| #!/bin/bash | |
| # | |
| # Usage: runperf ./my-benchmark-binary | |
| # | |
| # Script to run a benchmark / performance test in decent conditions. Based on: | |
| # - https://www.llvm.org/docs/Benchmarking.html | |
| # - "Performance Analysis and Tuning on Modern CPU" by Denis Bakhvalov, Appendix A. | |
| # - https://github.com/andikleen/pmu-tools | |
| # | |
| # Note that this doesn't do any actual benchmarking, your binary must be able to do that all by itself. |
Minimal D3D11 reference implementation: An uncluttered Direct3D 11 setup + basic rendering primer and API familiarizer. Complete, runnable Windows application contained in a single function and laid out in a linear, step-by-step fashion that should be easy to follow from the code alone. ~200 LOC. No modern C++ / OOP or (other) obscuring cruft. View on YouTube
| =========================== | |
| SID FILE FORMAT DESCRIPTION | |
| =========================== | |
| AUTHORS: | |
| Michael Schwendt (PSID v1 and v2) | |
| Simon White (PSID v2NG, RSID) | |
| Dag Lem (PSID v2NG) | |
| Wilfred Bos (PSID v3, RSID v3, PSID v4, RSID v4) |
| #include "mu.h" | |
| #define _CRT_SECURE_NO_WARNINGS | |
| #include <malloc.h> | |
| #define _USE_MATH_DEFINES | |
| #include <math.h> | |
| #define _NO_CRT_STDIO_INLINE | |
| #include <stdio.h> | |
| #include <stdarg.h> | |
| #define NO_STRICT |
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
