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#!/bin/sh
# Could be written in one line, but for better editing when values change...
MEM=$(grep ^MemTotal /proc/meminfo | awk '{print $2}') # RAM in KB
MEM=$(( MEM / 1024 / 4 )) # to MB, and assess a fourth of RAM for PHP
CHILDREN=$(( MEM / 16 )) # assume 16 MB per child
# min 16, no more than 128 (inverse logic to handle NaN)
[ "$CHILDREN" -ge 16 ] || CHILDREN=16
[ "$CHILDREN" -le 128 ] || CHILDREN=128
## Use ?? in case the ordering changes one day
file=$(echo /etc/lighttpd/conf-enabled/??-fastcgi-php.conf)
if [ -f "$file" ]; then
sed -i 's/"PHP_FCGI_CHILDREN.*$/"PHP_FCGI_CHILDREN" => "'$CHILDREN'",/' "$file"
if ! grep -qF '"PHP_FCGI_CHILDREN" => "'$CHILDREN'"' "$file"; then
echo "WARNING: Cannot adjust php cgildren count for fastcgi -- line not found in $file" >&2
fi
else
echo "WARNING: Cannot adjust php children count for fastcgi -- file not found" >&2
exit 1
fi
exit 0
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