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Subject: Re: [boost] Boost.Fiber review January 6-15
From: Thomas Heller (thom.heller_at_[hidden])
Date: 2014-01-16 09:12:49

On 01/16/2014 03:22 AM, Hartmut Kaiser wrote:
>> The review of Boost.Fiber by Oliver Kowalke begins today, Monday January
>> 6th, and closes Wednesday January 15th.
> For the sake of completeness, I vote to REJECT the library for acceptance
> into Boost in its current form. For my reasoning please see the lengthy
> discussion in the email thread '[Fibers] Performance'.

I am supporting this vote to REJECT the library in its current form for
the very same reasons. I hope it's not too late for the vote to count.


> Regards Hartmut
> ---------------
>> -----------------------------------------------------
>> About the library:
>> Boost.Fiber provides a framework for micro-/userland-threads (fibers)
>> scheduled cooperatively. The API contains classes and functions to manage
>> and synchronize fibers similar to Boost.Thread. Each fiber has its own
>> stack.
>> A fiber can save the current execution state, including all registers and
>> CPU flags, the instruction pointer, and the stack pointer and later
>> restore this state. The idea is to have multiple execution paths running
>> on a single thread using a sort of cooperative scheduling (versus threads,
>> which are preemptively scheduled). The running fiber decides explicitly
>> when it should yield to allow another fiber to run (context switching).
>> Boost.Fiber internally uses coroutines from Boost.Coroutine; the classes
>> in this library manage, schedule and, when needed, synchronize those
>> coroutines. A context switch between threads usually costs thousands of
>> CPU cycles on x86, compared to a fiber switch with a few hundred cycles. A
>> fiber can only run on a single thread at any point in time.
>> docs:
>> git:
>> src:
>> The documentation has been moved to another site; see the link above.
>> If you have already downloaded the source, please refresh it; Oliver has
>> added some new material.
>> ---------------------------------------------------
>> Please always state in your review whether you think the library should be
>> accepted as a Boost library!
>> Additionally please consider giving feedback on the following general
>> topics:
>> - What is your evaluation of the design?
>> - What is your evaluation of the implementation?
>> - What is your evaluation of the documentation?
>> - What is your evaluation of the potential usefulness of the library?
>> - Did you try to use the library? With what compiler? Did you have any
>> problems?
>> - How much effort did you put into your evaluation? A glance? A quick
>> reading? In-depth study?
>> - Are you knowledgeable about the problem domain?
>> Nat Goodspeed
>> Boost.Fiber Review Manager
>> ________________________________
>> _______________________________________________
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