How can I write a program which can test throughput of disk in Windows systems using c++?
What's the mainly steps and APIs that I can use to programming?
A:
In outline:
- write a known (large) amount of data to disk ( see write() )
- start clock (see time() or clock() )
- read data from disk (see read() )
- stop clock (see above)
- report results (see cout)
anon
2009-03-31 08:32:53
A:
One open-source benchmark is bonnie, which mostly uses the standard C API. You'll need to change some of the timing functions to suit Windows.
Pete Kirkham
2009-03-31 08:58:24
Hi Pete,"I believe thatmemory is in short supply, so caches max out, thusmany I/O operations end up really doing I/O"what does this sentence mean in the bonnie website?
Jinx
2009-03-31 13:56:33
If you have a a 1TB database on a machine with 16GB RAM, what's going to matter is how fast the disk can seek/read rather than how good the OS is at caching, because the caches will get exhausted quickly.
Pete Kirkham
2009-03-31 14:34:19