When debugging and optimizing C/C++ programs, you need to see how the compiler translates your source code into assembly. A mixed source and assembly listing lets you trace exactly what machine instructions correspond to each line of your source. Using objdump (Recommended Modern Approach) The most straightforward method is to compile with debugging symbols and…
OCaml is a practical functional language with strong static typing and pattern matching. If you’re coming from systems programming or looking to add functional paradigms to your toolkit, these resources will accelerate your learning. Primary Learning Resources Real World OCaml by Yaron Minsky, Anil Madhavapeddy, and Jason Hickey remains the standard reference for modern OCaml…
Converting strings to integers is a fundamental operation in C++, but the method you choose affects both code clarity and performance. Here are the four main approaches, ranked by use case. std::stoi() — The Default Choice std::stoi() is the standard C++11 method for most situations. It’s exception-based, handles whitespace automatically, and works with custom number…
Xen remains relevant for certain production workloads, particularly in cloud infrastructure (AWS EC2, Citrix Hypervisor) and enterprise environments requiring strong VM isolation. However, most Linux distributions now default to KVM for virtualization due to simpler setup and broader ecosystem support. If you’re evaluating hypervisors, consider KVM or container-based solutions like Podman and Kubernetes for new…
ns (Network Simulator) is a discrete-event simulator used primarily for research and educational purposes in networking. The two major versions—ns-2 and ns-3—are substantially different in architecture and usage patterns. This guide covers installation on current Fedora systems. Installing ns-2 on Fedora Note: ns-2 is legacy software and requires significant compatibility workarounds on modern systems. Consider…
Xen remains a production-grade hypervisor used in enterprise environments (AWS EC2, Citrix Hypervisor), though KVM has become the default for most Linux distributions. This guide covers building a stable Xen Dom0 on current Fedora releases using modern kernel sources. Hardware Considerations This guide assumes server-class hardware with: Intel or AMD processor with virtualization extensions (VT-x…
This post documents jailbreaking procedures for legacy iOS devices (iPod Touch, early iPhone) using Spirit—an untethered jailbreak tool from the late 2000s. Modern iOS devices (2010 and later) use entirely different security models and jailbreak methods. This information is preserved for historical reference only and has no practical application to current iOS versions. About Spirit…
Xen remains a production hypervisor for enterprise deployments (AWS EC2, Citrix Hypervisor), though KVM has become the default for most Linux distributions. If you’re deploying Xen in 2026, you’ll likely be working with recent stable releases rather than the legacy versions covered in older guides. This guide covers building a modern Xen Dom0 environment on…
Archived Content (2010): This post describes a research project from 2010. The tools and versions mentioned (Hadoop 0.20, MapReduce Streaming) are historically significant but have been largely superseded by modern distributed build systems like Bazel Remote Execution and cloud-native CI/CD pipelines. mrcc – A Distributed C Compiler System on MapReduce Original Project Date: January 2010…