All about laptops and netbook!
speed
HowTo: Measuring hard disk performance with linux and ‘hdparm’
Nov 5th
Measuring sequential disk performance with linux is easy – most distros (like ubuntu) come with a tool called hdparm , that is mainly used for tuning and optimizing hard disk parameters, but luckily it also includes simple benchmark functionality – for example the following command sudo hdparm -t /dev/sda gives me the following output: /dev/hda: Timing buffered disk reads: 176 MB in 3.01 seconds = 58.55 MB/sec Of course you need to substitute /dev/sda with the name of your raw disk device (for example, it might be /dev/hda for non-SATA disks) . Its impossible to get higher transfer rates that that from your disk. Hdparm reads at the very start of the disk for these tests (which is the fastest area of the whole harddisk) and using optimal access pattern
Read more:
HowTo: Measuring hard disk performance with linux and ‘hdparm’
HowTo: Add 3G/HSDPA functionality to your eeePC 1000H
Nov 5th
During the last few months, Asus has started selling the “eeePC 1000H GO” with internal 3G/HSDPA card for easy everywhere connectivity. So far so good, but what about all those thousands of customers that already bought an eeePC 1000H before? Are they doomed to use one of those ugly external USB 3G modems – a threat to your eeePCs health if you drop it accidentally and the USB stick destroys the USB port it was sticking in (if not even more)…
Excerpt from:
HowTo: Add 3G/HSDPA functionality to your eeePC 1000H
HowTo: "Qualcomm 3G ICON 210" and Ubuntu
Nov 5th
Although generally speaking I’m all pro linux and use it whereever possible – and consider it the best OS for networking encountered by me so far – I was not able to make my internal 3G modem work properly with Ubuntu yet. Of course I managed to have it load the right device drivers and I’m able to establish connections and to surf the internet – but unlike windows, ubuntu refuses to crank up the speed to HSDPA, and despite my patching (and recompiling) of the “usbserial.ko” and “sierra.ko” driver modules I was only able to get a downlink speed of 800KBit/sec at most. The same modem with WindowsXP though achieved between 2.2 and 2.8 MBit/s at the same daytime, causing me quite some frustration (I had bought the modem card because it was claimed as being fully compatible with linux, even with linux drivers supplied by manufacturer, mind you) and I started using WinXP more frequently again due to this issue.
The rest is here:
HowTo: "Qualcomm 3G ICON 210" and Ubuntu
Recent Comments