genfio: Adding iodepth support

It's useful to be able to specify the iodepth while running fio with
libaio.

By default, we keep iodepth=1 to keep the same as fio's default.

diff --git a/tools/genfio b/tools/genfio
index 123f6e42a6025fbff8f84483b0c5cb3a34524de5..4c1e710d2b2784d79bae4737d95d758920113a8d 100755 (executable)
--- a/tools/genfio
+++ b/tools/genfio
@@ -32,6 +32,7 @@ SHORT_HOSTNAME=
 CACHED_IO="FALSE"
 PREFIX=""
 PREFIX_FILENAME=""
 CACHED_IO="FALSE"
 PREFIX=""
 PREFIX_FILENAME=""

+IODEPTH=1

 
 show_help() {
        PROG=$(basename $0)
 
 show_help() {
        PROG=$(basename $0)


@@ -48,6 +49,8 @@ show_help() {
 -p                             : Run parallel test
                                        one test after anoter but all disks at the same time
                                        Enabled by default
 -p                             : Run parallel test
                                        one test after anoter but all disks at the same time
                                        Enabled by default

+-D iodepth                     : Run with the specified iodepth
+                                       Default is 32

 -d disk1[,disk2,disk3,..]      : Run the tests on the selected disks
                                        Separated each disk with a comma
                                        Disk name shall be "sdxx", /dev/ shall NOT be used here
 -d disk1[,disk2,disk3,..]      : Run the tests on the selected disks
                                        Separated each disk with a comma
                                        Disk name shall be "sdxx", /dev/ shall NOT be used here


@@ -90,6 +93,7 @@ gen_template() {
 cat >$TEMPLATE << EOF
 [global]
 ioengine=libaio
 cat >$TEMPLATE << EOF
 [global]
 ioengine=libaio

+iodepth=$IODEPTH

 invalidate=1
 ramp_time=5
 EOF
 invalidate=1
 ramp_time=5
 EOF


@@ -180,7 +184,7 @@ esac
 }
 
 parse_cmdline() {
 }
 
 parse_cmdline() {

-while getopts "hacpsd:b:r:m:x:" opt; do
+while getopts "hacpsd:b:r:m:x:D:" opt; do

   case $opt in
     h)
        show_help
   case $opt in
     h)
        show_help


@@ -224,6 +228,9 @@ while getopts "hacpsd:b:r:m:x:" opt; do
     d)
        DISKS=$OPTARG
       ;;
     d)
        DISKS=$OPTARG
       ;;

+    D)
+       IODEPTH=$OPTARG
+      ;;

     a)
        SEQ=2
       ;;
     a)
        SEQ=2
       ;;