32 lines
970 B
Markdown
32 lines
970 B
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: tcp-nodelay
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Help: Set TCP_NODELAY
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Added: 7.11.2
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Category: connection
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Multi: boolean
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See-also:
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- no-buffer
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Example:
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- --tcp-nodelay $URL
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---
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# `--tcp-nodelay`
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Turn on the TCP_NODELAY option.
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This option disables the Nagle algorithm on TCP connections. The purpose of
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this algorithm is to minimize the number of small packets on the network
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(where "small packets" means TCP segments less than the Maximum Segment Size
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for the network).
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Maximizing the amount of data sent per TCP segment is good because it
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amortizes the overhead of the send. However, in some cases small segments may
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need to be sent without delay. This is less efficient than sending larger
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amounts of data at a time, and can contribute to congestion on the network if
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overdone.
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curl sets this option by default and you need to explicitly switch it off if
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you do not want it on (added in 7.50.2).
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