Reason for Crazy CXL Names

By: Michael S (, June 26, 2022 7:32 am
Room: Moderated Discussions
Dummond D. Slow ( on June 26, 2022 6:49 am wrote:
> Michael S ( on June 26, 2022 1:30 am wrote:
> > dmcq ( on June 25, 2022 11:18 am wrote:
> > > Gary Kopp (gary.kopp.delete@this.x.x) on June 24, 2022 1:43 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?
> >
> But then a similar technology would be standardised by competitors and that would be even worse,
> I assume. Not that I thought the idea of Intel wanting CXL gone was true, though maybe some groups
> or isolated people in the company do. Or they regret they opened the ecosystem to others.

Without any knowledge of Intel internal politics, I would think that there shouldn't be any opposition to CXL-attached memory. It's a small harmless potentially very profitable niche.
As to other two, I can see people not happy about because it's essentially PCIe, so why add another sub-standard that adds so little? Occcam strikes against it.
Also I can see opposition to CXL-ccIo for an exact opposite reason - it's too big a change from PCIe with unclear and possibly very bad consequences to system performance unless absolutely everything done perfectly right. Also, it appears to rely on technologies (in-memory cache directory or big snap filters) that are unlikely to ever be incorporated into client silicon in uncompromising manner.
So, it's going to cause a yet another split in experience between low end and high end. I.e. something that I suppose "server" people love, but "client" people hate.

But, of course, I am looking at it from technical angle, which more often than not is a wrong angle to look for one who really want to understand corporate politics.
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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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