throughput

My app creates a 2GB file and needs to select the fastest drive on the system with enough space. I am trying to calculate throughput by creating the file, setting the length, then writing data to it sequentially as follows: FileInfo file = null; var drives = DriveInfo.GetDrives(); var stats = new List<DriveInfoStatistics>(); foreach (var drive in drives) { do { file = new FileInfo(Path.Combine(drive.RootDirectory.FullName, Guid.NewGuid().ToString("D") + ".tmp")); } while (file.Exists); try { using (var stream = file.Open(FileMode.CreateNew, FileAccess.Write, FileShare.None)) { var seconds = 10

I have one observation and want to get knowledge on Throughput calculation ,Some time Throughput is displaying in seconds,some times in minutes and some times in Hours,please any one provide exact answer to calculate throughput and when it will display in Seconds,Minutes and Hours in Jmeter Summary Report From JMeter Docs: Throughput is calculated as requests/unit of time. The time is calculated from the start of the first sample to the end of the last sample. This includes any intervals between samples, as it is supposed to represent the load on the server. The formula is: Throughput =

In the CUDA visual profiler, version 5, I know that the "gld/st_requested_throughput" are the requested memory throughput of application. However, when I try to find the actual throughput of hardware, I am confused because there are two pairs of metrics which seem to be qualified, and they are "gld/st_throughput" and "dram_read/write_throughput". Which pair is actually the hardware throughput? And what does the other serve as? Roger Dahl gld/st_throughput includes transactions served by the L1 and L2 caches. While dram_read/write_throughput is the throughput between L2 and device memory. So,

I wrote the server that accepts connection and bombards messages ( ~100 bytes ) using text protocol and my implementation is able to send about loopback 400K/sec messages with the 3rt party client. I picked Netty for this task, SUSE 11 RealTime, JRockit RTS. But when I started developing my own client based on Netty I faced drastic throughput reduction ( down from 400K to 1.3K msg/sec ). The code of the client is pretty straightforward. Could you, please, give an advice or show examples how to write much more effective client. I,actually, more care about latency, but started with throughput

I have written a very simple java program for Apache Flink and now I am interested in measuring statistics such as throughput (number of tuples processed per second) and latency (the time the program needs to process every input tuple). StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); env.readTextFile("/home/LizardKing/Documents/Power/Prova.csv") .map(new MyMapper().writeAsCsv("/home/LizardKing/Results.csv"); JobExecutionResult res = env.execute(); I know that Flink exposes some metrics: https://ci.apache.org/projects/flink/flink-docs-release-1.2

I'm benchmarking ElasticSearch for very high indexing throughput purposes. My current goal is to be able to index 3 billion (3,000,000,000) documents in a matter of hours. For that purpose, I currently have 3 windows server machines, with 16GB RAM and 8 processors each. The documents being inserted have a very simple mapping, containing only a handful of numerical non analyzed fields ( _all is disabled). I am able to reach roughly 120,000 index requests per second (monitoring using big desk), using this relatively modest rig, and I'm confident that the throughput can be increased further. I'm

I'm implementing a protocol over serial ports on Linux. The protocol is based on a request answer scheme so the throughput is limited by the time it takes to send a packet to a device and get an answer. The devices are mostly arm based and run Linux >= 3.0. I'm having troubles reducing the round trip time below 10ms (115200 baud, 8 data bit, no parity, 7 byte per message). What IO interfaces will give me the lowest latency: select, poll, epoll or polling by hand with ioctl? Does blocking or non blocking IO impact latency? I tried setting the low_latency flag with setserial. But it seemed like