From: Adam Carter <adamcarter3@gmail.com>
To: "gentoo-user@lists.gentoo.org" <gentoo-user@lists.gentoo.org>
Subject: Re: [gentoo-user] cflags for atom
Date: Tue, 22 Oct 2013 11:45:35 +1100 [thread overview]
Message-ID: <CAC=wYCHQgRGz4OesY-3Z-99npurEmZRVhGQMe4gUVb1nrg_jGA@mail.gmail.com> (raw)
In-Reply-To: <CAKkyAYYs-2a0tvMw+5tXqGn_auFmO6sLYLAXW3K1NFLGKBFWYQ@mail.gmail.com>
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If you havent already, I would first verify that its actually CPU bound,
before changing CFLAGs and recompiling everything. So take a look at top,
vmstat, mpstat etc when you're noticing slowness. If it is truely CPU bound
and you're going to recompile everything, you could consider upgrading to
the ~ version of gcc first, with the assumption that the optimizations
maybe be better. However, my gut feeling is that you wont get much or any
improvement over your current CFLAGs.
The i686 and -Os ideas are interesting. See if you can find any benchmarks.
Also - try diffing the kernel .configs - maybe you missed something
important on the slow system.
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next prev parent reply other threads:[~2013-10-22 0:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-21 14:09 [gentoo-user] cflags for atom Silvio Siefke
2013-10-21 14:33 ` thegeezer
2013-10-21 15:08 ` Silvio Siefke
2013-10-21 15:15 ` Frank Steinmetzger
2013-10-21 16:09 ` Silvio Siefke
2013-10-21 16:40 ` Frank Steinmetzger
2013-10-21 16:54 ` housegregory299
2013-10-21 15:20 ` Joseph
2013-10-21 15:40 ` Frank Steinmetzger
2013-10-22 0:31 ` Alecks Gates
2013-10-22 0:45 ` Adam Carter [this message]
2013-10-22 2:20 ` Frank Steinmetzger
2013-10-22 12:40 ` [gentoo-user] " James
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