Very Slow Disk Writes when Writing Large Data Blocks
remmm
remmmav at gmail.com
Tue Jun 20 17:47:01 EDT 2017
> 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
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