From: Victor Forsyuk <force@altlinux.org>
To: ALT Linux Team development discussions <devel@lists.altlinux.org>
Subject: Re: [devel] Dramatic g++4.4 speed regression (was: g++4.3 vs g++4.4)
Date: Wed, 20 Jan 2010 17:53:21 +0200
Message-ID: <8b9c685c1001200753h63cc1839g7dd16abc14e92e79@mail.gmail.com> (raw)
In-Reply-To: <cc557aab1001191433k39377f9dmde1995f5b39f9296@mail.gmail.com>
2010/1/20 Kirill A. Shutemov <kirill@shutemov.name>:
>>
>> Поскольку у Вадима на федоровском 4.4.2-7 проблем нет, то
>> напрашивается вывод, что причина регресии в альтовских патчах...
>
> Я попробую разобраться.
>
> Как hotfix можете добавить -fomit-frame-pointer в флаги компиляции
> или убрать -g. Вроде помогает.
Подтверждаю, помогает!
При убирании -g пакет у меня собирается за 8:16 - это самый быстрый результат.
Если оставить -g, но при этом добавить -fomit-frame-pointer, то
собирается за 9:46 - вполне разумный оверхед.
prev parent reply other threads:[~2010-01-20 15:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-19 16:59 Victor Forsyuk
2010-01-19 17:10 ` Dmitry V. Levin
2010-01-19 17:18 ` Victor Forsyuk
2010-01-19 22:33 ` Kirill A. Shutemov
2010-01-19 23:02 ` Dmitry V. Levin
2010-01-20 1:57 ` [devel] Dramatic g++4.4 -g speed regression Dmitry V. Levin
2010-01-20 11:52 ` Sergey V Turchin
2010-01-20 16:04 ` Victor Forsyuk
2010-01-20 16:14 ` Sergey V Turchin
2010-01-20 23:32 ` Igor Zubkov
2010-01-20 8:06 ` [devel] Dramatic g++4.4 speed regression (was: g++4.3 vs g++4.4) Boris Savelev
2010-01-21 12:32 ` Victor Forsyuk
2010-01-21 15:08 ` [devel] Dramatic g++4.4 -g speed regression Dmitry V. Levin
2010-01-21 17:18 ` Victor Forsyuk
2010-01-21 19:01 ` Dmitry V. Levin
2010-01-22 11:02 ` Victor Forsyuk
2010-01-22 13:48 ` Kirill A. Shutemov
2010-01-20 15:53 ` Victor Forsyuk [this message]
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