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Do not use g_FrequencyFilter to calculate the real frame time.
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Authored by wraitii on Wed, Nov 4, 5:45 PM.
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Summary

This would make it possible to use less precise timers, enabling deletion of most code in D2726 and fixing it.

Test Plan

Compile, try to notice if the game framerate seems smoother than before.

The question that must be answered is: "can this be done without making the game twitchy?"

Event Timeline

wraitii created this revision.Wed, Nov 4, 5:45 PM
Vulcan added a comment.Wed, Nov 4, 7:13 PM

Successful build - Chance fights ever on the side of the prudent.

builderr-debug-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:155:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
../../../source/third_party/fmt/format.cpp:145:7: warning: '_POSIX_C_SOURCE' is not defined, evaluates to 0 [-Wundef]
#if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || (defined(__ANDROID__) && __ANDROID__)
      ^
../../../source/third_party/fmt/format.cpp:145:37: warning: '_XOPEN_SOURCE' is not defined, evaluates to 0 [-Wundef]
#if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || (defined(__ANDROID__) && __ANDROID__)
                                    ^
2 warnings generated.
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.
builderr-release-macos.txt
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libnetwork.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libtinygettext.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libtinygettext.a(tinygettext.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/liblobby.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libglooxwrapper.a(precompiled.o) has no symbols
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:155:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libsimulation2.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libscriptinterface.a(precompiled.o) has no symbols
../../../source/third_party/fmt/format.cpp:145:7: warning: '_POSIX_C_SOURCE' is not defined, evaluates to 0 [-Wundef]
#if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || (defined(__ANDROID__) && __ANDROID__)
      ^
../../../source/third_party/fmt/format.cpp:145:37: warning: '_XOPEN_SOURCE' is not defined, evaluates to 0 [-Wundef]
#if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || (defined(__ANDROID__) && __ANDROID__)
                                    ^
2 warnings generated.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libengine.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libgraphics.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libatlas.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libgui.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/liblowlevel.a(dbghelp.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/liblowlevel.a(file_stats.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/liblowlevel.a(vfs_path.o) has no symbols
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.

Link to build: https://jenkins.wildfiregames.com/job/macos-differential/1716/display/redirect

wraitii requested review of this revision.Wed, Nov 4, 7:13 PM
Stan added a subscriber: Stan.Fri, Nov 6, 10:53 AM

I tested this, it works but it does not make it smoother for me. My FPS oscillates from 170 to 220 on acropolis_bay_2p

source/main.cpp
333–337
395

Useless cast.

In D3057#134540, @Stan wrote:

I tested this, it works but it does not make it smoother for me. My FPS oscillates from 170 to 220 on acropolis_bay_2p

The 'expectation' is that it would make things noticeably less smooth, actually.

vladislavbelov added inline comments.
source/main.cpp
334

That's the bad value. You might get a huge realTimeSinceLastFrame to update some components.

337

How this difference solves the problem with spikes (because of CPU/GPU stall, OS pause)?

wraitii edited the test plan for this revision. (Show Details)Sat, Nov 7, 7:56 AM