Opened 10 years ago
Closed 10 years ago
#451 closed enhancement (fixed)
Turn NGX_SSL_BUFSIZE into a configuration directive
| Reported by: | Steffen Weber | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | |
| Component: | nginx-core | Version: | 1.3.x |
| Keywords: | Cc: | ||
| uname -a: | |||
| nginx -V: | nginx version: nginx/1.4.4 | ||
Description
Nginx uses a hard-coded SSL buffer size of 16 KB (see NGX_SSL_BUFSIZE in ngx_event_openssl.h). Google employee Ilya Grigorik recommends lowering this size to 1 KB (see http://www.igvita.com/2013/10/24/optimizing-tls-record-size-and-buffering-latency/).
It would be nice if you could turn the compile-time constant "NGX_SSL_BUFSIZE" into a configuration directive.
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The ssl_buffer_size directive added by a297b7ad6f94. Not that it might not be a good idea to use 1k as a value, but general consensus seems to be that something like 4k or 8k should be good enough to minimize latency, see this thread.