Here we maintain few idle workers to avoid the overhead of creation of new threads when requests come in. Since thread creation takes time, it occupies the "critical path" of servicing requests, meaning the server cannot receive and service requests while this is happening.
Here we maintain few idle workers to avoid the overhead of creation of new threads when requests come in. Since thread creation takes time, it occupies the "critical path" of servicing requests, meaning the server cannot receive and service requests while this is happening.
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