Forking is expensive, because every forked instance of your program is a full running copy of the original process, but is supported (or at least emulated) in every OS with POSIX support.

Threading is a steeper learning curve and is less universal than forking, but takes minimal resources in comparison. Threading and socket polling let you do things like thousand-connection-a second web servers.

Node (and replies) reparented from duplicate thread Reaped: Threads or Forking? by Arunbear

In reply to Re: Threads or Forking? by japh
in thread Threads or Forking? by Anonymous Monk

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