void deallocate_start_memory() {
tlb_shootdown(get_active_page(), 0, 0x200000);
memset((void*)physical_to_virtual((uintptr_t)get_active_page()), 0, 256*sizeof(uintptr_t));
tlb_shootdown_end();
}
void payload_benchmark()
{
/*
* count and collect all processors (collective barrier)
*/
if (CPU_ID == 0) smm_deactivate(); // ...and (try to) deactivate SMM
/*
* Memory allocation
*/
init_buffers();
barrier(&global_barrier);
/*
* Benchmarks
*/
bench_hourglass();
bench_hourglass_worker(p_contender);
bench_hourglass_hyperthread();
barrier(&global_barrier);
bench_worker(p_buffer, p_contender);
bench_worker_cut(p_buffer, p_contender, 16*KB);
if (CPU_ID == 0) {
heap_reconfig(p_buffer, buffer_size, 0);
heap_reconfig(p_contender, contender_size, MM_CACHE_DISABLE);
barrier(&global_barrier);
printf("======== Benchmark: WB / Load: CD ===================================\n");
} else {
barrier(&global_barrier);
tlb_shootdown(p_buffer, buffer_size);
tlb_shootdown(p_contender, contender_size);
}
barrier(&global_barrier);
bench_worker_cut(p_buffer, p_contender, 16*KB);
bench_worker_cut(p_buffer, p_contender, 128*KB);
if (CPU_ID == 0) {
heap_reconfig(p_buffer, buffer_size, 0);
heap_reconfig(p_contender, contender_size, MM_WRITE_THROUGH);
barrier(&global_barrier);
printf("======== Benchmark: WB / Load: WT ===================================\n");
} else {
barrier(&global_barrier);
tlb_shootdown(p_buffer, buffer_size);
tlb_shootdown(p_contender, contender_size);
}
barrier(&global_barrier);
bench_worker_cut(p_buffer, p_contender, 16*KB);
bench_worker_cut(p_buffer, p_contender, 128*KB);
barrier(&global_barrier);
bench_mem(p_buffer, p_contender);
bench_rangestride(p_buffer);
}
