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    Performance implications of -XX:+/-PerfDisableSharedMem java performance github.com
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    Flow avatar Flow 2 months ago | link

    I first wondered: Since /tmp/ is a tmpfs mount on many (most?) Linux installations these days, shouldn’t this be simply a non-issue now?

    But then I logged into an EC2 instance and found /tmp/ not being a tmpfs. Is this a cloud ting? Or did I just by chance checked the one EC2 installation that doesn’t mount /tmp/ as tmpfs?