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comparison src/event/quic/ngx_event_quic_output.c @ 9139:d7dec2970161

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QUIC: always add ACK frame to the queue head. Previously it was added to the tail as all other frames. However, if the amount of queued data is large, it could delay the delivery of ACK, which could trigger frames retransmissions and slow down the connection.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 10 Aug 2023 20:11:29 +0400
parents 9ae24a9ba763
children e9a003d40485
comparison
equal deleted inserted replaced
9138:a90f79792b5d 9139:d7dec2970161
1172 frame->type = NGX_QUIC_FT_ACK; 1172 frame->type = NGX_QUIC_FT_ACK;
1173 frame->u.ack.largest = ctx->largest_range; 1173 frame->u.ack.largest = ctx->largest_range;
1174 frame->u.ack.delay = ack_delay; 1174 frame->u.ack.delay = ack_delay;
1175 frame->u.ack.range_count = ctx->nranges; 1175 frame->u.ack.range_count = ctx->nranges;
1176 frame->u.ack.first_range = ctx->first_range; 1176 frame->u.ack.first_range = ctx->first_range;
1177 1177 frame->len = ngx_quic_create_frame(NULL, frame);
1178 ngx_quic_queue_frame(qc, frame); 1178
1179 ngx_queue_insert_head(&ctx->frames, &frame->queue);
1179 1180
1180 return NGX_OK; 1181 return NGX_OK;
1181 } 1182 }
1182 1183
1183 1184