Romex Software Forum

yes, we do use the SSD (OCZ RevoDrive 3x2) when printing to tape now, but its annoying (manual) workaround, after all. It would be much more convenient if there is a transparent cache working in the background... Primo Cache's L2 caching (using a specially formatted SSD) looks, on the surface, to b...

However I did notice CPU utilisation was quite high (80% on one core) during the Diskmark tests (except for the final QD32 testing which gave a lower load spread across 4-5 cores). Given we're using different CPU architectures, this might be the underlying cause so I have attached a copy of my Sandr...

When I tested, I left the write defer setting to the default (10 seconds). I did increase it to 20 seconds for subsequent use, but this has had a marginal effect on benchmark results, shown below (I also tried with 1,000 seconds and that gave slightly poorer results). So I don't think write defer se...

Vintagedon, Spent some time with vintage versions of Sandra comparing their memory benchmark results, before getting the latest free/lite version (which sadly, seems to have gone downhill IMHO) from http://www.sisoftware.net//?d=dload&f=sware_dl_3264&l=en - results given below. Another sugge...

The sequential results I see look to be almost 4 times what your results report, which seems a little odd. I presume I have more memory bandwidth available (1600Mhz DDR3, triple channel) but that shouldn't account for a more than 50% improvement. Maybe 64-bit system overheads are an issue here?

Given that 6 (128GB) SSDs are involved, the results there aren't too great (using the motherboard's Intel ICH10 controller - the drives individually can do around 230MB/s sustained read/write but the controller can only handle 3 before performance starts to degrade). Add PrimoCache to that array tho...

Vintagedon, Good to see a well-written article on PrimoCache (though I would suggest any technique involving lots of RAM could hardly be called "cheap"). Your suggestion for cache sizing might benefit from more clarification (do you mean 80% of free memory or 80% of total memory?) and I wo...

PrimoCache allows block sizes up to 512KB - do any of the larger ones allow you to allocate more memory? If not, then you may have encountered an internal limitation. As for suggesting block sizes, the default size could be better chosen and the error message should be more informative (I found it u...

...So having a brute force RAID with like 15+ times the required performance does still not solve the problem of dropped frames due to latencies. As an aside, have you tried using an SSD drive? Their near-zero latency may be more useful in this case than your RAID's throughput, and if you're workin...

Hi Edv,

Try a larger block size for your cache (I've found 64K to be the sweet spot with a 7GB cache, but you may wish to experiment to find the ideal for your system). This reduces the overhead and should allow for a larger cache setting.