nordisk/skade

.nornir/assets/catalog-key-zerocopy.svg

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  <text x="16" y="26" class="hdr">skade catalog table_key — 2 allocs → 1 (byte-identical)</text>

  <text x="16" y="58" class="dim">OLD — format!  (2 allocs + Vec clone)   ~513 ns/op</text>
  <rect class="box old" x="16"  y="70" width="150" height="46"/><text x="26" y="90" class="t">ns.clone()</text><text x="26" y="107" class="dim">Vec&lt;String&gt; copy</text>
  <rect class="box old" x="196" y="70" width="150" height="46"/><text x="206" y="90" class="t">.join(".")</text><text x="206" y="107" class="dim">→ String #1</text>
  <rect class="box old" x="376" y="70" width="180" height="46"/><text x="386" y="90" class="t">format!(cat SEP ns SEP name)</text><text x="386" y="107" class="dim">→ String #2</text>
  <path class="arr" d="M166,93 L196,93"/><path class="arr" d="M346,93 L376,93"/>

  <text x="16" y="168" class="dim">NEW — one pre-sized String, push by ref   ~226 ns/op (~2.3×)</text>
  <rect class="box new" x="16"  y="180" width="200" height="46"/><text x="26" y="200" class="t">String::with_capacity</text><text x="26" y="217" class="dim">exact len, 1 alloc</text>
  <rect class="box new" x="246" y="180" width="230" height="46"/><text x="256" y="200" class="t">push_str(cat) push(SEP)</text><text x="256" y="217" class="dim">for part in &amp;[String]: push</text>
  <rect class="box new" x="506" y="180" width="190" height="46"/><text x="516" y="200" class="t">push(SEP) push_str(name)</text><text x="516" y="217" class="dim">= same bytes</text>
  <path class="arr" d="M216,203 L246,203"/><path class="arr" d="M476,203 L506,203"/>

  <text x="16" y="270" class="dim">guard: table_key_is_byte_identical_to_legacy_format (always-on) · heavy runs → Loki/Odin</text>
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