Date: Sat, 28 Oct 2006 14:01:44 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: Robert Watson <rwatson@FreeBSD.org> Cc: Paul Allen <nospam@ugcs.caltech.edu>, Julian Elischer <julian@elischer.org>, Lev Serebryakov <lev@FreeBSD.org>, current@FreeBSD.org Subject: Re[2]: KSE, libpthread & libthr: almost newbie question Message-ID: <219211614.20061028140144@serebryakov.spb.ru> In-Reply-To: <20061028104741.Q69980@fledge.watson.org> References: <917908193.20061027102647@serebryakov.spb.ru> <20061027103924.F79313@fledge.watson.org> <45426071.7020403@elischer.org> <602423478.20061028001449@serebryakov.spb.ru> <4542896D.1050001@elischer.org> <20061027231642.GJ30707@riyal.ugcs.caltech.edu> <45429703.8070305@elischer.org> <20061028104741.Q69980@fledge.watson.org>
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Hello Robert,
Saturday, October 28, 2006, 1:48:52 PM, you wrote:
RW> Does the JVM actually expose thousands of threads to the OS, or does it
RW> actually do its own M:N threading internally based on its execution
RW> model?
RW> My impression is the latter, exposing threads to the OS only when it
RW> needs them to consume kernel or CPU resources.
Wrong. Java used to be N:M ("green threads") a long time ago, and all actual versions (1.4, 1.5, future 1.6) uses 1:1 model.
--
Best regards,
Lev mailto:lev@FreeBSD.org
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