Commit 0915fa3e authored by Stephen Roe's avatar Stephen Roe Committed by Commit Bot

Change the fuchsia_arm64 trybot from a 10% experiment to 50%.

Build times for the arm64 CQ 10% bot experiment over the last 6 days
are similar to the existing x64 CQ trybot:

builder	fuchsia_arm64	fuchsia_x64
builds	487	5109
build_minutes_p50	31.42	24.98
build_minutes_p70	46.82	40.13
build_minutes_p90	56.05	51.45

Stability is good at 10%
https://ci.chromium.org/p/chromium/builders/try/fuchsia_arm64

Capacity is also good at 10%.  The average number of arm64 bots running
at one time at 10% CQ varies from 8 to 15 by day out of 240 bots.
Typical spikes are 50 to 60 bots active when a CL build is in progress
or 100 to 120 bots active when two CL builds overlap.

Pending times at 10% CQ are low. p90 is 2 seconds, p95 is 8 seconds.

There is more build time info at
https://docs.google.com/spreadsheets/d/1Z_iOiX-9mTDxJrZJri97A-JY-goYkTHlKU4M9EDXLpA

There is more pending time info at
https://docs.google.com/spreadsheets/d/1YdszSQlLDi5X4Qnakess7YIfSLBu4hzZJ3aZ6cKPFX4

There is more capacity and bot usage info at
https://docs.google.com/spreadsheets/d/1Zfn5w9yMB1oINtinS1KMblRbB209YfkqQsHRUKxdk7Q

Bug: 1042511
Change-Id: I0b37c7602ddc8fa853dc6e18eeceb2ef396b8e86
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2252634Reviewed-by: default avatarBen Pastene <bpastene@chromium.org>
Commit-Queue: Stephen Roe <steveroe@google.com>
Cr-Commit-Position: refs/heads/master@{#780329}
parent 8b1a09c9
......@@ -465,7 +465,7 @@ config_groups {
}
builders {
name: "chromium/try/fuchsia_arm64"
experiment_percentage: 10
experiment_percentage: 50
}
builders {
name: "chromium/try/fuchsia_x64"
......
......@@ -338,7 +338,7 @@ as required builders.
* Experiment percentage: 50
* [fuchsia_arm64](https://ci.chromium.org/p/chromium/builders/try/fuchsia_arm64) ([definition](https://cs.chromium.org/search?q=package:%5Echromium$+file:/cq.star$+-file:/beta/+-file:/stable/+fuchsia_arm64)) ([matching builders](https://cs.chromium.org/search?q=+file:trybots.py+fuchsia_arm64))
* Experiment percentage: 10
* Experiment percentage: 50
* [ios-simulator-code-coverage](https://ci.chromium.org/p/chromium/builders/try/ios-simulator-code-coverage) ([definition](https://cs.chromium.org/search?q=package:%5Echromium$+file:/cq.star$+-file:/beta/+-file:/stable/+ios-simulator-code-coverage)) ([matching builders](https://cs.chromium.org/search?q=+file:trybots.py+ios-simulator-code-coverage))
* Experiment percentage: 3
......
......@@ -356,7 +356,7 @@ try_.chromium_linux_builder(
try_.chromium_linux_builder(
name = 'fuchsia_arm64',
tryjob = try_.job(
experiment_percentage=10,
experiment_percentage=50,
),
)
......
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