Inside the Gigablast

keyword: signal-based

The heart of the Gigablast process is the I/O control loop.

If queue is full, kernel will deliver SIGIO to gp process.

g_udpServer

Loop.cpp

 

   registerCallback()

   sleep callbacks ( every X milliseconds)

   SIGCHLD - a thread exits.

   Callback Priority

   doPoll() just calls low priority callbacks

   priority method is similar to the low latency patch in the Linux kernel

Threads.cpp

   clone()

 

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