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Improving precision of LinkWireless_demo_profiler

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This commit is contained in:
Rodrigo Alfonso
2023-11-18 23:03:27 -03:00
parent 78003e3e7c
commit 2c57b34b3b
2 changed files with 66 additions and 13 deletions
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12
examples/LinkWireless_demo/src/main.cpp
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@@ -398,10 +398,22 @@ void messageLoop() {
output += "\n_onVBlank: " + std::to_string(linkWireless->lastVBlankTime);
output += "\n_onSerial: " + std::to_string(linkWireless->lastSerialTime);
output += "\n_onTimer: " + std::to_string(linkWireless->lastTimerTime);
if (asyncACK)
output += " | " + std::to_string(linkWireless->lastACKTimerTime);
output +=
"\n_serialIRQs: " + std::to_string(linkWireless->lastFrameSerialIRQs);
output +=
"\n_timerIRQs: " + std::to_string(linkWireless->lastFrameTimerIRQs);
if (asyncACK)
output += " | " + std::to_string(linkWireless->lastFrameACKTimerIRQs);
output +=
"\n_ms: " +
std::to_string(linkWireless->toMs(
linkWireless->lastVBlankTime +
linkWireless->lastSerialTime * linkWireless->lastFrameSerialIRQs +
linkWireless->lastTimerTime * linkWireless->lastFrameTimerIRQs +
linkWireless->lastACKTimerTime *
linkWireless->lastFrameACKTimerIRQs));
#endif
#ifndef PROFILING_ENABLED
if (lostPackets > 0) {

67
lib/LinkWireless.hpp
View File

@@ -146,13 +146,16 @@ class LinkWireless {
// std::function<void(std::string str)> debug;
// #define PROFILING_ENABLED
#ifdef PROFILING_ENABLED
u32 lastVBlankTime;
u32 lastSerialTime;
u32 lastTimerTime;
u32 lastFrameSerialIRQs;
u32 lastFrameTimerIRQs;
u32 serialIRQCount;
u32 timerIRQCount;
u32 lastVBlankTime = 0;
u32 lastSerialTime = 0;
u32 lastTimerTime = 0;
u32 lastACKTimerTime = 0;
u32 lastFrameSerialIRQs = 0;
u32 lastFrameTimerIRQs = 0;
u32 lastFrameACKTimerIRQs = 0;
u32 serialIRQCount = 0;
u32 timerIRQCount = 0;
u32 ackTimerIRQCount = 0;
#endif
enum State {
@@ -518,7 +521,7 @@ class LinkWireless {
return;
#ifdef PROFILING_ENABLED
u32 start = REG_VCOUNT;
profileStart();
#endif
if (!isSessionActive()) {
@@ -536,11 +539,13 @@ class LinkWireless {
copyState();
#ifdef PROFILING_ENABLED
lastVBlankTime = std::max((int)REG_VCOUNT - (int)start, 0);
lastVBlankTime = profileStop();
lastFrameSerialIRQs = serialIRQCount;
lastFrameTimerIRQs = timerIRQCount;
lastFrameACKTimerIRQs = ackTimerIRQCount;
serialIRQCount = 0;
timerIRQCount = 0;
ackTimerIRQCount = 0;
#endif
}
@@ -549,7 +554,7 @@ class LinkWireless {
return;
#ifdef PROFILING_ENABLED
u32 start = REG_VCOUNT;
profileStart();
#endif
linkSPI->_onSerial(true);
@@ -593,7 +598,7 @@ class LinkWireless {
}
#ifdef PROFILING_ENABLED
lastSerialTime = std::max((int)REG_VCOUNT - (int)start, 0);
lastSerialTime = profileStop();
serialIRQCount++;
#endif
}
@@ -603,7 +608,7 @@ class LinkWireless {
return;
#ifdef PROFILING_ENABLED
u32 start = REG_VCOUNT;
profileStart();
#endif
if (!isSessionActive())
@@ -621,7 +626,7 @@ class LinkWireless {
copyState();
#ifdef PROFILING_ENABLED
lastTimerTime = std::max((int)REG_VCOUNT - (int)start, 0);
lastTimerTime = profileStop();
timerIRQCount++;
#endif
}
@@ -641,6 +646,10 @@ class LinkWireless {
if (linkSPI->_isSIHigh())
return;
#ifdef PROFILING_ENABLED
profileStart();
#endif
linkSPI->_setSOLow();
asyncCommand.ackStep = AsyncCommand::ACKStep::READY;
stopACKTimer();
@@ -651,6 +660,11 @@ class LinkWireless {
if (asyncCommand.state == AsyncCommand::State::COMPLETED)
processAsyncCommand();
}
#ifdef PROFILING_ENABLED
lastACKTimerTime = profileStop();
ackTimerIRQCount++;
#endif
}
}
@@ -1612,6 +1626,33 @@ class LinkWireless {
u16 lsB32(u32 value) { return value & 0xffff; }
u8 msB16(u16 value) { return value >> 8; }
u8 lsB16(u16 value) { return value & 0xff; }
#ifdef PROFILING_ENABLED
void profileStart() {
REG_TM1CNT_L = 0;
REG_TM2CNT_L = 0;
REG_TM1CNT_H = 0;
REG_TM2CNT_H = 0;
REG_TM2CNT_H = TM_ENABLE | TM_CASCADE;
REG_TM1CNT_H = TM_ENABLE | TM_FREQ_1;
}
u32 profileStop() {
REG_TM1CNT_H = 0;
REG_TM2CNT_H = 0;
return (REG_TM1CNT_L | (REG_TM2CNT_L << 16));
}
public:
u32 toMs(u32 cycles) {
// CPU Frequency * time per frame = cycles per frame
// 16780000 * (1/60) ~= 279666
return (cycles * 1000) / (279666 * 60);
}
#endif
};
extern LinkWireless* linkWireless;