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Cherry Mui 3f1bcc58b3 cmd/compile: simplify PGO hot caller/callee computation
Currently, we use CDF to compute a weight threshold and then use
the weight threshold to determine whether a call site is hot. As
when we compute the CDF we already have a list of hot call sites
that make up the given percentage of the CDF, just use that list.

Also, when computing the CDF threshold, include the very last node
that makes it to go over the threshold. (I.e. if the CDF threshold
is 50% and one hot node takes 60% of weight, we should include that
node instead of excluding it. In practice it rarely matters,
probably only for testing and micro-benchmarks.)

Change-Id: I535ae9cd6b679609e247c3d0d9ee572c1a1187cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/450737
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>
2022-11-17 20:52:15 +00:00
.github .github: update issue label for pkgsite-removal 2022-09-07 16:00:20 +00:00
api archive/tar, archive/zip: return ErrInsecurePath for unsafe paths 2022-11-16 23:36:48 +00:00
doc archive/tar, archive/zip: return ErrInsecurePath for unsafe paths 2022-11-16 23:36:48 +00:00
lib/time lib/time, time/tzdata: update to 2022b 2022-08-11 20:03:19 +00:00
misc misc/cgo/test: skip Test9400 on Alpine 2022-11-07 21:15:29 +00:00
src cmd/compile: simplify PGO hot caller/callee computation 2022-11-17 20:52:15 +00:00
test cmd/compile: fix broken IR for iface -> eface 2022-11-17 19:55:28 +00:00
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The Go Programming Language

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