Gentoo Linux Ending Itanium IA-64 Support

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  • phoronix
    Administrator
    • Jan 2007
    • 67377

    Gentoo Linux Ending Itanium IA-64 Support

    Phoronix: Gentoo Linux Ending Itanium IA-64 Support

    Gentoo Linux was one of the last few Linux distributions continuing to maintain Itanium (IA-64) architecture builds but that is now being phased out for those discontinued Intel processors...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite
  • duby229
    Senior Member
    • Nov 2007
    • 7782

    #2
    All hail AMD64!

    Comment

    • chuckula
      Senior Member
      • Dec 2011
      • 847

      #3
      The funny part is that IA64 is probably one of the best architectures ever developed for avoiding side-channel attacks.
      If Lisa Su got up on stage and re-announced it as a "high security" architecture with "AI software instruction scheduling" in the compiler, people would call her an innovative genius

      Comment

      • duby229
        Senior Member
        • Nov 2007
        • 7782

        #4
        Originally posted by chuckula View Post
        The funny part is that IA64 is probably one of the best architectures ever developed for avoiding side-channel attacks.
        If Lisa Su got up on stage and re-announced it as a "high security" architecture with "AI software instruction scheduling" in the compiler, people would call her an innovative genius
        You aren't wrong...

        The way I understand it is that IA-64 was an architecture called EPIC and it was essentially a specialized VLIW architecture. More or less what modern NPUs are...

        Comment

        • Rallos Zek
          Senior Member
          • Sep 2011
          • 341

          #5
          Originally posted by chuckula View Post
          The funny part is that IA64 is probably one of the best architectures ever developed for avoiding side-channel attacks.
          If Lisa Su got up on stage and re-announced it as a "high security" architecture with "AI software instruction scheduling" in the compiler, people would call her an innovative genius
          IA64 and by extension VLIW/EPIC acrhs are not so great at general compute work. There's a reason why no modern GPU use VLIW anymore after it being the preferred tech back in 2000s. VILW is so bad it make 50 years old x86 look great! Only thing VLIW are great at are DSP work.

          Comment

          • CommunityMember
            Senior Member
            • Oct 2019
            • 1379

            #6
            Originally posted by chuckula View Post
            The funny part is that IA64 is probably one of the best architectures ever developed for avoiding side-channel attacks.
            The implementations actually enabled prediction, speculation, and branch predictions. Whether those would have been vulnerable to the various well known side-channel attacks (or some others) is not clear. I don't think any of the usual researches tried to obtain access to a IA64 system to test.

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            • Dawn
              Senior Member
              • Aug 2016
              • 203

              #7
              Originally posted by CommunityMember View Post

              The implementations actually enabled prediction, speculation, and branch predictions. Whether those would have been vulnerable to the various well known side-channel attacks (or some others) is not clear. I don't think any of the usual researches tried to obtain access to a IA64 system to test.
              They would very likely not. The one exception, I would think, would be spying on another process's control flow by watching the ALAT, but that would be marginal in terms of what it gets you and complex to pull off.
              Last edited by Dawn; 14 August 2024, 02:47 PM.

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              • pWe00Iri3e7Z9lHOX2Qx
                Senior Member
                • Jul 2020
                • 1595

                #8
                Good riddance. Nobody is still using these things in enterprise, and they weren't even popular as used gear for consumers. The fastest chip was a 32nm 8 core 16 thread SKU with a 2.66GHz base clock. You can get a 14nm Broadwell Xeon with 14 cores and 28 threads that does 3.2GHz all core turbo for $20 USD while using 35W less power.

                Comment

                • Dawn
                  Senior Member
                  • Aug 2016
                  • 203

                  #9
                  Originally posted by pWe00Iri3e7Z9lHOX2Qx View Post
                  Nobody is still using these things in enterprise,
                  This is not even close to true. (In fact, there are many thousands of systems in active use, and some degree of panic among the userbase about the impending end of active HP-UX development.)

                  Comment

                  • pWe00Iri3e7Z9lHOX2Qx
                    Senior Member
                    • Jul 2020
                    • 1595

                    #10
                    Originally posted by Dawn View Post

                    This is not even close to true. (In fact, there are many thousands of systems in active use, and some degree of panic among the userbase about the impending end of active HP-UX development.)
                    Yes, my choice of words was poor. But the impending HP-UX Itanium powered EOL has been known about for half a decade. And Itanium was obviously a dead end for a full decade at this point. Big enterprise tends to move extremely slowly for migration like this. But it's hard for me to feel bad for them in this particular case.

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