", function()
local DocumentRegistry, Cache
local DocumentRegistry, DocCache
local doc
local max_page = 1
setup(function()
require("commonrequire")
DocumentRegistry = require("document/documentregistry")
Cache = require("cache")
DocCache = require("document/doccache")
local sample_pdf = "spec/front/unit/data/sample.pdf"
doc = DocumentRegistry:openDocument(sample_pdf)
@@ -15,22 +15,22 @@ describe("Cache module", function()
end)
it("should clear cache", function()
Cache:clear()
DocCache:clear()
end)
it("should serialize blitbuffer", function()
for pageno = 1, math.min(max_page, doc.info.number_of_pages) do
doc:renderPage(pageno, nil, 1, 0, 1.0, 0)
Cache:serialize()
DocCache:serialize()
end
Cache:clear()
DocCache:clear()
end)
it("should deserialize blitbuffer", function()
for pageno = 1, math.min(max_page, doc.info.number_of_pages) do
doc:hintPage(pageno, 1, 0, 1.0, 0)
end
Cache:clear()
DocCache:clear()
end)
it("should serialize koptcontext", function()
@@ -38,9 +38,9 @@ describe("Cache module", function()
for pageno = 1, math.min(max_page, doc.info.number_of_pages) do
doc:renderPage(pageno, nil, 1, 0, 1.0, 0)
doc:getPageDimensions(pageno)
Cache:serialize()
DocCache:serialize()
end
Cache:clear()
DocCache:clear()
doc.configurable.text_wrap = 0
end)
@@ -48,6 +48,6 @@ describe("Cache module", function()
for pageno = 1, math.min(max_page, doc.info.number_of_pages) do
doc:renderPage(pageno, nil, 1, 0, 1.0, 0)
end
Cache:clear()
DocCache:clear()
end)
end)