https://www.pistack.xyz/tags/gem5/ Recent content in Gem5 on Pi Stack Hugo en-us Wed, 23 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-23-firmware-emulation-renode-qemu-gem5-comparison/ Wed, 23 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-23-firmware-emulation-renode-qemu-gem5-comparison/ <p>The weakest link in most embedded teams is not the compiler or the kernel — it is the physical board sitting on one engineer&rsquo;s desk. One dev kit, one person flashing it, and a regression suite that only runs when somebody remembers to plug it in. Emulation fixes that, but the three obvious choices are not interchangeable: QEMU (13,753 GitHub stars) emulates fast enough to run a full Linux userspace, Renode (2,924 stars) models multi-node boards deterministically for CI, and gem5 (2,827 stars) trades speed for architectural fidelity you can publish papers about.</p>