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#!/bin/sh
#
# Run obnam with various node and chunk sizes, in order to see which ones
# are optimal.
set -e
datadir="$1"
sizes="8kib 16kib 32kib 64kib 128kib 256kib 512kib 1024kib"
sizes="8kib 16kib"
conf="$(mktemp)"
rm -rf try-sizes
mkdir try-sizes
for node_size in $sizes
do
for chunk_size in $sizes
do
echo --------------------------------
echo "node=$node_size chunk=$chunk_size"
cat << eof > "$conf"
[config]
chunk-size = $chunk_size
node-size = $node_size
eof
output="try-sizes/${node_size}-${chunk_size}.seivot"
$HOME/seivot/trunk/seivot \
--output="$output" \
--drop-caches \
--obnam-config="$conf" \
--generations=2 \
--incremental=1 \
--use-existing="$datadir" \
--obnam-branch=. \
--larch-branch=$HOME/larch/trunk \
--description="node=$node_size chunk=$chunk_size" \
--profile-name="real data"
done
done
rm -f "$conf"
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