use fnv hashmap. Since the hashmap is written to only from the disk, it is...

use fnv hashmap. Since the hashmap is written to only from the disk, it is safe to use. we get more speed

Cargo.lock

@@ -776,6 +776,7 @@ name = "org_flux"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "fnv",
  "image",
  "orgize",
  "syntect",

Cargo.toml

@@ -14,3 +14,4 @@ tokio = { version = "1.0", features = ["full"] }
 warp = "0.3"
 time = { version = "0.3", features = ["macros", "formatting"] }
 image = "0.24.5"
+fnv = "1.0"

src/blog.rs

 use anyhow::{bail, Error};
-use std::collections::HashMap;
+use fnv::FnvHashMap;
 use warp::hyper::StatusCode;
 
 use crate::{
@@ -56,7 +56,7 @@ impl Blog {
 }
 
 pub struct RenderedBlog {
-    pages: HashMap<UrlPath, Response>,
+    pages: FnvHashMap<UrlPath, Response>,
     not_found: Response,
 }
 
@@ -76,7 +76,7 @@ impl TryFrom<Blog> for RenderedBlog {
         b.pages.sort();
         b.posts.sort();
 
-        let mut pages = HashMap::new();
+        let mut pages = FnvHashMap::default();
 
         for p in &b.posts {
             let body = dress_page(&p.title, &p.html()?, &b.pages, &b.favicon);
@@ -130,7 +130,7 @@ impl TryFrom<Blog> for RenderedBlog {
 }
 
 fn insert_path(
-    pages: &mut HashMap<UrlPath, Response>,
+    pages: &mut FnvHashMap<UrlPath, Response>,
     path: &str,
     value: Response,
 ) -> anyhow::Result<()> {