feat: add memory profiling support

[not-matthias]

TODO: REmove the custom memtrack installation before merging

[codspeed-hq]

Merging this PR will degrade performance by 35.81%

⚡ 13 improved benchmarks
❌ 19 regressed benchmarks
✅ 160 untouched benchmarks
🆕 190 new benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
🆕	WallTime	BM_RLE_Encode_SmallRuns[100]	N/A	1.8 µs	N/A
🆕	WallTime	BM_RLE_Encode_SmallRuns[100000]	N/A	1.6 ms	N/A
🆕	WallTime	BM_RLE_Encode_SmallRuns[10000]	N/A	151.5 µs	N/A
🆕	WallTime	BM_RLE_Encode_SmallRuns[1000]	N/A	15.5 µs	N/A
🆕	WallTime	BM_RLE_Decode[100000]	N/A	286.6 µs	N/A
🆕	WallTime	BM_RLE_Encode_LargeRuns[10000]	N/A	20.5 µs	N/A
🆕	WallTime	BM_RLE_Decode[1000]	N/A	2.7 µs	N/A
🆕	WallTime	BM_RLE_Decode[100]	N/A	374.7 ns	N/A
🆕	WallTime	BM_RLE_Encode_LargeRuns[100]	N/A	212.1 ns	N/A
🆕	WallTime	BM_Vector_PushBack[1000]	N/A	3.7 µs	N/A
🆕	WallTime	BM_RLE_Encode_LargeRuns[1000]	N/A	2.2 µs	N/A
🆕	WallTime	BM_RLE_Decode[10000]	N/A	22.5 µs	N/A
🆕	WallTime	BM_Vector_PushBack[10]	N/A	284.1 ns	N/A
❌	WallTime	BM_StringCopy	11 ns	13.9 ns	-20.74%
🆕	WallTime	BM_Vector_PushBack[10000]	N/A	34.1 µs	N/A
🆕	WallTime	BM_Vector_Reserve[1000]	N/A	3.2 µs	N/A
🆕	WallTime	BM_RLE_Encode_LargeRuns[100000]	N/A	201.8 µs	N/A
🆕	WallTime	BM_Vector_PushBack[100]	N/A	744.5 ns	N/A
🆕	WallTime	BM_Vector_Reserve[100]	N/A	350.9 ns	N/A
🆕	WallTime	BM_Vector_Reserve[10]	N/A	66.8 ns	N/A
...	...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

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_{Comparing cod-1945-support-memory-profiling-for-c (ad31ee3) with main (660b1f9)}

[Copilot]

Pull request overview

This PR adds memory profiling support to the benchmarking framework by introducing a new "memory" mode alongside the existing "simulation" and "walltime" modes. The changes unify the preprocessor directives and add the necessary configuration and infrastructure for memory profiling.

Changes:

• Renamed CODSPEED_SIMULATION preprocessor macro to CODSPEED_ANALYSIS to better represent both simulation and memory profiling modes
• Added "memory" as a new valid mode in CMake and Bazel build configurations
• Removed warmup execution logic from simulation mode to reduce flakiness
• Added memory benchmark examples demonstrating various allocation patterns
• Updated CI workflows to test the new memory profiling mode with memtrack CLI installation

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
google_benchmark/src/benchmark_runner.cc	Updated preprocessor directive from CODSPEED_SIMULATION to CODSPEED_ANALYSIS
google_benchmark/src/benchmark_api_internal.h	Updated preprocessor directives and removed warmup execution logic
google_benchmark/src/benchmark_api_internal.cc	Removed warmup repetition code from simulation mode
google_benchmark/src/benchmark.cc	Updated preprocessor directives and console output message
google_benchmark/include/benchmark/benchmark.h	Updated preprocessor directives throughout the State class
examples/google_benchmark_cmake/memory_bench.hpp	Added new memory profiling benchmark examples with RLE encoding/decoding and allocation patterns
examples/google_benchmark_cmake/main.cpp	Added include for new memory benchmark header
examples/google_benchmark_bazel/memory_bench.hpp	Added symlink to cmake memory benchmark file
core/instrument-hooks	Updated submodule commit reference
core/CMakeLists.txt	Added "memory" to allowed modes and updated preprocessor definitions
core/BUILD	Added memory_mode configuration and updated preprocessor defines
.github/workflows/ci.yml	Added memory mode to test matrix and memtrack CLI installation steps

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[GuillaumeLagrange]

@not-matthias the ci fails, can you re-request a review once fixed ? 🙏

[GuillaumeLagrange]

Olgtm, just wanted input from @art049 regarding the removal of the warmup run in analysis mode