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Title: Does system memory speed matter for Cryptonight? Post by: Snow_Dog on February 01, 2018, 12:30:09 PM I just purchased a Ryzen 1600 and have a BIOSTAR TB350-BTC motherboard on the way from Newegg and want to try cpu mining (I currently have two GPU rigs and if this does not work out I can use the MB to make a 3rd rig). I can't seem to find a definite answer to whether the type of system ram makes a difference in hashing rates. Will a cheap 4GB DDR4 2400 Kingston stick produce the same results as say a faster dual channel low latency pair?
Title: Re: Does system memory speed matter for Cryptonight? Post by: MagicSmoker on February 01, 2018, 01:38:39 PM My understanding - which has been borne out by testing on 2 different machines - is that the only memory that matters with CPU mining Cryptonight is the L3 cache; the faster it is, and the more of it, the faster Cryptonight can be mined.
FYI, the ideal number of threads for mining Cryptonight is L3 size in MB / 2. For example, the Ryzen 5 1600 has a 16MB L3 cache so the ideal number of threads is 8. Also, avoid the use of Core 0 / Thread 0 if you run Windows 10 and need to use the computer for other things. I highly recommend XMR-Stak in CPU-only mode and posted below is the relevant part of my cpu.txt file that sets up the thread configuration for my Ryzen 5 1600 and which gets around 440 H/s on average with minimal impact to usability: Code: "cpu_threads_conf" : This configuration was figured out with the help of PM conversations between me and fellow user @Set Ready Go. Title: Re: Does system memory speed matter for Cryptonight? Post by: Snow_Dog on February 01, 2018, 02:06:17 PM My understanding - which has been borne out by testing on 2 different machines - is that the only memory that matters with CPU mining Cryptonight is the L3 cache; the faster it is, and the more of it, the faster Cryptonight can be mined. FYI, the ideal number of threads for mining Cryptonight is L3 size in MB / 2. For example, the Ryzen 5 1600 has a 16MB L3 cache so the ideal number of threads is 8. Also, avoid the use of Core 0 / Thread 0 if you run Windows 10 and need to use the computer for other things. I highly recommend XMR-Stak in CPU-only mode and posted below is the relevant part of my cpu.txt file that sets up the thread configuration for my Ryzen 5 1600 and which gets around 440 H/s on average with minimal impact to usability: Code: "cpu_threads_conf" : This configuration was figured out with the help of PM conversations between me and fellow user @Set Ready Go. Thank you for the great information. I was hoping someone would respond who has experience with the Ryzen 5. I was planning on trying it as a dedicated CPU miner to get a benchmark hash rate and then try it with windows and a few GPU's mining something other than Cryptoknight (Not sure how much impact GPU mining will have on CPU mining). I will read up on XMR-Stak as i noticed on monerobenchmarks.info that most of the "good" benchmark entries were using it. |