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authorJeroen Koops <[email protected]>2011-02-08 22:53:55 +0100
committerIngela Anderton Andin <[email protected]>2011-03-07 13:50:07 +0100
commitc034b8ce819cfe1171720499387815ae8dc84bc9 (patch)
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parent5ef5d6a216815c13ce671df07bd0125b317f5969 (diff)
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Add the option { hibernate_after, int() } to ssl:connect and ssl:listen
When making an SSL connection (either as client or as server), the process implementing the connection may use as much as hundreds of kilobytes of memory, even when idle. This is problematic for any application maintaining more than just a few SSL connections. This patch introduces the option { hibernate_after, int() } to the ssl:connect and ssl:listen functions, making the SSL connection process go into hibernation after the specified number of milliseconds of inactivity. This will reduce the memory used by the process to just a few hundred bytes, making applications with thousands or more SSL connections feasible, as long as most of the connections are idle for most of the time (which is typically the case). The approach of making the process go into hibernation only after some time of inactivity was chosen because hibernation incurs some CPU usage, and it is therefore not desirable for a process to hibernate after each call.
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