There are now less that 400 days until the end of life
of Python 2(aka _legacy_ Python) https://pythonclock.org/ .
The code compatibility check for python2 and python3
used the following tools: futurize, flake8
You can see the reports here: https://travis-ci.com/bmsdave/v8/builds

This CL was uploaded by git cl split.

Bug: v8:8594
Change-Id: I661c52a70527e8ddde841fee6d4dcba282b4a938
Reviewed-on: https://chromium-review.googlesource.com/c/1470123
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59675}

Making --data-path a subdir of --user-data-dir makes it easier to clean up
data after a benchmark run.

Bug: chromium:861668
Change-Id: If44527163ea396b11346d65d76411d03a5b9a424
Reviewed-on: https://chromium-review.googlesource.com/c/1292065Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56856}

Change-Id: Ie741a8e4452b6d65ec73bd91ecdea869d7eedc25
BUG: v8:8192
Reviewed-on: https://chromium-review.googlesource.com/1230100
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56011}

Also removes the --no-recompile-concurrent from the callstats.py script.

BUG=v8:7790

Change-Id: I7e652dd273fd12565e086fe579bdf5974a876d9c
Reviewed-on: https://chromium-review.googlesource.com/1202402Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55709}

This reverts commit 1e1cca61.

Reason for revert: breaks builders

Original change's description:
> [tools] Keep raw data in the generated JSON for debugging purposes
> 
> R=​machenbach@chromium.org
> 
> Bug: chromium:861668
> Change-Id: Ic3225ed5919c21a7f6a9f21cba4aa491e1d6606d
> Reviewed-on: https://chromium-review.googlesource.com/1140331
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54508}

TBR=machenbach@chromium.org,sergiyb@chromium.org

Change-Id: I10dff94c9cfe08c4a6b6d4d225b429fe16b95d19
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:861668
Reviewed-on: https://chromium-review.googlesource.com/1141784Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54517}

R=machenbach@chromium.org

Bug: chromium:861668
Change-Id: Ic3225ed5919c21a7f6a9f21cba4aa491e1d6606d
Reviewed-on: https://chromium-review.googlesource.com/1140331Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54508}

Abort after reaching MAX_NOF_RETRIES since there is only a very low chance
that the page will keep on working after that.

Change-Id: Ia9e5f3cf69ae2b5ad40a60f86a46800541404862
Bug: v8:7941
Reviewed-on: https://chromium-review.googlesource.com/1134771Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54433}

Bug: chromium:758183
Change-Id: I6858d9a3294270dde8913b8fb1a3e80008461ff6
Reviewed-on: https://chromium-review.googlesource.com/806118Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49832}

This makes all the information that is present for GCTracer also
available to RCS.

Bug: chromium:748569
Change-Id: Ie7e8c3770b81ab1321cad08f6954492b72ef0514
Reviewed-on: https://chromium-review.googlesource.com/585427
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47043}

Adwords dominates the numbers and is flaky. Speedometer is measured elsewhere.

Perf sheriffs: This will change the numbers on the RuntimeStats benchmarks.

Change-Id: Id64863b41b95269987c95d48ce90f24cfa86b86d
Reviewed-on: https://chromium-review.googlesource.com/449674Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43598}

We don't track concurrent recompilation/optimization in RCS, disabling it will
give us a better idea of the performance of our compilers.

Change-Id: I8138b09d5f112914f7c7929e9ece6f543423fd03
Reviewed-on: https://chromium-review.googlesource.com/436404Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#42901}

Tracks background compilation of Ignition in a separate bucket from main thread
compilation. Also add some more compilation buckets for functions which can take a
significant proportion of compilation.

BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2577263002
Cr-Original-Commit-Position: refs/heads/master@{#42026}
Committed: https://chromium.googlesource.com/v8/v8/+/b0e9116d59326a4f9a4f4691b61a510e342338c9
Review-Url: https://codereview.chromium.org/2577263002
Cr-Commit-Position: refs/heads/master@{#42042}

Revert of [Compiler] Track Ignition background compilation separately in RuntimeStats. (patchset #3 id:80001 of https://codereview.chromium.org/2577263002/ )

Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/13358

Original issue's description:
> [Compiler] Track Ignition background compilation separately in RuntimeStats.
>
> Tracks background compilation of Ignition in a separate bucket from main thread
> compilation. Also add some more compilation buckets for functions which can take a
> significant proportion of compilation.
>
> BUG=v8:5203,v8:5215
>
> Review-Url: https://codereview.chromium.org/2577263002
> Cr-Commit-Position: refs/heads/master@{#42026}
> Committed: https://chromium.googlesource.com/v8/v8/+/b0e9116d59326a4f9a4f4691b61a510e342338c9

TBR=jochen@chromium.org,cbruni@chromium.org,rmcilroy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2609773003
Cr-Commit-Position: refs/heads/master@{#42031}

Tracks background compilation of Ignition in a separate bucket from main thread
compilation. Also add some more compilation buckets for functions which can take a
significant proportion of compilation.

BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2577263002
Cr-Commit-Position: refs/heads/master@{#42026}

Review-Url: https://codereview.chromium.org/2559723002
Cr-Commit-Position: refs/heads/master@{#41615}

Drive-by-fix: support directly loading the results.json from chromeperf.

BUG=chromium:672024
NO_TRY=true

Review-Url: https://codereview.chromium.org/2555693007
Cr-Commit-Position: refs/heads/master@{#41586}

R=ishell@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2505853005
Cr-Commit-Position: refs/heads/master@{#41061}

BUG=

Review-Url: https://codereview.chromium.org/2509683002
Cr-Commit-Position: refs/heads/master@{#41047}

Revert of [tools] Support custom script injection for callstats.py (patchset #1 id:1 of https://codereview.chromium.org/2455623002/ )

Reason for revert:
speculative revert to address regressions on cnn.com benchmark.

Original issue's description:
> [tools] Support custom script injection for callstats.py
>
> This is a poor-man's solution to trigger page interactions.
>
> BUG=

TBR=jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Review-Url: https://codereview.chromium.org/2464053005
Cr-Commit-Position: refs/heads/master@{#40710}

This is a poor-man's solution to trigger page interactions.

BUG=

Review-Url: https://codereview.chromium.org/2455623002
Cr-Commit-Position: refs/heads/master@{#40604}

BUG=

Review-Url: https://codereview.chromium.org/2379613002
Cr-Commit-Position: refs/heads/master@{#39835}

BUG=
NOTRY=true

Review-Url: https://codereview.chromium.org/2380643002
Cr-Commit-Position: refs/heads/master@{#39816}

Without --enable-benchmarking we might get flaky results due to active
finch experiments.

BUG=
NOTRY=true

Review-Url: https://codereview.chromium.org/2369903002
Cr-Commit-Position: refs/heads/master@{#39752}

The previous change accidentally shifted categories around which broke our
performance graphs.

BUG=

Review-Url: https://codereview.chromium.org/2369863002
Cr-Commit-Position: refs/heads/master@{#39721}

Group-Total-V8 contains all but Group-Callback times which should lead to more
stable data.

R=hablich@chromium.org
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2366523002
Cr-Commit-Position: refs/heads/master@{#39668}

BUG=
R=cbruni@chromium.org

Review-Url: https://codereview.chromium.org/2119823002
Cr-Commit-Position: refs/heads/master@{#37534}

BUG=

Review-Url: https://codereview.chromium.org/2058003002
Cr-Commit-Position: refs/heads/master@{#36893}

BUG=

Review-Url: https://codereview.chromium.org/2040823003
Cr-Commit-Position: refs/heads/master@{#36745}

This flag forces the page to (soft) refresh a given number of times for
each iteration.  The statistics of all refreshes are collected in the
same file.

R=cbruni@chromium.org, mvstanton@chromium.org
BUG=
LOG=N

Review-Url: https://codereview.chromium.org/1967123002
Cr-Commit-Position: refs/heads/master@{#36214}

BUG=chromium:611010
NOTRY=true

Review-Url: https://codereview.chromium.org/1976593002
Cr-Commit-Position: refs/heads/master@{#36211}

This allows benchmarking without --single-process and correctly
gathering --runtime-call-stats numbers.

Add optional parameter to %GetAndResetRuntimeCallStats

-  Without any parameter, it returns a string with the runtime call
   statistics (as before).
-  With one string parameter, it appends the statistics to the file with
   that file name.
-  With one integer parameter (which must be 1=stdout or 2=stderr), it
   prints the statistics to the output with of that file descriptor.

The injected script is automatically generated.
Also, callstats.py does not have a hardwired DEFAULT_SITES anymore.

R=cbruni@chromium.org
BUG=
LOG=N

Review-Url: https://codereview.chromium.org/1966193002
Cr-Commit-Position: refs/heads/master@{#36172}

R=cbruni@chromium.org
BUG=
LOG=N

Review-Url: https://codereview.chromium.org/1922873004
Cr-Commit-Position: refs/heads/master@{#36070}