1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
<?php
/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/*
* PHP client for QPS testing works as follows:
* 1. Gets initiated by a call from a proxy that implements the worker service. The
* argument to this client is the proxy connection information
* 2. Initiate an RPC to the proxy to get ClientConfig
* 3. Initiate a client-side telemetry RPC to the proxy
* 4. Parse the client config, which includes server target information and then start
* a unary or streaming test as appropriate.
* 5. After each completed RPC, send its timing to the proxy. The proxy does all histogramming
* 6. Proxy will respond on the timing channel when it's time to complete. Our
* next timing write will fail and we know that it's time to stop
* The above complex dance is since threading and async are not idiomatic and we
* shouldn't ever be waiting to read a mark
*
* This test only supports a single channel since threading/async is not idiomatic
* This test supports unary or streaming ping-pongs, as well as open-loop
*
*/
require dirname(__FILE__).'/vendor/autoload.php';
/**
* Assertion function that always exits with an error code if the assertion is
* falsy.
*
* @param $value Assertion value. Should be true.
* @param $error_message Message to display if the assertion is false
*/
function hardAssert($value, $error_message)
{
if (!$value) {
echo $error_message."\n";
exit(1);
}
}
function hardAssertIfStatusOk($status)
{
if ($status->code !== Grpc\STATUS_OK) {
echo "Call did not complete successfully. Status object:\n";
var_dump($status);
exit(1);
}
}
/* Start the actual client */
function qps_client_main($proxy_address) {
echo "Initiating php client\n";
$proxystubopts = [];
$proxystubopts['credentials'] = Grpc\ChannelCredentials::createInsecure();
$proxystub = new Grpc\Testing\ProxyClientServiceClient($proxy_address, $proxystubopts);
list($config, $status) = $proxystub->GetConfig(new Grpc\Testing\Void())->wait();
hardAssertIfStatusOk($status);
hardAssert($config->getClientChannels() == 1, "Only 1 channel supported");
hardAssert($config->getOutstandingRpcsPerChannel() == 1, "Only 1 outstanding RPC supported");
echo "Got configuration from proxy, target is " . $config->getServerTargets()[0] . "\n";
$stubopts = [];
if ($config->getSecurityParams()) {
if ($config->getSecurityParams()->getUseTestCa()) {
$stubopts['credentials'] = Grpc\ChannelCredentials::createSsl(
file_get_contents(dirname(__FILE__).'/../data/ca.pem'));
} else {
$stubopts['credentials'] = Grpc\ChannelCredentials::createSsl(null);
}
$override = $config->getSecurityParams()->getServerHostOverride();
if ($override) {
$stubopts['grpc.ssl_target_name_override'] = $override;
$stubopts['grpc.default_authority'] = $override;
}
} else {
$stubopts['credentials'] = Grpc\ChannelCredentials::createInsecure();
}
echo "Initiating php benchmarking client\n";
$stub = new Grpc\Testing\BenchmarkServiceClient(
$config->getServerTargets()[0], $stubopts);
$req = new Grpc\Testing\SimpleRequest();
$req->setResponseType(Grpc\Testing\PayloadType::COMPRESSABLE);
$req->setResponseSize($config->getPayloadConfig()->getSimpleParams()->getRespSize());
$payload = new Grpc\Testing\Payload();
$payload->setType(Grpc\Testing\PayloadType::COMPRESSABLE);
$payload->setBody(str_repeat("\0", $config->getPayloadConfig()->getSimpleParams()->getReqSize()));
$req->setPayload($payload);
/* TODO(stanley-cheung): Enable the following by removing the 0&& once protobuf
* properly supports oneof in PHP */
if (0 && $config->getLoadParams()->getLoad() == "poisson") {
$poisson = true;
$lamrecip = 1.0/($config->getLoadParams()->getPoisson()->getOfferedLoad());
$issue = microtime(true) + $lamrecip * -log(1.0-rand()/(getrandmax()+1));
} else {
$poisson = false;
}
$metric = new Grpc\Testing\ProxyStat;
$telemetry = $proxystub->ReportTime();
if ($config->getRpcType() == Grpc\Testing\RpcType::UNARY) {
while (1) {
if ($poisson) {
time_sleep_until($issue);
$issue = $issue + $lamrecip * -log(1.0-rand()/(getrandmax()+1));
}
$startreq = microtime(true);
list($resp,$status) = $stub->UnaryCall($req)->wait();
hardAssertIfStatusOk($status);
$metric->setLatency(microtime(true)-$startreq);
$telemetry->write($metric);
}
} else {
$stream = $stub->StreamingCall();
while (1) {
if ($poisson) {
time_sleep_until($issue);
$issue = $issue + $lamrecip * -log(1.0-rand()/(getrandmax()+1));
}
$startreq = microtime(true);
$stream->write($req);
$resp = $stream->read();
$metric->setLatency(microtime(true)-$startreq);
$telemetry->write($metric);
}
}
}
ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);
error_reporting(-1);
qps_client_main($argv[1]);
|
