My web site server is very slow and I contacted my hosting company. This company ask me to execute this command line:
hdparm -tT /dev/sda
The result is here:
/dev/sda: Timing cached reads: 1112 MB in 2.00 seconds = 555.55 MB/sec Timing buffered disk reads: 4 MB in 4.80 seconds = 854.16 kB/sec
I don't understand what it means, I read the man but can you explain me clearly what this result means.
Thanks a lot.