Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:Actually Islam is pro astronomy (Score 1) 137

The Taliban are based more circa-1700s, whereas the "golden age" for the Middle East was closer to 700-1200 AD (http://en.wikipedia.org/wiki/Islamic_Golden_Age) Whenever a group looks backward and tries to be old-fashioned, they never pick a particularly advanced, progressive period. None of the right-wing "return America to how it used to be" folks want the 1960s with hippies, civil rights, and space exploration, even though 1960 is definitely old-fashioned as it was a half-century ago. They rather have the 1980s wall street 'greed is good' or the 1940s 'white man in charge' eras. In essence, the folks who look back always pick a very rigid, uncreative era. The creative don't look back, they just create and build anew.

Comment Re:Speed vs Bandwidth (Score 1) 115

You're forgetting switching latency. A single high-end switch adds 600ns latency, and a single low-end switch adds 200us latency. If you have 20 hops, that's 12us vs. 4ms. And crappy wifi-routers can add 20ms of latency each. So, no, their average speed is not k*c where k is slightly less than one. One crappy wifi-router's latency is equal to light traveling 4,000 miles (more than the distance from NYC to London).

Comment Re:Not so bad to have different systems. (Score 1) 2288

Hey you, my foot is 12 inches long, and I measured my front yard, and it's 3 feet to the curb. And "mile" is latin for 1,000 (same root as millilitre and millennium), and the English mile comes from the Roman "mille passuum" (1,000 paces of a soldier), thanks to the Romans dutifully conquering England.

Comment Re:Not that surprising, actually (Score 4, Informative) 468

Um, people do kernel programming in virtual machines. And there's plenty of debugging tools around VMs. I know, I write kernel modules.

Also, kernels can mask interrupts and ensure a function is run "single threaded" (no context-switching out), which dramatically reduces the complexity. Not every function is set up like that, many are thread-safe, but drivers are usually written to be uninterrupted and access private memory, so they don't worry about interaction with other cpus/cores/kthreads.

Both are hard, kernel programming is hard, and the massive multi-threading in window managers is hard.

Slashdot Top Deals

"Protozoa are small, and bacteria are small, but viruses are smaller than the both put together."

Working...