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11 posts
WSL2's lightweight VM claims memory dynamically as Linux processes need it — but historically gave that memory back to Windows only reluctantly. Here's what's actually happening, and what you control via .wslconfig.
A project that runs fine natively feels sluggish the moment it's accessed from /mnt/c inside WSL2 — especially anything touching large numbers of small files. Here's why, and the actual fix.
Task Manager shows vmmem consuming several gigabytes of RAM, even when you're not actively using WSL. Here's how to actually diagnose what's holding that memory, and how to cap it properly.
A frame-perfect run suddenly hitches every time a new visual effect appears on screen. It's not a savestate or performance problem — it's your GPU driver compiling a shader for the first time, mid-frame.
The game runs, but noticeably faster or slower than it should — usually a frame-timing or region mismatch, not a broken core, and quick to isolate once you know where to look.
The game runs and looks fine, but the audio pops, crackles, or stutters. This is almost always an audio buffer or sync problem, not a broken emulator core.
Every emulator has to answer the same question: how do you run code written for one processor on a completely different one? Two fundamentally different answers, and why most serious emulators eventually need both.
Boot times creeping up over time usually trace to a specific, identifiable cause — too many startup programs, a failing drive, or a driver delaying boot — not general 'Windows rot.'
Load average is climbing but top shows plenty of idle CPU. This almost always means processes stuck waiting on I/O, not a CPU problem — here's how to actually find which one.
Task Manager shows disk usage pinned at 100% with no obvious cause. Windows Search's indexer is a frequent culprit — here's how to confirm it and fix it properly.
A practical toolkit for watching CPU, memory, disk, and network usage live — going beyond top to actually find what's causing a resource problem.