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authorPaul E. McKenney <paulmck@kernel.org>2023-06-25 20:49:05 -0700
committerPaul E. McKenney <paulmck@kernel.org>2023-06-25 20:49:05 -0700
commitfa9d073ee6ddb31321e115908edc6cc2119ff94d (patch)
treebee702205642c1dbbd442a1645ef497e6fc645a2
parentbef8d41efe53d227a5b0f886490a161608ae4ea5 (diff)
downloadperfbook-fa9d073ee6ddb31321e115908edc6cc2119ff94d.tar.gz
cpu/overheads: Call out big atoms along with slow light
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
-rw-r--r--cpu/overheads.tex3
1 files changed, 2 insertions, 1 deletions
diff --git a/cpu/overheads.tex b/cpu/overheads.tex
index ba4a33a4..7b67db14 100644
--- a/cpu/overheads.tex
+++ b/cpu/overheads.tex
@@ -655,7 +655,8 @@ In short, hardware and software engineers are really on the same side,
with both trying to make computers go fast despite the best efforts of
the laws of physics, as fancifully depicted in
\cref{fig:cpu:Hardware and Software: On Same Side}
-where our data stream is trying its best to exceed the speed of light.
+where our data stream is trying its best to exceed the speed of light,
+further hindered by the non-zero sizes of atoms.
The next section discusses some additional things that the hardware engineers
might (or might not) be able to do, depending on how well recent
research translates to practice.