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teflon/tests: Read model data with mmap, for speed

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It was being a bit uncomfortable testing big models otherwise.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34627>
This commit is contained in:
Tomeu Vizoso 2025-04-15 18:05:53 +02:00 • committed by Marge Bot
parent baafa9172a
commit 113143a470
1 changed files with 8 additions and 4 deletions
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12
src/gallium/targets/teflon/test_teflon.cpp
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@ -5,6 +5,7 @@
#include <cstdio>
#include <fcntl.h>
#include <sys/mman.h>
#include <filesystem>
#include <fstream>
#include <gtest/gtest.h>
@ -176,10 +177,13 @@ test_model_file(std::string file_name, unsigned tolerance, bool use_cache)
set_seed(4);
std::ifstream model_file(file_name, std::ios::binary);
std::vector<uint8_t> buffer((std::istreambuf_iterator<char>(model_file)),
std::istreambuf_iterator<char>());
test_model(buffer.data(), buffer.size(), cache_dir.str(), tolerance);
struct stat sb;
int model_fd = open(file_name.c_str(), O_RDONLY);
fstat(model_fd, &sb);
void *model_data = mmap(0, sb.st_size, PROT_READ, MAP_PRIVATE, model_fd, 0);
test_model(model_data, sb.st_size, cache_dir.str(), tolerance);
munmap(model_data, sb.st_size);
close(model_fd);
}
void