From 1d0a442405e8fc7a0742a8f8db2ea0f874f750a5 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 29 Nov 2015 19:57:48 +0100
Subject: OpenDir performance: Read DirIV once and reuse it for all names

Formerly, we called decryptPath for every name.
That resulted in a directory walk that reads in all diriv files
on the way.

Massive improvement for RM and LS (check performance.txt for details)

VERSION         UNTAR   RM   LS
v0.4               48    5    1.5
v0.5-rc1           56   19    7
v0.5-rc1-1         54    9    4.1   <---- THIS VERSION
---
 performance.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 performance.txt

(limited to 'performance.txt')

diff --git a/performance.txt b/performance.txt
new file mode 100644
index 0000000..55678c3
--- /dev/null
+++ b/performance.txt
@@ -0,0 +1,10 @@
+All test performed on tmpfs, /tmp/a mounted on /tmp/b.
+
+UNTAR: tar xfz ../linux-3.0.tar.gz
+LS: ls -lR > /dev/null
+RM: rm -rf linux-3.0
+
+VERSION         UNTAR    LS     RM
+v0.4               48     1.5    5
+v0.5-rc1           56     7     19
+v0.5-rc1-1         54     4.1    9
-- 
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