Hi Linux Gurus,
I have problem while writing in to the Hard Disk. I want to write 10 GB of data in 15 MB File each. Totally I will be writing almost 1000 different files in to Hard Disk. In C Program using write function,I will write in a continuous for loop.I have not given any time delay between successive write operation because of specification restriction.If I Measure the Data rate at which it writes in to hard disk, Initially I'm getting almost 500-600 Mega Bytes Per Second (MBPS). But Once ~ 3GB Data is written , data rate started Flutuating. It goes even 4 MBPS in worse case and picking up to 500 MBPS. But I could not get the constant rate, what I'm getting initially.I think some buffer or cache is involved . If so how to fine tune that.But I'm not sure of that.

Any body have faced these problem ? Or Any Suspected solution ?

Thanks,
Sankar