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cirosantillicirosantilli
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opencl configure, cpp file to memory
1 parent 3ebe66f commit 5900ab3

5 files changed

Lines changed: 69 additions & 16 deletions

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‎cpp/common.hpp‎

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -80,18 +80,18 @@
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#include <cstring>
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// Keeps a list of functions that called it for testing purposes.
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static std::vector<std::string> callStack;
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static void printCallStack() {
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std::vector<std::string> callStack;
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void printCallStack() {
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std::cout << "callStack:" << std::endl;
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for (auto& s : callStack)
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std::cout << s << std::endl;
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std::cout << "END callStack" << std::endl;
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}
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// Global thread parameters.
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static const int NUM_THREADS = 1000;
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static const int NUM_ITERS = 1000;
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static const int NUM_OPS = NUM_THREADS * NUM_ITERS;
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const int NUM_THREADS = 1000;
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const int NUM_ITERS = 1000;
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const int NUM_OPS = NUM_THREADS * NUM_ITERS;
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// Misc.
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static bool odd(int i){ return (i % 2) == 1; }
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bool odd(int i){ return (i % 2) == 1; }

‎cpp/file_io.cpp‎

Lines changed: 2 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -205,20 +205,16 @@ int main() {
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std::string path("i_dont_exist.tmp");
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std::ifstream ifs(path);
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if (ifs) {
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assert(false);
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} else {
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try {
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throw std::ios_base::failure("Error: Could not write to file: " + path);
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//throw std::ios_base::failure("Error: Could not write to file: " + path);
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} catch (std::ios_base::failure e) {
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std::clog << e.what() << std::endl;
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}
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}
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}
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/
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{
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}
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// # ios::in: flag automatically set for ifstream, but not fstream
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//http://stackoverflow.com/questions/7463410/is-iosin-needed-for-ifstreams-opened-in-binary-mode
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}

‎cpp/file_to_memory.cpp‎

Lines changed: 57 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,57 @@
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/*
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http://stackoverflow.com/questions/539537/how-to-write-to-a-memory-buffer-with-a-file
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*/
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#include <cassert>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <ostream>
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#include <sstream>
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template <typename char_type>
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struct ostreambuf : public std::basic_streambuf<char_type, std::char_traits<char_type> > {
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ostreambuf(char_type* buffer, std::streamsize bufferLength) {
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this->setp(buffer, buffer + bufferLength);
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}
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};
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void write(std::ostream& os) {
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os << "abc";
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}
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int main() {
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/* To memory, in our own externally supplied buffer. */
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{
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char c[3];
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ostreambuf<char> buf(c, sizeof(c));
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std::ostream s(&buf);
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write(s);
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assert(memcmp(c, "abc", sizeof(c)) == 0);
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}
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/* To memory, but in a hidden buffer. */
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{
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std::stringstream s;
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write(s);
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assert(s.str() == "abc");
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}
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/* To file. */
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{
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std::ofstream s("a.tmp");
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write(s);
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s.close();
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}
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/* I think this is implementation defined.
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* pusetbuf calls basic_filebuf::setbuf(). */
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{
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char c[3];
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std::ofstream s;
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s.rdbuf()->pubsetbuf(c, sizeof c);
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write(s);
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s.close();
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//assert(memcmp(c, "abc", sizeof(c)) == 0);
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}
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}

‎opencl/configure‎

100644100755
File mode changed.

‎opengl/benchmarks.md‎

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Original file line numberDiff line numberDiff line change
@@ -2,13 +2,13 @@
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Since the raison d'etre of OpenGL is to have high performance, you will want to know how your application performs compared to some standardized benchmarks.
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- <http://askubuntu.com/questions/31913/how-to-perform-a-detailed-and-quick-3d-performance-test>
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<http://askubuntu.com/questions/31913/how-to-perform-a-detailed-and-quick-3d-performance-test>
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Free:
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- `glxgears`. `es2gears` from Ubuntu 16.04 `mesa-utils-extra` is an GLES2 implementation.
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- `glmark2`. Maintained by Linaro.
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- `phoronix`
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- `glxgears`. `es2gears` from Ubuntu 16.04 `mesa-utils-extra` is an GLES2 implementation. Disable vsync: <http://stackoverflow.com/questions/17196117/disable-vertical-sync-for-glxgears>
10+
- `glmark2`. Maintained by Linaro. TODO how is the score calculated? <https://github.com/glmark2/glmark2/issues/31>
11+
- `phoronix-test-suite`. Usage: <http://askubuntu.com/questions/31913/how-to-perform-a-detailed-and-quick-3d-performance-test/820264#820264>
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Non free:
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