Merge pull request #461 from shish/dbtime

Log time spent in database (and some other minor performance debugging tweaks)
This commit is contained in:
Shish 2014-12-01 14:03:28 +00:00
commit fcb7166b0c
8 changed files with 33 additions and 15 deletions

View File

@ -284,6 +284,9 @@ class MemcacheCache implements CacheEngine {
$this->memcache = new Memcache;
@$this->memcache->pconnect($hp[0], $hp[1]);
}
else {
print "no memcache"; exit;
}
}
/**
@ -292,10 +295,11 @@ class MemcacheCache implements CacheEngine {
*/
public function get($key) {
assert(!is_null($key));
if((DEBUG_CACHE === true) || (is_null(DEBUG_CACHE) && @$_GET['DEBUG_CACHE'])) {
file_put_contents("data/cache.log", "Cache lookup: $key\n", FILE_APPEND);
}
$val = $this->memcache->get($key);
if((DEBUG_CACHE === true) || (is_null(DEBUG_CACHE) && @$_GET['DEBUG_CACHE'])) {
$hit = $val === false ? "miss" : "hit";
file_put_contents("data/cache.log", "Cache $hit: $key\n", FILE_APPEND);
}
if($val !== false) {
$this->hits++;
return $val;
@ -380,6 +384,7 @@ class Database {
* @var null|PDO
*/
private $db = null;
public $dbtime = 0.0;
/**
* Meta info about the database engine.
@ -576,7 +581,10 @@ class Database {
* @return array
*/
public function get_all($query, $args=array()) {
return $this->execute($query, $args)->fetchAll();
$_start = microtime(true);
$data = $this->execute($query, $args)->fetchAll();
$this->dbtime += microtime(true) - $_start;
return $data;
}
/**
@ -587,7 +595,9 @@ class Database {
* @return mixed|null
*/
public function get_row($query, $args=array()) {
$_start = microtime(true);
$row = $this->execute($query, $args)->fetch();
$this->dbtime += microtime(true) - $_start;
return $row ? $row : null;
}
@ -599,11 +609,13 @@ class Database {
* @return array
*/
public function get_col($query, $args=array()) {
$_start = microtime(true);
$stmt = $this->execute($query, $args);
$res = array();
foreach($stmt as $row) {
$res[] = $row[0];
}
$this->dbtime += microtime(true) - $_start;
return $res;
}
@ -615,11 +627,13 @@ class Database {
* @return array
*/
public function get_pairs($query, $args=array()) {
$_start = microtime(true);
$stmt = $this->execute($query, $args);
$res = array();
foreach($stmt as $row) {
$res[$row[0]] = $row[1];
}
$this->dbtime += microtime(true) - $_start;
return $res;
}
@ -631,7 +645,9 @@ class Database {
* @return mixed
*/
public function get_one($query, $args=array()) {
$_start = microtime(true);
$row = $this->execute($query, $args)->fetch();
$this->dbtime += microtime(true) - $_start;
return $row[0];
}

View File

@ -67,7 +67,7 @@ class User {
*/
public static function by_session(/*string*/ $name, /*string*/ $session) {
global $config, $database;
$row = $database->cache->get("user-session-$name-$session");
$row = $database->cache->get("user-session:$name-$session");
if(!$row) {
if($database->get_driver_name() === "mysql") {
$query = "SELECT * FROM users WHERE name = :name AND md5(concat(pass, :ip)) = :sess";
@ -76,7 +76,7 @@ class User {
$query = "SELECT * FROM users WHERE name = :name AND md5(pass || :ip) = :sess";
}
$row = $database->get_row($query, array("name"=>$name, "ip"=>get_session_ip($config), "sess"=>$session));
$database->cache->set("user-session-$name-$session", $row, 600);
$database->cache->set("user-session:$name-$session", $row, 600);
}
return is_null($row) ? null : new User($row);
}

View File

@ -1344,12 +1344,13 @@ function get_debug_info() {
else {
$commit = " (".$config->get_string("commit_hash").")";
}
$time = sprintf("%5.2f", microtime(true) - $_load_start);
$time = sprintf("%.2f", microtime(true) - $_load_start);
$dbtime = sprintf("%.2f", $database->dbtime);
$i_files = count(get_included_files());
$hits = $database->cache->get_hits();
$miss = $database->cache->get_misses();
$debug = "<br>Took $time seconds and {$i_mem}MB of RAM";
$debug = "<br>Took $time seconds (db:$dbtime) and {$i_mem}MB of RAM";
$debug .= "; Used $i_files files and $_execs queries";
$debug .= "; Sent $_event_count events";
$debug .= "; $hits cache hits and $miss misses";

View File

@ -60,13 +60,13 @@ class Featured extends Extension {
global $config, $database, $page, $user;
$fid = $config->get_int("featured_id");
if($fid > 0) {
$image = $database->cache->get("featured_image_object-$fid");
$image = $database->cache->get("featured_image_object:$fid");
if($image === false) {
$image = Image::by_id($fid);
if($image) { // make sure the object is fully populated before saving
$image->get_tag_array();
}
$database->cache->set("featured_image_object-$fid", $image, 600);
$database->cache->set("featured_image_object:$fid", $image, 600);
}
if(!is_null($image)) {
if(class_exists("Ratings")) {

View File

@ -260,10 +260,10 @@ class Index extends Extension {
#log_debug("index", "Search for ".implode(" ", $search_terms), false, array("terms"=>$search_terms));
$total_pages = Image::count_pages($search_terms);
if(SPEED_HAX && $count_search_terms === 0 && ($page_number < 10)) { // extra caching for the first few post/list pages
$images = $database->cache->get("post-list-$page_number");
$images = $database->cache->get("post-list:$page_number");
if(!$images) {
$images = Image::find_images(($page_number-1)*$page_size, $page_size, $search_terms);
$database->cache->set("post-list-$page_number", $images, 600);
$database->cache->set("post-list:$page_number", $images, 600);
}
}
else {

View File

@ -197,7 +197,7 @@ class PrivMsg extends Extension {
private function count_pms(User $user) {
global $database;
$count = $database->cache->get("pm-count-{$user->id}");
$count = $database->cache->get("pm-count:{$user->id}");
if(is_null($count) || $count === false) {
$count = $database->get_one("
SELECT count(*)
@ -205,7 +205,7 @@ class PrivMsg extends Extension {
WHERE to_id = :to_id
AND is_read = :is_read
", array("to_id" => $user->id, "is_read" => "N"));
$database->cache->set("pm-count-{$user->id}", $count, 600);
$database->cache->set("pm-count:{$user->id}", $count, 600);
}
return $count;
}

View File

@ -23,6 +23,7 @@ class StatsDInterface extends Extension {
$time = microtime(true) - $_load_start;
StatsDInterface::$stats["shimmie.$type.hits"] = "1|c";
StatsDInterface::$stats["shimmie.$type.time"] = "$time|ms";
StatsDInterface::$stats["shimmie.$type.time-db"] = "{$database->dbtime}|ms";
StatsDInterface::$stats["shimmie.$type.memory"] = memory_get_peak_usage(true)."|c";
StatsDInterface::$stats["shimmie.$type.files"] = count(get_included_files())."|c";
StatsDInterface::$stats["shimmie.$type.queries"] = $_execs."|c";

View File

@ -20,7 +20,7 @@ function ctx_log_msg($func, $text, $type) {
microtime(true), # returning a float is 5.0+
php_uname('n'), # gethostname() is 5.3+
posix_getpid(),
posix_getpid(), //gettid(),
function_exists("hphp_get_thread_id") ? hphp_get_thread_id() : posix_getpid(),
$type, $func, $text
);
}