maxim/gpio-reader
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

define us for expect value

Browse Source
This commit is contained in:
mstroh76
2025-01-11 13:09:22 +01:00
parent 6aa7807e28
commit f3231d9307
1 changed files with 73 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

150
wiringPi/test/wiringpi_test7_bench.c
View File

@@ -11,17 +11,18 @@
int ToggleValue = 240000000;
float fExpectTimedigitalWrite = 1/10;
float fExpectTimedigitalRead = 1/5;
float fExpectTimepinMode = 1/4;
float fWriteReadDelayFactor = 1.0;
float fWriteReadFactor = 2.0;
float fExpectTimedigitalWrite = 0.1;
float fExpectTimedigitalRead = 0.1;
float fExpectTimepinMode = 0.1;
float fWriteReadDelayFactor = 1.0;
float fWriteReadFactor = 1.0;
float fPi4ExpectTimedigitalWrite = 0.020;
int GPIO = 19;
int GPIOIN = 26;
int RaspberryPiModel = -1;
void ReportElapedTime(const char* msg, int multiop, const float fExpectTime, struct timeval t1, struct timeval t2) {
double ReportElapedTime(const char* msg, int multiop, const float fExpectTime, struct timeval t1, struct timeval t2) {
double elapsedTime, fTimePerOperation, fFreq;
elapsedTime = (t2.tv_sec-t1.tv_sec)+(t2.tv_usec-t1.tv_usec)/1000000.0;
@@ -29,7 +30,9 @@ void ReportElapedTime(const char* msg, int multiop, const float fExpectTime, str
fFreq = 1.0f/(fTimePerOperation*2); //ToggleValue/elapsedTime/1000000.0;
printf(" % 9d took %.3f s, Time per operation %.3f us (toggle Freq %.3f MHz) \n",
ToggleValue, elapsedTime, fTimePerOperation, fFreq);
CheckSameFloat(msg, fTimePerOperation, fExpectTime, fExpectTime*0.2f);
CheckSameFloat(msg, fTimePerOperation, fExpectTime, fExpectTime*0.2f);
return fTimePerOperation;
}
@@ -49,94 +52,87 @@ int main (void) {
GPIOIN = 24;
}
switch(RaspberryPiModel) {
case PI_MODEL_A:
case PI_MODEL_B: //ARM=800MHz: 3.8/1.5
case PI_MODEL_BP:
case PI_MODEL_AP:
case PI_MODEL_CM:
ToggleValue /= 7;
fExpectTimedigitalWrite = 1/(3.8*2); //MHz;
fWriteReadFactor = 1.3;
fExpectTimedigitalRead = fExpectTimedigitalWrite*fWriteReadFactor;
fExpectTimepinMode = 1/(1.5*2);
break;
case PI_MODEL_ZERO:
case PI_MODEL_ZERO_W: //ARM=1000MHz: 4.8/2.0
ToggleValue /= 5;
fExpectTimedigitalWrite = 1/(4.8*2); //MHz;
fExpectTimedigitalRead = fExpectTimedigitalWrite*fWriteReadFactor;
fExpectTimepinMode = 1/(2.0*2);
break;
case PI_MODEL_2:
ToggleValue /= 4;
break;
case PI_MODEL_3B:
case PI_MODEL_CM3:
case PI_MODEL_3BP:
case PI_MODEL_3AP:
case PI_MODEL_CM3P:
case PI_MODEL_ZERO_2W:
ToggleValue /= 2;
break;
case PI_MODEL_4B:
case PI_MODEL_400:
case PI_MODEL_CM4:
case PI_MODEL_CM4S:
ToggleValue = ToggleValue;
fExpectTimedigitalWrite = 1/(2*24.5); //MHz;
fExpectTimedigitalRead = fExpectTimedigitalWrite*fWriteReadFactor;
fExpectTimepinMode = 1/(2*4.1);
fWriteReadDelayFactor = 1.77;
break;
case PI_MODEL_5:
ToggleValue = ToggleValue*0.8;
fExpectTimedigitalWrite = 1/(2*20.0); //MHz;
fWriteReadFactor = 13;
fExpectTimedigitalRead = fExpectTimedigitalWrite*fWriteReadFactor;
fExpectTimepinMode = 1/(2*2.5);
fWriteReadDelayFactor = 3.2;
break;
}
printf("WiringPi GPIO speed test program (using GPIO %d) and toggle %d times\n", GPIO, ToggleValue);
printf(" testing digital Wirte and pinMode\n");
switch(RaspberryPiModel) {
case PI_MODEL_A:
case PI_MODEL_B: //ARM=800MHz
case PI_MODEL_BP:
case PI_MODEL_AP:
case PI_MODEL_CM:
//ToggleValue /= 7;
fExpectTimedigitalWrite = 0.132; //us;
fExpectTimedigitalRead = 0.171; //us
fExpectTimepinMode = 0.334; //us
break;
case PI_MODEL_ZERO:
case PI_MODEL_ZERO_W: //ARM=1000MHz
//ToggleValue /= 5;
fExpectTimedigitalWrite = 0.104; //us;
fExpectTimedigitalRead = 0.135; //us
fExpectTimepinMode = 0.250; //us
break;
case PI_MODEL_2:
ToggleValue /= 4;
break;
case PI_MODEL_3B:
case PI_MODEL_CM3:
case PI_MODEL_3BP:
case PI_MODEL_3AP:
case PI_MODEL_CM3P:
case PI_MODEL_ZERO_2W:
ToggleValue /= 2;
break;
case PI_MODEL_4B: //ARM=1500MHz
case PI_MODEL_400:
case PI_MODEL_CM4:
case PI_MODEL_CM4S:
//ToggleValue = ToggleValue;
fExpectTimedigitalWrite = 0.020; //us
fExpectTimedigitalRead = 0.038; //us
fExpectTimepinMode = 0.121; //us
fWriteReadDelayFactor = 1.86;
break;
case PI_MODEL_5:
//ToggleValue = ToggleValue*0.8;
fExpectTimedigitalWrite = 0.025; //us
fExpectTimedigitalRead = 0.323; //us
fExpectTimepinMode = 0.200; //us
fWriteReadDelayFactor = 3.2;
break;
}
fWriteReadFactor = fExpectTimedigitalRead/fExpectTimedigitalWrite;
ToggleValue /= (fExpectTimedigitalWrite/fPi4ExpectTimedigitalWrite);
printf("WiringPi GPIO operation time test program (using GPIO %d/%d)\n", GPIO, GPIOIN);
pinMode(GPIO, OUTPUT);
printf("% 3d million times digitalWrite ...\n", ToggleValue/1000000);
printf("\n% 3d million times digitalWrite ...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
digitalWrite(GPIO, HIGH);
digitalWrite(GPIO, LOW);
}
gettimeofday(&t2, NULL);
ReportElapedTime("digitalWrite", 2, fExpectTimedigitalWrite, t1, t2);
double OpTimeWrite = ReportElapedTime("digitalWrite", 2, fExpectTimedigitalWrite, t1, t2);
digitalWrite(GPIO, LOW);
pinMode(GPIOIN, INPUT);
ToggleValue /=(fExpectTimedigitalRead/fExpectTimedigitalWrite);
printf("\n");
printf("% 3d million times digitalRead ...\n", ToggleValue/1000000);
printf("\n% 3d million times digitalRead ...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
digitalRead(GPIOIN);
digitalRead(GPIOIN);
}
gettimeofday(&t2, NULL);
ReportElapedTime("digitalRead", 2, fExpectTimedigitalRead, t1, t2);
double OpTimeRead = ReportElapedTime("digitalRead", 2, fExpectTimedigitalRead, t1, t2);
if (RaspberryPiModel!=PI_MODEL_5) {
ToggleValue /= 4;
} else {
ToggleValue *= 1.5;
}
printf("\n");
printf("% 3d million times pinMode...\n", ToggleValue/1000000);
printf("\n% 3d million times pinMode...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
pinMode(GPIO, OUTPUT);
@@ -145,8 +141,7 @@ int main (void) {
gettimeofday(&t2, NULL);
ReportElapedTime("pinMode", 2, fExpectTimepinMode, t1, t2);
printf("\n");
printf("Toggle % 3d million times pinMode and digitalWrite ..\n", ToggleValue/1000000);
printf("\nToggle % 3d million times pinMode and digitalWrite ..\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
pinMode(GPIO, OUTPUT);
@@ -164,7 +159,7 @@ int main (void) {
}
printf("\n");
pinMode(GPIO, OUTPUT);
printf("Toggle % 3d million times digitalRead and digitalWrite ..\n", ToggleValue/1000000);
printf("\nToggle % 3d million times digitalRead and digitalWrite ..\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
digitalWrite(GPIO, HIGH);
@@ -173,14 +168,15 @@ int main (void) {
digitalRead(GPIOIN);
}
gettimeofday(&t2, NULL);
ReportElapedTime("digitalRead and digitalWrite", 2, fExpectTimedigitalWrite+fExpectTimedigitalRead*fWriteReadDelayFactor, t1, t2);
double elapsedTime = (t2.tv_sec-t1.tv_sec)+(t2.tv_usec-t1.tv_usec)/1000000.0;
double fTimePerOperation = elapsedTime*1000000.0/ToggleValue/2;
CheckSameFloat("Write <=> Read delay factor", fTimePerOperation/(fExpectTimedigitalWrite+fExpectTimedigitalRead), fWriteReadDelayFactor, 0.2);
double fTimePerOperation = ReportElapedTime("digitalRead and digitalWrite", 2, (fExpectTimedigitalWrite+fExpectTimedigitalRead)*fWriteReadDelayFactor, t1, t2);
printf("\n");
CheckSameFloat("digitalWrite vs. digitalRead factor", OpTimeRead/OpTimeWrite, fWriteReadFactor, 0.3);
CheckSameFloat("digitalWrite and digitalRead alternating factor", fTimePerOperation/(fExpectTimedigitalWrite+fExpectTimedigitalRead), fWriteReadDelayFactor, 0.2);
if (RaspberryPiModel==PI_MODEL_5) {
printf("\nRasperry Pi 5:\n");
printf(" * digitalRead has very slow speed, much slower then digitalWrite, factor %.1f (typical Pi4 ~2.0)\n", fWriteReadFactor);
printf(" * Toggle read/write operation has slow speed, factor %.2f (typical Pi4 ~1.77) to single operation time\n", fWriteReadDelayFactor);
printf(" * Alternating read/write operation has slow speed, factor %.2f (typical Pi4 ~1.77) to single operation time\n", fWriteReadDelayFactor);
}
digitalWrite(GPIO, LOW);