void NotificationTimer(ref long timerIntervalInMicroSec,
ref long ignoreEventIfLateBy,
ref bool stopTimer)
{
int timerCount = 0;
long nextNotification = 0;
MicroStopwatch microStopwatch = new MicroStopwatch();
microStopwatch.Start();
while (!stopTimer)
{
long callbackFunctionExecutionTime =
microStopwatch.ElapsedMicroseconds - nextNotification;
long timerIntervalInMicroSecCurrent =
System.Threading.Interlocked.Read(ref timerIntervalInMicroSec);
long ignoreEventIfLateByCurrent =
System.Threading.Interlocked.Read(ref ignoreEventIfLateBy);
nextNotification += timerIntervalInMicroSecCurrent;
timerCount++;
long elapsedMicroseconds = 0;
// https://www.codeproject.com/Articles/98346/Microsecond-and-Millisecond-NET-Timer?msg=5288003#xx5288003xx
//while ( (elapsedMicroseconds = microStopwatch.ElapsedMicroseconds)
// < nextNotification)
//{
// System.Threading.Thread.SpinWait(10);
//}
int wms = (int)timerIntervalInMicroSec / 1000;
wms = wms - (int)(wms * 0.01);
_threadTimer.Join(wms);
while ((elapsedMicroseconds = microStopwatch.ElapsedMicroseconds) < nextNotification)
{
System.Threading.Thread.SpinWait(10);
}
long timerLateBy = elapsedMicroseconds - nextNotification;
if (timerLateBy >= ignoreEventIfLateByCurrent)
{
continue;
}
MicroTimerEventArgs microTimerEventArgs =
new MicroTimerEventArgs(timerCount,
elapsedMicroseconds,
timerLateBy,
callbackFunctionExecutionTime);
MicroTimerElapsed(this, microTimerEventArgs);
}
microStopwatch.Stop();
}
void NotificationTimer(ref long timerIntervalInMicroSec,
ref long ignoreEventIfLateBy,
ref bool stopTimer)
{
int timerCount = 0;
long nextNotification = 0;
MicroStopwatch microStopwatch = new MicroStopwatch();
microStopwatch.Start();
while (!stopTimer)
{
long callbackFunctionExecutionTime =
microStopwatch.ElapsedMicroseconds - nextNotification;
long timerIntervalInMicroSecCurrent =
System.Threading.Interlocked.Read(ref timerIntervalInMicroSec);
long ignoreEventIfLateByCurrent =
System.Threading.Interlocked.Read(ref ignoreEventIfLateBy);
nextNotification += timerIntervalInMicroSecCurrent;
timerCount++;
long elapsedMicroseconds = 0;
while ((elapsedMicroseconds = microStopwatch.ElapsedMicroseconds)
< nextNotification)
{
//System.Threading.Thread.SpinWait(10);
System.Threading.Thread.Sleep(1);
}
long timerLateBy = elapsedMicroseconds - nextNotification;
//if (timerLateBy >= ignoreEventIfLateByCurrent)
//{
// nextNotification += timerIntervalInMicroSecCurrent;
//}
//else
{
MicroTimerEventArgs microTimerEventArgs =
new MicroTimerEventArgs(timerCount,
elapsedMicroseconds,
timerLateBy,
callbackFunctionExecutionTime);
MicroTimerElapsed(this, microTimerEventArgs);
}
}
microStopwatch.Stop();
}
void NotificationTimer(long timerInterval,
long ignoreEventIfLateBy,
ref bool stopTimer)
{
int timerCount = 0;
long nextNotification = 0;
MicroStopwatch microStopwatch = new MicroStopwatch();
microStopwatch.Start();
while (!stopTimer)
{
long callbackFunctionExecutionTime =
microStopwatch.ElapsedMicroseconds - nextNotification;
nextNotification += timerInterval;
timerCount++;
long elapsedMicroseconds = 0;
while ((elapsedMicroseconds = microStopwatch.ElapsedMicroseconds)
< nextNotification)
{
System.Threading.Thread.SpinWait(10);
}
long timerLateBy = elapsedMicroseconds - (timerCount * timerInterval);
if (timerLateBy >= ignoreEventIfLateBy)
{
continue;
}
MicroTimerEventArgs microTimerEventArgs =
new MicroTimerEventArgs(timerCount,
elapsedMicroseconds,
timerLateBy,
callbackFunctionExecutionTime);
MicroTimerElapsed(this, microTimerEventArgs);
}
microStopwatch.Stop();
}
void NotificationTimer(ref long timerIntervalInMicroSec,
ref long ignoreEventIfLateBy,
ref bool stopTimer)
{
int timerCount = 0;
long nextNotification = 0;
MicroStopwatch microStopwatch = new MicroStopwatch();
microStopwatch.Start();
while (!stopTimer)
{
long callbackFunctionExecutionTime =
microStopwatch.ElapsedMicroseconds - nextNotification;
long timerIntervalInMicroSecCurrent =
System.Threading.Interlocked.Read(ref timerIntervalInMicroSec);
long ignoreEventIfLateByCurrent =
System.Threading.Interlocked.Read(ref ignoreEventIfLateBy);
nextNotification += timerIntervalInMicroSecCurrent;
timerCount++;
long elapsedMicroseconds = 0;
while ( (elapsedMicroseconds = microStopwatch.ElapsedMicroseconds)
< nextNotification)
{
System.Threading.Thread.SpinWait(10);
}
long timerLateBy = elapsedMicroseconds - nextNotification;
if (timerLateBy >= ignoreEventIfLateByCurrent)
{
continue;
}
MicroTimerEventArgs microTimerEventArgs =
new MicroTimerEventArgs(timerCount,
elapsedMicroseconds,
timerLateBy,
callbackFunctionExecutionTime);
MicroTimerElapsed(this, microTimerEventArgs);
}
microStopwatch.Stop();
}
private void _MainCycle()
{
MicroStopwatch mw = new MicroStopwatch();
int cycToGo = 0;
while (true)
{
mw.Start();
for (int i = 0; i < 4; i++)
{
HandleInterrupts();
if (cycToGo == 0)
{
cycToGo = Cpu.ExecuteOp() - 1;
} else {
cycToGo--;
}
Video.ModeClock++;
HandleVideo();
}
timer.Tick();
Audio.Tick();
while (mw.ElapsedMicroseconds == 0) ;
mw.Reset();
}
}
public MicroTimerStrategy()
{
mTimer = new MicroStopwatch();
}
static StreamWriter logWriter = new StreamWriter(logFile); // The logging stream
/*
* Program entry point
*/
static void Main(string[] args)
{
logWriter.AutoFlush = true;
// Get access to sql
string connectionString = "Data Source=tcp:172.30.100.116;\n;Initial Catalog=GlobalDeviceService;\nUser ID=octopus;Password=octopus";
SqlConnection cnn = new SqlConnection(connectionString);
cnn.Open();
// Load the queries
string[] graphqlQueries = get_queries(numGraphQLQueries, GraphQLFolder);
string[] sqlQueries = get_queries(numSQLQueries, SQLFolder);
// Process and time the queries for Graphql
do_logging_writeline("Beginning GraphQL Tests\n");
for (int i = 0; i < numGraphQLQueries && !String.IsNullOrEmpty(graphqlQueries[i]); i++)
{
// Do logging, start timer
string curQuery = graphqlQueries[i];
do_logging_writeline("Current Query: ");
do_logging_write(curQuery + "\n\n");
MicroLibrary.MicroStopwatch timer = new MicroLibrary.MicroStopwatch();
// Get the result into the cache
do_graphql_query_caching(curQuery).GetAwaiter().GetResult();
// Time the query (cached) and sum the execution times
long cachedTime = 0;
for (int j = 0; j < numExecutions; j++)
{
// Time the call and aggregate
timer.Restart();
do_graphql_query_caching(curQuery).GetAwaiter().GetResult();
timer.Stop();
cachedTime += timer.ElapsedMicroseconds;
}
// Cleanup
db.KeyDelete(curQuery);
// Time the query (uncached) and sum the execution times
long uncachedTime = 0;
for (int j = 0; j < numExecutions; j++)
{
// Time the call and aggregate
timer.Restart();
do_graphql_query_no_caching(curQuery).GetAwaiter().GetResult();
timer.Stop();
uncachedTime += timer.ElapsedMicroseconds;
}
do_logging_writeline("Uncached execution time (Average of " + numExecutions.ToString() + " runs): " + (uncachedTime / numExecutions).ToString() + "µs");
do_logging_writeline("Cached execution time (Average of " + numExecutions.ToString() + " runs): " + (cachedTime / numExecutions).ToString() + "µs");
do_logging_writeline(((double)(uncachedTime / numExecutions) / (double)(cachedTime / numExecutions)).ToString() + " times faster.\n");
//do_logging_writeline("Size of result set: " + result.Length.ToString() + "\n");
}
// Process and time the queries for SQL Server
do_logging_writeline("\nBeginning SQL Tests\n");
for (int i = 0; i < numSQLQueries && !String.IsNullOrEmpty(sqlQueries[i]); i++)
{
//Do logging, start timer
string curQuery = sqlQueries[i];
do_logging_writeline("Current Query: ");
do_logging_write(curQuery + "\n\n");
MicroLibrary.MicroStopwatch timer = new MicroLibrary.MicroStopwatch();
// Get the result into the cache
do_sql_query_caching(curQuery, cnn).GetAwaiter().GetResult();
// Time the query (cached) and sum the execution times
long cachedTime = 0;
for (int j = 0; j < numExecutions; j++)
{
// Time the call and aggregate
timer.Restart();
do_sql_query_caching(curQuery, cnn).GetAwaiter().GetResult();
timer.Stop();
cachedTime += timer.ElapsedMicroseconds;
}
// Cleanup
db.KeyDelete(curQuery);
// Time the query (uncached) and sum the execution times
long uncachedTime = 0;
for (int j = 0; j < numExecutions; j++)
{
// Time the call and aggregate
timer.Restart();
do_sql_query_no_caching(curQuery, cnn).GetAwaiter().GetResult();
timer.Stop();
uncachedTime += timer.ElapsedMicroseconds;
}
do_logging_writeline("Uncached execution time (Average of " + numExecutions.ToString() + " runs): " + (uncachedTime / numExecutions).ToString() + "µs");
do_logging_writeline("Cached execution time (Average of " + numExecutions.ToString() + " runs): " + (cachedTime / numExecutions).ToString() + "µs");
do_logging_writeline(((double)(uncachedTime / numExecutions) / (double)(cachedTime / numExecutions)).ToString() + " times faster.\n");
//do_logging_writeline("Size of result set: " + result.Length.ToString() + "\n");
}
// cleanup
cnn.Close();
}