utils/vmbox/guest
Krzysztof kuhy Rudnicki d531b733b8
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vmbox: single-stream pacman downloads, slirp stalls concurrent TCP
QEMU user-mode networking (libslirp 4.9.4 / qemu 11.1.1) freezes 2-4 of 5
concurrent 60 MB streams at ~10 MB until they time out, while one stream
does 45 MB/s. pacman's ParallelDownloads = 5 hit this on every guest
upgrade: a 90-package -Syu crawled at "500 KB/s" for minutes and then
finished in 12 s once set to 1. Window scaling and rmem do not help; a
tap/bridge NIC would but needs root, which vmbox avoids by design.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SS8M5wk88nJTXxDWz61KKk
2026-09-14 22:14:42 +02:00
..
desktop-lightdm.sh vmbox: vm lightdm and vm shim — the host's login topology and fake hardware 2026-09-13 10:51:10 +02:00
dummy-creds.sh vmbox: disposable Arch VM sandbox for destructive system tests 2026-08-22 20:47:56 +02:00
provision-desktop.sh vmbox: vm lightdm and vm shim — the host's login topology and fake hardware 2026-09-13 10:51:10 +02:00
provision.sh vmbox: single-stream pacman downloads, slirp stalls concurrent TCP 2026-09-14 22:14:42 +02:00
shim.sh vmbox: vm lightdm and vm shim — the host's login topology and fake hardware 2026-09-13 10:51:10 +02:00
vmbox-x11.sh vmbox: vm lightdm and vm shim — the host's login topology and fake hardware 2026-09-13 10:51:10 +02:00