Mercurial > hg > nginx-quic
view src/os/win32/ngx_alloc.c @ 4113:a28ba1cdec27
Buffers reuse in chunked filter.
There were 2 buffers allocated on each buffer chain sent through chunked
filter (one buffer for chunk size, another one for trailing CRLF, about
120 bytes in total on 32-bit platforms). This resulted in large memory
consumption with long-lived requests sending many buffer chains. Usual
example of problematic scenario is streaming though proxy with
proxy_buffering set to off.
Introduced buffers reuse reduces memory consumption in the above problematic
scenario.
See here for initial report:
http://mailman.nginx.org/pipermail/nginx/2010-April/019814.html
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 15 Sep 2011 15:25:42 +0000 |
parents | 93e8daca5dbb |
children | d620f497c50f |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> ngx_uint_t ngx_pagesize; ngx_uint_t ngx_pagesize_shift; ngx_uint_t ngx_cacheline_size; void *ngx_alloc(size_t size, ngx_log_t *log) { void *p; p = malloc(size); if (p == NULL) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "malloc(%uz) failed", size); } ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, log, 0, "malloc: %p:%uz", p, size); return p; } void *ngx_calloc(size_t size, ngx_log_t *log) { void *p; p = ngx_alloc(size, log); if (p) { ngx_memzero(p, size); } return p; }