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Disable BLL-FEC on GFE 3.26

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The effective FEC percentage is much lower which negatively impacts performance on lossy networks
This commit is contained in:
Cameron Gutman
2022-10-04 17:51:01 -05:00
parent dbfbc91971
commit 72f4f9e7b1
1 changed files with 7 additions and 0 deletions
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7
src/SdpGenerator.c
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@@ -175,6 +175,13 @@ static int addGen5Options(PSDP_OPTION* head) {
// above the set value (even going as high as 200% FEC to generate 2 FEC shards from a
// 1 data shard frame).
err |= addAttributeString(head, "x-nv-vqos[0].fec.minRequiredFecPackets", "2");
// BLL-FEC appears to adjust dynamically based on the loss rate and instantaneous bitrate
// of each frame, however we can't dynamically control it from our side yet. As a result,
// the effective FEC amount is significantly lower (single digit percentages for many
// large frames) and the result is worse performance during packet loss. Disabling BLL-FEC
// results in GFE 3.26 falling back to the legacy FEC method as we would like.
err |= addAttributeString(head, "x-nv-vqos[0].bllFec.enable", "0");
}
else {
// We want to use the new ENet connections for control and input