Performance implications of -XX:+/-PerfDisableSharedMem | Lobsters

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Performance implications of -XX:+/-PerfDisableSharedMem java performance github.com
via serce 6 months ago | archive
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  Flow 6 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?