From 5636e7f7b491a4db287e3aa5312cd5955075f5ec Mon Sep 17 00:00:00 2001 From: Maxim Dounin Date: Fri, 29 Oct 2021 20:21:57 +0300 Subject: [PATCH] Changed default value of sendfile_max_chunk to 2m. The "sendfile_max_chunk" directive is important to prevent worker monopolization by fast connections. The 2m value implies maximum 200ms delay with 100 Mbps links, 20ms delay with 1 Gbps links, and 2ms on 10 Gbps links. It also seems to be a good value for disks. --- src/http/ngx_http_core_module.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c index bad43ea5c..fe1da4576 100644 --- a/src/http/ngx_http_core_module.c +++ b/src/http/ngx_http_core_module.c @@ -3720,7 +3720,7 @@ ngx_http_core_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) ngx_conf_merge_value(conf->internal, prev->internal, 0); ngx_conf_merge_value(conf->sendfile, prev->sendfile, 0); ngx_conf_merge_size_value(conf->sendfile_max_chunk, - prev->sendfile_max_chunk, 0); + prev->sendfile_max_chunk, 2 * 1024 * 1024); ngx_conf_merge_size_value(conf->subrequest_output_buffer_size, prev->subrequest_output_buffer_size, (size_t) ngx_pagesize);