01 July 2014. In this article we will describe some simple hard drive speed tests you can perform using your Linux system and command line tool hdparm. hdparm tool is an easy to use tool to quickly asses your hard drive's speed. When performing speed tests hdparm disregards files system currently in use as it writes to a raw device. The actual real read/write speed of your hard drive will be slightly slower and dependent on file system in use. In any case the hdparm should provide you with a solid overview of your hard drive's speed.
Fleas can indeed be the cause of bald patches in a cat's fur, as their biting activity can be relentless. A cat's constant discomfort and associated licking, chewing and tugging on her coat may cause sores and conspicuous hair loss.
When you look closely at a cat who's been infested, fleas will present as jumpy black dots and leave a trail of black dirt. Lice, on the other hand, are white, and it's usually the eggs -- sticky white dots stuck to the hair near the skin -- that can be spotted more easily. Symptoms and Diagnosis. If your cat has lice, he might not seem too agitated, so it can be hard to diagnose the problem. In general, fleas make cats itchier and more uncomfortable than lice do. A heavy lice infestation could lead to a scruffy, unkempt look, and excessive scratching can lead to raw or bald patches.