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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=wN8HwjC+KGffMdPwWXamsoNWC3Nr7EopW+QwjHtwLoc=; b=A+DuTS3gSj3d9Hnf7W3O8311/SjeHaC61169OsXpXnEJ2ySIoYo2sWTBvTLUV5e08x k/wI1axwUJqsBZI9QhAdH5xEjV5PbuSGmzFp1sZeS+nOIXH6iGAthqPpcKk4Dtc+4zrE efb2F9Ep9NF4TLMTohz3t0ccpwM/kfZttpdzT6FJAnbPu0Q8CvfGMWBDrfo1xWh/tce0 BG6JYJHf33axmh5ih0eySKprhsbyrUr3jp6e5+rAqKDQJw4ebYa6gjjgrTRPluTc2yb0 PE9YfRF2JkaIb025IkQEYShJL55PwOZew+9X6PKNw07cCNhnlOpjLC524XUbhN8uCea1 pb8g== X-Gm-Message-State: AFqh2kpBstZnE/FioYVExZXhJx5zuDuFPfW8D2vYRy0oDxvKQ4dsr2eE YD7H7vOe60RFGmgPrF62dbEGX/i7Soaui3LUIUc= X-Google-Smtp-Source: AMrXdXubMvm9bjlSzxWYq7AAilLLAoVKQpvb/SuRdfX++2WyasE2swHn6wJaFLn7KQC2AkMcE1TqN6RRDjmqnaQh2+U= X-Received: by 2002:a05:6512:791:b0:4d2:bbfe:618a with SMTP id x17-20020a056512079100b004d2bbfe618amr2432842lfr.334.1674957580242; Sat, 28 Jan 2023 17:59:40 -0800 (PST) MIME-Version: 1.0 References: <38D49DA9-3C57-4951-8CBA-5D2BB0C40D9C@bytedance.com> <20230123174553.GA341216@bgt-140510-bm01> <20230126165810.GA354177@bgt-140510-bm01> <8C14AC19-4D4C-49B4-85BA-BEA359D9FB3D@bytedance.com> In-Reply-To: From: MTK Date: Sun, 29 Jan 2023 10:59:33 +0900 Message-ID: Subject: Re: [External] [LSF/MM/BPF BoF] Session for CXL memory To: "Viacheslav A.Dubeyko" , Adam Manzanares Cc: David Rientjes , lsf-pc@lists.linux-foundation.org, linux-cxl@vger.kernel.org, linux-mm@kvack.org, Dan Williams , Jonathan Cameron , Duen-wen Hsiao , hannes@cmpxchg.org, Fan Ni , ks0204.kim@samsung.com Content-Type: multipart/alternative; boundary="00000000000095932d05f35d73ca" X-Rspamd-Queue-Id: 401B61C0004 X-Stat-Signature: rr33urm5fg5bzbyfamxdo3au7yztcn8n X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1674957581-75804 X-HE-Meta: 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 Zm13kQKg 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --00000000000095932d05f35d73ca Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I'm sorry, forwarding as plaintext. On Sun, Jan 29, 2023 at 10:45 AM MTK wrote: > > Thank you Mr. Slava and Adam for introducing our research. > > If I was given an opportunity, I would like to share and discuss > - A case of memory tiering solution for CXL memory, Samsung SMDK, which works across userspace and kernelspace : why and how > - Some lessens learned from Industry while CXL integration > - Proposal for possible Linux MM expansions for CXL memory > > Regarding FM topic, I'm also interested in what we should supports for CXL 3.0 and later topology. > > All the best > Kyungsan > > 2023=EB=85=84 1=EC=9B=94 27=EC=9D=BC (=EA=B8=88) =EC=98=A4=EC=A0=84 4:05,= Viacheslav A.Dubeyko < viacheslav.dubeyko@bytedance.com>=EB=8B=98=EC=9D=B4 =EC=9E=91=EC=84=B1: >> >> >> >> > On Jan 26, 2023, at 8:58 AM, Adam Manzanares wrote: >> > >> > On Mon, Jan 23, 2023 at 10:30:34AM -0800, Viacheslav A.Dubeyko wrote: >> >> >> >> >> >>> On Jan 23, 2023, at 9:46 AM, Adam Manzanares < a.manzanares@samsung.com> wrote: >> >>> >> >>> On Sun, Jan 22, 2023 at 09:51:19PM -0800, David Rientjes wrote: >> >>>> On Fri, 6 Jan 2023, Viacheslav A.Dubeyko wrote: >> >>>> >> >>>>> CC: LSF/MM/BPF mailing list. Sorry, missed the list. >> >>>>> >> >>>>>> On Jan 6, 2023, at 11:51 AM, Viacheslav A.Dubeyko < viacheslav.dubeyko@bytedance.com> wrote: >> >>>>>> >> >>>>>> Hello, >> >>>>>> >> >>>>>> I believe CXL memory is hot topic now. I believe we have multiple topics >> >>>>>> for discussion. I personally would like to discuss CXL Fabric Manager >> >>>>>> and vision of FM architecture implementation. I am going to share the topic >> >>>>>> in separate email. I would like to suggest a special session for CXL memory >> >>>>>> related topics. >> >>>>>> >> >>>>>> How everybody feels about it? >> >>>>>> >> >>>> >> >>>> I think this makes a lot of sense, thanks for suggesting it. >> >>>> >> >>>> Should this be a BoF or just a normal topic proposal? I assume that there >> >>>> could be several different topics of interest all related to CXL.mem. >> >>>> >> >>> >> >>> +1 for a normal topic proposal. >> >> >> >> By the way, Samsung SMDK (memory development kit) suggested memory model >> >> in user-space and kernel memory subsystem modification. I assume that we need >> >> to discuss the memory model and kernel-space modification. So, it could be one of >> >> the CXL related topic. Could we expect that Samsung guys deliver a talk? >> > >> > +Kyungsan Kim >> > >> > It is my understanding that Kyungsan, who is the lead for the SMDK project is >> > interested in sharing with the community some lessons learned from working with >> > CXL attached memory and a CFP is planned. >> > >> >> Sounds pretty great for me. :) >> >> Thanks, >> Slava. >> --=20 ------------------------------------------------------------ the person who practices a truth goes toward light. --00000000000095932d05f35d73ca Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I'm sorry, forwarding as plaintext.

On Sun, Jan= 29, 2023 at 10:45 AM MTK <kim1158@= gmail.com> wrote:
>
> Thank you Mr. Slava and Adam for i= ntroducing our research.
>
> If I was given an opportunity, I w= ould like to share and discuss
> - A case of memory tiering solution = for CXL memory, Samsung SMDK, which works across userspace and kernelspace = : why and how
> - Some lessens learned from Industry while CXL integr= ation
> - Proposal for possible Linux MM expansions for CXL memory>
> Regarding FM topic, I'm also interested in what we should= supports for CXL 3.0 and later topology.
>
> All the best
&= gt; Kyungsan
>
> 2023=EB=85=84 1=EC=9B=94 27=EC=9D=BC (=EA=B8= =88) =EC=98=A4=EC=A0=84 4:05, Viacheslav A.Dubeyko <viacheslav.dubeyko@bytedance.com>=EB= =8B=98=EC=9D=B4 =EC=9E=91=EC=84=B1:
>>
>>
>>
= >> > On Jan 26, 2023, at 8:58 AM, Adam Manzanares <a.manzanares@samsung.com> wrote:
= >> >
>> > On Mon, Jan 23, 2023 at 10:30:34AM -0800, Vi= acheslav A.Dubeyko wrote:
>> >>
>> >>
>= > >>> On Jan 23, 2023, at 9:46 AM, Adam Manzanares <a.manzanares@samsung.com> wrote= :
>> >>>
>> >>> On Sun, Jan 22, 2023 at= 09:51:19PM -0800, David Rientjes wrote:
>> >>>> On Fr= i, 6 Jan 2023, Viacheslav A.Dubeyko wrote:
>> >>>>
= >> >>>>> CC: LSF/MM/BPF mailing list. Sorry, missed th= e list.
>> >>>>>
>> >>>>>&g= t; On Jan 6, 2023, at 11:51 AM, Viacheslav A.Dubeyko <viacheslav.dubeyko@bytedance.com> = wrote:
>> >>>>>>
>> >>>>>= ;> Hello,
>> >>>>>>
>> >>>&= gt;>> I believe CXL memory is hot topic now. I believe we have multip= le topics
>> >>>>>> for discussion. I personally= would like to discuss CXL Fabric Manager
>> >>>>>&= gt; and vision of FM architecture implementation. I am going to share the t= opic
>> >>>>>> in separate email. I would like t= o suggest a special session for CXL memory
>> >>>>>= > related topics.
>> >>>>>>
>> >&= gt;>>>> How everybody feels about it?
>> >>>&= gt;>>
>> >>>>
>> >>>> I thi= nk this makes a lot of sense, thanks for suggesting it.
>> >>= ;>>
>> >>>> Should this be a BoF or just a norma= l topic proposal?=C2=A0 I assume that there
>> >>>> co= uld be several different topics of interest all related to CXL.mem.
>= > >>>>
>> >>>
>> >>> +1 = for a normal topic proposal.
>> >>
>> >> By t= he way, Samsung SMDK (memory development kit) suggested memory model
>= ;> >> in user-space and kernel memory subsystem modification. I as= sume that we need
>> >> to discuss the memory model and kern= el-space modification. So, it could be one of
>> >> the CXL = related topic. Could we expect that Samsung guys deliver a talk?
>>= ; >
>> > +Kyungsan Kim
>> >
>> > It = is my understanding that Kyungsan, who is the lead for the SMDK project is<= br>>> > interested in sharing with the community some lessons lear= ned from working with
>> > CXL attached memory and a CFP is pla= nned.
>> >
>>
>> Sounds pretty great for me. = :)
>>
>> Thanks,
>> Slava.
>>

--
------------------------------------------------------------
th= e person who practices a truth goes toward light.
--00000000000095932d05f35d73ca--