On Wednesday 26 June 2013 12:34:17 Yury Kirpichev wrote:
> Hello,
>
> Thanks for analysis and explanation.
> Then how about the following workaround -
> - queue blocked frames at the begining of queue in FIFO order.
> (just remove from ngx_http_spdy_queue_blocked_frame the code:
> if (frame->priority >= (*out)->priority) {
> break;
> }
> )
>
> - queue non-blocked frames after blocked in priority order:
> static ngx_inline void
> ngx_http_spdy_queue_frame(ngx_http_spdy_connection_t *sc,
> ngx_http_spdy_out_frame_t *frame)
> {
> ngx_http_spdy_out_frame_t **out;
>
> for (out = &sc->last_out; *out *&& !(*out)->blocked*; out =
> &(*out)->next)
> {
> if (frame->priority >= (*out)->priority) {
> break;
> }
> }
>
> frame->next = *out;
> *out = frame;
> }
>
> Do you foresee any obvious drawback of such approach?
>
[..]
At first glance I don't. Indeed it can be a better strategy, particularly
since the SYN_STREAM frames are usually small.
Have you tested it already?
wbr, Valentin V. Bartenev
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