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ngtcp2: shrink max sendbuf - #22786

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icing:ngtcp2-shrink-max-sendbuf
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icing wants to merge 1 commit into
curl:masterfrom
icing:ngtcp2-shrink-max-sendbuf

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@icing

@icing icing commented Sep 1, 2026

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The sendbuf for a HTTP/3 stream in ngtcp2 could grow up to 10MB which can lead to large memory consumption without any real gains.

Shrink the max size to 640KB, because that is enough for everyone.

The sendbuf for a HTTP/3 stream in ngtcp2 could grow up to 10MB which
can lead to large memory consumption without any real gains.

Shrink the max size to 640KB, because that is enough for everyone.
@github-actions github-actions Bot added the HTTP/3 h3 or quic related label Sep 1, 2026
@icing
icing requested a review from bagder September 1, 2026 16:21
@bagder

bagder commented Sep 1, 2026

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Any measurable speed difference?

@bagder

bagder commented Sep 1, 2026

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Saving the merge to post-release

@bagder bagder closed this in 9e5292a Sep 2, 2026
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