Performance

As I said here and here, Microsoft Flight Simulator 2020 is beautiful. Been flying non-stop the past few months, to this day I’ve logged 229 hours of game time. Flying virtually made me remember moments and also an opportunity to learn something new. This blog post is about what you get in the game with combinations of CPU’s I’ve tested it on and RTX cards namely 2070 Super and 3080. The combinations are all feeding a 4K60 monitor with HDR turned on. ...

For the past month, I’ve been pleasantly hacking my Cubieboard to try out several different things. This time, I wanna know how performant Cubieboard is. Benchmarks are configured in such a way to replicate a real Web Application. Preparing Here are the specs for my Cubieboard: AllWinner A10 ARM Single Core CPU 1 GB DDR3 @ 480 MHz 5V / 2A = 10 Watts SATA HD - 5400 RPM Cubian r7 - http://cubian.org 2 GB Swapfile (SATA HD) US$ 49 I’ve written a tutorial on how to install Cubian to a SATA HD here. The main reason why I’m doing a SATA HD Install for this is to preserve my micro-SD’s lifetime. We’re gonna be compiling and doing I/O intensive tasks so it’s best to delegate off the micro-SD card. ...

Today was started with a big curiosity towards Urbanesia’s recent performance drop. This week we discovered that although we have completely revamped our codes to hack CI to use MongoDB as its session storage instead of MySQL, we found that Memcache is the bottleneck. When I woke up today, I was devastated to know that it took at minimum 5.7 seconds to load any of our business profiles. So I went hunting for the source of this irritating loading time. The Memcache problem was because our Sofvia server is at its limit, we’ve pushed the CPU utilization to her max and Memcache is simply not getting enough CPU Power. The main cause is putting 2 Memcache instances in Sofvia which in turn made CPU utilizations soar. When Memcache was out of CPU resource, the server was on an endless loop with load averages sky rocketing to > 100. Reference is here. ...