On Wed, 27 May 2015, Michael Schnell wrote:
On 05/26/2015 06:25 PM, Jürgen Hestermann wrote:
If you copy thousands of files with only a few bytes each
then it may become very noticable, what "else" is done
(in additon to the pure OS copy of the files).
I don't think so. Opening the file is a tedious task for the OS. So I suppose
the User-program/OS relation is not that different regarding the file size.
Of course it is.
If you write to a file of 1Gb in blocks of 256 bytes, or you write to a 1Gb file in blocks of 1Mb,
you will surely see the difference. A kernel call always introduces overhead.
Michael.
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