Linus Torvalds, Geek of the Week. Linus Torvalds is remarkable, not only for being the technical genius who wrote Linux, but for then being able to inspire and lead an enormous team of people to devote their free time to work on the operating system and bring it to maturity.
We sent Richard Morris off to interview Linus, and find out more. Linus Torvalds, an acknowledged godfather of the open-source movement, was just 21 when he changed the world by writing Linux. How 3.6 nearly broke PostgreSQL. By Jonathan CorbetOctober 2, 2012 In mid-September, the 3.6 kernel appeared to be stabilizing nicely.
Most of the known regressions had been fixed, the patch volume was dropping, and Linus was relatively happy. Then Nikolay Ulyanitsky showed up with a problem: the pgbench PostgreSQL benchmark ran 20% slower than under 3.5. The resulting discussion shows just how hard scalability can be on contemporary hardware and how hard scheduling can be in general. Borislav Petkov was able to reproduce the problem; a dozen or so bisection iterations later he narrowed down the problem to this patch, which was duly reverted. Re: 20% performance drop on PostgreSQL 9.2 from kernel 3.5.3 to 3.6-rc5 on AMD chipsets - bisected. What is meant by the terms CPU, Core, Die and Package.