From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Message-id: From: Pietro Gagliardi To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: <13426df10805271502s7e78ba0dw826dd2f6d982304c@mail.gmail.com> Date: Tue, 27 May 2008 18:54:58 -0400 References: <13426df10805271502s7e78ba0dw826dd2f6d982304c@mail.gmail.com> Subject: Re: [9fans] A shot in the dark Topicbox-Message-UUID: ada43cc2-ead3-11e9-9d60-3106f5b1d025 No, I wasn't around that time :-) But I was looking for the Hello World X11 paper a while back, which was pre-website USENIX. But on the USENIX website it seems that you can purchase papers from before 1991(?). Perhaps they had a paper? On May 27, 2008, at 6:02 PM, ron minnich wrote: > OK, this is a long shot, but i'm running out of ideas. > > Long, long ago, at a Usenix, I saw a talk by some adventurous > australians (are there any other kind?). It was concerning some neat > hardware designed for kernel monitoring. > > They had done a very neat hack. Basically, they modified the C > compiler so that, on function entry and exit, the code would emit a > 16-bit quantity to the parallel port. They had some simple hardware to > grab the data. > > WIth this, they were able to get some nice kernel performance numbers, > all for the (low at the time) cost of an outw to the parallel port. > > OK, I have done some searching and can't find this. IIRC it was > pre-website usenix. I am going to UCB this week and may have time to > hunt it down in the paper archives, but ... just wondering ... anyone > else remember this? > > thanks > > ron >