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Adapted logic for optimal blocksize

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Kevin Veen-Birkenbach 2022-10-21 15:57:42 +02:00
parent 86b62a8805
commit 05ed400c32
1 changed files with 8 additions and 2 deletions
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10
scripts/base.sh
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@ -78,9 +78,15 @@ set_device_path(){
then
error "$device_path is not valid device."
fi
info "Device path set to: $device_path"
# @see https://www.heise.de/ct/hotline/Optimale-Blockgroesse-fuer-dd-2056768.html
OPTIMAL_BLOCKSIZE=$(expr 64 \* "$(sudo cat /sys/block/"$device"/queue/physical_block_size)") &&
info "Device path set to: $device_path" &&
PHYSICAL_BLOCK_SIZE_PATH="/sys/block/$device/queue/physical_block_size"
if [ -f "$device_path" ]
then
OPTIMAL_BLOCKSIZE=$(expr 64 \* "$(sudo cat $PHYSICAL_BLOCK_SIZE_PATH)") || error
else
OPTIMAL_BLOCKSIZE="1KB"
fi
info "Optimal blocksize set to: $OPTIMAL_BLOCKSIZE" ||
error
}