How to determine the used size of device associated's buffer

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Posted by dubbaluga on Super User See other posts from Super User or by dubbaluga
Published on 2011-01-06T19:30:28Z Indexed on 2011/01/06 19:56 UTC
Read the original article Hit count: 373

Filed under:
|
|

Hi,

when mounting a device without the "sync" option, e. g. by invoking the following:

mount -o async /dev/sdc1 /mnt

a buffer is associated with a device to optimize (speed) read/write operations. Is there a way to determine the size of this buffer? Another question that comes into my mind is, if it's possible to find out how much of it is used currently. This can be interesting to determine the time it would take to "sync" or "umount" slow devices, such as flash-based media.

Thanks in advance for your answers, Rainer

© Super User or respective owner

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Related posts about mount

  • 12.10 update breaks NFS mount

    as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
    I've just upgraded to the latest 12.10 beta. Rebooted twice. The problem is with the NFS folders not mounting, here's a verbose log. # mount -v myserver:/nfs_shared/tools /tools/ mount: no type was given - I'll assume nfs because of the colon mount.nfs: timeout set for Mon Oct 1 11:42:28 2012 mount… >>> More

  • Mount SMB / AFP 13.10

    as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
    I cannot seem to get Ubuntu to mount a mac share via SMB or AFP. I've tried the following... AFP: apt-get install afpfs-ng-utils mount_afp afp://user:password@localip/share /mnt/share Error given: "Could not connect, never got a reponse to getstatus, Connection timed out". Which is odd as I can… >>> More

  • Mount Return Code for CIFS mount

    as seen on Server Fault - Search for 'Server Fault'
    When I run the following command (as root or via sudo) from a bash script I get an exit status (or return code in mount man page parlance) of 1: mount -v -t cifs //nasbox/volume /tmpdir/ --verbose -o credentials=/root/cifsid & /tmp/mylog It outputs the following into the myflog file: parsing… >>> More

  • Disable raid member check upon mount to mount damaged nvidia raid1 member

    as seen on Server Fault - Search for 'Server Fault'
    Hi, A friend of mine destroyed his Nvidia RAID1 array somehow and in trying to fix it, he ended up with a non-working array. Because of the RAID metadata, the actual disk data was stored at an offset from the beginning. I was able to identify this offset with dd and a hexeditor and then I used losetup… >>> More

  • Network shares do not mount.

    as seen on Super User - Search for 'Super User'
    My network shares were mounting fine yesterday.. suddenly they are not. They were mounting fine for the last two weeks or however long since I added them. When I run sudo mount -a I get the following error: topsy@monolyth:~$ sudo mount -a mount error(12): Cannot allocate memory Refer to the mount… >>> More

Related posts about devices

Categories cloud

.NET ASP.NET iphone linux python Windows mysql android sql windows-7 html c ruby-on-rails css objective-c ubuntu networking sql-server wpf asp.net-mvc ruby database Xml apache AJAX osx security regex django Performance 12.04 windows-xp mac web-development iphone-sdk vb.net Silverlight apache2 flash server perl best-practices email installation eclipse visual-studio algorithm windows-server-2008 winforms wcf firefox bash dns /Oracle