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.
One possibility is contact dermatitis -- an allergic reaction from something your cat has rubbed against. If the hair loss is limited to the lower legs, for example, it could be a reaction to a new rug. You may have to do some detective work to figure out the cause, but once you remove it, the hair should grow back. Your vet may prescribe a hydrocortisone spray to stop the cat from scratching. Alopecia can also signal a more serious problem, such as a hormone imbalance. Cats with either hypo- or hyperthyroidism (an under- or over-active thyroid) may experience patchy hair loss, and an excess of the hormone cortisol can cause thinning hair in a symmetrical pattern on your cat's trunk. These conditions must be diagnosed with a blood test.