public StressBenchmark(Storage storage, BenchmarkOptions options)
{
this.storage = storage;
this.readDelayInSeconds = TimeSpan.FromSeconds(5);
this.statistics = new Statistics(readDelayInSeconds);
this.options = options;
}
public BenchmarkParameters(BenchmarkOptions options)
{
Num = options.Num;
Reads = options.Reads < 0 ? options.Num : options.Reads;
ValueSize = options.ValueSize;
EntriesPerBatch = 1;
FreshDatabase = false;
Sync = false;
NumberOfThreads = options.Threads;
Histogram = options.Histogram;
}
private Program()
{
options = new BenchmarkOptions();
optionSet = new OptionSet
{
{
"benchmarks:",
"Comma-separated list of operations to run in the specified order"
+ Environment.NewLine + "Actual benchmarks:"
+ Environment.NewLine + "- fillseq - write N values in sequential key order in async mode"
+ Environment.NewLine + "- fillrandom - write N values in random key order in async mode"
+ Environment.NewLine + "- overwrite - overwrite N values in random key order in async mode"
+ Environment.NewLine + "- fill100K - write N/1000 100K values in random order in async mode"
+ Environment.NewLine + "- deleteseq - delete N keys in sequential order"
+ Environment.NewLine + "- deleterandom - delete N keys in random order"
+ Environment.NewLine + "- readseq - read N times sequentially"
+ Environment.NewLine + "- readreverse - read N times in reverse order"
+ Environment.NewLine + "- readrandom - read N times in random order"
+ Environment.NewLine + "- readmissing - read N missing keys in random order"
+ Environment.NewLine + "- readhot - read N times in random order from 1% section of DB"
+ Environment.NewLine + "- seekrandom - N random seeks"
+ Environment.NewLine + "- crc32c - repeated crc32c of 4K of data"
+ Environment.NewLine + "- acquireload - load N*1000 times"
+ Environment.NewLine + "Meta operations:"
+ Environment.NewLine + "- compact - Compact the entire DB"
+ Environment.NewLine + "- stats - Print DB stats"
+ Environment.NewLine + "- sstables - Print sstable info"
+ Environment.NewLine + "- heapprofile - Dump a heap profile (if supported by this port)",
s => options.Benchmarks = s.Split(',')
},
{ "histogram:", "Print histogram of operation timings", s => options.Histogram = bool.Parse(s) },
{ "use-existing-db:", "If true, do not destroy the existing database. If you set this flag and also specify a benchmark that wants a fresh database, that benchmark will fail.", s => options.UseExistingDatabase = bool.Parse(s) },
{ "num:", "Number of key/values to place in database", s => options.Num = int.Parse(s) },
{ "reads:", "Number of read operations to do. If negative, do FLAGS_num reads.", s => options.Reads = int.Parse(s) },
{ "threads:", "Number of concurrent threads to run.", s => options.Threads = int.Parse(s) },
{ "value-size:", "Size of each value", s => options.ValueSize = int.Parse(s) },
{ "write-batch-size:", "Number of MB to buffer in memtable before compacting", s => options.WriteBatchSize = int.Parse(s) * 1024 * 1024 },
{ "cache-size:", "Number of megabytes to use as a cache of uncompressed data. Negative means use default settings.", s => options.CacheSize = int.Parse(s) },
{ "bloom-bits:", "Bloom filter bits per key. Negative means use default settings.", s => options.BloomBits = int.Parse(s) },
{ "db:", "Use the db with the following name.", s => options.DatabaseName = s },
{ "stress:", "Runs the stress benchmark (only).", s => options.Stress = true },
{ "stress-readers:", "Number of readers (default: 2).", s => options.StressReaders = int.Parse(s) },
{ "stress-small-writers:", "Number of 500 byte writers (default: 4).", s => options.StressSmallWriters = int.Parse(s) },
{ "stress-large-writers:", "Number of 500000 byte writers (default: 1).", s => options.StressLargeWriters = int.Parse(s) },
{ "log:", "Enables logging.", s => enableLogging = true },
{ "h|?|help", v => PrintUsageAndExit(0) },
};
}
public Benchmark(BenchmarkOptions options, Action<string> output)
{
this.options = options;
this.output = output;
}