Mercurial > hg > nginx-tests
view stream_tcp_nodelay.t @ 1983:c7315caf2110
Tests: optimized processing of large QUIC packets with padding.
Path MTU discovery packets might contain a lot of padding, and creating
a copy of the whole buffer for each PADDING frame, which is just one
byte with type 0, consumes lots of resources. This was seen to result
in flapping of at least h3_keepalive.t and h3_ssl_early_data.t tests.
Fix is to copy at most 8 bytes for parse_int() calls when parsing
frame types.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 03 Jun 2024 04:17:28 +0300 |
parents | f3ba4c74de31 |
children |
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#!/usr/bin/perl # (C) Andrey Zelenkov # (C) Sergey Kandaurov # (C) Nginx, Inc. # Stream tests for tcp_nodelay. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ stream /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream/); $t->plan(2)->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% proxy_buffer_size 1; tcp_nodelay off; server { listen 127.0.0.1:8081; proxy_pass 127.0.0.1:8080; } server { tcp_nodelay on; listen 127.0.0.1:8082; proxy_pass 127.0.0.1:8080; } } EOF $t->run_daemon(\&stream_daemon); $t->run()->waitforsocket('127.0.0.1:' . port(8080)); ############################################################################### my $str = '1234567890' x 10 . 'F'; my $length = length($str); is(stream('127.0.0.1:' . port(8081))->io($str, length => $length), $str, 'tcp_nodelay off'); is(stream('127.0.0.1:' . port(8082))->io($str, length => $length), $str, 'tcp_nodelay on'); ############################################################################### sub stream_daemon { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1:' . port(8080), Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; my $sel = IO::Select->new($server); local $SIG{PIPE} = 'IGNORE'; while (my @ready = $sel->can_read) { foreach my $fh (@ready) { if ($server == $fh) { my $new = $fh->accept; $new->autoflush(1); $sel->add($new); } elsif (stream_handle_client($fh)) { $sel->remove($fh); $fh->close; } } } } sub stream_handle_client { my ($client) = @_; log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or return 1; log2i("$client $buffer"); my $close = $buffer =~ /F/; log2o("$client $buffer"); $client->syswrite($buffer); return $close; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################