Test de vitesse de clé USB :

pour tester mes clés USB j'utilise la mesure de performance avec hdparm les résultats sont ceux de la commande hdparm -Tt /dev/<ma cle usb>

Pour la Clé iMakey LaCIE en forme de clé de 8 Go:

Timing cached reads:   2488 MB in  2.00 seconds = 1245.03 MB/sec
Timing buffered disk reads:   86 MB in  3.01 seconds =  28.57 MB/sec

Pour la Cle Kingston DT Mini slim 8 Go :

Timing cached reads:   2456 MB in  2.00 seconds = 1229.24 MB/sec
Timing buffered disk reads:   62 MB in  3.08 seconds =  20.15 MB/sec

Pour la Cle Kingston DT Mini slim 4 Go :

Timing cached reads:   2494 MB in  2.00 seconds = 1248.07 MB/sec
Timing buffered disk reads:   58 MB in  3.12 seconds =  18.59 MB/sec

Pour la Cle Kingston DataTravel retractable 4 Go :

Timing cached reads:   7640 MB in  1.99 seconds = 3831.48 MB/sec
Timing buffered disk reads:   50 MB in  3.09 seconds =  16.16 MB/sec

Pour la cle Transcend Information, Inc. 8Go :

Timing cached reads:   2450 MB in  2.00 seconds = 1225.83 MB/sec
Timing buffered disk reads:   78 MB in  3.02 seconds =  25.80 MB/sec

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