libvips/test/test_threading.sh

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#!/bin/sh
# set -x
2014-11-20 15:36:04 +01:00
. ./variables.sh
exit_code=0
$vips im_benchmarkn || exit_code=$?
if [ $exit_code -ne 0 ]; then
echo "im_benchmark is not available, skipping test"
exit 0
fi
chain=1
# im_benchmark needs a labq
$vips colourspace $image $tmp/t3.v labq
for tile in 10 64 128 512; do
# benchmark includes a dither which will vary with tile size
$vips --vips-concurrency=1 \
--vips-tile-width=$tile --vips-tile-height=$tile \
im_benchmarkn $tmp/t3.v $tmp/t5.v $chain
for cpus in 2 3 4 5 6 7 8 99; do
echo trying cpus = $cpus, tile = $tile ...
$vips --vips-concurrency=$cpus \
--vips-tile-width=$tile --vips-tile-height=$tile \
im_benchmarkn $tmp/t3.v $tmp/t7.v $chain
$vips subtract $tmp/t5.v $tmp/t7.v $tmp/t8.v
$vips abs $tmp/t8.v $tmp/t9.v
max=$($vips max $tmp/t9.v)
if [ $(echo "$max > 0" | bc) -eq 1 ]; then
break
fi
done
if [ $(echo "$max > 0" | bc) -eq 1 ]; then
break
fi
done
if [ $(echo "$max > 0" | bc) -eq 1 ]; then
echo error, max == $max
exit 1
else
echo all threading tests passed
fi