Re: [Haskell-cafe] whatever happened to sendFile?

On 2008 Aug 13, at 18:25, Jason Dusek wrote:

Brandon S. Allbery KF8NH wrote:

...

Right. I intended that to be a heads-up in both directions: it is not simply a library convenience function, so one needs to think about when to use it. In particular, it's possible that overuse of sendfile() in the wrong circumstances will create additional system load instead of reducing it.

Can you say more about this? I assume that sending static images back and forth is a good fit for sendfile().

Your previously stated use case sounds like a good fit. I can easily imagine sendfile() implementations starving other network operations, though (and IIRC linux's early sendfile() implementation did so). It's essentially an optimization specific to web servers. -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH