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[92.78.93.177]) by smtp.gmail.com with ESMTPSA id y66sm13165118wrb.39.2017.04.09.04.07.10 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 09 Apr 2017 04:07:11 -0700 (PDT) In-Reply-To: <83wpatlxrh.fsf@gnu.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:131404 Archived-At: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --muJnVhmUrT42skJkh7BXmehdXr3VbbPlD Content-Type: multipart/mixed; boundary="a2dhWxP386MFkqWr0XBuawPO96MeSrCX8"; protected-headers="v1" From: Gennady Uraltsev To: Eli Zaretskii Cc: 26402@debbugs.gnu.org Message-ID: Subject: Re: bug#26402: 25.2; Font rendering extremely slow on any non-default font References: <588df69e-068d-e2c5-3c2f-3ca238313aa9@gmail.com> <83inmfm00v.fsf@gnu.org> <04e03d3a-62f1-82f2-b7a8-9e36cf5e826b@gmail.com> <83h91ynam6.fsf@gnu.org> <541302bf-540b-aedb-4ca4-2ba3acfe495e@gmail.com> <83bms6n7hk.fsf@gnu.org> <2a3d3577-ccbf-c30f-15ab-390cd1cd5278@gmail.com> <834lxym8x4.fsf@gnu.org> <83wpatlxrh.fsf@gnu.org> In-Reply-To: <83wpatlxrh.fsf@gnu.org> --a2dhWxP386MFkqWr0XBuawPO96MeSrCX8 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Dear Eli, 1) I must admit that I am not very familiar with GDB. I have done some programming so I am familiar with the basic concepts but not the tool. If you give me an outline of what to do I can try to do it (I do not mean step by step instructions, I guess I can figure something out and if I really can't I could ask for clarifications). 2) Currently this is what I am doing. I have some virtual machines of otherdistributions (vanilla installations) that I use to test for bugs (cross-check). I see that on kubuntu 16.10 with emacs 24.5.1 and with emacs25.1.2 the problem does not appear: everything works smoothly. 3) Just a question: is there a way to ask emacs to dump the info about the versions of all the libraries it uses? Let me know what to do. Thanks! Gena On 09/04/17 11:45, Eli Zaretskii wrote: > > Date: Sun, 09 Apr 2017 08:44:55 +0300 > > From: Eli Zaretskii > > Cc: 26402@debbugs.gnu.org > > > >> The profiler profiles are attached. > > > > The profiles clearly tell the problem is related to font metrics, but= > > they don't tell what exactly causes the slow-down or why. Sorry. > > How proficient are you with using GDB? If I ask you to step through a > certain Emacs function and tell which of its parts is the slow one, > can you do that? I can give more detailed instructions if needed. > > TIA > --a2dhWxP386MFkqWr0XBuawPO96MeSrCX8-- --muJnVhmUrT42skJkh7BXmehdXr3VbbPlD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEJQQMgTpmrxMi2uL37hfeU97djTEFAljqFdcACgkQ7hfeU97d jTF1cBAAyCsus89FcINX19ogeHi5glkr82Uk5wt+iDLHh0109PnMSn50IE3BuNwq LP3rXvfH3P3QUdFUVli1wQWlEHdaoT5J1wSKPEbH5UCk+8sZlcH9zodDYjP0ULnR 9VecgUgWo64VO24fncqqzmkg8IWFdDHhplsYvoQPRVm3wPP2bf2fAykfjr+6sxSA MIBKFQtrasfFpyJN1z7w3pYMSQ+2votMZQ4FPcKsdo+yXDFlDOWJMn1Mvz4JnTcT 0Sb/PlQz8bcE50CnWy8ou/xCax+47ZGoUHkNslDoFODaz17Vt7PdMjmd4fuPIa35 cqOGTpHLycYzC6QF37Ure1Qb3qf+RSh9zWRJlfa6i+sOpwj2RimwgM9LMw3pi53c NLXMbkhLgZ9lE69httd30IDjDGT203UVSt8/YcSJCD2keNmF0QB0X4t2AfQM9vZc 9Ob4qPxH4t5aDawaGBpw8z49Dp0oB3cdLBRjy1LD2OXpeXr9t9CJjyO79LMWyNvh BLYkYgmz1Wvs/SG+Z2TWXb0ZtzrdZS7u4zL7PCX1m8mCpNxm8hgw5RweB2CHJ1kX AlemoIUkK0dz1JvxoRUboRmpc2mmwxDFckXPeU2hDqmQ95SVFspIrJHLmiauAAGg 1QwW4jrRwqrqG48qelpygpoWoOSNfZCmnavaZaoEVpLOmSV0pzU= =FhHN -----END PGP SIGNATURE----- --muJnVhmUrT42skJkh7BXmehdXr3VbbPlD--