It does not need to be equipped with SST-RAM, having a nice opensource
SSD would be something I would buy - if the openness of it can show the
reality (about block erase count, errors to be found) and it would do
what us - the users want (more conservative behaviour rather than insane
speeds).
My first experience with SSD's was in my wife's laptop (I thought the
SSD will bear better the use in). Her drive after 3 months of normal use
stopped working - the fail led is lit and the drive is no longer
recognized by the computer.
After little discussion with the drive/chip manufacturers (OCZ and
Sandforce), where both are claiming the issue to be due to opposite side
and none of them was able to supply any documentation... so I ended up
with 16 nand flash devices to experiment with :)
On the contrary to that, Micron as the actual chip maker behaves very
nicely and I think if we start making SSD (on the open-hardware part of
the movement), we could get more market share than with GPUs (in the
short-term). And that is even if we make a plain storage with no wear
levelling (and delegate that to BTRFS or similar intelligent filesystem).
What does other think?
On 12/12/2012 05:36 PM, Timothy Normand Miller wrote:
All true. But exotic RAM devices are a hot topic and something I might
be able to get funding to work on. What would be great is if we could
turn that into something like a fast open source SSD. Could be a long
time, though, but STT-RAM devices have been produced.
Areas to innovate:
- Block erasure, mapping, and access scheduling algorithms
- Error correcting codes
- Host interfaces
- We should look at conference proceedings for other stuff
STT-RAMs don't require wear-leveling.
On Wed, Dec 12, 2012 at 12:44 AM, Jack Carroll <[email protected]
<mailto:[email protected]>> wrote:
For a non-volatile memory, that's fast. But a framebuffer doesn't
need nonvolatile memory.
Jack Carroll
----- Original Message -----
From: "Dieter BSD" <[email protected]
<mailto:[email protected]>>
To: [email protected] <mailto:[email protected]>
Sent: Tuesday, December 11, 2012 3:37:09 PM
Subject: [Open-graphics] low power, non-volatile memory
Slightly off-topic, but we are going to be needing memory.
spin transfer torque magnetoresistive random access memory (STT-MRAM)
"improved speed while reducing power consumption by 90%"
Less power than SRAM and non-volatile. But...I must be reading the graph
wrong, looks like 300ns? Isn't that obscenely slow for 2012? Also
isn't clear if they have actually built and tested it or just
simulated it.
http://www.xbitlabs.com/news/memory/display/20121210213212_Toshiba_s_STT_MRAM_Memory_Element_Promises_World_s_Best_Power_Consumption.html
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--
Timothy Normand Miller, PhD
Assistant Professor of Computer Science, Binghamton University
http://www.cs.binghamton.edu/~millerti/
<http://www.cse.ohio-state.edu/~millerti>
Open Graphics Project
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