nixos-config/modules/home
Sridhar Ratnakumar b4a60aaf3a
ralph(eval): reduce Nix eval time for pureintent + zest (#120)
* ralph(eval): baseline + benchmark harness

pureintent cpuTime 23.17s, zest cpuTime 14.93s (median of 5).
Methodology: NIX_SHOW_STATS cpuTime, eval-cache off, warm fetcher cache.

* ralph(eval) cycle 1: disable NixOS options manual on pureintent

documentation.nixos.enable = false. Generating the NixOS manual evaluates
every option's doc string. nrThunks 20,400,114 -> 19,201,996 (-5.9%),
nrFunctionCalls -6.2%, nrPrimOpCalls -7.5%. Package man pages unaffected.

Metric pivoted to deterministic NIX_SHOW_STATS counters: cpuTime is unusable
on this thermally-throttling machine (same eval = 11s..21s).

* ralph(eval): switch home target zest -> sincereintent (per request)

sincereintent home config baseline: nrThunks 5,323,428 / calls 3,227,404 /
primops 1,565,120 (deterministic).

* ralph(eval) cycle 2: disable home-manager options manpage

manual.manpages.enable = false in shared modules/home/default.nix. HM builds
home-configuration.nix(5) by default, evaluating every HM option's doc string.
sincereintent nrThunks 5,323,428 -> 3,551,679 (-33.3%), calls -35%, primops -39%.

* ralph(eval): record cycle-2 pureintent gain (shared HM module)

pureintent nrThunks 19,201,996 -> 17,431,437 (-9.2%); cycle-2's
manual.manpages.enable=false also feeds pureintent's embedded home-manager
via modules/nixos/default.nix. Total pureintent -14.6% from baseline.

* ralph(eval) cycle 3: profiling + dead-ends (no behaviour-preserving win)

Confirmed: nixpkgs single-instantiation (no 2x trap), unused inputs are lazy
(no counter impact), escapeShellArg hotspot is HM file-linking + /etc (not
patchable here). Remaining eval cost is feature-bound (embedded HM, vira/kolu,
google-cloud-sdk/pandoc/omnix).

* ralph(eval) cycle 4: drop heavy home.packages (yt-dlp/lima/omnix/pandoc/gcloud)

User-approved behaviour change. Removed from shared modules/home/cli/terminal.nix
(kept hledger). pureintent nrThunks 17,431,437 -> 16,989,720 (-2.5%),
sincereintent 3,551,679 -> 2,757,201 (-22.4%). Totals from baseline:
pureintent -16.7%, sincereintent -48.2%.

* ralph(eval): finalize report (final measurement, key findings, cost breakdown)
2026-05-29 07:19:48 -04:00
..
claude-code stop fucking with /nix, retard 2026-05-26 09:42:41 -04:00
cli ralph(eval): reduce Nix eval time for pureintent + zest (#120) 2026-05-29 07:19:48 -04:00
editors fix warn 2026-05-20 08:06:46 -04:00
gui LiteLLM + Claude Code configuration (#101) 2025-11-25 10:38:19 -05:00
nix gc 2026-03-27 21:00:08 -04:00
services imako-- 2026-05-23 10:27:35 -04:00
work use vanjaram 2026-05-13 16:11:29 -04:00
agenix.nix agenix: fix restart loop 2025-12-04 13:50:42 -05:00
darwin-only.nix drop nu 2026-02-14 19:33:12 -05:00
default.nix ralph(eval): reduce Nix eval time for pureintent + zest (#120) 2026-05-29 07:19:48 -04:00
linux-only.nix use native claude code 2026-02-13 19:33:02 -05:00