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Message-ID: <07695a41-d027-a585-fa2f-5edae4d23af4@adelielinux.org>
Date: Thu, 30 Aug 2018 13:16:27 -0500
From: "A. Wilcox" <awilfox@...lielinux.org>
To: musl@...ts.openwall.com
Subject: Re: malloc implementation survey: omalloc
On 07/30/18 20:44, Rich Felker wrote:
> One thing that would probably be really useful is empirical data on
> what range of sizes "need to be fast" for bloated OO stuff that does
> rapid malloc/free cycles. Conceptually it should only be small sizes,
> assuming the whole allocated space is actually used, since beyond a
> certain size, actual use of the allocated memory (loads/stores) will
> dominate the time spent allocating and freeing it, but the cutoff
> isn't clear.
>
> Rich
>
I can probably instrument the malloc() patterns of Firefox and Plasma
Shell. Can you provide me the desired format?
I would probably simply change musl to print "a:%lld\n" to stderr for
each allocation, and then I could turn it into better formatted data.
Best,
--arw
--
A. Wilcox (awilfox)
Project Lead, Adélie Linux
http://adelielinux.org
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