revise May 2026 systems performance articles

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+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 960 540" role="img" aria-labelledby="title desc"><title id="title">Synthetic load and latency comparison boundary</title><desc id="desc">Две точки разных synthetic нагрузок соединены перечёркнутой линией: сравнивать эффект нельзя.</desc><rect width="960" height="540" fill="#0c1220"/><text x="56" y="62" fill="#f8fafc" font-family="system-ui" font-size="28" font-weight="700">comparison needs one fixed boundary</text><line x1="150" y1="440" x2="870" y2="440" stroke="#94a3b8" stroke-width="3"/><line x1="150" y1="440" x2="150" y2="120" stroke="#94a3b8" stroke-width="3"/><text x="745" y="478" fill="#cbd5e1" font-family="system-ui" font-size="18">synthetic load</text><text x="38" y="132" fill="#cbd5e1" font-family="system-ui" font-size="18">path units</text><circle cx="360" cy="220" r="16" fill="#38bdf8"/><text x="282" y="188" fill="#dbeafe" font-family="system-ui" font-size="18">A: 12 / 3 / shape-a</text><circle cx="690" cy="290" r="16" fill="#f59e0b"/><text x="612" y="330" fill="#fde68a" font-family="system-ui" font-size="18">B: 24 / 6 / shape-b</text><line x1="376" y1="228" x2="674" y2="282" stroke="#f87171" stroke-width="8"/><line x1="480" y1="220" x2="570" y2="302" stroke="#f8fafc" stroke-width="7"/><line x1="570" y1="220" x2="480" y2="302" stroke="#f8fafc" stroke-width="7"/><text x="355" y="390" fill="#fca5a5" font-family="system-ui" font-size="22" font-weight="700">different load ≠ evidence of acceleration</text></svg>