Why Is My Computer Slowing Down?

[Wirezfree]

Hi,

Follow avj's recommendation to see if your disk is "SMART"

A few additional things:

To check for bad disk blocks:

Code:

sudo badblocks -v /dev/sdx

where x is your disk(s) , like:

Code:

dave@asus-mini-1:~$ sudo badblocks -v /dev/sda
[sudo] password for dave:
Checking blocks 0 to 125034839
Checking for bad blocks (read-only test): done                                                 
Pass completed, 0 bad blocks found. (0/0/0 errors)

Can take some time depending size/type of disk

To check basic disk access/speed:

Code:

sudo hdparm -t --direct /dev/sdx

where x is your disk(s) , like:

Code:

dave@asus-mini-1:~$ sudo hdparm -t --direct /dev/sda
/dev/sda:
Timing O_DIRECT disk reads: 1530 MB in  3.00 seconds = 509.42 MB/sec

dave@asus-mini-1:~$ sudo hdparm -t --direct /dev/sdb
/dev/sdb:
Timing O_DIRECT disk reads: 332 MB in  3.02 seconds = 110.01 MB/sec

Regarding defrag, this is hotly debated, but Linux "does" fragment,
BUT, the impact on day to day typical users is very minimal.
In high end servers/transactional systems, yes it is very important.

If you want to defrag..??

Code:

sudo e4defrag -v /<location>

where <location> is your disk partition(s) , like:

Code:

sudo e4defrag -v /

or

Code:

sudo e4defrag -v /home

Finally,
Menu > System > Resource Usage
Is there anything showing that seems to be "hogging" CPU/Memory.?