Mercurial > hg > nginx-quic
annotate auto/cc/name @ 8398:82e174e47663
Changed keepalive_requests default to 1000 (ticket #2155).
It turns out no browsers implement HTTP/2 GOAWAY handling properly, and
large enough number of resources on a page results in failures to load
some resources. In particular, Chrome seems to experience errors if
loading of all resources requires more than 1 connection (while it
is usually able to retry requests at least once, even with 2 connections
there are occasional failures for some reason), Safari if loading requires
more than 3 connections, and Firefox if loading requires more than 10
connections (can be configured with network.http.request.max-attempts,
defaults to 10).
It does not seem to be possible to resolve this on nginx side, even strict
limiting of maximum concurrency does not help, and loading issues seems to
be triggered by merely queueing of a request for a particular connection.
The only available mitigation seems to use higher keepalive_requests value.
The new default is 1000 and matches previously used default for
http2_max_requests. It is expected to be enough for 99.98% of the pages
(https://httparchive.org/reports/state-of-the-web?start=latest#reqTotal)
even in Chrome.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 08 Apr 2021 00:16:30 +0300 |
parents | 325b3042edd6 |
children |
rev | line source |
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455 | 1 |
2 # Copyright (C) Igor Sysoev | |
4412 | 3 # Copyright (C) Nginx, Inc. |
455 | 4 |
5 | |
946 | 6 if [ "$NGX_PLATFORM" != win32 ]; then |
7 | |
8 ngx_feature="C compiler" | |
9 ngx_feature_name= | |
10 ngx_feature_run=yes | |
11 ngx_feature_incs= | |
12 ngx_feature_path= | |
13 ngx_feature_libs= | |
14 ngx_feature_test= | |
15 . auto/feature | |
16 | |
17 if [ $ngx_found = no ]; then | |
18 echo | |
19 echo $0: error: C compiler $CC is not found | |
20 echo | |
21 exit 1 | |
22 fi | |
23 | |
24 fi | |
455 | 25 |
26 | |
577 | 27 if [ "$CC" = cl ]; then |
6397
78f8ac479735
Win32: simplified and improved handling of MSVC versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5187
diff
changeset
|
28 NGX_CC_NAME=msvc |
78f8ac479735
Win32: simplified and improved handling of MSVC versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5187
diff
changeset
|
29 echo " + using Microsoft Visual C++ compiler" |
455 | 30 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
31 elif [ "$CC" = wcl386 ]; then |
455 | 32 NGX_CC_NAME=owc |
946 | 33 echo " + using Open Watcom C compiler" |
455 | 34 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
35 elif [ "$CC" = bcc32 ]; then |
455 | 36 NGX_CC_NAME=bcc |
946 | 37 echo " + using Borland C++ compiler" |
455 | 38 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
39 elif `$CC -V 2>&1 | grep '^Intel(R) C' >/dev/null 2>&1`; then |
4492
4871a7dc12a9
Configure: moved icc detection before gcc.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
40 NGX_CC_NAME=icc |
4871a7dc12a9
Configure: moved icc detection before gcc.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
41 echo " + using Intel C++ compiler" |
4871a7dc12a9
Configure: moved icc detection before gcc.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
42 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
43 elif `$CC -v 2>&1 | grep 'gcc version' >/dev/null 2>&1`; then |
455 | 44 NGX_CC_NAME=gcc |
946 | 45 echo " + using GNU C compiler" |
455 | 46 |
7161
325b3042edd6
Configure: fixed clang detection on MINIX.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6397
diff
changeset
|
47 elif `$CC -v 2>&1 | grep 'clang version' >/dev/null 2>&1`; then |
325b3042edd6
Configure: fixed clang detection on MINIX.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6397
diff
changeset
|
48 NGX_CC_NAME=clang |
325b3042edd6
Configure: fixed clang detection on MINIX.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6397
diff
changeset
|
49 echo " + using Clang C compiler" |
325b3042edd6
Configure: fixed clang detection on MINIX.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6397
diff
changeset
|
50 |
325b3042edd6
Configure: fixed clang detection on MINIX.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6397
diff
changeset
|
51 elif `$CC -v 2>&1 | grep 'LLVM version' >/dev/null 2>&1`; then |
4762
182aee3b1bf5
Added the Clang compiler support.
Ruslan Ermilov <ru@nginx.com>
parents:
4758
diff
changeset
|
52 NGX_CC_NAME=clang |
182aee3b1bf5
Added the Clang compiler support.
Ruslan Ermilov <ru@nginx.com>
parents:
4758
diff
changeset
|
53 echo " + using Clang C compiler" |
182aee3b1bf5
Added the Clang compiler support.
Ruslan Ermilov <ru@nginx.com>
parents:
4758
diff
changeset
|
54 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
55 elif `$CC -V 2>&1 | grep 'Sun C' >/dev/null 2>&1`; then |
561 | 56 NGX_CC_NAME=sunc |
946 | 57 echo " + using Sun C compiler" |
561 | 58 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
59 elif `$CC -V 2>&1 | grep '^Compaq C' >/dev/null 2>&1`; then |
455 | 60 NGX_CC_NAME=ccc |
946 | 61 echo " + using Compaq C compiler" |
455 | 62 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
63 elif `$CC -V 2>&1 | grep '^aCC: ' >/dev/null 2>&1`; then |
455 | 64 NGX_CC_NAME=acc |
946 | 65 echo " + using HP aC++ compiler" |
455 | 66 |
67 else | |
517 | 68 NGX_CC_NAME=unknown |
455 | 69 |
4758
1f908d2dde8d
Replaced a number of "else if" with "elif".
Ruslan Ermilov <ru@nginx.com>
parents:
4492
diff
changeset
|
70 fi |