From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Re: Status of optimiza tions - can have n ative buffers
Date: Sun, 5 Mar 2017 08:29:57 -0800 [thread overview]
Message-ID: <170305082957.ZM24917@torch.brasslantern.com> (raw)
In-Reply-To: <1488706321.1960459.900808664.5940C1B0@webmail.messagingengine.com>
On Mar 5, 1:32am, Sebastian Gniazdowski wrote:
}
} result from with-patch current-head run:
}
} 29,965,124,064 arrlen_le [/usr/local/bin/zsh-5.3.1-dev-0_O2_bopt]
} 29,965,124,049 arrlen_gt [/usr/local/bin/zsh-5.3.1-dev-0_O2_bopt]
} 6,668,004,434 arrlen [/usr/local/bin/zsh-5.3.1-dev-0_O2_bopt]
Well now THAT is interesting. Same total number of calls but now
they're split exactly half _le and half _gt.
This in turn strongly suggests that the calls are the one my patch
changed in params.c, and the one currently at line 2567 in subst.c.
If we could figure out whether these two are actually examining the
length of the same array each time, there might be a way (cache in
the struct value, as with the "arr" field?) to cut this in half.
next prev parent reply other threads:[~2017-03-05 16:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-04 13:49 Status of optimizations – can have native buffers Sebastian Gniazdowski
2017-03-04 15:33 ` Sebastian Gniazdowski
2017-03-05 0:00 ` Status of optimiza tions - can have n ative buffers Bart Schaefer
2017-03-05 9:32 ` Sebastian Gniazdowski
2017-03-05 16:29 ` Bart Schaefer [this message]
2017-03-13 9:01 ` Status of optimizations – can have native buffers Sebastian Gniazdowski
2017-03-13 10:51 ` Sebastian Gniazdowski
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