Is it normal to have high hdd load

[pavicj]

Is it normal to have high hdd load when you start downloading a large fille for a few minutes(when is dowloaded 0,5%the usage ends) and the pc works slowly(opening other programs)?and after few minutes everithing is normal. i use the latest stable utorrent version

my pc CPU: FX 8320

CPU Cooler: ZALMAN CNPS10X OPTIMA
MBO: ASUS M5A97 R2.0
RAM: TRANSCEND 2X4 GB 1600 MHZ (8GB)
HDD: WD BLUE 1TB SATA 3
GPU: MSI GTX 760 2GB TF IV GAMING OC 
PSU: FORTRON FSP RAIDER 550W 80+ SILVER 
CASE: ZALMAN Z3 PLUS ATX USB 3.0

I also tested on my other pc and the same thing happens

[Firon]

Yes. It has to allocate the file, which means writing out zeroes to the file at full speed.

 

Hard drives are slow. No way around it.

[rafi]

Even when you have diskio.no_zero - true (=the default as admin)?

[pavicj]

Yes. The same situation is on my other 2 pc

[rafi]

Try with my settings...

[pavicj]

Same. Like i said when the download goes around 0.5-0.7% the usage goes back to normal. and thats so on all my pc. is that normal or  it is a bug?