The default is to let the operating system pick a value. Applications that perform multiple downloads in parallel may need to use smaller receive buffers to avoid exhausting the OS resources dedicated to TCP buffers.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-05-07 UTC."],[[["This webpage provides documentation for the `MaximumCurlSocketRecvSizeOption` across various versions, ranging from 2.11.0 to the latest release candidate 2.37.0-rc."],["The `MaximumCurlSocketRecvSizeOption` controls the maximum socket receive buffer size, with the OS selecting a default value if not specified."],["Setting a smaller receive buffer size may be necessary for applications that conduct multiple parallel downloads to avoid overusing OS TCP buffer resources."],["The type alias for the `MaximumCurlSocketRecvSizeOption` is `std::size_t`."]]],[]]