GameCult/Aetheria
Watch
9
0
Fork
You've already forked Aetheria
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

SimRateTests: split the step cost into a round's birth and its resolution

Browse source
This commit is contained in:
soul 2026-10-23 00:33:02 +02:00
commit b1380204a3
1 changed files with 10 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

11
tests/Aetheria.Shared.Tests/SimRateTests.cs
View file

@ -333,7 +333,16 @@ public sealed partial class ContactRevealTests
for (var i = 0; i < steps; i++) Step();
watch.Stop();
bytes = GC.GetAllocatedBytesForCurrentThread() - bytes;
var line = $"{guns} guns at .005 s, {SimClock.TickRate} Hz: {rounds / (double) steps:F1} rounds per step, {watch.Elapsed.TotalMilliseconds / steps:F3} ms per step, {(bytes - idleBytes) / (double) rounds:F0} heap bytes per round beyond the idle step (idle step {idle.Elapsed.TotalMilliseconds / steps:F3} ms, {idleBytes / (double) steps:F0} bytes)";
// Where the bytes go: a round's birth (FireControl.Fire) alone, and the queued rounds' commit and resolution alone.
var item0 = Guns(ships[0])[0];
for (var i = 0; i < 50; i++) FireControl.Fire(weapons[0], item0, ships[0]);
var born = GC.GetAllocatedBytesForCurrentThread();
for (var i = 0; i < 1000; i++) FireControl.Fire(weapons[0], item0, ships[0]);
born = GC.GetAllocatedBytesForCurrentThread() - born;
var settle = GC.GetAllocatedBytesForCurrentThread();
Tick(dt);
settle = GC.GetAllocatedBytesForCurrentThread() - settle;
var line = $"born {born / 1000.0:F0} B per round, 1050 rounds resolved in one step {settle / 1050.0:F0} B per round; {guns} guns at .005 s, {SimClock.TickRate} Hz: {rounds / (double) steps:F1} rounds per step, {watch.Elapsed.TotalMilliseconds / steps:F3} ms per step, {(bytes - idleBytes) / (double) rounds:F0} heap bytes per round beyond the idle step (idle step {idle.Elapsed.TotalMilliseconds / steps:F3} ms, {idleBytes / (double) steps:F0} bytes)";
System.IO.File.WriteAllText(System.IO.Path.Combine(System.IO.Path.GetTempPath(), "simrate-stepcost.txt"), line);
Assert.True(Math.Abs(rounds / (double) steps - guns * dt / .005) < 1.0 * guns, line);
}