Throughput

Throughput is the measured rate of successful data transfer between two points. It is affected by bandwidth, latency, packet loss, protocol overhead and the speed of the endpoints.

Why it matters

Throughput is what users and applications actually experience. TCP throughput on a single connection is limited by window size and round-trip time, so a distant server can deliver much less than a nearby one on the same link. Monitoring throughput over time reveals congestion that a nominal bandwidth figure hides.

When comparing tests, note the direction (upload or download), the number of parallel connections and the distance to the test server.

Example

$ iperf3 -c server.example.net
[ ID] Interval        Transfer    Bitrate
[  5] 0.00-10.00 sec  1.05 GBytes  900 Mbits/sec

On a 1 Gbps link, 900 Mbps of measured throughput is typical because of headers, acknowledgements and other overhead.

Common mistakes

• Quoting the plan's bandwidth as your expected throughput.
• Testing against a single distant server and blaming the local connection.
• Ignoring Wi-Fi, which often caps throughput below the wired link.

Related

• Bandwidth
• Latency
• TCP
• Packet loss

यह पेज सामान्य जानकारी है, जिसे हमारी संपादकीय टीम ने लिखा है और दस्तावेज़ीकरण बदलने पर अपडेट किया जाता है। सर्वर और प्रदाता अलग-अलग होते हैं, इसलिए बदलाव पहले सुरक्षित तरीके से जाँचें। देखें: संपादकीय नीति और अस्वीकरण.