I am not quite sure, but you can give a try. Use require_once() include
like 10 dummy config file, reload the script a couple times, and use lsof
to check if your config files are still open.
Derek
At 03:04 PM 5/9/2001 +1000, Cameron wrote:
>i dont suppose this is a session garbage collection??
>
>
>Cameron
>
>[EMAIL PROTECTED] wrote:
>
> > ID: 10299
> > User Update by: [EMAIL PROTECTED]
> > Status: Critical
> > Bug Type: Performance problem
> > Operating system: FreeBSD 4.2 Stable
> > PHP Version: 4.0.4pl1
> > Description: CPU and Memory Spike
> >
> > What I found out is that using a lot of include_once, require_once +
> session will trigger the CPU and memory spike. Add database access to
> the script can speed up the frequency of the spike. And I also found out
> require_once DO leak memory. pstat -T show that file in use will always
> increase. Somehow require_once forgot to close the file after use. lsof
> can give you a clear picture when you use require_once()
> >
> > I changed my code using cookie and require() statement now. And I
> delete all sess_files in /tmp seems to correct the problem. This is the
> only change I made to eliminate the problem.
> >
> > I can't reproduce the error now because the code that have problems
> have been changed and I don't have the backup. But the combination of A
> lot of include_once, require_once, and session will trigger the spike, I
> am pretty sure because after I changed all that, the problem
> disappear. Old session file in /tmp also contribute to the problem as well.
> >
> > BTW, the last time I checked, CVS version 4.06 in late April still have
> the problem.
> >
> > Previous Comments:
> > ---------------------------------------------------------------------------
> >
> > [2001-05-08 19:26:01] [EMAIL PROTECTED]
> > Is this fairly reproducible?
> > If it is, any chance you could build Apache with debug information
> (--enable-debug in configure), attach to an offending process (gdb
> /path/to/httpd <PID>), and run a backtrace ('bt')?
> >
> > ---------------------------------------------------------------------------
> >
> > [2001-05-07 12:44:51] [EMAIL PROTECTED]
> > marking critical for php 4.0.6
> >
> > ---------------------------------------------------------------------------
> >
> > [2001-04-14 09:00:57] [EMAIL PROTECTED]
> > I found the problem. since the script I use have a lot of include and
> require statement. just a script include a bunch of files and keep
> reloading the page will kill the server in no time. I attach a sample
> config file I usually include, just make a test.php and include this file
> like 10 times to simulate a lot of include files. And then, just keep
> reloading test.php. You should see the script take a lot of CPU time and
> eventually the httpd eat all the CPU time and the process hang. From
> command "top", one of the httpd process keep eating up CPU time.
> >
> > The following is the sample config file
> >
> > <?
> >
> > /*Root directory */
> > $config[root_path] = "/usr2/home/business/test/www";
> > $config[w3b_path] = "/usr2/home/business/test/www/wwwthreads";
> > $config[data_path] = "/usr2/home/business/test/data";
> > $config[rdf_path] = "/usr2/home/business/test/www/rdf";
> >
> > /* database */
> >
> > include $config[root_path]."/db.php";
> >
> > /* global */
> > $config[sitename] = "www.test.net";
> > $config[root_url] = "http://www.test.net/";;
> >
> > // Cookie Setting
> > $config[cookie_path] = "/"; # web root directory
> > $config[CookieURL] = ".test.net";
> > $config[cookieTTL] = 7200; // in seconds
> >
> > $config[minpass] = 3; # Minimum user password length in characters
> >
> > /* language and locale */
> > $config[language] = "english"; # [english] english, [big5]
> BIG5 code
> >
> > $config[locale] = "english"; # Used for translation of
> date-related stuff
> >
> > /* story control */
> > $config[commentmax] = 4096;
> > $config[abstractlen] = 4996; #length of abstract show on first page
> >
> > $config[icon_width] = 100; # Topic icons width
> > $config[timezone] = "HKT"; #Time zone
> >
> > $config[limitnews] = 10; # default number of stories per page
> > $config[older_story_num] = 10; # number of older stories to
> display
> >
> > $config[anon_users] = 0; # 1 to allow anonymous postings
> > # 0 to disable
> >
> > /* theme control */
> >
> > $config[def_theme] = "Main"; # name of default theme (see themes/
> directory for list)
> >
> > /* mail settings */
> > $config[use_fake_email] = 1; # Displays fake email addresses for users
> instead of the real ones
> >
> > $config[notifyEmail] = "[EMAIL PROTECTED]"; #address where
> you want to receive notice
> >
> > //$config[CensorList] =
> array('fuck','cunt','fucker','fucking','pussy','cock','c0ck','cum','bitch','shit');
> > $config[CensorList] = array("/fuck/s","/fuck/s","/fuck/s",
> > "/[a-z]*fuck[a-z]*/is",
> > "/[a-z]*cunt[a-z]*/is",
> > "/[a-z]*pussy[a-z]*/is",
> > "/[a-z]*cock[a-z]*/is",
> > "/[a-z]*c0ck[a-z]*/is",
> > "/[a-z]*shit[a-z]*/is",
> > "/[a-z]*bitch[a-z]*/is",
> > "/[a-z]*diu[a-z]*/is"
> > );
> > # See also specific LOCALE definitions
> >
> > $config[CensorMode] = 3; # 0: no filtering
> > # 1: exact match
> > # 2: match word beginnings
> > # 3: match string anywhere in words
> > $config[CensorReplace] = "[CENSORED]" ;
> >
> > /* allowable HTML tags. Used by check_html()
> > Happily lifted (with mods) from phpslash */
> > $config[AllowableHTML] = array("p"=>1, # 2 means accept all
> qualifiers: <foo bar>
> > "b"=>1, # 1 means accept the tag only: <foo>
> > "i"=>1,
> > "a"=>2,
> > "em"=>1,
> > "br"=>1,
> > "strong"=>1,
> > "blockquote"=>1,
> > "img"=>2,
> > "tt"=>1,
> > "hr"=>1,
> > "li"=>1,
> > "ol"=>1,
> > "div"=>1,
> > "ul"=>1);
> >
> > $config[AllowableHTMLtag] =
> "<b>,<i>,<a>,<em>,<br>,<strong>,<blockquote>,<tt>,<hr>,<li>,<ol>,<div>,<ul>";
> >
> > /* poll settings */
> >
> > $config[maxOptions] = 12; # maximal number of options allowed
> > $config[BarScale] = 1; # scale of result bar (in multiples of
> 100 pixels)
> >
> > $config[warnCheaters] = 1; # 1 - a notice issued on vote second try
> > # 0 - silently ignores the vote
> >
> > $config[maxOptions] = 10;
> >
> > /* story stuff */
> >
> > $reasons = array('As is', # "Normal"
> > 'Offtopic', # Bad Responses
> > 'Flamebait',
> > 'Troll',
> > 'Redundant',
> > 'Insightful', # Good Responses
> > 'Interesting',
> > 'Informative',
> > 'Funny',
> > 'Overrated', # Last two are "special"
> > 'Underrated');
> >
> > if ($config[dateString] == "") {
> > switch ($config[locale]) {
> > // specifier specs can be found on
> http://www.php.net/manual/function.strftime.php /menthos
> > case "english": $config[dateString] = "%a, %b %d,%Y @
> %I:%M %p"; break;
> > case "french": $config[dateString] = "%a %d %B %Y
> à %H:%M"; break;
> > case "german": $config[dateString] = "%a, %d. %b %Y
> %H:%M"; break;
> > case "italian": $config[dateString] = "%a %d %b %Y
> %H:%M"; break;
> > case "swedish": $config[dateString] = "%a %d %b %Y,
> %H:%M"; break;
> > case "dutch": $config[dateString] = "%a, %d. %b %Y
> %H:%M"; break;
> > case "spanish": $config[dateString] = "%a %d %b %Y
> %H:%M"; break;
> > default: $config[dateString] = "%a %b %d @
> %H:%M"; break;
> > }
> > }
> >
> > ?>
> >
> > ---------------------------------------------------------------------------
> >
> > [2001-04-14 07:59:05] [EMAIL PROTECTED]
> > This is vmstat show if I keep reloading the script
> >
> > procs memory page disks faults cpu
> > r b w avm fre flt re pi po fr sr da0 da1 in sy cs us
> sy id
> > 1 4 0 73860 13432 4 0 0 0 0 0 2 0 382 3804 258
> 16 1 83
> > 0 4 0 73860 13424 4 0 0 0 0 0 0 0 357 3789 245
> 15 4 81
> > 1 4 0 73860 13424 4 0 0 0 0 0 0 0 373 3763 263
> 14 3 83
> > 2 4 0 73860 13416 142 0 0 0 139 0 0 0 402 6155 285
> 26 4 70
> > 0 4 0 73860 13408 4 0 0 0 4 0 11 0 366 3179 220
> 11 2 87
> > 1 4 0 73860 13400 4 0 0 0 0 0 0 0 358 3943 257
> 15 3 82
> > 2 4 0 73860 13400 4 0 0 0 0 0 0 0 340 4201 240 12
> 42 45
> > 2 4 0 73860 13400 4 0 0 0 0 0 0 0 240 1842 90 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 19 0 265 1802 98 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 241 1753 93 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 239 1729 96 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 241 1612 94 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 243 1576 97 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 243 1541 98 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 239 1487 102 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 241 1401 93 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 251 1405 100 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 246 1338 101 0
> 100 0
> > 2 4 0 73116 13400 4 0 0 0 0 0 0 0 238 1297 94 0
> 100 0
> > 2 4 0 73860 13400 4 0 0 0 0 0 0 2 243 1282 100 0
> 100 0
> > 2 4 0 73860 13400 4 0 0 0 0 0 0 0 239 1223 89 0
> 100 0
> > 2 4 0 73860 13400 4 0 0 0 2 0 9 16 300 1180 92 0
> 100 0
> > procs memory page disks faults cpu
> > r b w avm fre flt re pi po fr sr da0 da1 in sy cs us
> sy id
> > 3 4 0 73860 13400 4 0 0 0 0 0 0 0 251 1156 90 0
> 100 0
> > 3 4 0 50296 13400 4 0 0 0 0 0 6 0 258 1116 93 0
> 100 0
> > 2 4 0 50296 13400 4 0 0 0 0 0 0 0 240 1108 83 0
> 100 0
> > 3 4 0 50296 13400 4 0 0 0 0 0 0 0 245 1064 92 0
> 100 0
> > 3 4 0 46988 13400 4 0 0 0 0 0 0 0 242 1031 83 0
> 100 0
> > 3 4 0 46988 13400 4 0 0 0 0 0 0 0 242 989 82 0
> 100 0
> > 2 4 0 46988 13400 4 0 0 0 0 0 0 0 243 1010 85 0
> 100 0
> > 2 4 0 46988 13400 4 0 0 0 0 0 1 0 241 985 81 0
> 100 0
> > 2 4 0 46988 13400 4 0 0 0 0 0 0 0 241 971 89 1
> 99 0
> > 2 4 0 46988 13400 4 0 0 0 0 0 0 0 243 940 74 0
> 100 0
> > 3 4 0 46988 13400 4 0 0 0 2 0 8 0 250 926 80 0
> 100 0
> > 2 4 0 46988 13400 4 0 0 0 0 0 1 0 245 930 88 0
> 100 0
> > 3 4 0 46988 13400 4 0 0 0 0 0 0 0 240 905 80 0
> 100 0
> > 2 4 0 46988 13400 4 0 0 0 0 0 7 0 253 920 100 0
> 98 2
> > 3 4 0 47332 13056 90 0 0 0 0 0 0 0 239 2113 116 3
> 97 0
> > 2 4 0 46588 13048 4 0 0 0 0 0 1 0 243 2334 103 1
> 99 0
> > 1 4 0 46244 13392 4 0 0 0 86 0 8 0 276 4383 140 7
> 19 74
> > 1 4 0 47896
> 13184 59 0 0 0 0 0 2 0 275 621 56 7 1 92
> > 0 4 0 47896
> 13152 20 0 0 0 0 0 1 0 253 471 46 6 1 93
> > 1 4 0 47492
> 13372 18 0 0 0 64 0 0 0 251 478 43 0 1 99
> > 0 4 0 47492
> 13372 4 0 0 0 0 0 0 0 235 440 40 0 0 100
> > 0 4 0 47492
> 13372 4 0 0 0 0 0 0 0 238 442 40 0 2 98
> >
> > The CPU time drop from 80 all the way to zero and make the Apache hang
> for like 30 seconds and the resume back again. It happens VERY often if
> I only have like 30 users surf the website at the same time. It pretty
> much bring the web server down if I have around 50 users surft the site
> >
> > ---------------------------------------------------------------------------
> >
> > [2001-04-11 18:03:59] [EMAIL PROTECTED]
> > I am running on FreeBSD 4.2 Stable, Apache 1.3.19 + PHP 4.0.4pl1 +
> Modssl on a Dual P2 400mhz with 256mb ram. From time to time, one of the
> httpd process will eat up all the CPU time and memory, and after around 5
> to 10 seconds, it goes back to normal Even a Very simple script like
> >
> > <?
> > echo "test";
> > ?>
> >
> > can make it happen. 1 out of 25 reload of the above script can make the
> spike happen. But the web server do not crash though. If I run on a
> script with heavy database access, it happen 1 out of 10 if I press
> reload button continously.
> >
> > BTW, is that normal for Apache to take up 30% of the CPU time to excute
> one single PHP-database-driven page?
> >
> > I search the bugs database and I found another user have the exact
> problem like what I am having right now. His bug id is #9154.
> >
> > This is how I configure PHP
> > ./configure --with-mysql=/usr/local/mysql
> --with-apxs=/usr/local/apache/bin/apxs
> --with-config-file-path=/usr/local/etc --enable-track-vars
> --enable-ftp --with-gd=/usr/local --with-pcre-regex=/usr/local/
> > --with-jpeg-dir=/usr/local --with-xpm-dir=/usr/X11R6
> >
> > With or Without modssl enable does not make a difference. Both can
> cause the spike.
> >
> > ---------------------------------------------------------------------------
> >
> > The remainder of the comments for this report are too long. To view
> the rest of the comments, please view the bug report online.
> >
> > Full Bug description available at: http://bugs.php.net/?id=10299
> >
> > --
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> > To unsubscribe, e-mail: [EMAIL PROTECTED]
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