SINGLESOCK - How much to strip away?

Eric S. Raymond esr at
Wed May 30 19:17:11 UTC 2018

Hal Murray:
>As much as I'd like to clean up this area, I think we should put it on the 
>back burner for now.

What makes it a better idea to wait?

>There is a slightly related area that needs cleaning up.  There are no 
>externally visible impacts so there is no reason not to do it.  I don't have 
>a good tag.  Maybe RECVBUF.
>The current code has a queue of free buffers.  When a packet arrives, the IO 
>code gets a buffer, reads in the data, and puts it on the work queue.  
>Another loop takes buffers off the work queue and processes them.  The 
>process-it code puts the buffer back on the free queue.
>All that queuing stuff is wasted effort.  It made sense back when the code 
>read the data is a signal handler to get better arrival timing.  We now get 
>good timing from the kernel.  Bouncing around on queues isn't doing anything 
>other than keeping the CPU warm.
>There may be some rough edges with refclocks.  They will be easy to fix.

I agree. You've complained about this before and I think you were
right that time, too.

Are you interested in doing this yourself?
		<a href="">Eric S. Raymond</a>

When all government little as in great things... shall be drawn to
Washington as the center of all power; it will render powerless the checks
provided of one government on another, and will become as venal and oppressive
as the government from which we separated."	-- Thomas Jefferson, 1821

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