Add support for direct jumping on True/False for strict equals of boolean
literals. This improves the score for such comparisons by around 75% on
baseline code, and by around 40x on optimized code for the added performance
test.
Bug=v8:6403
Change-Id: I81ea16a057e081eb6d159cd64c8e8615f65f9abb
Reviewed-on: https://chromium-review.googlesource.com/509570
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45450}
R=adamk@chromium.org
Bug:
Change-Id: I47087c6a15beceb7084079dcf644de7e9ede772c
Reviewed-on: https://chromium-review.googlesource.com/505620
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45342}
Forcing an object into dictionary mode now requires deleting
a property that's not the last property.
BUG=chromium:718816
NOTRY=true
Review-Url: https://codereview.chromium.org/2860403002
Cr-Commit-Position: refs/heads/master@{#45140}
Update the json file in js-perf-test with compare bytecode handler tests.
This cl (https://chromium-review.googlesource.com/c/485522/) adds new
tests but not all of them are updated in the json file.
Bug:v8:4280
Change-Id: Ifd1f479b770a4277fbba1de51ca2f7cbc26003cb
Reviewed-on: https://chromium-review.googlesource.com/487961
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44879}
Adds a micro benchmark in js-perf-test to measure the performance of
compare bytecode handlers.
Bug:v8:4280
Change-Id: Ic86d670f8f09147076a22cfeff2e1ec052afe20c
Reviewed-on: https://chromium-review.googlesource.com/485522
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44843}
In particular the Babel generated code for simple constructors is
of interest here, since that's what we hit in the wild most often
currently.
BUG=v8:6275
R=yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2822203004
Cr-Commit-Position: refs/heads/master@{#44719}
Functions that take mandatory parameters plus a number of optional
parameters, that need to be materialized as an Array are quite common.
The simplest possible case of this is essentially:
function foo(mandatory, ...args) { return args; }
Babel translates this to something like:
function foo(mandatory) {
"use strict";
for (var _len = arguments.length,
args = Array(_len > 1 ? _len - 1 : 0),
_key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
return args;
}
The key to great performance here is to make sure that we don't
materialize the (unmapped) arguments object in this case, plus that we
have some kind of fast-path for the Array constructor and the
initialization loop.
This microbenchmark ensures that we have decent performance even in the
case where the assignment to args is polymorphic, i.e. the arguments
have seen different elements kinds, starting with FAST_HOLEY_ELEMENTS
and then FAST_HOLEY_SMI_ELEMENTS.
R=yangguo@chromium.org
BUG=v8:6262
Review-Url: https://codereview.chromium.org/2823343004
Cr-Commit-Position: refs/heads/master@{#44709}
Adds some benchmarks copied from v8:4762.
BUG=v8:4762, v8:5460
R=adamk@chromium.org
Change-Id: I0b96080042781c2c46c0c8a3896a921bde97c1e5
Reviewed-on: https://chromium-review.googlesource.com/475934
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#44629}
This constructs different typed arrays from different types of other
typed arrays, hopefully countering microbenchmarks which are able to
optimize for exactly one pair of types.
Bug: v8:5977
Change-Id: Ie3b07d6ecaaca6db0be410e902e437a2a643d71c
Reviewed-on: https://chromium-review.googlesource.com/474748
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44576}
The resources list is required for android, where these files are
pushed to the device. The android bots have been failing due to these
missing resources, as the files are not available on the devices.
NOTRY=true
Change-Id: Ibef3cfc10e01250cb380128013e3c304927b5459
Change-Id: Ibef3cfc10e01250cb380128013e3c304927b5459
Reviewed-on: https://chromium-review.googlesource.com/463266
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44291}
This should be the fastest case, as we can just copy the backing store
directly. Adding this test so that we can monitor if upcoming changes
regress this path.
BUG=v8:5977
Change-Id: I021a199061ac845f265a906bda68b7ad3e8d5708
Reviewed-on: https://chromium-review.googlesource.com/461183
Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44225}
The regex was slightly off, meaning the results would not
display properly.
Change-Id: Ie3b2bf54a50bffde9b64663d7b8b8c0ad39a1212
Reviewed-on: https://chromium-review.googlesource.com/458416
Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44007}
Adds a perf test for constructing a TypedArray from a regular array,
and from a pre-made ArrayBuffer. Runs both new tests with default and
future configurations for comparison.
BUG=v8:5977
Change-Id: Idd132ca879702c54b2947a0e57ed8fe782f2767f
Reviewed-on: https://chromium-review.googlesource.com/446342
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43412}
Add a simple benchmark for a TypedArray constructor. Run once with the
default pipeline and once with turbofan so that we can compare the
performance.
Also fixes a typo in the Regex for the result of the CopyWithin
benchmark which stopped the results showing up in the perf
dashboard.
BUG=
Change-Id: Ic2eb0bd1e02b458c1163e97130abd0e7531c2e1c
Reviewed-on: https://chromium-review.googlesource.com/440225
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43087}
The results are unreliable as-is, because es5 and es6 run in the same d8
process consecutively. The graph also shows a huge amount of noise,
which seems to be mostly resolved with this change.
Review-Url: https://codereview.chromium.org/2675263002
Cr-Commit-Position: refs/heads/master@{#42961}
In preparation for more perf work in turbofan, so that we can actually
see the results on the graph.
BUG=v8:5932
Review-Url: https://codereview.chromium.org/2676263002
Cr-Commit-Position: refs/heads/master@{#42960}
Reason for revert:
Causes test timeouts.
Original issue's description:
> [Test] Do a set number of runs to trigger optimisation for SuperSpread.
>
> BUG=v8:5895
>
> Review-Url: https://codereview.chromium.org/2669523002
> Cr-Commit-Position: refs/heads/master@{#42811}
> Committed: d4c22c3084TBR=bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5895
Review-Url: https://codereview.chromium.org/2669553002
Cr-Commit-Position: refs/heads/master@{#42812}
The graphs don't show any performance bump for
https://codereview.chromium.org/2659623002, which I do see a much better result for
locally. I suspect the function isn't being optimized in turbofan when the
benchmarks run. Maybe this warmup flag will trigger that.
BUG=v8:5895
Review-Url: https://codereview.chromium.org/2664783002
Cr-Commit-Position: refs/heads/master@{#42776}
We compare ES5, ES6 and a Babel transpilation of the ES6 test.
BUG=v8:5894
Review-Url: https://codereview.chromium.org/2655063003
Cr-Commit-Position: refs/heads/master@{#42689}
These benchmarks are intended to compare the overhead of async-await vs.
a naive promise implementation vs. the babel async-await transformation.
The functions in the benchmark don't do any work themselves, so results
should reflect only overhead of the chosen implementation.
Current numbers on my local machine (higher is better):
BaselineES2017-AsyncAwait(Score): 2006
BaselineNaivePromises-AsyncAwait(Score): 7470
Native-AsyncAwait(Score): 3640
BUG=v8:5639
Review-Url: https://codereview.chromium.org/2577393002
Cr-Commit-Position: refs/heads/master@{#41860}
Short living closures are very common in Node.js. This benchmark tracks progress
as we move the optimizations that are currently only behind
--mark_shared_functions_for_tier_up to the default settings.
BUG=v8:5512
Committed: https://crrev.com/f277da2a00cfd27d44a33a70213a65bd82d0bc95
Review-Url: https://codereview.chromium.org/2525053002
Cr-Original-Commit-Position: refs/heads/master@{#41246}
Cr-Commit-Position: refs/heads/master@{#41487}
Defining the subclass within the loop significantly affects subsequent
test results. For instance, the Search benchmark is 50% slower if the
subclass is defined within the loop.
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2537253003
Cr-Commit-Position: refs/heads/master@{#41384}
This adds microbenchmarks for:
* the RegExp constructor,
* flag accessors,
* and RegExp functions: exec, @@match, @@search, test, @@split, @@replace.
Each benchmark is further split to measure fast and slow paths.
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2521263003
Cr-Commit-Position: refs/heads/master@{#41285}
Reason for revert:
Fails on perf.
Original issue's description:
> [test] Add performance test for closures.
>
> Short living closures are very common in Node.js. This benchmark tracks progress
> as we move the optimizations that are currently only behind
> --mark_shared_functions_for_tier_up to the default settings.
>
> BUG=v8:5512
>
> Committed: https://crrev.com/f277da2a00cfd27d44a33a70213a65bd82d0bc95
> Cr-Commit-Position: refs/heads/master@{#41246}
TBR=bmeurer@chromium.org,leszeks@chromium.org,franzih@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5512
Review-Url: https://codereview.chromium.org/2526163003
Cr-Commit-Position: refs/heads/master@{#41261}
Short living closures are very common in Node.js. This benchmark tracks progress
as we move the optimizations that are currently only behind
--mark_shared_functions_for_tier_up to the default settings.
BUG=v8:5512
Review-Url: https://codereview.chromium.org/2525053002
Cr-Commit-Position: refs/heads/master@{#41246}
Add array pattern destructuring micro-benchmarks. These benchmarks compare
a naive ES5 immplementation to an ES6-style implementation that uses
destructuring.
Adapted from http://kpdecker.github.io/six-speed
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2513273002
Cr-Commit-Position: refs/heads/master@{#41126}
The android_arm config is deprecated. We only use the v8 arch
strings.
NOTRY=true
TBR=adamk, caitp
Review-Url: https://codereview.chromium.org/2412513002
Cr-Commit-Position: refs/heads/master@{#40172}
The test still runs into the 240s timeout on Nexus5 and
Nexus7.
NOTRY=true
TBR=adamk, caitp
Review-Url: https://codereview.chromium.org/2406173002
Cr-Commit-Position: refs/heads/master@{#40151}
The create.js file is loaded unconditionally in run.js,
therefore we need to add it to resources, otherwise it
fails on Android.
TBR=caitp@igalia.com
NOTRY=true
Review-Url: https://codereview.chromium.org/2401883002
Cr-Commit-Position: refs/heads/master@{#40084}
Strings takes a considerate amount of time and times out on
many platforms. Generally the iterations need to be reduced
to free resources.
NOTRY=true
TBR=hablich@chromium.org
Review-Url: https://codereview.chromium.org/2374393002
Cr-Commit-Position: refs/heads/master@{#39856}
1) Create fast objects so that they stay fast after creation.
2) Run combination "test_function vs {test_objects}" as a benchmark during 1 second.
This CL changes benchmark's base score.
Review-Url: https://codereview.chromium.org/1988673002
Cr-Commit-Position: refs/heads/master@{#36277}
In order to track certain critical code-patters we will start adding
micro-benchmarks that reflect common requests on http://jsperf.com.
In this first CL a number of property enumeration methods are added,
in the hope to get a clearer picture on future regressions.
BUG=
Review URL: https://codereview.chromium.org/1702613002
Cr-Commit-Position: refs/heads/master@{#34425}
In order to track certain critical code-patters we will start adding
micro-benchmarks that reflect common requests on http://jsperf.com.
In this first CL a number of property enumeration methods are added,
in the hope to get a clearer picture on future regressions.
BUG=
Review URL: https://codereview.chromium.org/1702613002
Cr-Commit-Position: refs/heads/master@{#34364}
It's been enabled since M45, which is now well into its stable period,
with no problems reported.
Review URL: https://codereview.chromium.org/1356793002
Cr-Commit-Position: refs/heads/master@{#30835}
The preparser needs to log the usage of super properties and then update
the scope when we create the function later.
BUG=v8:3888
LOG=N
R=dslomov@chromium.org, marja
Review URL: https://codereview.chromium.org/923683002
Cr-Commit-Position: refs/heads/master@{#26642}
This adds a common perf configuration for JSTests including
Classes, Collections, Iterators and Strings. This allows
the android test runner to handle subdirectories correctly
and to share the base.js resource in the parent directory.
The new json config has added resources configs for the
Android runner.
The perf runner's relative paths on the device are fixed as
well. Resources are only pushed on the configuration node
where they are specified. They are pushed to a dir on the
device that follows the same directory structure as on the
host. The binary is executed in the benchmark folder on the
device like on the host to allow relative path file
loading.
BUG=chromium:374740
LOG=n
TEST=python -m unittest run_perf_test
TBR=ulan@chromium.org
NOTRY=true
Review URL: https://codereview.chromium.org/779923002
Cr-Commit-Position: refs/heads/master@{#25655}
The big change here is to split out each key type into its own
benchmark suite, since optimizations for different key types
are likely to be disjoint. ForEach tests have also been split
into separate "Iteration" suites, again with the thought that
iteration performance is likely separable from key type.
As part of adding the new tests, rejiggered the existing tests:
- Map.set and Set.add (along with their Weak variants) no longer
include construction costs in their scores
- Moved key logic into the shared common.js
R=arv@chromium.org, machenbach@chromium.org
Review URL: https://codereview.chromium.org/685753004
Cr-Commit-Position: refs/heads/master@{#24969}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24969 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
