diff options
Diffstat (limited to 'main/http_api.c')
| -rw-r--r-- | main/http_api.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/main/http_api.c b/main/http_api.c index c490a85..69e555e 100644 --- a/main/http_api.c +++ b/main/http_api.c @@ -499,6 +499,22 @@ static esp_err_t frame_post_handler(httpd_req_t *req) state_machine_frame_painted(); // reset idle timer + // Server-Timing per-stage breakdown so the Scrypted side can build + // a unified end-to-end trace per frame (joined by X-Frame-Seq). + // Units are ms with 0.1ms precision — paint is sub-millisecond + // so the decimal matters there. Scrypted subtracts the sum from + // its own (fetch_start → Response_headers) measurement to derive + // the network up + handler-dispatch overhead it can't see directly. + char st_hdr[160]; + snprintf(st_hdr, sizeof(st_hdr), + "recv;dur=%.1f, dec;dur=%.1f, paint;dur=%.1f, post;dur=%.1f, handle;dur=%.1f", + (t_recv - t_first_byte) / 1000.0, + (t_decode - t_recv) / 1000.0, + (t_paint - t_decode) / 1000.0, + (t_post - t_paint) / 1000.0, + (t_post - t_entry) / 1000.0); + httpd_resp_set_hdr(req, "Server-Timing", st_hdr); + httpd_resp_set_status(req, "204 No Content"); return httpd_resp_send(req, NULL, 0); } |