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Re: [TEKNIK] Skal jeg være skuffet over m in harddisk?



Den 28-01-2011 11:30, Kaare Rasmussen skrev:
> Hej
> 
> Ifølge specs på min fine nye HP ProBook 4720 er harddisken (En Toshiba MK 
> 5056GS) 
> 
> - 7200 rpm
> - Serial ATA-300
> 
> Hvilket lyder fint nok. Hvis jeg prøver

det var jo ikke mange "specs" du har gravet på disken

http://sdd.toshiba.com/main.aspx?Path=StorageSolutions/PCNotebookHardDrives/MKxx56GSYSeries/MKxx56GSYSpecifications
toshiba har dog ikke meget mere at byde på:  avg seek 12ms, 16Mbyte buffer


http://www.tomshardware.com/reviews/laptop-notebook-hard-drive,2548-3.html
http://www.tomshardware.com/reviews/laptop-notebook-hard-drive,2548-5.html

Syntes at indikere at det burde ligge med min, avg, max på hhv 50, 80 og 107 Mb/s


> hdparm -tT /dev/sda1 
> 
> får jeg
> 
> /dev/sda1:
>  Timing cached reads:   5098 MB in  2.00 seconds = 2549.73 MB/sec
>  Timing buffered disk reads:   92 MB in  3.07 seconds =  29.96 MB/sec
> 
> Er de tal i orden for den disk? Er der bedre måder at teste disken på? 

Noget i underkanten for transfer fra disk, dog ganske hurtigt til cache ...
du har ikke noget der kører samtidig på disken og blander sig med testen?

eller måske SATA driver ikke er optimal i linux ?
(måske ny hardware? til linux)

Min samsung netbook (SAMSUNG HM250HI) har forrest på disken sda :
 Timing cached reads:   1482 MB in  2.00 seconds = 741.91 MB/sec
 Timing buffered disk reads:  244 MB in  3.01 seconds =  81.05 MB/se

og inderst på sidste partition  sda8:
 Timing cached reads:   1528 MB in  2.00 seconds = 765.16 MB/sec
 Timing buffered disk reads:  162 MB in  3.00 seconds =  53.98 MB/sec

.... diske er jo hurtigst til at læse yderst cylindre

Men mine tal er ikke helt ved siden af dem i Tom's hardware test for max værdier.






 
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