Announcement

Collapse
No announcement yet.

Intel i9-12900K Alder Lake Linux Performance In Different P/E Core Configurations

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #61
    Originally posted by davidbepo View Post

    they were very successful at showing that...
    I am happy those lads made it, good for them. I got bored listening to their videos on the matter

    Comment


    • #62
      From what I can see it looks like a HT'd P-core has about the same performance as a P-core + E-core combo. While there might be some performance left on the table due to suboptimalscheduling, I wonder if a chip with, say, 12 P-cores wouldn't be a better design than this hybrid mess. It probably wouldn't use much more power that 8P+8E chip, it wouldn't need all kinds of software trickery to work properly and AVX-512 would work out of the box. And considering that Sapphire Rapids will have no E-cores, it'd clearly be doable. I get it that Intel needs something to compete against ARM in the mobile segment but this hybrid core idea looks like a step in the Itanium direction. It *might* be more interesting in laptops.

      Comment


      • #63
        Originally posted by birdie View Post

        I've seen tons of reviews and disabling E-cores may at most net you a few % FPS boost. I see no "mess" here at all, more like W10/W11 schedulers could be a tad better.

        On the other hand Linux cannot properly manage ADL CPUs at all, so I'm not sure what is that people are discussing here at all. Linux users currently should just forget about ADL CPUs altogether. So much for "stellar" hardware support in Linux except when it doesn't support something as basic as a 100% x86-64 compatible CPU.
        Back in to your rat hole

        Comment


        • #64
          Originally posted by birdie View Post
          I've seen tons of reviews and disabling E-cores may at most net you a few % FPS boost. I see no "mess" here at all, more like W10/W11 schedulers could be a tad better.
          Having to disable half of your CPU to *gain*performance is nothing short of a clusterfuck IMO.

          Comment


          • #65
            Is there a setting somewhere to hide posts by users of my choice? A blocklist. I've seen such features on other forums, it is quite a useful feature. I'll have another look in the settings but haven't spotted it yet. Thanks.

            Comment


            • #66
              Originally posted by mr_marmalade View Post
              Is there a setting somewhere to hide posts by users of my choice? A blocklist. I've seen such features on other forums, it is quite a useful feature. I'll have another look in the settings but haven't spotted it yet. Thanks.
              The setting, Ignore List, is at the bottom of the page: https://www.phoronix.com/forums/settings/account

              Comment


              • #67
                Perfect, thank you birdie.

                Comment


                • #68
                  Originally posted by Anux View Post
                  Firefox (on Win here but also on Linux) only loads half the page, mostly on brand new articles and says "waiting for TLS hand shake"
                  Internetexplorer hangs a good while but manages to load the page in the end.
                  load.jpg
                  If you give it enough time (10 min maybe?) firefox completes the webpage loading.
                  It's loading almost instantly here in Kyiv

                  Comment


                  • #69
                    Originally posted by sdack View Post

                    Sorry, but you are wrong.

                    What users expect from a CPU is that it runs all of their software well and not just some of it. These benchmarks show one has to look much closer with Alder Lake than before and one is possibly forced to tweak BIOS settings on Alder Lake systems in order to get the most out of them.

                    This is definitely not what users want. Geeks and nerds may enjoy experimenting with BIOS settings, but the majority of users and developers expect that it just works and that it does so well. So yes, it is a mess Intel has created here, and it is left to others to sort it out.
                    The article clearly shows the best perf and best perf/watt was achieved using the stock configuration. Doesn’t seem to indicate anything is a mess to me. (If you’re gonna comment on an article the least you can do is read it).

                    Comment


                    • #70
                      Originally posted by MadCatX View Post
                      From what I can see it looks like a HT'd P-core has about the same performance as a P-core + E-core combo. While there might be some performance left on the table due to suboptimalscheduling, I wonder if a chip with, say, 12 P-cores wouldn't be a better design than this hybrid mess. It probably wouldn't use much more power that 8P+8E chip, it wouldn't need all kinds of software trickery to work properly and AVX-512 would work out of the box. And considering that Sapphire Rapids will have no E-cores, it'd clearly be doable. I get it that Intel needs something to compete against ARM in the mobile segment but this hybrid core idea looks like a step in the Itanium direction. It *might* be more interesting in laptops.
                      I wonder this as well. The scheduler issues are significant though. Look at the average power consumption for the two scenarios. P only was 50% more power. That’s significant enough to make me hesitant to compare the performance. Also keep in mind intel said that one P core has the same size as 4(!) E cores

                      Comment

                      Working...
                      X