Tag Archives: 30 blogs in 30 days

QoS and SLA Guarantees in the Cloud

Ivan Pepeljnak’s makes an important point in his webinar on Cloud Computing Networking: as a customer, understand the QoS and SLA Guarantees that your public cloud provider offers. Whatever Tenant A does should not impact the performance of Tenant B. At a very minimum, there should be some guarantees on bandwidth, IO operations, and CPU cycles for every tenant. You don’t want to have the noisy neighbor who hogs up resources that leaves you no choice but to reboot your VM with the hope of getting reassigned to a physical server with less load. An AWS Small Instance is an example of an environment where you might encounter this scenario.

Applying Moore’s Law to Cricket Bats

TL; DR – They just follow the laws of Physics.

Moore’s Law states that the number of transistors per integrated circuit will double every two years. In a recent interview with Marketplace, Intel CEO Brian Krzanich, who is the sixth CEO of the company, expressed hope that Moore’s Law would remain alive on the watch of the next couple of CEOs. Currently, Intel can achieve 14 nm manufacturing processes. Krzanich said with the current technology, they can keep Moore’s Law alive for another 6-10 years.

Recently, I’ve been reading up on the science behind cricket bat manufacturing. Cricket has increasingly become a batsman’s game, highlighted not only by higher scores, but by bigger hits (more fours and sixes being hit). There are a few prevalent theories about bat manufacturing techniques improving and bats becoming heavier. A heavier bat can result in the ball being hit farther. However, as described by bat-maker Chris King, “the material and design have been pushed to their limits. Like Formula One cars, they operate at the outer edges of what’s possible.” Instead, the psychology of bat-owners is where the innovation lies. Bats, which have always been made of willow, aren’t necessarily getting heavier, but rather bigger and lighter, to give a batsman the impression that it’s heavier. Variations in the balance and the weight distribution make a huge difference. And that is what fives the batsman the sense of security and confidence to go for bigger hits. As King says, “What we’re up against is the belief that a big bat is more powerful than a bat of the same weight that’s smaller, which it isn’t. That’s against the laws of physics.”

30 Blogs in 30 Days – Let’s Do It!

I decided to jump on the bandwagon of the 30 Blogs in 30 Days challenge. Om Malik, of GigaOm fame, and Greg Ferro of Packet Pushers fame, are already on it. Let’s see if I can produce something original over 140 characters for a month.

For starters, here’s a photo I took yesterday from where I moved two weeks ago – Santa Cruz, California.

Natural Bridges State Beach from West Cliff Drive in Santa Cruz, California
Natural Bridges State Beach from West Cliff Drive in Santa Cruz, California, where I live