Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:53174 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 78790 invoked from network); 7 Jun 2011 19:03:13 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 7 Jun 2011 19:03:13 -0000 Authentication-Results: pb1.pair.com header.from=david.zuelke@bitextender.com; sender-id=unknown Authentication-Results: pb1.pair.com smtp.mail=david.zuelke@bitextender.com; spf=permerror; sender-id=unknown Received-SPF: error (pb1.pair.com: domain bitextender.com from 80.237.132.12 cause and error) X-PHP-List-Original-Sender: david.zuelke@bitextender.com X-Host-Fingerprint: 80.237.132.12 wp005.webpack.hosteurope.de Received: from [80.237.132.12] ([80.237.132.12:48570] helo=wp005.webpack.hosteurope.de) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id E5/85-50253-FE57EED4 for ; Tue, 07 Jun 2011 15:03:12 -0400 Received: from dslb-092-075-002-048.pools.arcor-ip.net ([92.75.2.48] helo=[192.168.0.102]); authenticated by wp005.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) id 1QU1YS-0004DB-LA; Tue, 07 Jun 2011 21:03:08 +0200 Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/signed; boundary=Apple-Mail-22-601190290; protocol="application/pkcs7-signature"; micalg=sha1 In-Reply-To: <1307471210.2671.13.camel@chronos> Date: Tue, 7 Jun 2011 21:03:07 +0200 Cc: Julien Pauli , internals@lists.php.net Message-ID: References: <73A0E06E-55E0-4C48-B8F8-BCAFA3216892@bitextender.com> <33db85fd3ebaa4f330120da5fa6445e1@naenius.com> <1C32E9BA-4858-4E24-89DA-0F36DFED352B@bitextender.com> <1307468695.2671.7.camel@chronos> <2B395C3E-A66B-4A0E-8F14-31B1154ECDC9@bitextender.com> <1307471210.2671.13.camel@chronos> To: Mike van Riel X-Mailer: Apple Mail (2.1084) X-bounce-key: webpack.hosteurope.de;david.zuelke@bitextender.com;1307473392;8836d33c; Subject: Re: [PHP-DEV] Trying to find out where the memory went From: david.zuelke@bitextender.com (=?iso-8859-1?Q?David_Z=FClke?=) --Apple-Mail-22-601190290 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 144 (not 114!) bytes is for an integer; I'm not quite sure what the = overheads are for arrays, which token_get_all() produces in abundance :) = An empty array seems to occupy 312 bytes of memory. Also, strings have memory allocated in 8 byte increments as far as I = know, so "1" eats up 8 bytes, and "12345678901234567" will consume 24 = bytes for the raw text, not 17. David On 07.06.2011, at 20:26, Mike van Riel wrote: > Am i then also correct to assume that the output of > memory_get_peak_usage is used for determining the memory_limit? >=20 > Also: after correcting with your new information (zval =3D 114 bytes > instead of 68) I still have a rather large offset: >=20 > 640952+2165950+114+(276697*114)+(276697*3*114)+2165950 =3D = 131146798 =3D > 125M >=20 > (not trying to be picky here; I just don't understand) >=20 > _If_ my calculations are correct then a zval should be approx 216 = bytes > (excluding string contents): >=20 > ((244000000-640952-2165950-2165950) / 4) / 276697 =3D 215.9647B >=20 > Mike >=20 > On Tue, 2011-06-07 at 19:50 +0200, David Z=FClke wrote: >> memory_get_peak_usage() is the maximum amount of memory used by the = VM of PHP (but not by some extensions for instance) up until the point = where that function is called. So the actual memory usage may be even = higher IIRC. But yeah, you're basically right. I've explained in another = message why it might be so much more than you expected (zval overhead, = basically) >>=20 >> David >=20 >=20 >=20 --Apple-Mail-22-601190290 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIMZDCCBW4w ggRWoAMCAQICECzy3OO4bIaKwclpYXzU0GAwDQYJKoZIhvcNAQEFBQAwgd0xCzAJBgNVBAYTAlVT MRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNpZ24gVHJ1c3QgTmV0d29y azE7MDkGA1UECxMyVGVybXMgb2YgdXNlIGF0IGh0dHBzOi8vd3d3LnZlcmlzaWduLmNvbS9ycGEg KGMpMDkxHjAcBgNVBAsTFVBlcnNvbmEgTm90IFZhbGlkYXRlZDE3MDUGA1UEAxMuVmVyaVNpZ24g Q2xhc3MgMSBJbmRpdmlkdWFsIFN1YnNjcmliZXIgQ0EgLSBHMzAeFw0xMDEwMTQwMDAwMDBaFw0x MTEwMTUyMzU5NTlaMIIBGzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZlcmlT aWduIFRydXN0IE5ldHdvcmsxRjBEBgNVBAsTPXd3dy52ZXJpc2lnbi5jb20vcmVwb3NpdG9yeS9S 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