Mercurial > hg > nginx
annotate auto/os/conf @ 6250:0256738454dc
Increased the default number of output buffers.
Since an output buffer can only be used for either reading or sending, small
amounts of data left from the previous operation (due to some limits) must be
sent before nginx will be able to read further into the buffer. Using only
one output buffer can result in suboptimal behavior that manifests itself in
forming and sending too small chunks of data. This is particularly painful
with SPDY (or HTTP/2) where each such chunk needs to be prefixed with some
header.
The default flow-control window in HTTP/2 is 64k minus one bytes. With one
32k output buffer this results is one byte left after exhausting the window.
With two 32k buffers the data will be read into the second free buffer before
sending, thus the minimum output is increased to 32k + 1 bytes which is much
better.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Tue, 15 Sep 2015 17:49:15 +0300 |
parents | a88e309f839b |
children | 639e48c382a6 |
rev | line source |
---|---|
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
1 |
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
4 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
5 |
563 | 6 echo "checking for $NGX_SYSTEM specific features" |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 |
493 | 8 case "$NGX_PLATFORM" in |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 |
688
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
10 FreeBSD:*) |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 . auto/os/freebsd |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
12 ;; |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
13 |
196
11fbd0fc041d
nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
14 Linux:*) |
11fbd0fc041d
nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
15 . auto/os/linux |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
16 ;; |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
17 |
196
11fbd0fc041d
nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
18 SunOS:*) |
11fbd0fc041d
nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
19 . auto/os/solaris |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
20 ;; |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
21 |
2128
345a014436d4
*) move Darwin support to separate files
Igor Sysoev <igor@sysoev.ru>
parents:
940
diff
changeset
|
22 Darwin:*) |
345a014436d4
*) move Darwin support to separate files
Igor Sysoev <igor@sysoev.ru>
parents:
940
diff
changeset
|
23 . auto/os/darwin |
345a014436d4
*) move Darwin support to separate files
Igor Sysoev <igor@sysoev.ru>
parents:
940
diff
changeset
|
24 ;; |
345a014436d4
*) move Darwin support to separate files
Igor Sysoev <igor@sysoev.ru>
parents:
940
diff
changeset
|
25 |
2828
f5c80c69a72e
backout -r2827 and add correct fix
Igor Sysoev <igor@sysoev.ru>
parents:
2826
diff
changeset
|
26 win32) |
455 | 27 . auto/os/win32 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
28 ;; |
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
29 |
688
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
30 DragonFly:*) |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
31 have=NGX_FREEBSD . auto/have_headers |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
32 CORE_INCS="$UNIX_INCS" |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
33 CORE_DEPS="$UNIX_DEPS $FREEBSD_DEPS" |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
34 CORE_SRCS="$UNIX_SRCS $FREEBSD_SRCS" |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
35 |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
36 echo " + sendfile() found" |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
37 have=NGX_HAVE_SENDFILE . auto/have |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
38 CORE_SRCS="$CORE_SRCS $FREEBSD_SENDFILE_SRCS" |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
39 |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
40 ngx_spacer=' |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
41 ' |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
42 ;; |
03fa118203d6
separate DragonFlyBSD autoconfiguration from FreeBSD
Igor Sysoev <igor@sysoev.ru>
parents:
593
diff
changeset
|
43 |
515 | 44 HP-UX:*) |
45 # HP/UX | |
46 have=NGX_HPUX . auto/have_headers | |
47 CORE_INCS="$UNIX_INCS" | |
48 CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" | |
49 CORE_SRCS="$UNIX_SRCS" | |
50 CC_AUX_FLAGS="$CC_AUX_FLAGS -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1" | |
4692
489839d07b38
Fixed "sendmsg() failed" alerts on HP-UX.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4690
diff
changeset
|
51 CC_AUX_FLAGS="$CC_AUX_FLAGS -D_HPUX_ALT_XOPEN_SOCKET_API" |
515 | 52 ;; |
53 | |
54 OSF1:*) | |
517 | 55 # Tru64 UNIX |
515 | 56 have=NGX_TRU64 . auto/have_headers |
517 | 57 have=NGX_HAVE_STRERROR_R . auto/nohave |
515 | 58 CORE_INCS="$UNIX_INCS" |
59 CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" | |
60 CORE_SRCS="$UNIX_SRCS" | |
61 ;; | |
62 | |
6156
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
63 GNU:*) |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
64 # GNU Hurd |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
65 have=NGX_GNU_HURD . auto/have_headers |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
66 CORE_INCS="$UNIX_INCS" |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
67 CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
68 CORE_SRCS="$UNIX_SRCS" |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
69 CC_AUX_FLAGS="$CC_AUX_FLAGS -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64" |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
70 ;; |
a88e309f839b
Configure: GNU Hurd properly recognized.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4692
diff
changeset
|
71 |
355
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
320
diff
changeset
|
72 *) |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
320
diff
changeset
|
73 CORE_INCS="$UNIX_INCS" |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
320
diff
changeset
|
74 CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
320
diff
changeset
|
75 CORE_SRCS="$UNIX_SRCS" |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
320
diff
changeset
|
76 ;; |
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
320
diff
changeset
|
77 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
78 esac |
455 | 79 |
80 | |
493 | 81 case "$NGX_MACHINE" in |
479 | 82 |
589 | 83 i386 | i686 | i86pc) |
509 | 84 have=NGX_HAVE_NONALIGNED . auto/have |
589 | 85 NGX_MACH_CACHE_LINE=32 |
86 ;; | |
87 | |
593 | 88 amd64 | x86_64) |
589 | 89 have=NGX_HAVE_NONALIGNED . auto/have |
90 NGX_MACH_CACHE_LINE=64 | |
509 | 91 ;; |
479 | 92 |
745 | 93 sun4u | sun4v | sparc | sparc64) |
581 | 94 have=NGX_ALIGNMENT value=16 . auto/define |
589 | 95 # TODO |
96 NGX_MACH_CACHE_LINE=64 | |
97 ;; | |
98 | |
99 ia64 ) | |
100 have=NGX_ALIGNMENT value=16 . auto/define | |
101 # TODO | |
102 NGX_MACH_CACHE_LINE=64 | |
103 ;; | |
104 | |
105 *) | |
4690
d91f3c78603e
Changed default alignment to 16.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
106 have=NGX_ALIGNMENT value=16 . auto/define |
589 | 107 NGX_MACH_CACHE_LINE=32 |
581 | 108 ;; |
109 | |
479 | 110 esac |
589 | 111 |
112 if test -z "$NGX_CPU_CACHE_LINE"; then | |
113 NGX_CPU_CACHE_LINE=$NGX_MACH_CACHE_LINE | |
114 fi | |
115 | |
116 have=NGX_CPU_CACHE_LINE value=$NGX_CPU_CACHE_LINE . auto/define |