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https://github.com/MobileGL-Dev/MobileGL
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08d14d85ef
- DriverBenchStateToggle was an entry that could not fail for the reason it was added. A case name matching nothing in kBenchCases selected nothing, run_case is void, and main returned 0 unconditionally, so renaming or dropping mc_state_toggle left the entry green while measuring nothing - the exact state it was landed to end (ROADMAP.md:7). - DriverBench now refuses an unknown case name before any GL work (exit 2, listing the cases it does have), so a caller that names a case - run_driver_bench.sh included - learns the case is gone instead of getting an empty CSV. - Both ctest entries additionally require the case's own output row via PASS_REGULAR_EXPRESSION, so the gate stands on the evidence rather than on that check staying in the binary. The toggle entry pins the ops-per-frame column to 46, because the mc_* cases are deliberately excluded from the DRIVERBENCH_DRAWS scaling and 46 toggles per frame is part of what "this case still runs" means. A PASS_REGULAR_EXPRESSION makes ctest ignore the exit code, which is why the row is what is checked; the comment says so. - Verified: renaming mc_state_toggle in kBenchCases -> DriverBenchStateToggle FAILS; setting its ops-per-frame to 45 -> FAILS; restored -> both entries pass again.
62 lines
3.7 KiB
CMake
62 lines
3.7 KiB
CMake
cmake_minimum_required(VERSION 3.24)
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# A real, headless EGL client, deliberately NOT linked against MobileGL: it
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# dlopens one EGL provider at runtime ($DRIVERBENCH_EGL_LIB - the system
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# libEGL.so.1 for the native driver, or a libMobileGL.so path for either
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# MobileGL backend), so the same binary measures all three stacks.
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if (NOT UNIX OR APPLE OR ANDROID)
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return()
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endif()
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add_executable(DriverBench DriverBench.c)
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target_link_libraries(DriverBench PRIVATE dl)
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# WHY EVERY ENTRY HERE CARRIES A PASS_REGULAR_EXPRESSION.
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#
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# DriverBench prints one CSV row per case it ran and exits 0 whatever it ran. Before this, a ctest
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# entry naming a case therefore could not answer the only question it exists to ask: an argument
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# matching nothing in kBenchCases selected no case, printed only the header row, and still exited
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# 0. DriverBench.c now refuses an unknown case name (exit 2), which closes it at the source - but
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# the entry must be able to go red for the reason it exists WITHOUT depending on that check
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# staying in the binary, so each entry also requires the case's own output row to appear.
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#
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# The regex is what a healthy run of that case prints and nothing else does: the case name at the
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# start of a line, then the frames / ops-per-frame / median-ms / ns-per-op / fps columns
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# (run_case()). A rename, a drop from kBenchCases, a boot_egl() failure or
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# a crash part-way through the case all remove that row and turn the entry red.
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#
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# Note that a PASS_REGULAR_EXPRESSION makes ctest ignore the process exit code (cmCTestRunTest:
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# success is `retVal == 0 || !RequiredRegularExpressions.empty()`), which is why the row itself
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# has to be the evidence rather than a companion to the rc.
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add_test(NAME DriverBench COMMAND DriverBench draw_tiny)
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# draw_tiny's a/ops scale with $DRIVERBENCH_DRAWS (main()), so only the shape of
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# the row is pinned here, not the column values.
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set_tests_properties(DriverBench PROPERTIES
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LABELS benchmark
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PASS_REGULAR_EXPRESSION "(^|\n)draw_tiny,[0-9]+,[0-9]+,[0-9.]+,[0-9.]+,[0-9.]+")
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# The Blaze3D blend toggle, as its own entry.
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#
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# mc_state_toggle is glEnable(GL_BLEND) / glBlendFuncSeparate / glDrawElements /
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# glDisable(GL_BLEND) / glDrawElements, 46 times - the measured vanilla-frame rate, and the exact
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# shape ROADMAP.md writes down as the microbenchmark P2 owes the GO/NO-GO. It is the workload the
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# whole "push at validate, not in the setter" decision was made for: a per-setter design pays for
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# every toggle, and a CSO that is minted twice and then reused pays for none of them.
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#
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# The case has existed in kBenchCases since P0 and nothing ran it, so nothing noticed if it broke.
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# Exposing it costs about 1.2 s inside an existing three-minute job, and it means the number the
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# P2 report quotes comes from a case CI has been executing all along rather than from a code path
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# whose first run is the day it is measured.
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#
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# Like the entry above, this runs against whatever $DRIVERBENCH_EGL_LIB names (the system driver
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# when unset) - the ctest entry is a "does this case still run" gate, not the measurement. The
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# measurement is run_driver_bench.sh against each of {native, espryt, magma}.
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add_test(NAME DriverBenchStateToggle COMMAND DriverBench mc_state_toggle)
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# The ops-per-frame column is pinned to 46 here, unlike the entry above: the mc_* cases are
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# excluded from the $DRIVERBENCH_DRAWS scaling on purpose ("the mc_* rates are measured and must
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# not move, or the numbers stop being comparable", main()), so 46 toggles per frame
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# is part of what "this case still runs" means. Change the workload and this entry says so.
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set_tests_properties(DriverBenchStateToggle PROPERTIES
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LABELS benchmark
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PASS_REGULAR_EXPRESSION "(^|\n)mc_state_toggle,[0-9]+,46,[0-9.]+,[0-9.]+,[0-9.]+")
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