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zoran/jvm_opts.sh

Last active April 11, 2019 09:47
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Return reasonable JVM options
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jvm_opts.sh
#!/usr/bin/env bash
CGROUPS_MEM=$(cat /sys/fs/cgroup/memory/memory.limit_in_bytes)
MEMINFO_MEM=$(($(awk '/MemTotal/ {print $2}' /proc/meminfo)*1024))
MEM=$(($MEMINFO_MEM>$CGROUPS_MEM?$CGROUPS_MEM:$MEMINFO_MEM))
JVM_HEAP_RATIO=${JVM_HEAP_RATIO:-0.5}
XMX=$(awk '{printf("%d",$1*$2/1024^2)}' <<<" ${MEM} ${JVM_HEAP_RATIO} ")
echo "-Xmx${XMX}m"
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