[GHC] #8733: I/O manager causes unnecessary syscalls in send/recv loops

[GHC]

#8733: I/O manager causes unnecessary syscalls in send/recv loops
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        Reporter:  tibbe             |            Owner:  simonmar
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Runtime System    |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by tibbe):

 @carter it could, but then we might end up yielding before all the content
 has been sent (in case it's spread over several `send`s). We could think
 about having something similar to `TCP_CORK` to have the client
 communicate when it's ready to yield. On the other hand, if the client has
 to deal with this issue she might as well yield manually.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8733#comment:3>
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