> 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 -- https://mail.python.org/mailman/listinfo/python-list
