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view auto/endianess @ 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 | 694d285ec752 |
children | d620f497c50f |
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# Copyright (C) Igor Sysoev echo $ngx_n "checking for system endianess ...$ngx_c" echo >> $NGX_ERR echo "checking for system endianess" >> $NGX_ERR cat << END > $NGX_AUTOTEST.c int main() { int i = 0x11223344; char *p; p = (char *) &i; if (*p == 0x44) return 0; return 1; } END ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \ -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs" eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1" if [ -x $NGX_AUTOTEST ]; then if $NGX_AUTOTEST >/dev/null 2>&1; then echo " little endianess" have=NGX_HAVE_LITTLE_ENDIAN . auto/have else echo " big endianess" fi rm $NGX_AUTOTEST* else rm $NGX_AUTOTEST* echo echo "$0: error: can not detect system endianess" exit 1 fi