On 07/13/15 19:38, jd1008 wrote: > On 07/13/2015 05:15 PM, Patrick O'Callaghan wrote: <<>> >> IIRC USB drives are not DMA driven, i.e. each filesystem block written >> to the drive has to be pushed over the serial bus and handled by the >> CPU. Also, check if the drive is mounted with the 'flush' option, which >> sacrifices speed for greater integrity (i.e. less damage of the user >> pulls the drive without ejecting it). >> >> poc > Good tip. I will check next time when I rerun the test. > i agree with 'poc' 100% with both of his statements. also, i think you might want to rethink your thinking. you say you are connecting to a usb2 port and device is a usb3. near all reading of spec for usb3 devices that will work on usb2 have a statement that thru put speeds will be less if used on usb2. more for thought, is tar building finale file in memory, /tmp, or on the usb3 drive? -- peace out. -+- If Bill Gates got a dime for every time Windows crashes... ...oh, wait. He does. THAT explains it! -+- in a world with out fences, who needs gates. -+- CentOS GNU/Linux 6.6 tc,hago. g . -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
