nx_uiq_perf.nx

buildroot/runtime/_hdl_build/nx_uiq_perf.nx

7273 B157 linesdepth 6pulls 7 transitivereach 1 importersview sourcekind tooltopic uiq

docs dependencies structs consts functions

about

nx_uiq_perf.nx -- CLI: DETERMINISTIC Core-Web-Vitals STATIC predictor (the quantitative guardrail). Computes, from a page's source, the render-path costs that CWV field metrics punish -- WITHOUT a render: * render-blocking external stylesheets (<link rel=stylesheet>, not preload) -> delays FCP/LCP * render-blocking scripts (<script src> without async/defer) -> blocks parse, hurts INP/TBT * unsized media (<img>/<video> missing width or height) -> CLS risk (>0.1 fails) * page source weight (bytes) -> transfer proxy Reuses the nx_uiq_* family lib (DRY: io + syscalls) -- the second consumer of nx_uiq_color, growing the family. usage: nx_uiq_perf --kat | <html-file-path> -> JSON {bytes,blocking_css,blocking_js,unsized_media,issues,verdict} HONEST ENVELOPE: STATIC predictors of LCP<=2.5s / INP<=200ms / CLS<=0.1 (web.dev/vitals, p75). Measured LCP/INP/CLS + Speed Index need a real render + field RUM (browser-lane / CDP). This flags the source-visible causes; a PASS here is necessary, not sufficient. license_tier: ORIGINAL expect_exit: 0

dependencies 1 imports · 1 importers

imports: nx_uiq_color.nx

imported by: nx_uiq_perf_gate.nx

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

structs

none

consts

13	const K_MAGIC_2097152: i64 = 2097152

functions

16	func perf_has_in(buf: u8, a: i64, b: i64, pat: u8) -> i64 called by 3: perf_unsized_img perf_blocking_js perf_blocking_css
29	func perf_tagend(buf: *u8, n: i64, off: i64) -> i64 called by 3: perf_unsized_img perf_blocking_js perf_blocking_css
35	func perf_unsized_img(buf: *u8, n: i64) -> i64 called by 2: perf_audit uiq_perf_selftest calls 2: perf_tagend perf_has_in
52	func perf_blocking_js(buf: *u8, n: i64) -> i64 called by 2: perf_audit uiq_perf_selftest calls 2: perf_tagend perf_has_in
71	func perf_blocking_css(buf: *u8, n: i64) -> i64 called by 2: perf_audit uiq_perf_selftest calls 2: perf_tagend perf_has_in
88	func perf_audit(buf: *u8, n: i64, emit: i64) -> i64 called by 3: uiq_perf_selftest main main calls 5: perf_blocking_css perf_blocking_js perf_unsized_img uiq_w uiq_pn
107	func uiq_perf_selftest() -> i64 called by 2: main main calls 4: perf_blocking_css perf_blocking_js perf_unsized_img perf_audit
128	func perf_slurp(path: u8, buf: u8, cap: i64) -> i64 called by 1: main calls 1: sys_read
138	func main(argc: i64, argv: *i64) -> i64 calls 5: uiq_w uiq_perf_selftest uiq_pn perf_slurp perf_audit