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phorge-arcanist/scripts/hgdaemon/hgdaemon_server.php

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#!/usr/bin/env php
<?php
require_once dirname(dirname(__FILE__)).'/__init_script__.php';
$args = new PhutilArgumentParser($argv);
$args->parseStandardArguments();
$args->parse(
array(
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
array(
'name' => 'quiet',
'help' => pht('Do not print status messages to stdout.'),
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
),
array(
'name' => 'skip-hello',
'help' => pht(
'Do not send "capability" message when clients connect. Clients '.
'must be configured not to expect the message. This deviates '.
'from the Mercurial protocol, but slightly improves performance.'),
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
),
array(
'name' => 'do-not-daemonize',
'help' => pht('Remain in the foreground instead of daemonizing.'),
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
),
array(
'name' => 'client-limit',
'param' => 'limit',
'help' => pht('Exit after serving __limit__ clients.'),
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
),
array(
'name' => 'idle-limit',
'param' => 'seconds',
'help' => pht('Exit after __seconds__ spent idle.'),
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
),
array(
'name' => 'repository',
'wildcard' => true,
),
));
$repo = $args->getArg('repository');
if (count($repo) !== 1) {
throw new Exception(pht('Specify exactly one working copy!'));
}
$repo = head($repo);
Add various flags to the HgProxy daemons Summary: - Add flags to exit after an idle time or client count. - Add flags to control daemonization. - Add flags to control output. - Add flags to skip the "hello" frame of the protocol. - Make the client launch a server if one does not exist. The one-time overhead to launch a server and run a command through it looks to be ~130% of the overhead to run the command directly with "hg", so even if we never run a second command we're not paying too much. The incremental overhead to run subsequent command appears to be less than 3% of the overhead to run the command directly with "hg" (and maybe less than 1%, I'm not sure how long the computation part of a command like 'hg log' "actually" takes). The overhead to launch a PHP client, connect to an existing server, run a command, and then print it and exit is roughly 50% of the overhead to run the command directly with "hg". So theoretically a user can achieve an amortized 2x performance increase for all 'hg' commands by aliasing 'hg' to the PHP client in their shell. Test Plan: - Ran servers with idle and client count limits, let them idle and/or hit their connection limits, saw them exit. - Ran foreground and background servers. - Ran a daemon server with redirected stdout/stderr. Verified logs appeared. - Ran with --quiet. - Ran clients and servers with and without --skip-hello, things work if they agree and break if they disagree. The throughput gain on this is fairly small (maybe 5%?) but it seems simple enough to keep for the moment. - Ran serverless clients and verified that servers launched the first time, were available subsequently, and relaunched after 15 seconds idle. Reviewers: csilvers, vrana, btrahan Reviewed By: csilvers CC: aran Differential Revision: https://secure.phabricator.com/D2680
2012-06-26 20:00:26 +02:00
id(new ArcanistHgProxyServer($repo))
->setQuiet($args->getArg('quiet'))
->setClientLimit($args->getArg('client-limit'))
->setIdleLimit($args->getArg('idle-limit'))
->setDoNotDaemonize($args->getArg('do-not-daemonize'))
->setSkipHello($args->getArg('skip-hello'))
->start();