The UNIX and Linux Forums  

Go Back   The UNIX and Linux Forums > Special Forums > Hardware > Filesystems, Disks and Memory
.
google unix.com



Filesystems, Disks and Memory Discuss NAS, SAN, RAID, Robotic Libraries, backup devices, RAM, DRAM, SCSI, IDE, EIDE topics here.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread Thread Starter Forum Replies Last Post
The "PS" command was displaying*terminals named as "SYSCON" kiranjose85 UNIX for Advanced & Expert Users 1 11-28-2008 07:53 AM
Equivalent of ftp's "quot" command in SFTP jrobins UNIX for Dummies Questions & Answers 1 10-04-2008 01:04 PM
"find command" to find the files in the current directories but not in the "subdir" swamymns Shell Programming and Scripting 9 07-22-2008 12:23 PM
Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`" Lokesha UNIX for Dummies Questions & Answers 4 12-20-2007 01:52 AM
Unix "at" / "Cron" Command New Problem...Need help Mohanraj UNIX for Dummies Questions & Answers 3 01-26-2006 08:08 PM

 
English Japanese Spanish French German Portuguese Italian Dutch Swedish Russian Norwegian Hungarian Hebrew Danish Bulgarian Greek Powered by Powered by Google
 
LinkBack Thread Tools Search this Thread Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #1 (permalink)  
Old 03-05-2009
amio amio is offline
Registered User
  
 

Join Date: Feb 2009
Posts: 24
SD Card Throughput exceeds - On using "dd" command

Hi All,
Am using dd command to find throughput of my Normal speed SD card.
After mounting the sd card, i run,

Code:
time dd if=/dev/zero of=/mnt/sdcard/Myfile.txt bs=512
count=20480;umount /mnt/sdcard;
20480+0 records in
20480+0 records out
10485760 bytes (10 MB) copied, 0.0658825 s, 159 MB/s

real    0m0.097s
user    0m0.013s
sys     0m0.055s
But the throughput shown(159 MB/s) exceeds the normal speed of SD specification (25MB/sec).

Could you please comment on this??

Thanks,
Amio
 

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 01:26 PM.


Powered by: vBulletin, Copyright ©2000 - 2006, Jelsoft Enterprises Limited. Language Translations Powered by .
vBCredits v1.4 Copyright ©2007 - 2008, PixelFX Studios
The UNIX and Linux Forums Content Copyright ©1993-2009. All Rights Reserved.Ad Management by RedTyger

Content Relevant URLs by vBSEO 3.2.0