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Improve Zed's startup time - #65170
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Read the real UID with getuid() instead of enumerating processes. Keep the channel offsets, UID wrapping, and handshake unchanged. Measurements (warm macOS launches): - Time to presentation: median 525 ms -> 479 ms over 30 paired launches (release-fast).
Skip redundant settings recomputation, migration formatting, and colour-scale construction. Request a redraw of hidden macOS windows before revealing them. Measurements (warm macOS launches): - Startup work, time to selected presentation: paired median reductions of 7.5 ms and 10.7 ms in two runs of 30 pairs. - Window reveal, time to first captured text: paired median reduction of 18.4 ms over 30 pairs.
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…es#65206) This PR makes Cargo happy, which keeps wanting to remove the redundant nix version qualifier from Cargo.lock introduced in zed-industries#65170. Release Notes: - N/A
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First commit:
Avoid process enumeration during macOS startup
Read the real UID with getuid() instead of enumerating processes.
Keep the channel offsets, UID wrapping, and handshake unchanged.
Measurements (warm macOS launches):
Second commit:
Reduce startup work and redraw before window reveal
Skip redundant settings recomputation, migration formatting, and colour-scale construction.
Request a redraw of hidden macOS windows before revealing them.
Measurements (warm macOS launches):
Release Notes: