linux-kernel - Re: [take22 0/4] kevent: Generic event handling mechanism.

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Message-ID: <20061101162403.GA29783@2ka.mipt.ru>
Date:	Wed, 1 Nov 2006 19:24:03 +0300
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Pavel Machek <pavel@....cz>
Cc:	David Miller <davem@...emloft.net>,
	Ulrich Drepper <drepper@...hat.com>,
	Andrew Morton <akpm@...l.org>, netdev <netdev@...r.kernel.org>,
	Zach Brown <zach.brown@...cle.com>,
	Christoph Hellwig <hch@...radead.org>,
	Chase Venters <chase.venters@...entec.com>,
	Johann Borck <johann.borck@...sedata.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [take22 0/4] kevent: Generic event handling mechanism.

On Wed, Nov 01, 2006 at 05:05:51PM +0100, Pavel Machek (pavel@....cz) wrote:
> Hi!

Hi Pavel.

> > Kevent is a generic subsytem which allows to handle event notifications.
> > It supports both level and edge triggered events. It is similar to
> > poll/epoll in some cases, but it is more scalable, it is faster and
> > allows to work with essentially eny kind of events.
> 
> Quantifying "how much more scalable" would be nice, as would be some
> example where it is useful. ("It makes my webserver twice as fast on
> monster 64-cpu box").

Trivial kevent web-server can handle 3960+ req/sec on Xeon 2.4Ghz with
1Gb RAM, epoll based - 2200-2500 req/sec.
100 Mbit wire is filled almost 100% (10582.7 KB/s of data without
TCP and below headers).
More benchmarks created by me and Johann Borck can be found on project's 
homepage as long as all my sources used in tests.

-- 
	Evgeniy Polyakov
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