Date: Wed, 26 Mar 2003 10:57:07 +0300 From: Alex <alex@dynaweb.ru> To: FreeBSD hackers list <freebsd-hackers@freebsd.org> Subject: Some specific questions about 5.x Message-ID: <3E815D53.6010404@dynaweb.ru>
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Hi everybody! I was so much enthusiastic about kernel threads implemented in 5.x but some ugly rumors spoiled my dreams :0) So I want to get if these rumors are myths or not. 1. Is it true that kernel threads are more "heavy" than userspace ones (pthread) and hence application with hundreds of threads will work evidently slower than that using pthreads due to more switching penalties? 2. Is it true that even 5.x has no implementation for inter-process semaphores that are blocking calling thread only not the whole process as usually in FreeBSD? Alex
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