- In software using
fork()system call to spawn child processes to handle client queries, a situation can arise in which the
fork()can take an unreasonably long time. Under an idle situation, this process of spawning a child took a couple of milliseconds. However, as parent process' memory size increases,
fork()will take more and more time to complete. A majority of time appears to be spent on copying the parent's memory page table for the child.
fork()can be seen to take upwards of 1-5 seconds to complete, drastically reducing performance of the overlying application.
- Red Hat Enterprise Linux (all versions)
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