From faaa20b9ae3000390bbd2db47917599fdcfbdf82 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 9 Feb 2016 17:40:10 +0200 Subject: [PATCH] Add README --- README.md | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 README.md diff --git a/README.md b/README.md new file mode 100644 index 0000000..399113f --- /dev/null +++ b/README.md @@ -0,0 +1,22 @@ +# fsqual - file system qualification tool for asynchonus I/O + +## About + +Linux AIO is notoriously bad; but it is hard to understand what the weaknesses of a filesystem implementation in a particular kernel version are. The `fsqual` tool provides a way to qualify a filesystem's aio implementation. + +See this [blog post](http://www.scylladb.com/2016/02/09/qualifying-filesystems/) for more information. + +Currently tested attributes are: + * Asycnhronous appending write + +## Building + +Install the following packages: + * `libaio-devel` (`libaio-dev1 on Debian and derivatives) + * `gcc-c++` (`g++` on Debian and derivatives) + * `make` + +## Running + +Change to a directory under the mountpoint to be tested, and run `fsqual`. + -- 2.49.0