From: Bruno George Moraes <brunogm0@gmail.com>
To: Bufferbloat lists bloat <bloat@lists.bufferbloat.net>
Subject: [Bloat] known buffer sizes on switches
Date: Wed, 28 Nov 2018 14:32:10 -0200 [thread overview]
Message-ID: <CAJpr3FMOr+zC1_oEnDU0s+67b2SLPSELo4esLQY-UCJtOGtKNw@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 836 bytes --]
>
> Nice resource, thanks.
>
> If someone wonders why things look the way they do, so it's all about
> on-die and off-die memory. Either you use off-die or on-die memory, often
> SRAM which requires 6 gates per bit. So spending half a billion gates
> gives you ~10MB buffer on-die. If you're doing off-die memory (DRAM or
> similar) then you'll get the gigabytes of memory seen in some equipment.
> There basically is nothing in between. As soon as you go off-die you might
> as well put at least 2-6 GB in there.
>
>
There are some reasearch on new memory devices with unexpected results...
https://ieeexplore.ieee.org/document/8533260
The HMC memory allows improvements in execution time and consumed energy.
> In some situations, this memory type permits removing the L2 cache from the
> memory hierarchy.
>
HMC parts start at 2GB
[-- Attachment #2: Type: text/html, Size: 1347 bytes --]
next reply other threads:[~2018-11-28 16:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 16:32 Bruno George Moraes [this message]
2018-11-28 16:55 ` Dave Taht
2018-11-28 18:25 ` Dave Collier-Brown
2018-11-28 18:26 ` David Collier-Brown
2018-11-28 19:02 ` Dave Taht
2018-11-28 20:34 ` David Collier-Brown
2018-11-29 2:33 ` Dave Taht
-- strict thread matches above, loose matches on Subject: below --
2018-11-24 23:29 Dave Taht
2018-11-25 6:44 ` Mikael Abrahamsson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://lists.bufferbloat.net/postorius/lists/bloat.lists.bufferbloat.net/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAJpr3FMOr+zC1_oEnDU0s+67b2SLPSELo4esLQY-UCJtOGtKNw@mail.gmail.com \
--to=brunogm0@gmail.com \
--cc=bloat@lists.bufferbloat.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox