add process tests

2025-08-13 14:09:18 +03:00
parent d9719a7a50
commit da30ae558f
8 changed files with 204 additions and 108 deletions
--- a/utils/system_calib/CMakeLists.txt
+++ b/utils/system_calib/CMakeLists.txt
@@ -0,0 +1,7 @@
+list(APPEND PIP_UTILS_LIST "pip_system_calib")
+set(PIP_UTILS_LIST ${PIP_UTILS_LIST} PARENT_SCOPE)
+add_executable(pip_system_calib "main.cpp")
+target_link_libraries(pip_system_calib pip)
+if (DEFINED LIB)
+	install(TARGETS pip_system_calib DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
+endif ()
--- a/utils/system_calib/main.cpp
+++ b/utils/system_calib/main.cpp
@@ -0,0 +1,107 @@
+/*
+    PIP - Platform Independent Primitives
+    System tests program
+    Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "piconfig.h"
+#include "pisystemtests.h"
+#include "pisystemtime.h"
+#ifdef CC_GCC
+#  include <unistd.h>
+#endif
+
+int main(int argc, char * argv[]) {
+#if defined(WINDOWS) || defined(MAC_OS)
+	piCout << "This program is useless for Windows";
+	return 0;
+#else
+	if (getuid() != 0) {
+		piCout << "You should run this program as root!";
+		return 0;
+	}
+	PIConfig conf(
+#  ifndef WINDOWS
+		"/etc/pip.conf"
+#  else
+		"pip.conf"
+#  endif
+	);
+	PITimeMeasurer timer, tm;
+	timespec ts;
+	long stc = 0;
+	double st;
+	llong sts = 0;
+	clock_getres(CLOCK_REALTIME, &ts);
+	stc = long(ts.tv_sec) * 1000000000l + long(ts.tv_nsec);
+	conf.setValue("time_resolution_ns", stc);
+	piCout << "Timer resolution is " << stc << " ns";
+
+	piCout << "\"PITimer.elapsed_*\" test ... ";
+	stc        = 0;
+	ts.tv_sec  = 0;
+	ts.tv_nsec = 1000;
+	PIVector<double> times;
+	times.resize(8192);
+	tm.reset();
+	PISystemTests::time_elapsed_ns = 0;
+	while (tm.elapsed_s() < 3.) {
+		for (int i = 0; i < times.size_s(); ++i) {
+			timer.reset();
+			times[i] = timer.elapsed_m();
+			times[i] = timer.elapsed_s();
+			times[i] = timer.elapsed_u();
+		}
+		st = 0;
+		for (int i = 0; i < times.size_s(); ++i)
+			st += times[i];
+		// cout << times[0] << endl;
+		// cout << st / times.size_s() / 3. * 1000. << endl;
+		sts += piRoundd(st / times.size_s() / 3. * 1000.);
+		// cout << sts << endl;
+		stc++;
+	}
+	sts /= stc;
+	conf.setValue("time_elapsed_ns", long(sts));
+	piCout << "ok, cost" << sts << "ns, average in" << stc << "series (" << (stc * 3 * times.size_s()) << "executes)";
+
+	piCout << "\"usleep\" offset test ... ";
+	PISystemTests::time_elapsed_ns = sts;
+	tm.reset();
+	stc = 0;
+	sts = 0;
+	times.resize(128);
+	while (tm.elapsed_s() < 3.) {
+		for (int i = 0; i < times.size_s(); ++i) {
+			timer.reset();
+			usleep(1000);
+			times[i] = timer.elapsed_u();
+		}
+		st = 0;
+		for (int i = 0; i < times.size_s(); ++i)
+			st += times[i] - 1000;
+		// cout << times[0] << endl;
+		// cout << st / times.size_s() / 3. * 1000. << endl;
+		sts += piRoundd(st / times.size_s());
+		// cout << sts << endl;
+		stc++;
+	}
+	sts /= stc;
+	conf.setValue("usleep_offset_us", long(sts));
+	piCout << "ok," << sts << "us, average in" << stc << "series (" << (stc * times.size_s()) << "executes)";
+	return 0;
+#endif
+};