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added mechanism for measuring how much of a job has been created

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This commit is contained in:
Paul Cruz 2017-07-19 10:10:47 -07:00
parent 559ea4ff25
commit e11bf55d0b
1 changed files with 16 additions and 4 deletions
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20
contrib/adaptive-compression/adapt.c
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@ -89,8 +89,10 @@ typedef struct {
unsigned adaptParam;
unsigned compressionCompletionMeasured;
unsigned writeCompletionMeasured;
unsigned createCompletionMeasured;
double compressionCompletion;
double writeCompletion;
double createCompletion;
mutex_t jobCompressed_mutex;
cond_t jobCompressed_cond;
mutex_t jobReady_mutex;
@ -344,7 +346,7 @@ static void adaptCompressionLevel(adaptCCtx* ctx)
unsigned const writeSlow = (compressWaiting && createWaiting);
unsigned const compressSlow = (writeWaiting && createWaiting);
unsigned const createSlow = (compressWaiting && writeWaiting);
DEBUG(2, "createWaiting: %u, compressWaiting: %u, writeWaiting: %u\n", createWaiting, compressWaiting, writeWaiting);
DEBUG(3, "createWaiting: %u, compressWaiting: %u, writeWaiting: %u\n", createWaiting, compressWaiting, writeWaiting);
if (allSlow) {
reset = 1;
}
@ -352,13 +354,14 @@ static void adaptCompressionLevel(adaptCCtx* ctx)
DEBUG(3, "increasing compression level %u\n", ctx->compressionLevel);
double completion;
pthread_mutex_lock(&ctx->completion_mutex.pMutex);
completion = ctx->writeCompletion;
completion = writeSlow ? ctx->writeCompletion : ctx->createCompletion;
DEBUG(2, "write completion: %f, create completion: %f\n", ctx->writeCompletion, ctx->createCompletion);
pthread_mutex_unlock(&ctx->completion_mutex.pMutex);
{
unsigned const maxChange = (unsigned)((1-completion) * (MAX_COMPRESSION_LEVEL_CHANGE - 1)) + 1;
unsigned const change = writeSlow ? MIN(maxChange, ZSTD_maxCLevel() - ctx->compressionLevel) : 1;
DEBUG(2, "writeSlow: %u, change: %u\n", writeSlow, change);
DEBUG(2, "write completion: %f\n", completion);
DEBUG(3, "writeSlow: %u, change: %u\n", writeSlow, change);
DEBUG(3, "write completion: %f\n", completion);
ctx->compressionLevel += change;
reset = 1;
}
@ -418,6 +421,9 @@ static void* compressionThread(void* arg)
ctx->stats.readyCounter++;
pthread_mutex_unlock(&ctx->stats_mutex.pMutex);
reduceCounters(ctx);
pthread_mutex_lock(&ctx->completion_mutex.pMutex);
ctx->createCompletionMeasured = 1;
pthread_mutex_unlock(&ctx->completion_mutex.pMutex);
adaptCompressionLevel(ctx);
DEBUG(3, "waiting on job ready, nextJob: %u\n", currJob);
pthread_cond_wait(&ctx->jobReady_cond.pCond, &ctx->jobReady_mutex.pMutex);
@ -695,6 +701,12 @@ static int performCompression(adaptCCtx* ctx, FILE* const srcFile, outputThreadA
}
pos += ret;
remaining -= ret;
pthread_mutex_lock(&ctx->completion_mutex.pMutex);
if (!ctx->createCompletionMeasured) {
ctx->createCompletion = 1 - (double)remaining/((size_t)FILE_CHUNK_SIZE);
}
DEBUG(3, "create completion: %f\n", ctx->createCompletion);
pthread_mutex_unlock(&ctx->completion_mutex.pMutex);
}
if (remaining != 0 && !feof(srcFile)) {
DISPLAY("Error: problem occurred during read from src file\n");