Equation 4 · Part 1 · AI Memory Systems and the Bandwidth Wall in Practice: An Advanced Technical Guide
Symbol d_h
What this part means
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol d_h→Article meaning
The passage around this formula
with L transformer layers, H key-value heads, head dimension, b batch size, s sequence length and p bytes per stored element, the factor of two counting keys and values separately. Every strategy below is, mechanically, an attempt to shrink one term of this product without shrinking the model’s effective context.
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
See this notation across published equations →
Sources cited in the article section
- [4] Efficient Memory Management for Large Language Model Serving with PagedAttention ↗
- [5] KIVI: A Tuning-Free Asymmetric 2bit Quantization for KV Cache ↗
These citations provide research context; check each source for the exact claim it supports.