quic: turn off GRO in client connection #19088
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Signed-off-by: Dan Zhang <danzh@google.com>
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/assign @RyanTheOptimist |
RyanTheOptimist
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Nov 24, 2021
Eventually yes, we probably want to add a client side config knob somewhere. But right now the GRO implementation has some issues already and its performance hasn't been measured. So I think not exposing it is the best way. |
Sounds good. Would you mind filing an issue about this so we have it recorded? |
mpuncel
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Nov 30, 2021
* main: (77 commits) Fix verify_and_print_latest_release logic (envoyproxy#19111) http2: drain only once when reached max_requests_per_connection (envoyproxy#19078) Overload: Reset H2 server stream only use codec level reset mechanism (envoyproxy#18895) Update QUICHE from c2ddf95dc to 7f2d442e3 (envoyproxy#19095) tools: Fix dependency checker release dates bug (envoyproxy#19109) cve_scan: Use `envoy.dependency.cve_scan` (envoyproxy#19047) tcp: fix overenthusiastic bounds on the new pool (envoyproxy#19036) dep: update Proxy-Wasm C++ host (2021-11-18). (envoyproxy#19074) build(deps): bump frozendict from 2.0.7 to 2.1.0 in /tools/base (envoyproxy#19080) kafka: dependency upgrades (envoyproxy#18995) build(deps): bump charset-normalizer in /tools/dependency (envoyproxy#19105) build(deps): bump slack-sdk in /.github/actions/pr_notifier (envoyproxy#19093) dep: Remove dependency - six (envoyproxy#19085) Remove requested_server_name_ field from StreamInfo (envoyproxy#19102) broken link path fix for items http_filters/grpc_json_transcoder_filter (envoyproxy#19101) quic: turn off GRO (envoyproxy#19088) Listener: Add global conn limit opt out. (envoyproxy#18876) Specify type for matching Subject Alternative Name. (envoyproxy#18628) Fix a broken example in Lua filter docs (envoyproxy#19086) Fix a small typo (envoyproxy#19058) ... Signed-off-by: Michael Puncel <mpuncel@squareup.com>
abeyad
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Feb 28, 2024
This behavior is guarded by the runtime flag `envoy.reloadable_features.prefer_udp_gro`. We previously turned off GRO in `EnvoyQuicClientConnection` because we weren't sure about the performance (see envoyproxy#19088). However, kernel experts have recommended using GRO over recvmmsg as a much more CPU efficient solution for reading multiple UDP packets into a single buffer. Signed-off-by: Ali Beyad <abeyad@google.com>
abeyad
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#32628) This behavior is guarded by the runtime flag `envoy.restart_features.prefer_udp_gro`. We previously turned off GRO in `EnvoyQuicClientConnection` because we weren't sure about the performance (see #19088). However, kernel experts have recommended using GRO over recvmmsg as a much more CPU efficient solution for reading multiple UDP packets into a single buffer. This change also enables setting the option of whether `recvmmsg` should be used or not, so we can disable it for client connections, while keeping it for listener sockets. Risk Level: low (can be turned off with the runtime guard) Testing: unit tests Release Notes: included Runtime guard: envoy.reloadable_features.prefer_udp_gro Signed-off-by: Ali Beyad <abeyad@google.com>
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Signed-off-by: Dan Zhang danzh@google.com
Commit Message: hard code prefer_gro to false. The performance of GRO hasn't been evaluated yet, so it shouldn't be default on.
Risk Level: low
Testing: existing tests pass