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Sending and receiving data frames introduces significant overhead

Status: Open.

#902 In hyperium/h2;

· NedAnd1 opened on May 5, 2026

load_hpack takes ~9% of total CPU at high request rates

Status: Open.

#883 In hyperium/h2;

· aryehlev opened on Mar 30, 2026

RecvStream::is_end_stream() is never true. RecvStream::data() never returns None

Status: Open.

#882 In hyperium/h2;

· EmilyShepherd opened on Mar 28, 2026

Implicit RST_STREAM blocked until buffered DATA is fully drained

Status: Open.

#880 In hyperium/h2;

· mmishra100 opened on Mar 25, 2026

Streaming latency spikes: receive loop processes all buffered frames before yielding

Status: Open.

#879 In hyperium/h2;

· SeaOtocinclus opened on Mar 5, 2026

try_assign_capacity triggers debug assertion

Status: Open.

#878 In hyperium/h2;

· phu-cinemo opened on Feb 25, 2026

Outbound HTTP/2 frames can emit conflicting :authority and host headers

Status: Open.

#876 In hyperium/h2;

· magurotuna opened on Feb 12, 2026

h2::Error hides IO error

Status: Open.

#862 In hyperium/h2;

· konstin opened on Sep 4, 2025

Increasing window_size above initial_window_size

Status: Open.

#857 In hyperium/h2;

· DjordjeNikolasevic opened on Aug 6, 2025

Logical connection deadlock occurs under high concurrency - outgoing data transmission stops

Status: Open.

#853 In hyperium/h2;

· sandersaares opened on Jul 22, 2025

SendStream::ready() behaviour does match documentation (always return immediately as Ready)

Status: Open.

#848 In hyperium/h2;

· muhamadazmy opened on Jun 26, 2025

Server sends GoAway to closed connection (resulting in errors on macos/bsd)

Status: Open.

#843 In hyperium/h2;

· soundofspace opened on Apr 18, 2025