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Introduction We’re building oso, an open source policy engine for authorization. You can use oso to separate authorization logic from application code by writing policies in our declarative language, called Polar. oso is built to be embedded directly in the application, which means you can pass in application objects,

With the Ruby 3.0 release, there’s been a lot of chatter about concurrency, parallelism, and async IO. For my own reflection, I wanted to write down what that means for performance and capacity/costs of apps, and what would be the impact on the Ruby ecosystem. I will

Introduction I recently analyzed a really cool N-day vulnerability in V8 and wanted to blog about it since I learned a lot while analyzing it. CVE-2020-16040 On the 24th of November, a very interesting V8 commit was made visible as part of Chromium Issue 1150649 (which is still restricted). The

When a program is mostly just accessing memory randomly, a standard cost model is to count the number of distinct random accesses. The general idea is that memory access is much slower than most other computational tasks. Furthermore, the cost model can be extended to count “nearby” memory accesses as

General-purpose processors play important roles in systems based on field-programmable gate arrays (FPGAs). As systems get larger and more complex, processors run many control tasks, like an operating system and a network software stack. Moreover, some systems require processors to run main com-pute kernels, which are impractical to deploy on