Digging into a QEMU problem of slow data copying
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HN comment orderFor those who haven't used patches via email before and want to contribute to Linux/qemu/etc that use that, there is a neat site about how to set it up and do it: https://git-send-email.io/
I've recently deep-dived into QEMU performance especially in order to cut down boot/bootstrapping times for quickly running tests and I'd like to share some tricks: - Templating: https://qemu.readthedocs.io/en/v9.1.0/system/vm-templating.h... - virtio-fs: https://virtio-fs.gitlab.io/ - Overlay storage images: https://wiki.archlinux.org/title/QEMU#Overlay_storage_images
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
- Breakout years
- 2
- Total points
- 343
- Total comments
- 53
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking
Every submission
| Date | Title as submitted | By | Points | Comments |
|---|---|---|---|---|
| 2022-10-13 | Digging into a QEMU problem of slow data copyingFirst breakout · Best thread | todsacerdoti | 190 | 31 |
| 2024-06-15 | Make your QEMU 9p server 10 times faster with this one weird trick | fanf2 | 3 | 0 |
| 2024-12-17 | Make your QEMU faster (2022)Latest 20+ point return | tripdout | 150 | 22 |