Article View: fa.netbsd.tech.kern
Article #50Re: posix shared memory
From: Eric Haszlakiewicz
Date: Tue, 02 Apr 2013 20:25
Date: Tue, 02 Apr 2013 20:25
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On Tue, Apr 02, 2013 at 02:27:15AM +0000, YAMAMOTO Takashi wrote: > > yamt@mwd.biglobe.ne.jp (YAMAMOTO Takashi) wrote: > >> i have userland implementation of posix shared memory. > >> (attached) > >> > >> rmind proposed a kernel implementation while ago. > >> http://mail-index.netbsd.org/tech-kern/2009/07/30/msg005599.html > > > > However, I would say it would be better to create tmpfs partition > > for this. A while ago I came up with practically same code, but > > also checking for the fs type: > > > > http://www.netbsd.org/~rmind/shm.c > > i don't think it's a good idea to force fstype. > if we want to recommend tmpfs, it's a job for sysinst, not libc. Wouldn't the choice of filesystem have a significant impact on the behaviour? (speed, persistence, need for an actual disk, etc...) Perhaps forcing it might not be a good idea, but it seems like requiring something to be configured, and not having a good default that is known to work, will cause an unnecessary waste of time for anyone that might try to use this. eric
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From: Eric Haszlakiewicz <erh@nimenees.com>
Newsgroups: fa.netbsd.tech.kern
Subject: Re: posix shared memory
Date: Tue, 02 Apr 2013 20:25:28 UTC
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Cc: rmind@netbsd.org, tech-userlevel@netbsd.org, tech-kern@netbsd.org
To: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
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