void DurableImpl::commitAndStopDurThread(OperationContext* txn) { // This is only called by clean shutdown and the global lock must be held to ensure // there will not be any more writes. invariant(txn->lockState()->isW()); commitNow(txn); shutdownRequested.store(1); }
void go() { verify( options["r"].trueValue() || options["w"].trueValue() ); recSizeKB = options["recSizeKB"].numberInt(); if( recSizeKB == 0 ) recSizeKB = 4; verify( recSizeKB <= 64000 && recSizeKB > 0 ); MemoryMappedFile f; cout << "creating test file size:"; len = options["fileSizeMB"].numberLong(); if( len == 0 ) len = 1; cout << len << "MB ..." << endl; if( 0 && len > 2000 && !options["mmf"].trueValue() ) { // todo make tests use 64 bit offsets in their i/o -- i.e. adjust LogFile::writeAt and such cout << "\nsizes > 2GB not yet supported with mmf:false" << endl; return; } len *= 1024 * 1024; const char *fname = "./mongoperf__testfile__tmp"; try { boost::filesystem::remove(fname); } catch(...) { cout << "error deleting file " << fname << endl; return; } lf = new LogFile(fname,true); const unsigned sz = 1024 * 1024 * 32; // needs to be big as we are using synchronousAppend. if we used a regular MongoFile it wouldn't have to be char *buf = (char*) mongoMalloc(sz+4096); const char *p = round(buf); for( unsigned long long i = 0; i < len; i += sz ) { lf->synchronousAppend(p, sz); if( i % (1024ULL*1024*1024) == 0 && i ) { cout << i / (1024ULL*1024*1024) << "GB..." << endl; } } BSONObj& o = options; if( o["mmf"].trueValue() ) { delete lf; lf = 0; mmfFile = new MemoryMappedFile(); mmf = (char *) mmfFile->map(fname); verify( mmf ); syncDelaySecs = options["syncDelay"].numberInt(); if( syncDelaySecs ) { boost::thread t(syncThread); } } cout << "testing..."<< endl; cout << "options:" << o.toString() << endl; unsigned wthr = 1; if( !o["nThreads"].eoo() ) { wthr = (unsigned) o["nThreads"].Int(); } cout << "wthr " << wthr << endl; if( wthr < 1 ) { cout << "bad threads field value" << endl; return; } unsigned i = 0; unsigned d = 1; unsigned &nthr = nThreadsRunning; while( 1 ) { if( i++ % 8 == 0 ) { if( nthr < wthr ) { while( nthr < wthr && nthr < d ) { nthr++; boost::thread w(workerThread); } cout << "new thread, total running : " << nthr << endl; d *= 2; } } sleepsecs(1); unsigned long long w = iops.loadRelaxed(); iops.store(0); w /= 1; // 1 secs cout << w << " ops/sec "; if( mmf == 0 ) // only writing 4 bytes with mmf so we don't say this cout << (w * PG / 1024 / 1024) << " MB/sec"; cout << endl; } }