There's also a talk "Transactional Memory at Sun" by Mark Moir: http://video.google.com/videoplay?docid=4575567975642725150
The Google Engineer is Luiz Barroso (http://www.barroso.org). He worked for Compaq research before joining Google. At Compaq, he worked on the Piranha project, which IMO is very similar to Niagara. You can watch the archive of his EE380 talk: http://www.stanford.edu/class/ee380/Abstracts/010221.html http://stanford-online.stanford.edu/courses/ee380/010221-ee380-100.asx Rayson On 10/25/07, Rafael Vanoni <[EMAIL PROTECTED]> wrote: > Hi everyone > > I'm here at SBAC-PAD (that's an International Symposium on Computer > Architecture and High Performance Computing). I've been attending > various interesting talks and though I'd share a couple with you. > > Earlier today I attended a talk by prof.Kunle Olukotun about > transactional memory, and got curious as to what this group might have > to say about it. He mentioned that his group is testing it with FPGAs > and getting some good results. > > Another curious thing, at the end of his talk, someone asked him what > would be the implications to operating systems in this world of > multi-core processors. He said that OS'es are picking up very slowly, > and that in Niagara's case, the scheduler was using a lot of cores just > to schedule things around when it first came out. He didn't mention > which OS. > > I'll try to talk to him personally tomorrow, couldn't get to him today. > > Yesterday, a guy from Google (and Luis Barroso, remotely) talked about > power consumption and efficiency for their warehouse-servers (or > land-held computers). He spent most of the time talking about how their > load average is at 30-45% most of the time and that the machines are > wasting electricity by not adapting to that. His numbers pointed that > the CPU is the most efficient component though, and that HDs and network > cards were just wasting power away. > > But as always, they showed the problem and where they would like to be, > but nothing about what they are doing to address those issues. Except > that they are spec'ing their own PSU's. According to their numbers, > regular PSU's waste at least half of the input current just converting > it to a usable level. > > If you have any thoughts on these topics, I'd love to hear it. > > > Rafael > > > > _______________________________________________ > perf-discuss mailing list > perf-discuss@opensolaris.org > _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
