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Concurrencia vs
Paralelismo
Estado Actual
❖ Un único thread
❖ Corutinas cooperativas (Fibers)
❖ Event Loop
❖ Canales de Mensajes (CSP)
Un Proceso CrystalFiber
#1
Fiber#2
Fiber#3
Fiber#…
RuntimeScheduler
Event Loop
Archivos
Sockets
Pipes
Signals
Timers
Channels
GC
Fibers
❖ Cooperativos ❖ Livianos (desde 4KB)❖ En 32 bit: máx. 512 fibers❖ En 64 bit: millones y millones...
Fiber
Stack(8MB)
4KB
Fibers
spawn do
# ...
end
Event Loop
Event Loop Fiber
libevent
epoll, kqueue, etc…
Sistema Operativo
Event Loop
spawn do
...
@socket.read(…)
...
end
spawn do
...
sleep 5
...
end
Canales
❖ Permiten comunicar fibers sin compartir memoria
❖ Basados en CSP, similares a los canales de Go
❖ Dos tipos:
❖ Unbuffered
❖ Buffered
DEMO
Futuro
❖ Operador select para multiplexar operaciones en un mismo fiber
❖ Multithreading
❖ Loop fiber nativo (sin libevent)
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