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| author | Michael Anthony Knyszek <mknyszek@google.com> | 2024-08-16 15:13:52 +0000 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-11-18 20:35:39 +0000 |
| commit | 06e6b8efa4c9fbe4b8ceec8c655011117a50279a (patch) | |
| tree | e697f72cdb720dfcd30c46a8deefa3af1e7b2a87 /src/sync | |
| parent | 50f1888814e2a72cb368c145a0d1c2f3af7a2f05 (diff) | |
| download | go-06e6b8efa4c9fbe4b8ceec8c655011117a50279a.tar.xz | |
internal/sync: optimize CompareAndSwap and Swap
We observe the CompareAndSwap and Swap can both be substantially faster
if the value in each entry node is mutable. This change modifies the
map entry node to store the value indirectly, allowing us to perform
swaps for existing nodes and compare-and-swaps without taking the
parent node's lock.
Change-Id: I371343aa81a843d3a7e6bc5ac87b8a96c12ca3a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/606462
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Diffstat (limited to 'src/sync')
0 files changed, 0 insertions, 0 deletions