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Add support of slow drive #8

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Add support of slow drive #8

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6e61fb2
Add support of slow drive
dboltovskyi Jul 19, 2021
765a952
Add possibility to set loop device parameters in script
dboltovskyi Jul 28, 2021
fbbb9c1
fixup
dboltovskyi Jul 28, 2021
9e6e599
fixup
dboltovskyi Jul 28, 2021
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35 changes: 35 additions & 0 deletions atf_parallels/loop.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,45 @@ _lockfile=.lock
_image_name=atf_worker
_container_name=$(basename $_tmpdirname)

_loop_device=""
_loop_device_file="loop_device_file_"$_container_name".img"

####################################################################
# The following code has to be run in several different processes
# i.e. `screen -d -m 'script_to_run.sh'`
####################################################################

function get_param_from_file {
for i in `sed 's/=/ /g' $1 | grep "^$2 " | awk '{print $2}'`; do echo $i | sed 's/"//g'; done
}

function create_loop_device {
echo "Create Loop Device"
dd if=/dev/zero of=$_loop_device_file bs=1024k count=10
mkfs -b 1024 $_loop_device_file
losetup -fP $_loop_device_file
_loop_device=$(losetup -l -n -j $_loop_device_file | awk '{print $1}')
echo "Loop Device:" $_loop_device
}

function delete_loop_device {
echo "Delete Loop Device"
losetup -d $_loop_device
rm -f $_loop_device_file
}

function docker_run {
local docker_options=""
local is_loop_device_required=$(get_param_from_file $1 "config.isLoopDeviceRequired")
if [ "$is_loop_device_required" = true ]; then
create_loop_device
docker_options+=" -e LOOP_DEVICE=$_loop_device"
local _loop_device_write_rate=$(get_param_from_file $1 "config.loopDeviceWriteRate")
if [ -n "$_loop_device_write_rate" ]; then
echo "Loop Device write rate:" $_loop_device_write_rate
docker_options+=" --device-write-bps $_loop_device:$_loop_device_write_rate"
fi
fi
docker run --rm \
--name $_container_name \
--cap-add NET_ADMIN \
Expand All @@ -28,7 +61,9 @@ function docker_run {
-v $_atf_ts_dir:/home/developer/atf_ts \
-v $_tmpdirname:/home/developer/sdl \
-v $_sdl_prepared:/home/developer/sdl_ext \
$docker_options \
$_image_name "$@"
if [ "$is_loop_device_required" = true ]; then delete_loop_device; fi
}

function docker_stop {
Expand Down