From 04333cdc8d6a3c8e4a11835371e8ad13adf3f7f0 Mon Sep 17 00:00:00 2001 From: Glenn Kasten Date: Tue, 17 Feb 2015 16:23:03 -0800 Subject: Pull out FastCaptureDumpState and FastMixerDumpState Change-Id: I8e44dbfe02338622eb69193b234743b50f0dd79f --- services/audioflinger/FastMixer.cpp | 219 ------------------------------------ 1 file changed, 219 deletions(-) (limited to 'services/audioflinger/FastMixer.cpp') diff --git a/services/audioflinger/FastMixer.cpp b/services/audioflinger/FastMixer.cpp index 141a79e..8f05ef0 100644 --- a/services/audioflinger/FastMixer.cpp +++ b/services/audioflinger/FastMixer.cpp @@ -456,223 +456,4 @@ void FastMixer::onWork() } } -FastMixerDumpState::FastMixerDumpState( -#ifdef FAST_MIXER_STATISTICS - uint32_t samplingN -#endif - ) : FastThreadDumpState(), - mWriteSequence(0), mFramesWritten(0), - mNumTracks(0), mWriteErrors(0), - mSampleRate(0), mFrameCount(0), - mTrackMask(0) -{ -#ifdef FAST_MIXER_STATISTICS - increaseSamplingN(samplingN); -#endif -} - -#ifdef FAST_MIXER_STATISTICS -void FastMixerDumpState::increaseSamplingN(uint32_t samplingN) -{ - if (samplingN <= mSamplingN || samplingN > kSamplingN || roundup(samplingN) != samplingN) { - return; - } - uint32_t additional = samplingN - mSamplingN; - // sample arrays aren't accessed atomically with respect to the bounds, - // so clearing reduces chance for dumpsys to read random uninitialized samples - memset(&mMonotonicNs[mSamplingN], 0, sizeof(mMonotonicNs[0]) * additional); - memset(&mLoadNs[mSamplingN], 0, sizeof(mLoadNs[0]) * additional); -#ifdef CPU_FREQUENCY_STATISTICS - memset(&mCpukHz[mSamplingN], 0, sizeof(mCpukHz[0]) * additional); -#endif - mSamplingN = samplingN; -} -#endif - -FastMixerDumpState::~FastMixerDumpState() -{ -} - -// helper function called by qsort() -static int compare_uint32_t(const void *pa, const void *pb) -{ - uint32_t a = *(const uint32_t *)pa; - uint32_t b = *(const uint32_t *)pb; - if (a < b) { - return -1; - } else if (a > b) { - return 1; - } else { - return 0; - } -} - -void FastMixerDumpState::dump(int fd) const -{ - if (mCommand == FastMixerState::INITIAL) { - dprintf(fd, " FastMixer not initialized\n"); - return; - } -#define COMMAND_MAX 32 - char string[COMMAND_MAX]; - switch (mCommand) { - case FastMixerState::INITIAL: - strcpy(string, "INITIAL"); - break; - case FastMixerState::HOT_IDLE: - strcpy(string, "HOT_IDLE"); - break; - case FastMixerState::COLD_IDLE: - strcpy(string, "COLD_IDLE"); - break; - case FastMixerState::EXIT: - strcpy(string, "EXIT"); - break; - case FastMixerState::MIX: - strcpy(string, "MIX"); - break; - case FastMixerState::WRITE: - strcpy(string, "WRITE"); - break; - case FastMixerState::MIX_WRITE: - strcpy(string, "MIX_WRITE"); - break; - default: - snprintf(string, COMMAND_MAX, "%d", mCommand); - break; - } - double measuredWarmupMs = (mMeasuredWarmupTs.tv_sec * 1000.0) + - (mMeasuredWarmupTs.tv_nsec / 1000000.0); - double mixPeriodSec = (double) mFrameCount / (double) mSampleRate; - dprintf(fd, " FastMixer command=%s writeSequence=%u framesWritten=%u\n" - " numTracks=%u writeErrors=%u underruns=%u overruns=%u\n" - " sampleRate=%u frameCount=%zu measuredWarmup=%.3g ms, warmupCycles=%u\n" - " mixPeriod=%.2f ms\n", - string, mWriteSequence, mFramesWritten, - mNumTracks, mWriteErrors, mUnderruns, mOverruns, - mSampleRate, mFrameCount, measuredWarmupMs, mWarmupCycles, - mixPeriodSec * 1e3); -#ifdef FAST_MIXER_STATISTICS - // find the interval of valid samples - uint32_t bounds = mBounds; - uint32_t newestOpen = bounds & 0xFFFF; - uint32_t oldestClosed = bounds >> 16; - uint32_t n = (newestOpen - oldestClosed) & 0xFFFF; - if (n > mSamplingN) { - ALOGE("too many samples %u", n); - n = mSamplingN; - } - // statistics for monotonic (wall clock) time, thread raw CPU load in time, CPU clock frequency, - // and adjusted CPU load in MHz normalized for CPU clock frequency - CentralTendencyStatistics wall, loadNs; -#ifdef CPU_FREQUENCY_STATISTICS - CentralTendencyStatistics kHz, loadMHz; - uint32_t previousCpukHz = 0; -#endif - // Assuming a normal distribution for cycle times, three standard deviations on either side of - // the mean account for 99.73% of the population. So if we take each tail to be 1/1000 of the - // sample set, we get 99.8% combined, or close to three standard deviations. - static const uint32_t kTailDenominator = 1000; - uint32_t *tail = n >= kTailDenominator ? new uint32_t[n] : NULL; - // loop over all the samples - for (uint32_t j = 0; j < n; ++j) { - size_t i = oldestClosed++ & (mSamplingN - 1); - uint32_t wallNs = mMonotonicNs[i]; - if (tail != NULL) { - tail[j] = wallNs; - } - wall.sample(wallNs); - uint32_t sampleLoadNs = mLoadNs[i]; - loadNs.sample(sampleLoadNs); -#ifdef CPU_FREQUENCY_STATISTICS - uint32_t sampleCpukHz = mCpukHz[i]; - // skip bad kHz samples - if ((sampleCpukHz & ~0xF) != 0) { - kHz.sample(sampleCpukHz >> 4); - if (sampleCpukHz == previousCpukHz) { - double megacycles = (double) sampleLoadNs * (double) (sampleCpukHz >> 4) * 1e-12; - double adjMHz = megacycles / mixPeriodSec; // _not_ wallNs * 1e9 - loadMHz.sample(adjMHz); - } - } - previousCpukHz = sampleCpukHz; -#endif - } - if (n) { - dprintf(fd, " Simple moving statistics over last %.1f seconds:\n", - wall.n() * mixPeriodSec); - dprintf(fd, " wall clock time in ms per mix cycle:\n" - " mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", - wall.mean()*1e-6, wall.minimum()*1e-6, wall.maximum()*1e-6, - wall.stddev()*1e-6); - dprintf(fd, " raw CPU load in us per mix cycle:\n" - " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", - loadNs.mean()*1e-3, loadNs.minimum()*1e-3, loadNs.maximum()*1e-3, - loadNs.stddev()*1e-3); - } else { - dprintf(fd, " No FastMixer statistics available currently\n"); - } -#ifdef CPU_FREQUENCY_STATISTICS - dprintf(fd, " CPU clock frequency in MHz:\n" - " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", - kHz.mean()*1e-3, kHz.minimum()*1e-3, kHz.maximum()*1e-3, kHz.stddev()*1e-3); - dprintf(fd, " adjusted CPU load in MHz (i.e. normalized for CPU clock frequency):\n" - " mean=%.1f min=%.1f max=%.1f stddev=%.1f\n", - loadMHz.mean(), loadMHz.minimum(), loadMHz.maximum(), loadMHz.stddev()); -#endif - if (tail != NULL) { - qsort(tail, n, sizeof(uint32_t), compare_uint32_t); - // assume same number of tail samples on each side, left and right - uint32_t count = n / kTailDenominator; - CentralTendencyStatistics left, right; - for (uint32_t i = 0; i < count; ++i) { - left.sample(tail[i]); - right.sample(tail[n - (i + 1)]); - } - dprintf(fd, " Distribution of mix cycle times in ms for the tails " - "(> ~3 stddev outliers):\n" - " left tail: mean=%.2f min=%.2f max=%.2f stddev=%.2f\n" - " right tail: mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", - left.mean()*1e-6, left.minimum()*1e-6, left.maximum()*1e-6, left.stddev()*1e-6, - right.mean()*1e-6, right.minimum()*1e-6, right.maximum()*1e-6, - right.stddev()*1e-6); - delete[] tail; - } -#endif - // The active track mask and track states are updated non-atomically. - // So if we relied on isActive to decide whether to display, - // then we might display an obsolete track or omit an active track. - // Instead we always display all tracks, with an indication - // of whether we think the track is active. - uint32_t trackMask = mTrackMask; - dprintf(fd, " Fast tracks: kMaxFastTracks=%u activeMask=%#x\n", - FastMixerState::kMaxFastTracks, trackMask); - dprintf(fd, " Index Active Full Partial Empty Recent Ready\n"); - for (uint32_t i = 0; i < FastMixerState::kMaxFastTracks; ++i, trackMask >>= 1) { - bool isActive = trackMask & 1; - const FastTrackDump *ftDump = &mTracks[i]; - const FastTrackUnderruns& underruns = ftDump->mUnderruns; - const char *mostRecent; - switch (underruns.mBitFields.mMostRecent) { - case UNDERRUN_FULL: - mostRecent = "full"; - break; - case UNDERRUN_PARTIAL: - mostRecent = "partial"; - break; - case UNDERRUN_EMPTY: - mostRecent = "empty"; - break; - default: - mostRecent = "?"; - break; - } - dprintf(fd, " %5u %6s %4u %7u %5u %7s %5zu\n", i, isActive ? "yes" : "no", - (underruns.mBitFields.mFull) & UNDERRUN_MASK, - (underruns.mBitFields.mPartial) & UNDERRUN_MASK, - (underruns.mBitFields.mEmpty) & UNDERRUN_MASK, - mostRecent, ftDump->mFramesReady); - } -} - } // namespace android -- cgit v1.1