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h2load: Support subsecond rate period 

This change adds subsecond rate period support to h2load.  Now
--rate-period option only accepts integer, but it can be followed by
units.  Currently, h, m, s, and ms are supported, which are hours,
minutes, seconds, and milliseconds respectively.  The underlying
functionality and usecase are already extensively used in nghttpx.
This commit is contained in:
Tatsuhiro Tsujikawa 2015-10-10 11:36:13 +09:00
parent 3f4b6f2b1c
commit 47f1d17ad3
2 changed files with 23 additions and 26 deletions
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40
src/h2load.cc
View File

@ -1261,7 +1261,7 @@ std::unique_ptr<Worker> create_worker(uint32_t id, SSL_CTX *ssl_ctx,
std::stringstream rate_report;
if (config.is_rate_mode() && nclients > rate) {
rate_report << "Up to " << rate << " client(s) will be created every "
<< std::setprecision(3) << config.rate_period << " seconds. ";
<< util::duration_str(config.rate_period) << " ";
}
std::cout << "spawning thread #" << id << ": " << nclients
@ -1379,12 +1379,12 @@ Options:
will run as it normally does, creating connections at
whatever variable rate it wants. The default value for
this option is 0.
--rate-period=<N>
--rate-period=<DURATION>
Specifies the time period between creating connections.
The period must be a positive number greater than or
equal to 1.0, representing the length of the period in
seconds. This option is ignored if the rate option is
not used. The default value for this option is 1.0.
The period must be a positive number, representing the
length of the period in time. This option is ignored if
the rate option is not used. The default value for this
option is 1s.
-T, --connection-active-timeout=<N>
Specifies the maximum time that h2load is willing to
keep a connection open, regardless of the activity on
@ -1434,7 +1434,14 @@ Options:
-v, --verbose
Output debug information.
--version Display version information and exit.
-h, --help Display this help and exit.)" << std::endl;
-h, --help Display this help and exit.
--
The <DURATION> argument is an integer and an optional unit (e.g., 1s
is 1 second and 500ms is 500 milliseconds). Units are h, m, s or ms
(hours, minutes, seconds and milliseconds, respectively). If a unit
is omitted, a second is used as unit.)" << std::endl;
}
} // namespace
@ -1629,26 +1636,15 @@ int main(int argc, char **argv) {
// npn-list option
config.npn_list = util::parse_config_str_list(optarg);
break;
case 5: {
case 5:
// rate-period
const char *start = optarg;
char *end;
errno = 0;
auto v = std::strtod(start, &end);
if (v < 1.0 || !std::isfinite(v) || end == start || errno != 0) {
auto error = errno;
std::cerr << "Rate period value error " << optarg << std::endl;
if (error != 0) {
std::cerr << "\n\t" << strerror(error) << std::endl;
}
config.rate_period = util::parse_duration_with_unit(optarg);
if (!std::isfinite(config.rate_period)) {
std::cerr << "--rate-period: value error " << optarg << std::endl;
exit(EXIT_FAILURE);
}
config.rate_period = v;
break;
}
}
break;
default:
break;

7
src/util.h
View File

@ -659,9 +659,10 @@ int64_t parse_uint(const std::string &s);
// Parses NULL terminated string |s| as unsigned integer and returns
// the parsed integer casted to double. If |s| ends with "s", the
// parsed value's unit is a second. If |s| ends with "ms", the unit
// is millisecond. If none of them are given, the unit is second.
// This function returns std::numeric_limits<double>::infinity() if
// error occurs.
// is millisecond. Similarly, it also supports 'm' and 'h' for
// minutes and hours respectively. If none of them are given, the
// unit is second. This function returns
// std::numeric_limits<double>::infinity() if error occurs.
double parse_duration_with_unit(const char *s);
// Returns string representation of time duration |t|. If t has