Reason for Crazy CXL Names

By: anon2 (, July 1, 2022 7:56 pm
Room: Moderated Discussions
Eric P ( on July 1, 2022 2:48 pm wrote:
> > > > > > it would be better for their customers and for CXL if the different CXL options were
> > > > > > named by their intended application, such as CXL.nic, CXL.gpu and CXL.dram
> > > > >
> > > > > Intel might be intentionally trying to make the names confusing so less people realize that CXL.mem in
> > > > > Sapphire Rapids has some bugs. Intel is probably worried that they will look bad if AMD’s Genoa processor
> > > > > has working versions of all 3 CXL protocols and Sapphire
> > > > > Rapids doesn’t. By intentionally creating confusion,
> > > > > Intel could be trying to buy time while they fix the bugs in CXL.mem in Sapphire Rapids.
> > > >
> > > > I wouldn't be surprised if they wanted CXL to die die die. They like having the CPU in charge of everything.
> > >
> > > If they wanted CXL dead then wasn't it simpler to not invent it 3 years ago?
> > >
> >
> > They simply don't want cache coherent peripherals (except
> > perhaps occasionally when entirely owned by Intel).
> > Their hand was forced by AMD, ARM, IBM, Nvidia, etc. threatening to develop their own standards.
> >
> > CXL was entirely about having more control of the standard. They don't want it, but even less do they
> > want competition to create an ecosystem around a standard they might have to eventually adopt.
> >
> > Exact same scenario happened with amd64 except that time AMD kept it secret long enough that Intel wasn't
> > able to change Microsoft course. A big black eye for them and something they are terrified of. Hence CXL.
> Do you think CXL can be successful when the company driving it is conflicted
> about whether it really wants cache coherent peripherals?

There is now much more than Intel driving it. If Intel drops out, others will continue with it, no stopping that now.

> With PCIe 4, Intel dragged their feet for 7 years because faster PCIe speeds meant fewer servers needed. If the
> first version of CXL has some problems, will Intel drag their feet for 7 years before fixing the problems?

I don't know how the governing body works but unlikely Intel could unilaterally hold it up. There is already CXL 2.0.

> In any case, it must be very annoying for AMD to have to implement both
> CXL and Infinity Fabric Link (same for NVIDIA with CXL and NVLink).

And IBM and OpenCAPI. I think ARM had something in the works too.

I think the reality is (maybe aside from Nvidia) probably that they'll be happy enough to finally have a standard that has a chance of getting broad adoption.
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TopicPosted ByDate
Crazy CXL NamesPeter Lewis2022/05/30 03:54 PM
  Crazy CXL Namesanon22022/05/30 07:19 PM
    Crazy CXL NamesPeter Lewis2022/05/30 09:30 PM
      Crazy CXL Namesanon22022/05/31 02:24 AM
        Crazy CXL NamesPeter Lewis2022/05/31 02:43 AM
          Crazy CXL Namesanon22022/05/31 03:01 AM
            Crazy CXL NamesPeter Lewis2022/05/31 03:36 AM
              Crazy CXL Namesanon22022/05/31 04:32 AM
                Crazy CXL NamesPeter Lewis2022/05/31 05:21 AM
                  Crazy CXL Namesanon22022/05/31 06:03 AM
                    Crazy CXL NamesPeter Lewis2022/05/31 04:27 PM
                      Crazy CXL Namesanon22022/05/31 04:58 PM
                      Crazy CXL Namesgoose2022/05/31 05:35 PM
                        Crazy CXL NamesPeter Lewis2022/06/03 03:10 AM
                          Reason for Crazy CXL NamesGary Kopp2022/06/24 01:43 PM
                            Reason for Crazy CXL Namesdmcq2022/06/25 11:18 AM
                              Reason for Crazy CXL NamesMichael S2022/06/26 01:30 AM
                                Reason for Crazy CXL NamesDummond D. Slow2022/06/26 06:49 AM
                                  Reason for Crazy CXL NamesMichael S2022/06/26 07:32 AM
                                    Reason for Crazy CXL Namesdmcq2022/06/26 11:54 AM
                                Reason for Crazy CXL Namesanon22022/06/26 03:26 PM
                                  Reason for Crazy CXL NamesEric P2022/07/01 02:48 PM
                                    Reason for Crazy CXL Namesanon22022/07/01 07:56 PM
                                      Reason for Crazy CXL NamesGroo2022/07/02 05:13 AM
                                    Reason for Crazy CXL NamesUngo2022/07/01 11:14 PM
                                      Reason for Crazy CXL NamesEric P2022/07/05 03:21 AM
                      Crazy CXL NamesDoug S2022/06/01 12:44 AM
    Crazy CXL NamesMichael S2022/05/31 01:21 AM
      Crazy CXL Namesanon22022/05/31 02:20 AM
      Crazy CXL NamesPeter Lewis2022/05/31 02:24 AM
        Crazy CXL NamesMichael S2022/05/31 03:07 AM
          Crazy CXL NamesPeter Lewis2022/05/31 04:37 AM
            Current NVidia GPU Launch Latency: 10 microsecondsMark Roulo2022/05/31 01:07 PM
              Current NVidia GPU Launch Latency: 10 microsecondsFreddie2022/06/01 09:44 AM
      Crazy CXL Names---2022/05/31 07:56 PM
        Crazy CXL Namesaaron spink2022/05/31 08:32 PM
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