-- [ Picked text/plain from multipart/alternative ] Since I am not on the Intel platform anymore, I can't help out directly, however Gary, if you want, I can bring a few of my old Dual Xeon 3.2 / 3.0 / 2.8 boxes back online, as well as some P4s.
On 10/12/05, Gary <[EMAIL PROTECTED]> wrote: > > I'm beginning to wonder if certain stepping Xeon's/P4's have this HT > problem. I will investigate this further, but I don't think that is > the case since I have multiple servers with different stepping xeons > and they exhibit the same issues with large servers.. Perhaps it's > cache coherency problems, or one of the many pitfalls of hyperthreading. > > > >If they are both still present you can diff the configurations. > > > >More to the point though, a stock kernel may not support HT, whereas > >unless moronically configured, a newly compiled kernel should use most > >of the target architecture, instead of a generic architecture. > > > >Next, the issue of HT as an architecture. Many of the situations where > >HT has been reported to perform badly are in cases where the server is > >processing two or more SRCDS instances throughout 80% or above of it's > >active processing time. In this scenario you will be suffering a great > >deal of cache hits, and a fair few (but quite regularly timed) context > >switches. What is interesting to note about those who claim better > >results, is they tend to have servers loaded up with other/different > >applications. Careful analysis of other performance data might lead to > >a real conclusion regarding the cause of this issue. How many cache > >misses are occuring with HT on, as opposed to off? What about context > >switches? How do these change if you lock processes to specific > >processors? The list of questions goes on. Sadly, I'm not using any HT > >capable test hardware at present. > > > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, > please visit: > http://list.valvesoftware.com/mailman/listinfo/hlds_linux > -- DJ Fadyeyev Founder e-Plutonia -- _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
