envoyproxy/envoy

Defer sending in QuicConnection can't be enabled on Windows

Open

#22.976 aberto em 2 de set. de 2022

Ver no GitHub
 (0 comments) (0 reactions) (0 assignees)C++ (5.373 forks)batch import
area/quicarea/windowshelp wanted

Métricas do repositório

Stars
 (27.997 stars)
Métricas de merge de PR
 (Mesclagem média 8d) (378 fundiu PRs em 30d)

Description

https://github.com/envoyproxy/envoy/pull/22796 enables QuicConnection defer sending on other platforms. This is an optimization to improve CPU cost in light of UDP GSO. But this QUICHE behavior change causes test failures on Windows, i.e.

Protocols/FilterIntegrationTest.H3PostHandshakeFailoverToTcp/IPv4_Http2Downstream_Http3UpstreamNghttp2NoDeferredProcessing
.\test/integration/server.h(484): error: Value of: TestUtility::waitForCounterEq(statStore(), name, value, time_system_, timeout, dispatcher)
  Actual: false (timed out waiting for cluster.cluster_0.upstream_cx_destroy to be 2, current value 1)
Expected: true
Stack trace:
  00007FF6ACD850CC: (unknown)
  00007FF6ACD84FB6: (unknown)
  00007FF6ACD9E258: (unknown)
  00007FF6ACD9E41D: (unknown)
  00007FF6ACD9EE8D: (unknown)
... Google Test internal frames ...

[2022-08-26 22:17:36.929][4684][critical][assert] [test/integration/http_integration.cc:527] assert failure: 0. Details: Timed out waiting for new connection.

And we never verified it can also improve CPU performance on Windows, given that Windows doesn't support GSO.

We should sort out those test failures and verify the improvement on Windows platform.

Guia do colaborador