From mboxrd@z Thu Jan 1 00:00:00 1970 To: 9fans@cse.psu.edu From: "Douglas A. Gwyn" Message-ID: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit References: <0d7bea785d989cd275b7ca67cfa6cdeb@yourdomain.dom> Subject: Re: [9fans] Threads: Sewing badges of honor onto a Kernel Date: Fri, 27 Feb 2004 10:11:25 +0000 Topicbox-Message-UUID: ff56edbe-eacc-11e9-9e20-41e7f4b1d025 dbailey27@ameritech.net wrote: > Under the "Kernel Space and User Space" heading: [very confused description omitted] > | While this is a clever feat, the downside is that the overhead in maintaining > | the stacks makes this in practice really stupid to do. They found out too > | late that the performance went to hell. Since they had programs which used > | the interface they could not fix it. Instead they had to introduce an additional > | properly-written interface so that they could do what was wise with the stack > | space. ... I don't think any of that is correct.