Merge pull request #1 from Dahca/master

README.md clarifications.

README.md

@@ -10,6 +10,16 @@ As a research prototype, Strata has several limitations, described in [Limitatio
 
 ### Building Strata ###
 Assume current directory is a project root directory.
+
+##### 0. Change memory configuration
+1. Open libfs/src/storage/storage.h
+2. Modify `dev_size` array values with each storage size (the same as in your grub conf, see the RUNNING STRATA section) in bytes.
+    - dev_size[0]: could be always 0 (not used)
+    - dev_size[1]: dax0.0 size
+    - dev_size[2]: ssd size : just put 0 for now
+    - dev_size[3]: HDD size : put 0 for now
+    - dev_size[4]: dax1.0 size
+
 ##### 1. Build kernel
 ~~~
 cd kernel/kbuild
@@ -28,7 +38,9 @@ make
 cd libfs/lib
 git clone https://github.com/pmem/nvml
 make
+
 tar xvjf jemalloc-4.5.0.tar.bz2
+cd jemalloc-4.5.0
 ./autogen
 ./configure
 make
@@ -42,7 +54,7 @@ make
 ~~~
 cd kernfs
 make
-cd test
+cd tests
 make
 ~~~
 ##### 6. Build libshim
@@ -66,7 +78,7 @@ This step requires rebooting your machine.
 
 ##### 2. Use DEV-DAX emulation
 ~~~
-cd util
+cd utils
 sudo ./use_dax.sh bind
 ~~~
 This instruction will change pmem emulation to use dev-dax mode.
@@ -86,7 +98,7 @@ TODO: Some instructions to setup storage size (by a script or manually)
 
 ##### 4. Setup UIO for SPDK
 ~~~
-cd util
+cd utils
 sudo ./uio_setup.sh linux config
 ~~~
 To rollback to previous setting,
@@ -129,7 +141,7 @@ sudo ./run.sh iotest sw 2G 4K 1 #sequential write, 2GB file with 4K IO and 1 thr
 in Makefile of libfs, search MLFS_FLAGS as keyword
 ~~~~
 MLFS_FLAGS = -DLIBFS -DMLFS_INFO
-#MLFS_FLAGS += -DCONCURRENT   
+#MLFS_FLAGS += -DCONCURRENT
 MLFS_FLAGS += -DINVALIDATION
 #MLFS_FLAGS += -DKLIB_HASH
 MLFS_FLAGS += -DUSE_SSD