Re: [gentoo-user] Sata hard drive speed question

[taii...@gmx.com]

Here are some theories.

* You gotta properly align the sectors for 4K advanced format
* USB doesn't have NCQ which really slows things down.
* Copying many small files is almost always slow since they are located
on various parts of the drive not in a contiguous block (again see NCQ)
* System is set to use IDE not AHCI thus no NCQ etc
* You are using a secondary SATA chip such as the terrible ones from
JMicron or what not instead of what is on your systems northbridge or a
quality PCI-e HBA.