# ntsync

11 Hacker News commenters recommended ntsync and 3 criticized it, November 2025 to November 2026. It was recommended in 3 of 13 months.

**Verdict:** Linux kernel driver that lets Wine and Proton skip user-space emulation of Windows sync calls. Critics find the speed gains mild, usually a few percent.

## Why people recommend it

- Better than esync, a win for Wine (3 comments): "That said, Wine+ntsync is still a win, just not a 8x improvement" ([source](https://news.ycombinator.com/item?id=47507966)) "It works better than esync, especially for Cyberpunk 2077." ([source](https://news.ycombinator.com/item?id=46557710)) "Wine+ntsync is still a win, just not a 8x improvement" ([source](https://news.ycombinator.com/item?id=47508382))
- Correct, clean design matching Windows (2 comments): "ntsync allows efficient and correct synchronization usage that matches logic of Windows" ([source](https://news.ycombinator.com/item?id=46673583)) "it's more correct and clean" ([source](https://news.ycombinator.com/item?id=48127689))

## What people warn about

- Little or no measurable speedup (2 comments): "NTSYNC is basically no benefit" ([source](https://news.ycombinator.com/item?id=48130858)) "I have yet to see it make an improvement of any kind." ([source](https://news.ycombinator.com/item?id=46556828))

## Cite as

Hacker Approved, "ntsync", https://hackerapproved.com/p/ntsync/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).