Subject: [boost] [asio] Re: Pass some parameter to io_service::run
From: Dmytro Ovdiienko (dmitriy.ovdienko_at_[hidden])
Date: 2010-06-24 16:37:43
James, it is not academic reason. I need latency 1-2us. Right now I have
15us. I cannot waste time on locks and I cannot create bottlenecks.
And how about just let user pass "void *"? I know it is not type safe...
maybe boost has something like type-safe variable argument list?
On 11 January 2010 17:13, James Mansion <james_at_[hidden]>wrote:
> Dmytro Ovdiienko wrote:
>> I don't understand why you would have an objection to a permanent
>> binding with TLS
>> TLS looks like global variables. Global variables violate encapsulation. I
>> suppose to support my program at least 2 years. I don't want to hate myself
>> two years :)
> I think that's quite a silly reason. So are singletons, but they are both
> useful. ...
>> a temporary binding using a pool of parsers, since it seems that
>> each datagram must be
>> parsed entirely and then the parser reset for the next?
>> Exactly. But I don't want to create pool of the parsers. Access to the
>> pool should be synchronized. Synchronization eats CPU times.
> ... but not nearly as silly as this one. Getting an item from a pool is a
> great candidate for a spinlock and if you're concerned you can easily
> segment the pool. Its a non-issue. I defy you to measure it in the context
> of all teh context switching and system calls you're doing.
> Of course, the pool is a singleton. And that's like a global.
> The right tools to get you what you want are right there - you're just
> choosing not to use them for academic reasons.
-- Dmytro Ovdiienko e-mail: dmitriy.ovdienko_at_[hidden] skype: dmitriy.ovdienko_at_[hidden] mobile: +38050-1909731 -- Dmytro Ovdiienko e-mail: dmitriy.ovdienko_at_[hidden] skype: dmitriy.ovdienko_at_[hidden] mobile: +38050-1909731
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