Romex Software Forum

I assume that cache size depends NOT on a size of the main drive but on the size of the applications u usually run. If you toss Cyberpunk/Diablo III/RDR2/CivVI it's better to have larger drive. If it's office work - 10GB will be enough I would assume. Yes, that is correct. The best indicator in my ...

Another useful tool, which I am the brain behind (but I don't code it) is UltimateDefrag. It lets you sort files by file size so you can have your small files (cause of random I/O) together on your spinner and benefit from a larger block size in PrimoCache where it will cache adjacent small files d...

Here is a file you can download called readfile.exe. It just reads files and is used for testing disk speeds. The original build of this program from http://www.winimage.com/readfile.htm has a bug recursing subdirectories. I had a programmer correct this for me since it is open source. You can get ...

Hi All, I have to restore some older LTO LTFS tapes. However, these have been used by simply copying thousands of small files onto the tapes, which turns out to be extremely inefficient on the restores, especially on Windows 11. We found that realtime security must be switch off in OS, otherwise Win...

.. 1. PrimoCache L1 cache performs 23% faster than Windows cache on reading uncompressed data! .. This image contains details and results of the performance tests and some more discussion below the image. https://disktrix.com/images/compression.jpg .. Hi Rob, are the read times for Windows cache un...

Somebody did recommend to use a cache size that is twice the RAM size. But, why not use a much bigger cache and long latency, if you can afford it and you have got power supply that is as fail-safe as an UPS? I don't who and why one would recommend twice the size of RAM as cache. Thats IMHO nonsens...

Interesting, I haven't really followed any new plotters yet, but to me the original implementation always looked pretty slow and un-optimized, without having really looked at the actual code. All the performance I saw, told me there is plenty of room for optimizations. Anyhow, with nearly all free d...

I have done quite a bunch of Chia plotting recently, lik 80 TBytes of plots so far. Outputting over 50 plots per day. My believe is that PrimoCache will bring you no gain in speed, but a gain in SSD lifetime. I use it only for L1 caching and defer writes to 10 seconds, so multiple writes get combine...

You won't really benefit from caching itself. The cache hit rate when Chia plotting is less than 1% after some more testing here.
However, deferred writes add up significantly and that directly influences the write cycles of the SSD and so its life span.

I see up to 30% deferred writes.

If you have a rough estimate on how much data you touch per day, like newly written data, old read data, then you have an indication of how much you would need to run via SSD without necessarily touching the HDD at all. I tend to use twice the size of that and that keeps even a server cool... You ca...