changeset 7950:e3dbd9449b14

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.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 29 Oct 2021 20:21:57 +0300
parents 862f6130d357
children c7a8bdf5af55
files src/http/ngx_http_core_module.c
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- 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 
     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);