Very Slow Disk Writes when Writing Large Data Blocks

[remmm]

> You'll only reach those numbers in the ideal situation. Is there just one
> program doing this disk i/o, sequentially, from a single thread?

The IO is sequential write of a stream of very large blocks of data onto a drive that is only say 30% full.  So yes you should be able to reach 120 mbytes per second and you do on some systems.  It's just that other systems including my primary system are a factor 7 to 10 slower for the same thing.

> Other than that the only other thing I can think of is interference of
> other programs on the system, such as malware protection or anti-virus 
> tooling that is trying to scan your big files at the same time.  
> That should be visible in Window's resource monitor tool.
IT has tried totally new image -- similar results.  But yes -- normally it's a corporate system with all the security bloatware.  Again, we have examples of systems with all the bloatware that work... so odd.

> Post it somewhere?
I'll look into putting the test kit on google drive.

Thanks,
Rob