feedc0de/boost_unordered
1
0
Fork 0
forked from boostorg/unordered
Code Pull Requests Activity

typos

Browse Source
This commit is contained in:
joaquintides
2022-11-27 19:39:07 +01:00
parent 324fa793fd
commit ffa5e6f805
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
doc/unordered/buckets.adoc
View File

@ -280,7 +280,7 @@ bucket), and an _overflow byte_ (_ofw_ in the diagram). The value of _h_~_i_~ is
When looking for an element with hash value _h_, SIMD technologies such as When looking for an element with hash value _h_, SIMD technologies such as
https://en.wikipedia.org/wiki/SSE2[SSE2] and https://en.wikipedia.org/wiki/SSE2[SSE2] and
https://en.wikipedia.org/wiki/ARM_architecture_family#Advanced_SIMD_(Neon)[Neon] allows us https://en.wikipedia.org/wiki/ARM_architecture_family#Advanced_SIMD_(Neon)[Neon] allow us
to very quickly inspect the full metadata word and look for the reduced value of _h_ among all the to very quickly inspect the full metadata word and look for the reduced value of _h_ among all the
15 buckets with just a handful of CPU instructions: non-matching buckets can be 15 buckets with just a handful of CPU instructions: non-matching buckets can be
readily discarded, and those whose reduced hash value matches need be inspected via full readily discarded, and those whose reduced hash value matches need be inspected via full
@ -299,7 +299,7 @@ and when going past a full group its corresponding overflow bit is set to 1.
In architectures without SIMD support, the logical layout stays the same, but the metadata In architectures without SIMD support, the logical layout stays the same, but the metadata
word is codified using a technique we call _bit interleaving_: this layout allows us word is codified using a technique we call _bit interleaving_: this layout allows us
to emulate SIMD with reasonably good performance using only standard arithmetic and to emulate SIMD with reasonably good performance using only standard arithmetic and
logical operations . logical operations.
[#img-foa-metadata-interleaving] [#img-foa-metadata-interleaving]
.Bit-interleaved metadata word. .Bit-interleaved metadata word.