Can't get enough to keep Android Studio happy.
Want 1.5TB of RAM in Your PC? It Will Cost You
41–50 of 62 posts
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#42This is a use case where persistent memory really shines. Its about 10x slower but you can get 1.5TB or it for less than $10,000. You don’t have to use the persistence - you can treat it as RAM.
with VROC or the Threadripper equivalent NVME CPU RAID, you can get 7Gbps read speed from a RAID5. Thats DDR2 speed. Unless you truly need DDR4 speeds, I would think you would be better off for your money using CPU Raid and NVME. More drives, more speed. One guy used 8 drives and got 28Gbps. https://i.imgur.com/AuCWq3r.jpg
Linear throughput is the wrong way to think about this. Random access is much more important for DRAM workloads. Persistent memory has a block size of 4 cache lines (256 bytes) vs 4KB for an SSD. This drastically cuts down on read/write amplification.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#43Is it just me, or is it becoming too commonplace for an article to have a video attached to it that is vaguely related? The video attached to this article is how to upgrade the mac mini to 32GB of ram. Interesting, but just left of adjacent in terms of how it's related to this article.
I asked me the same after starting watching the video because I couldn't believe that the article was really that short.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#44I want to know why ECC RAM isn't more common. With the amount of RAM going into today's computers, it's insane not to protect it.
It’s a market segmentation issue for Intel, which AMD has started undermining but has not yet frontally attacked - perhaps they still have plans to (ab)use it themselves.
ECC is exactly why my last system build was a Ryzen.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#45If you're an enterprise that needs a single CPU server with 1.5TB of RAM (to run SAP HANA or some other in-memory DB most likely) then the RAM cost, or really the entire hardware cost, is probably the smallest line item in the entire business case, more or less a rounding error. The author seems to be approaching this from the standpoint of someone building a home rig for some reason.
I have been buying 1Tb+ servers for years now, most recently to run Redis. $50k for a box is nothing when you consider we used to spend 10-20x that on Sun or SGI boxes.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#46Is it just me, or is it becoming too commonplace for an article to have a video attached to it that is vaguely related? The video attached to this article is how to upgrade the mac mini to 32GB of ram. Interesting, but just left of adjacent in terms of how it's related to this article.
I asked me the same after starting watching the video because I couldn't believe that the article was really that short.
Watched the video genuinely interested thinking he was somehow going to put 1.5 TB RAM into Mac Mini.. until he said 32GB at 3:11.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#47While each node of a server farm of these can be relatively cheap by enterprise budgets, an entire cluster of these machines is not (at $200k+ that’s the budget for an FTE, after all). Which is why I’d want to check if an Optane drive could be a strong consideration to shave some costs off for a reasonable trade-off in performance. Not sure if 10+ TB of Optane is viable enough to be at least an order of magnitude lar…
Last I checked Optane still cost more than RAM up to about 2 TB/server (dimms or drives). It does scale significantly higher in drive form though.
Optane is at $5k for a 1.5 TB drive while the OP quotes $18k for 1.5 TB of RAM. https://www.intel.com/content/www/us/en/products/memory-stor...
Being able to reach 12 TB+ with something like Optane is much more likely than with RDIMMs though, and memory latencies would probably get insane enough that Optane would start looking viable anyway.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#48I just want to know why anyone will personally need 1.5TB of ram in their personal PC today. I'm not saying that 128gb is all we need. I'm sure in the future, we might all have 32TB in our future portal device. But what sort of work load or app could you possibly need 1.5TB of ram for?
On my personal desktop right now. I have 20gb of ram and over 250tabs open on Firefox, spotify, VCode, Postgresql, pgadmin, multiple evice & fbreaders, rabbitMQ, some nodejs servers, 2 linux containers, 1 docker container, mysql server, 10+ xterm sessions, a few screen sessions and I'm using 14Gb.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#49I just want to know why anyone will personally need 1.5TB of ram in their personal PC today. I'm not saying that 128gb is all we need. I'm sure in the future, we might all have 32TB in our future portal device. But what sort of work load or app could you possibly need 1.5TB of ram for? On my personal desktop right now. I have 20gb of ram and over 250tabs open on Firefox, spotify, VCode, Postgresql, pgadmin, multiple…
> I just want to know why anyone will personally need 1.5TB of ram in their personal PC today.
Then you can get rid of all disk reads for normal operations. I imagine gamers would absolutely love it, particularly if creating and populating a ramdisk were made really simple.
Re: Want 1.5TB of RAM in Your PC? It Will Cost You
#50If you're an enterprise that needs a single CPU server with 1.5TB of RAM (to run SAP HANA or some other in-memory DB most likely) then the RAM cost, or really the entire hardware cost, is probably the smallest line item in the entire business case, more or less a rounding error. The author seems to be approaching this from the standpoint of someone building a home rig for some reason.
Big memory PC servers [1] were at around 6 TB 4 years ago with 64 GB DIMMMS [2], 1.5 TB is not a lot today for a server.
[1] conventional single motherboard designs that is, larger of the top500 machines seems to be at the single petabytes now