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[snapshot] Disable snapshot compression on desktop

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Snapshot decompression for new isolates or new context is roughly 10%
of the time. Unlike on mobile, we don't need to compress the snapshot
on desktop where we can live with a 400KiB regression.

Bug: v8:12195, chromium:1270752
Change-Id: Ie4b307125f5df3d94374d5295b06c457ab6e8c24
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3275554
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78087}
This commit is contained in:
Camillo Bruni 2021-11-24 20:13:39 +01:00 committed by V8 LUCI CQ
parent 56f44fc3ea
commit ae6eb0e209
1 changed files with 4 additions and 2 deletions
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6
BUILD.gn
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@ -275,8 +275,10 @@ declare_args() {
# Generate comments describing the Torque intermediate representation.
v8_annotate_torque_ir = false
# Disable all snapshot compression.
v8_enable_snapshot_compression = true
# Enable snapshot compression (enabled by default for desktop) devices.
v8_enable_snapshot_compression =
target_os == "android" || target_os == "chromeos" ||
target_os == "fuchsia"
# Enable control-flow integrity features, such as pointer authentication for
# ARM64.